/* ═══════════════════════════════════════════════════════════
   CON DEV — Portfolio landing
   01 tokens · 02 reset · 03 primitives · 04 layout
   05 header · 06 hero · 07 work · 08 ledger
   09 cta · 10 footer · 11 responsive
   ═══════════════════════════════════════════════════════════ */

/* ── 01 · TOKENS ─────────────────────────────────────────── */
:root {
  --paper: #F7F7F5;
  --surface: #FFFFFF;
  --surface-2: #F1F1EE;

  --ink: #0E0F12;
  --ink-2: #3A3D44;
  --ink-3: #696D76;

  --hair: #E4E4DF;
  --hair-2: #EFEFEB;
  --hair-dark: #262931;

  --accent: #FF4A1C;
  --accent-ink: #C63410;

  --dark: #101116;
  --dark-2: #16181D;
  --on-dark: #F4F4F2;
  --on-dark-2: #9DA2AB;

  --ok: #17845A;

  --r-btn: 12px;
  --r-card: 20px;
  --r-panel: 24px;
  --r-tile: 14px;

  --maxw: 1160px;
  --gut: clamp(20px, 4vw, 48px);

  --e: cubic-bezier(.22, 1, .36, 1);
  --d-1: .16s;
  --d-2: .22s;

  --sh-1: 0 1px 2px rgba(14, 15, 18, .04);
  --sh-2: 0 16px 32px -24px rgba(14, 15, 18, .28);

  --f-fa: "Vazirmatn", system-ui, -apple-system, "Segoe UI", sans-serif;
  --f-en: "Bricolage Grotesque", ui-sans-serif, system-ui, sans-serif;
}

/* ── 02 · RESET ──────────────────────────────────────────── */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 96px;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink-2);
  font-family: var(--f-fa);
  font-size: 1rem;
  font-weight: 400;
  line-height: 1.9;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3, h4 {
  margin: 0;
  color: var(--ink);
  font-weight: 800;
  line-height: 1.25;
  letter-spacing: -.01em;
}

p { margin: 0; }
ul { margin: 0; padding: 0; list-style: none; }
a { color: inherit; text-decoration: none; }
img, svg { display: block; max-width: 100%; }
button { font: inherit; }

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

::selection { background: var(--ink); color: var(--paper); }

.en {
  font-family: var(--f-en);
  font-variant-numeric: tabular-nums;
  letter-spacing: .02em;
}

.skip {
  position: absolute;
  inset-inline-start: 16px;
  top: -64px;
  z-index: 200;
  padding: 10px 18px;
  border-radius: var(--r-btn);
  background: var(--ink);
  color: var(--on-dark);
  font-size: .85rem;
  transition: top var(--d-2) var(--e);
}
.skip:focus { top: 16px; }

/* ── 03 · PRIMITIVES ─────────────────────────────────────── */
.kicker {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 18px;
  color: var(--ink-3);
  font-size: .78rem;
  font-weight: 500;
  letter-spacing: .04em;
}
.kicker-dot {
  width: 6px;
  height: 6px;
  flex: none;
  border-radius: 50%;
  background: var(--accent);
}
.kicker--on-dark { color: var(--on-dark-2); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 0 24px;
  border: 1px solid transparent;
  border-radius: var(--r-btn);
  font-size: .9rem;
  font-weight: 600;
  white-space: nowrap;
  cursor: pointer;
  transition: background-color var(--d-2) var(--e),
              border-color var(--d-2) var(--e),
              color var(--d-2) var(--e),
              transform var(--d-2) var(--e),
              box-shadow var(--d-2) var(--e);
}
.btn .ico { width: 16px; height: 16px; flex: none; }
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--sm { min-height: 42px; padding: 0 18px; font-size: .85rem; }

.btn--dark {
  background: var(--ink);
  color: var(--on-dark);
  box-shadow: var(--sh-1);
}
.btn--dark:hover { background: #23252C; box-shadow: var(--sh-2); }

