/* ============================================================
   OR — Reza Bazdar portfolio · v7
   Design language: Deepnote-inspired — light, cinematic, precise.
   Space Grotesk (display) · Inter (body) · JetBrains Mono (code)
   ============================================================ */

:root {
  --blue: #1B61EA;
  --blue-dark: #1254D0;
  --blue-soft: #EAF1FE;
  --blue-glow: rgba(27, 97, 234, .14);
  --ink: #14181F;
  --ink-2: #2A313C;
  --slate: #46505E;
  --muted: #5E6B7C;
  --faint: #8B97A6;
  --border: #E4E9F0;
  --border-2: #D6DEE8;
  --soft: #F6F9FC;
  --tint: #F0F4F9;
  --white: #FFFFFF;
  --navy: #0D1B3E;
  --pink: #E8377F;
  --pink-soft: #FDE8F1;
  --green: #0E9F6E;
  --green-soft: #E3F6EE;
  --amber: #D97706;
  --amber-soft: #FCEFDB;
  --purple: #7C5CFC;
  --purple-soft: #EFEAFF;

  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --display: 'Space Grotesk', 'Inter', system-ui, sans-serif;
  --mono: 'JetBrains Mono', 'SFMono-Regular', Menlo, Consolas, monospace;

  --shadow-sm: 0 1px 2px rgba(20, 24, 31, .05), 0 2px 8px rgba(20, 24, 31, .05);
  --shadow-md: 0 2px 6px rgba(20, 24, 31, .05), 0 14px 40px rgba(20, 24, 31, .10);
  --shadow-lg: 0 4px 14px rgba(13, 27, 62, .08), 0 32px 72px rgba(13, 27, 62, .16);
  --r-sm: 10px;
  --r-md: 16px;
  --r-lg: 24px;
  --ease: cubic-bezier(.22, 1, .36, 1);
}

/* ---------- Reset & base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16.5px;
  line-height: 1.6;
  color: var(--ink-2);
  background: var(--white);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}
img { max-width: 100%; height: auto; }
a { color: var(--blue); }
h1, h2, h3 { color: var(--ink); margin: 0; }
p { margin: 0; }
button { font-family: inherit; }
::selection { background: rgba(27, 97, 234, .18); }

.container { max-width: 1180px; margin: 0 auto; padding: 0 28px; }
.mono { font-family: var(--mono); font-size: .92em; }
.skip {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 0 0 8px 0;
}
.skip:focus { left: 0; }
.center { text-align: center; }

:focus-visible { outline: 2px solid var(--blue); outline-offset: 3px; border-radius: 6px; }

section[id] { scroll-margin-top: 84px; }

/* ---------- Type scale ---------- */
.display, .display-1, .display-2, .section-headline {
  font-family: var(--display);
  letter-spacing: -.035em;
  line-height: 1.05;
  color: var(--ink);
  font-weight: 700;
}
.display  { font-size: clamp(36px, 5.2vw, 64px); }
.display-1 { font-size: clamp(32px, 4.6vw, 54px); }
.display-2 { font-size: clamp(27px, 3.6vw, 44px); }

/* ---------- Buttons & pills ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 12px 22px; border-radius: 12px;
  font-weight: 600; font-size: 15.5px; line-height: 1; text-decoration: none;
  border: 1px solid transparent; cursor: pointer; white-space: nowrap;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease),
              background .2s ease, border-color .2s ease, color .2s ease;
}
.btn:active { transform: translateY(1px) scale(.99); }
.btn-primary {
  background: var(--blue); color: #fff;
  box-shadow: 0 1px 2px rgba(13, 27, 62, .18), 0 8px 20px rgba(27, 97, 234, .28), inset 0 1px 0 rgba(255,255,255,.16);
}
.btn-primary:hover { background: var(--blue-dark); transform: translateY(-2px); box-shadow: 0 2px 4px rgba(13,27,62,.2), 0 14px 30px rgba(27, 97, 234, .36); }
.btn-ghost {
  background: var(--white); color: var(--ink); border-color: var(--border-2);
  box-shadow: var(--shadow-sm);
}
.btn-ghost:hover { border-color: var(--faint); transform: translateY(-2px); box-shadow: var(--shadow-md); }
.btn-lg { padding: 15px 28px; font-size: 16.5px; border-radius: 14px; }
.btn-sm { padding: 9px 16px; font-size: 14px; border-radius: 10px; }

