:root {
    /* Indian-inspired color palette */
    --saffron: #FF9933;
    --deep-orange: #FF6B2C;
    --turmeric: #FDB913;
    --forest-green: #138808;
    --peacock-blue: #0066CC;
    --maroon: #8B0000;
    --cream: #FFF8E7;
    --warm-white: #FFFBF5;
    --charcoal: #2C2C2C;
    --gold: #FFD700;
    
    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #FF9933 0%, #FF6B2C 50%, #8B0000 100%);
    --gradient-secondary: linear-gradient(135deg, #138808 0%, #0066CC 100%);
    --gradient-overlay: linear-gradient(135deg, rgba(255, 153, 51, 0.1) 0%, rgba(255, 107, 44, 0.05) 100%);
}

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

body {
    font-family: 'DM Sans', sans-serif;
    background: var(--warm-white);
    color: var(--charcoal);
    overflow-x: hidden;
    position: relative;
}

/* Grain texture overlay */
.grain-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 400 400' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noiseFilter'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' /%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noiseFilter)' opacity='0.05'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 1000;
    mix-blend-mode: overlay;
}

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

/* Header */
.header {
    padding: 24px 0;
    border-bottom: 3px solid var(--saffron);
    background: white;
    position: sticky;
    top: 0;
    z-index: 100;
    box-shadow: 0 2px 20px rgba(255, 153, 51, 0.1);
}

.header .container {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo h1 {
    font-family: 'Playfair Display', serif;
    font-size: 2.5rem;
    font-weight: 700;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    letter-spacing: -1px;
}

.logo .phd {
    font-size: 1.8rem;
    font-style: italic;
}

.logo .tagline {
    font-size: 0.9rem;
    color: var(--forest-green);
    margin-top: 4px;
    font-weight: 500;
}

.lang-toggle {
    padding: 12px 24px;
    background: var(--gradient-secondary);
    color: white;
    border: none;
    border-radius: 50px;
    font-weight: 600;
    cursor: pointer;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    font-size: 0.95rem;
}

.lang-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(19, 136, 8, 0.3);
}

/* Hero Section */
.hero {
    padding: 80px 0 60px;
    background: var(--gradient-overlay);
    position: relative;
    overflow: hidden;
}

.hero-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.hero-title {
    font-family: 'Playfair Display', serif;
    font-size: 4.5rem;
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
    color: var(--charcoal);
}

.hero-title .line {
    display: block;
    animation: slideUp 0.8s ease forwards;
    opacity: 0;
}

.hero-title .line:nth-child(1) {
    animation-delay: 0.1s;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title .line:nth-child(2) {
    animation-delay: 0.3s;
}

.hero-subtitle {
    font-size: 1.25rem;
    max-width: 700px;
    margin: 0 auto;
    color: var(--charcoal);
    line-height: 1.7;
    opacity: 0;
    animation: fadeIn 0.8s ease 0.5s forwards;
    font-weight: 400;
}

/* Decorative shapes */
.decorative-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 1;
    overflow: hidden;
}

.shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.15;
    animation: float 20s infinite ease-in-out;
}

.shape-1 {
    width: 400px;
    height: 400px;
    background: var(--saffron);
    top: -200px;
    left: -100px;
}

.shape-2 {
    width: 350px;
    height: 350px;
    background: var(--peacock-blue);
    top: 50%;
    right: -150px;
    animation-delay: -7s;
}

.shape-3 {
    width: 300px;
    height: 300px;
    background: var(--forest-green);
    bottom: -150px;
    left: 50%;
    animation-delay: -14s;
}

/* Upload Section */
.upload-section {
    padding: 60px 0;
}

.upload-card {
    background: white;
    border-radius: 24px;
    padding: 48px;
    box-shadow: 0 10px 60px rgba(0, 0, 0, 0.08);
    border: 3px solid transparent;
    background-clip: padding-box;
    position: relative;
}

.upload-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    border-radius: 24px;
    padding: 3px;
    background: var(--gradient-primary);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.3;
}

.upload-area {
    border: 3px dashed var(--saffron);
    border-radius: 16px;
    padding: 80px 40px;
    text-align: center;
    transition: all 0.3s ease;
    background: var(--cream);
    cursor: pointer;
}

.upload-area:hover {
    border-color: var(--deep-orange);
    background: var(--warm-white);
    transform: scale(1.02);
}

.upload-area.dragover {
    border-color: var(--forest-green);
    background: rgba(19, 136, 8, 0.05);
}

.upload-icon {
    font-size: 5rem;
    margin-bottom: 20px;
    animation: bounce 2s infinite;
}

.upload-content h3 {
    font-family: 'Playfair Display', serif;
    font-size: 2rem;
    margin-bottom: 12px;
    color: var(--charcoal);
}

.upload-content p {
    font-size: 1.1rem;
    color: #666;
    margin-bottom: 24px;
}

.upload-btn {
    padding: 16px 40px;
    background: var(--gradient-primary);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 20px rgba(255, 153, 51, 0.3);
}

.upload-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px rgba(255, 153, 51, 0.4);
}

/* Preview Area */
.preview-area {
    position: relative;
    max-width: 600px;
    margin: 0 auto;
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.12);
    animation: scaleIn 0.5s ease;
}

