/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --bg:       #080810;
    --surface:  rgba(255,255,255,0.04);
    --border:   rgba(255,255,255,0.08);
    --purple:   #7c3aed;
    --blue:     #3b82f6;
    --pink:     #ec4899;
    --text:     #f1f5f9;
    --muted:    #64748b;
    --font:     'Space Grotesk', sans-serif;
    --mono:     'Space Mono', monospace;
}

html { font-size: 16px; }

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--bg);
    overflow: hidden;
    -webkit-user-select: none;
    -moz-user-select: none;
    user-select: none;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ── Side nav dots ─────────────────────────────────────────── */
.sidenav {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 100;
}

.dot {
    position: relative;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--border);
    border: 1px solid var(--muted);
    transition: background 0.3s, transform 0.3s;
    display: block;
}

.dot::after {
    content: attr(data-label);
    position: absolute;
    right: 1.5rem;
    top: 50%;
    transform: translateY(-50%);
    font-size: 0.7rem;
    font-family: var(--mono);
    color: var(--muted);
    white-space: nowrap;
    opacity: 0;
    transition: opacity 0.2s;
    pointer-events: none;
}

.dot:hover::after, .dot.active::after { opacity: 1; }

.dot.active {
    background: var(--purple);
    border-color: var(--purple);
    transform: scale(1.4);
    box-shadow: 0 0 10px var(--purple);
}

.dot:hover { background: var(--muted); transform: scale(1.2); }

/* ── Scroll container ──────────────────────────────────────── */
.scroll-container {
    position: fixed;
    inset: 0;
    overflow-y: scroll;
    scroll-snap-type: y mandatory;
    scroll-behavior: smooth;
    z-index: 10;
    scrollbar-width: none;
}
.scroll-container::-webkit-scrollbar { display: none; }

/* ── Sections ──────────────────────────────────────────────── */
.section {
    height: 100vh;
    min-height: 100vh;
    scroll-snap-align: start;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 2rem;
}

/* ── HOME ──────────────────────────────────────────────────── */
.hero-content {
    background: rgba(8,8,16,0.55);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(124,58,237,0.15);
    border-radius: 1.5rem;
    padding: 3rem 3.5rem;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 1.2rem;
}

.hero-eyebrow {
    font-family: var(--mono);
    font-size: 0.9rem;
    color: var(--muted);
    letter-spacing: 0.15em;
    text-transform: lowercase;
}

.hero-name {
    font-size: clamp(3.5rem, 10vw, 7rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(135deg, #a78bfa 0%, #60a5fa 40%, #f472b6 80%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    animation: gradShift 6s ease-in-out infinite;
    background-size: 200% 200%;
}

@keyframes gradShift {
    0%, 100% { background-position: 0% 50%; }
    50%       { background-position: 100% 50%; }
}

.hero-roles {
    font-family: var(--mono);
    font-size: clamp(0.85rem, 2vw, 1.1rem);
    color: var(--muted);
    display: flex;
    align-items: center;
    gap: 0;
    min-height: 1.6em;
}

.typewriter {
    color: var(--text);
    border-right: 2px solid var(--purple);
    padding-right: 2px;
    animation: blink 0.8s step-end infinite;
    white-space: nowrap;
    overflow: hidden;
}

@keyframes blink {
    0%, 100% { border-color: var(--purple); }
    50%       { border-color: transparent; }
}

.hero-links {
    display: flex;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-top: 0.5rem;
}

.link-pill {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.55rem 1.1rem;
    border-radius: 999px;
    background: var(--surface);
    border: 1px solid var(--border);
    font-size: 0.85rem;
    font-weight: 500;
    transition: background 0.2s, border-color 0.2s, transform 0.15s;
    backdrop-filter: blur(8px);
    position: relative;
}

.link-pill img { width: 18px; height: 18px; object-fit: contain; }

.link-pill:hover {
    background: rgba(124,58,237,0.15);
    border-color: var(--purple);
    transform: translateY(-2px);
}

.copy-hint {
    font-family: var(--mono);
    font-size: 0.75rem;
    color: var(--muted);
    margin-left: 0.25rem;
}

.hero-clock {
    font-family: var(--mono);
    font-size: 0.8rem;
    color: var(--muted);
    letter-spacing: 0.1em;
    margin-top: 0.5rem;
}

.scroll-hint {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    animation: fadeUp 2s ease-in-out infinite;
}

.scroll-hint span {
    font-family: var(--mono);
    font-size: 0.65rem;
    color: var(--muted);
    letter-spacing: 0.2em;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 2.5rem;
    background: linear-gradient(to bottom, var(--muted), transparent);
}

@keyframes fadeUp {
    0%, 100% { opacity: 0.4; transform: translateX(-50%) translateY(0); }
    50%       { opacity: 1;   transform: translateX(-50%) translateY(6px); }
}

