/* ================================
   SkinWise - Premium Design System
   Warm, luxurious, human-centered
   ================================ */

@import url('https://fonts.googleapis.com/css2?family=Crimson+Pro:wght@300;400;500;600;700&family=DM+Sans:wght@400;500;600;700&display=swap');

:root {
    /* Warm Premium Color Palette */
    --color-cream: #FBF8F3;
    --color-warm-white: #FFFCF7;
    --color-soft-peach: #FFE8D6;
    --color-terracotta: #E07A5F;
    --color-terracotta-light: #F2A58F;
    --color-terracotta-dark: #C86750;
    --color-sage: #81B29A;
    --color-sage-light: #A8D5BA;
    --color-sage-dark: #6B9580;
    --color-warm-gray: #5F5449;
    --color-soft-gray: #9D9186;
    --color-light-gray: #E8E4DF;

    /* Semantic Colors - Warm and natural */
    --color-success: #81B29A;
    --color-success-bg: #F0F7F3;
    --color-warning: #F4A261;
    --color-warning-bg: #FEF6EF;
    --color-danger: #E76F51;
    --color-danger-bg: #FDF0ED;

    /* Background Layers */
    --color-bg: var(--color-warm-white);
    --color-bg-secondary: var(--color-cream);
    --color-bg-elevated: #FFFFFF;
    --color-surface: rgba(224, 122, 95, 0.04);
    --color-surface-hover: rgba(224, 122, 95, 0.08);
    --color-border: rgba(95, 84, 73, 0.12);
    --color-border-light: rgba(95, 84, 73, 0.06);

    /* Text Colors */
    --color-text: var(--color-warm-gray);
    --color-text-secondary: var(--color-soft-gray);
    --color-text-muted: #B8AFA5;
    --color-heading: #3D3530;

    /* Typography */
    --font-display: 'Crimson Pro', Georgia, serif;
    --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.375rem;
    --font-size-2xl: 1.75rem;
    --font-size-3xl: 2.5rem;
    --font-size-4xl: 3.5rem;
    --font-weight-light: 300;
    --font-weight-normal: 400;
    --font-weight-medium: 500;
    --font-weight-semibold: 600;
    --font-weight-bold: 700;

    /* Generous Spacing - Premium feel */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-5: 1.5rem;
    --space-6: 2rem;
    --space-8: 3rem;
    --space-10: 4rem;
    --space-12: 5rem;
    --space-16: 8rem;

    /* Soft, Organic Radii */
    --radius-sm: 0.5rem;
    --radius-md: 0.75rem;
    --radius-lg: 1.25rem;
    --radius-xl: 1.75rem;
    --radius-2xl: 2.5rem;
    --radius-full: 9999px;

    /* Soft, Elegant Shadows */
    --shadow-xs: 0 1px 2px rgba(95, 84, 73, 0.06);
    --shadow-sm: 0 2px 8px rgba(95, 84, 73, 0.08);
    --shadow-md: 0 4px 16px rgba(95, 84, 73, 0.1);
    --shadow-lg: 0 8px 32px rgba(95, 84, 73, 0.12);
    --shadow-glow: 0 0 40px rgba(224, 122, 95, 0.15);

    /* Refined Transitions */
    --transition-fast: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 350ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-Index */
    --z-nav: 100;
    --z-modal: 200;
    --z-tooltip: 250;
    --z-toast: 300;
}

/* ================================
   Base Styles
   ================================ */

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 16px;
    scroll-behavior: smooth;
    overscroll-behavior: none;
}

body {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-normal);
    line-height: 1.65;
    color: var(--color-text);
    background-color: var(--color-bg);
    min-height: 100vh;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;

    /* Safe area support */
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
    padding-left: env(safe-area-inset-left);
    padding-right: env(safe-area-inset-right);

    -webkit-overflow-scrolling: touch;
    touch-action: manipulation;
}

#app {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* Premium Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-display);
    color: var(--color-heading);
    font-weight: var(--font-weight-semibold);
    line-height: 1.2;
    letter-spacing: -0.02em;
}

/* ================================
   Navigation
   ================================ */

.nav-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: rgba(255, 252, 247, 0.95);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-top: 1px solid var(--color-border-light);
    padding: var(--space-3) var(--space-4);
    padding-bottom: max(var(--space-3), env(safe-area-inset-bottom));
    z-index: var(--z-nav);
    box-shadow: 0 -2px 16px rgba(95, 84, 73, 0.04);
}

.nav-brand {
    display: none;
}

.nav-links {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 500px;
    margin: 0 auto;
}

.nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-base);
    border-radius: var(--radius-lg);
    min-height: 44px;
    min-width: 44px;
    -webkit-tap-highlight-color: rgba(224, 122, 95, 0.1);
    user-select: none;
}

.nav-link:hover {
    color: var(--color-terracotta);
    background: var(--color-surface);
}

.nav-link:active {
    transform: scale(0.96);
}

.nav-link.active {
    color: var(--color-terracotta);
    font-weight: var(--font-weight-semibold);
}

.nav-link-icon {
    font-size: var(--font-size-xl);
    transition: transform var(--transition-base);
}

.nav-link.active .nav-link-icon {
    transform: scale(1.1);
}

/* Desktop Navigation */
@media (min-width: 768px) {
    .nav-bar {
        top: 0;
        bottom: auto;
        border-top: none;
        border-bottom: 1px solid var(--color-border-light);
        padding: var(--space-5) var(--space-8);
        display: flex;
        justify-content: space-between;
        align-items: center;
    }

    .nav-brand {
        display: flex;
        align-items: center;
        gap: var(--space-3);
    }

    .nav-icon {
        font-size: var(--font-size-2xl);
    }

    .nav-title {
        font-family: var(--font-display);
        font-size: var(--font-size-2xl);
        font-weight: var(--font-weight-bold);
        color: var(--color-heading);
        letter-spacing: -0.02em;
    }

    .nav-links {
        gap: var(--space-2);
    }

    .nav-link {
        flex-direction: row;
        gap: var(--space-2);
        padding: var(--space-3) var(--space-5);
        font-size: var(--font-size-sm);
    }
}

/* ================================
   Main Content
   ================================ */

.main-content {
    flex: 1;
    padding: var(--space-6) var(--space-4);
    padding-bottom: calc(90px + var(--space-6));
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
}

