/* Phantom Tide public pages */

:root {
  --bg: #07131d;
  --bg-deep: #040b12;
  --bg-raised: rgba(15, 29, 43, 0.92);
  --bg-panel: rgba(18, 37, 53, 0.92);
  --ink: #e6eef3;
  --ink-soft: #8ea4b3;
  --ink-faint: #607483;
  --rule: rgba(146, 171, 188, 0.16);
  --rule-strong: rgba(146, 171, 188, 0.26);
  --accent: #86bbcd;
  --accent-soft: rgba(134, 187, 205, 0.12);
  --accent-strong: #bde2eb;
  --signal: #d8c08f;
  --signal-soft: rgba(216, 192, 143, 0.12);
  --sans: "Avenir Next", "Segoe UI", "Helvetica Neue", sans-serif;
  --serif: Charter, "Iowan Old Style", "Palatino Linotype", Georgia, serif;
  --mono: "SF Mono", "Cascadia Code", "Fira Code", monospace;
  --r: 4px;
  --shadow: 0 24px 64px rgba(0, 0, 0, 0.28);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-right: env(safe-area-inset-right, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
  --safe-left: env(safe-area-inset-left, 0px);
}

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

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  background: var(--bg-deep);
  -webkit-text-size-adjust: 100%;
}

.site-body {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  background:
    radial-gradient(circle at top right, rgba(134, 187, 205, 0.12), transparent 28%),
    radial-gradient(circle at 0% 18%, rgba(216, 192, 143, 0.08), transparent 24%),
    linear-gradient(180deg, #08141f 0%, #0a1520 36%, #07111a 100%);
  color: var(--ink);
  font: 16px/1.7 var(--sans);
}

.site-body::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background:
    linear-gradient(90deg, transparent 0, rgba(255, 255, 255, 0.015) 50%, transparent 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.02), transparent 20%);
  opacity: 0.9;
}

.site-shell {
  position: relative;
  z-index: 1;
  width: min(1360px, 100%);
  margin: 0 auto;
  padding: max(16px, calc(var(--safe-top) + 16px))
    max(18px, calc(var(--safe-right) + clamp(18px, 3vw, 48px)))
    max(56px, calc(var(--safe-bottom) + 32px))
    max(18px, calc(var(--safe-left) + clamp(18px, 3vw, 48px)));
}

.site-header {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 6px 0 18px;
  border-bottom: 1px solid var(--rule);
}

.site-header::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: -1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(189, 226, 235, 0.2), transparent);
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 14px;
  color: inherit;
  text-decoration: none;
  touch-action: manipulation;
}

.site-brand-mark {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid rgba(7, 19, 29, 0.36);
  border-radius: var(--r);
  background: linear-gradient(135deg, #b7dfeb, #6f9db0);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.22);
  color: var(--bg-deep);
  font: 700 13px/1 var(--mono);
  letter-spacing: 0.08em;
  flex-shrink: 0;
}

.site-brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.site-brand-name {
  font: 700 18px/1.1 var(--serif);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.site-brand-sub {
  color: var(--ink-soft);
  font: 500 10px/1.2 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-nav {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.site-nav a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0 14px;
  border: 1px solid transparent;
  background: rgba(255, 255, 255, 0.02);
  color: var(--ink-soft);
  text-decoration: none;
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  transition:
    border-color 120ms ease,
    color 120ms ease,
    background 120ms ease,
    transform 120ms ease;
  touch-action: manipulation;
}

.site-nav a:hover {
  border-color: var(--rule-strong);
  color: var(--accent-strong);
  transform: translateY(-1px);
}

.site-nav a[aria-current="page"] {
  border-color: rgba(134, 187, 205, 0.28);
  background: var(--accent-soft);
  color: var(--ink);
}

.site-main {
  padding-top: clamp(22px, 3vw, 40px);
}

.site-hero {
  padding: 0 0 20px;
}

.site-hero-compact {
  padding-bottom: 10px;
}

.site-hero--split {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(320px, 0.85fr);
  gap: 20px;
  align-items: end;
}

.site-hero-copy {
  max-width: 760px;
}

.site-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--accent);
  font: 600 11px/1.2 var(--mono);
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.site-eyebrow::before {
  content: "";
  display: block;
  width: 24px;
  height: 2px;
  background: currentColor;
  flex-shrink: 0;
}

.site-hero h1 {
  max-width: none;
  margin: 0;
  font: 800 clamp(42px, 6vw, 78px)/0.96 var(--serif);
  letter-spacing: -0.045em;
  color: var(--ink);
}

