/* ============================================================
   David Singh Rana — Portfolio
   Bloomberg-terminal-meets-fintech. Cyan-teal sole accent.
   ============================================================ */

:root {
  --bg-void:      #0A0E1A;
  --bg-panel:     #111827;
  --bg-elevated:  #1A2235;
  --line:         #22304A;
  --text-primary: #E8EDF5;
  --text-muted:   #8A97AD;
  --accent-data:  #35D0BA;
  --accent-live:  #F5A623;
  --accent-glow:  rgba(53,208,186,0.15);

  --font-display: "Space Grotesk", "Segoe UI", sans-serif;
  --font-body:    "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "Consolas", monospace;

  --maxw: 1120px;
  --ease: cubic-bezier(.16,.84,.44,1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0; background: var(--bg-void); color: var(--text-primary);
  font-family: var(--font-body); line-height: 1.7; font-size: 16px;
  -webkit-font-smoothing: antialiased; overflow-x: hidden;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
h1,h2,h3,h4 { font-family: var(--font-display); margin: 0; line-height: 1.1; }
::selection { background: rgba(53,208,186,.3); color: #fff; }

.wrap { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 24px; position: relative; }
.eyebrow { font-family: var(--font-mono); font-size: .75rem; text-transform: uppercase; letter-spacing: .15em; color: var(--accent-data); margin: 0 0 14px; }
.section-h2 { font-size: clamp(1.6rem, 3.4vw, 2rem); font-weight: 500; letter-spacing: -.01em; margin-bottom: 18px; }
.accent { color: var(--accent-data); }
.mono-quiet { font-family: var(--font-mono); color: var(--text-muted); font-size: .8rem; }
.up { color: var(--accent-data); }

/* ---------- Buttons ---------- */
.btn { display: inline-flex; align-items: center; gap: 8px; font-family: var(--font-body); font-weight: 600; font-size: .95rem;
  padding: 13px 24px; border-radius: 10px; cursor: pointer; border: 1px solid transparent; transition: transform .2s var(--ease), background .2s, border-color .2s; }
.btn-primary { background: var(--accent-data); color: #062018; }
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 12px 30px -12px var(--accent-data); }
.btn-ghost { background: transparent; color: var(--text-primary); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--accent-data); transform: translateY(-2px); }
.btn-sm { padding: 8px 16px; font-size: .85rem; background: var(--bg-elevated); border: 1px solid var(--line); color: var(--text-primary); border-radius: 8px; }
.btn-sm:hover { border-color: var(--accent-data); }

/* ---------- Nav ---------- */
.nav { position: fixed; top: 0; left: 0; right: 0; z-index: 60; transition: background .3s, border-color .3s; border-bottom: 1px solid transparent; }
.nav.scrolled { background: rgba(10,14,26,.85); backdrop-filter: blur(12px); border-bottom-color: var(--line); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 68px; }
.brand { font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; letter-spacing: .04em; }
.brand-dot { color: var(--accent-data); }
.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a { color: var(--text-muted); font-size: .92rem; transition: color .2s; }
.nav-links a:hover { color: var(--text-primary); }
.nav-links a.btn-sm { color: var(--text-primary); }
.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text-primary); transition: .25s var(--ease); }
.nav-toggle.open span:nth-child(1){ transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2){ opacity: 0; }
.nav-toggle.open span:nth-child(3){ transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; min-height: 100vh; display: flex; align-items: center; overflow: hidden; }
#hero-canvas { position: absolute; inset: 0; z-index: 0; width: 100%; height: 100%; pointer-events: none; }
.hero-glow { position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(600px 400px at 30% 40%, var(--accent-glow), transparent 70%); }
.hero-content { z-index: 1; padding-top: 80px; }
.hero h1 { font-size: clamp(2.8rem, 6vw, 4.5rem); font-weight: 700; letter-spacing: -.02em; margin-bottom: 20px; }
.hero-sub { color: var(--text-muted); font-size: 1.15rem; max-width: 560px; margin: 0 0 32px; }
.hero-cta { display: flex; gap: 14px; flex-wrap: wrap; }
.scroll-cue { position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%); z-index: 1; width: 26px; height: 42px; border: 2px solid var(--line); border-radius: 14px; }
.scroll-cue span { position: absolute; top: 8px; left: 50%; width: 4px; height: 8px; margin-left: -2px; background: var(--accent-data); border-radius: 2px; animation: scrolldot 1.6s var(--ease) infinite; }
@keyframes scrolldot { 0%{opacity:0;transform:translateY(0)} 40%{opacity:1} 80%{opacity:0;transform:translateY(14px)} 100%{opacity:0} }

/* ---------- Stats ---------- */
.stats { background: var(--bg-panel); border-top: 1px solid var(--line); border-bottom: 1px solid var(--line); padding: 34px 0; }
.stats-grid { display: grid; grid-template-columns: repeat(4,1fr); gap: 20px; }
.stat { text-align: center; }
.stat-num { font-family: var(--font-mono); font-size: 2.1rem; font-weight: 500; color: var(--accent-data); line-height: 1; }
.stat-lbl { font-family: var(--font-mono); font-size: .78rem; color: var(--text-muted); margin-top: 8px; text-transform: uppercase; letter-spacing: .05em; }

