/* =====================================================
   Menu Guide Korea - Improved Responsive Design
   Modern, Professional, Korean Food Theme
   ===================================================== */

/* ===========================
   CSS Variables & Theme
   =========================== */
:root {
    /* Primary - Kimchi Red (Trust & Korean Identity) */
    --color-primary: #E53E3E;
    --color-primary-light: #FC8181;
    --color-primary-dark: #C53030;
    --color-primary-alpha: rgba(229, 62, 62, 0.1);

    /* Secondary - Doenjang Brown (Warmth & Comfort) */
    --color-secondary: #D97706;
    --color-secondary-light: #FBBF24;
    --color-secondary-dark: #B45309;

    /* Accent - Green Onion (Freshness) */
    --color-accent: #10B981;
    --color-accent-light: #34D399;

    /* Neutrals */
    --color-bg: #FFFFFF;
    --color-bg-secondary: #F9FAFB;
    --color-bg-tertiary: #F3F4F6;
    --color-text: #111827;
    --color-text-secondary: #6B7280;
    --color-text-muted: #9CA3AF;
    --color-border: #E5E7EB;
    --color-border-light: #F3F4F6;

    /* Semantic */
    --color-success: #10B981;
    --color-warning: #F59E0B;
    --color-error: #EF4444;
    --color-info: #3B82F6;

    /* Spice Levels */
    --spice-0: #10B981;  /* Green */
    --spice-1: #84CC16;  /* Lime */
    --spice-2: #EAB308;  /* Yellow */
    --spice-3: #F59E0B;  /* Amber */
    --spice-4: #F97316;  /* Orange */
    --spice-5: #EF4444;  /* Red */

    /* Typography */
    --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-korean: 'Noto Sans KR', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Font Sizes */
    --text-xs: 0.75rem;    /* 12px */
    --text-sm: 0.875rem;   /* 14px */
    --text-base: 1rem;     /* 16px */
    --text-lg: 1.125rem;   /* 18px */
    --text-xl: 1.25rem;    /* 20px */
    --text-2xl: 1.5rem;    /* 24px */
    --text-3xl: 1.875rem;  /* 30px */
    --text-4xl: 2.25rem;   /* 36px */
    --text-5xl: 3rem;      /* 48px */
    --text-6xl: 3.75rem;   /* 60px */

    /* Spacing */
    --space-1: 0.25rem;   /* 4px */
    --space-2: 0.5rem;    /* 8px */
    --space-3: 0.75rem;   /* 12px */
    --space-4: 1rem;      /* 16px */
    --space-5: 1.25rem;   /* 20px */
    --space-6: 1.5rem;    /* 24px */
    --space-8: 2rem;      /* 32px */
    --space-10: 2.5rem;   /* 40px */
    --space-12: 3rem;     /* 48px */
    --space-16: 4rem;     /* 64px */
    --space-20: 5rem;     /* 80px */
    --space-24: 6rem;     /* 96px */

    /* Shadows */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
    --shadow-2xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --shadow-primary: 0 10px 25px -5px rgba(229, 62, 62, 0.3);

    /* Border Radius */
    --radius-sm: 0.375rem;   /* 6px */
    --radius-md: 0.5rem;     /* 8px */
    --radius-lg: 0.75rem;    /* 12px */
    --radius-xl: 1rem;       /* 16px */
    --radius-2xl: 1.5rem;    /* 24px */
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 200ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 300ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Z-index (used values only) */
    --z-sticky: 20;
    --z-modal: 50;
}

/* ===========================
   Reset & Base Styles
   =========================== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

@media (prefers-reduced-motion: no-preference) {
    html {
        scroll-behavior: smooth;
    }
}

body {
    font-family: var(--font-primary);
    font-size: var(--text-base);
    line-height: 1.6;
    color: var(--color-text);
    background-color: var(--color-bg);
    overflow-x: hidden;
}

/* Korean Text */
.korean-text,
[lang="ko"] {
    font-family: var(--font-korean);
    font-weight: 500;
}

/* Utility Classes */
.hidden {
    display: none !important;
}

/* ===========================
   Container & Layout
   =========================== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding-left: var(--space-4);
    padding-right: var(--space-4);
}

