:root {
    --bg: #09090b;
    --surface: #0f0f12;
    --surface-2: #16161a;
    --surface-3: #1c1c21;
    --border: rgba(255, 255, 255, 0.06);
    --border-hover: rgba(255, 255, 255, 0.12);
    --accent: #6366f1;
    --accent-2: #a855f7;
    --accent-glow: rgba(99, 102, 241, 0.15);
    --text: #fafafa;
    --text-2: #d4d4d8;
    --text-muted: #71717a;
    --green: #22c55e;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
    --mono: 'JetBrains Mono', 'Fira Code', monospace;
    --radius: 14px;
    --radius-sm: 8px;
    --max-w: 1100px;
    --transition: 0.25s cubic-bezier(.4,0,.2,1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0 }
html { scroll-behavior: smooth; scroll-padding-top: 5rem }

body {
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block }
a { color: inherit; text-decoration: none }
ul { list-style: none }
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 5% }
.text-gradient { background: linear-gradient(135deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text }

/* NAV */
.nav {
    position: sticky; top: 0; z-index: 100;
    display: flex; align-items: center; justify-content: space-between;
    padding: 0.85rem 5%;
    background: rgba(9, 9, 11, 0.8);
    backdrop-filter: blur(16px) saturate(180%);
    border-bottom: 1px solid var(--border);
}
.nav__brand { font-family: var(--mono); font-weight: 600; font-size: 1rem; color: var(--accent) }
.nav__links { display: flex; gap: 2rem }
.nav__links a { font-size: 0.82rem; font-weight: 500; color: var(--text-muted); transition: color var(--transition); position: relative }
.nav__links a:hover { color: var(--text) }
.nav__links a::after { content:''; position:absolute; bottom:-2px; left:0; width:0; height:2px; background:var(--accent); transition:width var(--transition) }
.nav__links a:hover::after { width:100% }

/* HERO */
.hero {
    position: relative;
    display: flex; align-items: center; justify-content: center; gap: 4rem;
    min-height: 92vh; padding: 4rem 5%;
    max-width: var(--max-w); margin: 0 auto;
    overflow: hidden;
}
.hero__bg-grid {
    position: absolute; inset: 0; z-index: 0;
    background-image:
        linear-gradient(var(--border) 1px, transparent 1px),
        linear-gradient(90deg, var(--border) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 40%, transparent 100%);
    -webkit-mask-image: radial-gradient(ellipse 60% 50% at 50% 50%, black 40%, transparent 100%);
}
.hero__content { position: relative; z-index: 1; max-width: 500px }
.hero__visual { position: relative; z-index: 1; flex-shrink: 0 }

.hero__badge {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-family: var(--mono); font-size: 0.72rem; font-weight: 500;
    padding: 0.3rem 0.75rem; border-radius: 999px;
    background: rgba(34, 197, 94, 0.1); border: 1px solid rgba(34, 197, 94, 0.25);
    color: var(--green); margin-bottom: 1.25rem;
}
.hero__badge::before { content: ''; width: 6px; height: 6px; border-radius: 50%; background: var(--green); animation: pulse 2s ease-in-out infinite }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:0.4} }

.hero__greeting { font-size: 0.95rem; color: var(--text-muted); margin-bottom: 0.25rem }
.hero__name { font-size: clamp(2.2rem, 5vw, 3.4rem); font-weight: 800; line-height: 1.1; margin-bottom: 0.4rem }
.hero__role { font-family: var(--mono); font-size: 0.95rem; color: var(--accent); margin-bottom: 0.85rem }
.hero__tagline { font-size: 1rem; color: var(--text-2); margin-bottom: 1.75rem; line-height: 1.6 }

.hero__cta { display: flex; gap: 0.75rem; flex-wrap: wrap; margin-bottom: 1.75rem }

.btn {
    font-family: var(--mono); font-size: 0.82rem; font-weight: 500;
    padding: 0.65rem 1.3rem; border-radius: var(--radius-sm);
    cursor: pointer; transition: all var(--transition); border: none;
    display: inline-flex; align-items: center; gap: 0.5rem;
}
.btn--primary { background: var(--accent); color: #fff }
.btn--primary:hover { background: #4f46e5; transform: translateY(-1px); box-shadow: 0 8px 24px var(--accent-glow) }
.btn--ghost { background: transparent; color: var(--text-muted); border: 1px solid var(--border) }
.btn--ghost:hover { border-color: var(--text-muted); color: var(--text) }

.hero__social { display: flex; gap: 0.85rem }
.hero__social a { color: var(--text-muted); font-size: 1.25rem; transition: color var(--transition) }
.hero__social a:hover { color: var(--text) }

/* AVATAR + ORBIT */
.hero__avatar-ring {
    position: relative;
    width: 300px; height: 300px; border-radius: 50%; padding: 3px;
}

