@import url('https://fonts.googleapis.com/css2?family=Lora:wght@500;600&family=Inter:wght@400;500;600&display=swap');

:root {
  --color-bg: #F7F6F2;
  --color-surface: #FFFFFF;
  --color-surface-2: #EFEDE7;
  --color-text: #22252B;
  --color-text-muted: #666B74;
  --color-border: #E3E0D8;
  --color-accent: #0E7C86;
  --color-accent-contrast: #FFFFFF;
  --color-accent-soft: #E3F1F1;
  --color-green: #3F8F5F;
  --color-green-soft: #E7F3EA;
  --color-yellow: #9C6B10;
  --color-yellow-soft: #FBF1DD;
  --color-red: #AE3B3B;
  --color-red-soft: #F7E7E6;
  --color-black: #2A2320;
  --color-black-soft: #ECE6E3;
  --color-danger: #B3261E;
  --radius-sm: 10px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --font-ui: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  --font-head: 'Lora', Georgia, serif;
  --shadow-sm: 0 1px 2px rgba(30, 25, 15, 0.06), 0 1px 1px rgba(30,25,15,0.04);
  --shadow-md: 0 4px 16px rgba(30, 25, 15, 0.10);
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #15171A;
    --color-surface: #1D2024;
    --color-surface-2: #262A2F;
    --color-text: #EDEEF0;
    --color-text-muted: #9BA3AE;
    --color-border: #2E3338;
    --color-accent: #35BCC7;
    --color-accent-contrast: #072226;
    --color-accent-soft: #15353A;
    --color-green: #6FBE8C;
    --color-green-soft: #16261C;
    --color-yellow: #E0B25C;
    --color-yellow-soft: #2B2316;
    --color-red: #E08B8B;
    --color-red-soft: #2E1C1C;
    --color-black: #EDEEF0;
    --color-black-soft: #26201D;
    --shadow-sm: 0 1px 2px rgba(0,0,0,0.4);
    --shadow-md: 0 4px 20px rgba(0,0,0,0.5);
  }
}
:root[data-theme="dark"] {
  --color-bg: #15171A;
  --color-surface: #1D2024;
  --color-surface-2: #262A2F;
  --color-text: #EDEEF0;
  --color-text-muted: #9BA3AE;
  --color-border: #2E3338;
  --color-accent: #35BCC7;
  --color-accent-contrast: #072226;
  --color-accent-soft: #15353A;
  --color-green: #6FBE8C;
  --color-green-soft: #16261C;
  --color-yellow: #E0B25C;
  --color-yellow-soft: #2B2316;
  --color-red: #E08B8B;
  --color-red-soft: #2E1C1C;
  --color-black: #EDEEF0;
  --color-black-soft: #26201D;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-ui);
  font-size: 16px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}
h1, h2, h3 { font-family: var(--font-head); font-weight: 600; margin: 0 0 var(--space-3); }
p { margin: 0 0 var(--space-3); }
button { font-family: inherit; }
a { color: var(--color-accent); }
.visually-hidden {
  position: absolute; width: 1px; height: 1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap;
}

#app {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

.screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
  padding: var(--space-5) var(--space-4);
  padding-top: calc(var(--space-5) + var(--safe-top));
}
.screen-centered { justify-content: center; }

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 600;
  margin-bottom: var(--space-6);
}
.brand-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--color-accent);
}

.lead { color: var(--color-text-muted); font-size: 17px; }

.bullets { list-style: none; margin: var(--space-5) 0; padding: 0; display: flex; flex-direction: column; gap: var(--space-4); }
.bullets li {
  display: flex; gap: var(--space-3); align-items: flex-start;
  font-size: 16px;
}
.bullets .num {
  flex: none;
  width: 28px; height: 28px; border-radius: 50%;
  background: var(--color-accent-soft); color: var(--color-accent);
  display: flex; align-items: center; justify-content: center;
  font-weight: 600; font-size: 14px;
}

