/* ============================================================
   diskus.ai — ink & saffron editorial-technical
   Display: Bricolage Grotesque · Body: Newsreader · Meta: IBM Plex Mono
   ============================================================ */

:root {
  --ink: #0b1210;
  --ink-2: #111a17;
  --ink-3: #16221e;
  --line: rgba(236, 231, 220, 0.12);
  --line-soft: rgba(236, 231, 220, 0.07);
  --paper: #ece7dc;
  --paper-dim: rgba(236, 231, 220, 0.62);
  --paper-faint: rgba(236, 231, 220, 0.38);
  --saffron: #e8a13c;
  --saffron-bright: #f5b85a;
  --sage: #8aa394;
  --max: 1240px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --display: "Bricolage Grotesque", "Segoe UI", sans-serif;
  --serif: "Newsreader", Georgia, serif;
  --mono: "IBM Plex Mono", "Consolas", monospace;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--ink);
  color: var(--paper);
  font-family: var(--serif);
  font-size: 1.0625rem;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

/* --- atmosphere: grain + faint vertical grid ------------------ */

.grain {
  position: fixed;
  inset: -50%;
  width: 200%;
  height: 200%;
  pointer-events: none;
  z-index: 50;
  opacity: 0.05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.8' numOctaves='2'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.gridlines {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  max-width: var(--max);
  margin: 0 auto;
  border-left: 1px solid var(--line-soft);
  border-right: 1px solid var(--line-soft);
}
.gridlines::before {
  content: "";
  position: absolute;
  inset: 0;
  left: 50%;
  border-left: 1px solid var(--line-soft);
}

main, header.site, footer.site { position: relative; z-index: 1; }

/* --- type helpers --------------------------------------------- */

.mono {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-faint);
}

.accent { color: var(--saffron); }

h1, h2, .display { font-family: var(--display); letter-spacing: -0.02em; }

/* --- header ---------------------------------------------------- */

header.site {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.4rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  border-bottom: 1px solid var(--line);
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  text-decoration: none;
  color: var(--paper);
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: 0.02em;
}

/* Placeholder mark — swap for <img src="assets/logo.svg"> when ready */
.logo .mark {
  width: 16px;
  height: 16px;
  background: var(--saffron);
  transform: rotate(45deg);
  flex: none;
  transition: transform 0.5s cubic-bezier(0.2, 0.9, 0.3, 1.3);
}
.logo:hover .mark { transform: rotate(225deg); }
.logo .tld { color: var(--paper-faint); font-weight: 500; }

nav.primary { display: flex; gap: 2rem; }
nav.primary a {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-dim);
  text-decoration: none;
  position: relative;
  padding-bottom: 2px;
}
nav.primary a::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -2px;
  width: 0;
  height: 1px;
  background: var(--saffron);
  transition: width 0.25s ease;
}
nav.primary a:hover { color: var(--paper); }
nav.primary a:hover::after { width: 100%; }

/* --- hero ------------------------------------------------------ */

.hero {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4rem, 10vh, 7.5rem) var(--gutter) clamp(3rem, 8vh, 6rem);
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 2rem;
}

.hero .eyebrow {
  display: flex;
  align-items: center;
  gap: 0.8rem;
  margin-bottom: 2.2rem;
}
.hero .eyebrow::before {
  content: "";
  width: 2.4rem;
  height: 1px;
  background: var(--saffron);
}

.hero h1 {
  font-size: clamp(2.9rem, 8.5vw, 6.8rem);
  font-weight: 650;
  line-height: 0.98;
  max-width: 12ch;
}
.hero h1 .outline {
  color: transparent;
  -webkit-text-stroke: 1.5px var(--saffron);
  font-style: italic;
  font-weight: 500;
}

.hero .lede {
  margin-top: 2.2rem;
  max-width: 46ch;
  font-size: clamp(1.1rem, 1.6vw, 1.3rem);
  line-height: 1.55;
  color: var(--paper-dim);
}
.hero .lede em { color: var(--paper); font-style: italic; }

.hero .cta-row {
  margin-top: 2.6rem;
  display: flex;
  align-items: center;
  gap: 1.8rem;
  flex-wrap: wrap;
}

