/* =============================================================================
   PureBariatric Foundation Coach — Web Widget Styles
   Faceless brand. Plain text. No emoji. No italics.
   Background #F7F6F2, Border #D4D1CA, Ink #28251D, Accent #01696F (Hydra Teal)
   ============================================================================= */

:root {
  --bg: #F7F6F2;
  --border: #D4D1CA;
  --ink: #28251D;
  --ink-soft: #5C594F;
  --accent: #01696F;
  --accent-ink: #FFFFFF;
  --error: #8B1E1E;
  --member: #E9EAE3;
  --radius: 10px;
  --shadow: 0 1px 2px rgba(40, 37, 29, 0.05), 0 2px 8px rgba(40, 37, 29, 0.04);
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: "DM Sans", system-ui, -apple-system, sans-serif;
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.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;
}

.page {
  max-width: 720px;
  margin: 0 auto;
  padding: 32px 20px 64px;
  min-height: 100vh;
}

.card {
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 24px;
  box-shadow: var(--shadow);
}

/* ---- titles & text ---- */

.title {
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 12px;
  color: var(--ink);
  letter-spacing: -0.01em;
}

.lede {
  font-size: 15px;
  margin: 0 0 12px;
  color: var(--ink);
}

.note, .hint, .footer-note {
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0 0 16px;
}

.banner {
  background: var(--bg);
  border-left: 3px solid var(--accent);
  padding: 10px 12px;
  border-radius: 4px;
  font-size: 13px;
  color: var(--ink-soft);
  margin: 0 0 16px;
}

/* ---- gate form ---- */

.gate .label {
  display: block;
  font-size: 13px;
  font-weight: 500;
  color: var(--ink);
  margin: 16px 0 6px;
}

.input, .textarea {
  width: 100%;
  font-family: inherit;
  font-size: 15px;
  color: var(--ink);
  background: #FFFFFF;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 10px 12px;
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.input:focus, .textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(1, 105, 111, 0.15);
}

.textarea {
  resize: vertical;
  min-height: 56px;
  max-height: 180px;
  line-height: 1.4;
}

/* ---- buttons ---- */

.btn-primary {
  display: block;
  width: 100%;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: inherit;
  font-weight: 500;
  font-size: 15px;
  border: 0;
  border-radius: 6px;
  padding: 12px 16px;
  margin-top: 14px;
  cursor: pointer;
  transition: background 0.15s ease, opacity 0.15s ease;
}

.btn-primary:hover { background: #015257; }
.btn-primary:disabled {
  opacity: 0.55;
  cursor: not-allowed;
}

.btn-text {
  background: transparent;
  border: 0;
  font-family: inherit;
  font-size: 13px;
  color: var(--ink-soft);
  cursor: pointer;
  text-decoration: underline;
  padding: 4px 0;
}
.btn-text:hover { color: var(--ink); }

.error {
  color: var(--error);
  font-size: 13px;
  margin: 10px 0 0;
}

/* ---- chat ---- */

.chat-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}

.messages {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin: 16px 0 16px;
  max-height: 60vh;
  overflow-y: auto;
  padding-right: 4px;
}

.message {
  display: flex;
  flex-direction: column;
}

.message.member {
  align-items: flex-end;
}

.message-body {
  max-width: 92%;
  padding: 10px 14px;
  border-radius: var(--radius);
  font-size: 15px;
  line-height: 1.55;
  white-space: pre-wrap;
  word-break: break-word;
}

.message.coach .message-body {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--ink);
}

.message.member .message-body {
  background: var(--member);
  border: 1px solid var(--border);
  color: var(--ink);
}

.message.refusal .message-body {
  background: #FCF8EE;
  border: 1px solid #E0D5B0;
  color: var(--ink);
}

.message.red .message-body {
  background: #FCEEEE;
  border: 1px solid #E2B5B5;
  color: var(--ink);
}

.message.error .message-body {
  background: #FCEEEE;
  border: 1px solid #E2B5B5;
  color: var(--error);
}

.lesson-refs {
  font-size: 12px;
  color: var(--ink-soft);
  margin-top: 6px;
  padding-left: 14px;
}

/* typing indicator */
.message.typing .message-body::after {
  content: "...";
  letter-spacing: 2px;
  color: var(--ink-soft);
}

/* ---- composer ---- */

.composer {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 8px;
  align-items: end;
}

.composer .btn-primary {
  width: auto;
  margin: 0;
  padding: 12px 18px;
  min-width: 90px;
}

/* mobile */
@media (max-width: 520px) {
  .page { padding: 16px 12px 48px; }
  .card { padding: 20px 16px; }
  .title { font-size: 20px; }
  .composer { grid-template-columns: 1fr; }
  .composer .btn-primary { width: 100%; }
}