@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&display=swap');

:root {
    --bg-obsidian: #05070c;
    --bg-card: rgba(15, 18, 28, 0.75);
    --gold-primary: #d4af37;
    --gold-hover: #f3cf65;
    --gold-dark: #aa7c11;
    --gold-gradient: linear-gradient(135deg, #e5c060 0%, #b88d2f 50%, #906b1b 100%);
    --text-light: #f3f4f6;
    --text-muted: #9ca3af;
    --border-gold: rgba(212, 175, 55, 0.18);
    --border-light: rgba(255, 255, 255, 0.05);
    --font-serif: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
    --transition-premium: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    --gold-glow: 0 0 25px rgba(212, 175, 55, 0.2);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

html {
    scroll-behavior: smooth;
}

body {
    background-color: var(--bg-obsidian);
    color: var(--text-light);
    font-family: var(--font-sans);
    min-height: 100vh;
    overflow-x: hidden;
    background-image: 
        radial-gradient(circle at 5% 15%, rgba(212, 175, 55, 0.04) 0%, transparent 35%),
        radial-gradient(circle at 95% 85%, rgba(212, 175, 55, 0.04) 0%, transparent 35%);
    background-attachment: fixed;
    line-height: 1.6;
}

/* Header & Navigation */
header {
    background: rgba(5, 7, 12, 0.85);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--border-gold);
    position: sticky;
    top: 0;
    z-index: 100;
}

.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 1.25rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-family: var(--font-serif);
    font-size: 1.8rem;
    font-weight: 700;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    text-decoration: none;
    letter-spacing: 0.5px;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.logo span {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    font-weight: 600;
    color: #ffffff;
    border: 1px solid var(--gold-primary);
    padding: 0.25rem 0.6rem;
    border-radius: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-link {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-premium);
}

.nav-link:hover, .nav-link.active {
    color: var(--gold-primary);
    text-shadow: 0 0 10px rgba(212, 175, 55, 0.3);
}

.btn-gold {
    background: var(--gold-gradient);
    color: #0f121d;
    border: none;
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    font-family: var(--font-sans);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    transition: var(--transition-premium);
    box-shadow: 0 4px 15px rgba(212, 175, 55, 0.15);
}

.btn-gold:hover {
    transform: translateY(-2px);
    box-shadow: var(--gold-glow), 0 8px 25px rgba(212, 175, 55, 0.25);
    filter: brightness(1.1);
}

/* Hero Section */
.hero {
    min-height: 80vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 4rem 1.5rem;
    text-align: center;
    position: relative;
    border-bottom: 1px solid var(--border-light);
}

.hero-content {
    max-width: 800px;
    z-index: 2;
}

.hero-tagline {
    font-size: 0.9rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 3px;
    color: var(--gold-primary);
    margin-bottom: 1.5rem;
}

.hero h1 {
    font-family: var(--font-serif);
    font-size: 4rem;
    line-height: 1.15;
    font-weight: 600;
    margin-bottom: 1.5rem;
    background: linear-gradient(to right, #ffffff 40%, #f3cf65 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    color: var(--text-muted);
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 2.5rem;
}

.hero-cta {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
}

.btn-outline {
    background: transparent;
    color: var(--text-light);
    border: 1px solid var(--border-gold);
    padding: 0.75rem 1.5rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    transition: var(--transition-premium);
}

.btn-outline:hover {
    background: rgba(212, 175, 55, 0.06);
    border-color: var(--gold-hover);
    color: var(--gold-primary);
}

/* Main Container Grid */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 5rem 1.5rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-header h2 {
    font-family: var(--font-serif);
    font-size: 2.5rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.05rem;
    max-width: 500px;
    margin: 0 auto;
}

/* Portfolio Filters */
.portfolio-filters {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 3rem;
    flex-wrap: wrap;
}

.filter-btn {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    color: var(--text-muted);
    padding: 0.6rem 1.2rem;
    border-radius: 9999px;
    cursor: pointer;
    font-weight: 500;
    transition: var(--transition-premium);
}

.filter-btn:hover, .filter-btn.active {
    border-color: var(--gold-primary);
    color: var(--gold-primary);
    background: rgba(212, 175, 55, 0.05);
}

/* Portfolio Grid */
.portfolio-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 2.5rem;
}

.portfolio-item {
    background: var(--bg-card);
    border: 1px solid var(--border-light);
    border-radius: 16px;
    overflow: hidden;
    transition: var(--transition-premium);
    position: relative;
}

.portfolio-item:hover {
    transform: translateY(-8px);
    border-color: var(--border-gold);
    box-shadow: var(--gold-glow);
}

.portfolio-img-wrapper {
    position: relative;
    aspect-ratio: 1 / 1;
    overflow: hidden;
    background: linear-gradient(135deg, #161a26 0%, #0d0f17 100%);
    display: flex;
    align-items: center;
    justify-content: center;
}

.portfolio-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition-premium);
}

.portfolio-item:hover .portfolio-img {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(5, 7, 12, 0.9) 0%, rgba(5, 7, 12, 0.3) 50%, transparent 100%);
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    padding: 1.5rem;
    opacity: 0;
    transition: var(--transition-premium);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-info {
    padding: 1.5rem;
    border-top: 1px solid var(--border-light);
}

.portfolio-category {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--gold-primary);
    margin-bottom: 0.5rem;
}