/* ---------- Work ---------- */
.work { padding: 100px 0 60px; }
.work > .wrap:first-child { margin-bottom: 40px; }
.proj { display: grid; grid-template-columns: 1.05fr .95fr; gap: 48px; align-items: center; padding: 40px 0; }
.proj.rev .proj-media { order: 2; }
.proj-index { font-family: var(--font-mono); font-size: 2.4rem; color: var(--line); font-weight: 500; line-height: 1; margin-bottom: 8px; }
.status { font-family: var(--font-mono); font-size: .72rem; letter-spacing: .12em; color: var(--text-muted); display: inline-flex; align-items: center; gap: 8px; margin-bottom: 14px; }
.dot { width: 8px; height: 8px; border-radius: 50%; display: inline-block; }
.dot.live { background: var(--accent-live); box-shadow: 0 0 10px var(--accent-live); animation: pulse 2s infinite; }
.dot.demo { background: var(--text-muted); }
@keyframes pulse { 0%,100%{opacity:1} 50%{opacity:.4} }
.proj-title { font-size: 1.5rem; font-weight: 500; margin-bottom: 6px; }
.proj-tag { color: var(--accent-data); font-size: .95rem; margin: 0 0 14px; }
.proj-desc { color: var(--text-muted); margin: 0 0 18px; }
.chips { display: flex; flex-wrap: wrap; gap: 8px; }
.chips span { font-family: var(--font-mono); font-size: .75rem; padding: 4px 10px; border-radius: 20px; background: var(--bg-elevated); border: 1px solid var(--line); color: var(--text-muted); }
.proj-link { display: inline-block; margin-top: 18px; color: var(--accent-data); font-weight: 600; font-size: .95rem; }
.proj-link:hover { text-decoration: underline; }

/* Faux window + mock preview */
.win { background: var(--bg-panel); border: 1px solid var(--line); border-radius: 12px; overflow: hidden; position: relative;
  box-shadow: 0 30px 60px -30px rgba(0,0,0,.7), 0 0 0 1px var(--accent-glow); transition: transform .25s var(--ease), box-shadow .25s, border-color .25s; }
.proj:hover .win { transform: translateY(-4px); border-color: rgba(53,208,186,.4); box-shadow: 0 40px 70px -30px rgba(0,0,0,.8), 0 0 30px -6px var(--accent-glow); }
.win-bar { display: flex; align-items: center; gap: 6px; padding: 11px 14px; background: var(--bg-elevated); border-bottom: 1px solid var(--line); }
.win-bar span { width: 10px; height: 10px; border-radius: 50%; background: var(--line); }
.win-bar span:nth-child(1){ background: #ff5f57; } .win-bar span:nth-child(2){ background: #febc2e; } .win-bar span:nth-child(3){ background: #28c840; }
.win-bar em { font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted); margin-left: 10px; font-style: normal; }
.mock { padding: 18px; }
.mock-row { display: flex; justify-content: space-between; align-items: center; font-family: var(--font-mono); font-size: .78rem; color: var(--text-muted); margin-bottom: 12px; }
.mock-row .mock-v { color: var(--text-primary); }
.mock-row .mock-v.up { color: var(--accent-data); }
.mock-chart { width: 100%; height: 90px; display: block; }
.mock-stats { display: grid; grid-template-columns: repeat(4,1fr); gap: 8px; margin-top: 14px; }
.mock-stats > div { background: var(--bg-void); border: 1px solid var(--line); border-radius: 8px; padding: 8px; text-align: center; }
.mock-stats b { display: block; font-family: var(--font-mono); font-size: .95rem; color: var(--accent-data); }
.mock-stats b.up { color: var(--accent-data); }
.mock-stats span { font-family: var(--font-mono); font-size: .6rem; color: var(--text-muted); letter-spacing: .05em; }
.mock-pos { background: var(--bg-void); border: 1px solid var(--line); border-radius: 8px; padding: 12px; }
.mp-sym { font-family: var(--font-mono); font-weight: 500; }
.mp-sym .badge { font-size: .62rem; background: rgba(53,208,186,.14); color: var(--accent-data); padding: 2px 7px; border-radius: 10px; margin-left: 8px; }
.mp-line { font-family: var(--font-mono); font-size: .72rem; color: var(--text-muted); margin: 6px 0 10px; }
.mp-bar { height: 6px; background: var(--line); border-radius: 4px; overflow: hidden; }
.mp-bar i { display: block; height: 100%; background: var(--accent-data); border-radius: 4px; }
.mock-tags { display: flex; gap: 8px; margin-bottom: 12px; }
.mock-tags span { font-family: var(--font-mono); font-size: .68rem; padding: 3px 10px; border-radius: 20px; border: 1px solid var(--line); color: var(--text-muted); }
.invest-verdict { margin-top: 12px; padding: 10px 12px; border-radius: 8px; background: rgba(53,208,186,.1); border: 1px solid rgba(53,208,186,.28); font-family: var(--font-mono); font-size: .72rem; color: var(--accent-data); }
.play { position: absolute; bottom: 14px; right: 14px; font-family: var(--font-mono); font-size: .76rem; color: var(--text-primary);
  background: rgba(10,14,26,.8); border: 1px solid var(--line); padding: 8px 14px; border-radius: 20px; cursor: pointer; backdrop-filter: blur(6px); transition: .2s; }
.play:hover { border-color: var(--accent-data); color: var(--accent-data); }

