/* When u free — main stylesheet
   Color scheme: purple + white only. Footer styles live separately in footer.html. */

:root {
  --purple: #534AB7;
  --purple-pale: #EEEDFE;
  --purple-tint: #F6F5FC;   /* lighter than purple-pale, used for weekend columns */
  --purple-border: #CECBF6;
  --purple-dark: #26215C;

  --white: #ffffff;
  --text: #000000;
  --text-mid: #4a4a44;
  --text-muted: #8a8a82;
  --border-light: #e0dbd0;
  --border-mid: #c8c2b4;

  --red: #791F1F;
  --red-pale: #FCEBEB;
  --red-border: #F7C1C1;

  --font-sans: 'DM Sans', sans-serif;
  --font-serif: 'Fraunces', serif;
  --font-mono: 'DM Mono', monospace;
}

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

body {
  font-family: var(--font-sans);
  font-size: 14px;
  color: var(--text);
  background: var(--white);
  line-height: 1.5;
}

.app-shell {
  max-width: 720px;
  margin: 0 auto;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* Header — always purple background, white text */
.app-header {
  background: var(--purple);
  color: var(--white);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 10;
}

.app-header .app-name {
  font-family: var(--font-serif);
  font-size: 19px;
  font-weight: 600;
  color: var(--white);
}

.app-header .header-right { display: flex; align-items: center; gap: 10px; }

.beta-pill {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  background: rgba(255,255,255,0.18);
  color: var(--white);
  padding: 3px 8px;
  border-radius: 12px;
}

.session-line {
  padding: 10px 20px;
  border: 0.5px solid var(--border-light);
  border-top: none;
}

.session-code-pill {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 22px;
  font-weight: 500;
  letter-spacing: 0.06em;
  color: var(--purple-dark);
  background: var(--purple-pale);
  padding: 5px 14px;
  border-radius: 20px;
}

.live-badge {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 12px;
  color: var(--white);
}
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: #fff; display: inline-block; opacity: 0.85; }

.event-line {
  padding: 10px 20px;
  border: 0.5px solid var(--border-light);
  border-top: none;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  font-size: 13px;
  color: var(--text-mid);
}

main { flex: 1; padding: 1.25rem 1.5rem 2rem; }

.hidden { display: none !important; }

/* Generic form elements */
label.field-label {
  display: block;
  font-size: 14px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--text-mid);
  margin-bottom: 6px;
}

input[type="text"] {
  width: 100%;
  font-family: var(--font-sans);
  font-size: 14px;
  padding: 9px 12px;
  border: 0.5px solid var(--border-light);
  border-radius: 10px;
  background: #faf9f6;
  outline: none;
  margin-bottom: 1.25rem;
  transition: border-color 0.15s;
}
input[type="text"]:focus { border-color: var(--purple); }

button { font-family: var(--font-sans); cursor: pointer; transition: all 0.15s; border: none; }
button:active { transform: scale(0.98); }

.btn-primary {
  width: 100%;
  font-size: 14px;
  font-weight: 500;
  padding: 10px;
  border-radius: 10px;
  border: 0.5px solid var(--purple);
  background: var(--purple);
  color: var(--white);
}
.btn-primary:disabled { opacity: 0.5; cursor: default; }

.btn-secondary {
  font-size: 14px;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 10px;
  border: 0.5px solid var(--border-light);
  background: #faf9f6;
  color: var(--text-mid);
}

.btn-small {
  font-size: 13px;
  padding: 6px 10px;
  border-radius: 8px;
  border: 0.5px solid var(--purple-border);
  background: var(--white);
  color: var(--purple-dark);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* Cards */
.card {
  background: var(--white);
  border: 0.5px solid var(--border-light);
  border-radius: 14px;
  padding: 1.5rem;
}

/* Landing choices */
.landing-choices { display: flex; flex-direction: column; gap: 12px; margin-top: 1rem; }

/* How to use disclosure */
.how-to-use { margin-top: 1.5rem; padding-top: 1rem; border-top: 0.5px solid var(--border-light); }
.how-to-use-toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: none;
  border: none;
  padding: 0;
  font-family: var(--font-sans);
  font-size: 14px;
  font-weight: 500;
  color: var(--text-mid);
}
.how-to-use-toggle i { font-size: 16px; color: var(--text-muted); transition: transform 0.15s; }
.how-to-use-toggle.open i { transform: rotate(180deg); }
.how-to-use-content { margin-top: 12px; font-size: 13px; color: var(--text-mid); }
.how-to-use-content ol { padding-left: 1.2rem; margin-bottom: 10px; }
.how-to-use-content li { margin-bottom: 6px; }
.how-to-use-content p { color: var(--text-muted); }