.pill {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 16px; border-radius: 999px;
  font-size: 14px; font-weight: 600; letter-spacing: .01em;
}
.pill-green { background: var(--green-soft); color: var(--green); border: 1px solid #CBEEDD; }
.pill .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 3px rgba(14,159,110,.18); animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { box-shadow: 0 0 0 3px rgba(14,159,110,.18);} 50% { box-shadow: 0 0 0 6px rgba(14,159,110,.08);} }

.eyebrow {
  display: inline-block; font-size: 13px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase;
  color: var(--blue); margin-bottom: 12px;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .82);
  backdrop-filter: blur(14px); -webkit-backdrop-filter: blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s ease, box-shadow .3s ease;
}
.nav.scrolled { border-bottom-color: var(--border); box-shadow: 0 6px 24px rgba(20, 24, 31, .06); }
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 64px; }
.brand { display: inline-flex; align-items: center; gap: 11px; text-decoration: none; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px;
  background: linear-gradient(135deg, var(--blue), #5A8BFF);
  color: #fff; font-family: var(--display); font-weight: 700; font-size: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  box-shadow: 0 4px 12px rgba(27, 97, 234, .32);
}
.brand-text { font-family: var(--display); font-weight: 600; font-size: 17px; color: var(--ink); letter-spacing: -.02em; }
.nav-links { display: flex; align-items: center; gap: 26px; }
.nav-links > a:not(.btn) {
  font-size: 15px; font-weight: 500; color: var(--slate); text-decoration: none;
  transition: color .2s ease;
}
.nav-links > a:not(.btn):hover { color: var(--ink); }
.burger { display: none; flex-direction: column; gap: 5px; background: none; border: none; padding: 8px; cursor: pointer; }
.burger span { width: 22px; height: 2px; background: var(--ink); border-radius: 2px; transition: transform .3s var(--ease), opacity .2s; }
.burger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.burger.open span:nth-child(2) { opacity: 0; }
.burger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { position: relative; padding: 40px 0 0; overflow: clip; }
.hero-bg { position: absolute; inset: 0; pointer-events: none; }
.hero-grid {
  position: absolute; inset: 0;
  background-image: linear-gradient(rgba(20,24,31,.045) 1px, transparent 1px),
                    linear-gradient(90deg, rgba(20,24,31,.045) 1px, transparent 1px);
  background-size: 46px 46px;
  -webkit-mask-image: radial-gradient(760px 460px at 50% 0%, #000 30%, transparent 78%);
          mask-image: radial-gradient(760px 460px at 50% 0%, #000 30%, transparent 78%);
}
.hero-glow { position: absolute; border-radius: 50%; filter: blur(70px); transition: background .6s ease; }
.hero-glow-a { width: 560px; height: 560px; background: var(--blue-glow); top: -220px; left: 50%; transform: translateX(-78%); }
.hero-glow-b { width: 480px; height: 480px; background: rgba(123, 97, 255, .10); top: -180px; left: 50%; transform: translateX(6%); }
.hero[data-view="agents"] .hero-glow-a { background: rgba(123, 97, 255, .16); }
.hero[data-view="agents"] .hero-glow-b { background: var(--blue-glow); }

.hero-solo { position: relative; }
.hero-copy { text-align: center; max-width: 900px; margin: 0 auto; }
.hero-copy .pill { margin-bottom: 12px; }

.display-line { display: block; }

/* --- Deepnote humans <-> agents toggle — mechanics mirrored from deepnote.com ---
   lens: left/width .28s cubic-bezier(.4,.6,.2,1) + color morph blue <-> purple
   rows: outgoing sinks (translateY 72px · rotate .5deg · scale .96), incoming rises
   children: rise from +74px — translate .58s / opacity .38s, no stagger (as deepnote) */
.hero-toggle {
  display: flex; width: fit-content; margin: 0 auto 14px;
  align-items: center; gap: 0;
  position: relative; padding: 5px;
  background: linear-gradient(180deg, #FFFFFF 0%, #F4F7FC 100%);
  border: 2px solid rgba(27, 97, 234, .18);
  border-radius: 999px;
  box-shadow: 0 2px 0 rgba(8, 30, 71, .04),
              0 14px 30px -10px rgba(27, 97, 234, .22),
              inset 0 0 0 1px rgba(255, 255, 255, .6);
  transition: border-color .25s, box-shadow .25s;
}
.hero[data-view="agents"] .hero-toggle {
  border-color: rgba(123, 97, 255, .22);
  box-shadow: 0 2px 0 rgba(8, 30, 71, .04),
              0 14px 30px -10px rgba(123, 97, 255, .26),
              inset 0 0 0 1px rgba(255, 255, 255, .6);
}
.hero-toggle .lens {
  position: absolute; top: 4px; bottom: 4px;
  left: var(--lens-left, 5px); width: var(--lens-width, calc(50% - 7px));
  border-radius: 999px; background: var(--blue);
  transition: left .28s cubic-bezier(.4, .6, .2, 1),
              width .28s cubic-bezier(.4, .6, .2, 1),
              background .25s, box-shadow .25s;
  box-shadow: 0 4px 14px -4px rgba(27, 97, 234, .45);
  will-change: left, width;
}
.hero[data-view="agents"] .hero-toggle .lens {
  background: #7B61FF;
  box-shadow: 0 4px 14px -4px rgba(123, 97, 255, .45);
}
.hero-toggle .opt {
  position: relative; z-index: 2;
  border: none; background: transparent; cursor: pointer;
  font-family: var(--display); font-weight: 700;
  font-size: 16.5px; line-height: 1; letter-spacing: -.01em;
  padding: 11px 26px; border-radius: 999px;
  color: var(--slate);
  transition: color .25s;
}
.hero-toggle .opt:hover { color: var(--ink); }
.hero[data-view="humans"] .hero-toggle .opt[data-mode="humans"],
.hero[data-view="agents"] .hero-toggle .opt[data-mode="agents"],
.hero-toggle .opt.is-active { color: #fff; }

