/* =========================================================
   Portfolio styles. You don't need to edit this to update
   your content — see HOW-TO-UPDATE.md.
   To change the accent colours, edit --accent / --accent-2.
   ========================================================= */

:root,
:root[data-theme="dark"] {
  --bg: #070a12;
  --bg-2: #0b0f1a;
  --card: rgba(17, 23, 38, 0.72);
  --card-solid: #111726;
  --border: rgba(120, 140, 180, 0.16);
  --border-strong: rgba(120, 140, 180, 0.32);
  --text: #e6ebf5;
  --muted: #8b96ad;
  --accent: #22d3ee;      /* cyan */
  --accent-2: #a78bfa;    /* violet */
  --accent-3: #34d399;    /* green (live / success) */
  --glow: rgba(34, 211, 238, 0.18);
  --heat-0: #161d2c;
  --heat-1: #0e4f5c;
  --heat-2: #10808f;
  --heat-3: #19b4c7;
  --heat-4: #5eead4;
  --shadow: 0 10px 40px rgba(0, 0, 0, 0.35);
}

:root[data-theme="light"] {
  --bg: #f6f8fc;
  --bg-2: #eef2f8;
  --card: rgba(255, 255, 255, 0.82);
  --card-solid: #ffffff;
  --border: rgba(30, 50, 90, 0.12);
  --border-strong: rgba(30, 50, 90, 0.25);
  --text: #0f172a;
  --muted: #55627a;
  --accent: #0891b2;
  --accent-2: #7c3aed;
  --accent-3: #059669;
  --glow: rgba(8, 145, 178, 0.12);
  --heat-0: #e3e8f0;
  --heat-1: #a5e6ef;
  --heat-2: #4cc6d8;
  --heat-3: #1399b0;
  --heat-4: #0b6b80;
  --shadow: 0 10px 30px rgba(15, 23, 42, 0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 72px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font: 16px/1.65 "Inter", system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before { /* subtle grid */
  content: ""; position: fixed; inset: 0; z-index: -2; pointer-events: none;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse at 50% 0%, #000 0%, transparent 75%);
  opacity: .55;
}
#neural-bg { position: fixed; inset: 0; width: 100%; height: 100%; z-index: -1; pointer-events: none; }

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
.mono { font-family: "JetBrains Mono", ui-monospace, Menlo, Consolas, monospace; }
.muted { color: var(--muted); }
.container { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 20px; }
[hidden] { display: none !important; }

/* ---------- NAV ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  background: color-mix(in srgb, var(--bg) 72%, transparent);
  border-bottom: 1px solid var(--border);
}
.nav-inner { max-width: 1120px; margin: 0 auto; padding: 12px 20px; display: flex; align-items: center; gap: 20px; }
.brand { font-family: "JetBrains Mono", monospace; font-weight: 700; color: var(--text); white-space: nowrap; }
.brand:hover { text-decoration: none; }
.prompt { color: var(--accent); }
.nav-links { display: flex; gap: 22px; margin-left: auto; }
.nav-links a { color: var(--muted); font-family: "JetBrains Mono", monospace; font-size: 14px; }
.nav-links a:hover { color: var(--accent); text-decoration: none; }
.nav-actions { display: flex; gap: 8px; }
.icon-btn {
  display: inline-grid; place-items: center; width: 36px; height: 36px; border-radius: 10px;
  border: 1px solid var(--border); background: var(--card); color: var(--text); cursor: pointer;
}
.icon-btn:hover { border-color: var(--accent); color: var(--accent); }
.menu-btn { display: none; }

