/* Transformative Thinking — Do a Reframe
   Clean, sparse, white/dark, Calibri-family type (Carlito). Mobile-first. */

:root {
  /* Palette from the Transformative Thinking book cover: deep purple → teal */
  --ink: #221833;
  --ink-soft: #6a6178;
  --paper: #ffffff;
  --paper-warm: #faf9fc;
  --line: #e6e1ee;
  --accent: #7a2e8f;        /* cover purple */
  --accent-2: #1fa8b8;      /* cover teal */
  --accent-soft: #f1e6f6;   /* light purple tint (user bubbles, experiment box) */
  --coach-bg: #f2f1f7;      /* cool lavender-grey (coach bubbles) */
  --radius: 14px;
  --font: "Carlito", Calibri, "Segoe UI", -apple-system, sans-serif;
}

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

html { height: 100%; }

body {
  font-family: var(--font);
  font-size: 18.5px;
  line-height: 1.45;
  color: var(--ink);
  background: var(--paper);
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  max-width: 640px;
  margin: 0 auto;
  padding: 0 16px env(safe-area-inset-bottom);
}

/* ---------- header ---------- */
header { padding: 28px 4px 10px; text-align: center; }

.brand {
  font-size: 15px;
  letter-spacing: 0.28em;
  font-weight: 700;
  background: linear-gradient(100deg, var(--accent) 20%, var(--accent-2) 90%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  margin-bottom: 10px;
}

h1 { font-size: 30px; font-weight: 700; letter-spacing: -0.01em; }

.tagline {
  color: var(--ink-soft);
  font-size: 16.5px;
  margin-top: 6px;
  max-width: 42ch;
  margin-left: auto;
  margin-right: auto;
}

/* ---------- step indicator ---------- */
.steps {
  display: flex;
  justify-content: center;
  gap: 22px;
  padding: 14px 0 10px;
  border-bottom: 1px solid var(--line);
}

.step { display: flex; flex-direction: column; align-items: center; gap: 4px; }

.step .dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--line);
  transition: background 0.3s, transform 0.3s;
}

.step .lbl { font-size: 13px; color: var(--ink-soft); letter-spacing: 0.04em; }

.step.active .dot { background: var(--accent); transform: scale(1.35); }
.step.active .lbl { color: var(--accent); font-weight: 700; }
.step.done .dot { background: var(--accent-2); }

/* ---------- chat ---------- */
main#chat {
  flex: 1;
  overflow-y: auto;
  padding: 18px 2px 12px;
  display: flex;
  flex-direction: column;
  gap: 12px;
  scroll-behavior: smooth;
}

.msg {
  max-width: 86%;
  padding: 10px 14px;
  border-radius: var(--radius);
  white-space: pre-wrap;
  overflow-wrap: break-word;
}

.msg.coach { background: var(--coach-bg); align-self: flex-start; border-bottom-left-radius: 4px; }
.msg.user  { background: var(--accent-soft); align-self: flex-end; border-bottom-right-radius: 4px; }

.msg.typing { color: var(--ink-soft); }
.msg.typing span { animation: blink 1.2s infinite; }
.msg.typing span:nth-child(2) { animation-delay: 0.2s; }
.msg.typing span:nth-child(3) { animation-delay: 0.4s; }
@keyframes blink { 0%, 60%, 100% { opacity: 0.25; } 30% { opacity: 1; } }

.msg.error {
  background: none;
  border: 1px dashed var(--line);
  color: var(--ink-soft);
  font-size: 15px;
  align-self: center;
  text-align: center;
}

/* ---------- the reframe card ---------- */
.card {
  align-self: stretch;
  border: 2px solid transparent;
  background:
    linear-gradient(var(--paper-warm), var(--paper-warm)) padding-box,
    linear-gradient(135deg, var(--accent), var(--accent-2)) border-box;
  border-radius: var(--radius);
  padding: 18px 18px 14px;
  margin: 4px 0;
}

.card .card-brand {
  font-size: 10.5px;
  letter-spacing: 0.26em;
  color: var(--ink-soft);
  text-align: center;
  margin-bottom: 12px;
}

.card dl { display: grid; gap: 10px; }

.card dt {
  font-size: 12.5px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--ink-soft);
}

.card dd { margin: 1px 0 0; }

.card dd.opposite { font-weight: 700; font-style: italic; }

.card .experiment-box {
  margin-top: 12px;
  background: var(--accent-soft);
  border-radius: 10px;
  padding: 10px 12px;
}

.card .experiment-box dt { color: var(--accent); }
.card .experiment-box dd { font-weight: 700; }

.card .when { font-size: 14.5px; color: var(--ink-soft); margin-top: 6px; }

.card-actions {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin-top: 14px;
  flex-wrap: wrap;
}

.card-actions button, .card-actions a {
  font-family: var(--font);
  font-size: 14px;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: none;
  color: var(--ink);
  cursor: pointer;
  text-decoration: none;
}

.card-actions .primary { background: var(--accent); border-color: var(--accent); color: var(--paper); }

.card-hint {
  text-align: center;
  font-size: 13px;
  color: var(--ink-soft);
  margin-top: 10px;
}

/* ---------- composer ---------- */
#composer {
  display: flex;
  gap: 8px;
  align-items: flex-end;
  padding: 10px 0 14px;
  border-top: 1px solid var(--line);
  background: var(--paper);
  position: sticky;
  bottom: 0;
}

#input {
  flex: 1;
  font-family: var(--font);
  font-size: 18.5px;
  line-height: 1.4;
  padding: 11px 14px;
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  resize: none;
  max-height: 130px;
  background: var(--paper-warm);
}

#input:focus { outline: none; border-color: var(--accent); }

#send {
  width: 46px; height: 46px;
  border-radius: 50%;
  border: none;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff;
  font-size: 22px;
  cursor: pointer;
  flex-shrink: 0;
}

#send:disabled { opacity: 0.4; cursor: default; }

/* ---------- footer ---------- */
footer {
  padding: 6px 4px 18px;
  text-align: center;
  font-size: 12.5px;
  color: var(--ink-soft);
}

footer a { color: inherit; }

.journal-line { margin-top: 4px; }

/* ---------- journal overlay ---------- */
#journal {
  position: fixed;
  inset: 0;
  background: rgba(28, 28, 28, 0.45);
  display: flex;
  align-items: flex-end;
  justify-content: center;
  z-index: 10;
}

#journal[hidden] { display: none; }

.journal-inner {
  background: var(--paper);
  width: 100%;
  max-width: 640px;
  max-height: 80dvh;
  overflow-y: auto;
  border-radius: 18px 18px 0 0;
  padding: 22px 18px 30px;
}

.journal-inner h2 { font-size: 20px; }

.journal-note { font-size: 13px; color: var(--ink-soft); margin: 4px 0 14px; }

#journal-cards .card { margin-bottom: 12px; }

#journal-close {
  font-family: var(--font);
  font-size: 15px;
  margin-top: 8px;
  padding: 9px 18px;
  border-radius: 999px;
  border: 1px solid var(--ink);
  background: none;
  cursor: pointer;
}

@media (min-width: 480px) {
  header { padding-top: 40px; }
  h1 { font-size: 34px; }
}