/* ============================================================
   COSMOS STUDIO — site stylesheet (self-contained)
   Mirrors the Cosmos Studio design system tokens & components.
   Ink (dark navy) theme · International Orange single accent.
   ============================================================ */

/* ---------- tokens ---------- */
:root {
  --ink-950: #04060B;
  --ink-900: #0A0F18;
  --ink-800: #121A28;
  --ink-700: #1B2536;
  --ink-600: #29344A;
  --ink-500: #3E4B66;
  --ink-400: #5C6A84;
  --ink-300: #8593AB;
  --ink-200: #B0BBCC;
  --ink-100: #D8DEE8;
  --ink-50:  #EDF0F5;

  --orange-300: #FF9663;
  --orange-400: #FF6B26;
  --orange-500: #FF4F00;
  --orange-600: #D64200;
  --orange-700: #A83400;

  --cobalt-400: #5B87EC;
  --green-400: #4CC98A;
  --amber-400: #FFB224;
  --red-400: #F26D6D;
  --red-500: #E5484D;

  --surface-page: var(--ink-900);
  --surface-sunken: var(--ink-950);
  --surface-raised: var(--ink-800);
  --surface-accent-soft: rgba(255, 79, 0, 0.10);

  --text-primary: #F1F4F9;
  --text-secondary: var(--ink-300);
  --text-tertiary: var(--ink-400);
  --text-on-accent: var(--ink-950);
  --text-accent: var(--orange-500);

  --border-hairline: rgba(237, 240, 245, 0.14);
  --border-strong: rgba(237, 240, 245, 0.30);

  --accent: var(--orange-500);
  --accent-hover: var(--orange-400);
  --accent-down: var(--orange-600);
  --focus-ring: var(--orange-400);

  --status-positive: var(--green-400);
  --status-caution: var(--amber-400);
  --status-critical: var(--red-400);
  --status-info: var(--cobalt-400);

  --font-sans: "Archivo", "Helvetica Neue", Helvetica, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", "SFMono-Regular", Menlo, Consolas, monospace;

  --radius-1: 2px;
  --shadow-overlay: 0 24px 80px rgba(2, 4, 10, 0.55), 0 2px 8px rgba(2, 4, 10, 0.35);
  --glow-accent: 0 0 16px rgba(255, 79, 0, 0.45);

  --container-max: 1200px;

  --ease-out: cubic-bezier(0.2, 0, 0, 1);
  --duration-fast: 120ms;
  --duration-base: 200ms;
  --duration-slow: 320ms;

  color-scheme: dark;
}

/* ---------- base ---------- */
*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--surface-page);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

::selection { background: var(--accent); color: var(--text-on-accent); }
:focus-visible { outline: 2px solid var(--focus-ring); outline-offset: 2px; }

a { color: inherit; text-decoration-thickness: 1px; text-underline-offset: 3px; transition: color var(--duration-base) var(--ease-out); }
a:hover { color: var(--text-accent); }

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

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

.skip {
  position: absolute;
  left: 16px;
  top: -48px;
  z-index: 200;
  background: var(--accent);
  color: var(--text-on-accent);
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 10px 16px;
  border-radius: var(--radius-1);
  transition: top var(--duration-base) var(--ease-out);
}
.skip:focus { top: 12px; color: var(--text-on-accent); }

/* ---------- type utilities ---------- */
.cs-eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
  line-height: 1.4;
}
.cs-eyebrow b { color: var(--text-accent); font-weight: 500; }

.cs-display {
  font-family: var(--font-sans);
  font-weight: 800;
  font-stretch: 125%;
  letter-spacing: -0.02em;
  line-height: 1.04;
  text-wrap: balance;
  margin: 0;
}

.cs-title { font-weight: 600; letter-spacing: -0.01em; line-height: 1.2; margin: 0; }

.cs-rule { border: none; border-top: 1px solid var(--border-hairline); margin: 0; }

