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

:root {
    --bg: #0a0a0f;
    --surface: #12121a;
    --surface-hover: #1a1a26;
    --border: #1e1e2e;
    --text: #e4e4ed;
    --text-muted: #8888a0;
    --accent: #6c5ce7;
    --accent-glow: rgba(108, 92, 231, 0.15);
    --accent2: #00cec9;
    --radius: 16px;
    --radius-sm: 10px;
}

html {
    scroll-behavior: smooth;
}

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

/* ─── ambient background ─── */
.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
    opacity: 0.25;
    z-index: 0;
    pointer-events: none;
}

.bg-gradient {
    position: fixed;
    top: -30vh;
    right: -20vw;
    width: 70vw;
    height: 70vh;
    background: radial-gradient(circle at center, var(--accent-glow) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

.bg-gradient-2 {
    position: fixed;
    bottom: -20vh;
    left: -10vw;
    width: 50vw;
    height: 50vh;
    background: radial-gradient(circle at center, rgba(0, 206, 201, 0.08) 0%, transparent 70%);
    z-index: 0;
    pointer-events: none;
}

/* ─── container ─── */
.container {
    position: relative;
    z-index: 1;
    max-width: 1000px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ─── navbar ─── */
nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px 0;
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    z-index: 100;
}

.logo {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.nav-links {
    display: flex;
    gap: 32px;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.3s;
    position: relative;
}

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

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

.nav-links a:hover::after {
    width: 100%;
}

/* ─── hero ─── */
.hero {
    padding: 80px 0 60px;
    text-align: center;
}

.avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 3rem;
    font-weight: 700;
    color: #fff;
    margin: 0 auto 28px;
    box-shadow: 0 0 60px var(--accent-glow);
    animation: float 6s ease-in-out infinite;
}

@keyframes float {
    0%,
    100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-12px);
    }
}

.hero h1 {
    font-size: 3.5rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    line-height: 1.1;
    margin-bottom: 12px;
    background: linear-gradient(to right, #fff, var(--text-muted));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero .title {
    font-size: 1.15rem;
    color: var(--accent);
    font-weight: 500;
    margin-bottom: 20px;
}

.hero p {
    max-width: 600px;
    margin: 0 auto 32px;
    color: var(--text-muted);
    font-size: 1.05rem;
}

.hero-badges {
    display: flex;
    justify-content: center;
    gap: 12px;
    flex-wrap: wrap;
}

.badge {
    padding: 8px 18px;
    border-radius: 999px;
    font-size: 0.8rem;
    font-weight: 500;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text-muted);
    transition: all 0.3s;
}

.badge:hover {
    border-color: var(--accent);
    color: var(--text);
    background: var(--surface-hover);
}

/* ─── section ─── */
section {
    padding: 80px 0;
}

.section-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.15em;
    color: var(--accent);
    font-weight: 600;
    margin-bottom: 8px;
}

.section-title {
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    margin-bottom: 40px;
}

/* ─── about ─── */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 40px;
}

.about-text {
    color: var(--text-muted);
    font-size: 1rem;
}

.about-text strong {
    color: var(--text);
}

.about-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    padding: 20px;
    text-align: center;
    transition: all 0.3s;
}

.stat-card:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent), var(--accent2));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-top: 4px;
}

/* ─── skills ─── */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
    gap: 12px;
}

.skill-tag {
    padding: 14px 20px;
    border-radius: var(--radius-sm);
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--text);
    font-size: 0.875rem;
    font-weight: 500;
    text-align: center;
    transition: all 0.3s;
    cursor: default;
}

.skill-tag:hover {
    border-color: var(--accent);
    background: var(--surface-hover);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow);
}

/* ─── projects ─── */
.projects-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.project-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    transition: all 0.4s;
    position: relative;
    overflow: hidden;
}

.project-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--accent), var(--accent2));
    opacity: 0;
    transition: opacity 0.4s;
}

.project-card:hover {
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
}

.project-card:hover::before {
    opacity: 1;
}

.project-icon {
    font-size: 1.5rem;
    margin-bottom: 12px;
}

.project-card h3 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 8px;
}

.project-card p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 16px;
}

.project-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.project-tags span {
    padding: 4px 12px;
    border-radius: 999px;
    font-size: 0.7rem;
    font-weight: 500;
    background: var(--accent-glow);
    color: var(--accent);
    border: 1px solid rgba(108, 92, 231, 0.2);
}

/* ─── contact ─── */
.contact-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 48px;
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.contact-card h3 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.contact-card p {
    color: var(--text-muted);
    margin-bottom: 28px;
}

.contact-links {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.contact-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 14px 28px;
    border-radius: var(--radius-sm);
    font-size: 0.9rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    border: 1px solid var(--border);
    background: var(--surface);
    color: var(--text);
}

.contact-btn.primary {
    background: linear-gradient(135deg, var(--accent), #5a4bd1);
    color: #fff;
    border: none;
}

.contact-btn.primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.contact-btn.outline:hover {
    border-color: var(--accent);
    transform: translateY(-2px);
}

/* ─── footer ─── */
footer {
    border-top: 1px solid var(--border);
    padding: 32px 0;
    text-align: center;
    color: var(--text-muted);
    font-size: 0.8rem;
}

/* ─── reveal animation ─── */
.reveal {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* ─── responsive ─── */
@media (max-width: 768px) {
    .hero h1 {
        font-size: 2.25rem;
    }

    .about-grid,
    .projects-grid {
        grid-template-columns: 1fr;
    }

    .nav-links {
        gap: 20px;
    }

    .about-stats {
        grid-template-columns: 1fr 1fr;
    }

    .contact-card {
        padding: 32px 20px;
    }
}

@media (max-width: 480px) {
    .hero {
        padding: 48px 0 40px;
    }

    .avatar {
        width: 96px;
        height: 96px;
        font-size: 2.25rem;
    }

    .hero h1 {
        font-size: 1.75rem;
    }

    .section-title {
        font-size: 1.5rem;
    }

    .skills-grid {
        grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
    }

    .nav-links a {
        font-size: 0.8rem;
    }
}