@media (min-width: 768px) {
    .main-content {
        padding: calc(100px + var(--space-10)) var(--space-8) var(--space-10);
    }
}

/* ================================
   Pages & Animations
   ================================ */

.page {
    display: none;
    animation: fadeInUp var(--transition-slow);
}

.page.active {
    display: block;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

@keyframes gentleFloat {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

@keyframes shimmer {
    0% {
        background-position: -200% center;
    }

    100% {
        background-position: 200% center;
    }
}

.page-title {
    font-size: var(--font-size-2xl);
    font-family: var(--font-display);
    color: var(--color-heading);
    margin-bottom: var(--space-3);
}

.page-subtitle {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    font-size: var(--font-size-lg);
}

/* ================================
   Hero Section
   ================================ */

.hero {
    text-align: center;
    padding: var(--space-10) 0;
    position: relative;
}

.hero::before {
    content: '';
    position: absolute;
    top: -10%;
    left: 50%;
    transform: translateX(-50%);
    width: 120%;
    height: 120%;
    background: radial-gradient(circle at center, rgba(224, 122, 95, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}

.hero-content {
    margin-bottom: var(--space-12);
}

.hero-title {
    font-family: var(--font-display);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    line-height: 1.15;
    margin-bottom: var(--space-5);
    color: var(--color-heading);
    letter-spacing: -0.03em;
}

@media (min-width: 768px) {
    .hero-title {
        font-size: var(--font-size-4xl);
    }
}

.gradient-text {
    background: linear-gradient(135deg, var(--color-terracotta) 0%, var(--color-sage) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    max-width: 560px;
    margin: 0 auto var(--space-8);
    line-height: 1.7;
}

.hero-features {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-5);
    margin-top: var(--space-12);
}

@media (min-width: 640px) {
    .hero-features {
        grid-template-columns: repeat(3, 1fr);
    }
}

.feature-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-8) var(--space-6);
    text-align: center;
    transition: all var(--transition-base);
    position: relative;
    overflow: hidden;
}

.feature-card::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(224, 122, 95, 0.06) 0%, transparent 70%);
    opacity: 0;
    transition: opacity var(--transition-slow);
}

.feature-card:hover {
    transform: translateY(-4px);
    border-color: var(--color-terracotta-light);
    box-shadow: var(--shadow-lg);
}

.feature-card:hover::before {
    opacity: 1;
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: var(--space-5);
    display: inline-block;
    transition: transform var(--transition-slow);
}

.feature-card:hover .feature-icon {
    animation: gentleFloat 2s ease-in-out infinite;
}

.feature-card h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-3);
}

.feature-card p {
    font-size: var(--font-size-base);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ================================
   Buttons
   ================================ */

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-4) var(--space-6);
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    border: none;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 44px;
    min-width: 44px;
    -webkit-tap-highlight-color: transparent;
    user-select: none;
    touch-action: manipulation;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--color-terracotta);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2) 0%, transparent 100%);
    opacity: 0;
    transition: opacity var(--transition-base);
}

.btn-primary:hover {
    background: var(--color-terracotta-dark);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-primary:hover::before {
    opacity: 1;
}

.btn-primary:active {
    transform: translateY(0) scale(0.98);
}

.btn-primary>* {
    position: relative;
    z-index: 1;
}

.btn-secondary {
    background: var(--color-bg-elevated);
    color: var(--color-text);
    border: 1.5px solid var(--color-border);
}

.btn-secondary:hover {
    background: var(--color-cream);
    border-color: var(--color-terracotta);
    transform: translateY(-2px);
}

.btn-large {
    padding: var(--space-5) var(--space-8);
    font-size: var(--font-size-lg);
}

.btn-icon {
    font-size: 1.25em;
}

/* ================================
   Scanner Section
   ================================ */

.scan-container {
    max-width: 560px;
    margin: 0 auto;
}

.scan-tabs {
    display: flex;
    gap: var(--space-2);
    margin-bottom: var(--space-8);
    background: var(--color-cream);
    padding: var(--space-2);
    border-radius: var(--radius-xl);
}

.scan-tab {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    padding: var(--space-3) var(--space-4);
    background: transparent;
    border: none;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    min-height: 44px;
}

.scan-tab:hover {
    color: var(--color-text);
    background: rgba(224, 122, 95, 0.06);
}

.scan-tab.active {
    background: white;
    color: var(--color-terracotta);
    box-shadow: var(--shadow-xs);
}

.scan-panel {
    display: none;
}

.scan-panel.active {
    display: block;
    animation: fadeIn var(--transition-base);
}

.scanner-box {
    background: var(--color-cream);
    border: 2px dashed var(--color-border);
    border-radius: var(--radius-xl);
    overflow: hidden;
    margin-bottom: var(--space-5);
}

#reader video {
    border-radius: var(--radius-lg);
}

.scan-hint {
    text-align: center;
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
}

/* ================================
   Input Fields
   ================================ */

.input-group {
    margin-bottom: var(--space-5);
}

.input-group label {
    display: block;
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.input-field {
    width: 100%;
    padding: var(--space-4) var(--space-5);
    font-family: inherit;
    font-size: var(--font-size-base);
    color: var(--color-text);
    background: var(--color-bg-elevated);
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-lg);
    transition: all var(--transition-base);
    min-height: 48px;
}

.input-field:focus {
    outline: none;
    border-color: var(--color-terracotta);
    box-shadow: 0 0 0 4px rgba(224, 122, 95, 0.1);
    background: white;
}

.input-field::placeholder {
    color: var(--color-text-muted);
}

.textarea-field {
    resize: vertical;
    min-height: 140px;
    line-height: 1.65;
}

/* ================================
   Profile Section
   ================================ */

.profile-container {
    max-width: 640px;
    margin: 0 auto;
}

.profile-section {
    margin-bottom: var(--space-10);
}

.profile-section h3 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-5);
}

.profile-section .hint {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    color: var(--color-text-muted);
}

.option-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
}

@media (min-width: 480px) {
    .option-grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

@media (min-width: 640px) {
    .option-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.option-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-5);
    background: var(--color-bg-elevated);
    border: 1.5px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    color: var(--color-text);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    cursor: pointer;
    transition: all var(--transition-base);
    min-height: 44px;
    min-width: 44px;
}