.btn {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 0.85rem 1.4rem;
  border: 1px solid var(--saffron);
  color: var(--saffron);
  background: transparent;
  transition: background 0.2s ease, color 0.2s ease;
}
.btn:hover { background: var(--saffron); color: var(--ink); }
.btn.solid { background: var(--saffron); color: var(--ink); }
.btn.solid:hover { background: var(--saffron-bright); }

.hero-meta {
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  gap: 1.1rem;
  text-align: right;
  padding-bottom: 0.4rem;
}
.hero-meta div { line-height: 1.7; }
.hero-meta .v { color: var(--paper-dim); display: block; }

/* hero load choreography */
.rise { opacity: 0; transform: translateY(26px); animation: rise 0.9s cubic-bezier(0.2, 0.7, 0.2, 1) forwards; }
.rise.d1 { animation-delay: 0.08s; }
.rise.d2 { animation-delay: 0.2s; }
.rise.d3 { animation-delay: 0.34s; }
.rise.d4 { animation-delay: 0.5s; }
@keyframes rise { to { opacity: 1; transform: none; } }

/* --- marquee --------------------------------------------------- */

.marquee {
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
  white-space: nowrap;
  padding: 0.7rem 0;
  background: var(--ink-2);
}
.marquee .track {
  display: inline-block;
  animation: scroll 38s linear infinite;
}
.marquee span {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--paper-faint);
  padding: 0 1.6rem;
}
.marquee span::after { content: "◆"; color: var(--saffron); margin-left: 3.2rem; font-size: 0.55rem; vertical-align: 1px; }
@keyframes scroll { to { transform: translateX(-50%); } }

/* --- sections --------------------------------------------------- */

section.block {
  max-width: var(--max);
  margin: 0 auto;
  padding: clamp(4rem, 9vh, 6.5rem) var(--gutter);
  border-bottom: 1px solid var(--line);
}

.sec-head {
  display: flex;
  align-items: baseline;
  gap: 1.2rem;
  margin-bottom: 3rem;
}
.sec-head .no {
  font-family: var(--mono);
  font-size: 0.8rem;
  color: var(--saffron);
}
.sec-head h2 {
  font-size: clamp(1.8rem, 3.6vw, 2.8rem);
  font-weight: 600;
}

/* product index rows */
.index { border-top: 1px solid var(--line); }
.row {
  display: grid;
  grid-template-columns: 3.5rem minmax(0, 1.1fr) minmax(0, 1.4fr) auto auto;
  align-items: center;
  gap: 1.5rem;
  padding: 1.6rem 0.8rem;
  border-bottom: 1px solid var(--line);
  text-decoration: none;
  color: inherit;
  position: relative;
  transition: background 0.25s ease;
}
.row::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 0;
  background: var(--saffron);
  transition: width 0.25s ease;
}
.row:hover { background: var(--ink-2); }
.row:hover::before { width: 3px; }

.row .n { font-family: var(--mono); font-size: 0.75rem; color: var(--paper-faint); }
.row .name {
  font-family: var(--display);
  font-size: clamp(1.2rem, 2.4vw, 1.7rem);
  font-weight: 600;
  transition: color 0.2s ease;
}
.row:hover .name { color: var(--saffron-bright); }
.row .desc { color: var(--paper-dim); font-size: 0.98rem; line-height: 1.5; }
.row .tag {
  font-family: var(--mono);
  font-size: 0.62rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 0.32rem 0.6rem;
  border: 1px solid var(--line);
  color: var(--paper-dim);
  white-space: nowrap;
}
.row .tag.live { border-color: rgba(138, 163, 148, 0.5); color: var(--sage); }
.row .tag.beta { border-color: rgba(232, 161, 60, 0.5); color: var(--saffron); }
.row .arrow {
  font-family: var(--display);
  color: var(--paper-faint);
  transition: transform 0.25s ease, color 0.25s ease;
}
.row:hover .arrow { transform: translateX(6px); color: var(--saffron); }

/* --- platform (astra) ------------------------------------------ */

.platform-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: start;
}

.platform-copy .big {
  font-family: var(--display);
  font-size: clamp(1.6rem, 3vw, 2.3rem);
  font-weight: 600;
  line-height: 1.15;
  max-width: 18ch;
}
.platform-copy p { margin-top: 1.4rem; color: var(--paper-dim); max-width: 52ch; }
.platform-copy .points { margin-top: 2rem; list-style: none; }
.platform-copy .points li {
  padding: 0.85rem 0;
  border-top: 1px solid var(--line);
  display: flex;
  gap: 1rem;
  align-items: baseline;
  color: var(--paper-dim);
  font-size: 0.98rem;
}
.platform-copy .points li::before {
  content: "◆";
  color: var(--saffron);
  font-size: 0.6rem;
  flex: none;
}