@media (min-width: 640px) {
    .container {
        padding-left: var(--space-6);
        padding-right: var(--space-6);
    }
}

@media (min-width: 1024px) {
    .container {
        padding-left: var(--space-8);
        padding-right: var(--space-8);
    }
}

/* ===========================
   Loading Overlay
   =========================== */
.loading-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(8px);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    z-index: var(--z-modal);
    gap: var(--space-6);
}

.loading-overlay p {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    font-weight: 500;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 4px solid var(--color-border);
    border-top-color: var(--color-primary);
    border-radius: var(--radius-full);
    animation: spin 0.8s linear infinite;
}

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

/* ===========================
   Landing Section
   =========================== */
.landing-section {
    min-height: 100vh;
    padding-top: var(--space-8);
    padding-bottom: var(--space-20);
}

/* ===========================
   Header
   =========================== */
.header {
    text-align: center;
    margin-bottom: var(--space-12);
    animation: fadeInDown 0.6s ease-out;
}

.logo {
    font-size: var(--text-4xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-3);
    letter-spacing: -0.025em;
}

@media (min-width: 768px) {
    .logo {
        font-size: var(--text-5xl);
    }
}

.tagline {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    font-weight: 500;
}

@media (min-width: 768px) {
    .tagline {
        font-size: var(--text-xl);
    }
}

/* ===========================
   DB Stats Dashboard
   =========================== */
.db-dashboard {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-4);
    margin: var(--space-4) auto var(--space-6);
    padding: var(--space-3) var(--space-5);
    max-width: 560px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    animation: fadeInUp 0.5s ease-out 0.15s both;
}

.db-stat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2px;
    min-width: 0;
}

.db-stat-value {
    font-size: var(--text-lg);
    font-weight: 700;
    color: var(--color-text);
    letter-spacing: -0.02em;
    line-height: 1.2;
}

.db-stat-total .db-stat-value {
    color: var(--color-primary);
    font-size: var(--text-xl);
}

.db-stat-enriched .db-stat-value {
    color: var(--color-accent);
}

.db-stat-translated .db-stat-value {
    color: var(--color-info);
}

.db-stat-images .db-stat-value {
    color: var(--color-secondary);
}

.db-stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    font-weight: 500;
    white-space: nowrap;
}

.db-stat-divider {
    width: 1px;
    height: 28px;
    background: var(--color-border);
    flex-shrink: 0;
}

@media (max-width: 480px) {
    .db-dashboard {
        gap: var(--space-2);
        padding: var(--space-2) var(--space-3);
        margin: var(--space-3) auto var(--space-4);
    }

    .db-stat-value {
        font-size: var(--text-base);
    }

    .db-stat-total .db-stat-value {
        font-size: var(--text-lg);
    }

    .db-stat-label {
        font-size: 0.625rem;
    }

    .db-stat-divider {
        height: 22px;
    }
}

/* ===========================
   Search Box
   =========================== */
.search-box {
    margin-bottom: var(--space-8);
    animation: fadeInUp 0.6s ease-out 0.2s both;
}

.search-input-wrapper {
    position: relative;
    max-width: 600px;
    margin: 0 auto var(--space-3);
}

.menu-input {
    width: 100%;
    padding: var(--space-4) var(--space-16) var(--space-4) var(--space-5);
    font-size: var(--text-lg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-xl);
    background-color: var(--color-bg);
    color: var(--color-text);
    font-family: var(--font-korean);
    transition: all var(--transition-base);
    box-shadow: var(--shadow-sm);
}

.menu-input:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: var(--shadow-primary);
    transform: translateY(-2px);
}

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

.search-btn {
    position: absolute;
    right: var(--space-2);
    top: 50%;
    transform: translateY(-50%);
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-2xl);
    cursor: pointer;
    transition: all var(--transition-base);
    box-shadow: var(--shadow-md);
}

.search-btn:hover {
    transform: translateY(-50%) scale(1.05);
    box-shadow: var(--shadow-primary);
}

