/* CSS Variables */
:root {
    --primary: #8B5A2B;
    --primary-light: #A67C52;
    --primary-dark: #5D3A1A;
    --secondary: #D4A574;
    --accent: #E8B87D;
    --accent-bright: #FF9F4A;
    --cream: #FDF6EC;
    --cream-dark: #F5EBE0;
    --dark: #1E1410;
    --dark-light: #2D2118;
    --text: #2D2118;
    --text-light: #6B5B4F;
    --text-muted: #9A8A7C;
    --bg: #FFFBF7;
    --bg-pattern: #FFF9F3;
    --white: #fff;
    --success: #4CAF50;
    --shadow-sm: 0 2px 8px rgba(30, 20, 16, 0.06);
    --shadow: 0 4px 24px rgba(30, 20, 16, 0.08);
    --shadow-hover: 0 12px 40px rgba(30, 20, 16, 0.12);
    --shadow-glow: 0 8px 32px rgba(139, 90, 43, 0.2);
    --radius: 20px;
    --radius-sm: 12px;
    --radius-xs: 8px;
    --transition: all 0.25s ease;
    --transition-smooth: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --glass: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.4);
}

/* Reset & Base */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Nunito', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg);
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(232, 184, 125, 0.05) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(139, 90, 43, 0.03) 0%, transparent 40%),
        radial-gradient(circle at 40% 80%, rgba(212, 165, 116, 0.04) 0%, transparent 45%);
    color: var(--text);
    line-height: 1.7;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

h1, h2, h3, h4 {
    font-family: 'Playfair Display', Georgia, serif;
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Selection styling */
::selection {
    background: var(--accent);
    color: var(--dark);
}

/* Focus styling for accessibility */
:focus-visible {
    outline: 3px solid var(--accent);
    outline-offset: 2px;
}

/* Header */
.header {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 50%, #3D2A1E 100%);
    color: var(--white);
    padding: 56px 0 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 10% 20%, rgba(232, 184, 125, 0.15) 0%, transparent 40%),
        radial-gradient(circle at 90% 80%, rgba(212, 165, 116, 0.1) 0%, transparent 35%);
    pointer-events: none;
}

.header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary), var(--primary));
    background-size: 300% 100%;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

/* Slower, subtler gradient animation */
.header::after,
.footer::before {
    animation: gradientShift 12s ease-in-out infinite;
}

.logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    margin-bottom: 16px;
    position: relative;
    z-index: 1;
}

.logo-icon {
    font-size: 56px;
    filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
    animation: gentleFloat 6s ease-in-out infinite;
}

@keyframes gentleFloat {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-3px); }
}

.logo-text {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 42px;
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #fff 0%, var(--accent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.tagline {
    color: var(--cream);
    font-size: 17px;
    font-weight: 400;
    letter-spacing: 0.02em;
    opacity: 0.9;
    position: relative;
    z-index: 1;
}

/* Navigation */
.nav {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: var(--shadow-sm);
    border-bottom: 1px solid var(--glass-border);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 24px;
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    flex-shrink: 0;
    padding: 12px 0;
}

.nav-brand-icon {
    font-size: 28px;
}

.nav-brand-text {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 20px;
    font-weight: 700;
    color: var(--dark);
    letter-spacing: -0.01em;
}

.nav-tabs {
    display: flex;
    gap: 8px;
    padding: 16px 0;
    overflow-x: auto;
    scrollbar-width: none;
    justify-content: flex-end;
}

.nav-tabs::-webkit-scrollbar {
    display: none;
}

.nav-tab {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 24px;
    border: 2px solid transparent;
    background: transparent;
    border-radius: 100px;
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: 600;
    color: var(--text-light);
    transition: var(--transition);
    white-space: nowrap;
    position: relative;
}

.nav-tab:hover {
    background: var(--cream);
    color: var(--primary);
    border-color: var(--cream-dark);
    transform: translateY(-1px);
}

.nav-tab.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-glow);
    border-color: transparent;
}

