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

:root {
    --bg-primary: #0d1117;
    --bg-secondary: #161b22;
    --bg-card: #1c2333;
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent: #a78bfa;
    --accent-hover: #c4b5fd;
    --accent-green: #4ade80;
    --border: #30363d;
    --gradient: linear-gradient(135deg, #a78bfa, #4ade80);
    --card-hover: #1e2535;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Noto Sans SC', sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.8;
    overflow-x: hidden;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-title {
    font-size: 2rem;
    text-align: center;
    margin-bottom: 3rem;
    color: var(--text-primary);
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    background: rgba(13, 17, 23, 0.85);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border);
    transition: background 0.3s;
}

.navbar.scrolled {
    background: rgba(13, 17, 23, 0.95);
}

.nav-container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.nav-logo {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--accent);
    text-decoration: none;
    letter-spacing: 2px;
}

.nav-menu {
    display: flex;
    list-style: none;
    gap: 2rem;
}

.nav-menu a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.95rem;
    transition: color 0.3s;
    position: relative;
}

.nav-menu a:hover,
.nav-menu a.active {
    color: var(--accent);
}

.nav-menu a::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--accent);
    transition: width 0.3s;
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
    width: 100%;
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    cursor: pointer;
}

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: 0.3s;
}

/* Hero */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    position: relative;
    padding: 2rem;
    background: radial-gradient(ellipse at center, rgba(78, 205, 128, 0.08) 0%, rgba(167, 139, 250, 0.06) 50%, transparent 70%);
}

.hero-content {
    max-width: 700px;
}

.hero-greeting {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.hero-name {
    font-size: 3.5rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
    background: var(--gradient);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-title {
    font-size: 1.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
    letter-spacing: 4px;
}

.hero-desc {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 2rem;
}

.hero-btns {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.btn {
    display: inline-block;
    padding: 0.8rem 1.8rem;
    border-radius: 8px;
    font-size: 1rem;
    text-decoration: none;
    cursor: pointer;
    transition: all 0.3s;
    border: none;
}

.btn-primary {
    background: var(--accent);
    color: white;
    box-shadow: 0 4px 15px rgba(167, 139, 250, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(167, 139, 250, 0.4);
}

.btn-outline {
    border: 2px solid var(--accent-green);
    color: var(--accent-green);
    background: transparent;
}

.btn-outline:hover {
    background: var(--accent-green);
    color: #0d1117;
}

.hero-scroll {
    position: absolute;
    bottom: 2rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
    font-size: 0.85rem;
    animation: bounce 2s infinite;
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-8px); }
    60% { transform: translateY(-4px); }
}

/* About */
.about {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.about-content {
    max-width: 750px;
    margin: 0 auto;
}

.about-text p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    font-size: 1.05rem;
    text-indent: 2em;
}

.about-info {
    margin-top: 2rem;
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    text-indent: 0;
}

.info-item {
    color: var(--text-secondary);
}

.info-label {
    color: var(--accent);
    font-weight: 600;
}

/* Metaphysics */
.metaphysics {
    padding: 6rem 0;
}

.meta-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.meta-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s, background 0.3s;
}

.meta-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent);
    background: var(--card-hover);
}

.meta-icon {
    font-size: 2.5rem;
    color: var(--accent);
    margin-bottom: 1rem;
}

.meta-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.meta-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
}

/* Environment */
.environment {
    padding: 6rem 0;
    background: var(--bg-secondary);
}

.env-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 1.5rem;
}

.env-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem 1.5rem;
    text-align: center;
    transition: transform 0.3s, border-color 0.3s, background 0.3s;
}

.env-card:hover {
    transform: translateY(-4px);
    border-color: var(--accent-green);
    background: var(--card-hover);
}

.env-icon {
    font-size: 2.5rem;
    color: var(--accent-green);
    margin-bottom: 1rem;
}

.env-card h3 {
    font-size: 1.15rem;
    margin-bottom: 0.8rem;
    color: var(--text-primary);
}

.env-card p {
    color: var(--text-secondary);
    font-size: 0.92rem;
}

/* Contact */
.contact {
    padding: 6rem 0;
}

.contact-content {
    max-width: 500px;
    margin: 0 auto;
}

.contact-info p {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.contact-links {
    display: flex;
    flex-direction: column;
    gap: 0.8rem;
    margin-top: 1.5rem;
}

.contact-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
    display: flex;
    align-items: center;
    gap: 0.6rem;
}

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

/* Footer */
.footer {
    padding: 2rem 0;
    text-align: center;
    border-top: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Responsive */
@media (max-width: 768px) {
    .hero-name {
        font-size: 2.5rem;
    }

    .hero-title {
        font-size: 1.2rem;
        letter-spacing: 2px;
    }

    .nav-menu {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-primary);
        flex-direction: column;
        align-items: center;
        padding: 1.5rem 0;
        gap: 1.2rem;
        transform: translateY(-150%);
        transition: transform 0.3s;
        border-bottom: 1px solid var(--border);
    }

    .nav-menu.active {
        transform: translateY(0);
    }

    .nav-toggle {
        display: flex;
    }
}