/* ============================================
   App Code — Design System
   ============================================ */

:root {
  /* Core palette (warm off-white + orange) */
  --bg:        #f5f1ea;
  --bg-elev:  #ede6da;
  --bg-deep:   #1a1814;
  --ink:       #1a1814;
  --ink-soft:  #3c362d;
  --muted:     #7a7265;
  --line:      #d9d0c0;
  --line-soft: #e4dccb;
  --accent:    #ff5a1f;
  --accent-ink: #ffffff;
  --success:   #2e5d3f;

  /* Type */
  --font-display: "Instrument Serif", "Times New Roman", serif;
  --font-ui:      "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-mono:    "JetBrains Mono", ui-monospace, "SF Mono", Menlo, monospace;

  /* Spacing scale */
  --s-1: 4px;
  --s-2: 8px;
  --s-3: 12px;
  --s-4: 16px;
  --s-5: 24px;
  --s-6: 32px;
  --s-7: 48px;
  --s-8: 64px;
  --s-9: 96px;
  --s-10: 128px;

  /* Radii */
  --r-s: 4px;
  --r-m: 8px;
  --r-l: 16px;
  --r-xl: 24px;

  /* Content width */
  --content: 1240px;
  --narrow: 880px;

  --ease: cubic-bezier(.2,.7,.2,1);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-ui);
  background: var(--bg);
  color: var(--ink);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  font-feature-settings: "ss01", "cv11";
}

a { color: inherit; text-decoration: none; }

img, svg { display: block; max-width: 100%; }

button { font: inherit; cursor: pointer; border: none; background: none; color: inherit; }

/* ---- Typography ---- */
.display {
  font-family: var(--font-display);
  font-weight: 400;
  letter-spacing: -0.02em;
  line-height: 0.98;
  font-style: normal;
}

.italic { font-style: italic; }

.mono {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--muted);
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.eyebrow::before {
  content: "";
  width: 18px; height: 1px;
  background: var(--muted);
  display: inline-block;
}

h1, h2, h3, h4 { margin: 0; font-weight: 500; }

/* ---- Layout ---- */
.wrap {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 32px;
}

.narrow {
  max-width: var(--narrow);
  margin: 0 auto;
  padding: 0 32px;
}

/* ---- Top Nav ---- */
.nav {
  position: sticky; top: 0; z-index: 1000;
  background: color-mix(in oklab, var(--bg) 88%, transparent);
  backdrop-filter: saturate(160%) blur(16px);
  -webkit-backdrop-filter: saturate(160%) blur(16px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s var(--ease), transform .35s var(--ease);
}
.nav.scrolled { border-bottom-color: var(--line); }
.nav.hidden { transform: translateY(-100%); }

.nav-inner {
  max-width: var(--content); margin: 0 auto;
  padding: 0 32px; height: 60px;
  display: flex; align-items: center;
  justify-content: space-between; gap: 24px;
}

/* Brand */
.brand { display: inline-flex; align-items: center; gap: 10px; flex-shrink: 0; }
.nav .brand-logo { height: 28px !important; width: auto; display: block; max-width: none; transition: filter .3s var(--ease); }
body[data-theme="dark"] .brand-logo, .on-dark .brand-logo { filter: invert(1) hue-rotate(180deg) brightness(1.1); }
.footer .brand-logo { filter: invert(1) hue-rotate(180deg) brightness(1.1); height: 20px; }

/* Desktop links */
.nav-links { display: flex; align-items: center; gap: 2px; }

.nav-link {
  padding: 7px 13px; border-radius: 100px; font-size: 14px;
  color: var(--ink-soft); position: relative;
  transition: background .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.nav-link:hover { color: var(--ink); background: var(--bg-elev); }
.nav-link.active { color: var(--ink); font-weight: 500; }
.nav-link.active::after {
  content: ""; position: absolute;
  bottom: 4px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 4px; border-radius: 50%;
  background: var(--accent);
}

