:root {
    --bg-color: #0d0d12;
    --card-bg: rgba(255, 255, 255, 0.05);
    --accent-color: #00f2ff;
    --accent-secondary: #7000ff;
    --text-primary: #ffffff;
    --text-secondary: #a0a0ab;
    --glass-border: rgba(255, 255, 255, 0.1);
    --font-main: 'Outfit', 'Inter', sans-serif;
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: var(--font-main);
    overflow-x: hidden;
    line-height: 1.6;
}

/* Glassmorphism Utility */
.glass {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
}

/* Navigation */
nav {
    position: fixed;
    top: 0;
    width: 100%;
    height: 80px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0 5%;
    z-index: 1000;
    background: rgba(13, 13, 18, 0.8);
    backdrop-filter: blur(10px);
}

.logo {
    font-size: 1.5rem;
    font-weight: 800;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-secondary));
    background-clip: text;
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.nav-links {
    display: flex;
    gap: 30px;
    align-items: center;
}

.nav-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: 0.3s;
    font-weight: 500;
}

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

.lang-switch {
    background: var(--accent-secondary);
    color: white;
    padding: 8px 16px;
    border-radius: 30px;
    cursor: pointer;
    border: none;
    font-weight: 600;
    transition: 0.3s;
}

.lang-switch:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(112, 0, 255, 0.4);
}

/* Hero Section */
.hero {
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 0 5%;
    background: url('assets/hero-bg.webp') no-repeat center center/cover;
}

.hero::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(to bottom, rgba(13, 13, 18, 0.5), var(--bg-color));
}

.hero-content {
    position: relative;
    z-index: 10;
    max-width: 900px;
}

.hero-content h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 20px;
    font-weight: 900;
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
}

.glow-btn {
    padding: 15px 40px;
    font-size: 1.1rem;
    font-weight: 700;
    color: white;
    background: linear-gradient(45deg, var(--accent-color), var(--accent-secondary));
    border: none;
    border-radius: 50px;
    cursor: pointer;
    transition: 0.3s;
    text-decoration: none;
    display: inline-block;
}

.glow-btn:hover {
    transform: scale(1.05);
    box-shadow: 0 0 30px rgba(0, 242, 255, 0.5);
}

/* Sections */
section {
    padding: 100px 5%;
}

h2 {
    font-size: 3rem;
    text-align: center;
    margin-bottom: 60px;
    font-weight: 800;
}

/* Features */
.features-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.feature-card {
    padding: 40px;
    text-align: left;
    transition: 0.3s;
}

.feature-card:hover {
    transform: translateY(-10px);
    border-color: var(--accent-color);
}

.feature-icon {
    font-size: 3rem;
    margin-bottom: 20px;
}

/* Donation Section */
.donation-box {
    max-width: 800px;
    margin: 0 auto;
    padding: 60px;
    text-align: center;
}

.qr-container {
    display: flex;
    justify-content: center;
    gap: 50px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.qr-item {
    background: white;
    padding: 15px;
    border-radius: 15px;
    width: 200px;
}

.qr-item img {
    width: 100%;
    height: auto;
    border-radius: 10px;
}

.qr-label {
    margin-top: 15px;
    color: #333;
    font-weight: 700;
}

/* Footer */
footer {
    padding: 60px 5%;
    text-align: center;
    border-top: 1px solid var(--glass-border);
    color: var(--text-secondary);
}

/* Responsive */
@media (max-width: 768px) {
    .hero-content h1 {
        font-size: 2.8rem;
    }

    .nav-links {
        display: none;
        /* Mobile menu needed but simplified here */
    }
}

/* Animation classes */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: 1s all ease;
}

.reveal.active {
    opacity: 1;
    transform: translateY(0);
}