/* --- hero states: deepnote row-swap, verbatim curves --- */
.hero-states { display: grid; }
.hero-state {
  grid-area: 1 / 1;
  display: flex; flex-direction: column; justify-content: center;
  opacity: 0; visibility: hidden; pointer-events: none;
  transform: translateY(72px) rotate(.5deg) scale(.96);
  transition: opacity .44s cubic-bezier(.2, .8, .2, 1),
              transform .72s cubic-bezier(.16, 1, .3, 1),
              visibility 0s linear .44s;
}
.hero-state.is-active {
  opacity: 1; visibility: visible; pointer-events: auto;
  transform: translateY(0) rotate(0deg) scale(1);
  transition: opacity .44s cubic-bezier(.2, .8, .2, 1),
              transform .72s cubic-bezier(.16, 1, .3, 1),
              visibility 0s;
}
.hero-state > * {
  transition: translate .58s cubic-bezier(.16, 1, .3, 1),
              opacity .38s cubic-bezier(.2, .8, .2, 1);
}
.hero-state:not(.is-active) > * { opacity: 0; translate: 0 74px; }
.hero-state.is-active > * { opacity: 1; translate: 0 0; }

/* --- hero cards stage: deepnote row swap — light product cards (humans) <-> dark agent cards (agents) --- */
.hero-cards {
  position: relative; height: 400px; width: min(1240px, 100%);
  margin: 16px auto 0; overflow: hidden; isolation: isolate; perspective: 1200px;
}
.hc-row {
  position: absolute; inset: 0;
  transition: opacity .44s cubic-bezier(.2, .8, .2, 1), transform .72s cubic-bezier(.16, 1, .3, 1);
}
.hero[data-view="humans"] .hc-row.agents, .hero[data-view="agents"] .hc-row.humans { opacity: 0; pointer-events: none; transform: translateY(72px) rotate(.5deg) scale(.96); }
.hero[data-view="humans"] .hc-row.humans, .hero[data-view="agents"] .hc-row.agents { opacity: 1; pointer-events: auto; transform: translateY(0) rotate(0deg) scale(1); }
.hero[data-view="humans"] .hc-row.agents *, .hero[data-view="agents"] .hc-row.humans * { animation: none !important; }
.hc {
  position: absolute; width: 400px;
  transition: translate .58s cubic-bezier(.16, 1, .3, 1), opacity .38s cubic-bezier(.2, .8, .2, 1),
              transform .44s cubic-bezier(.2, .9, .2, 1), box-shadow .44s cubic-bezier(.2, .9, .2, 1),
              border-color .24s, filter .24s;
}
.hero[data-view="humans"] .hc-row.agents .hc, .hero[data-view="agents"] .hc-row.humans .hc { opacity: 0; translate: 0 74px; }
.hero[data-view="humans"] .hc-row.humans .hc, .hero[data-view="agents"] .hc-row.agents .hc { opacity: 1; translate: 0 0; }
.hc.stack-center { left: 50%; margin-left: -190px; width: 380px; top: 68px; z-index: 3; }
.hc.stack-left  { left: calc(50% - 545px); top: 104px; transform: rotate(-6deg); z-index: 2; }
.hc.stack-right { right: calc(50% - 545px); top: 112px; transform: rotate(6deg); z-index: 1; }