/* ---------- HERO ---------- */
.hero { padding: 96px 0 72px; }
.hero-grid { display: grid; grid-template-columns: 1.15fr 1fr; gap: 48px; align-items: center; }
.status-pill {
  display: inline-flex; align-items: center; gap: 8px; padding: 6px 14px; border-radius: 999px;
  border: 1px solid color-mix(in srgb, var(--accent-3) 45%, transparent);
  background: color-mix(in srgb, var(--accent-3) 10%, transparent);
  color: var(--accent-3); font-size: 13px; font-weight: 600; margin-bottom: 18px;
}
.dot, .live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-3); display: inline-block; position: relative; flex: none; }
.dot::after, .live-dot::after {
  content: ""; position: absolute; inset: -4px; border-radius: 50%;
  border: 2px solid var(--accent-3); animation: ping 1.8s ease-out infinite; opacity: 0;
}
@keyframes ping { 0% { transform: scale(.5); opacity: .9; } 100% { transform: scale(1.6); opacity: 0; } }
.hello { color: var(--accent); margin: 0 0 6px; font-size: 15px; }
.name {
  font-size: clamp(38px, 6vw, 64px); line-height: 1.05; margin: 0 0 10px; font-weight: 800; letter-spacing: -0.02em;
  background: linear-gradient(100deg, var(--text) 20%, var(--accent) 60%, var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.role { font-size: clamp(18px, 2.4vw, 22px); color: var(--muted); margin: 0 0 14px; font-weight: 500; }
.typing { font-size: 15px; margin: 0 0 18px; min-height: 1.6em; }
#typing { color: var(--accent-2); }
.caret { color: var(--accent); animation: blink 1s steps(1) infinite; }
@keyframes blink { 50% { opacity: 0; } }
.tagline { font-size: 17px; max-width: 560px; margin: 0 0 26px; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; }
.hero-cta.center { justify-content: center; }
.btn {
  display: inline-flex; align-items: center; gap: 8px; padding: 11px 18px; border-radius: 10px;
  font-weight: 600; font-size: 15px; border: 1px solid var(--border-strong); color: var(--text);
  background: var(--card); transition: transform .15s, border-color .15s, box-shadow .15s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); border-color: var(--accent); box-shadow: 0 6px 24px var(--glow); }
.btn.primary { background: linear-gradient(100deg, var(--accent), var(--accent-2)); color: #061018; border: 0; }
.btn svg { width: 17px; height: 17px; }
.hero-meta { margin-top: 22px; color: var(--muted); font-size: 13px; display: flex; flex-wrap: wrap; gap: 18px; }

.terminal {
  border-radius: 14px; border: 1px solid var(--border-strong); background: var(--card-solid);
  box-shadow: var(--shadow), 0 0 0 1px var(--glow), 0 0 80px var(--glow); overflow: hidden;
}
.term-bar { display: flex; align-items: center; gap: 7px; padding: 11px 14px; border-bottom: 1px solid var(--border); background: var(--bg-2); }
.term-bar i { width: 11px; height: 11px; border-radius: 50%; background: #ff5f57; }
.term-bar i:nth-child(2) { background: #febc2e; }
.term-bar i:nth-child(3) { background: #28c840; }
.term-bar span { margin-left: 8px; font-size: 12px; color: var(--muted); }
.term-body { margin: 0; padding: 18px 20px; font-size: 13.5px; line-height: 1.75; white-space: pre-wrap; word-break: break-word; min-height: 280px; }
.tk-k { color: var(--accent-2); } .tk-s { color: var(--accent-3); } .tk-c { color: var(--muted); } .tk-f { color: var(--accent); }

/* ---------- SECTIONS ---------- */
.section { padding: 72px 0; }
.section-title { font-family: "JetBrains Mono", monospace; font-size: clamp(22px, 3vw, 30px); margin: 0 0 28px; display: flex; align-items: center; gap: 12px; }
.section-title::after { content: ""; flex: 1; height: 1px; background: linear-gradient(90deg, var(--border-strong), transparent); }
.section-title.center { justify-content: center; }
.section-title.center::after { display: none; }
.idx { color: var(--accent); font-size: .75em; }
.section-sub { color: var(--muted); margin: -16px 0 22px; font-size: 13px; }

.card {
  background: var(--card); border: 1px solid var(--border); border-radius: 14px; padding: 22px;
  backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
  transition: border-color .2s, transform .2s, box-shadow .2s;
}
.card-title { font-size: 14px; margin: 0 0 14px; color: var(--accent); display: flex; align-items: center; gap: 10px; font-weight: 500; }

.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s ease, transform .6s ease; }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) { .reveal { opacity: 1; transform: none; transition: none; } html { scroll-behavior: auto; } }