/* Dropdown trigger */
.nav-drop { position: relative; }
.nav-drop-toggle {
  display: flex; align-items: center; gap: 5px;
  padding: 7px 13px; border-radius: 100px; font-size: 14px;
  color: var(--ink-soft); background: none; border: none;
  cursor: pointer; font-family: var(--font-ui);
  transition: background .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.nav-drop-toggle:hover { color: var(--ink); background: var(--bg-elev); }
.nav-drop-toggle.active { color: var(--ink); font-weight: 500; }
.nav-drop-toggle svg { transition: transform .25s var(--ease); }
.nav-drop:hover .nav-drop-toggle svg,
.nav-drop.open .nav-drop-toggle svg { transform: rotate(180deg); }

.nav-dropdown {
  position: absolute; top: calc(100% + 8px); left: 0;
  background: color-mix(in oklab, var(--bg) 75%, transparent);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
  border: 1px solid color-mix(in oklab, var(--line) 60%, transparent);
  border-radius: var(--r-l);
  box-shadow: 0 16px 48px color-mix(in oklab, var(--ink) 10%, transparent);
  padding: 8px;
  min-width: 220px;
  opacity: 0; visibility: hidden; transform: translateY(-6px);
  transition: opacity .25s var(--ease), visibility .25s, transform .25s var(--ease);
  z-index: 10;
}
.nav-drop:hover .nav-dropdown,
.nav-drop.open .nav-dropdown { opacity: 1; visibility: visible; transform: none; }

.nav-dropdown a {
  display: flex; align-items: center; justify-content: space-between;
  padding: 10px 14px; border-radius: 10px; font-size: 14px;
  color: var(--ink-soft);
  transition: background .15s var(--ease), color .15s var(--ease);
}
.nav-dropdown a:hover { background: var(--bg-elev); color: var(--ink); }
.nav-dropdown a .dd-arrow { color: var(--muted); font-size: 12px; transition: transform .15s var(--ease); }
.nav-dropdown a:hover .dd-arrow { transform: translate(2px,-2px); color: var(--accent); }
.nav-dropdown .dd-label { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--muted); padding: 8px 14px 4px; display: block; }
.nav-dropdown hr { border: none; border-top: 1px solid var(--line-soft); margin: 6px 8px; }

/* CTA */
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px; border-radius: 100px;
  border: 1px solid var(--ink); background: var(--ink);
  color: var(--bg); font-size: 13px; font-weight: 500;
  transition: background .2s var(--ease), border-color .2s var(--ease), transform .2s var(--ease);
  white-space: nowrap; flex-shrink: 0;
}
.nav-cta:hover { background: var(--accent); border-color: var(--accent); transform: translateY(-1px); }
.nav-cta .dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--accent) 30%, transparent);
  flex-shrink: 0;
}
.nav-cta:hover .dot { background: rgba(255,255,255,.7); box-shadow: none; }

/* Hamburger button */
.nav-burger {
  display: none; align-items: center; justify-content: center;
  width: 40px; height: 40px; border-radius: 50%;
  background: var(--bg-elev); border: 1px solid var(--line);
  cursor: pointer; flex-shrink: 0;
  transition: background .2s var(--ease);
}
.nav-burger:hover { background: var(--line); }
.burger-icon { display: flex; flex-direction: column; gap: 5px; width: 16px; }
.burger-icon span {
  display: block; height: 1.5px; background: var(--ink); border-radius: 2px;
  transition: transform .3s var(--ease), opacity .2s var(--ease), width .3s var(--ease);
  transform-origin: center;
}
.nav-burger.open .burger-icon span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-burger.open .burger-icon span:nth-child(2) { opacity: 0; }
.nav-burger.open .burger-icon span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* Mobile drawer */
.nav-drawer {
  position: fixed;
  top: 60px; left: 0; right: 0; bottom: 0;
  width: 100%; height: calc(100dvh - 60px);
  z-index: 1000;
  background: color-mix(in oklab, var(--bg) 97%, transparent);
  backdrop-filter: saturate(180%) blur(24px);
  -webkit-backdrop-filter: saturate(180%) blur(24px);
  border-top: 1px solid color-mix(in oklab, var(--line) 60%, transparent);
  padding: 24px 24px 48px;
  display: none;
  flex-direction: column; gap: 4px;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
  transform: translateZ(0);
  -webkit-transform: translateZ(0);
}
.nav-drawer.open { display: flex; }