/* handwritten note above each card (deepnote card-note) */
.card-note {
  position: absolute; top: -60px; left: 50%; translate: -50% 0; rotate: 0deg;
  width: max-content; max-width: 210px; text-align: center;
  font-family: 'Comic Sans MS', 'Segoe Print', var(--display);
  font-size: 14.5px; font-weight: 600; color: var(--slate); line-height: 1.3;
  animation: noteFloaty 6s ease-in-out infinite;
}
.card-note .note-arrow { display: block; margin: 3px auto 0; width: 30px; height: 27px; fill: none; stroke: var(--faint); stroke-width: 1.6; stroke-linecap: round; stroke-linejoin: round; }
.hc.stack-left .card-note { rotate: 6deg; }
.hc.stack-right .card-note { rotate: -6deg; }
@keyframes noteFloaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-6px); } }

/* card chrome */
.hc-art { position: relative; border-radius: 16px; padding: 16px 16px 14px; }
.hc-art.light {
  background: #fff; border: 1px solid rgba(20, 24, 31, .08);
  box-shadow: 0 1px 2px rgba(20, 24, 31, .05), 0 26px 52px -20px rgba(13, 27, 62, .25);
}
.hc-art.dark {
  background: linear-gradient(180deg, #101A33, #0C142A);
  border: 1px solid rgba(123, 97, 255, .28);
  box-shadow: 0 1px 2px rgba(8, 12, 24, .3), 0 26px 52px -20px rgba(13, 27, 62, .5);
  color: #D9E2F5;
}
.hc-art.dark::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 54px;
  background: linear-gradient(180deg, transparent, rgba(123, 97, 255, .18));
  border-radius: 0 0 15px 15px; pointer-events: none;
}
.art-bar { display: flex; align-items: center; justify-content: space-between; gap: 10px; padding-bottom: 10px; margin-bottom: 12px; border-bottom: 1px solid rgba(20, 24, 31, .08); }
.filename { font-family: var(--mono); font-size: 12px; color: var(--ink-2); display: inline-flex; align-items: center; gap: 8px; min-width: 0; }
.live-badge { font-style: normal; font-family: var(--font); font-weight: 800; font-size: 9px; letter-spacing: .07em; text-transform: uppercase; color: var(--blue); background: var(--blue-soft); padding: 3px 7px; border-radius: 6px; }
.badge { width: 26px; height: 26px; border-radius: 50%; background: var(--blue); color: #fff; display: inline-flex; align-items: center; justify-content: center; flex: none; }
.badge:has(.g) { background: var(--green); }
.badge:has(.p) { background: var(--purple); }
.av-ini { font-size: 10px; font-weight: 700; font-family: var(--display); }

/* humans: taskflow checks */
.api-checks { display: grid; gap: 8px; padding: 2px 0 4px; }
.api-checks > div { display: flex; align-items: center; gap: 8px; }
.api-checks .mono { font-size: 11.5px; color: var(--ink-2); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.api-checks b { margin-left: auto; color: var(--green); font-size: 9.5px; font-weight: 800; letter-spacing: .07em; text-transform: uppercase; flex: none; }
.ck { width: 16px; height: 16px; flex: none; border-radius: 50%; background: var(--green-soft); position: relative; }
.ck::before { content: "✓"; position: absolute; inset: 0; display: grid; place-items: center; font-size: 9.5px; font-weight: 800; color: var(--green); font-style: normal; }

/* humans: veilchat chat */
.chat-stream { display: grid; gap: 8px; padding: 2px 0 4px; }
.bubble { max-width: 88%; padding: 8px 12px; border-radius: 13px; font-size: 12.5px; line-height: 1.45; }
.bubble.in  { justify-self: start; background: var(--tint); color: var(--ink-2); border-bottom-left-radius: 4px; }
.bubble.out { justify-self: end; background: var(--blue); color: #fff; border-bottom-right-radius: 4px; }
.crypto-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 12px 0; }
.crypto-chips span { font-family: var(--mono); font-size: 10.5px; font-weight: 500; color: #0B7A54; background: var(--green-soft); padding: 4px 9px; border-radius: 8px; }

/* humans: textsense request + bars */
.code-block { background: var(--tint); border-radius: 10px; padding: 10px 12px; font-family: var(--mono); font-size: 11.5px; line-height: 1.65; color: var(--ink-2); margin-bottom: 12px; }
.code-block .lab { display: block; font-size: 9px; font-weight: 700; letter-spacing: .09em; text-transform: uppercase; color: var(--faint); margin-bottom: 4px; }
.code-block .k { color: var(--blue); font-weight: 700; }
.hbars { display: grid; gap: 8px; margin-bottom: 4px; }
.hbar { display: flex; align-items: center; gap: 8px; font-size: 11px; }
.hbar label { width: 62px; flex: none; color: var(--muted); }
.hbar .track { flex: 1; height: 8px; border-radius: 99px; background: var(--tint); overflow: hidden; }
.hbar .track i { display: block; height: 100%; border-radius: 99px; background: var(--blue); }
.hbar.tr .track i { background: var(--pink); }
.hbar b { width: 62px; flex: none; text-align: right; font-size: 11px; color: var(--ink); }