/* ---------- About ---------- */
.about { padding: 80px 0; border-top: 1px solid var(--line); }
.about-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: 56px; align-items: start; }
.about-text { color: var(--text-muted); font-size: 1.05rem; }
.stack { display: grid; grid-template-columns: 1fr 1fr; gap: 22px; }
.stack-group h4 { font-family: var(--font-mono); font-size: .72rem; text-transform: uppercase; letter-spacing: .1em; color: var(--text-muted); margin-bottom: 10px; font-weight: 500; }

/* ---------- Contact ---------- */
.contact { padding: 90px 0; border-top: 1px solid var(--line); text-align: center; }
.center-col { max-width: 640px; margin: 0 auto; }
.contact .eyebrow { display: inline-block; }
.contact-links { display: flex; flex-direction: column; gap: 14px; align-items: center; margin-top: 26px; }
.clink { font-family: var(--font-mono); font-size: 1.05rem; color: var(--text-primary); background: none; border: 0; cursor: pointer; position: relative; padding: 6px 4px; transition: color .2s; }
.clink:hover { color: var(--accent-data); }
.copied { position: absolute; top: -18px; left: 50%; transform: translateX(-50%); font-size: .62rem; color: var(--accent-data); opacity: 0; transition: opacity .2s; }
.copied.show { opacity: 1; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--line); padding: 28px 0; }
.footer-inner { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 10px; font-family: var(--font-mono); font-size: .8rem; color: var(--text-muted); }

/* ---------- Modal ---------- */
.modal { position: fixed; inset: 0; z-index: 100; display: none; align-items: center; justify-content: center; padding: 24px; }
.modal.open { display: flex; }
.modal-backdrop { position: absolute; inset: 0; background: rgba(5,8,16,.85); backdrop-filter: blur(6px); }
.modal-box { position: relative; z-index: 1; width: 100%; max-width: 860px; background: var(--bg-panel); border: 1px solid var(--line); border-radius: 14px; padding: 20px; }
.modal-close { position: absolute; top: 12px; right: 14px; background: none; border: 0; color: var(--text-muted); font-size: 1.1rem; cursor: pointer; }
.modal-close:hover { color: var(--text-primary); }
.modal-title { font-family: var(--font-mono); font-size: .82rem; color: var(--text-muted); margin-bottom: 14px; }
.modal-media { aspect-ratio: 16/9; background: var(--bg-void); border: 1px solid var(--line); border-radius: 10px; display: grid; place-items: center; overflow: hidden; }
.modal-media iframe, .modal-media video { width: 100%; height: 100%; border: 0; }
.modal-placeholder { text-align: center; color: var(--text-muted); font-family: var(--font-mono); font-size: .85rem; padding: 20px; }
.modal-placeholder .big { color: var(--accent-data); font-size: 2rem; display: block; margin-bottom: 8px; }

/* ---------- Reveal ---------- */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-links { position: fixed; inset: 68px 0 auto 0; flex-direction: column; gap: 0; background: rgba(10,14,26,.98);
    border-bottom: 1px solid var(--line); padding: 10px 0; transform: translateY(-160%); transition: transform .3s var(--ease); }
  .nav-links.open { transform: none; }
  .nav-links a { width: 100%; padding: 15px 24px; }
  .nav-links a.btn-sm { margin: 12px 24px; text-align: center; justify-content: center; }
  .nav-toggle { display: flex; }
  .stats-grid { grid-template-columns: repeat(2,1fr); gap: 26px; }
  .proj, .about-grid { grid-template-columns: 1fr; gap: 28px; }
  .proj.rev .proj-media { order: 0; }
  .stack { grid-template-columns: 1fr 1fr; }
  /* Hero CTA: stack full-width, equal, aligned */
  .hero-cta { flex-direction: column; align-items: stretch; width: 100%; max-width: 340px; }
  .hero-cta .btn { width: 100%; justify-content: center; }
  /* Scroll cue overlaps content on short mobile viewports — hide it */
  .scroll-cue { display: none; }
}
@media (max-width: 420px) {
  .stack { grid-template-columns: 1fr; }
  .mock-stats { grid-template-columns: repeat(2,1fr); }
}
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  #hero-canvas { display: none; }
}