.site-lead {
  max-width: 700px;
  margin: 16px 0 0;
  color: var(--ink-soft);
  font-size: 17px;
  line-height: 1.58;
}

.site-hero-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-top: 22px;
  flex-wrap: wrap;
}

.site-hero-rail {
  display: grid;
  gap: 14px;
}

.site-hero-panel,
.site-stat-card,
.site-signal-item,
.site-card,
.site-note,
.site-callout {
  box-shadow: var(--shadow);
}

.site-hero-panel {
  padding: 22px;
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(20, 38, 54, 0.96), rgba(11, 20, 30, 0.98));
}

.site-panel-label,
.site-card-kicker,
.site-signal-index {
  display: inline-flex;
  align-items: center;
  margin: 0 0 10px;
  color: var(--signal);
  font: 600 10px/1.1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.site-panel-text {
  margin: 0;
  color: var(--ink);
  font: 600 18px/1.45 var(--serif);
}

.site-kicker-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.site-kicker-list span {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  padding: 0 10px;
  border: 1px solid var(--rule);
  background: rgba(255, 255, 255, 0.025);
  color: var(--ink-soft);
  font: 600 10px/1 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.site-stat-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.site-stat-card {
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  min-height: 112px;
  padding: 14px;
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(17, 32, 47, 0.96), rgba(9, 16, 24, 0.98));
}

.site-stat-value {
  display: block;
  margin-bottom: 8px;
  font: 700 clamp(28px, 3.6vw, 44px)/1 var(--serif);
  letter-spacing: -0.05em;
  color: var(--ink);
}

.site-stat-label {
  color: var(--ink-soft);
  font: 600 10px/1.45 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.site-signal-band {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  padding: 8px 0 6px;
}

.site-signal-item {
  position: relative;
  overflow: hidden;
  padding: 18px 16px 16px 20px;
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(17, 31, 46, 0.96), rgba(9, 15, 23, 0.98));
}

.site-signal-item::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(180deg, var(--accent), rgba(134, 187, 205, 0.04));
}

.site-signal-title {
  margin: 0 0 8px;
  font: 700 21px/1.08 var(--serif);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.site-signal-copy,
.section-heading-copy {
  margin: 0;
  color: var(--ink-soft);
}

.site-section {
  padding: 28px 0 0;
}

.section-heading {
  margin-bottom: 14px;
}

.section-heading--split {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(280px, 0.72fr);
  gap: 16px;
  align-items: end;
}

.section-heading h2 {
  margin: 0;
  font: 700 30px/1.05 var(--serif);
  letter-spacing: -0.03em;
}

.site-card {
  position: relative;
  overflow: hidden;
  padding: 20px;
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(18, 34, 49, 0.96), rgba(9, 16, 25, 0.98));
}

.site-card::before {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), transparent 78%);
}

.site-card--contrast::before {
  background: linear-gradient(90deg, var(--signal), transparent 78%);
}

.site-card h2,
.site-note h2 {
  margin: 0 0 10px;
  font: 700 20px/1.12 var(--serif);
  letter-spacing: -0.02em;
  color: var(--ink);
}

.site-card h3 {
  margin: 0 0 8px;
  font: 700 17px/1.15 var(--serif);
  letter-spacing: -0.01em;
  color: var(--ink);
}

.site-card p,
.site-note p,
.legal-block p {
  margin: 0 0 14px;
  color: var(--ink-soft);
}

.site-card p:last-child,
.site-note p:last-child,
.legal-block p:last-child {
  margin-bottom: 0;
}

.site-card a,
.site-note a,
.legal-block a {
  color: var(--accent-strong);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  transition: color 120ms ease;
}

.site-card a:hover,
.site-note a:hover,
.legal-block a:hover {
  color: var(--ink);
}

.site-note {
  position: relative;
  overflow: hidden;
  padding: 22px 24px;
  border: 1px solid var(--rule-strong);
  background: linear-gradient(180deg, rgba(20, 38, 54, 0.96), rgba(10, 18, 27, 0.98));
}

.site-note::before {
  content: "";
  position: absolute;
  left: 0;
  top: 12px;
  bottom: 12px;
  width: 4px;
  background: linear-gradient(180deg, var(--accent), rgba(134, 187, 205, 0.02));
}