/* status pill */
.art-pill { display: inline-flex; align-items: center; gap: 8px; margin-top: 12px; padding: 6px 12px; border-radius: 99px; background: var(--soft); border: 1px solid var(--border); font-size: 11px; font-weight: 600; color: var(--slate); max-width: 100%; }
.art-pill .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--green); flex: none; }
.art-pill.inv { background: rgba(123, 97, 255, .12); border-color: rgba(123, 97, 255, .3); color: #C9BFFF; }
.art-pill.inv .dot { background: #A78BFA; }

/* agents: dark terminal chrome */
.term-head { display: flex; align-items: center; gap: 6px; padding-bottom: 10px; margin-bottom: 12px; border-bottom: 1px solid rgba(255, 255, 255, .09); }
.tdot { width: 9px; height: 9px; border-radius: 50%; flex: none; }
.tdot:nth-of-type(1) { background: #FF5F57; }
.tdot:nth-of-type(2) { background: #FEBC2E; }
.tdot:nth-of-type(3) { background: #28C840; }
.term-title { margin-left: 6px; font-family: var(--mono); font-size: 11px; color: #93A5C9; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.term-body { font-family: var(--mono); font-size: 12px; line-height: 1.9; color: #D9E2F5; }
.term-body .tp { color: #6EE7B7; font-weight: 700; }
.term-body .t-dim { color: #8FA3C8; }
.term-body .t-ok { color: #6EE7B7; }
.sandbox-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 6px; margin: 2px 0 12px; }
.sb { font-family: var(--mono); font-size: 10px; text-align: center; padding: 7px 0; border-radius: 7px; background: rgba(255, 255, 255, .05); border: 1px solid rgba(255, 255, 255, .08); color: #93A5C9; }
.sb.done { color: #6EE7B7; background: rgba(16, 185, 129, .10); border-color: rgba(16, 185, 129, .22); }
.sb.run { color: #93C5FD; background: rgba(59, 130, 246, .12); border-color: rgba(59, 130, 246, .26); }
.routes { display: grid; gap: 9px; margin: 2px 0 12px; }
.routes > div { display: flex; align-items: center; gap: 8px; font-size: 12px; }
.routes b { width: 50px; flex: none; color: #fff; font-size: 11.5px; font-family: var(--display); }
.routes .arr { color: #A78BFA; flex: none; }
.routes .mono { font-size: 10.5px; color: #AAB8D8; }
.term-line.ok { font-size: 10.5px; color: #6EE7B7; padding-top: 9px; border-top: 1px dashed rgba(255, 255, 255, .13); position: relative; }

.lede {
  font-size: clamp(16.5px, 1.5vw, 19px);
  color: var(--muted); max-width: 640px;
  margin: 14px auto 0; line-height: 1.65;
}
.lede strong { color: var(--ink); font-weight: 600; }
.hero-cta { display: flex; gap: 12px; justify-content: center; margin-top: 20px; flex-wrap: wrap; }
.hero-meta {
  list-style: none; display: flex; gap: 30px; justify-content: center;
  padding: 0; margin: 20px 0 0; flex-wrap: wrap;
}
.hero-meta li { font-size: 14.5px; color: var(--faint); font-weight: 500; }
.hero-meta strong { color: var(--ink); font-weight: 700; font-family: var(--display); }

/* ---------- Sections ---------- */
.section { padding: 44px 0; }
.section.soft { background: linear-gradient(180deg, var(--soft), #FDFEFF 60%); }
.section-head { max-width: 780px; margin-bottom: 24px; }
.section-head .lede { margin: 10px 0 0; }
.section-head h2 { margin-top: 2px; }

/* ---------- Stories / laptop ---------- */
.stories-section { padding: 14px 0 10px; }
.vibe-stories-container { max-width: 1120px; margin: 0 auto; padding: 0 20px 0; text-align: center; }
.section-header { margin-bottom: 12px; }
.section-headline { font-size: clamp(25px, 3.2vw, 38px); }
.highlight {
  background: linear-gradient(120deg, var(--blue), #5A8BFF);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
}
.section-sub { font-size: 16px; color: var(--muted); max-width: 700px; margin: 8px auto 0; }

