/* =========================================================
   C97: CANONICAL PUBLIC FRAME
   The single source of truth for the public Reflex / BookVault frame.
   - One 1200px desktop rail
   - One folder width
   - One navigation size
   - One responsive gutter rule
========================================================= */

:root {
  --ra-frame: 1200px;
  --ra-gutter: 20px;
  --ra-wall-deep: #34322e;
  --ra-wall-mid: #4a463d;
  --ra-paper: #e4dac5;
  --ra-paper-light: #eee7d8;
  --ra-paper-edge: #b6a788;
  --ra-ink: #292720;
  --ra-muted: #4f5964;
  --ra-rust: #985044;
  --ra-shadow: rgba(24, 20, 15, 0.48);
  --ra-label: "Courier Prime", ui-monospace, monospace;
  --ra-body: "Spectral", Georgia, serif;
}

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

html,
body {
  min-height: 100%;
}

body.ra-public-page {
  margin: 0;
  color: var(--ra-ink);
  background-color: var(--ra-wall-deep);
  background-image:
    radial-gradient(circle at 50% -8%, rgba(231, 218, 190, 0.13), transparent 44rem),
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(145deg, var(--ra-wall-mid), var(--ra-wall-deep) 68%);
  background-size: auto, 26px 26px, 26px 26px, auto;
  background-attachment: fixed;
  font-family: var(--ra-body);
}

.ra-public-frame {
  width: min(var(--ra-frame), calc(100vw - (var(--ra-gutter) * 2)));
  margin: 40px auto 84px;
}

/* =========================================================
   Shared tactile navigation rail
========================================================= */

.ra-public-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  width: 100%;
  margin: 0 0 40px;
  padding: 10px 16px;
  position: relative;
  z-index: 1;
  background: #dcdcdc;
  border: 1px solid #999;
  border-bottom: 4px solid #777;
  border-radius: 2px;
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.30);
}

.ra-public-nav::before,
.ra-public-nav::after {
  content: "⊗";
  position: absolute;
  top: 50%;
  color: #777;
  font-size: 14px;
  transform: translateY(-50%);
}

.ra-public-nav::before { left: 8px; }
.ra-public-nav::after { right: 8px; }

.ra-public-brand {
  display: inline-flex;
  align-items: center;
  min-height: 30px;
  margin-left: 28px;
  padding: 3px 9px;
  color: var(--ra-ink);
  background: #fff;
  border: 1px solid #999;
  box-shadow: inset 1px 1px 2px rgba(0, 0, 0, 0.10);
  font: 700 16px/1 var(--ra-label);
  letter-spacing: -0.5px;
  text-decoration: none;
  text-transform: uppercase;
}

.ra-public-nav-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-right: 28px;
}

.ra-public-nav-link,
.ra-public-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 36px;
  padding: 6px 12px;
  color: #555;
  background: linear-gradient(180deg, #fafafa, #e7e7e7);
  border: 1px solid #999;
  border-bottom: 3px solid #777;
  border-radius: 2px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.90),
    0 2px 0 rgba(0, 0, 0, 0.10);
  font: 700 11px/1 var(--ra-label);
  letter-spacing: 0.02em;
  text-decoration: none;
  text-transform: uppercase;
  white-space: nowrap;
  transform: translateY(0);
  transition:
    transform 120ms ease,
    box-shadow 120ms ease,
    background 120ms ease,
    color 120ms ease,
    border-color 120ms ease;
}

.ra-public-nav-link:hover,
.ra-public-nav-link:focus-visible,
.ra-public-action:hover,
.ra-public-action:focus-visible {
  color: #111;
  background: #fff;
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.95),
    0 4px 0 #777,
    0 7px 12px rgba(0, 0, 0, 0.14);
}

.ra-public-nav-link:active,
.ra-public-action:active {
  transform: translateY(2px);
  border-bottom-width: 1px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.56),
    0 1px 0 #777;
}

.ra-public-nav-link.is-active,
.ra-public-action--accent {
  color: #fff8ed;
  background: linear-gradient(180deg, #bd5149, #983a34);
  border-color: #7d2e2a;
  border-bottom-color: #6e2926;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.20),
    0 2px 0 #6e2926;
}

.ra-public-nav-link.is-active {
  pointer-events: none;
  transform: translateY(2px);
  border-bottom-width: 1px;
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.20),
    0 1px 0 #6e2926;
}

.ra-public-action--accent:hover,
.ra-public-action--accent:focus-visible {
  color: #fff;
  background: linear-gradient(180deg, #c95c52, #983a34);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.20),
    0 4px 0 #6e2926,
    0 7px 12px rgba(117, 46, 42, 0.18);
}

/* =========================================================
   Shared folder plate
========================================================= */

.ra-public-folder {
  width: 100%;
  position: relative;
  overflow: visible;
  padding: clamp(34px, 5vw, 64px);
  border: 1px solid var(--ra-paper-edge);
  border-radius: 2px 12px 2px 2px;
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.30), transparent 34%),
    repeating-linear-gradient(
      0deg,
      transparent 0 5px,
      rgba(83, 68, 47, 0.018) 5px 6px
    ),
    var(--ra-paper);
  box-shadow:
    0 22px 58px var(--ra-shadow),
    0 4px 0 rgba(18, 15, 11, 0.28),
    inset 0 0 0 1px rgba(255, 250, 236, 0.42),
    inset 0 22px 42px rgba(255, 255, 255, 0.10);
}