.btn--ghost {
  background: transparent;
  border-color: var(--hair);
  color: var(--ink);
}
.btn--ghost:hover { background: var(--surface-2); border-color: #D3D4CE; }

.btn--light {
  background: var(--paper);
  color: var(--ink);
}
.btn--light:hover { background: #FFFFFF; }

.btn--outline-light {
  background: transparent;
  border-color: var(--hair-dark);
  color: var(--on-dark);
}
.btn--outline-light:hover { background: rgba(255, 255, 255, .06); border-color: #3A3E48; }

.chip {
  display: inline-flex;
  align-items: center;
  height: 26px;
  padding: 0 11px;
  border: 1px solid var(--hair);
  border-radius: 999px;
  background: var(--surface-2);
  color: var(--ink-3);
  font-size: .74rem;
  font-weight: 500;
  line-height: 1;
}

/* ── 04 · LAYOUT ─────────────────────────────────────────── */
.wrap {
  width: min(var(--maxw), 100% - var(--gut) * 2);
  margin-inline: auto;
}

.section { padding-block: 96px; }
.section--tight { padding-block: 0 96px; }

.section-head {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: end;
  gap: 24px 48px;
  padding-bottom: 28px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--hair);
}
.section-head h2 { font-size: clamp(1.7rem, 3vw, 2.4rem); }
.section-note {
  max-width: 40ch;
  color: var(--ink-3);
  font-size: .88rem;
  line-height: 1.8;
}

/* ── 05 · HEADER ─────────────────────────────────────────── */
.site-header {
  position: sticky;
  top: 0;
  z-index: 90;
  border-bottom: 1px solid transparent;
  transition: background-color var(--d-2) var(--e), border-color var(--d-2) var(--e);
}
.site-header.is-stuck {
  background: rgba(247, 247, 245, .86);
  border-bottom-color: var(--hair);
}
@supports (backdrop-filter: blur(4px)) {
  .site-header.is-stuck { backdrop-filter: saturate(160%) blur(14px); }
}

.header-in {
  display: flex;
  align-items: center;
  gap: 20px;
  padding-block: 14px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-inline-end: auto;
}
.brand-mark {
  width: 40px;
  height: 40px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 11px;
  background: var(--ink);
  color: var(--paper);
}
.brand-mark svg { width: 20px; height: 20px; }
.brand-txt { display: flex; flex-direction: column; line-height: 1.3; }
.brand-txt b {
  font-family: var(--f-en);
  font-size: .92rem;
  font-weight: 800;
  letter-spacing: .16em;
  color: var(--ink);
}
.brand-txt span { color: var(--ink-3); font-size: .74rem; }

.nav {
  display: flex;
  align-items: center;
  gap: 26px;
  font-size: .88rem;
}
.nav a {
  position: relative;
  padding-block: 4px;
  color: var(--ink-2);
  transition: color var(--d-1) var(--e);
}
.nav a::after {
  content: "";
  position: absolute;
  inset-inline: 0;
  bottom: 0;
  height: 1px;
  background: var(--accent);
  transform: scaleX(0);
  transform-origin: inline-end;
  transition: transform var(--d-2) var(--e);
}
.nav a:hover { color: var(--ink); }
.nav a:hover::after { transform: scaleX(1); }

/* ── 06 · HERO ───────────────────────────────────────────── */
.hero { padding-block: 72px 96px; }

.hero-in {
  display: grid;
  grid-template-columns: 1.05fr .95fr;
  align-items: center;
  gap: clamp(32px, 5vw, 72px);
}

.hero h1 {
  font-size: clamp(2.4rem, 5.2vw, 3.9rem);
  font-weight: 800;
  line-height: 1.16;
  letter-spacing: -.022em;
}
.ink-accent { color: var(--accent-ink); }

.hero .lead {
  max-width: 46ch;
  margin-top: 24px;
  color: var(--ink-2);
  font-size: clamp(1rem, 1.1vw, 1.1rem);
  line-height: 2;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 32px;
}