.drawer-link {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 0; border-bottom: 1px solid var(--line-soft);
  font-family: var(--font-display); font-size: 28px; font-weight: 400;
  color: var(--ink); text-decoration: none;
  transition: color .2s var(--ease);
}
.drawer-link:hover { color: var(--accent); }
.drawer-link .arr { font-size: 16px; color: var(--muted); }
.drawer-link:hover .arr { color: var(--accent); }

.drawer-sub {
  display: grid; grid-template-columns: 1fr 1fr; gap: 8px;
  padding: 12px 0 16px;
}
.drawer-sub a {
  padding: 12px 14px; background: var(--bg-elev);
  border: 1px solid var(--line-soft); border-radius: 12px;
  font-size: 14px; color: var(--ink-soft);
  text-decoration: none; transition: background .2s;
}
.drawer-sub a:hover { background: var(--line); color: var(--ink); }
.drawer-sub a .ds-cat { font-family: var(--font-mono); font-size: 9px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); display: block; margin-bottom: 4px; }

.drawer-cta { margin-top: 20px; }

@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .nav-burger { display: flex; }
}
@media (max-width: 480px) {
  .nav-inner { padding: 0 20px; }
}

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 22px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 500;
  transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease);
  white-space: nowrap;
}
.btn-primary { background: var(--ink); color: var(--bg); }
.btn-primary:hover { background: var(--accent); transform: translateY(-1px); }
.btn-secondary { background: transparent; color: var(--ink); border: 1px solid var(--line); }
.btn-secondary:hover { background: var(--bg-elev); }
.btn-accent { background: var(--accent); color: var(--accent-ink); }
.btn-accent:hover { transform: translateY(-1px); background: var(--ink); }

.btn .arrow {
  display: inline-block;
  transition: transform .2s var(--ease);
}
.btn:hover .arrow { transform: translate(2px, -2px); }

/* ---- Sections ---- */
section { position: relative; }
.section-pad { padding: 96px 0; }
.section-pad-sm { padding: 64px 0; }

.section-head {
  display: grid;
  grid-template-columns: 220px 1fr;
  gap: 48px;
  margin-bottom: 56px;
  align-items: baseline;
}
@media (max-width: 760px) {
  .section-head { grid-template-columns: 1fr; gap: 16px; }
}

.section-num {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  color: var(--muted);
  text-transform: uppercase;
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(40px, 5.2vw, 72px);
  line-height: 0.98;
  letter-spacing: -0.02em;
  max-width: 16ch;
}

/* ---- Footer ---- */
.footer {
  background: var(--bg-deep);
  color: #d9d0c0;
  padding: 96px 0 40px;
  margin-top: 120px;
}
.footer-inner {
  max-width: var(--content);
  margin: 0 auto;
  padding: 0 32px;
}
.footer-big {
  font-family: var(--font-display);
  font-size: clamp(56px, 10vw, 140px);
  line-height: 0.95;
  letter-spacing: -0.03em;
  color: var(--bg);
  margin-bottom: 56px;
}
.footer-big .accent { color: var(--accent); font-style: italic; }

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-top: 48px;
  border-top: 1px solid #2f2a21;
}
@media (max-width: 860px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
.footer-col h5 {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: #8a8276;
  margin: 0 0 16px;
  font-weight: 500;
}
.footer-col a {
  display: block;
  padding: 6px 0;
  color: #d9d0c0;
  font-size: 15px;
  transition: color .2s var(--ease);
}
.footer-col a:hover { color: var(--accent); }
.footer-bottom {
  margin-top: 64px;
  padding-top: 24px;
  border-top: 1px solid #2f2a21;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  font-family: var(--font-mono);
  color: #8a8276;
}
@media (max-width: 600px) {
  .footer-bottom { flex-direction: column; gap: 12px; align-items: flex-start; }
}

/* ---- Reveals ---- */
.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity .8s var(--ease), transform .8s var(--ease);
}
.reveal.in { opacity: 1; transform: none; }

/* ---- Page hero (for inner pages) ---- */
.page-hero {
  padding: 120px 0 72px;
  border-bottom: 1px solid var(--line);
}
.page-hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: end;
}
@media (max-width: 860px) {
  .page-hero-grid { grid-template-columns: 1fr; gap: 32px; }
}
.page-hero h1 {
  font-family: var(--font-display);
  font-size: clamp(56px, 8vw, 120px);
  line-height: 0.95;
  letter-spacing: -0.025em;
}
.page-hero p {
  font-size: 19px;
  line-height: 1.5;
  color: var(--ink-soft);
  max-width: 42ch;
}