.ra-public-folder::before {
  content: attr(data-folder-label);
  position: absolute;
  top: -20px;
  left: 0;
  z-index: 2;
  height: 20px;
  padding: 4px 16px;
  border: 1px solid var(--ra-paper-edge);
  border-bottom: 0;
  border-radius: 4px 4px 0 0;
  background: linear-gradient(180deg, #eee6d5, #ded2ba);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.58),
    0 -1px 0 rgba(18, 15, 11, 0.10);
  color: var(--ra-rust);
  font: 700 10px/1 var(--ra-label);
  letter-spacing: 0.10em;
  pointer-events: none;
  white-space: nowrap;
}

.ra-public-kicker,
.ra-public-card-index {
  color: var(--ra-rust);
  font: 700 11px/1 var(--ra-label);
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.ra-public-title {
  margin: 16px 0 0;
  color: var(--ra-ink);
  font: 700 clamp(36px, 5vw, 64px)/1.02 var(--ra-label);
  letter-spacing: -0.05em;
  text-transform: uppercase;
}

.ra-public-copy {
  max-width: 700px;
  margin: 24px 0 0;
  color: var(--ra-muted);
  font: 400 clamp(18px, 2.25vw, 22px)/1.55 var(--ra-body);
}

.ra-public-rule {
  height: 1px;
  margin: 42px 0 26px;
  background: rgba(104, 86, 61, 0.24);
}

.ra-public-card-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.ra-public-card {
  min-width: 0;
  padding: 18px;
  border: 1px solid rgba(122, 102, 75, 0.24);
  border-radius: 8px;
  background:
    linear-gradient(145deg, rgba(255, 255, 255, 0.60), rgba(255, 255, 255, 0.12)),
    var(--ra-paper-light);
  box-shadow:
    0 8px 18px rgba(63, 48, 30, 0.10),
    inset 0 1px 0 rgba(255, 255, 255, 0.64);
}

.ra-public-card h2 {
  margin: 10px 0 0;
  color: var(--ra-ink);
  font: 700 16px/1.2 var(--ra-label);
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.ra-public-card p {
  margin: 8px 0 0;
  color: var(--ra-muted);
  font: 400 16px/1.45 var(--ra-body);
}

.ra-public-cta-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
  margin-top: 30px;
}

.ra-public-cta-primary,
.ra-public-cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 20px;
  border-radius: 5px;
  font: 700 12px/1 var(--ra-label);
  letter-spacing: 0.07em;
  text-decoration: none;
  text-transform: uppercase;
  transform: translateY(0);
  transition:
    transform 120ms ease,
    box-shadow 120ms ease,
    background 120ms ease,
    border-color 120ms ease;
}

.ra-public-cta-primary {
  color: #f4f1e8;
  border: 1px solid #24231f;
  background: linear-gradient(180deg, #504d43, #302f2a);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.18),
    inset 0 -1px 0 rgba(0, 0, 0, 0.32),
    0 4px 0 #211f1b,
    0 8px 15px rgba(36, 32, 25, 0.18);
}

.ra-public-cta-secondary {
  color: #38342d;
  border: 1px solid #9c8f78;
  background: linear-gradient(180deg, #fbf7ec, #e0d6bf);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.88),
    inset 0 -1px 0 rgba(114, 99, 74, 0.18),
    0 4px 0 #9a8d76,
    0 8px 15px rgba(36, 32, 25, 0.12);
}

.ra-public-cta-primary:hover,
.ra-public-cta-primary:focus-visible,
.ra-public-cta-secondary:hover,
.ra-public-cta-secondary:focus-visible {
  color: #fff8ed;
  border-color: #6e342c;
  background: linear-gradient(180deg, #a15a4c, #7f4037);
  transform: translateY(-1px);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.20),
    0 5px 0 #5d2f29,
    0 10px 18px rgba(94, 47, 41, 0.20);
}

.ra-public-cta-primary:active,
.ra-public-cta-secondary:active {
  transform: translateY(3px);
  border-bottom-width: 1px;
  box-shadow: 0 1px 0 #5d2f29;
}

.ra-public-note {
  max-width: 720px;
  margin: 18px 0 0;
  color: #656c71;
  font: 400 15px/1.45 var(--ra-body);
}

.ra-public-footer-note {
  max-width: 720px;
  margin: 30px 0 0;
  color: #656c71;
  font: 400 12px/1.5 var(--ra-label);
}

@media (max-width: 720px) {
  :root { --ra-gutter: 14px; }

  .ra-public-frame {
    margin-top: 24px;
    margin-bottom: 70px;
  }

  .ra-public-nav {
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    padding: 12px 16px;
    margin-bottom: 28px;
  }

  .ra-public-nav::before,
  .ra-public-nav::after {
    top: 18px;
    transform: none;
  }

  .ra-public-brand { margin-left: 20px; }

  .ra-public-nav-actions {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    width: calc(100% - 40px);
    margin: 0 0 0 20px;
    gap: 10px;
  }

  .ra-public-nav-link,
  .ra-public-action {
    width: 100%;
  }

  .ra-public-folder {
    padding: 30px 24px;
  }

  .ra-public-card-grid {
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .ra-public-cta-row {
    display: grid;
    grid-template-columns: 1fr;
    gap: 10px;
  }

  .ra-public-cta-primary,
  .ra-public-cta-secondary {
    width: 100%;
  }
}