.search-btn:active {
    transform: translateY(-50%) scale(0.98);
}

.search-hint {
    text-align: center;
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    max-width: 600px;
    margin: 0 auto;
}

/* ===========================
   Photo Upload
   =========================== */
.photo-upload {
    text-align: center;
    margin-bottom: var(--space-6);
    animation: fadeInUp 0.6s ease-out 0.3s both;
}

.photo-btn {
    position: relative;
    padding: var(--space-4) var(--space-8);
    font-size: var(--text-base);
    font-weight: 600;
    border: 2px solid var(--color-primary);
    border-radius: var(--radius-xl);
    background: linear-gradient(135deg, var(--color-primary-alpha), rgba(229, 62, 62, 0.05));
    color: var(--color-primary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.photo-btn:hover {
    background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
    color: white;
    box-shadow: var(--shadow-primary);
    transform: translateY(-1px);
}

.photo-btn:active {
    transform: translateY(0);
}

.coming-soon {
    display: inline-block;
    margin-left: var(--space-2);
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 700;
    background: var(--color-warning);
    color: white;
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ===========================
   Language Selector
   =========================== */
.language-selector {
    display: flex;
    gap: var(--space-3);
    justify-content: center;
    margin-bottom: var(--space-12);
    animation: fadeInUp 0.6s ease-out 0.4s both;
}

.lang-btn {
    padding: var(--space-2) var(--space-4);
    font-size: var(--text-sm);
    font-weight: 600;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    background-color: var(--color-bg);
    color: var(--color-text-secondary);
    cursor: pointer;
    transition: all var(--transition-base);
}

.lang-btn:not(:disabled):hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-alpha);
    color: var(--color-primary);
}

.lang-btn.active {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: white;
    box-shadow: var(--shadow-md);
}

.lang-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

/* ===========================
   Popular Dishes
   =========================== */
.popular-dishes {
    margin-bottom: var(--space-16);
    animation: fadeInUp 0.6s ease-out 0.5s both;
}

.section-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    text-align: center;
    margin-bottom: var(--space-8);
    color: var(--color-text);
    letter-spacing: -0.025em;
}

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

.dish-tags {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    justify-content: center;
    max-width: 800px;
    margin: 0 auto;
}

.dish-tag {
    padding: var(--space-3) var(--space-5);
    font-size: var(--text-base);
    font-family: var(--font-korean);
    font-weight: 500;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-full);
    background-color: var(--color-bg);
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-base);
    white-space: nowrap;
}

.dish-tag:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary);
    color: white;
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.dish-tag:active {
    transform: translateY(0);
}

/* ===========================
   How It Works Section
   =========================== */
.how-it-works {
    margin-bottom: var(--space-20);
    padding: var(--space-12) 0;
    background: linear-gradient(135deg, var(--color-bg-secondary) 0%, var(--color-bg-tertiary) 100%);
    border-radius: var(--radius-2xl);
    animation: fadeInUp 0.6s ease-out 0.6s both;
}

.steps-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-8);
    max-width: 900px;
    margin: 0 auto;
}

@media (min-width: 768px) {
    .steps-container {
        grid-template-columns: 1fr auto 1fr auto 1fr;
        align-items: center;
    }
}

.step-card {
    background: var(--color-bg);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
    text-align: center;
    transition: all var(--transition-base);
}

.step-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

.step-number {
    width: 56px;
    height: 56px;
    margin: 0 auto var(--space-4);
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    font-size: var(--text-2xl);
    font-weight: 700;
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-primary);
}

.step-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.step-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

.step-arrow {
    font-size: var(--text-4xl);
    color: var(--color-primary);
    text-align: center;
    display: none;
}

@media (min-width: 768px) {
    .step-arrow {
        display: block;
    }
}

/* ===========================
   Features Section
   =========================== */
.features {
    margin-bottom: var(--space-20);
    animation: fadeInUp 0.6s ease-out 0.7s both;
}

.feature-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    max-width: 1000px;
    margin: 0 auto;
}

@media (min-width: 640px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (min-width: 1024px) {
    .feature-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

.feature-card {
    background: var(--color-bg);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-light);
    text-align: center;
    transition: all var(--transition-base);
}

