:root {
    --bg-dark: #0a0a0f;
    --text-main: #f0f0f5;
    --text-muted: #a0a0b0;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --gradient-primary: linear-gradient(135deg, var(--accent-blue), var(--accent-purple));
    --glass-bg: rgba(255, 255, 255, 0.03);
    --glass-border: rgba(255, 255, 255, 0.08);
}

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

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

h1, h2, h3, h4, .logo {
    font-family: 'Outfit', sans-serif;
}

/* Navbar */
.navbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 5%;
    position: fixed;
    top: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(10, 10, 15, 0.7);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--glass-border);
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: -0.5px;
}

.logo span {
    color: var(--accent-blue);
}

.navbar ul {
    list-style: none;
    display: flex;
    gap: 2rem;
    align-items: center;
}

.navbar a {
    text-decoration: none;
    color: var(--text-main);
    font-weight: 500;
    transition: color 0.3s ease;
}

.navbar a:hover {
    color: var(--accent-blue);
}

.nav-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 0.5rem 1.2rem;
    border-radius: 20px;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: var(--glass-border);
    border-color: var(--accent-blue);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 5%;
    position: relative;
    background-image: url('assets/images/hero_bg.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0; left: 0; width: 100%; height: 100%;
    background: linear-gradient(to right, rgba(10,10,15,0.95) 0%, rgba(10,10,15,0.7) 100%);
    z-index: 1;
}

.hero-content {
    position: relative;
    z-index: 2;
    max-width: 600px;
}

.hero h1 {
    font-size: 4rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
}

.highlight {
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero p {
    font-size: 1.2rem;
    color: var(--text-muted);
    margin-bottom: 2.5rem;
}

.hero-buttons {
    display: flex;
    gap: 1.5rem;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.8rem;
    border-radius: 30px;
    text-decoration: none;
    font-weight: 600;
    font-size: 1.1rem;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.primary-btn {
    background: var(--gradient-primary);
    color: #fff;
    box-shadow: 0 10px 20px rgba(59, 130, 246, 0.3);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 15px 25px rgba(59, 130, 246, 0.4);
}

.secondary-btn {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-main);
    backdrop-filter: blur(10px);
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-3px);
}

/* Glass Cards Graphic */
.hero-graphics {
    position: relative;
    z-index: 2;
    width: 500px;
    height: 500px;
    perspective: 1000px;
}

.glass-card {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: 20px;
    padding: 2rem;
    position: absolute;
    box-shadow: 0 25px 40px rgba(0, 0, 0, 0.5);
    transition: transform 0.5s ease;
}

.main-card {
    width: 300px;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) rotateY(-15deg);
    z-index: 3;
}

.sub-card-1 {
    width: 200px;
    top: 15%;
    left: 10%;
    transform: rotateY(-10deg) translateZ(-50px);
    z-index: 2;
    opacity: 0.8;
}

.sub-card-2 {
    width: 220px;
    bottom: 20%;
    right: 0;
    transform: rotateY(-20deg) translateZ(-80px);
    z-index: 1;
    opacity: 0.6;
}

.card-icon {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* About Section */
.about {
    padding: 6rem 5%;
    background-color: var(--bg-dark);
}

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

.about h2 {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
}

.about-text p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 1.5rem;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.feature {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    padding: 1.5rem;
    border-radius: 15px;
    transition: transform 0.3s ease;
}

.feature:hover {
    transform: translateY(-5px);
    border-color: rgba(139, 92, 246, 0.4);
}

.feature h4 {
    font-size: 1.2rem;
    color: var(--accent-blue);
    margin-bottom: 0.5rem;
}

.feature p {
    color: var(--text-muted);
}

/* Footer */
footer {
    padding: 3rem 5%;
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-content .logo {
    margin-bottom: 1rem;
}

.footer-content p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

@media (max-width: 768px) {
    .hero {
        flex-direction: column;
        justify-content: center;
        text-align: center;
        padding-top: 6rem;
    }
    .hero h1 { font-size: 2.5rem; }
    .hero-graphics { display: none; }
    .hero-buttons { justify-content: center; }
    .about-grid { grid-template-columns: 1fr; gap: 2rem; }
}