.tab-icon {
    font-size: 20px;
    transition: transform 0.3s ease;
}

/* Main Content */
.main {
    padding: 56px 0 80px;
}

.section {
    display: none;
    animation: fadeIn 0.3s ease;
}

.section.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }
    to {
        opacity: 1;
    }
}

/* Landing/Home Section */
.landing-hero {
    min-height: calc(100vh - 88px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 60px 0;
    margin: -56px 0 -80px;
    background: linear-gradient(135deg, var(--cream) 0%, var(--bg) 50%, var(--cream-dark) 100%);
    position: relative;
    overflow: hidden;
}

.landing-hero::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: 
        radial-gradient(circle at 30% 20%, rgba(139, 90, 43, 0.08) 0%, transparent 40%),
        radial-gradient(circle at 70% 80%, rgba(212, 165, 116, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 50% 50%, rgba(232, 184, 125, 0.05) 0%, transparent 50%);
    animation: floatBackground 20s ease-in-out infinite;
    pointer-events: none;
}

@keyframes floatBackground {
    0%, 100% { transform: translate(0, 0) rotate(0deg); }
    50% { transform: translate(-2%, -2%) rotate(1deg); }
}

.landing-content {
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
    position: relative;
    z-index: 1;
}

.landing-icon {
    font-size: 80px;
    margin-bottom: 24px;
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-10px); }
}

.landing-title {
    font-family: 'Playfair Display', serif;
    font-size: 48px;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--primary) 50%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.landing-subtitle {
    font-size: 24px;
    color: var(--primary);
    font-weight: 600;
    margin-bottom: 16px;
}

.landing-description {
    font-size: 18px;
    color: var(--text-light);
    line-height: 28px;
    max-width: 700px;
    margin: 0 auto 48px;
}

.landing-features {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
    margin-bottom: 48px;
}

.feature-card {
    background: var(--white);
    padding: 32px 24px;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: var(--transition-smooth);
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.feature-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-hover);
    border-color: var(--primary-light);
}

.feature-icon {
    font-size: 48px;
    display: block;
    margin-bottom: 16px;
}

.feature-card h3 {
    font-size: 18px;
    color: var(--dark);
    margin-bottom: 8px;
    font-weight: 700;
}

.feature-card p {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
}

.landing-cta {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: white;
    border: none;
    padding: 18px 48px;
    font-size: 18px;
    font-weight: 700;
    border-radius: 50px;
    cursor: pointer;
    transition: var(--transition-smooth);
    display: inline-flex;
    align-items: center;
    gap: 12px;
    box-shadow: var(--shadow-glow);
}

.landing-cta:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(139, 90, 43, 0.35);
}

.cta-arrow {
    font-size: 20px;
    transition: transform 0.3s ease;
}

.landing-cta:hover .cta-arrow {
    transform: translateX(5px);
}

.landing-credit {
    margin-top: 60px;
    padding-top: 32px;
    border-top: 1px solid var(--cream-dark);
}

.landing-credit p {
    font-size: 16px;
    color: var(--text-muted);
}

.landing-credit strong {
    color: var(--primary);
    font-weight: 700;
}

/* Landing Responsive */
@media (max-width: 900px) {
    .landing-features {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .landing-title {
        font-size: 42px;
    }
    
    .landing-subtitle {
        font-size: 20px;
    }
}

@media (max-width: 600px) {
    .landing-hero {
        padding: 40px 0;
    }
    
    .landing-features {
        grid-template-columns: 1fr;
        gap: 16px;
    }
    
    .landing-title {
        font-size: 32px;
    }
    
    .landing-icon {
        font-size: 60px;
    }
    
    .feature-card {
        padding: 24px 20px;
    }
    
    .landing-cta {
        padding: 16px 36px;
        font-size: 16px;
    }
}

.section-header {
    text-align: center;
    margin-bottom: 48px;
}

.section-header h2 {
    font-size: 38px;
    color: var(--dark);
    margin-bottom: 16px;
    position: relative;
    display: inline-block;
}

.section-header h2::after {
    content: '';
    position: absolute;
    bottom: -8px;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 2px;
}

.section-header p {
    color: var(--text-light);
    font-size: 17px;
    max-width: 500px;
    margin: 16px auto 0;
    line-height: 1.6;
}