.option-btn:hover {
    border-color: var(--color-terracotta-light);
    background: var(--color-cream);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.option-btn.selected {
    border-color: var(--color-terracotta);
    background: rgba(224, 122, 95, 0.08);
    border-width: 2px;
}

.option-icon {
    font-size: 2rem;
}

.option-label {
    font-weight: var(--font-weight-semibold);
}

/* ================================
   Results Section
   ================================ */

.results-container {
    max-width: 760px;
    margin: 0 auto;
}

.result-header {
    text-align: center;
    margin-bottom: var(--space-10);
}

.product-name {
    font-family: var(--font-display);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-3);
    color: var(--color-heading);
}

.product-brand {
    color: var(--color-text-secondary);
    font-size: var(--font-size-lg);
}

/* Verdict Card */
.verdict-card {
    background: var(--color-bg-elevated);
    border: 2px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-10) var(--space-6);
    text-align: center;
    margin-bottom: var(--space-8);
    position: relative;
    overflow: hidden;
    animation: fadeInUp 0.6s ease-out;
}

.verdict-icon {
    font-size: 5rem;
    margin-bottom: var(--space-5);
    display: inline-block;
    animation: fadeInUp 0.7s ease-out 0.2s both;
}

.verdict-title {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-3);
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.verdict-subtitle {
    color: var(--color-text-secondary);
    font-size: var(--font-size-base);
    line-height: 1.7;
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.verdict-card.recommended {
    background: linear-gradient(135deg, rgba(129, 178, 154, 0.06) 0%, transparent 100%);
    border-color: var(--color-sage-light);
}

.verdict-card.caution {
    background: linear-gradient(135deg, rgba(244, 162, 97, 0.06) 0%, transparent 100%);
    border-color: var(--color-warning);
}

.verdict-card.not-recommended {
    background: linear-gradient(135deg, rgba(231, 111, 81, 0.06) 0%, transparent 100%);
    border-color: var(--color-danger);
}

/* Score Grid */
.score-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-5);
    margin-bottom: var(--space-8);
}

@media (min-width: 480px) {
    .score-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.score-item {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    text-align: center;
}

.score-value {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-2);
}

.score-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: var(--font-weight-semibold);
}

.score-good {
    color: var(--color-success);
}

.score-warning {
    color: var(--color-warning);
}

.score-bad {
    color: var(--color-danger);
}

/* Ingredient Cards */
.ingredients-section {
    margin-top: var(--space-10);
}

.section-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.section-title {
    font-family: var(--font-display);
    font-size: var(--font-size-xl);
    font-weight: var(--font-weight-semibold);
}

.section-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
}

.ingredient-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.ingredient-card {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    overflow: hidden;
    transition: all var(--transition-base);
}

.ingredient-card:hover {
    border-color: var(--color-terracotta-light);
    transform: translateX(4px);
    box-shadow: var(--shadow-sm);
}

.ingredient-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: var(--space-5);
    cursor: pointer;
}

.ingredient-name {
    font-weight: var(--font-weight-semibold);
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.ingredient-badge {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    letter-spacing: 0.03em;
}

.badge-safe {
    background: var(--color-success-bg);
    color: var(--color-sage-dark);
}

.badge-caution {
    background: var(--color-warning-bg);
    color: #B8651B;
}

.badge-avoid {
    background: var(--color-danger-bg);
    color: var(--color-terracotta-dark);
}

.ingredient-toggle {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-2);
    font-size: var(--font-size-lg);
    transition: all var(--transition-base);
    border-radius: var(--radius-md);
    min-height: 44px;
    min-width: 44px;
}

.ingredient-toggle:hover {
    background: var(--color-surface);
    color: var(--color-terracotta);
}

.ingredient-card.expanded .ingredient-toggle {
    transform: rotate(180deg);
}

.ingredient-details {
    max-height: 0;
    overflow: hidden;
    padding: 0 var(--space-5);
    border-top: 1px solid transparent;
    transition: all var(--transition-base);
    opacity: 0;
}

.ingredient-card.expanded .ingredient-details {
    max-height: 600px;
    padding: var(--space-5);
    border-top-color: var(--color-border-light);
    opacity: 1;
}

.ingredient-description {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--color-cream);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ================================
   History Section
   ================================ */

.history-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.history-item {
    display: flex;
    align-items: center;
    gap: var(--space-5);
    padding: var(--space-5);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
    position: relative;
}

.history-item:hover {
    border-color: var(--color-terracotta-light);
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.history-info {
    flex: 1;
}

.history-name {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-1);
    color: var(--color-heading);
}

.history-date {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.empty-state {
    text-align: center;
    padding: var(--space-16) var(--space-4);
}

.empty-state h3 {
    font-size: var(--font-size-2xl);
    margin: var(--space-6) 0 var(--space-3);
}

.empty-state p {
    color: var(--color-text-muted);
    margin-bottom: var(--space-8);
    font-size: var(--font-size-lg);
}

/* ================================
   Loading States
   ================================ */

.loading-panel {
    text-align: center;
    padding: var(--space-16);
}

.loader {
    width: 56px;
    height: 56px;
    border: 3px solid var(--color-border-light);
    border-top-color: var(--color-terracotta);
    border-radius: 50%;
    margin: 0 auto var(--space-5);
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* ================================
   Toast Notifications
   ================================ */

.toast {
    position: fixed;
    bottom: 100px;
    left: 50%;
    transform: translateX(-50%) translateY(20px);
    background: var(--color-heading);
    color: white;
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-medium);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-toast);
    box-shadow: var(--shadow-lg);
}

.toast.show {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* ================================
   Modals
   ================================ */

.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(61, 53, 48, 0.4);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    padding: var(--space-4);
    animation: fadeIn var(--transition-base);
}

.modal-overlay.hidden {
    display: none;
}

.modal-content {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-10) var(--space-6);
    max-width: 440px;
    width: 100%;
    text-align: center;
    animation: fadeInUp var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: var(--space-5);
}

.modal-title {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-3);
    color: var(--color-heading);
}

.modal-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    line-height: 1.7;
}

.modal-actions {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.modal-actions .btn {
    width: 100%;
}

.modal-skip {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--space-3);
    transition: color var(--transition-fast);
}

