/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: var(--spacing-sm) 0;
    transition: background 0.3s, padding 0.3s;
}

header.scrolled {
    background: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    padding: var(--spacing-xs) 0;
    border-bottom: 1px solid var(--glass-border);
}

nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: var(--spacing-md);
}

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

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding-top: var(--spacing-lg);
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    opacity: 0.6;
    z-index: -1;
    filter: blur(60px);
}

.hero-content h1 {
    font-size: clamp(3rem, 8vw, 5rem);
    line-height: 1.1;
    margin-bottom: var(--spacing-sm);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto var(--spacing-md);
}

/* Features/About Section */
.section {
    padding: var(--spacing-xl) 0;
}

.section-title {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: var(--spacing-lg);
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: var(--spacing-md);
}

.card {
    padding: var(--spacing-md);
    transition: transform 0.3s;
}

.card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-primary);
}

.card-icon {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    color: var(--accent-primary);
}

.card h3 {
    margin-bottom: var(--spacing-xs);
}

.card p {
    color: var(--text-secondary);
}

/* Stats Section */
.stats-grid {
    display: flex;
    justify-content: space-around;
    text-align: center;
    flex-wrap: wrap;
    gap: var(--spacing-md);
}

.stat-number {
    font-size: 3.5rem;
    font-weight: 700;
    margin-bottom: var(--spacing-xs);
}

.stat-label {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Gallery Section */
.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: var(--spacing-md);
}

.gallery-item {
    overflow: hidden;
    position: relative;
    cursor: pointer;
}

.placeholder-img {
    width: 100%;
    height: 200px;
    background: linear-gradient(45deg, var(--bg-secondary), var(--glass-bg));
    transition: transform 0.5s;
}

.gallery-item:hover .placeholder-img {
    transform: scale(1.1);
}

.gallery-caption {
    position: absolute;
    bottom: 0;
    left: 0;
    width: 100%;
    padding: var(--spacing-sm);
    background: rgba(0, 0, 0, 0.7);
    color: white;
    transform: translateY(100%);
    transition: transform 0.3s;
}

.gallery-item:hover .gallery-caption {
    transform: translateY(0);
}

/* FAQ Section */
.accordion {
    max-width: 800px;
    margin: 0 auto;
}

.accordion-item {
    margin-bottom: var(--spacing-sm);
    overflow: hidden;
}

.accordion-header {
    padding: var(--spacing-md);
    display: flex;
    justify-content: space-between;
    align-items: center;
    cursor: pointer;
    background: rgba(255, 255, 255, 0.02);
    transition: background 0.3s;
}

.accordion-header:hover {
    background: rgba(255, 255, 255, 0.05);
}

.accordion-header h3 {
    margin: 0;
    font-size: 1.1rem;
}

.icon {
    font-size: 1.5rem;
    transition: transform 0.3s;
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease-out;
    padding: 0 var(--spacing-md);
}

.accordion-content p {
    padding: var(--spacing-sm) 0;
    color: var(--text-secondary);
}

.accordion-item.active .icon {
    transform: rotate(45deg);
    color: var(--accent-primary);
}

/* Footer */
footer {
    border-top: 1px solid var(--glass-border);
    padding: var(--spacing-lg) 0;
    text-align: center;
    color: var(--text-secondary);
}

/* Animations */
.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity 0.6s ease-out, transform 0.6s ease-out;
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 {
    transition-delay: 0.1s;
}

.delay-2 {
    transition-delay: 0.2s;
}

.delay-3 {
    transition-delay: 0.3s;
}

/* Join Page */
.join-page {
    min-height: 100vh;
    padding-top: 100px;
    /* Space for fixed header */
}

.form-container {
    max-width: 500px;
    margin: 0 auto;
    padding: var(--spacing-lg) var(--spacing-md);
}

.form-group {
    margin-bottom: var(--spacing-md);
    text-align: right;
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-xs);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-group input {
    width: 100%;
    padding: 12px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: white;
    font-family: var(--font-main);
    font-size: 1rem;
    transition: border-color 0.3s, background 0.3s;
}

.form-group input:focus {
    outline: none;
    border-color: var(--accent-primary);
    background: rgba(255, 255, 255, 0.1);
}

.btn-block {
    width: 100%;
    margin-top: var(--spacing-sm);
}