/* Filter Bar */
.filter-bar {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    margin-bottom: 40px;
    flex-wrap: wrap;
    padding: 16px 24px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
}

.filter-label {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.filter-btn {
    padding: 10px 20px;
    border: 2px solid var(--cream-dark);
    background: var(--white);
    border-radius: 100px;
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-light);
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: var(--accent);
    color: var(--primary);
    box-shadow: var(--shadow-sm);
}

.filter-btn.active {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    border-color: transparent;
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

/* Cards Grid */
.cards-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 28px;
}

/* Card */
.card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    transition: var(--transition);
    cursor: pointer;
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    display: flex;
    flex-direction: column;
}

.card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    opacity: 0;
    transition: opacity 0.3s ease;
}

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

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

.card-header {
    padding: 28px 28px 16px;
    display: flex;
    align-items: flex-start;
    gap: 18px;
}

.card-icon {
    font-size: 52px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 60px;
    min-height: 60px;
    background: var(--cream);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.card-icon svg {
    width: 48px;
    height: 48px;
}

.card-title-area {
    flex: 1;
}

.card-title {
    font-size: 24px;
    line-height: 32px;
    color: var(--dark);
    margin-bottom: 6px;
    transition: color 0.3s ease;
}

.card:hover .card-title {
    color: var(--primary);
}

.card-subtitle {
    font-size: 14px;
    color: rgba(142, 121, 103, 1);
    font-weight: 500;
}

.card-body {
    padding: 0 28px 28px;
}

.card-description {
    font-size: 15px;
    color: var(--text-light);
    line-height: 22px;
    margin-bottom: 20px;
}

/* Flavor/Attribute Bars */
.attribute-bars {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 16px;
    background: var(--cream);
    border-radius: var(--radius-sm);
}

.attribute-bar {
    display: flex;
    align-items: center;
    gap: 14px;
}

.attribute-label {
    font-size: 12px;
    color: var(--text-muted);
    width: 80px;
    flex-shrink: 0;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.attribute-track {
    flex: 1;
    height: 8px;
    background: var(--white);
    border-radius: 4px;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.08);
}

.attribute-fill {
    height: 100%;
    border-radius: 4px;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
}

.attribute-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.3) 0%, transparent 100%);
    border-radius: 4px 4px 0 0;
}

.attribute-fill.strength { background: linear-gradient(90deg, #A67C52, #5D3A1A); }
.attribute-fill.acidity { background: linear-gradient(90deg, #FFB74D, #FF8A50); }
.attribute-fill.sweetness { background: linear-gradient(90deg, #E8B87D, #D4A574); }
.attribute-fill.body { background: linear-gradient(90deg, #8D6E63, #5D4037); }

/* Tags */
.card-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 20px;
}

.tag {
    padding: 6px 14px;
    background: var(--cream);
    border-radius: 100px;
    font-size: 11px;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: var(--transition);
}

.tag:hover {
    opacity: 0.85;
}

.tag.origin { background: linear-gradient(135deg, #E8F5E9, #C8E6C9); color: #2E7D32; }
.tag.type { background: linear-gradient(135deg, #FFF3E0, #FFE0B2); color: #E65100; }
.tag.difficulty { background: linear-gradient(135deg, #E3F2FD, #BBDEFB); color: #1565C0; }

/* Card Footer */
.card-footer {
    padding: 18px 28px;
    border-top: 1px solid var(--cream-dark);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--cream);
    background: linear-gradient(180deg, var(--white) 0%, var(--cream) 100%);
    margin-top: auto;
}

.learn-more {
    font-size: 13px;
    font-weight: 700;
    color: var(--primary);
    display: flex;
    align-items: center;
    gap: 6px;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    transition: var(--transition);
}

.learn-more::after {
    content: '→';
    font-size: 16px;
    transition: transform 0.2s ease;
}

.card:hover .learn-more {
    color: var(--primary-dark);
}

.card:hover .learn-more::after {
    transform: translateX(3px);
}

/* Drink Builder */
.builder-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
    align-items: start;
}