.cs-endorsement {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}

/* ---------- wordmark ---------- */
.cs-wordmark {
  display: inline-flex;
  align-items: baseline;
  gap: 0.55em;
  font-family: var(--font-sans);
  font-stretch: 125%;
  text-transform: uppercase;
  line-height: 1;
  color: var(--text-primary);
  white-space: nowrap;
  text-decoration: none;
}
.cs-wordmark:hover { color: var(--text-primary); }
.cs-wordmark__cosmos { font-weight: 800; letter-spacing: 0.015em; }
.cs-wordmark__studio { font-weight: 300; letter-spacing: 0.34em; margin-right: -0.34em; }
.cs-wordmark--stacked { flex-direction: column; align-items: flex-start; gap: 0.32em; }
.cs-wordmark--stacked .cs-wordmark__studio { font-size: 0.44em; letter-spacing: 0.532em; margin-right: -0.532em; }

/* ---------- buttons ---------- */
.cs-btn {
  appearance: none;
  -webkit-appearance: none;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  height: 40px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: var(--radius-1);
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  user-select: none;
  transition:
    background-color var(--duration-base) var(--ease-out),
    border-color var(--duration-base) var(--ease-out),
    color var(--duration-base) var(--ease-out),
    transform var(--duration-fast) var(--ease-out);
}
.cs-btn:hover { color: inherit; }
.cs-btn:active { transform: translateY(1px); }
.cs-btn:disabled { opacity: 0.4; pointer-events: none; }

.cs-btn--primary { background: var(--accent); border-color: var(--accent); color: var(--text-on-accent); }
.cs-btn--primary:hover { background: var(--accent-hover); border-color: var(--accent-hover); color: var(--text-on-accent); }
.cs-btn--primary:active { background: var(--accent-down); border-color: var(--accent-down); }

.cs-btn--secondary { border-color: var(--border-strong); }
.cs-btn--secondary:hover { border-color: var(--text-secondary); background: color-mix(in oklab, currentColor 7%, transparent); }

.cs-btn--ghost { color: var(--text-secondary); }
.cs-btn--ghost:hover { color: var(--text-primary); background: color-mix(in oklab, currentColor 7%, transparent); }

.cs-btn--sm { height: 32px; padding: 0 14px; font-size: 11px; }
.cs-btn--lg { height: 48px; padding: 0 28px; font-size: 13px; }

/* ---------- fields ---------- */
.cs-field { display: flex; flex-direction: column; gap: 8px; }
.cs-label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.cs-input, .cs-textarea {
  width: 100%;
  height: 44px;
  padding: 0 12px;
  background: var(--surface-sunken);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-1);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 15px;
  line-height: 1.4;
  transition: border-color var(--duration-base) var(--ease-out), box-shadow var(--duration-base) var(--ease-out);
}
.cs-input::placeholder, .cs-textarea::placeholder { color: var(--text-tertiary); }
.cs-input:hover, .cs-textarea:hover { border-color: var(--border-strong); }
.cs-input:focus, .cs-textarea:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--surface-accent-soft);
}
.cs-textarea { height: auto; min-height: 140px; padding: 12px; resize: vertical; }
.cs-help { font-size: 12px; color: var(--text-tertiary); }

/* ---------- switch (instrument toggle) ---------- */
.cs-choice { display: inline-flex; align-items: center; gap: 10px; font-size: 14px; cursor: pointer; user-select: none; }
.cs-switch {
  appearance: none;
  -webkit-appearance: none;
  width: 36px;
  height: 20px;
  margin: 0;
  flex: none;
  background: var(--surface-sunken);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-1);
  position: relative;
  cursor: pointer;
  transition: background-color var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}
.cs-switch::after {
  content: "";
  position: absolute;
  top: 2px;
  left: 2px;
  width: 14px;
  height: 14px;
  border-radius: 1px;
  background: var(--text-secondary);
  transition: transform var(--duration-base) var(--ease-out), background-color var(--duration-base) var(--ease-out);
}
.cs-switch:checked { background: var(--accent); border-color: var(--accent); }
.cs-switch:checked::after { transform: translateX(16px); background: var(--text-on-accent); }