.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: var(--space-2);
  min-height: 48px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-md);
  border: none;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 150ms ease, opacity 150ms ease, background 150ms ease;
  touch-action: manipulation;
}
.btn:active { transform: scale(0.98); }
.btn-primary { background: var(--color-accent); color: var(--color-accent-contrast); width: 100%; }
.btn-primary:disabled { opacity: 0.45; cursor: not-allowed; }
.btn-secondary { background: var(--color-surface-2); color: var(--color-text); width: 100%; }
.btn-ghost { background: transparent; color: var(--color-text-muted); min-height: 40px; padding: 0 var(--space-3); }
.btn-danger { background: var(--color-danger); color: #fff; width: 100%; }
.btn-sm { min-height: 36px; padding: 0 var(--space-3); font-size: 14px; border-radius: var(--radius-sm); }
.btn-row { display: flex; gap: var(--space-3); flex-wrap: wrap; }
.btn-row .btn { width: auto; flex: 1; }

.field { margin-bottom: var(--space-5); }
.field label { display: block; font-weight: 500; margin-bottom: var(--space-2); font-size: 15px; }
.field .hint { color: var(--color-text-muted); font-size: 13px; margin-top: var(--space-1); }
input[type=text], input[type=email], textarea {
  width: 100%;
  font-size: 16px;
  font-family: inherit;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  min-height: 48px;
  resize: vertical;
}
input:focus, textarea:focus, button:focus-visible, .chip:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}
textarea { line-height: 1.5; }

.checkbox-row {
  display: flex; align-items: flex-start; gap: var(--space-3);
  background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-md); padding: var(--space-4); cursor: pointer;
}
.checkbox-row input { width: 22px; height: 22px; margin-top: 2px; flex: none; }

.progress-dots { display: flex; gap: var(--space-2); margin-bottom: var(--space-5); }
.progress-dots .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-border); }
.progress-dots .dot.active { background: var(--color-accent); width: 20px; border-radius: 4px; }

.yn-row { display: flex; flex-direction: column; gap: var(--space-4); margin-bottom: var(--space-5); }
.yn-q { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius-md); padding: var(--space-4); }
.yn-q p { font-weight: 500; margin-bottom: var(--space-3); }
.yn-choices { display: flex; gap: var(--space-3); }
.yn-choices button {
  flex: 1; min-height: 48px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border); background: var(--color-surface);
  color: var(--color-text); font-weight: 600; cursor: pointer;
}
.yn-choices button.selected { background: var(--color-accent-soft); border-color: var(--color-accent); color: var(--color-accent); }

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
}

.resource-list { list-style: none; padding: 0; margin: var(--space-4) 0; display: flex; flex-direction: column; gap: var(--space-3); }
.resource-list li { background: var(--color-surface-2); border-radius: var(--radius-sm); padding: var(--space-3) var(--space-4); font-size: 15px; }
.resource-list a { font-weight: 600; }

.heat-scale { display: flex; gap: var(--space-2); margin: var(--space-3) 0; }
.heat-scale button {
  flex: 1; min-height: 48px; border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border); background: var(--color-surface);
  font-weight: 700; cursor: pointer; color: var(--color-text);
}
.heat-scale button.selected { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-accent-contrast); }
.heat-labels { display: flex; justify-content: space-between; font-size: 12px; color: var(--color-text-muted); margin-bottom: var(--space-5); }

.invite-box {
  display: flex; align-items: center; gap: var(--space-2);
  background: var(--color-surface-2); border-radius: var(--radius-sm);
  padding: var(--space-3) var(--space-4); font-family: monospace; font-size: 14px;
  word-break: break-all; margin-bottom: var(--space-4);
}
.waiting-pulse { display: flex; align-items: center; gap: var(--space-3); color: var(--color-text-muted); margin-top: var(--space-5); }
.pulse-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--color-accent); animation: pulse 1.6s ease-in-out infinite; }
@keyframes pulse { 0%, 100% { opacity: .3; transform: scale(0.8); } 50% { opacity: 1; transform: scale(1.1); } }