@media (max-width: 900px) {
    .builder-container {
        grid-template-columns: 1fr;
    }
}

.builder-panel {
    background: var(--white);
    border-radius: var(--radius);
    padding: 36px;
    box-shadow: var(--shadow);
    border: 1px solid rgba(0, 0, 0, 0.04);
}

.builder-panel h3 {
    font-size: 22px;
    color: var(--dark);
    margin-bottom: 28px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.builder-panel h3::before {
    content: '🎨';
    font-size: 24px;
}

.ingredient-group {
    margin-bottom: 28px;
    padding: 20px;
    background: var(--cream);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.ingredient-group:hover {
    background: var(--cream-dark);
}

.ingredient-group h4 {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 14px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.ingredient-options {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.ingredient-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 18px;
    border: 2px solid var(--white);
    background: var(--white);
    border-radius: var(--radius-xs);
    cursor: pointer;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    color: var(--text);
    transition: var(--transition);
    box-shadow: var(--shadow-sm);
}

.ingredient-btn:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow);
}

.ingredient-btn.selected {
    border-color: var(--primary);
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--white);
    box-shadow: var(--shadow-glow);
}

.ing-icon {
    font-size: 18px;
    transition: transform 0.3s ease;
}

.reset-btn {
    width: 100%;
    padding: 16px;
    border: none;
    background: linear-gradient(135deg, var(--cream-dark) 0%, var(--cream) 100%);
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-family: inherit;
    font-size: 14px;
    font-weight: 700;
    color: var(--text-light);
    transition: var(--transition);
    margin-top: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.reset-btn:hover {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-bright) 100%);
    color: var(--white);
    box-shadow: var(--shadow);
}

/* Builder Result */
.builder-result {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow);
    text-align: center;
    border: 1px solid rgba(0, 0, 0, 0.04);
    position: relative;
    overflow: hidden;
}

.builder-result::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: radial-gradient(circle at 50% 0%, rgba(232, 184, 125, 0.08) 0%, transparent 60%);
    pointer-events: none;
}

.cup-visualization {
    margin-bottom: 32px;
    perspective: 500px;
}

.cup-container {
    position: relative;
    width: 160px;
    height: 200px;
    margin: 0 auto;
}

.cup {
    position: relative;
    width: 140px;
    height: 180px;
    margin: 0 auto;
    background: linear-gradient(135deg, 
        rgba(255,255,255,0.95) 0%, 
        rgba(240,240,240,0.9) 50%,
        rgba(220,220,220,0.85) 100%);
    border-radius: 8px 8px 40% 40% / 8px 8px 25% 25%;
    border: 3px solid #ccc;
    border-top: none;
    overflow: hidden;
    box-shadow: 
        inset 3px 0 8px rgba(0,0,0,0.08),
        inset -3px 0 8px rgba(0,0,0,0.08),
        inset 0 -10px 20px rgba(0,0,0,0.05),
        4px 8px 20px rgba(0,0,0,0.15);
}

.cup::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 16px;
    background: linear-gradient(180deg, #e8e8e8 0%, #d5d5d5 100%);
    border-radius: 8px 8px 0 0;
    border-bottom: 2px solid #c0c0c0;
}

.cup::after {
    content: '';
    position: absolute;
    top: 20px;
    left: 8px;
    width: 20px;
    height: 60%;
    background: linear-gradient(90deg, 
        rgba(255,255,255,0.4) 0%, 
        rgba(255,255,255,0) 100%);
    border-radius: 10px;
    pointer-events: none;
}

.cup-contents {
    position: absolute;
    bottom: 8px;
    left: 6px;
    right: 6px;
    top: 20px;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    overflow: hidden;
    border-radius: 0 0 35% 35% / 0 0 20% 20%;
}

.cup .layer {
    transition: all 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    position: relative;
    flex-shrink: 0;
}

.cup .layer.animate-pour {
    animation: pourIn 0.6s ease-out;
}

@keyframes pourIn {
    0% {
        transform: translateY(-20px);
        opacity: 0;
    }
    100% {
        transform: translateY(0);
        opacity: 1;
    }
}