.modal-skip:hover {
    color: var(--color-text);
}

/* ================================
   Utility Classes
   ================================ */

.skip-link {
    position: absolute;
    top: -100px;
    left: 0;
    background: var(--color-terracotta);
    color: white;
    padding: var(--space-3) var(--space-6);
    z-index: 10000;
    text-decoration: none;
    font-weight: var(--font-weight-semibold);
    border-radius: 0 0 var(--radius-lg) 0;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 0;
    outline: none;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.hidden {
    display: none !important;
}

/* ================================
   Accessibility
   ================================ */

*:focus-visible {
    outline: 2px solid var(--color-terracotta);
    outline-offset: 3px;
}

*:focus:not(:focus-visible) {
    outline: none;
}

@media (prefers-reduced-motion: reduce) {

    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
}

/* ================================
   Validation & Feedback
   ================================ */

.validation-indicator {
    font-size: var(--font-size-sm);
    margin-top: var(--space-2);
    display: flex;
    align-items: center;
    gap: var(--space-2);
    color: var(--color-text-secondary);
}

.validation-indicator.valid {
    color: var(--color-success);
}

.validation-indicator.invalid {
    color: var(--color-warning);
}

.char-count {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
}

.char-count.valid {
    color: var(--color-success);
}

/* ================================
   History Specific
   ================================ */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.btn-text {
    background: none;
    border: none;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    border-radius: var(--radius-md);
}

.btn-text.text-danger {
    color: var(--color-danger);
}

.btn-text.text-danger:hover {
    background: var(--color-danger-bg);
}

.delete-history-btn {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    cursor: pointer;
    padding: var(--space-2);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-base);
}

.delete-history-btn:hover {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

/* ================================
   Onboarding
   ================================ */

.onboarding-overlay {
    position: fixed;
    inset: 0;
    background: var(--color-bg);
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fadeIn var(--transition-base);
}

.onboarding-overlay.hidden {
    display: none;
}

.onboarding-container {
    max-width: 480px;
    width: 100%;
    text-align: center;
}

.onboarding-slide {
    padding: var(--space-10) var(--space-6);
}

.onboarding-slide-icon {
    font-size: 5rem;
    margin-bottom: var(--space-6);
    animation: gentleFloat 3s ease-in-out infinite;
}

.onboarding-slide-title {
    font-family: var(--font-display);
    font-size: var(--font-size-3xl);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-4);
    color: var(--color-heading);
}

.onboarding-slide-text {
    font-size: var(--font-size-lg);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

.onboarding-skip {
    position: absolute;
    top: var(--space-4);
    right: var(--space-4);
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    cursor: pointer;
    padding: var(--space-2) var(--space-3);
    transition: color var(--transition-base);
    border-radius: var(--radius-md);
}

.onboarding-skip:hover {
    color: var(--color-text);
    background: var(--color-surface);
}

.onboarding-carousel {
    position: relative;
    min-height: 320px;
    margin-bottom: var(--space-8);
}

.onboarding-slide {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-10) var(--space-6);
    background: var(--color-bg);
    opacity: 0;
    transform: translateX(40px);
    transition: all var(--transition-slow);
    pointer-events: none;
}

.onboarding-slide.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

.onboarding-controls {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-5);
}

.onboarding-dots {
    display: flex;
    gap: var(--space-2);
}

.onboarding-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    background: var(--color-light-gray);
    border: 2px solid var(--color-border);
    cursor: pointer;
    transition: all var(--transition-base);
}

.onboarding-dot.active {
    background: var(--color-terracotta);
    border-color: var(--color-terracotta);
    transform: scale(1.2);
}

.onboarding-dot:hover {
    border-color: var(--color-terracotta-light);
}

.onboarding-next {
    min-width: 200px;
}

/* ================================
   Tutorial Overlay
   ================================ */

.tutorial-overlay {
    position: fixed;
    inset: 0;
    background: rgba(61, 53, 48, 0.85);
    backdrop-filter: blur(4px);
    z-index: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-4);
    animation: fadeIn var(--transition-base);
}

.tutorial-overlay.hidden {
    opacity: 0;
    pointer-events: none;
}

.tutorial-content {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-2xl);
    padding: var(--space-10) var(--space-6);
    text-align: center;
    max-width: 360px;
    animation: fadeInUp var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.tutorial-icon {
    font-size: 3.5rem;
    margin-bottom: var(--space-5);
}

.tutorial-text {
    color: var(--color-text-secondary);
    margin-bottom: var(--space-8);
    line-height: 1.7;
}

.tutorial-dismiss {
    width: 100%;
    margin-bottom: var(--space-4);
}

.tutorial-checkbox {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    cursor: pointer;
}

.tutorial-checkbox input {
    cursor: pointer;
    accent-color: var(--color-terracotta);
}

/* ================================
   Confetti Animation
   ================================ */

.confetti-container {
    position: fixed;
    inset: 0;
    pointer-events: none;
    z-index: 9999;
    overflow: hidden;
}

.confetti-particle {
    position: absolute;
    width: 10px;
    height: 10px;
    top: -20px;
    border-radius: 2px;
    animation: confettiFall 3s ease-out forwards;
}

@keyframes confettiFall {
    0% {
        transform: translateY(0) rotate(0deg);
        opacity: 1;
    }

    100% {
        transform: translateY(100vh) rotate(720deg);
        opacity: 0;
    }
}

/* ================================
   PWA Install Banner
   ================================ */

.install-banner {
    position: fixed;
    bottom: 90px;
    left: var(--space-4);
    right: var(--space-4);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-terracotta-light);
    border-radius: var(--radius-xl);
    padding: var(--space-5);
    z-index: 400;
    transform: translateY(200%);
    opacity: 0;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-lg);
}

.install-banner.visible {
    transform: translateY(0);
    opacity: 1;
}

.install-banner-content {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
}

.install-banner-text {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.install-banner-text strong {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-heading);
}

.install-banner-text span {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.install-banner-actions {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.btn-small {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
}

.install-dismiss {
    background: transparent;
    border: none;
    color: var(--color-text-muted);
    font-size: var(--font-size-lg);
    cursor: pointer;
    padding: var(--space-2);
    line-height: 1;
    border-radius: var(--radius-md);
    transition: all var(--transition-base);
}