/* ---- chat room ---- */
.chat-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: var(--space-3) var(--space-4);
  padding-top: calc(var(--space-3) + var(--safe-top));
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  position: sticky; top: 0; z-index: 10;
}
.chat-header-info { display: flex; flex-direction: column; min-width: 0; }
.chat-header-info .name { font-weight: 600; font-size: 16px; display: flex; align-items: center; gap: var(--space-2); }
.chat-header-info .status { font-size: 12px; color: var(--color-text-muted); }
.status-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--color-border); flex: none; }
.status-dot.online { background: var(--color-green); }
.chat-header-actions { display: flex; gap: var(--space-1); align-items: center; }
.icon-btn {
  width: 44px; height: 44px; border-radius: 50%; border: none; background: transparent;
  display: flex; align-items: center; justify-content: center; cursor: pointer; color: var(--color-text);
}
.icon-btn:hover { background: var(--color-surface-2); }

.chat-body { flex: 1; overflow-y: auto; padding: var(--space-4); display: flex; flex-direction: column; gap: var(--space-3); max-width: 640px; width: 100%; margin: 0 auto; }
.msg-row { display: flex; }
.msg-row.mine { justify-content: flex-end; }
.bubble {
  max-width: 78%;
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md);
  font-size: 15.5px;
  white-space: pre-wrap;
  word-wrap: break-word;
  box-shadow: var(--shadow-sm);
}
.msg-row.mine .bubble { background: var(--color-accent); color: var(--color-accent-contrast); border-bottom-right-radius: 4px; }
.msg-row.theirs .bubble { background: var(--color-surface); color: var(--color-text); border-bottom-left-radius: 4px; border: 1px solid var(--color-border); }
.bubble-meta { font-size: 11px; opacity: 0.75; margin-top: var(--space-1); display: block; }

.sys-row { display: flex; justify-content: center; }
.sys-pill {
  background: var(--color-surface-2); color: var(--color-text-muted);
  font-size: 12.5px; padding: var(--space-2) var(--space-4); border-radius: 999px;
  text-align: center; max-width: 90%;
}

.mediator-card {
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  font-size: 14.5px;
  align-self: center;
  max-width: 92%;
}
.mediator-card .label { font-weight: 700; color: var(--color-accent); font-size: 12px; text-transform: uppercase; letter-spacing: 0.04em; margin-bottom: var(--space-2); display: block; }

.composer-area {
  border-top: 1px solid var(--color-border);
  background: var(--color-bg);
  padding: var(--space-3) var(--space-4);
  padding-bottom: calc(var(--space-3) + var(--safe-bottom));
  position: sticky; bottom: 0;
}
.composer-row { display: flex; gap: var(--space-2); align-items: flex-end; max-width: 640px; margin: 0 auto; }
.composer-row textarea { flex: 1; max-height: 140px; }
.send-fab {
  flex: none; width: 48px; height: 48px; border-radius: 50%;
  background: var(--color-accent); color: var(--color-accent-contrast);
  border: none; display: flex; align-items: center; justify-content: center; cursor: pointer;
}
.send-fab:disabled { opacity: 0.4; }

/* intervention cards shown above composer */
.intervention {
  max-width: 640px; margin: 0 auto var(--space-3); padding: var(--space-4);
  border-radius: var(--radius-lg); border: 1px solid; animation: slideup 180ms ease;
}
@keyframes slideup { from { transform: translateY(10px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }
.intervention-yellow { background: var(--color-yellow-soft); border-color: var(--color-yellow); }
.intervention-red { background: var(--color-red-soft); border-color: var(--color-red); }
.intervention-black { background: var(--color-black-soft); border-color: var(--color-black); }
.intervention-neutral { background: var(--color-surface); border-color: var(--color-border); }
.intervention h3 { font-size: 16px; margin-bottom: var(--space-2); }
.intervention .close-x {
  float: right; background: none; border: none; font-size: 20px; cursor: pointer;
  color: var(--color-text-muted); width: 36px; height: 36px; border-radius: 50%;
}
.option-list { display: flex; flex-direction: column; gap: var(--space-2); margin: var(--space-3) 0; }
.option-chip {
  text-align: left; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius-sm); padding: var(--space-3); cursor: pointer;
}
.option-chip .ol { font-weight: 700; font-size: 12px; text-transform: uppercase; color: var(--color-accent); display: block; margin-bottom: 4px; }
.option-chip .ot { font-size: 15px; }
.option-chip:hover { border-color: var(--color-accent); }