.laptop-wrapper { position: relative; width: 100%; }
.laptop-container {
  position: relative; isolation: isolate;
  width: 100%; max-width: 740px; margin: 0 auto;
  aspect-ratio: 1400 / 813;
  transition: transform .5s var(--ease);
}
.laptop-frame {
  position: relative; z-index: 10; width: 100%; max-width: 100%; height: auto;
  aspect-ratio: 1400 / 813; display: block; object-fit: contain; pointer-events: none;
  filter: drop-shadow(0 18px 22px rgba(13, 27, 62, .14)) drop-shadow(0 44px 80px rgba(13, 27, 62, .18));
}
.screen-content {
  position: absolute; z-index: 1;
  top: var(--screen-top); left: var(--screen-left);
  width: var(--screen-width); height: var(--screen-height);
  background: #0b0b0f; overflow: hidden;
  perspective: 1000px; transform: translateZ(0); -webkit-transform: translateZ(0);
}
.screen-link { position: absolute; inset: 0; display: block; background: transparent; overflow: hidden; border-radius: inherit; }
.screen-link:focus, .screen-link:focus-visible { outline: none; }
.screen-image-wrapper { position: absolute; inset: 0; overflow: hidden; border-radius: inherit; }
.screen-image {
  position: absolute; inset: 0; display: block;
  width: 100%; height: 100%; min-width: 100%; min-height: 100%;
  max-width: 100%; max-height: 100%;
  object-fit: cover; object-position: center;
}
.slide-left-enter-active, .slide-left-leave-active,
.slide-right-enter-active, .slide-right-leave-active {
  transition: transform 0.6s cubic-bezier(0.25, 1, 0.5, 1);
  will-change: transform;
}
.slide-left-enter-from { transform: translateX(100%); }
.slide-left-leave-to { transform: translateX(-100%); }
.slide-right-enter-from { transform: translateX(-100%); }
.slide-right-leave-to { transform: translateX(100%); }

/* always-visible slider controls */
.nav-btn {
  position: absolute; top: 42%; transform: translateY(-50%); z-index: 20;
  background: rgba(255, 255, 255, .92);
  backdrop-filter: blur(8px); -webkit-backdrop-filter: blur(8px);
  border: 1px solid rgba(20,24,31,.08);
  border-radius: 50%; width: 44px; height: 44px;
  display: flex; align-items: center; justify-content: center;
  cursor: pointer; color: var(--ink);
  opacity: 1;
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), background .2s ease;
  box-shadow: 0 4px 14px rgba(13, 27, 62, .22), 0 1px 3px rgba(13, 27, 62, .14);
}
.nav-btn:hover { background: #fff; transform: translateY(-50%) scale(1.1); box-shadow: 0 8px 22px rgba(13, 27, 62, .28); }
.nav-btn.prev { left: 18px; }
.nav-btn.next { right: 18px; }

.indicators { display: flex; align-items: center; justify-content: center; gap: 8px; margin-top: 14px; }
.indicator-dot {
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--border-2); border: none; padding: 0; cursor: pointer;
  transition: all .3s ease;
}
.indicator-dot:hover { background: var(--faint); }
.indicator-dot.active { width: 26px; border-radius: 5px; background: var(--blue); }

/* --- annotations (Deepnote handwritten vibe) --- */
.annotation {
  position: absolute; z-index: 30; display: flex; align-items: center; gap: 10px;
  font-family: 'Comic Sans MS', 'Segoe Print', var(--display);
  font-size: 15px; font-weight: 600; color: var(--slate);
  max-width: 150px; line-height: 1.35; text-align: left;
  animation: floaty 5.5s ease-in-out infinite;
}
.annotation svg { flex: none; color: var(--faint); }
.annotation-left  { left: max(16px, calc(50% - 560px)); top: 16%; }
.annotation-right { right: max(16px, calc(50% - 560px)); top: 22%; flex-direction: row-reverse; text-align: right; animation-delay: -2.7s; }
@keyframes floaty { 0%, 100% { transform: translateY(0); } 50% { transform: translateY(-9px); } }