.site-callout {
  position: relative;
  overflow: hidden;
  margin-bottom: 16px;
  padding: 18px 20px 18px 24px;
  border: 1px solid var(--rule);
  background: linear-gradient(180deg, rgba(28, 43, 52, 0.72), rgba(12, 21, 29, 0.96));
}

.site-callout::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 4px;
  background: var(--signal);
}

.site-callout p {
  margin: 0;
  font: 600 clamp(20px, 2.6vw, 28px)/1.35 var(--serif);
  color: var(--ink);
}

.site-list {
  margin: 0;
  padding-left: 20px;
  color: var(--ink-soft);
}

.site-list li + li {
  margin-top: 9px;
}

.legal-block {
  padding: 22px;
}

.site-grid-two,
.site-grid-three,
.legal-grid {
  display: grid;
  gap: 12px;
}

.site-grid-two,
.legal-grid {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.site-grid-two--weighted {
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 0.8fr);
}

.site-grid-three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.site-button,
.site-button-outline {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 46px;
  padding: 0 20px;
  border-radius: var(--r);
  text-decoration: none;
  font: 700 11px/1 var(--mono);
  letter-spacing: 0.11em;
  text-transform: uppercase;
  transition:
    background 120ms ease,
    border-color 120ms ease,
    color 120ms ease,
    transform 120ms ease;
  touch-action: manipulation;
}

.site-button {
  border: 1px solid rgba(7, 19, 29, 0.36);
  background: linear-gradient(135deg, #b7dfeb, #6f9db0);
  color: var(--bg-deep);
}

.site-button:hover {
  background: linear-gradient(135deg, #c4e8f1, #78a6b8);
  transform: translateY(-1px);
}

.site-button-outline {
  border: 1px solid var(--rule-strong);
  background: rgba(255, 255, 255, 0.02);
  color: var(--ink-soft);
}

.site-button-outline:hover {
  border-color: rgba(134, 187, 205, 0.3);
  background: var(--accent-soft);
  color: var(--ink);
  transform: translateY(-1px);
}

.site-footer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  margin-top: 40px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
  color: var(--ink-soft);
  font: 500 9px/1.45 var(--mono);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

*:focus-visible {
  outline: 2px solid var(--accent-strong);
  outline-offset: 3px;
}

@media (max-width: 1080px) {
  .site-hero--split,
  .section-heading--split,
  .site-grid-two--weighted {
    grid-template-columns: 1fr;
  }

  .site-hero-copy,
  .site-lead {
    max-width: none;
  }
}

@media (max-width: 900px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-nav {
    width: 100%;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }

  .site-grid-two,
  .site-grid-three,
  .legal-grid,
  .site-signal-band {
    grid-template-columns: 1fr;
  }

  .site-footer {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-shell {
    padding-right: max(16px, calc(var(--safe-right) + 16px));
    padding-bottom: max(48px, calc(var(--safe-bottom) + 28px));
    padding-left: max(16px, calc(var(--safe-left) + 16px));
  }

  .site-main {
    padding-top: 20px;
  }

  .site-brand {
    align-items: flex-start;
  }

  .site-brand-mark {
    width: 42px;
    height: 42px;
  }

  .site-brand-name {
    font-size: 16px;
  }

  .site-brand-sub {
    font-size: 10px;
    line-height: 1.3;
  }

  .site-hero h1 {
    font-size: clamp(32px, 12vw, 50px);
  }

  .site-lead {
    margin-top: 18px;
    font-size: 16px;
  }

  .site-hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .site-button,
  .site-button-outline {
    width: 100%;
  }

  .site-stat-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .site-card,
  .site-note,
  .legal-block,
  .site-hero-panel {
    padding: 18px;
  }

  .site-callout {
    padding: 16px 16px 16px 20px;
  }
}

@media (max-width: 560px) {
  .site-nav {
    grid-template-columns: 1fr;
  }

  .site-stat-grid {
    grid-template-columns: 1fr;
  }

  .site-card h2,
  .site-note h2 {
    font-size: 19px;
  }

  .site-signal-item {
    padding: 18px 18px 18px 22px;
  }
}

@media (pointer: coarse) {
  .site-nav a,
  .site-button,
  .site-button-outline {
    min-height: 48px;
  }
}

/* ============================================================================
   DOCUMENT LAYOUT — about and legal pages
   ============================================================================ */

.doc-header {
  padding: 26px 0 18px;
  border-bottom: 1px solid var(--rule-strong);
}

.doc-title {
  margin: 0 0 10px;
  font: 700 24px/1.08 var(--serif);
  letter-spacing: -0.025em;
  color: var(--ink);
}