/* ---------- card ---------- */
.cs-card {
  background: var(--surface-raised);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-1);
  padding: 24px;
  position: relative;
}
.cs-card--marked::after {
  content: "+";
  position: absolute;
  top: 6px;
  right: 10px;
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-tertiary);
  pointer-events: none;
}
.cs-card__eyebrow { margin-bottom: 12px; }
.cs-card__title { font-size: 21px; margin: 0 0 8px; }
.cs-card__body { color: var(--text-secondary); font-size: 14px; }
.cs-card__body em { font-style: italic; }

/* ---------- badge / tag ---------- */
.cs-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-secondary);
}
.cs-badge__dot { width: 6px; height: 6px; border-radius: 999px; background: var(--text-tertiary); flex: none; }
.cs-badge--positive .cs-badge__dot { background: var(--status-positive); }
.cs-badge--accent .cs-badge__dot { background: var(--accent); box-shadow: var(--glow-accent); }

.cs-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  height: 24px;
  padding: 0 10px;
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-1);
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-secondary);
  white-space: nowrap;
}
.cs-tag--accent {
  color: var(--text-accent);
  border-color: color-mix(in oklab, var(--accent) 45%, transparent);
  background: var(--surface-accent-soft);
}

/* ---------- tabs ---------- */
.cs-tabs { display: flex; gap: 28px; border-bottom: 1px solid var(--border-hairline); }
.cs-tab {
  appearance: none;
  background: none;
  border: none;
  padding: 10px 0 12px;
  margin-bottom: -1px;
  border-bottom: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  cursor: pointer;
  transition: color var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}
.cs-tab:hover { color: var(--text-secondary); }
.cs-tab[aria-selected="true"] { color: var(--text-primary); border-bottom-color: var(--accent); }
.cs-tab__index { color: var(--text-tertiary); margin-right: 6px; }
.cs-tab[aria-selected="true"] .cs-tab__index { color: var(--text-accent); }

/* ---------- readout ---------- */
.cs-readout { display: flex; flex-direction: column; gap: 8px; }
.cs-readout__label {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
}
.cs-readout__value {
  font-family: var(--font-mono);
  font-size: 28px;
  letter-spacing: -0.01em;
  font-variant-numeric: tabular-nums;
  color: var(--text-primary);
  line-height: 1.1;
}
.cs-readout__unit { font-size: 14px; color: var(--text-secondary); margin-left: 4px; }

/* ============================================================
   SITE SHELL
   ============================================================ */

.site-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 64px;
  padding: 8px 40px;
  background: color-mix(in srgb, var(--ink-900) 82%, transparent);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border-hairline);
}
.site-nav__links { display: flex; gap: 28px; align-items: center; flex-wrap: wrap; }
.site-navlink {
  padding: 6px 0;
  border-bottom: 1px solid transparent;
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  text-decoration: none;
  transition: color var(--duration-base) var(--ease-out), border-color var(--duration-base) var(--ease-out);
}
.site-navlink:hover { color: var(--text-secondary); }
.site-navlink[aria-current="page"] { color: var(--text-primary); border-bottom-color: var(--accent); }

.site-section { max-width: var(--container-max); margin: 0 auto; padding: 88px 40px; }
.site-section--tight { padding-top: 64px; padding-bottom: 64px; }
.site-sechead { display: flex; align-items: baseline; justify-content: space-between; gap: 24px; margin-bottom: 40px; }
.site-hr { max-width: var(--container-max); margin: 0 auto; }