.hero__avatar-ring::before {
    content: '';
    position: absolute; inset: -6px; border-radius: 50%;
    background: conic-gradient(var(--accent), var(--accent-2), transparent 40%, var(--accent));
    animation: ring-spin 3s linear infinite;
    filter: blur(2px);
}

@keyframes ring-spin { to { rotate: 360deg } }

.hero__avatar-ring img {
    position: relative; z-index: 1;
    width: 100%; height: 100%; border-radius: 50%;
    object-fit: cover; background: var(--bg);
}

.hero__orbit { position: absolute; font-size: 1.5rem; color: var(--text-muted); animation: orbit-float 4s ease-in-out infinite }
.hero__orbit--1 { top: 5%; right: -10%; animation-delay: 0s }
.hero__orbit--2 { bottom: 10%; right: -5%; animation-delay: 1s }
.hero__orbit--3 { top: -5%; left: 10%; animation-delay: 2s }
.hero__orbit--4 { bottom: 0; left: -5%; animation-delay: 3s }
@keyframes orbit-float { 0%,100%{transform:translateY(0)} 50%{transform:translateY(-12px)} }

/* TECH MARQUEE */
.tech-marquee {
    background: var(--surface); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border);
    padding: 1rem 0; overflow: hidden;
}
.tech-marquee__track { overflow: hidden; white-space: nowrap }
.tech-marquee__inner {
    display: inline-flex; gap: 2.5rem; animation: marquee 30s linear infinite;
    padding: 0.5rem 0;
}
.tech-marquee__inner span {
    display: inline-flex; align-items: center; gap: 0.4rem;
    font-family: var(--mono); font-size: 0.78rem; color: var(--text-muted);
    white-space: nowrap; flex-shrink: 0;
}
.tech-marquee__inner i { font-size: 1.1rem }
@keyframes marquee { to { transform: translateX(-50%) } }

/* SECTIONS */
.section-title { font-size: clamp(1.5rem, 3vw, 2.1rem); font-weight: 700; text-align: center; margin-bottom: 0.5rem }
.section-subtitle { text-align: center; color: var(--text-muted); font-size: 0.92rem; margin-bottom: 2.5rem; max-width: 34rem; margin-left: auto; margin-right: auto }

/* ABOUT */
.about { padding: 5rem 0 }
.about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-top: 2rem }
.about__text p { color: var(--text-2); font-size: 0.92rem; line-height: 1.75; margin-bottom: 1rem }
.about__cards { display: flex; flex-direction: column; gap: 0.85rem }

.about__card {
    padding: 1.15rem 1.25rem; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); transition: border-color var(--transition), background var(--transition);
}
.about__card:hover { border-color: var(--accent); background: var(--surface-2) }
.about__card-icon { font-size: 1.35rem; color: var(--accent); margin-bottom: 0.35rem; display: block }
.about__card h3 { font-size: 0.88rem; font-weight: 600; margin-bottom: 0.2rem }
.about__card p { font-size: 0.8rem; color: var(--text-muted); line-height: 1.5 }

/* EXPERIENCE TIMELINE */
.experience { padding: 4rem 0 5rem; background: var(--surface) }
.timeline { max-width: 650px; margin: 2rem auto 0; position: relative; padding-left: 2rem }
.timeline::before { content:''; position:absolute; left:7px; top:0; bottom:0; width:2px; background:var(--border) }

.timeline__item { position: relative; margin-bottom: 2rem }
.timeline__dot {
    position: absolute; left: -2rem; top: 6px; width: 16px; height: 16px;
    border-radius: 50%; background: var(--accent); border: 3px solid var(--bg);
}
.timeline__dot--edu { background: var(--accent-2) }

.timeline__content { padding-left: 0.5rem }
.timeline__header { display: flex; align-items: baseline; justify-content: space-between; gap: 1rem; flex-wrap: wrap }
.timeline__header h3 { font-size: 1rem; font-weight: 600 }
.timeline__date { font-family: var(--mono); font-size: 0.72rem; color: var(--accent); white-space: nowrap }
.timeline__company { font-size: 0.82rem; color: var(--text-muted); margin-bottom: 0.5rem }
.timeline__list { padding-left: 1.1rem; list-style: disc }
.timeline__list li { font-size: 0.82rem; color: var(--text-2); line-height: 1.65; margin-bottom: 0.25rem }

/* SKILLS */
.skills-section { padding: 4rem 0 5rem }
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 1.25rem; margin-top: 2rem }