.hero-facts {
  display: flex;
  flex-wrap: wrap;
  gap: 12px 36px;
  margin-top: 40px;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
  color: var(--ink-3);
  font-size: .85rem;
}
.hero-facts b { color: var(--ink); font-weight: 700; }

/* dark showcase panel */
.hero-panel {
  padding: 24px;
  border-radius: var(--r-panel);
  background: var(--dark);
  box-shadow: var(--sh-2);
}
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--hair-dark);
}
.panel-label {
  font-family: var(--f-en);
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--on-dark-2);
}
.panel-count {
  font-family: var(--f-en);
  font-size: .82rem;
  font-weight: 700;
  color: var(--accent);
}

.tile-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  padding-block: 18px;
}
.tile {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 10px;
  border: 1px solid var(--hair-dark);
  border-radius: var(--r-tile);
  background: var(--dark-2);
}
.tile-art { display: grid; place-items: center; aspect-ratio: 1; }
.tile-art svg { width: 100%; height: 100%; }
.tile-name {
  color: var(--on-dark-2);
  font-size: .6rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-align: center;
}
.tile:nth-child(4) { grid-column: span 1; }
.tile:nth-child(5) { grid-column: span 2; }
.tile:nth-child(5) .tile-art { aspect-ratio: 2.1 / 1; }

.panel-foot {
  display: flex;
  align-items: center;
  gap: 9px;
  padding-top: 18px;
  border-top: 1px solid var(--hair-dark);
  color: var(--on-dark-2);
  font-size: .78rem;
}
.live-dot {
  width: 7px;
  height: 7px;
  flex: none;
  border-radius: 50%;
  background: var(--ok);
  box-shadow: 0 0 0 3px rgba(23, 132, 90, .2);
}

/* ── 07 · WORK ───────────────────────────────────────────── */
.work-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}

.card {
  grid-column: span 2;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  border: 1px solid var(--hair);
  border-radius: var(--r-card);
  background: var(--surface);
  box-shadow: var(--sh-1);
  transition: border-color var(--d-2) var(--e),
              box-shadow var(--d-2) var(--e),
              transform var(--d-2) var(--e);
}
.card.is-featured { grid-column: span 3; }
.card:hover {
  transform: translateY(-2px);
  border-color: rgba(14, 15, 18, .18);
  box-shadow: var(--sh-2);
}

.card-visual {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 10;
  padding: 26px;
  border-bottom: 1px solid var(--hair-2);
  background: var(--surface-2);
}
.card.is-featured .card-visual { aspect-ratio: 16 / 9; }
.card-visual svg {
  width: 100%;
  height: 100%;
  max-width: 220px;
  max-height: 100%;
}

.card-body {
  display: flex;
  flex-direction: column;
  gap: 14px;
  flex: 1;
  padding: 22px;
}
.card-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}
.idx {
  color: var(--accent-ink);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
}
.card-tag { color: var(--ink-3); font-size: .76rem; }

.card-title { display: flex; align-items: baseline; gap: 10px; }
.card-title h3 { font-size: 1.2rem; }
.name-en { color: var(--ink-3); font-size: .78rem; font-weight: 500; }

.card-desc {
  color: var(--ink-2);
  font-size: .88rem;
  line-height: 1.9;
}

.card-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: auto;
  padding-top: 16px;
  border-top: 1px solid var(--hair-2);
}
.chips { display: flex; flex-wrap: wrap; gap: 6px; }
.go {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  flex: none;
  white-space: nowrap;
  color: var(--ink);
  font-size: .85rem;
  font-weight: 600;
}
.go .ico { transition: transform var(--d-2) var(--e); }
.card:hover .go .ico { transform: translateX(-4px); }