.diagram {
  border: 1px solid var(--line);
  background: var(--ink-2);
  padding: 2.2rem;
  font-family: var(--mono);
  font-size: 0.78rem;
  line-height: 1.5;
}
.diagram .hub {
  border: 1px solid var(--saffron);
  color: var(--saffron);
  text-align: center;
  padding: 0.9rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}
.diagram .stem {
  width: 1px;
  height: 2rem;
  background: var(--line);
  margin: 0 auto;
}
.diagram .spokes {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.8rem;
}
.diagram .node {
  border: 1px solid var(--line);
  padding: 0.75rem 0.9rem;
  color: var(--paper-dim);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-size: 0.68rem;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.diagram .node:hover { border-color: var(--saffron); color: var(--paper); }
.diagram .cap { margin-top: 1.6rem; color: var(--paper-faint); font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; text-align: center; }

/* --- company ---------------------------------------------------- */

.company-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(0, 1fr);
  gap: clamp(2rem, 5vw, 4.5rem);
}
.company-grid .statement {
  font-family: var(--serif);
  font-size: clamp(1.3rem, 2.4vw, 1.85rem);
  line-height: 1.45;
  font-style: italic;
  color: var(--paper);
  max-width: 26ch;
}
.company-grid .statement .accent { font-style: normal; }
.contact-card { border: 1px solid var(--line); padding: 2rem; background: var(--ink-2); }
.contact-card .mono { display: block; margin-bottom: 1rem; }
.contact-card a.mail {
  font-family: var(--display);
  font-size: clamp(1.2rem, 2vw, 1.6rem);
  font-weight: 600;
  color: var(--paper);
  text-decoration: none;
  border-bottom: 1px solid var(--saffron);
  transition: color 0.2s ease;
}
.contact-card a.mail:hover { color: var(--saffron-bright); }
.contact-card p { margin-top: 1.2rem; color: var(--paper-dim); font-size: 0.95rem; }

/* --- footer ------------------------------------------------------ */

footer.site {
  max-width: var(--max);
  margin: 0 auto;
  padding: 2.2rem var(--gutter) 3rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}
footer.site .legal { display: flex; gap: 1.8rem; }
footer.site a {
  font-family: var(--mono);
  font-size: 0.68rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--paper-faint);
  text-decoration: none;
}
footer.site a:hover { color: var(--saffron); }

/* --- scroll reveal ----------------------------------------------- */

.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.2, 0.7, 0.2, 1); }
.reveal.in { opacity: 1; transform: none; }

/* --- legal pages -------------------------------------------------- */

.legal-wrap {
  max-width: 760px;
  margin: 0 auto;
  padding: clamp(3rem, 7vh, 5rem) var(--gutter) 5rem;
}
.legal-wrap h1 { font-size: clamp(2rem, 5vw, 3.2rem); font-weight: 650; margin-bottom: 0.8rem; }
.legal-wrap .updated { margin-bottom: 3rem; display: block; }
.legal-wrap h2 {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 2.6rem 0 0.9rem;
  padding-top: 2rem;
  border-top: 1px solid var(--line);
}
.legal-wrap p, .legal-wrap li { color: var(--paper-dim); margin-bottom: 0.9rem; }
.legal-wrap ul { padding-left: 1.2rem; margin-bottom: 1rem; }
.legal-wrap strong { color: var(--paper); font-weight: 500; }
.legal-wrap a { color: var(--saffron); text-decoration: none; }
.legal-wrap a:hover { text-decoration: underline; }

/* --- responsive ---------------------------------------------------- */

@media (max-width: 880px) {
  .hero { grid-template-columns: 1fr; }
  .hero-meta { flex-direction: row; text-align: left; justify-content: flex-start; gap: 2.5rem; }
  .row { grid-template-columns: 2.2rem minmax(0, 1fr) auto; }
  .row .desc { display: none; }
  .platform-grid, .company-grid { grid-template-columns: 1fr; }
  nav.primary { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  .rise, .reveal { animation: none; transition: none; opacity: 1; transform: none; }
  .marquee .track { animation: none; }
  html { scroll-behavior: auto; }
}