.cup-handle {
    position: absolute;
    right: -18px;
    top: 60px;
    width: 28px;
    height: 50px;
    border: 5px solid #c5c5c5;
    border-left: none;
    border-radius: 0 25px 25px 0;
    background: transparent;
    box-shadow: 3px 3px 8px rgba(0,0,0,0.1);
}

.cup-steam {
    position: absolute;
    top: -30px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 8px;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.cup-steam.visible {
    opacity: 1;
}

.steam-line {
    width: 2px;
    height: 25px;
    background: linear-gradient(180deg, rgba(200,200,200,0) 0%, rgba(200,200,200,0.5) 50%, rgba(200,200,200,0) 100%);
    border-radius: 2px;
    animation: steam 2s ease-in-out infinite;
}

.steam-line:nth-child(2) {
    animation-delay: 0.3s;
    height: 20px;
}

.steam-line:nth-child(3) {
    animation-delay: 0.6s;
    height: 22px;
}

@keyframes steam {
    0%, 100% {
        transform: translateY(0) scaleY(1);
        opacity: 0;
    }
    50% {
        transform: translateY(-10px) scaleY(1.2);
        opacity: 0.6;
    }
}

.empty-cup-message {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: #bbb;
    font-size: 12px;
    text-align: center;
    pointer-events: none;
    padding: 10px;
}

.ice-cubes {
    position: absolute;
    left: 6px;
    right: 6px;
    bottom: 8px;
    top: 20px;
    pointer-events: none;
    z-index: 10;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
}

.ice-cube {
    position: absolute;
    background: linear-gradient(135deg, 
        rgba(220,240,255,0.9) 0%, 
        rgba(180,220,255,0.7) 50%,
        rgba(200,230,255,0.8) 100%);
    border: 1px solid rgba(255,255,255,0.8);
    border-radius: 4px;
    box-shadow: 
        inset 2px 2px 4px rgba(255,255,255,0.8),
        1px 1px 3px rgba(0,0,0,0.1);
}

.topping-layer {
    position: absolute;
    top: 16px;
    left: 6px;
    right: 6px;
    z-index: 5;
    pointer-events: none;
}

.caramel-drizzle {
    position: absolute;
    width: 100%;
    left: 0;
    pointer-events: none;
}

.caramel-svg {
    width: 100%;
    height: 24px;
    overflow: visible;
}

.caramel-wave {
    fill: none;
    stroke: url(#caramelGrad);
    stroke-width: 3.5;
    stroke-linecap: round;
    stroke-linejoin: round;
    filter: drop-shadow(0 1px 1px rgba(139,90,43,0.4));
    animation: caramelDraw 0.8s ease-out forwards;
    stroke-dasharray: 120;
    stroke-dashoffset: 120;
}

.caramel-wave.wave-2 {
    stroke-width: 2.5;
    animation-delay: 0.15s;
    opacity: 0.85;
}

@keyframes caramelDraw {
    to {
        stroke-dashoffset: 0;
    }
}

/* Drink found success state */
.builder-result.drink-matched .cup {
    box-shadow: 
        inset 3px 0 8px rgba(0,0,0,0.08),
        inset -3px 0 8px rgba(0,0,0,0.08),
        inset 0 -10px 20px rgba(0,0,0,0.05),
        4px 8px 20px rgba(0,0,0,0.15),
        0 0 20px rgba(139, 69, 19, 0.3);
    transition: box-shadow 0.3s ease;
}

.result-info {
    position: relative;
    z-index: 1;
}

.result-info h3 {
    font-size: 28px;
    color: var(--dark);
    margin-bottom: 14px;
    transition: var(--transition);
}

.builder-result.drink-matched .result-info h3 {
    color: var(--primary);
}

.result-info p {
    color: var(--text-light);
    font-size: 15px;
    line-height: 1.7;
    max-width: 300px;
    margin: 0 auto;
}

.result-recipe {
    margin-top: 28px;
    padding: 24px;
    background: var(--cream);
    border-radius: var(--radius-sm);
    text-align: left;
}