/* ── 08 · LEDGER ─────────────────────────────────────────── */
.ledger { border-top: 1px solid var(--hair); }
.ledger-row {
  display: grid;
  grid-template-columns: 76px 1fr;
  gap: 24px;
  padding-block: 28px;
  border-bottom: 1px solid var(--hair);
}
.ledger-row h3 { font-size: 1.05rem; margin-bottom: 6px; }
.ledger-row p {
  max-width: 62ch;
  color: var(--ink-3);
  font-size: .88rem;
  line-height: 1.9;
}
.ledger-idx {
  color: var(--ink-3);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
}

/* ── 09 · CTA ────────────────────────────────────────────── */
.cta {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 32px 48px;
  padding: clamp(28px, 4vw, 48px);
  border-radius: var(--r-panel);
  background: var(--dark);
}
.cta h2 { color: var(--on-dark); font-size: clamp(1.6rem, 2.6vw, 2.2rem); }
.cta p {
  max-width: 52ch;
  margin-top: 14px;
  color: var(--on-dark-2);
  font-size: .9rem;
  line-height: 1.95;
}
.cta-actions { display: flex; flex-wrap: wrap; gap: 12px; }

/* ── 10 · FOOTER ─────────────────────────────────────────── */
.site-footer {
  margin-top: 96px;
  padding-block: 56px 24px;
  border-top: 1px solid var(--hair);
}
.footer-in {
  display: grid;
  grid-template-columns: minmax(220px, .8fr) 2fr;
  gap: 32px 48px;
}
.footer-brand b { font-size: 1rem; letter-spacing: .16em; }
.footer-note {
  margin-top: 10px;
  max-width: 34ch;
  color: var(--ink-3);
  font-size: .84rem;
  line-height: 1.85;
}
.footer-links {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
  gap: 4px 16px;
  align-content: start;
}
.footer-links a {
  min-height: 36px;
  display: inline-flex;
  align-items: center;
  color: var(--ink-2);
  font-size: .85rem;
  transition: color var(--d-1) var(--e);
}
.footer-links a:hover { color: var(--accent-ink); }

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-top: 44px;
  padding-top: 20px;
  border-top: 1px solid var(--hair);
  color: var(--ink-3);
  font-size: .78rem;
}

/* ── 11 · RESPONSIVE ─────────────────────────────────────── */
@media (max-width: 1024px) {
  .hero { padding-block: 48px 72px; }
  .hero-in { grid-template-columns: 1fr; gap: 40px; }
  .hero-panel { width: 100%; max-width: 520px; }
  .work-grid { grid-template-columns: repeat(4, 1fr); }
  .card.is-featured { grid-column: span 4; }
  .card { grid-column: span 2; }
  .cta { grid-template-columns: 1fr; }
  .footer-in { grid-template-columns: 1fr; }
}

@media (min-width: 721px) and (max-width: 1024px) {
  .work-grid > .card:nth-child(5) { grid-column: span 4; }
}

@media (max-width: 720px) {
  .section { padding-block: 64px; }
  .section--tight { padding-block: 0 64px; }
  .section-head { grid-template-columns: 1fr; align-items: start; }
  .nav { display: none; }
  .hero h1 { font-size: clamp(2rem, 8vw, 2.6rem); }
  .hero-actions .btn { flex: 1 1 100%; }
  .work-grid { grid-template-columns: 1fr; }
  .card,
  .card.is-featured { grid-column: span 1; }
  .card-visual,
  .card.is-featured .card-visual { aspect-ratio: 16 / 9; padding: 22px; }
  .card-meta { flex-direction: column; align-items: flex-start; }
  .ledger-row { grid-template-columns: 1fr; gap: 8px; }
  .site-footer { margin-top: 64px; }
  .footer-bottom { justify-content: center; text-align: center; }
}

@media (max-width: 460px) {
  .brand-txt span { display: none; }
  .tile-grid { grid-template-columns: repeat(3, 1fr); gap: 8px; }
  .hero-panel { padding: 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    transition-duration: .001ms !important;
    animation-duration: .001ms !important;
    animation-iteration-count: 1 !important;
  }
  .btn:hover,
  .card:hover { transform: none; }
}