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

.feature-icon {
    font-size: var(--text-5xl);
    margin-bottom: var(--space-4);
}

.feature-title {
    font-size: var(--text-lg);
    font-weight: 600;
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.feature-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
}

/* ===========================
   Demo Section
   =========================== */
.demo-section {
    margin-bottom: var(--space-20);
    padding: var(--space-12);
    background: linear-gradient(135deg, var(--color-primary-alpha) 0%, var(--color-bg-secondary) 100%);
    border-radius: var(--radius-2xl);
    animation: fadeInUp 0.6s ease-out 0.8s both;
}

.demo-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
    max-width: 900px;
    margin: 0 auto var(--space-6);
}

@media (min-width: 768px) {
    .demo-container {
        grid-template-columns: 1fr auto 1fr;
        align-items: center;
    }
}

.demo-input-box,
.demo-output-box {
    background: var(--color-bg);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-md);
}

.demo-label {
    display: block;
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-3);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.demo-value {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-text);
}

.demo-arrow-large {
    font-size: var(--text-5xl);
    color: var(--color-primary);
    text-align: center;
    display: none;
}

@media (min-width: 768px) {
    .demo-arrow-large {
        display: block;
    }
}

.demo-result-card {
    padding: var(--space-6);
    background: var(--color-bg-secondary);
    border-radius: var(--radius-lg);
}

.demo-dish-name {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.demo-dish-detail {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    margin-bottom: var(--space-4);
}

.demo-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
}

.demo-stat {
    padding: var(--space-2) var(--space-3);
    background: var(--color-bg);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text);
}

.demo-cta {
    text-align: center;
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-primary);
}

/* ===========================
   FAQ Section
   =========================== */
.faq-section {
    margin-bottom: var(--space-20);
    animation: fadeInUp 0.6s ease-out 0.9s both;
}

.faq-container {
    max-width: 800px;
    margin: 0 auto;
}

.faq-item {
    background: var(--color-bg);
    padding: var(--space-6);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-sm);
    border: 1px solid var(--color-border-light);
    margin-bottom: var(--space-4);
    transition: all var(--transition-base);
}

.faq-item:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--color-primary-light);
}

.faq-question {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-text);
    margin-bottom: var(--space-3);
}

.faq-answer {
    font-size: var(--text-base);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

/* ===========================
   About Section
   =========================== */
.about-section {
    margin-bottom: var(--space-20);
    text-align: center;
    animation: fadeInUp 0.6s ease-out 1s both;
}

.about-description {
    font-size: var(--text-lg);
    color: var(--color-text-secondary);
    line-height: 1.8;
    max-width: 700px;
    margin: 0 auto var(--space-12);
}

.about-stats {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: var(--space-6);
    max-width: 700px;
    margin: 0 auto;
}

.stat-box {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-primary);
    color: white;
    transition: all var(--transition-base);
}

.stat-box:hover {
    transform: translateY(-4px) scale(1.05);
    box-shadow: var(--shadow-2xl);
}

.stat-value {
    font-size: var(--text-4xl);
    font-weight: 700;
    margin-bottom: var(--space-2);
}

.stat-label {
    font-size: var(--text-sm);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    opacity: 0.9;
}

/* ===========================
   Footer / Disclaimer
   =========================== */
.app-disclaimer {
    background: var(--color-bg-secondary);
    padding: var(--space-8);
    border-radius: var(--radius-xl);
    border-top: 4px solid var(--color-primary);
    margin-top: var(--space-20);
    animation: fadeInUp 0.6s ease-out 1.1s both;
}

.app-disclaimer p {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.7;
    margin-bottom: var(--space-3);
}

.app-disclaimer p:last-child {
    margin-bottom: 0;
}

.app-disclaimer a {
    color: var(--color-primary);
    text-decoration: underline;
    transition: color var(--transition-base);
}

.app-disclaimer a:hover {
    color: var(--color-primary-dark);
}

/* ===========================
   Results Section
   =========================== */
.results-section {
    padding: var(--space-8) 0;
}