.install-dismiss:hover {
    color: var(--color-text);
    background: var(--color-surface);
}

@media (min-width: 768px) {
    .install-banner {
        left: 50%;
        right: auto;
        transform: translateX(-50%) translateY(200%);
        max-width: 440px;
        bottom: var(--space-8);
    }

    .install-banner.visible {
        transform: translateX(-50%) translateY(0);
    }
}

/* ================================
   Offline Banner
   ================================ */

.offline-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    background: var(--color-warning);
    color: #000;
    text-align: center;
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    z-index: 1000;
    transform: translateY(-100%);
    transition: transform var(--transition-base);
}

.offline-banner.visible {
    transform: translateY(0);
}

/* ================================
   Tooltips for Technical Terms
   ================================ */

.term-tooltip {
    position: relative;
    border-bottom: 1px dotted var(--color-terracotta);
    cursor: help;
    color: var(--color-terracotta);
}

.term-tooltip::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 12px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--color-heading);
    color: white;
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-lg);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-normal);
    line-height: 1.5;
    white-space: normal;
    width: max-content;
    max-width: 280px;
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-toast);
    pointer-events: none;
}

.term-tooltip::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-heading);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
    z-index: var(--z-toast);
}

.term-tooltip:hover::after,
.term-tooltip:hover::before,
.term-tooltip:focus::after,
.term-tooltip:focus::before,
.term-tooltip.active::after,
.term-tooltip.active::before {
    opacity: 1;
    visibility: visible;
}

@media (max-width: 480px) {
    .term-tooltip::after {
        bottom: auto;
        top: calc(100% + 12px);
        left: 0;
        transform: none;
        max-width: 90vw;
    }

    .term-tooltip::before {
        bottom: auto;
        top: calc(100% + 6px);
        border-top-color: transparent;
        border-bottom-color: var(--color-heading);
    }
}

/* ================================
   Input Validation & Hints
   ================================ */

.input-hint {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-2);
    line-height: 1.5;
}

.input-meta {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: var(--space-2);
}

.char-count.warning {
    color: var(--color-warning);
}

/* ================================
   Ingredients Preview
   ================================ */

.ingredients-preview {
    background: var(--color-cream);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-top: var(--space-4);
    max-height: 180px;
    overflow-y: auto;
}

.ingredients-preview.hidden {
    display: none;
}

.ingredients-preview-title {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: var(--font-weight-semibold);
}

.ingredients-preview-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.ingredient-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    font-weight: var(--font-weight-medium);
}

.ingredient-tag.known {
    background: var(--color-success-bg);
    color: var(--color-sage-dark);
    border-color: var(--color-sage-light);
}

.ingredient-tag.unknown {
    background: var(--color-light-gray);
    color: var(--color-text-muted);
    border-color: var(--color-border);
}

/* ================================
   OCR Section
   ================================ */

.ocr-section {
    margin-bottom: var(--space-5);
    text-align: center;
}

#ocr-status {
    margin-top: var(--space-3);
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    min-height: 1.5em;
}

/* ================================
   History Page Enhancements
   ================================ */

.history-container {
    max-width: 720px;
    margin: 0 auto;
}

.history-icon {
    font-size: 2rem;
}

.history-verdict {
    font-size: 1.5rem;
}

.history-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-1);
}

.history-header h4 {
    font-family: var(--font-body);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-semibold);
    color: var(--color-heading);
    margin: 0;
}

.history-meta {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
}

.match-badge {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-3);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    border-radius: var(--radius-full);
    letter-spacing: 0.03em;
}

.match-badge.high {
    background: var(--color-success-bg);
    color: var(--color-sage-dark);
}

.match-badge.medium {
    background: var(--color-warning-bg);
    color: #B8651B;
}

.match-badge.low {
    background: var(--color-danger-bg);
    color: var(--color-terracotta-dark);
}

/* ================================
   Results Page Detail Rows
   ================================ */

.detail-row {
    display: flex;
    justify-content: space-between;
    padding: var(--space-3) 0;
    font-size: var(--font-size-sm);
    border-bottom: 1px solid var(--color-border-light);
}

.detail-row:last-child {
    border-bottom: none;
}

.detail-label {
    color: var(--color-text-muted);
    font-weight: var(--font-weight-medium);
}

.detail-value {
    font-weight: var(--font-weight-semibold);
    color: var(--color-text);
}

.concern-issues {
    margin-top: var(--space-4);
}

.issue-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3);
    margin-bottom: var(--space-2);
    background: var(--color-cream);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-warning);
}

.issue-item.high {
    border-left-color: var(--color-danger);
    background: var(--color-danger-bg);
}

.issue-item.medium {
    border-left-color: var(--color-warning);
    background: var(--color-warning-bg);
}

.issue-icon {
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.benefit-list {
    margin-top: var(--space-4);
}

.benefit-item {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-3);
    margin-bottom: var(--space-2);
    background: var(--color-success-bg);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-success);
}

.benefit-icon {
    color: var(--color-success);
    font-size: var(--font-size-lg);
    flex-shrink: 0;
}

.unknown-list {
    margin-top: var(--space-4);
    padding: var(--space-4);
    background: var(--color-light-gray);
    border-radius: var(--radius-md);
}

.result-actions {
    display: flex;
    gap: var(--space-3);
    margin-top: var(--space-8);
    justify-content: center;
}

/* ================================
   Toast Variants
   ================================ */

.toast-error {
    background: var(--color-danger) !important;
    color: white;
}

.toast-info {
    background: var(--color-terracotta) !important;
    color: white;
}

/* ================================
   Utility Classes
   ================================ */

.text-muted {
    color: var(--color-text-muted);
}

.mt-4 {
    margin-top: var(--space-4);
}

.mt-8 {
    margin-top: var(--space-8);
}

.mb-4 {
    margin-bottom: var(--space-4);
}

.mb-8 {
    margin-bottom: var(--space-8);
}

.text-center {
    text-align: center;
}

.text-success {
    color: var(--color-success);
}

.text-warning {
    color: var(--color-warning);
}

.text-danger {
    color: var(--color-danger);
}

/* ================================
   Phase 5: Comparison Styles
   ================================ */
.compare-container {
    padding: var(--space-4);
    max-width: 800px;
    margin: 0 auto;
}