/* ---------- hero ---------- */
.site-hero { position: relative; overflow: hidden; border-bottom: 1px solid var(--border-hairline); }
.site-stars { position: absolute; inset: 0; width: 100%; height: 100%; display: block; }
.site-hero__inner { position: relative; max-width: var(--container-max); margin: 0 auto; padding: 120px 40px 96px; }
.site-h1 { font-size: clamp(52px, 6.5vw, 88px); max-width: 900px; }
.site-lead {
  font-size: 18px;
  color: var(--text-secondary);
  max-width: 600px;
  line-height: 1.7;
  margin: 28px 0 40px;
}
.site-lead em { font-style: italic; }
.site-hero__meta { display: flex; gap: 32px; align-items: center; margin-top: 72px; flex-wrap: wrap; }
.site-cta-row { display: flex; gap: 12px; flex-wrap: wrap; }

/* ---------- work list ---------- */
.work-row {
  display: grid;
  grid-template-columns: 72px 1fr auto 150px 40px;
  gap: 24px;
  align-items: baseline;
  border-top: 1px solid var(--border-hairline);
  padding: 30px 8px;
  color: inherit;
  text-decoration: none;
  transition: background-color var(--duration-base) var(--ease-out);
}
.work-row:last-of-type { border-bottom: 1px solid var(--border-hairline); }
a.work-row:hover { background: color-mix(in oklab, currentColor 4%, transparent); color: inherit; }
.work-row__ix { font-family: var(--font-mono); font-size: 12px; color: var(--text-tertiary); }
.work-row__title { font-size: 28px; font-weight: 600; letter-spacing: -0.01em; transition: color var(--duration-base) var(--ease-out); }
a.work-row:hover .work-row__title { color: var(--text-accent); }
.work-row__cat { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--text-tertiary); }
.work-row__meta { justify-self: end; }
.work-row__arrow { font-size: 18px; color: var(--text-tertiary); justify-self: end; transition: transform var(--duration-base) var(--ease-out), color var(--duration-base) var(--ease-out); }
a.work-row:hover .work-row__arrow { color: var(--text-accent); transform: translate(3px, -3px); }
.work-row--soon .work-row__title { color: var(--text-secondary); }

/* ---------- practices / journal ---------- */
.cap-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.journal-row {
  display: grid;
  grid-template-columns: 130px 1fr auto;
  gap: 24px;
  align-items: baseline;
  border-top: 1px solid var(--border-hairline);
  padding: 22px 8px;
}
.journal-row:last-of-type { border-bottom: 1px solid var(--border-hairline); }
.journal-row__date { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em; color: var(--text-tertiary); }
.journal-row__title { font-size: 18px; font-weight: 500; color: var(--text-secondary); }

/* ---------- figure placeholder ---------- */
.fig {
  position: relative;
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface-sunken);
  border: 1px solid var(--border-hairline);
  border-radius: var(--radius-1);
  margin: 0;
}
.fig::before, .fig::after { position: absolute; font-family: var(--font-mono); font-size: 12px; color: var(--text-tertiary); }
.fig::before { content: "+"; top: 8px; left: 12px; }
.fig::after { content: "+"; bottom: 8px; right: 12px; }
.fig figcaption {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  text-align: center;
  line-height: 2;
  padding: 24px;
}

/* ---------- case page ---------- */
.case-readouts {
  display: flex;
  gap: 64px;
  flex-wrap: wrap;
  padding: 40px 0;
  border-top: 1px solid var(--border-hairline);
  border-bottom: 1px solid var(--border-hairline);
  margin: 56px 0 48px;
}
.case-pane { padding-top: 40px; display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: start; }
.case-pane p { margin: 0 0 16px; color: var(--text-secondary); font-size: 16px; line-height: 1.7; }
.case-pane p strong { color: var(--text-primary); font-weight: 600; }
.case-pane[hidden] { display: none; }
.case-tags { display: flex; gap: 8px; flex-wrap: wrap; margin: 24px 0; }
.case-end { margin-top: 88px; display: flex; justify-content: center; }