/* ---- Cards ---- */
.card {
  background: var(--bg-elev);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-l);
  padding: 28px;
  transition: transform .3s var(--ease), background .3s var(--ease), border-color .3s var(--ease);
}
.card:hover {
  transform: translateY(-2px);
  border-color: var(--line);
}

/* ---- Placeholders (striped) ---- */
.placeholder {
  background:
    repeating-linear-gradient(135deg,
      color-mix(in oklab, var(--ink) 6%, transparent) 0 1px,
      transparent 1px 10px),
    var(--bg-elev);
  border: 1px solid var(--line-soft);
  border-radius: var(--r-m);
  display: grid;
  place-items: center;
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  text-align: center;
  padding: 16px;
}

/* ---- Form ---- */
.field {
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.field label {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--muted);
}
.field input,
.field textarea,
.field select {
  font: inherit;
  padding: 14px 16px;
  border: 1px solid var(--line);
  background: var(--bg);
  border-radius: var(--r-m);
  color: var(--ink);
  outline: none;
  transition: border-color .2s var(--ease), background .2s var(--ease);
}
.field input:focus,
.field textarea:focus,
.field select:focus {
  border-color: var(--ink);
  background: #fff;
}
.field textarea { resize: vertical; min-height: 120px; font-family: inherit; }

/* ---- Tweaks panel ---- */
.tweaks-btn {
  position: fixed;
  right: 20px; bottom: 20px;
  z-index: 100;
  width: 52px; height: 52px;
  border-radius: 50%;
  background: var(--ink);
  color: var(--bg);
  display: none;
  place-items: center;
  box-shadow: 0 12px 30px rgba(0,0,0,.2);
  transition: transform .2s var(--ease);
}
.tweaks-btn.visible { display: grid; }
.tweaks-btn:hover { transform: scale(1.05); }

.tweaks-panel {
  position: fixed;
  right: 20px; bottom: 84px;
  z-index: 100;
  width: 320px;
  max-height: 70vh;
  overflow-y: auto;
  background: var(--bg);
  border: 1px solid var(--line);
  border-radius: var(--r-l);
  box-shadow: 0 24px 60px rgba(0,0,0,.18);
  padding: 20px;
  display: none;
}
.tweaks-panel.open { display: block; }
.tweaks-panel h3 {
  font-family: var(--font-display);
  font-size: 22px;
  margin: 0 0 4px;
}
.tweaks-panel .sub {
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 20px;
}
.tweaks-group { margin-bottom: 20px; }
.tweaks-group > label {
  font-family: var(--font-mono);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
  display: block;
  margin-bottom: 8px;
}
.tweaks-row { display: flex; gap: 6px; flex-wrap: wrap; }
.swatch {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: 2px solid transparent;
  cursor: pointer;
  transition: transform .15s var(--ease);
}
.swatch:hover { transform: scale(1.1); }
.swatch.active { border-color: var(--ink); box-shadow: 0 0 0 2px var(--bg); }

.tweaks-row .pill {
  padding: 6px 12px;
  font-size: 12px;
  border-radius: 100px;
  border: 1px solid var(--line);
  background: var(--bg);
  color: var(--ink);
  cursor: pointer;
}
.tweaks-row .pill.active { background: var(--ink); color: var(--bg); border-color: var(--ink); }

.tweaks-slider {
  width: 100%;
  -webkit-appearance: none; appearance: none;
  height: 4px;
  background: var(--line);
  border-radius: 4px;
  outline: none;
}
.tweaks-slider::-webkit-slider-thumb {
  -webkit-appearance: none; appearance: none;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--ink); cursor: pointer;
}

/* ---- Marquee ---- */
@keyframes marquee {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 20px 0;
  background: var(--bg-elev);
}
.marquee-track {
  display: inline-flex;
  gap: 48px;
  padding-right: 48px;
  animation: marquee 40s linear infinite;
  white-space: nowrap;
  font-family: var(--font-display);
  font-size: 32px;
  font-style: italic;
  color: var(--ink);
}
.marquee-track .dot {
  display: inline-block;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  align-self: center;
  margin: auto 0;
}