.result-recipe h4 {
    font-size: 12px;
    color: var(--text-muted);
    margin-bottom: 16px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
}

.result-recipe ul {
    list-style: none;
}

.result-recipe li {
    padding: 10px 0;
    font-size: 14px;
    color: var(--text);
    display: flex;
    align-items: center;
    gap: 10px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.result-recipe li:last-child {
    border-bottom: none;
}

.result-recipe li::before {
    content: '✓';
    color: var(--success);
    font-weight: bold;
    font-size: 12px;
    width: 20px;
    height: 20px;
    background: rgba(76, 175, 80, 0.1);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    z-index: 1000;
    align-items: center;
    justify-content: center;
    padding: 24px;
}

.modal.active {
    display: flex;
}

.modal-overlay {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(30, 20, 16, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    background: var(--white);
    border-radius: var(--radius);
    max-width: 620px;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: 0 25px 80px rgba(30, 20, 16, 0.35);
    animation: modalIn 0.25s ease-out;
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.modal-content.wide {
    max-width: 920px;
}

@keyframes modalIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-close {
    position: absolute;
    top: 20px;
    right: 20px;
    width: 44px;
    height: 44px;
    border: none;
    background: var(--cream);
    border-radius: 50%;
    cursor: pointer;
    font-size: 24px;
    color: var(--text);
    transition: background 0.2s ease, color 0.2s ease;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-close:hover {
    background: var(--primary);
    color: var(--white);
}

.modal-header {
    padding: 36px 36px 0;
    display: flex;
    align-items: center;
    gap: 20px;
}

.modal-icon {
    font-size: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    min-width: 72px;
    min-height: 72px;
    background: var(--cream);
    border-radius: var(--radius-sm);
}

.modal-icon svg {
    width: 56px;
    height: 56px;
}

.modal-header h2 {
    font-size: 30px;
    color: var(--dark);
}

.modal-body {
    padding: 28px 36px 40px;
}

/* Modal Content Sections */
.modal-section {
    margin-bottom: 28px;
    padding: 20px;
    background: var(--cream);
    border-radius: var(--radius-sm);
}

.modal-section:last-child {
    margin-bottom: 0;
}

.modal-section h4 {
    font-size: 11px;
    color: var(--text-muted);
    margin-bottom: 12px;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-weight: 700;
}

.modal-section p, .modal-section ul {
    font-size: 15px;
    color: var(--text);
    line-height: 1.8;
}

.modal-section ul {
    list-style: none;
    padding-left: 0;
}

.modal-section li {
    padding: 8px 0;
    display: flex;
    align-items: flex-start;
    gap: 10px;
    border-bottom: 1px solid rgba(0, 0, 0, 0.04);
}

.modal-section li:last-child {
    border-bottom: none;
}

.modal-section li::before {
    content: '☕';
    font-size: 12px;
    flex-shrink: 0;
    margin-top: 2px;
}

/* Flavor Profile in Modal */
.flavor-profile {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 18px;
    background: transparent;
    padding: 0;
}

.flavor-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding: 14px;
    background: var(--white);
    border-radius: var(--radius-xs);
    transition: var(--transition);
}

.flavor-item:hover {
    box-shadow: var(--shadow-sm);
}

.flavor-name {
    font-size: 11px;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    font-weight: 700;
}

.flavor-bar {
    height: 10px;
    background: var(--cream);
    border-radius: 5px;
    overflow: hidden;
    box-shadow: inset 0 1px 3px rgba(0, 0, 0, 0.06);
}

.flavor-fill {
    height: 100%;
    border-radius: 5px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    position: relative;
    transition: width 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.flavor-fill::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 50%;
    background: linear-gradient(180deg, rgba(255,255,255,0.35) 0%, transparent 100%);
    border-radius: 5px 5px 0 0;
}

/* Origin Map Placeholder */
.origin-info {
    display: flex;
    align-items: center;
    gap: 18px;
    padding: 20px;
    background: linear-gradient(135deg, var(--white), var(--cream));
    border-radius: var(--radius-sm);
    border: 1px solid var(--cream-dark);
    transition: var(--transition);
}