/* ---------- Marquee ---------- */
.strip { padding: 16px 0 18px; border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); background: var(--white); overflow: hidden; }
.strip-label {
  text-align: center; font-size: 12.5px; font-weight: 700;
  letter-spacing: .14em; text-transform: uppercase; color: var(--faint);
  margin-bottom: 10px;
}
.marquee {
  overflow: hidden;
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
          mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
}
.marquee-track { display: flex; width: max-content; animation: marquee 36s linear infinite; }
.marquee:hover .marquee-track { animation-play-state: paused; }
@keyframes marquee { from { transform: translateX(0); } to { transform: translateX(-50%); } }
.strip-pills {
  list-style: none; display: flex; align-items: center; gap: 12px;
  padding: 0 6px; margin: 0; flex: none;
}
.strip-pills li {
  font-family: var(--mono); font-size: 14px; font-weight: 500; color: var(--slate);
  background: var(--tint); border: 1px solid var(--border);
  padding: 7px 15px; border-radius: 999px; white-space: nowrap;
  transition: border-color .2s, color .2s, background .2s;
}
.strip-pills li:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-soft); }
.dot-sep { width: 5px !important; height: 5px; padding: 0 !important; border: none !important; background: var(--border-2) !important; border-radius: 50%; }

/* ---------- Projects — compact repo tiles ---------- */
#projects { padding-top: 36px; }
.repo-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px;
}
.repo-tile {
  display: flex; flex-direction: column; gap: 5px;
  min-width: 0;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 15px 16px;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .25s ease;
}
.repo-tile:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-2); }
.rt-row { display: flex; align-items: center; gap: 9px; min-width: 0; }
.rt-dot { width: 10px; height: 10px; border-radius: 50%; flex: none; }
.rt-name {
  font-family: var(--display); font-weight: 600; font-size: 15.5px;
  color: var(--ink); letter-spacing: -.01em;
  flex: 1 1 auto; min-width: 0;
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.rt-arrow {
  width: 15px; height: 15px; margin-left: 0; flex: none;
  color: var(--faint);
  opacity: 0; transform: translate(-3px, 3px);
  transition: opacity .25s ease, transform .25s var(--ease), color .2s;
}
.repo-tile:hover .rt-arrow { opacity: 1; transform: none; color: var(--blue); }
.rt-lang { font-size: 12.5px; font-weight: 600; color: var(--faint); padding-left: 19px; }
.section .center { margin-top: 20px; }

/* ---------- Skills — compact linked tiles ---------- */
.skill-bento { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 12px; }
.skill {
  display: block;
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 16px 18px;
  text-decoration: none;
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), border-color .25s ease;
}
.skill:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); border-color: var(--border-2); }
.skill h3 {
  font-family: var(--display); font-size: 16px; margin-bottom: 4px;
  letter-spacing: -.01em; color: var(--ink);
}
.skill p { color: var(--muted); font-size: 13.5px; line-height: 1.5; }
.skill-icon {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  display: inline-flex; align-items: center; justify-content: center;
  margin-bottom: 10px;
}
.skill-icon svg { width: 17px; height: 17px; }
.ic-purple { background: var(--purple-soft); color: var(--purple); }
.ic-blue   { background: var(--blue-soft); color: var(--blue); }
.ic-green  { background: var(--green-soft); color: var(--green); }
.ic-orange { background: var(--amber-soft); color: var(--amber); }
.ic-pink   { background: var(--pink-soft); color: var(--pink); }

/* ---------- Agentic — compact agent cards ---------- */
.agent-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 12px; }
.agent-card {
  background: var(--white); border: 1px solid var(--border);
  border-radius: var(--r-md); padding: 18px;
  box-shadow: var(--shadow-sm);
  transition: transform .3s var(--ease), box-shadow .3s var(--ease);
}
.agent-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.agent-card h3 {
  font-family: var(--display); font-size: 16.5px; letter-spacing: -.01em;
  margin-bottom: 6px;
}
.agent-card p { color: var(--muted); font-size: 13.5px; line-height: 1.55; }

/* ---------- About ---------- */
.about-grid { display: grid; grid-template-columns: 5fr 7fr; gap: 44px; align-items: center; }
.about-media { display: flex; flex-direction: column; gap: 22px; }
.about-card {
  position: relative; max-width: 300px; margin: 0 auto;
  border-radius: var(--r-lg); padding: 12px;
  background: linear-gradient(160deg, #fff, var(--tint));
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  transform: rotate(-2deg);
  transition: transform .45s var(--ease);
}
.about-card:hover { transform: rotate(0deg) translateY(-4px); }
.about-card img { display: block; width: 100%; border-radius: 16px; }
.about-float {
  position: absolute; font-size: 12px; font-weight: 600;
  background: var(--white); border: 1px solid var(--border);
  border-radius: 999px; padding: 7px 13px;
  box-shadow: var(--shadow-md); color: var(--slate);
  animation: floaty 6s ease-in-out infinite;
}
.about-float-a { top: -13px; right: -24px; }
.about-float-b { bottom: -11px; left: -26px; animation-delay: -3s; }
.stats {
  list-style: none; display: grid; grid-template-columns: repeat(3, 1fr); gap: 12px;
  padding: 0; margin: 0;
}
.stats li {
  background: var(--white); border: 1px solid var(--border); border-radius: var(--r-md);
  padding: 14px 8px; text-align: center; box-shadow: var(--shadow-sm);
}
.stats strong { display: block; font-family: var(--display); font-size: 23px; color: var(--ink); letter-spacing: -.02em; }
.stats span { font-size: 12.5px; color: var(--faint); font-weight: 500; }
.about-copy .lede { margin: 18px 0 0; max-width: 620px; }
.about-copy p + p { margin-top: 14px; }
.about-copy p { color: var(--muted); }
.about-copy strong { color: var(--ink); font-weight: 600; }
.about-links { display: flex; gap: 12px; margin-top: 22px; flex-wrap: wrap; }

