:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.25vw, 0.875rem);
  --text-sm: clamp(0.875rem, 0.8rem + 0.35vw, 1rem);
  --text-base: clamp(1rem, 0.95rem + 0.25vw, 1.125rem);
  --text-lg: clamp(1.125rem, 1rem + 0.75vw, 1.5rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.25vw, 2.25rem);
  --text-2xl: clamp(2rem, 1.2rem + 2.5vw, 3.5rem);
  --text-hero: clamp(2.8rem, 0.8rem + 6vw, 6.8rem);

  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.25rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-10: 2.5rem;
  --space-12: 3rem;
  --space-16: 4rem;

  --color-bg: #f4f3f0;
  --color-surface: #faf9f6;
  --color-surface-2: #ffffff;
  --color-surface-offset: #ebe9e4;
  --color-text: #1a1a1a;
  --color-text-muted: #6b6963;
  --color-text-faint: #a8a59f;
  --color-divider: #d8d6d0;
  --color-border: #c8c5be;
  --color-accent: #b8893d;
  --color-accent-hover: #9c721f;
  --color-accent-glow: rgba(184, 137, 61, 0.2);

  --radius-sm: 2px;
  --radius-md: 4px;
  --radius-lg: 8px;
  --radius-pill: 9999px;
  --shadow-md: 0 4px 16px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.08);

  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-body: 'Inter', system-ui, sans-serif;
  --max: 880px;
}

* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  min-height: 100%;
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at 22% 8%, rgba(184, 137, 61, 0.18), transparent 38%),
    radial-gradient(circle at 80% 92%, rgba(26, 26, 26, 0.08), transparent 42%),
    var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.65;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

button {
  border: 1px solid var(--color-accent);
  background: var(--color-accent);
  color: #fff;
  padding: 0.75rem 1.25rem;
  border-radius: var(--radius-sm);
  cursor: pointer;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: var(--text-sm);
  font-weight: 600;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease, opacity 180ms ease;
}

button:hover:not(:disabled) {
  background: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  transform: translateY(-1px);
}

button.secondary {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

button.secondary:hover:not(:disabled) {
  color: var(--color-text);
  background: var(--color-surface-offset);
  border-color: var(--color-text);
}

button:disabled {
  cursor: wait;
  opacity: 0.55;
}

a {
  color: inherit;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: var(--radius-sm);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  background: color-mix(in oklab, var(--color-bg) 94%, transparent);
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
  border-bottom: 1px solid color-mix(in oklab, var(--color-divider) 70%, transparent);
}

.site-header-inner {
  width: min(100%, 1200px);
  margin-inline: auto;
  padding: var(--space-4) var(--space-6);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  font-family: var(--font-display);
  font-size: var(--text-lg);
  color: var(--color-text);
}

.brand-mark {
  width: 32px;
  height: 32px;
  display: grid;
  place-items: center;
  border-radius: var(--radius-md);
  background: var(--color-text);
  color: var(--color-accent);
  font-family: var(--font-display);
  font-style: italic;
  font-size: 0.95rem;
  line-height: 1;
}

.brand-name {
  font-style: italic;
}

.header-link,
.room-nav a,
.text-button {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.room-nav {
  display: flex;
  align-items: center;
  gap: var(--space-5);
  flex-wrap: wrap;
  justify-content: flex-end;
}

.text-button {
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  color: var(--color-text-muted);
  text-decoration: underline;
  text-decoration-color: var(--color-accent);
  text-decoration-thickness: 2px;
  text-underline-offset: 4px;
}

.text-button:hover:not(:disabled) {
  background: transparent;
  border-color: transparent;
  color: var(--color-text);
  transform: none;
}

.gate-body {
  display: grid;
  grid-template-rows: auto 1fr;
}

.gate-wrap {
  min-height: calc(100vh - 74px);
  display: grid;
  place-items: center;
  padding: var(--space-8) var(--space-6);
}

.gate-shell {
  width: min(92vw, 560px);
  text-align: center;
  padding: clamp(var(--space-8), 7vw, var(--space-16));
  background: color-mix(in oklab, var(--color-surface) 82%, transparent);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-lg);
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: var(--space-6);
}

.eyebrow::before,
.eyebrow::after {
  content: '';
  width: 30px;
  height: 1px;
  background: var(--color-text-faint);
}

.gate-shell h1,
.room-heading h1,
.full-screen h1,
.about-shell h1 {
  font-family: var(--font-display);
  font-style: italic;
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.03em;
}

.gate-shell h1 {
  font-size: var(--text-hero);
  color: var(--color-text);
  margin-bottom: var(--space-4);
}

.gate-copy {
  max-width: 34ch;
  margin: 0 auto var(--space-8);
  color: var(--color-accent);
  font-size: var(--text-lg);
}

.gate-card {
  display: grid;
  gap: var(--space-4);
}

.gate-card input,
textarea {
  width: 100%;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 0.95rem 1rem;
  background: rgba(255, 255, 255, 0.66);
  color: var(--color-text);
  outline: none;
}

.gate-card input:focus,
textarea:focus {
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px var(--color-accent-glow);
}

.gate-line,
.form-error,
.composer-note,
.site-return,
.intro-link {
  margin: 0;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