/* ── Section shared ────────────────────────────────────────── */
.section-inner {
    width: 100%;
    max-width: 800px;
    display: flex;
    flex-direction: column;
    gap: 2rem;
    background: rgba(8,8,16,0.6);
    backdrop-filter: blur(14px);
    -webkit-backdrop-filter: blur(14px);
    border: 1px solid rgba(124,58,237,0.12);
    border-radius: 1.5rem;
    padding: 2.5rem 3rem;
}

.section-title {
    font-size: clamp(2rem, 5vw, 3rem);
    font-weight: 700;
    letter-spacing: -0.02em;
    background: linear-gradient(90deg, var(--text) 60%, var(--purple));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

/* ── Reveal animation ──────────────────────────────────────── */
.reveal {
    opacity: 0;
    transform: translateY(28px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

.reveal.visible {
    opacity: 1;
    transform: none;
}

.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.18s; }
.reveal:nth-child(4) { transition-delay: 0.26s; }
.reveal:nth-child(5) { transition-delay: 0.34s; }

/* ── ABOUT ─────────────────────────────────────────────────── */
.about-bio {
    font-size: 1.05rem;
    line-height: 1.75;
    color: #94a3b8;
    max-width: 640px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 1rem;
}

.stat-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.5rem 1rem;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: border-color 0.2s, transform 0.2s;
}

.stat-card:hover {
    border-color: var(--purple);
    transform: translateY(-3px);
}

.stat-num {
    display: block;
    font-size: 2.5rem;
    font-weight: 700;
    font-family: var(--mono);
    background: linear-gradient(135deg, var(--purple), var(--pink));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    line-height: 1;
}

.stat-label {
    display: block;
    font-size: 0.75rem;
    color: var(--muted);
    margin-top: 0.4rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

/* ── STACK ─────────────────────────────────────────────────── */
.stack-tabs {
    display: flex;
    gap: 0.5rem;
}

.tab {
    padding: 0.45rem 1.1rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--surface);
    border: 1px solid var(--border);
    color: var(--muted);
    transition: all 0.2s;
    cursor: pointer;
}

.tab.active, .tab:hover {
    background: rgba(124,58,237,0.2);
    border-color: var(--purple);
    color: var(--text);
}

.stack-panels { position: relative; min-height: 220px; }

.stack-panel {
    display: none;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.75rem;
}

.stack-panel.active { display: grid; }

.tech-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 0.75rem;
    padding: 1rem 0.75rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.4rem;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: border-color 0.2s, transform 0.2s, box-shadow 0.2s;
    cursor: default;
}

.tech-card:hover {
    border-color: var(--purple);
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(124,58,237,0.2);
}

.tech-icon {
    width: 36px;
    height: 36px;
    object-fit: contain;
    display: block;
    filter: drop-shadow(0 0 4px rgba(124,58,237,0.3));
    transition: filter 0.2s, transform 0.2s;
}

.tech-card:hover .tech-icon {
    filter: drop-shadow(0 0 8px rgba(124,58,237,0.6));
    transform: scale(1.1);
}

/* NextJS and Express ship black SVGs — invert on dark bg */
.logo-invert {
    filter: invert(1) drop-shadow(0 0 4px rgba(200,180,255,0.3));
}
.tech-card:hover .logo-invert {
    filter: invert(1) drop-shadow(0 0 8px rgba(200,180,255,0.6));
}

.tech-card span { font-size: 0.85rem; font-weight: 600; }
.tech-card small { font-size: 0.7rem; color: var(--muted); }

/* ── CONTACT ───────────────────────────────────────────────── */
.contact-sub {
    color: var(--muted);
    font-size: 1rem;
}

.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
}

.contact-card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: 1rem;
    padding: 1.75rem 1rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.6rem;
    text-align: center;
    backdrop-filter: blur(8px);
    transition: border-color 0.25s, transform 0.25s, box-shadow 0.25s;
}

.contact-card:hover {
    border-color: var(--purple);
    transform: translateY(-5px);
    box-shadow: 0 12px 32px rgba(124,58,237,0.25);
}

.contact-card img { width: 36px; height: 36px; object-fit: contain; }
.contact-name { font-weight: 600; font-size: 0.9rem; }
.contact-handle { font-family: var(--mono); font-size: 0.75rem; color: var(--muted); }

/* ── Toast ─────────────────────────────────────────────────── */
.toast {
    position: fixed;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%) translateY(6rem);
    background: rgba(124,58,237,0.9);
    color: #fff;
    padding: 0.65rem 1.5rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 500;
    backdrop-filter: blur(8px);
    transition: transform 0.3s cubic-bezier(.34,1.56,.64,1);
    z-index: 999;
    pointer-events: none;
}

.toast.show { transform: translateX(-50%) translateY(0); }

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 600px) {
    .sidenav { right: 0.75rem; }
    .section { padding: 1.25rem; }
    .hero-links { gap: 0.5rem; }
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
    .contact-grid { grid-template-columns: repeat(2, 1fr); }
}