/* Tabs */
.tab-row { display: flex; gap: 8px; margin-bottom: 1rem; }
.tab-btn {
  font-size: 13px;
  font-weight: 500;
  padding: 7px 14px;
  border-radius: 10px;
  border: 0.5px solid var(--border-light);
  background: #faf9f6;
  color: var(--text-mid);
}
.tab-btn.active {
  background: var(--purple);
  border-color: var(--purple);
  color: var(--white);
}

/* Calendar */
.cal-grid {
  display: grid;
  grid-template-columns: repeat(7, 1fr);
  gap: 4px;
  margin-bottom: 1.25rem;
}
.cal-head {
  text-align: center;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  color: var(--text-muted);
  padding: 4px 0;
  border-radius: 6px;
}
.cal-head.weekend { background: var(--purple-tint); }

.cal-cell {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 8px 2px;
  border-radius: 10px;
  border: 0.5px solid var(--border-light);
  background: var(--white);
  font-size: 14px;
  font-weight: 500;
  color: var(--text);
}
.cal-cell.weekend { background: var(--purple-tint); }
.cal-cell.outside { opacity: 0.35; cursor: default; }
.cal-cell.selected { background: var(--purple-pale); border-color: var(--purple-border); color: var(--purple-dark); }

/* Selected date rows */
.sel-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 8px 0;
  border-bottom: 0.5px solid var(--border-light);
}
.sel-date { font-family: var(--font-mono); font-size: 13px; color: var(--text-mid); }
.chip {
  font-size: 12px;
  padding: 5px 10px;
  border-radius: 20px;
  border: 0.5px solid var(--border-light);
  background: #faf9f6;
  color: var(--text-mid);
  margin-left: 6px;
}
.chip.active { background: var(--purple-pale); border-color: var(--purple-border); color: var(--purple-dark); }

/* Status boxes */
.status-box {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  border-radius: 10px;
  padding: 10px 12px;
  margin-top: 12px;
}
.status-box.success { background: var(--purple-pale); color: var(--purple-dark); }
.status-box.error { background: var(--red-pale); color: var(--red); border: 0.5px solid var(--red-border); }

/* Best slot + heatmap */
.best-slot {
  background: var(--purple-pale);
  border: 0.5px solid var(--purple-border);
  border-radius: 12px;
  padding: 12px 14px;
  margin-bottom: 1.25rem;
}
.best-slot .label { font-size: 12px; color: var(--purple-dark); text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: 4px; }
.best-slot .value { font-family: var(--font-serif); font-size: 17px; font-weight: 600; color: var(--purple-dark); }

table.heatmap { width: 100%; border-collapse: collapse; table-layout: fixed; margin-bottom: 1.25rem; }
table.heatmap th { text-align: center; font-size: 12px; color: var(--text-muted); font-weight: 500; padding: 4px 0; }
table.heatmap th:first-child { text-align: left; width: 34%; }
table.heatmap td { padding: 6px; border-bottom: 0.5px solid var(--border-light); }
table.heatmap td:first-child { font-family: var(--font-mono); font-size: 13px; color: var(--text-mid); }
.heat-pill { text-align: center; font-family: var(--font-mono); font-size: 12px; font-weight: 500; border-radius: 8px; padding: 4px 0; }
.heat-0 { background: #faf9f6; color: var(--text-muted); border: 0.5px solid var(--border-light); }
.heat-1 { background: var(--purple-pale); color: var(--purple-dark); }
.heat-2 { background: var(--purple-border); color: var(--purple-dark); }
.heat-3 { background: var(--purple); color: var(--white); }

.participant-row { display: flex; align-items: center; gap: 10px; padding: 6px 0; }
.avatar { width: 30px; height: 30px; border-radius: 50%; background: var(--purple-pale); color: var(--purple-dark); display: flex; align-items: center; justify-content: center; font-size: 12px; font-weight: 500; }
.participant-name { font-size: 14px; color: var(--text); flex: 1; }
.pending-tag { font-size: 12px; color: var(--text-muted); display: flex; align-items: center; gap: 4px; }