.origin-info:hover {
    box-shadow: var(--shadow-sm);
}

.origin-icon {
    font-size: 36px;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--cream);
    border-radius: var(--radius-xs);
}

.origin-text {
    flex: 1;
}

.origin-text strong {
    display: block;
    font-size: 17px;
    color: var(--dark);
    margin-bottom: 6px;
    font-family: 'Playfair Display', Georgia, serif;
}

.origin-text span {
    font-size: 14px;
    color: var(--text-light);
    line-height: 1.5;
}

/* Comparison Grid */
.compare-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 28px;
}

@media (max-width: 600px) {
    .compare-grid {
        grid-template-columns: 1fr;
    }
}

.compare-item {
    padding: 24px;
    background: linear-gradient(135deg, var(--white) 0%, var(--cream) 100%);
    border-radius: var(--radius-sm);
    border: 1px solid var(--cream-dark);
    transition: var(--transition);
}

.compare-item:hover {
    box-shadow: var(--shadow);
}

.compare-item h4 {
    font-size: 20px;
    color: var(--dark);
    margin-bottom: 18px;
    display: flex;
    align-items: center;
    gap: 10px;
    padding-bottom: 14px;
    border-bottom: 2px solid var(--cream-dark);
}

/* Footer */
.footer {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: var(--white);
    padding: 56px 0 48px;
    text-align: center;
    position: relative;
    overflow: hidden;
}

.footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--accent), var(--secondary), var(--primary));
    background-size: 300% 100%;
    animation: gradientShift 8s ease-in-out infinite;
}

.footer::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        radial-gradient(circle at 20% 50%, rgba(232, 184, 125, 0.1) 0%, transparent 40%),
        radial-gradient(circle at 80% 30%, rgba(139, 90, 43, 0.08) 0%, transparent 35%);
    pointer-events: none;
}

.footer .container {
    position: relative;
    z-index: 1;
}

.footer p {
    font-size: 18px;
    margin-bottom: 12px;
    font-weight: 500;
}

.footer p:first-of-type {
    font-family: 'Playfair Display', Georgia, serif;
    font-size: 22px;
}

.footer-note {
    font-size: 14px;
    color: var(--accent);
    opacity: 0.9;
    letter-spacing: 0.02em;
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        padding: 40px 0 36px;
    }
    
    .logo-icon {
        font-size: 44px;
    }
    
    .logo-text {
        font-size: 32px;
    }
    
    .tagline {
        font-size: 15px;
        padding: 0 20px;
    }
    
    .nav-container {
        flex-wrap: wrap;
    }
    
    .nav-brand {
        padding: 12px 0 8px;
    }
    
    .nav-brand-text {
        font-size: 18px;
    }
    
    .nav-tabs {
        padding: 8px 0 14px;
        justify-content: flex-start;
        width: 100%;
    }
    
    .nav-tab {
        padding: 10px 16px;
        font-size: 13px;
    }
    
    .main {
        padding: 40px 0 60px;
    }
    
    .section-header {
        margin-bottom: 36px;
    }
    
    .section-header h2 {
        font-size: 28px;
    }
    
    .section-header p {
        font-size: 15px;
    }
    
    .filter-bar {
        padding: 14px 18px;
        gap: 8px;
    }
    
    .cards-grid {
        grid-template-columns: 1fr;
        gap: 20px;
    }
    
    .card-header {
        padding: 24px 24px 14px;
    }
    
    .card-body {
        padding: 0 24px 24px;
    }
    
    .card-footer {
        padding: 16px 24px;
    }
    
    .builder-panel,
    .builder-result {
        padding: 28px;
    }
    
    .ingredient-group {
        padding: 16px;
    }
    
    .modal-content {
        margin: 10px;
        border-radius: var(--radius-sm);
    }
    
    .modal-header {
        padding: 28px 24px 0;
        flex-direction: column;
        text-align: center;
        gap: 16px;
    }
    