.portfolio-title {
    font-family: var(--font-serif);
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.portfolio-desc {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Custom Design Order Form */
.order-section {
    background: linear-gradient(to bottom, #05070c 0%, #0c0f18 100%);
    border-top: 1px solid var(--border-light);
    border-bottom: 1px solid var(--border-light);
}

.form-container {
    max-width: 750px;
    margin: 0 auto;
    background: var(--bg-card);
    border: 1px solid var(--border-gold);
    border-radius: 24px;
    padding: 3rem 2.5rem;
    box-shadow: var(--gold-glow);
}

.form-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group-dynamic {
    display: none;
    opacity: 0;
    transform: translateY(-10px);
    transition: opacity 0.3s ease, transform 0.3s ease;
    flex-direction: column;
    gap: 0.5rem;
}

.form-group-dynamic.active {
    display: flex;
    opacity: 1;
    transform: translateY(0);
}

.form-group.full-width, .form-group-dynamic.full-width {
    grid-column: span 2;
}

.form-label {
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-light);
}

.form-input, .form-select, .form-textarea {
    background: rgba(5, 7, 12, 0.6);
    border: 1px solid var(--border-light);
    color: var(--text-light);
    padding: 0.85rem 1rem;
    border-radius: 8px;
    outline: none;
    font-family: var(--font-sans);
    font-size: 0.95rem;
    transition: var(--transition-premium);
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
    border-color: var(--gold-primary);
    box-shadow: 0 0 10px rgba(212, 175, 55, 0.1);
}

.form-textarea {
    resize: none;
    height: 120px;
}

.file-upload-wrapper {
    border: 2px dashed var(--border-light);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    cursor: pointer;
    background: rgba(5, 7, 12, 0.3);
    transition: var(--transition-premium);
}

.file-upload-wrapper:hover {
    border-color: var(--gold-primary);
    background: rgba(212, 175, 55, 0.02);
}

.file-upload-wrapper i {
    font-size: 2rem;
    color: var(--gold-primary);
    margin-bottom: 0.5rem;
}

.file-upload-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

.form-submit-btn {
    width: 100%;
    padding: 1rem;
    font-size: 1.05rem;
}

/* Book Banner Corner */
.book-banner {
    background: linear-gradient(135deg, #090e17 0%, #151d2d 100%);
    border: 1px solid var(--border-gold);
    border-radius: 20px;
    padding: 3.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 3rem;
    margin-top: 2rem;
    position: relative;
    overflow: hidden;
}

.book-banner::before {
    content: '';
    position: absolute;
    right: -50px;
    bottom: -50px;
    width: 250px;
    height: 250px;
    background: radial-gradient(circle, rgba(212, 175, 55, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.book-banner-content {
    max-width: 60%;
}

.book-banner h3 {
    font-family: var(--font-serif);
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 1rem;
}

.book-banner p {
    color: var(--text-muted);
    font-size: 1.05rem;
    margin-bottom: 2rem;
}

.book-banner-graphic {
    font-size: 6rem;
    background: var(--gold-gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    opacity: 0.85;
    animation: pulse 3s infinite ease-in-out;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); filter: drop-shadow(0 0 10px rgba(212, 175, 55, 0.1)); }
    50% { transform: scale(1.05); filter: drop-shadow(0 0 25px rgba(212, 175, 55, 0.3)); }
}

/* Footer */
footer {
    border-top: 1px solid var(--border-light);
    padding: 3rem 1.5rem;
    text-align: center;
    background: #030408;
}

.footer-logo {
    font-family: var(--font-serif);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--gold-primary);
    margin-bottom: 1rem;
}

.footer-text {
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* Floating WhatsApp Button */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    background-color: #25d366;
    color: #ffffff;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    box-shadow: 0 4px 15px rgba(0, 0, 0, 0.4);
    z-index: 99;
    text-decoration: none;
    transition: var(--transition-premium);
}

.whatsapp-float:hover {
    transform: scale(1.1) rotate(5deg);
    box-shadow: 0 8px 25px rgba(37, 211, 102, 0.4);
}

/* Responsive Styles */
@media (max-width: 768px) {
    .nav-links {
        display: none; /* Mobile side-nav can be added, kept simple */
    }
    
    .hero h1 {
        font-size: 2.8rem;
    }
    
    .form-grid {
        grid-template-columns: 1fr;
    }
    
    .form-group.full-width {
        grid-column: span 1;
    }
    
    .form-container {
        padding: 2rem 1.5rem;
    }
    
    .book-banner {
        flex-direction: column;
        padding: 2rem;
        text-align: center;
        gap: 2rem;
    }
    
    .book-banner-content {
        max-width: 100%;
    }
    
    .book-banner-graphic {
        font-size: 4.5rem;
    }
}

/* FAQ Details/Summary Styles */
details.faq-item {
    transition: var(--transition-premium);
}

details.faq-item:hover {
    border-color: var(--gold-primary);
    box-shadow: var(--gold-glow);
}

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

details[open].faq-item summary i {
    transform: rotate(180deg);
    color: var(--gold-primary);
}

details.faq-item p {
    animation: fadeDownFAQ 0.3s ease;
}

@keyframes fadeDownFAQ {
    from { opacity: 0; transform: translateY(-5px); }
    to { opacity: 1; transform: translateY(0); }
}