.doc-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0;
  margin: 0;
  padding: 0;
  list-style: none;
  color: var(--ink-faint);
  font: 500 10px/1.4 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.doc-meta li + li::before {
  content: "·";
  margin: 0 10px;
}

.doc-section {
  padding: 20px 0;
  border-bottom: 1px solid var(--rule);
  max-width: 1040px;
}

.doc-section:last-child {
  border-bottom: none;
}

.doc-section > h2 {
  margin: 0 0 12px;
  font: 700 11px/1 var(--mono);
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.doc-section p {
  margin: 0 0 12px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.65;
}

.doc-section p:last-child {
  margin-bottom: 0;
}

.doc-section ul {
  margin: 0;
  padding-left: 18px;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.65;
}

.doc-section ul li + li {
  margin-top: 7px;
}

.doc-section a {
  color: var(--accent-strong);
  text-decoration: underline;
  text-underline-offset: 2px;
  text-decoration-thickness: 1px;
  transition: color 120ms ease;
}

.doc-section a:hover {
  color: var(--ink);
}

/* Prominent warning block — safety-critical, key restrictions */
.doc-warning {
  position: relative;
  padding: 14px 18px 14px 22px;
  border: 1px solid rgba(248, 113, 113, 0.2);
  background: rgba(127, 29, 29, 0.1);
  margin-bottom: 12px;
}

.doc-warning::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: #f87171;
}

.doc-warning p {
  margin: 0;
  color: var(--ink);
  font-size: 13px;
  line-height: 1.55;
}

/* Source matrix table */
.source-matrix {
  width: 100%;
  border-collapse: collapse;
  margin-top: 4px;
  table-layout: fixed;
}

.source-matrix th {
  padding: 5px 14px 6px 0;
  border-bottom: 1px solid var(--rule-strong);
  text-align: left;
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--ink-faint);
  white-space: nowrap;
}

.source-matrix td {
  padding: 7px 14px 7px 0;
  border-bottom: 1px solid var(--rule);
  font-size: 12px;
  vertical-align: top;
  color: var(--ink-soft);
  line-height: 1.45;
  overflow-wrap: anywhere;
}

.source-matrix tr:last-child td {
  border-bottom: none;
}

.src-id {
  color: var(--ink);
  font: 600 11px/1.2 var(--mono);
  white-space: nowrap;
}

.src-status {
  font: 600 9px/1 var(--mono);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.src-live  { color: #4ade80; }
.src-hours { color: var(--signal); }
.src-daily { color: var(--ink-faint); }

@media (max-width: 720px) {
  .doc-header {
    padding: 20px 0 16px;
  }

  .doc-title {
    font-size: 20px;
  }

  .doc-section {
    padding: 18px 0;
  }

  /* Hide the cadence column on small screens */
  .source-matrix th:nth-child(3),
  .source-matrix td:nth-child(3) {
    display: none;
  }
}

/* ============================================================================
   LIGHT THEME ROADMAP
   ============================================================================

   When implementing, replace the :root block above with
   the variables below, or drive via a .theme-light class
   on <body> or a prefers-color-scheme media query.

   Implementation options:
   A) System-default:  @media (prefers-color-scheme: light) { :root { ... } }
   B) User toggle:     body.theme-light { ... } -- needs a JS toggle + localStorage
   C) Server-decided:  set theme-light on <body> based on user session preference

   -- Recommended light palette ------------------------------------------------

   --bg:            #f2f3f5;
   --bg-raised:     #ffffff;
   --ink:           #0c1a28;
   --ink-soft:      #4c5f70;
   --rule:          #c4ccd5;
   --accent:        #295070;
   --accent-soft:   rgba(41, 80, 112, 0.08);
   --accent-strong: #1a3c52;

   -- Notes -------------------------------------------------------------------

   - .site-button background should flip to var(--ink) with color var(--bg-raised)
     (on dark the button is accent-coloured for contrast; on light it should be navy)
   - .site-brand-mark should flip to background var(--ink), color var(--bg-raised)
   - Cards will look better with border-top 3px (slightly thicker reads well on light)
   - Consider testing .site-callout with a warmer tint on light -- the pure accent-soft
     may read too cold. A value around rgba(41, 80, 112, 0.06) works well.
   - Run Lighthouse contrast check on ink-soft (#4c5f70) against bg-raised (#ffffff)
     -- passes AA at 16px+ but worth verifying at 14px mono sizes in the footer.

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