    .modal-header h2 {
        font-size: 24px;
    }
    
    .modal-body {
        padding: 24px;
    }
    
    .modal-section {
        padding: 16px;
    }
    
    .flavor-profile {
        grid-template-columns: 1fr;
    }
    
    .footer {
        padding: 44px 0 40px;
    }
    
    .footer p:first-of-type {
        font-size: 20px;
    }
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 10px;
    height: 10px;
}

::-webkit-scrollbar-track {
    background: var(--cream);
    border-radius: 5px;
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary-light), var(--primary));
    border-radius: 5px;
    border: 2px solid var(--cream);
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary), var(--primary-dark));
}

/* Smooth scroll for Firefox */
* {
    scrollbar-width: thin;
    scrollbar-color: var(--primary-light) var(--cream);
}

/* Layer Colors for Drink Builder */
.layer-espresso { 
    background: linear-gradient(180deg, #5D4037 0%, #3E2723 20%, #2C1810 100%);
}
.layer-double-espresso { 
    background: linear-gradient(180deg, #4E342E 0%, #3E2723 30%, #1A0F0A 100%);
}
.layer-brewed { 
    background: linear-gradient(180deg, #6D4C41 0%, #5D4037 50%, #4E342E 100%);
}
.layer-cold-brew { 
    background: linear-gradient(180deg, #5D4037 0%, #4E342E 50%, #3E2723 100%);
}
.layer-steamed-milk { 
    background: linear-gradient(180deg, #FFFEF9 0%, #FFF8E1 30%, #FFECB3 100%);
}
.layer-milk-foam { 
    background: linear-gradient(180deg, #FFFFFF 0%, #FEFEFE 50%, #FFF8E1 100%);
    position: relative;
}
.layer-milk-foam::before {
    content: '';
    position: absolute;
    top: 2px;
    left: 10%;
    right: 10%;
    height: 40%;
    background: radial-gradient(ellipse at 30% 50%, rgba(255,255,255,0.9) 0%, transparent 70%),
                radial-gradient(ellipse at 70% 30%, rgba(255,255,255,0.8) 0%, transparent 60%);
    border-radius: 50%;
}
.layer-frothed-milk { 
    background: linear-gradient(180deg, #FFFFFF 0%, #FAFAFA 40%, #FFF8E1 100%);
}
.layer-cold-milk { 
    background: linear-gradient(180deg, #FFFFFF 0%, #FFFEF5 50%, #FFFDE7 100%);
}
.layer-hot-water { 
    background: linear-gradient(180deg, rgba(230,245,255,0.6) 0%, rgba(200,230,255,0.4) 100%);
}
.layer-chocolate { 
    background: linear-gradient(180deg, #6D4C41 0%, #5D4037 50%, #4E342E 100%);
}
.layer-whipped-cream { 
    background: linear-gradient(180deg, #FFFFFF 0%, #FEFEFE 60%, #F5F5F5 100%);
    border-radius: 50% 50% 0 0 / 30% 30% 0 0;
    position: relative;
    overflow: visible;
}
.layer-whipped-cream::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 15%;
    right: 15%;
    height: 15px;
    background: radial-gradient(ellipse at 50% 100%, #fff 0%, #f8f8f8 100%);
    border-radius: 50%;
}
.layer-caramel { 
    background: linear-gradient(180deg, #FFB300 0%, #FF8F00 50%, #E65100 100%);
}
.layer-vanilla { 
    background: linear-gradient(180deg, #FFFEF5 0%, #FFF8E1 100%);
}

/* Crema effect for espresso */
.layer-crema {
    background: linear-gradient(180deg, #D4A574 0%, #C9956C 50%, #8B6914 100%);
    height: 8px !important;
}

/* Drink Found Animation */
.drink-found {
    animation: drinkPulse 0.6s ease;
}

@keyframes drinkPulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

/* Hover glow effect for interactive elements */
.nav-tab:active,
.filter-btn:active,
.ingredient-btn:active {
    transform: scale(0.98);
}

/* Print styles */
@media print {
    .nav,
    .filter-bar,
    .modal,
    .footer {
        display: none !important;
    }
    
    .card {
        break-inside: avoid;
        box-shadow: none;
        border: 1px solid #ddd;
    }
}