.preview-area img {
    width: 100%;
    height: auto;
    display: block;
}

.remove-btn {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(139, 0, 0, 0.9);
    color: white;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.remove-btn:hover {
    transform: scale(1.1) rotate(90deg);
    background: var(--maroon);
}

/* Analyze Section */
.analyze-section {
    margin-top: 32px;
    text-align: center;
    animation: fadeIn 0.5s ease;
}

.analyze-btn {
    padding: 20px 60px;
    background: var(--gradient-secondary);
    color: white;
    border: none;
    border-radius: 50px;
    font-size: 1.3rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 25px rgba(19, 136, 8, 0.3);
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.analyze-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 10px 35px rgba(19, 136, 8, 0.4);
}

.analyze-btn:active {
    transform: translateY(-1px);
}

.analyze-btn.loading {
    opacity: 0.7;
    cursor: not-allowed;
}

.btn-icon {
    font-size: 1.5rem;
    animation: pulse 2s infinite;
}

/* Results Section */
.results-section {
    padding: 60px 0 80px;
    animation: fadeIn 0.6s ease;
}

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

.results-header h2 {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
    margin-bottom: 48px;
}

.result-card {
    background: white;
    border-radius: 20px;
    padding: 32px;
    box-shadow: 0 8px 30px rgba(0, 0, 0, 0.08);
    transition: all 0.3s ease;
    border-top: 4px solid transparent;
    animation: slideUp 0.6s ease forwards;
    opacity: 0;
}

.result-card:nth-child(1) {
    animation-delay: 0.1s;
    border-top-color: var(--saffron);
}

.result-card:nth-child(2) {
    animation-delay: 0.2s;
    border-top-color: var(--peacock-blue);
}

.result-card:nth-child(3) {
    animation-delay: 0.3s;
    border-top-color: var(--forest-green);
}

.result-card:nth-child(4) {
    animation-delay: 0.4s;
    border-top-color: var(--deep-orange);
}

.result-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding-bottom: 16px;
    border-bottom: 2px solid rgba(0, 0, 0, 0.05);
}

.card-header h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    color: var(--charcoal);
}

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

.card-content {
    font-size: 1rem;
    line-height: 1.7;
    color: #444;
}

.card-content h4 {
    color: var(--charcoal);
    margin-top: 16px;
    margin-bottom: 8px;
    font-size: 1.1rem;
}

.card-content ul {
    list-style: none;
    padding-left: 0;
}

.card-content li {
    padding: 8px 0 8px 24px;
    position: relative;
}

.card-content li::before {
    content: '▸';
    position: absolute;
    left: 0;
    color: var(--saffron);
    font-weight: bold;
}

.loading-spinner {
    width: 50px;
    height: 50px;
    margin: 40px auto;
    border: 4px solid rgba(255, 153, 51, 0.2);
    border-top-color: var(--saffron);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* Action Buttons */
.action-buttons {
    text-align: center;
}

.secondary-btn {
    padding: 16px 40px;
    background: white;
    color: var(--charcoal);
    border: 3px solid var(--saffron);
    border-radius: 50px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.secondary-btn:hover {
    background: var(--saffron);
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(255, 153, 51, 0.3);
}

/* Features Section */
.features-section {
    padding: 80px 0;
    background: linear-gradient(135deg, rgba(255, 153, 51, 0.05) 0%, rgba(19, 136, 8, 0.05) 100%);
}

.section-title {
    font-family: 'Playfair Display', serif;
    font-size: 3rem;
    text-align: center;
    margin-bottom: 60px;
    color: var(--charcoal);
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 32px;
}

.feature-card {
    text-align: center;
    padding: 40px 24px;
    background: white;
    border-radius: 20px;
    transition: all 0.3s ease;
    border: 2px solid transparent;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--saffron);
    box-shadow: 0 12px 40px rgba(255, 153, 51, 0.2);
}

.feature-icon {
    font-size: 4rem;
    margin-bottom: 20px;
}

.feature-card h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.5rem;
    margin-bottom: 12px;
    color: var(--charcoal);
}

.feature-card p {
    color: #666;
    line-height: 1.6;
}

/* Footer */
.footer {
    background: var(--charcoal);
    color: white;
    padding: 48px 0;
    margin-top: 80px;
}

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

.footer-brand h3 {
    font-family: 'Playfair Display', serif;
    font-size: 1.8rem;
    margin-bottom: 8px;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.footer-brand p {
    color: #aaa;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: white;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-links a:hover {
    color: var(--saffron);
}

/* Animations */
@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

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

@keyframes scaleIn {
    from {
        transform: scale(0.9);
        opacity: 0;
    }
    to {
        transform: scale(1);
        opacity: 1;
    }
}

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

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.1);
    }
}

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

@keyframes float {
    0%, 100% {
        transform: translateY(0) translateX(0);
    }
    33% {
        transform: translateY(-30px) translateX(20px);
    }
    66% {
        transform: translateY(30px) translateX(-20px);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .hero-title {
        font-size: 3rem;
    }
    
    .hero-subtitle {
        font-size: 1.1rem;
    }
    
    .upload-card {
        padding: 32px 24px;
    }
    
    .results-grid {
        grid-template-columns: 1fr;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
    
    .logo h1 {
        font-size: 2rem;
    }
}