/* ---------- ABOUT ---------- */
.about-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 22px; }
.about-card { display: flex; gap: 22px; align-items: flex-start; }
.photo { width: 120px; height: 120px; border-radius: 14px; object-fit: cover; border: 1px solid var(--border-strong); flex: none; }
.bio p { margin: 0 0 12px; }
.bio p:last-child { margin: 0; }
.bio strong, .bullets strong { color: var(--accent); font-weight: 600; }
.news-list { list-style: none; margin: 0; padding: 0; }
.news-list li { padding: 10px 0 10px 16px; border-left: 2px solid var(--border-strong); position: relative; }
.news-list li::before { content: ""; position: absolute; left: -5px; top: 17px; width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.news-list time { font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--muted); }
.news-list b { display: block; font-size: 15px; margin: 2px 0; }
.news-list p { margin: 0; font-size: 14px; color: var(--muted); }

/* ---------- EXPERIENCE ---------- */
.timeline { position: relative; padding-left: 28px; }
.timeline::before { content: ""; position: absolute; left: 7px; top: 6px; bottom: 6px; width: 2px; background: linear-gradient(var(--accent), var(--accent-2), transparent); }
.job { position: relative; margin-bottom: 22px; }
.job::before { content: ""; position: absolute; left: -27px; top: 26px; width: 14px; height: 14px; border-radius: 50%; background: var(--bg); border: 3px solid var(--accent); box-shadow: 0 0 12px var(--glow); }
.job:hover, .project:hover { border-color: color-mix(in srgb, var(--accent) 50%, transparent); box-shadow: 0 8px 30px var(--glow); }
.item-head { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; align-items: baseline; }
.item-head h3 { margin: 0; font-size: 19px; }
.item-date { font-family: "JetBrains Mono", monospace; font-size: 13px; color: var(--accent); white-space: nowrap; }
.item-where { color: var(--accent-2); font-weight: 500; margin: 2px 0 10px; font-size: 15px; }
.bullets { margin: 0; padding-left: 18px; }
.bullets li { margin: 5px 0; color: color-mix(in srgb, var(--text) 88%, var(--muted)); }
.bullets li::marker { color: var(--accent); content: "▹  "; }
.tags { display: flex; flex-wrap: wrap; gap: 7px; margin-top: 14px; }
.tag {
  font-family: "JetBrains Mono", monospace; font-size: 12px; padding: 3px 10px; border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 10%, transparent); color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
}

/* ---------- PROJECTS ---------- */
.grid-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.project { display: flex; flex-direction: column; }
.project.featured { grid-column: 1 / -1; border-color: color-mix(in srgb, var(--accent-2) 45%, transparent); background: linear-gradient(135deg, color-mix(in srgb, var(--accent-2) 9%, var(--card)), var(--card)); }
.badge { font-family: "JetBrains Mono", monospace; font-size: 11px; padding: 2px 9px; border-radius: 6px; background: color-mix(in srgb, var(--accent-2) 18%, transparent); color: var(--accent-2); margin-bottom: 10px; display: inline-block; align-self: flex-start; }
.project .tags { margin-top: auto; padding-top: 14px; }
.project-link { margin-top: 12px; font-family: "JetBrains Mono", monospace; font-size: 13px; }