.skill-group {
    padding: 1.25rem; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); transition: border-color var(--transition);
}
.skill-group:hover { border-color: var(--accent) }
.skill-group h3 { font-size: 0.78rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.08em; color: var(--accent); margin-bottom: 0.75rem }
.skill-group__items { display: flex; flex-wrap: wrap; gap: 0.4rem }
.skill-group__items span {
    font-family: var(--mono); font-size: 0.72rem;
    padding: 0.25rem 0.6rem; border-radius: 6px;
    background: var(--surface-2); color: var(--text-2);
    display: inline-flex; align-items: center; gap: 0.3rem;
    transition: all var(--transition);
}
.skill-group__items span:hover { background: var(--accent-glow); color: var(--text) }
.skill-group__items i { font-size: 0.85rem }

/* PROJECTS */
.projects { padding: 4rem 0 5rem; background: var(--surface) }

.project-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); gap: 1.5rem; margin-top: 1rem }

.project-card {
    display: flex; flex-direction: column;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
    transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
}
.project-card:hover { border-color: rgba(99, 102, 241, 0.3); transform: translateY(-4px); box-shadow: 0 16px 48px rgba(0, 0, 0, 0.5) }

.project-card__preview { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: #050507 }
.project-card__preview iframe { border: 0; width: 200%; height: 200%; transform: scale(0.5); transform-origin: top left; pointer-events: none }

.project-card__preview-cta {
    position: absolute; inset: 0;
    display: flex; align-items: flex-end; justify-content: center; gap: 0.35rem;
    padding-bottom: 1rem;
    background: linear-gradient(transparent 45%, rgba(0, 0, 0, 0.85));
    font-family: var(--mono); font-size: 0.78rem; color: #fff;
    opacity: 0; transition: opacity var(--transition);
}
.project-card__preview:hover .project-card__preview-cta { opacity: 1 }

.project-card__body { padding: 1.25rem 1.35rem; flex: 1; display: flex; flex-direction: column }
.project-card__label { font-family: var(--mono); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); margin-bottom: 0.3rem }
.project-card__title { font-size: 1.08rem; font-weight: 600; margin-bottom: 0.45rem }
.project-card__desc { font-size: 0.85rem; color: var(--text-muted); line-height: 1.65; margin-bottom: 0.85rem }
.project-card__tags { display: flex; flex-wrap: wrap; gap: 0.35rem; margin-bottom: 0.85rem }
.project-card__tags li { font-family: var(--mono); font-size: 0.66rem; padding: 0.2rem 0.5rem; border-radius: 4px; background: var(--surface-2); color: var(--text-muted); display: inline-flex; align-items: center; gap: 0.25rem }
.project-card__tags i { font-size: 0.75rem }

.project-card__links { margin-top: auto }
.project-card__links a {
    font-family: var(--mono); font-size: 0.78rem; color: var(--accent);
    padding: 0.4rem 0.8rem; border: 1px solid rgba(99, 102, 241, 0.3); border-radius: 6px;
    display: inline-flex; align-items: center; gap: 0.4rem;
    transition: background var(--transition);
}
.project-card__links a:hover { background: var(--accent-glow) }

/* CONTACT */
.contact { padding: 5rem 0; text-align: center }
.contact__email-btn {
    display: inline-block; margin-top: 1rem;
    font-family: var(--mono); font-size: 1.1rem; color: var(--text);
    padding: 0.85rem 2rem; border-radius: var(--radius-sm);
    border: 1px solid var(--border); background: var(--surface);
    transition: all var(--transition);
}
.contact__email-btn:hover { border-color: var(--accent); box-shadow: 0 0 24px var(--accent-glow) }
.contact__links { display: flex; gap: 1.5rem; justify-content: center; margin-top: 1.25rem }
.contact__links a { font-size: 0.88rem; color: var(--text-muted); display: inline-flex; align-items: center; gap: 0.4rem; transition: color var(--transition) }
.contact__links a:hover { color: var(--text) }

/* FOOTER */
.footer { padding: 2rem 5%; text-align: center; border-top: 1px solid var(--border) }
.footer p { font-family: var(--mono); font-size: 0.72rem; color: var(--text-muted) }

/* RESPONSIVE */
@media (max-width: 768px) {
    .hero { flex-direction: column-reverse; text-align: center; gap: 2rem; min-height: auto; padding-top: 3rem }
    .hero__content { max-width: 100% }
    .hero__cta, .hero__social { justify-content: center }
    .hero__avatar-ring { width: 200px; height: 200px }
    .hero__orbit { display: none }
    .nav__links { gap: 1rem }
    .nav__links a { font-size: 0.75rem }
    .about__grid { grid-template-columns: 1fr; gap: 2rem }
    .project-grid { grid-template-columns: 1fr }
    .skills-grid { grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)) }
}

@media (max-width: 480px) {
    .hero__avatar-ring { width: 160px; height: 160px }
    .btn { padding: 0.55rem 1rem; font-size: 0.78rem }
    .nav { padding: 0.5rem 4% }
    .nav__links { gap: 0.75rem }
}