/* ===========================================================
   Cogaco — Design Tokens
   =========================================================== */
:root {
  /* Color */
  --ink: #15192B;
  --ink-soft: #2A2F45;
  --paper: #FAF9F6;
  --paper-dim: #F2F0EA;
  --slate: #5B6273;
  --hairline: #E2E0D8;
  --amber: #E8A33D;
  --amber-deep: #C9842A;
  --success: #3F7A5C;
  --white: #FFFFFF;

  /* Type */
  --font-display: 'Fraunces', serif;
  --font-body: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* Scale */
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 18px;

  /* Shadow */
  --shadow-sm: 0 1px 2px rgba(21, 25, 43, 0.06);
  --shadow-md: 0 8px 24px rgba(21, 25, 43, 0.08);
  --shadow-lg: 0 24px 64px rgba(21, 25, 43, 0.14);
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}

a { color: inherit; text-decoration: none; }

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

button { font-family: inherit; cursor: pointer; }

:focus-visible {
  outline: 2px solid var(--amber);
  outline-offset: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}

/* ===========================================================
   Layout helpers
   =========================================================== */
.wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 0 32px;
}

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--slate);
}

/* ===========================================================
   Buttons
   =========================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-md);
  padding: 13px 24px;
  font-size: 15px;
  font-weight: 600;
  font-family: var(--font-body);
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
  white-space: nowrap;
}

.btn-primary {
  background: var(--ink);
  color: var(--paper);
}
.btn-primary:hover {
  background: var(--ink-soft);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-accent {
  background: var(--amber);
  color: var(--ink);
}
.btn-accent:hover {
  background: var(--amber-deep);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn-ghost {
  background: transparent;
  color: var(--ink);
  border: 1.5px solid var(--hairline);
}
.btn-ghost:hover {
  border-color: var(--ink);
}

.btn-block { width: 100%; }

.btn-sm {
  padding: 9px 16px;
  font-size: 13px;
}

/* ===========================================================
   Nav
   =========================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 246, 0.88);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--hairline);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  max-width: 1120px;
  margin: 0 auto;
}

.wordmark {
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.01em;
  display: flex;
  align-items: baseline;
  gap: 2px;
}

.wordmark .dot {
  color: var(--amber);
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
  font-size: 15px;
  font-weight: 500;
}

.nav-links a {
  color: var(--slate);
  transition: color 0.15s ease;
}
.nav-links a:hover { color: var(--ink); }

.nav-cta {
  display: flex;
  gap: 12px;
  align-items: center;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  padding: 4px;
}

@media (max-width: 760px) {
  .nav-links { display: none; }
  .nav-toggle { display: block; }
}

/* ===========================================================
   Footer
   =========================================================== */
.site-footer {
  border-top: 1px solid var(--hairline);
  padding: 56px 32px 32px;
  margin-top: 120px;
}

.footer-grid {
  max-width: 1120px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
}

.footer-col h4 {
  font-size: 13px;
  color: var(--slate);
  margin: 0 0 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.footer-col a {
  display: block;
  font-size: 14px;
  color: var(--ink);
  padding: 6px 0;
  opacity: 0.78;
}
.footer-col a:hover { opacity: 1; }

.footer-bottom {
  max-width: 1120px;
  margin: 40px auto 0;
  padding-top: 24px;
  border-top: 1px solid var(--hairline);
  display: flex;
  justify-content: space-between;
  font-size: 13px;
  color: var(--slate);
  font-family: var(--font-mono);
}

@media (max-width: 760px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ===========================================================
   Form elements (signup / login)
   =========================================================== */
.field {
  margin-bottom: 20px;
}

.field label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--ink-soft);
}

.field input {
  width: 100%;
  padding: 13px 16px;
  border: 1.5px solid var(--hairline);
  border-radius: var(--radius-md);
  font-size: 15px;
  font-family: var(--font-body);
  background: var(--white);
  color: var(--ink);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.field input:focus {
  border-color: var(--ink);
  outline: none;
  box-shadow: 0 0 0 3px rgba(21, 25, 43, 0.08);
}

.field-hint {
  font-size: 12.5px;
  color: var(--slate);
  margin-top: 6px;
}

.field-error {
  font-size: 12.5px;
  color: #B0413E;
  margin-top: 6px;
  display: none;
}

/* domain-locked email input */
.email-domain-field {
  display: flex;
  align-items: stretch;
  border: 1.5px solid var(--hairline);
  border-radius: var(--radius-md);
  overflow: hidden;
  background: var(--white);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.email-domain-field:focus-within {
  border-color: var(--ink);
  box-shadow: 0 0 0 3px rgba(21, 25, 43, 0.08);
}

.email-domain-field input {
  border: none;
  flex: 1;
  padding: 13px 4px 13px 16px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  min-width: 0;
}
.email-domain-field input:focus { outline: none; box-shadow: none; }

.email-domain-suffix {
  display: flex;
  align-items: center;
  padding: 0 16px;
  font-family: var(--font-mono);
  font-size: 14.5px;
  color: var(--slate);
  background: var(--paper-dim);
  border-left: 1px solid var(--hairline);
  white-space: nowrap;
}

.checkbox-row {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: 13.5px;
  color: var(--slate);
  line-height: 1.5;
}

.checkbox-row input { margin-top: 3px; }
.checkbox-row a { color: var(--ink); text-decoration: underline; text-decoration-color: var(--hairline); }

.divider-or {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 24px 0;
  color: var(--slate);
  font-size: 13px;
  font-family: var(--font-mono);
}
.divider-or::before,
.divider-or::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--hairline);
}

.auth-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

.auth-side {
  background: var(--ink);
  color: var(--paper);
  padding: 56px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  overflow: hidden;
}

.auth-form-side {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px;
}

.auth-card {
  width: 100%;
  max-width: 420px;
}

.auth-card h1 {
  font-family: var(--font-display);
  font-size: 32px;
  margin: 0 0 8px;
  letter-spacing: -0.01em;
}

.auth-card .subhead {
  color: var(--slate);
  font-size: 15px;
  margin: 0 0 32px;
}

.stamp-grid {
  display: grid;
  gap: 14px;
  margin-top: auto;
  margin-bottom: auto;
}

.stamp-line {
  font-family: var(--font-mono);
  font-size: 14px;
  color: rgba(250, 249, 246, 0.55);
  display: flex;
  align-items: center;
  gap: 10px;
}

.stamp-line .at { color: var(--amber); }

.auth-side-top .wordmark { color: var(--paper); }

@media (max-width: 860px) {
  .auth-shell { grid-template-columns: 1fr; }
  .auth-side { display: none; }
}