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

:root {
    --bg-onyx: #0a0a0a;
    --gold: #d4af37;
    --gold-glow: rgba(212, 175, 55, 0.3);
    --navy: #1a2a4a;
    --white: #ffffff;
    --text-muted: #a0a0a0;
    --transition-slow: 0.8s cubic-bezier(0.25, 1, 0.5, 1);
}

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

body {
    background: var(--bg-onyx);
    color: var(--white);
    font-family: 'Inter', sans-serif;
    overflow-x: hidden;
    line-height: 1.6;
}

h1, h2, h3, .serif {
    font-family: 'Playfair Display', serif;
    font-weight: 700;
}

/* Premium Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    padding: 1.5rem 5%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    z-index: 1000;
    background: linear-gradient(to bottom, rgba(10,10,10,0.9), transparent);
    backdrop-filter: blur(5px);
}

.logo {
    font-size: 1rem;
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 700;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--white);
    text-decoration: none;
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    transition: var(--transition-slow);
}

.nav-links a:hover {
    color: var(--gold);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    text-align: center;
    position: relative;
    padding: 0 5%;
}

.hero-bg {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    opacity: 0.4;
    z-index: -1;
}

.hero h1 {
    font-size: clamp(2.5rem, 10vw, 6rem);
    margin-bottom: 0.5rem;
    opacity: 0;
    transform: translateY(30px);
    line-height: 1.1;
}

.hero p {
    font-size: clamp(0.8rem, 3vw, 1.2rem);
    letter-spacing: 2px;
    text-transform: uppercase;
    color: var(--gold);
    opacity: 0;
    transform: translateY(20px);
}

/* Page Transitions */
.transition-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--gold);
    z-index: 9999;
    transform: translateY(-100%);
}

/* Content Sections */
.section {
    min-height: 100vh;
    padding: 10rem 5%;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.section-title {
    font-size: clamp(2rem, 5vw, 4rem);
    margin-bottom: 2rem;
    color: var(--gold);
}

.media-container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    position: relative;
    overflow: hidden;
    border: 1px solid var(--gold-glow);
}

.media-container img {
    width: 100%;
    height: auto;
    display: block;
    filter: sepia(0.2) contrast(1.1);
}

/* Bengali Note Style */
.note-card {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--gold-glow);
    padding: 4rem;
    max-width: 800px;
    margin: 0 auto;
    position: relative;
}

.note-bengali {
    font-size: 2.2rem;
    line-height: 1.8;
    margin-bottom: 3rem;
    color: var(--gold);
}

.note-footer {
    text-align: right;
    font-style: italic;
    font-family: 'Playfair Display', serif;
}

/* Navigation Button (Hidden until scroll) */
.cta-button {
    margin-top: 3rem;
    padding: 1.2rem 3.5rem;
    border: 1px solid var(--gold);
    background: transparent;
    color: var(--gold);
    text-transform: uppercase;
    letter-spacing: 4px;
    cursor: pointer;
    transition: all 1s var(--transition-slow);
    text-decoration: none;
    opacity: 0;
    transform: translateY(20px);
    pointer-events: none;
    display: inline-block;
    visibility: hidden;
}

.cta-button.visible {
    opacity: 1;
    transform: translateY(0);
    pointer-events: all;
    visibility: visible;
}

.cta-button:hover {
    background: var(--gold);
    color: var(--bg-onyx);
}

/* Scroll Indicator */
.scroll-indicator {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    color: var(--gold);
    font-size: 0.7rem;
    letter-spacing: 3px;
    text-transform: uppercase;
    z-index: 100;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% { opacity: 0.3; transform: translateX(-50%) translateY(0); }
    50% { opacity: 1; transform: translateX(-50%) translateY(-10px); }
    100% { opacity: 0.3; transform: translateX(-50%) translateY(0); }
}

/* Responsive */
@media (max-width: 768px) {
    nav {
        padding: 1rem 5%;
        flex-direction: column;
        gap: 1rem;
        background: rgba(10,10,10,0.95);
    }
    
    .nav-links {
        gap: 1rem;
        flex-wrap: wrap;
        justify-content: center;
    }

    .section { padding: 6rem 5% 4rem; }
    
    .note-card { padding: 2rem 1.5rem; }
    .note-bengali { font-size: 1.25rem; line-height: 1.6; }
    
    .media-container {
        border-radius: 8px;
    }
}

@media (max-width: 480px) {
    .hero h1 { font-size: 2.2rem; }
    .nav-links a { font-size: 0.6rem; letter-spacing: 1px; }
}