/* ---------- Contact ---------- */
#contact { position: relative; overflow: clip; }
.contact-bg { position: relative; }
.contact-glow {
  position: absolute; left: 50%; top: 50%; transform: translate(-50%, -50%);
  width: min(900px, 96vw); height: 420px; border-radius: 50%;
  background: radial-gradient(closest-side, var(--blue-glow), transparent 72%);
  filter: blur(40px); pointer-events: none;
}
.cta { position: relative; text-align: center; padding: 8px 0 0; }
.cta p { color: var(--muted); font-size: 18px; margin-top: 14px; }
.center-cta { margin-top: 20px; }

/* ---------- Footer ---------- */
.footer { border-top: 1px solid var(--border); padding: 28px 0; background: var(--white); }
.footer-inner { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; font-size: 14px; color: var(--faint); }
.footer-dim a { color: var(--slate); }
.footer-links { display: flex; gap: 22px; }
.footer-links a { color: var(--slate); text-decoration: none; font-weight: 500; }
.footer-links a:hover { color: var(--blue); }

/* ---------- Reveal animations (progressive: only when JS is present) ---------- */
html.js .reveal { opacity: 0; transform: translateY(22px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
html.js .reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  html.js .reveal { opacity: 1; transform: none; transition: none; }
  .marquee-track { animation: none; }
  .annotation, .about-float, .pill .dot { animation: none; }
  .hero-toggle .lens, .hero-state, .hero-state > * { transition: none; }
  .hero-state { transform: none; }
  .hero-state > * { translate: none; }
  .hc-row, .hc { transition: none; }
  .hc-row { transform: none; }
  .hc { translate: none; }
  .card-note { animation: none; }
}

/* ---------- Responsive ---------- */
@media (max-width: 1080px) {
  .repo-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .agent-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .skill-bento { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .annotation { display: none; }
  .hc { width: 360px; }
  .hc.stack-center { width: 380px; margin-left: -190px; }
  .hc.stack-left { left: calc(50% - 480px); }
  .hc.stack-right { right: calc(50% - 480px); }
}
@media (max-width: 900px) {
  .about-grid { grid-template-columns: 1fr; gap: 34px; }
}
@media (max-width: 760px) {
  .container { padding: 0 20px; }
  .nav-links {
    position: fixed; top: 64px; left: 0; right: 0;
    background: rgba(255,255,255,.97); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    flex-direction: column; align-items: flex-start; gap: 4px;
    padding: 14px 24px 20px; display: none; box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-links > a:not(.btn) { padding: 10px 0; font-size: 16px; width: 100%; }
  .nav-gh { margin: 8px 0 0; }
  .burger { display: flex; }
  .hero { padding: 36px 0 0; }
  .section { padding: 36px 0; }
  .section-head { margin-bottom: 22px; }
  .hero-toggle .opt { font-size: 15px; padding: 10px 20px; }
  .hero-meta { gap: 16px; }
  .hero-cards { height: 400px; margin-top: 14px; }
  .hc.stack-left, .hc.stack-right { display: none; }
  .hc.stack-center { width: 86%; max-width: 420px; margin-left: 0; left: 50%; transform: translateX(-50%); top: 68px; }
  .bubble { font-size: 11.5px; padding: 7px 10px; }
  .stories-section { padding: 10px 0 20px; }
  .nav-btn { width: 38px; height: 38px; }
  .nav-btn.prev { left: 10px; }
  .nav-btn.next { right: 10px; }
  .repo-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
  .skill-bento { grid-template-columns: 1fr; }
  .agent-grid { grid-template-columns: 1fr; }
  .stats { grid-template-columns: repeat(3, 1fr); }
  .about-card { transform: none; max-width: 280px; }
  .footer-inner { flex-direction: column; text-align: center; }
}