.compare-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
}

.compare-products {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.compare-product {
    flex: 1;
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    text-align: center;
    border: 2px solid var(--color-border);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.compare-product:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.compare-product:focus-visible {
    outline: 2px solid var(--color-terracotta);
    outline-offset: 4px;
}

.compare-product.current {
    border-color: var(--color-terracotta);
}

.compare-product.target {
    border-color: var(--color-text-muted);
}

.compare-label {
    display: inline-block;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
}

.compare-vs {
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    color: var(--color-text-muted);
}

.compare-score {
    font-family: var(--font-display);
    font-size: var(--font-size-2xl);
    font-weight: var(--font-weight-bold);
    margin-top: var(--space-4);
}

.compare-section {
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-6);
    box-shadow: var(--shadow-sm);
}

.compare-scores {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.compare-score-row {
    display: grid;
    grid-template-columns: 1fr auto auto auto;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-3);
    background: var(--color-bg);
    border-radius: var(--radius-lg);
}

.compare-score-label {
    font-weight: var(--font-weight-medium);
}

.compare-score-value {
    font-family: var(--font-display);
    font-weight: var(--font-weight-semibold);
    min-width: 50px;
    text-align: center;
}

.compare-score-indicator {
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: var(--font-weight-bold);
}

.compare-score-indicator.better {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.compare-score-indicator.worse {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

.compare-score-indicator.neutral {
    background: var(--color-light-gray);
    color: var(--color-warm-gray);
}

.compare-ingredients {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-4);
}

.compare-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.compare-tag:hover {
    transform: scale(1.05);
    opacity: 0.9;
}

.compare-ingredients.better .compare-tag {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.compare-ingredients.worse .compare-tag {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

.compare-ingredients.neutral .compare-tag {
    background: var(--color-border);
    color: var(--color-text-secondary);
}

.compare-history-list {
    max-height: 300px;
    overflow-y: auto;
    margin: var(--space-4) 0;
}

.compare-history-item {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: background var(--transition-fast);
}

.compare-history-item:hover {
    background: var(--color-bg-secondary);
}

.compare-history-item:focus-visible {
    outline: 2px solid var(--color-terracotta);
    outline-offset: 2px;
}

/* ================================
   Phase 5.4: Suggestions Styles
   ================================ */
.suggestions-section {
    margin: var(--space-6) 0;
}

.suggestions-list {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.suggestion-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-xl);
    border-left: 4px solid var(--color-text-muted);
    box-shadow: var(--shadow-sm);
    transition: all var(--transition-base);
}

.suggestion-card:hover {
    transform: translateX(4px);
    box-shadow: var(--shadow-md);
}

.suggestion-card:focus-visible {
    outline: 2px solid var(--color-terracotta);
    outline-offset: 4px;
}

.suggestion-card.high {
    border-left-color: var(--color-warning);
    background: var(--color-warning-bg);
}

.suggestion-card.medium {
    border-left-color: var(--color-terracotta);
}

.suggestion-card.low {
    border-left-color: var(--color-success);
}

.suggestion-icon {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.suggestion-content {
    flex: 1;
}

.suggestion-title {
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-1);
}

.suggestion-message {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ================================
   Phase 5.5: Advanced Tooltips
   ================================ */
.learn-more-link {
    display: inline-flex;
    align-items: center;
    gap: var(--space-1);
    color: var(--color-terracotta);
    font-size: var(--font-size-sm);
    text-decoration: none;
    margin-top: var(--space-2);
    transition: opacity var(--transition-fast);
}

.learn-more-link:hover {
    opacity: 0.8;
}

.learn-more-link:focus-visible {
    outline: 2px solid var(--color-terracotta);
    outline-offset: 2px;
    border-radius: var(--radius-sm);
}

.related-ingredients {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border);
}

.related-ingredients-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--space-2);
}

.related-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
}

.related-tag {
    display: inline-block;
    padding: var(--space-1) var(--space-2);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

/* ================================
   Phase 6.4: RTL Support
   ================================ */
[dir="rtl"] .nav-brand {
    flex-direction: row-reverse;
}

[dir="rtl"] .result-actions {
    flex-direction: row-reverse;
}

[dir="rtl"] .suggestion-card {
    border-left: none;
    border-right: 4px solid var(--color-text-muted);
}

[dir="rtl"] .suggestion-card.high {
    border-right-color: var(--color-warning);
}

[dir="rtl"] .suggestion-card.medium {
    border-right-color: var(--color-terracotta);
}

[dir="rtl"] .suggestion-card.low {
    border-right-color: var(--color-success);
}

/* ================================
   v1.5 Trust Upgrade: Signals Grid
   ================================ */
.signals-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

@media (min-width: 480px) {
    .signals-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.signal-item {
    background: var(--color-bg-elevated);
    border: 1.5px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    padding: var(--space-5) var(--space-4);
    text-align: center;
    transition: all var(--transition-base);
}

.signal-item:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-sm);
}

.signal-value {
    font-family: var(--font-display);
    font-size: var(--font-size-lg);
    font-weight: var(--font-weight-bold);
    margin-bottom: var(--space-2);
}

.signal-label {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: var(--font-weight-semibold);
    margin-bottom: var(--space-2);
}

.signal-explanation {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: 1.4;
}

.signal-good {
    border-color: var(--color-sage-light);
    background: linear-gradient(135deg, rgba(129, 178, 154, 0.06) 0%, transparent 100%);
}

.signal-good .signal-value {
    color: var(--color-success);
}

.signal-neutral {
    border-color: var(--color-warning);
    background: linear-gradient(135deg, rgba(244, 162, 97, 0.04) 0%, transparent 100%);
}

.signal-neutral .signal-value {
    color: var(--color-warning);
}

.signal-warning {
    border-color: var(--color-danger);
    background: linear-gradient(135deg, rgba(231, 111, 81, 0.04) 0%, transparent 100%);
}

.signal-warning .signal-value {
    color: var(--color-danger);
}

/* Signal text in ingredient details */
.signal-text {
    font-weight: var(--font-weight-semibold);
}

.signal-text.signal-low {
    color: var(--color-success);
}

.signal-text.signal-moderate {
    color: var(--color-warning);
}

.signal-text.signal-higher {
    color: var(--color-danger);
}

/* ================================
   v1.5 Trust Upgrade: Confidence Badges
   ================================ */
.confidence-badges {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-6);
    flex-wrap: wrap;
}