.results-header {
    display: flex;
    align-items: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.back-btn {
    padding: var(--space-3) var(--space-5);
    background: var(--color-bg);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: 600;
    color: var(--color-text);
    cursor: pointer;
    transition: all var(--transition-base);
}

.back-btn:hover {
    border-color: var(--color-primary);
    background-color: var(--color-primary-alpha);
    color: var(--color-primary);
    transform: translateX(-2px);
}

.results-title {
    font-size: var(--text-3xl);
    font-weight: 700;
    color: var(--color-text);
}

.results-container {
    display: grid;
    grid-template-columns: 1fr;
    gap: var(--space-6);
}

/* ===========================
   Animations
   =========================== */
@keyframes fadeInDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===========================
   Photo Scan Modal
   =========================== */
.photo-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: var(--space-4);
}

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

.photo-modal-content {
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    max-width: 600px;
    width: 100%;
    max-height: 90vh;
    overflow: auto;
    position: relative;
    box-shadow: var(--shadow-2xl);
}

.photo-modal-close {
    position: absolute;
    top: var(--space-3);
    right: var(--space-3);
    background: rgba(0, 0, 0, 0.5);
    color: white;
    border: none;
    border-radius: var(--radius-full);
    width: 36px;
    height: 36px;
    font-size: var(--text-xl);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 1;
    transition: background var(--transition-fast);
}

.photo-modal-close:hover {
    background: rgba(0, 0, 0, 0.8);
}

.photo-preview-img {
    width: 100%;
    max-height: 60vh;
    object-fit: contain;
    border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    background: var(--color-bg-tertiary);
}

.photo-modal-actions {
    display: flex;
    gap: var(--space-3);
    padding: var(--space-4);
    justify-content: center;
}

.scan-btn {
    padding: var(--space-3) var(--space-6);
    background: var(--color-primary);
    color: white;
    border: none;
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.scan-btn:hover {
    background: var(--color-primary-dark);
    box-shadow: var(--shadow-primary);
}

.retake-btn {
    padding: var(--space-3) var(--space-6);
    background: var(--color-bg-tertiary);
    color: var(--color-text-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    font-size: var(--text-base);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-base);
}

.retake-btn:hover {
    background: var(--color-bg-secondary);
    border-color: var(--color-text-secondary);
}

/* ===========================
   Scan Results
   =========================== */
.scan-results-section {
    padding: var(--space-6) var(--space-4);
    max-width: 800px;
    margin: 0 auto;
}

.scan-results-section.hidden {
    display: none;
}

.scan-summary {
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-bottom: var(--space-6);
}

.scan-summary-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.scan-stat {
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--color-text-secondary);
    padding: var(--space-1) var(--space-3);
    background: var(--color-bg);
    border-radius: var(--radius-full);
    border: 1px solid var(--color-border-light);
}

.scan-stat-matched {
    color: var(--color-success);
    border-color: var(--color-success);
    background: rgba(16, 185, 129, 0.05);
}

.scan-stat-ai {
    color: var(--color-warning);
    border-color: var(--color-warning);
    background: rgba(245, 158, 11, 0.05);
}

.scan-summary-meta {
    display: flex;
    gap: var(--space-4);
    font-size: var(--text-xs);
    color: var(--color-text-muted);
}

/* Scan Menu Card Extras */
.scan-menu-card {
    position: relative;
}

.scan-card-header {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    gap: var(--space-3);
    margin-bottom: var(--space-2);
}

.scan-status-badge {
    display: inline-block;
    padding: var(--space-1) var(--space-3);
    font-size: var(--text-xs);
    font-weight: 600;
    border-radius: var(--radius-full);
    white-space: nowrap;
    flex-shrink: 0;
}

.badge-matched {
    background: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-ai {
    background: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

.badge-unmatched {
    background: rgba(107, 114, 128, 0.1);
    color: var(--color-text-muted);
    border: 1px solid rgba(107, 114, 128, 0.3);
}

.scan-price {
    display: inline-block;
    font-size: var(--text-sm);
    color: var(--color-primary);
    font-weight: 600;
    margin-top: var(--space-1);
}

.scan-modifiers {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin: var(--space-2) 0;
}