.gate-line,
.form-error,
.site-return {
  text-align: center;
}

.form-error {
  min-height: 1.4rem;
}

.site-return {
  margin-top: var(--space-6);
}

.chat-shell {
  width: min(100%, var(--max));
  min-height: calc(100vh - 74px);
  margin: 0 auto;
  display: grid;
  grid-template-rows: auto auto auto 1fr auto;
  padding: var(--space-8) var(--space-6) var(--space-6);
  gap: var(--space-5);
}

.room-heading {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  background: color-mix(in oklab, var(--color-surface) 78%, transparent);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.room-heading h1 {
  font-size: clamp(2.4rem, 8vw, 5rem);
  margin-bottom: var(--space-5);
}

.room-heading p:last-child {
  max-width: 58ch;
  margin-inline: auto;
  color: var(--color-text-muted);
}

.top-bar {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  letter-spacing: 0.02em;
}

.intro {
  border-top: 1px solid var(--color-divider);
  border-bottom: 1px solid var(--color-divider);
  padding: var(--space-5) 0;
  color: var(--color-text);
}

.intro p {
  margin: 0.15rem auto;
  max-width: 62ch;
}

.message-list {
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-2) 0 var(--space-4);
}

.message {
  max-width: min(92%, 660px);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius-md);
  white-space: pre-wrap;
  box-shadow: 0 1px 0 rgba(0, 0, 0, 0.03);
}

.message.user {
  align-self: flex-end;
  background: var(--color-surface-offset);
  border: 1px solid var(--color-divider);
}

.message.assistant {
  align-self: flex-start;
  background: rgba(250, 249, 246, 0.82);
  border: 1px solid var(--color-border);
}

.composer {
  border-top: 1px solid var(--color-divider);
  padding-top: var(--space-5);
  display: grid;
  gap: var(--space-4);
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
}

textarea {
  resize: vertical;
  min-height: 8rem;
  max-height: 18rem;
  line-height: 1.55;
}

.composer-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.full-screen {
  display: grid;
  place-items: center;
  text-align: center;
  padding: var(--space-10) var(--space-6);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  box-shadow: var(--shadow-md);
}

.full-screen h1,
.about-shell h1 {
  margin-bottom: var(--space-4);
  font-size: clamp(2.4rem, 8vw, 5rem);
}

.about-shell {
  width: min(92vw, 720px);
  margin: 12vh auto;
  padding: var(--space-8);
  background: color-mix(in oklab, var(--color-surface) 82%, transparent);
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-md);
}

.about-shell p {
  margin: 0 0 var(--space-4);
  max-width: 62ch;
}

.hidden {
  display: none;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@media (max-width: 640px) {
  .site-header-inner {
    align-items: flex-start;
    flex-direction: column;
    gap: var(--space-3);
  }

  .room-nav {
    justify-content: flex-start;
    gap: var(--space-4);
  }

  .gate-wrap {
    min-height: calc(100vh - 112px);
    padding-inline: var(--space-4);
  }

  .gate-shell,
  .room-heading,
  .about-shell {
    padding: var(--space-6);
  }

  .chat-shell {
    min-height: calc(100vh - 112px);
    padding-inline: var(--space-4);
  }

  .message {
    max-width: 100%;
  }

  .composer-actions button {
    flex: 1 1 100%;
  }
}

@media print {
  .site-header,
  .composer,
  .top-bar,
  .intro,
  .room-heading {
    display: none;
  }

  body {
    background: #fff;
    color: #000;
  }

  .chat-shell {
    display: block;
    width: 100%;
    max-width: none;
    padding: 0;
  }

  .message {
    max-width: 100%;
    border: 0;
    box-shadow: none;
    page-break-inside: avoid;
  }

  .message.user {
    display: none;
  }
}


.privacy-line {
  margin-top: var(--space-4);
  color: var(--color-text-muted);
  font-size: var(--text-xs);
  line-height: 1.55;
}

.button-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.75rem 1.25rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-sm);
  background: var(--color-accent);
  color: #fff;
  text-decoration: none;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  font-size: var(--text-sm);
  font-weight: 600;
}

.secondary-link {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.paywall-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  margin-top: var(--space-6);
}

.feedback-section {
  padding: var(--space-6);
  border: 1px solid var(--color-border);
  background: color-mix(in oklab, var(--color-surface) 88%, transparent);
  box-shadow: var(--shadow-md);
}

.feedback-copy h2 {
  margin-bottom: var(--space-3);
  font-family: var(--font-display);
  font-size: var(--text-xl);
  font-style: italic;
  font-weight: 400;
}

.feedback-copy p:last-child {
  color: var(--color-text-muted);
}

.feedback-form {
  display: grid;
  gap: var(--space-5);
  margin-top: var(--space-6);
}

.feedback-form fieldset {
  display: grid;
  gap: var(--space-3);
  border: 0;
  padding: 0;
}

.feedback-form legend,
.feedback-label {
  font-weight: 600;
}

.rating-row,
.choice-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}

.rating-row label,
.choice-row label {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.45rem 0.65rem;
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.52);
  cursor: pointer;
}

.feedback-footer {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.feedback-score {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
}

@media print {
  .feedback-section,
  .full-screen {
    display: none;
  }
}