/* ---------- GITHUB ---------- */
.gh-stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 14px; margin-bottom: 18px; }
.stat { text-align: left; padding: 16px 18px; }
.stat b { display: block; font-size: 26px; font-weight: 800; background: linear-gradient(100deg, var(--accent), var(--accent-2)); -webkit-background-clip: text; background-clip: text; color: transparent; line-height: 1.2; }
.stat span { font-family: "JetBrains Mono", monospace; font-size: 12px; color: var(--muted); }
.gh-heatmap-card { margin-bottom: 18px; }
.gh-heat-head { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 6px; }
.gh-heat-head .card-title { margin-bottom: 12px; }
.heatmap-scroll { overflow-x: auto; padding-bottom: 4px; }
.heatmap { display: grid; grid-auto-flow: column; grid-template-rows: repeat(7, 11px); grid-auto-columns: 11px; gap: 3px; width: max-content; }
.heatmap i, .heat-legend i { width: 11px; height: 11px; border-radius: 2px; background: var(--heat-0); display: block; }
.l1 { background: var(--heat-1) !important; } .l2 { background: var(--heat-2) !important; }
.l3 { background: var(--heat-3) !important; } .l4 { background: var(--heat-4) !important; }
.heat-legend { display: flex; align-items: center; justify-content: flex-end; gap: 4px; font-size: 11px; margin-top: 8px; }
.repo-list { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 12px; }
.repo-list .project-link { grid-column: 1 / -1; }
.repo { display: block; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px; color: var(--text); transition: border-color .15s; }
.repo:hover { text-decoration: none; border-color: var(--accent); }
.repo-name { font-family: "JetBrains Mono", monospace; font-weight: 700; font-size: 14px; color: var(--accent); }
.repo-desc { font-size: 13px; color: var(--muted); margin: 2px 0 6px; }
.repo-meta { display: flex; gap: 14px; font-size: 12px; color: var(--muted); font-family: "JetBrains Mono", monospace; flex-wrap: wrap; }
.lang-dot { display: inline-block; width: 9px; height: 9px; border-radius: 50%; margin-right: 5px; vertical-align: 0; }

/* ---------- SKILLS ---------- */
.skills-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 18px; }
.skill-group h3 { font-family: "JetBrains Mono", monospace; font-size: 14px; color: var(--accent-2); margin: 0 0 12px; font-weight: 500; }
.skill-group h3::before { content: "import "; color: var(--muted); }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chip { padding: 6px 12px; border-radius: 8px; font-size: 14px; border: 1px solid var(--border-strong); background: var(--bg-2); transition: border-color .15s, color .15s; }
.chip:hover { border-color: var(--accent); color: var(--accent); }

/* ---------- EDUCATION ---------- */
.edu-grid { display: grid; grid-template-columns: 1.3fr 1fr; gap: 20px; }
.edu-col { display: grid; gap: 18px; align-content: start; }
.edu .item-head h3 { font-size: 17px; }
.edu p { margin: 6px 0 0; color: var(--muted); font-size: 14px; }
.mini-list { list-style: none; padding: 0; margin: 0; }
.mini-list li { display: flex; justify-content: space-between; gap: 10px; padding: 7px 0; border-bottom: 1px dashed var(--border); font-size: 14px; }
.mini-list li:last-child { border-bottom: 0; }
.mini-list span { color: var(--muted); font-family: "JetBrains Mono", monospace; font-size: 12px; text-align: right; }

/* ---------- CONTACT / FOOTER ---------- */
.contact { text-align: center; padding: 48px 24px; background: radial-gradient(ellipse at top, color-mix(in srgb, var(--accent) 10%, var(--card)), var(--card)); }
.contact-text { max-width: 520px; margin: 0 auto 26px; color: var(--muted); font-size: 17px; }
.footer { text-align: center; padding: 30px 20px 40px; color: var(--muted); font-size: 12.5px; }

.notice { padding: 14px 18px; border-radius: 10px; border: 1px solid #f59e0b55; background: #f59e0b14; color: #f59e0b; font-size: 14px; margin: 16px 0; }

/* ---------- RESPONSIVE ---------- */
@media (max-width: 900px) {
  .hero { padding: 56px 0 40px; }
  .hero-grid, .about-grid, .edu-grid { grid-template-columns: 1fr; }
  .gh-stats { grid-template-columns: repeat(2, 1fr); }
  .grid-cards, .skills-grid { grid-template-columns: 1fr; }
  .menu-btn { display: inline-grid; }
  .nav-links {
    display: none; position: absolute; top: 100%; left: 0; right: 0; flex-direction: column; gap: 0;
    background: var(--bg); border-bottom: 1px solid var(--border); padding: 8px 20px;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 10px 0; }
  .nav-actions { margin-left: auto; }
}
@media (max-width: 560px) {
  .container { padding: 0 16px; }
  .about-card { flex-direction: column; }
  .section { padding: 52px 0; }
  .term-body { font-size: 12px; min-height: 0; }
}