.chip-row { display: flex; flex-wrap: wrap; gap: var(--space-2); margin: var(--space-3) 0; }
.chip {
  padding: var(--space-2) var(--space-4); border-radius: 999px; border: 1.5px solid var(--color-border);
  background: var(--color-surface); cursor: pointer; font-size: 14px; min-height: 40px;
}
.chip.selected { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-accent-contrast); }

/* pause overlay */
.overlay {
  position: fixed; inset: 0; background: var(--color-bg); z-index: 100;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  padding: var(--space-5); text-align: center;
}
.breathe-circle {
  width: 140px; height: 140px; border-radius: 50%;
  background: var(--color-accent-soft); border: 2px solid var(--color-accent);
  margin-bottom: var(--space-6);
  animation: breathe 10s ease-in-out infinite;
}
@keyframes breathe {
  0% { transform: scale(0.7); }
  40% { transform: scale(1.15); }
  100% { transform: scale(0.7); }
}
.pause-timer { font-size: 40px; font-weight: 700; font-family: var(--font-head); margin-bottom: var(--space-3); }

@media (prefers-reduced-motion: reduce) {
  .breathe-circle, .pulse-dot, .intervention { animation: none !important; }
}

footer.lang-toggle { display: flex; justify-content: center; gap: var(--space-2); padding: var(--space-4); }
footer.lang-toggle button {
  background: none; border: 1px solid var(--color-border); border-radius: var(--radius-sm);
  padding: var(--space-2) var(--space-3); cursor: pointer; color: var(--color-text-muted); font-size: 13px;
}
footer.lang-toggle button.active { border-color: var(--color-accent); color: var(--color-accent); font-weight: 600; }

.menu-sheet {
  position: fixed; inset: 0; background: rgba(0,0,0,0.4); z-index: 50;
  display: flex; align-items: flex-end;
}
.menu-sheet .sheet {
  background: var(--color-surface); width: 100%; border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  padding: var(--space-4); padding-bottom: calc(var(--space-5) + var(--safe-bottom));
  max-width: 640px; margin: 0 auto;
}
.menu-item {
  width: 100%; text-align: left; background: none; border: none; padding: var(--space-4);
  font-size: 16px; cursor: pointer; color: var(--color-text); display: flex; align-items: center; gap: var(--space-3);
  border-radius: var(--radius-sm);
}
.menu-item:hover { background: var(--color-surface-2); }
.menu-item.danger { color: var(--color-danger); }

.scale-row { display: flex; gap: var(--space-2); margin: var(--space-2) 0 var(--space-1); }
.scale-row button {
  flex: 1; min-height: 44px; border-radius: var(--radius-sm); border: 1.5px solid var(--color-border);
  background: var(--color-surface); cursor: pointer; font-weight: 600;
}
.scale-row button.selected { background: var(--color-accent); border-color: var(--color-accent); color: var(--color-accent-contrast); }
.scale-labels { display: flex; justify-content: space-between; font-size: 11px; color: var(--color-text-muted); margin-bottom: var(--space-4); }

.toast {
  position: fixed; bottom: calc(90px + var(--safe-bottom)); left: 50%; transform: translateX(-50%);
  background: var(--color-black); color: var(--color-bg); padding: var(--space-3) var(--space-5);
  border-radius: 999px; font-size: 14px; z-index: 200; box-shadow: var(--shadow-md);
}

@media (max-width: 380px) {
  .screen { padding-left: var(--space-3); padding-right: var(--space-3); }
}