/* ---------- studio page ---------- */
.std-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 20px; margin-top: 48px; }
.std-p { border-top: 1px solid var(--border-strong); padding-top: 16px; }
.std-p .ix { font-family: var(--font-mono); font-size: 12px; color: var(--text-accent); letter-spacing: 0.1em; }
.std-p h3 { font-size: 16px; font-weight: 600; letter-spacing: -0.01em; margin: 10px 0 8px; line-height: 1.3; }
.std-p p { font-size: 13px; color: var(--text-tertiary); line-height: 1.55; margin: 0; }
.std-duo { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; margin-top: 96px; }
.shelf { columns: 2; column-gap: 48px; margin: 32px 0 0; padding: 0; }
.shelf li { font-family: var(--font-mono); font-size: 13px; color: var(--text-secondary); line-height: 2.1; list-style: none; break-inside: avoid; }
.shelf li::before { content: "— "; color: var(--text-tertiary); }
.wont { margin: 0; padding: 0; }
.wont li { font-size: 14px; color: var(--text-secondary); line-height: 2.2; list-style: none; }
.wont li::before { content: "✕  "; color: var(--status-critical); font-family: var(--font-mono); }
.std-cta { margin-top: 96px; display: flex; gap: 20px; align-items: center; flex-wrap: wrap; }

/* ---------- contact ---------- */
.contact-grid { display: grid; grid-template-columns: 1.1fr 1fr; gap: 64px; align-items: start; }
.contact-form { display: flex; flex-direction: column; gap: 20px; }
.contact-aside { display: flex; flex-direction: column; gap: 28px; padding-top: 4px; }
.contact-aside .cs-readout__value { font-size: 21px; }
.form-status {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--status-critical);
  line-height: 1.6;
}
.form-success { max-width: 560px; }
.hp-field { display: none; }

/* ---------- footer ---------- */
.site-footer { border-top: 1px solid var(--border-hairline); margin-top: 40px; }
.site-footer__inner {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 64px 40px;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  align-items: start;
}
.site-footer h2 {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-tertiary);
  margin: 0 0 16px;
}
.site-footer ul { margin: 0; padding: 0; }
.site-footer li { list-style: none; margin-bottom: 10px; }
.site-footer a { font-size: 14px; color: var(--text-secondary); text-decoration: none; }
.site-footer a:hover { color: var(--text-accent); }
.site-footer__blurb { font-size: 13px; color: var(--text-tertiary); max-width: 260px; line-height: 1.6; margin: 20px 0 0; }
.site-footer__coords { font-family: var(--font-mono); font-size: 12px; color: var(--text-tertiary); }
.site-footer__base {
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 40px 40px;
  display: flex;
  justify-content: space-between;
  gap: 24px;
  flex-wrap: wrap;
}

/* ---------- 404 ---------- */
.lost { min-height: calc(100vh - 64px); display: flex; align-items: center; position: relative; overflow: hidden; }
.lost__inner { position: relative; max-width: var(--container-max); margin: 0 auto; padding: 40px; }

/* ---------- responsive ---------- */
@media (max-width: 960px) {
  .site-section { padding-left: 24px; padding-right: 24px; }
  .site-nav { padding: 8px 24px; }
  .site-hero__inner { padding: 88px 24px 72px; }
  .cap-grid { grid-template-columns: 1fr; }
  .case-pane { grid-template-columns: 1fr; }
  .std-grid { grid-template-columns: repeat(2, 1fr); }
  .std-duo { grid-template-columns: 1fr; gap: 56px; }
  .contact-grid { grid-template-columns: 1fr; gap: 48px; }
  .site-footer__inner { grid-template-columns: 1fr 1fr; }
  .work-row { grid-template-columns: 48px 1fr 40px; }
  .work-row__cat, .work-row__meta { display: none; }
  .work-row__title { font-size: 22px; }
  .case-readouts { gap: 40px; }
  .shelf { columns: 1; }
}
@media (max-width: 560px) {
  .site-nav__links { gap: 16px; }
  .site-footer__inner { grid-template-columns: 1fr; }
  .journal-row { grid-template-columns: 1fr auto; }
  .journal-row__date { grid-column: 1 / -1; }
}