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

.scan-ocr-correction {
    color: var(--color-primary);
    font-size: 0.75rem;
    margin-top: 2px;
    opacity: 0.8;
}

.scan-no-match {
    color: var(--color-text-muted);
    font-size: var(--text-sm);
    font-style: italic;
}

.scan-image-container {
    max-height: 120px;
    overflow: hidden;
    border-radius: var(--radius-md);
    margin-bottom: var(--space-2);
}

.scan-image-container .menu-image {
    max-height: 120px;
    object-fit: cover;
}

.scan-card-clickable {
    cursor: pointer;
}

.scan-card-clickable:hover {
    box-shadow: var(--shadow-lg);
    transform: translateY(-2px);
    transition: all var(--transition-base);
}

.scan-card-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.scan-match-meta {
    font-size: var(--text-sm);
    color: var(--color-text-muted);
}

.scan-details-link {
    color: var(--color-primary);
    font-weight: 600;
    font-size: var(--text-sm);
}

.scan-match-correction {
    font-size: var(--text-xs);
    color: var(--color-warning, #e67e22);
    padding: var(--space-1) var(--space-3);
    background: rgba(230, 126, 34, 0.08);
    border-radius: var(--radius-sm);
    margin-bottom: var(--space-2);
}

/* ===========================
   Responsive Adjustments
   =========================== */
@media (max-width: 640px) {
    .stat-value {
        font-size: var(--text-3xl);
    }

    .demo-value {
        font-size: var(--text-2xl);
    }

    .photo-modal-content {
        max-width: 100%;
        margin: var(--space-2);
        max-height: 95vh;
    }

    .photo-preview-img {
        max-height: 50vh;
    }

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

    .scan-summary-stats {
        flex-direction: column;
        gap: var(--space-2);
    }

    .scan-summary-meta {
        flex-direction: column;
        gap: var(--space-1);
    }

    .scan-card-header {
        flex-direction: column;
        gap: var(--space-2);
    }
}

/* ===========================
   Menu Card (Search Results)
   index.html uses style-improved.css (not style.css), so card styles live here
   =========================== */
.menu-card {
    position: relative;
    background: var(--color-bg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--color-border-light);
    box-shadow: var(--shadow-sm);
    overflow: hidden;
    transition: transform var(--transition-base), box-shadow var(--transition-base);
    cursor: pointer;
}

.menu-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow-md);
}

.menu-image-container {
    position: relative;
    height: 200px;
    overflow: hidden;
    background: var(--color-bg-tertiary);
}

.menu-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.3s ease;
}

.menu-card:hover .menu-image {
    transform: scale(1.03);
}

.image-credit {
    position: absolute;
    bottom: 6px;
    right: 8px;
    background: rgba(0, 0, 0, 0.5);
    color: rgba(255, 255, 255, 0.88);
    font-size: 0.68rem;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    backdrop-filter: blur(4px);
    pointer-events: none;
}

/* 유사(상속) 이미지 표시 */
.image-credit.inherited {
    background: rgba(59, 130, 246, 0.7);
    color: #fff;
}

.inherited-image {
    position: relative;
}

.inherited-image::after {
    content: '';
    position: absolute;
    inset: 0;
    border: 2px dashed rgba(59, 130, 246, 0.5);
    border-radius: inherit;
    pointer-events: none;
}

.menu-image-container.image-error {
    display: none;
}

.menu-card-body {
    padding: var(--space-5) var(--space-6);
}

.menu-name-ko {
    font-size: var(--text-2xl);
    font-weight: 700;
    color: var(--color-text);
    margin-bottom: var(--space-1);
    font-family: var(--font-korean);
}

/* 로마자 + TTS 버튼 행 */
.menu-romanization-row {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
}

.menu-romanization {
    font-size: var(--text-sm);
    color: var(--color-primary);
    font-style: italic;
    font-weight: 500;
    letter-spacing: 0.03em;
}

/* TTS 버튼 — 로마자 옆 인라인 */
.card-tts-btn {
    flex-shrink: 0;
    background: none;
    border: 1.5px solid var(--color-primary);
    border-radius: 50%;
    width: 30px;
    height: 30px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    color: var(--color-primary);
    transition: background 0.15s, color 0.15s;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
    touch-action: manipulation;
}