.confidence-badge {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-4);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-full);
    font-size: var(--font-size-sm);
}

.confidence-label {
    color: var(--color-text-muted);
}

.confidence-value {
    font-weight: var(--font-weight-semibold);
}

.confidence-high .confidence-value {
    color: var(--color-success);
}

.confidence-medium .confidence-value {
    color: var(--color-warning);
}

.confidence-low .confidence-value {
    color: var(--color-danger);
}

.info-tooltip-btn {
    background: none;
    border: none;
    padding: 0;
    cursor: help;
    font-size: var(--font-size-sm);
    opacity: 0.6;
    transition: opacity var(--transition-fast);
}

.info-tooltip-btn:hover {
    opacity: 1;
}

/* ================================
   v1.5 Trust Upgrade: Pregnancy Section
   ================================ */
.pregnancy-section {
    background: linear-gradient(135deg, rgba(244, 162, 97, 0.06) 0%, rgba(255, 250, 245, 0.8) 100%);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-bottom: var(--space-8);
}

.pregnancy-section .section-title {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--font-size-lg);
}

.pregnancy-section .section-icon {
    font-size: 1.25em;
}

.pregnancy-flags {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    margin: var(--space-4) 0;
}

.pregnancy-flag {
    padding: var(--space-4);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-warning);
}

.pregnancy-flag.known {
    border-left-color: var(--color-danger);
}

.flag-ingredient {
    font-weight: var(--font-weight-semibold);
    display: block;
    margin-bottom: var(--space-1);
}

.flag-level {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.flag-note {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    margin-top: var(--space-2);
    line-height: 1.5;
}

.pregnancy-safe {
    color: var(--color-text-secondary);
    font-size: var(--font-size-sm);
    margin: var(--space-4) 0;
}

.pregnancy-disclaimer {
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    padding: var(--space-4);
    background: rgba(0, 0, 0, 0.02);
    border-radius: var(--radius-md);
    line-height: 1.5;
}

/* ================================
   v1.5 Trust Upgrade: Outcome Logging
   ================================ */
.outcome-section {
    text-align: center;
    margin: var(--space-8) 0;
    padding-top: var(--space-6);
    border-top: 1px solid var(--color-border-light);
}

.btn-outline {
    background: transparent;
    border: 1.5px solid var(--color-terracotta);
    color: var(--color-terracotta);
    padding: var(--space-4) var(--space-6);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-semibold);
    cursor: pointer;
    transition: all var(--transition-base);
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
}

.btn-outline:hover {
    background: var(--color-terracotta);
    color: white;
}

.outcome-modal-content {
    max-width: 400px;
}

.modal-subtitle {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: var(--space-6);
}

.outcome-options {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.outcome-option {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-5);
    background: var(--color-bg);
    border: 1.5px solid var(--color-border-light);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-base);
}

.outcome-option:hover {
    border-color: var(--color-terracotta-light);
    background: var(--color-cream);
}

.outcome-option.selected {
    border-color: var(--color-terracotta);
    background: rgba(224, 122, 95, 0.08);
    border-width: 2px;
}

.outcome-icon {
    font-size: 2rem;
}

.outcome-label {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-medium);
    color: var(--color-text);
}

.outcome-note-section {
    margin-top: var(--space-4);
}

.outcome-note-section label {
    display: block;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    margin-bottom: var(--space-2);
    text-align: left;
}

.outcome-note-section textarea {
    width: 100%;
    padding: var(--space-3);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    font-family: inherit;
    font-size: var(--font-size-sm);
    resize: vertical;
    min-height: 80px;
    margin-bottom: var(--space-4);
}

.outcome-note-section textarea:focus {
    outline: none;
    border-color: var(--color-terracotta);
    box-shadow: 0 0 0 3px rgba(224, 122, 95, 0.1);
}

/* Outcome badges in history */
.history-outcome {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin-top: var(--space-1);
}

.history-patterns {
    background: linear-gradient(135deg, rgba(129, 178, 154, 0.08) 0%, transparent 100%);
    border: 1px solid var(--color-sage-light);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-6);
}

.patterns-title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    color: var(--color-sage-dark);
    margin-bottom: var(--space-2);
}

.pattern-item {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.5;
}

/* ================================
   v1.5 Trust Upgrade: Compare Signals
   ================================ */
.compare-signals {
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
}

.compare-signal-row {
    display: grid;
    grid-template-columns: 1.5fr 1fr auto 1fr;
    align-items: center;
    gap: var(--space-3);
    padding: var(--space-3);
    background: var(--color-bg-elevated);
    border-radius: var(--radius-md);
}

.compare-signal-label {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
}

.compare-signal-value {
    font-weight: var(--font-weight-semibold);
    text-align: center;
    font-size: var(--font-size-sm);
}

.compare-signal-indicator {
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: var(--font-weight-bold);
    font-size: var(--font-size-lg);
}

.compare-signal-indicator.better {
    background: var(--color-success-bg);
    color: var(--color-success);
}

.compare-signal-indicator.worse {
    background: var(--color-danger-bg);
    color: var(--color-danger);
}

.compare-signal-indicator.neutral {
    background: var(--color-bg);
    color: var(--color-text-muted);
}

.compare-verdict {
    font-size: 2rem;
    margin-top: var(--space-3);
}

/* Updated compare product cards without score */
.compare-product .compare-score {
    display: none;
}

/* ================================
   v1.5 Trust Upgrade: Tooltips
   ================================ */
[data-tooltip] {
    position: relative;
}

[data-tooltip]:hover::after,
[data-tooltip]:focus::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: calc(100% + 8px);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--space-3) var(--space-4);
    background: var(--color-heading);
    color: white;
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-normal);
    border-radius: var(--radius-md);
    white-space: normal;
    width: max-content;
    max-width: 250px;
    z-index: var(--z-tooltip);
    box-shadow: var(--shadow-md);
    line-height: 1.4;
    text-transform: none;
    letter-spacing: normal;
}

[data-tooltip]:hover::before,
[data-tooltip]:focus::before {
    content: '';
    position: absolute;
    bottom: calc(100% + 2px);
    left: 50%;
    transform: translateX(-50%);
    border: 6px solid transparent;
    border-top-color: var(--color-heading);
    z-index: var(--z-tooltip);
}

