/* Circadian stylesheet for the investor portal.
   Palette and typography pulled from brand/brand-tokens.json v1.7.0.
   No em-dashes anywhere outside CSS custom property syntax.
*/

@font-face {
  font-family: "Outfit";
  src: url("assets/fonts/Outfit-Regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Outfit";
  src: url("assets/fonts/Outfit-Light.ttf") format("truetype");
  font-weight: 300;
  font-display: swap;
}
@font-face {
  font-family: "Barlow";
  src: url("assets/fonts/Barlow-Light.ttf") format("truetype");
  font-weight: 300;
  font-display: swap;
}
@font-face {
  font-family: "Aeion Mono";
  src: url("assets/fonts/aeion-mono-regular.ttf") format("truetype");
  font-weight: 400;
  font-display: swap;
}

:root {
  --ink: #2C2A28;
  --muted: #7A5E78;
  --rule: #E5D2DB;
  --accent: #DC7A4A;
  --bg: #F0E6D5;
  --surface: #FFFFFF;
  --error: #B8453A;

  --radius: 4px;
  --max-content: 760px;
  --max-viewer: 1100px;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  font-family: "Barlow", system-ui, sans-serif;
  font-weight: 300;
  color: var(--ink);
  background: var(--bg);
  line-height: 1.6;
  font-size: 16px;
}

h1, h2, h3 {
  font-family: "Outfit", sans-serif;
  font-weight: 400;
  letter-spacing: -0.005em;
  margin: 0 0 0.6em;
}
h1 { font-size: 2rem; line-height: 1.2; }
h2 { font-size: 1.05rem; text-transform: uppercase; letter-spacing: 0.08em; margin-top: 1.6em; }
h3 { font-size: 1rem; }

.mono { font-family: "Aeion Mono", monospace; }
.muted { color: var(--muted); }
.small { font-size: 0.85rem; }

/* ============================ HEADER ============================ */
.portal-header {
  max-width: var(--max-viewer);
  margin: 0 auto;
  padding: 2.5rem 1.5rem 1.5rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.9rem;
  border-bottom: 1px solid var(--rule);
}

.logo {
  height: 64px;
  width: auto;
  max-width: 320px;
}

.header-tag {
  font-family: "Aeion Mono", monospace;
  font-size: 0.78rem;
  letter-spacing: 0.22em;
  color: var(--muted);
  text-transform: uppercase;
}

/* ============================ STATES ============================ */
/* Hard rule: the [hidden] attribute must always collapse the element,
   even when a more specific .state rule sets display:flex. Without this
   both states render at once and the user scrolls through NDA + memo. */
[hidden] { display: none !important; }

.state {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ============================ NDA STATE ============================ */
.intro {
  max-width: var(--max-content);
  margin: 2.5rem auto 1.5rem;
  padding: 0 1.5rem;
}

.nda {
  max-width: var(--max-content);
  margin: 0 auto;
  padding: 1.5rem 1.5rem 2rem;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  font-size: 0.92rem;
}

.nda p {
  margin: 0 0 1rem;
}

.nda h2 {
  font-size: 0.9rem;
  margin-top: 1.4rem;
  color: var(--ink);
}

.nda-version {
  margin-top: 1.5rem;
  font-size: 0.75rem;
  text-align: right;
  font-family: "Aeion Mono", monospace;
}

/* ============================ NDA FORM ============================ */
.nda-form {
  max-width: var(--max-content);
  margin: 1.5rem auto;
  padding: 1.5rem 1.5rem 2rem;
  background: var(--surface);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin: 1rem 0 1.5rem;
}

.field {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}
.field-wide { grid-column: 1 / -1; }

.field > span {
  font-family: "Aeion Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

.field input {
  padding: 0.7rem 0.85rem;
  font-family: inherit;
  font-size: 1rem;
  font-weight: 300;
  color: var(--ink);
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  transition: border-color 0.15s ease;
}
.field input:focus {
  outline: none;
  border-color: var(--accent);
}
.field input:read-only {
  color: var(--muted);
  cursor: default;
}

/* ============================ SIGNATURE ============================ */
.signature-block {
  margin: 1.5rem 0;
}

.signature-label {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}
.signature-label span {
  font-family: "Aeion Mono", monospace;
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--muted);
}

#signature-canvas {
  display: block;
  width: 100%;
  max-width: 100%;
  height: 160px;
  background: var(--bg);
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  touch-action: none;
  cursor: crosshair;
}

.link-button {
  background: none;
  border: none;
  color: var(--accent);
  font-family: inherit;
  font-size: 0.8rem;
  cursor: pointer;
  padding: 0;
  text-decoration: underline;
}

/* ============================ CHECKBOX + SUBMIT ============================ */
.checkbox {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  margin: 1.25rem 0 1.5rem;
  font-size: 0.95rem;
  cursor: pointer;
}
.checkbox input {
  margin-top: 0.25rem;
  width: 18px;
  height: 18px;
  flex-shrink: 0;
  accent-color: var(--accent);
}

.form-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.primary-button,
.secondary-button {
  font-family: "Outfit", sans-serif;
  font-weight: 400;
  font-size: 0.95rem;
  letter-spacing: 0.04em;
  padding: 0.85rem 1.4rem;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  text-align: center;
  display: inline-block;
  transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.primary-button {
  background: var(--accent);
  color: var(--surface);
}
.primary-button:hover:not(:disabled) {
  background: #c46a3e;
}
.primary-button:disabled {
  background: var(--rule);
  color: var(--muted);
  cursor: not-allowed;
}

.secondary-button {
  background: transparent;
  color: var(--ink);
  border-color: var(--ink);
}
.secondary-button:hover {
  background: var(--ink);
  color: var(--surface);
}

.error {
  color: var(--error);
  font-size: 0.9rem;
  margin: 0;
}

/* ============================ GATED STATE ============================ */
.welcome {
  max-width: var(--max-viewer);
  margin: 2.5rem auto 1rem;
  padding: 0 1.5rem;
}

.memo-actions {
  max-width: var(--max-viewer);
  margin: 1rem auto 1.5rem;
  padding: 0 1.5rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.memo-viewer {
  max-width: var(--max-viewer);
  margin: 0 auto 2rem;
  padding: 0 1.5rem;
}

.memo-viewer iframe {
  width: 100%;
  height: 80vh;
  min-height: 600px;
  border: 1px solid var(--rule);
  border-radius: var(--radius);
  background: var(--surface);
}

/* ============================ FOOTER ============================ */
.portal-footer {
  max-width: var(--max-viewer);
  margin: auto auto 0;
  padding: 1.5rem;
  border-top: 1px solid var(--rule);
  text-align: center;
}
.portal-footer a {
  color: var(--accent);
  text-decoration: none;
}
.portal-footer a:hover {
  text-decoration: underline;
}

/* ============================ RESPONSIVE ============================ */
@media (max-width: 640px) {
  h1 { font-size: 1.6rem; }
  .form-grid { grid-template-columns: 1fr; }
  .field-wide { grid-column: auto; }
  .memo-viewer iframe { height: 70vh; }
  .header-tag { font-size: 0.68rem; letter-spacing: 0.18em; }
  .portal-header { padding: 1.75rem 1rem 1.25rem; gap: 0.7rem; }
  .logo { height: 48px; }
}