.card-tts-btn:hover,
.card-tts-btn[data-playing] {
    background: var(--color-primary);
    color: white;
}

.card-tts-btn .material-symbols-outlined {
    font-size: 16px;
}

.menu-name-en {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    font-style: italic;
    margin-bottom: var(--space-1);
}

.menu-name-composed {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--color-primary);
    margin-bottom: var(--space-2);
}

.menu-divider {
    border: none;
    border-top: 1px solid var(--color-border-light);
    margin: var(--space-3) 0;
}

.menu-stats {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-4);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
}

.stat-item {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    font-weight: 500;
    color: var(--color-text-secondary);
}

.menu-description {
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    line-height: 1.6;
    margin-bottom: var(--space-3);
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.menu-allergens {
    margin-bottom: var(--space-3);
}

.allergen-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-warning);
    margin-bottom: var(--space-1);
}

.allergen-disclaimer {
    font-size: var(--text-xs);
    color: var(--color-text-muted);
    background: rgba(245, 158, 11, 0.06);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-warning);
    margin-bottom: var(--space-3);
    line-height: 1.5;
}

.modifiers-section {
    margin-bottom: var(--space-3);
}

.modifiers-title {
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--color-text-secondary);
    margin-bottom: var(--space-2);
}

.modifier-item {
    display: flex;
    gap: var(--space-2);
    align-items: center;
    font-size: var(--text-sm);
    color: var(--color-text);
    margin-bottom: var(--space-1);
}

.modifier-ko {
    font-weight: 600;
    color: var(--color-primary);
}

.modifier-en {
    color: var(--color-text-secondary);
}

.ai-discovery-card {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-dark) 100%);
    color: white;
    text-align: center;
    padding: var(--space-12) var(--space-6);
}

.ai-discovery-card .menu-name-ko {
    color: white;
}

.ai-discovery-message {
    font-size: var(--text-base);
    opacity: 0.9;
    line-height: 1.6;
    margin-top: var(--space-3);
}

/* Results grid — 2 columns on tablet+ */
@media (min-width: 640px) {
    .results-container {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Single result — center it up to 560px wide (not half-screen) */
@media (min-width: 640px) {
    .results-container:has(.menu-card:only-child) {
        grid-template-columns: minmax(0, 560px);
        justify-content: center;
    }
}

/* Sticky results header (back btn stays visible on scroll) */
.results-section .results-header,
.scan-results-section .results-header {
    position: sticky;
    top: 0;
    background: var(--color-bg);
    z-index: 20;
    padding: var(--space-3) 0;
    border-bottom: 1px solid var(--color-border-light);
    margin-bottom: var(--space-4);
    box-shadow: 0 2px 8px rgba(0,0,0,0.04);
}

/* FAQ Accordion (details/summary pattern) */
details.faq-item {
    cursor: pointer;
}

details.faq-item > summary {
    list-style: none;
    cursor: pointer;
    padding-right: var(--space-8);
    position: relative;
    margin-bottom: 0;
}

details.faq-item > summary::-webkit-details-marker {
    display: none;
}

details.faq-item > summary::after {
    content: '+';
    position: absolute;
    right: 0;
    top: 0;
    font-size: var(--text-xl);
    color: var(--color-primary);
    line-height: 1;
    font-weight: 400;
    transition: transform var(--transition-base);
}

details.faq-item[open] > summary::after {
    transform: rotate(45deg);
}

details.faq-item > .faq-answer {
    margin-top: var(--space-3);
    padding-top: var(--space-3);
    border-top: 1px solid var(--color-border-light);
}

/* Feature cards 2-column from 360px (mobile) */
@media (min-width: 360px) and (max-width: 639px) {
    .feature-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: var(--space-3);
    }
}

/* ===========================
   Print Styles
   =========================== */
@media print {
    .search-box,
    .photo-upload,
    .language-selector,
    .back-btn {
        display: none;
    }
}

/* ===========================
   Reduced Motion
   =========================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}