/* ================================
   v1.5 Trust Upgrade: History Badges
   ================================ */
.history-verdict-icon {
    font-size: 1.5rem;
    min-width: 40px;
    text-align: center;
}

.history-badges {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.confidence-pill {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
    background: var(--color-bg);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border-light);
}

.confidence-pill.high {
    background: var(--color-success-bg);
    color: var(--color-sage-dark);
    border-color: var(--color-sage-light);
}

.confidence-pill.medium {
    background: var(--color-warning-bg);
    color: #B8651B;
    border-color: var(--color-warning);
}

.confidence-pill.low {
    background: var(--color-danger-bg);
    color: var(--color-terracotta-dark);
    border-color: var(--color-danger);
}

.outcome-pill {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-medium);
    border-radius: var(--radius-full);
    background: var(--color-cream);
    color: var(--color-text-secondary);
}

/* v1.5: Confidence Microcopy */
.confidence-microcopy {
    text-align: center;
    font-size: var(--font-size-sm);
    color: var(--color-text-muted);
    max-width: 400px;
    margin: 0 auto var(--space-6);
    line-height: 1.5;
}

/* ================================
   v1.6: Accuracy Nudge Banner
   ================================ */

.accuracy-nudge {
    background: linear-gradient(135deg, var(--color-cream) 0%, rgba(244, 162, 97, 0.08) 100%);
    border: 1px solid rgba(244, 162, 97, 0.2);
    border-radius: var(--radius-lg);
    padding: var(--space-5);
    margin-bottom: var(--space-6);
    transition: all var(--transition-base);
}

.nudge-content {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-4);
}

.nudge-icon {
    font-size: var(--font-size-xl);
    flex-shrink: 0;
}

.nudge-message {
    font-size: var(--font-size-sm);
    color: var(--color-text);
    line-height: 1.5;
    margin: 0;
}

.nudge-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    align-items: center;
}

.nudge-actions .btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-xs);
    min-height: 36px;
}

.nudge-dismiss {
    color: var(--color-text-muted);
    font-size: var(--font-size-xs);
    padding: var(--space-2);
}

.nudge-dismiss:hover {
    color: var(--color-text);
}

/* ================================
   v1.6: Unclassified Ingredients Section
   ================================ */

.unclassified-section {
    background: var(--color-cream);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-xl);
    padding: var(--space-6);
    margin-top: var(--space-8);
}

.unclassified-content {
    margin-top: var(--space-4);
}

.unclassified-body {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-4);
}

.unclassified-partial-note {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    background: var(--color-warning-bg);
    padding: var(--space-3) var(--space-4);
    border-radius: var(--radius-md);
    font-size: var(--font-size-sm);
    color: var(--color-warning);
    margin-bottom: var(--space-4);
}

.unclassified-partial-note .note-icon {
    flex-shrink: 0;
}

.unclassified-list {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-5);
}

.unclassified-chip {
    display: inline-block;
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
}

.unclassified-actions {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-3);
}

.unclassified-microcopy {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    margin: 0;
}

/* Button outline variant */
.btn-outline {
    background: transparent;
    border: 1.5px solid var(--color-border);
    color: var(--color-text);
}

.btn-outline:hover {
    background: var(--color-surface);
    border-color: var(--color-terracotta);
    color: var(--color-terracotta);
}

.btn-sm {
    padding: var(--space-2) var(--space-4);
    font-size: var(--font-size-sm);
    min-height: 36px;
}

/* ================================
   v1.6: Research Modal
   ================================ */

.research-modal-content {
    max-width: 480px;
    max-height: 80vh;
    overflow-y: auto;
}

.research-header {
    text-align: center;
    margin-bottom: var(--space-5);
}

.research-header .modal-title {
    margin-bottom: var(--space-2);
}

.research-header .modal-subtitle {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    padding: var(--space-2) var(--space-4);
    background: var(--color-warning-bg);
    border-radius: var(--radius-full);
    display: inline-block;
}

.research-disclaimer {
    display: flex;
    align-items: flex-start;
    gap: var(--space-3);
    background: var(--color-cream);
    padding: var(--space-4);
    border-radius: var(--radius-md);
    margin-bottom: var(--space-5);
}

.research-disclaimer .disclaimer-icon {
    flex-shrink: 0;
    font-size: var(--font-size-lg);
}

.research-disclaimer p {
    font-size: var(--font-size-xs);
    color: var(--color-text-secondary);
    line-height: 1.5;
    margin: 0;
}

.research-results {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    margin-bottom: var(--space-5);
}

.research-item {
    background: var(--color-bg-elevated);
    border: 1px solid var(--color-border-light);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    transition: all var(--transition-base);
}

.research-item.loaded {
    border-color: var(--color-border);
}

.research-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-3);
}

.research-ingredient-name {
    font-weight: var(--font-weight-semibold);
    color: var(--color-heading);
}

.research-loading {
    font-size: var(--font-size-xs);
    color: var(--color-text-muted);
    animation: shimmer 1.5s infinite;
    background: linear-gradient(90deg, var(--color-text-muted) 0%, var(--color-soft-gray) 50%, var(--color-text-muted) 100%);
    background-size: 200% 100%;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.research-summary {
    font-size: var(--font-size-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin: 0;
}

.research-sources {
    margin-top: var(--space-3);
}

.research-source-link {
    display: inline-block;
    font-size: var(--font-size-xs);
    color: var(--color-terracotta);
    text-decoration: none;
    margin-right: var(--space-3);
}

.research-source-link:hover {
    text-decoration: underline;
}

.research-confidence {
    display: inline-flex;
    align-items: center;
    padding: var(--space-1) var(--space-2);
    font-size: var(--font-size-xs);
    border-radius: var(--radius-full);
    font-weight: var(--font-weight-medium);
}

.research-confidence.confidence-high {
    background: var(--color-success-bg);
    color: var(--color-sage-dark);
}

.research-confidence.confidence-mixed {
    background: var(--color-warning-bg);
    color: var(--color-warning);
}

.research-confidence.confidence-limited {
    background: var(--color-cream);
    color: var(--color-text-muted);
}

.research-actions {
    text-align: center;
}