/* ── Variables ─────────────────────────────────────────────────────────────── */
:root {
  --color-primary:    #00B5E2;
  --color-primary-dk: #0090B8;
  --color-secondary:  #6B21A8;
  --color-secondary-dk: #531A84;
  --color-danger:     #DC2626;
  --color-danger-dk:  #B91C1C;
  --color-bg:         #F0F8FC;
  --color-card:       #FFFFFF;
  --color-border:     #D1E8F0;
  --color-text:       #1E293B;
  --color-text-muted: #64748B;
  --color-success:    #16A34A;
  --radius:           12px;
  --radius-sm:        8px;
  --shadow:           0 2px 12px rgba(0,0,0,0.08);
  --shadow-card:      0 4px 20px rgba(0,0,0,0.10);
}

/* ── Reset ─────────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', system-ui, -apple-system, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  min-height: 100vh;
  line-height: 1.6;
}

/* ── Utility ───────────────────────────────────────────────────────────────── */
.hidden { display: none !important; }

/* ── Buttons ───────────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.6rem 1.4rem;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 0.15s, opacity 0.15s, transform 0.1s;
  text-decoration: none;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

.btn-primary   { background: var(--color-primary);   color: #fff; }
.btn-primary:hover:not(:disabled)   { background: var(--color-primary-dk); }

.btn-secondary { background: var(--color-secondary); color: #fff; }
.btn-secondary:hover:not(:disabled) { background: var(--color-secondary-dk); }

.btn-danger    { background: var(--color-danger);    color: #fff; }
.btn-danger:hover:not(:disabled)    { background: var(--color-danger-dk); }

.btn-outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}
.btn-outline:hover:not(:disabled) { background: var(--color-primary); color: #fff; }

.btn-large { padding: 0.85rem 2.2rem; font-size: 1.1rem; border-radius: var(--radius); }

/* ── Landing Page ──────────────────────────────────────────────────────────── */
.landing-page {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 2rem;
}

.landing-container {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  max-width: 480px;
  width: 100%;
  text-align: center;
}

.logo-main {
  width: min(320px, 80vw);
  height: auto;
}

.tagline {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  max-width: 360px;
}

.join-hint {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  max-width: 340px;
}

.error-message {
  color: var(--color-danger);
  font-size: 0.9rem;
  text-align: center;
}

/* ── Session Page Layout ───────────────────────────────────────────────────── */
.session-page {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

/* Top bar */
.top-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 1.5rem;
  background: var(--color-card);
  border-bottom: 1px solid var(--color-border);
  box-shadow: var(--shadow);
  position: sticky;
  top: 0;
  z-index: 100;
}

.logo-small {
  height: 36px;
  width: auto;
}

.session-id-label {
  font-size: 0.82rem;
  color: var(--color-text-muted);
  font-family: monospace;
}

/* Starter controls bar */
.starter-controls {
  background: linear-gradient(135deg, #EFF8FF 0%, #F3E8FF 100%);
  border-bottom: 2px solid var(--color-primary);
  padding: 0.75rem 1.5rem;
}

.starter-controls-inner {
  max-width: 700px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.75rem;
  justify-content: space-between;
}

.starter-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-secondary);
}

.starter-buttons {
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.starter-buttons .btn {
  padding: 0.45rem 1rem;
  font-size: 0.875rem;
}

/* Question banner */
.question-banner {
  background: var(--color-primary);
  color: #fff;
  padding: 0.65rem 1.5rem;
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  flex-wrap: wrap;
}

.question-label {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  opacity: 0.85;
  white-space: nowrap;
}

.question-text {
  font-size: 1rem;
  font-weight: 600;
}

/* Main content */
.session-main {
  flex: 1;
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 2rem 1rem;
}

/* ── Card Sections ─────────────────────────────────────────────────────────── */
.card-section {
  background: var(--color-card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  padding: 2rem;
  width: 100%;
  max-width: 620px;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.card-section h2 {
  font-size: 1.4rem;
  color: var(--color-text);
  font-weight: 700;
}

.section-question {
  font-size: 1rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ── Lobby ─────────────────────────────────────────────────────────────────── */
.share-box {
  background: #F0F8FC;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.share-intro {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text-muted);
}

.share-row {
  display: flex;
  gap: 0.5rem;
}

.share-input {
  flex: 1;
  padding: 0.5rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  font-family: monospace;
  background: #fff;
  color: var(--color-text);
  min-width: 0;
}

.copy-confirm {
  font-size: 0.8rem;
  color: var(--color-success);
  font-weight: 600;
}

.question-form-box {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.form-label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-text);
}

.text-input {
  width: 100%;
  padding: 0.65rem 0.9rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  transition: border-color 0.15s;
  color: var(--color-text);
  background: #fff;
}

.text-input:focus {
  outline: none;
  border-color: var(--color-primary);
}

.participant-count-box {
  font-size: 1rem;
  color: var(--color-text-muted);
}

.participant-count {
  font-size: 1.8rem;
  font-weight: 700;
  color: var(--color-primary);
}

.waiting-msg {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-style: italic;
}

/* ── Write Card ────────────────────────────────────────────────────────────── */
.card-textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-size: 1rem;
  resize: vertical;
  font-family: inherit;
  line-height: 1.5;
  color: var(--color-text);
  background: #fff;
  transition: border-color 0.15s;
}

.card-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}

.char-count {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  text-align: right;
}

/* ── Progress Bar ──────────────────────────────────────────────────────────── */
.progress-bar-box {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
}

.progress-label {
  font-size: 0.85rem;
  color: var(--color-text-muted);
}

.progress-track {
  width: 100%;
  height: 8px;
  background: #E2EFF5;
  border-radius: 99px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: var(--color-primary);
  border-radius: 99px;
  transition: width 0.4s ease;
}

/* ── Rate Card ─────────────────────────────────────────────────────────────── */
.round-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-secondary);
  font-weight: 700;
}

.assigned-card {
  background: #F8F4FF;
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 1rem 1.25rem;
}

.assigned-card-text {
  font-size: 1.05rem;
  line-height: 1.6;
  color: var(--color-text);
}

.rating-prompt {
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

.rating-prompt strong {
  color: var(--color-primary);
  font-size: 1.15rem;
}

.rating-buttons {
  display: flex;
  gap: 0.4rem;
  flex-wrap: wrap;
}

.rating-btn {
  width: 44px;
  height: 44px;
  border: 2px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: #fff;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: border-color 0.15s, background 0.15s, color 0.15s;
  color: var(--color-text);
}

.rating-btn:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

.rating-btn.selected {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

/* ── Waiting ───────────────────────────────────────────────────────────────── */
.waiting-spinner {
  width: 48px;
  height: 48px;
  border: 4px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.9s linear infinite;
  align-self: center;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.waiting-detail {
  color: var(--color-text-muted);
  font-size: 0.95rem;
  text-align: center;
}

/* ── Results ───────────────────────────────────────────────────────────────── */
#results-container {
  background: #fff;
  padding: 1.5rem;
  border-radius: var(--radius-sm);
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.results-logo {
  width: 160px;
  height: auto;
}

.results-title {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-text);
}

.results-question {
  font-size: 0.95rem;
  color: var(--color-text-muted);
  font-style: italic;
  border-left: 3px solid var(--color-primary);
  padding-left: 0.75rem;
}

.results-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
  padding: 0;
}

.result-item {
  display: flex;
  align-items: flex-start;
  gap: 0.75rem;
  background: #F8F4FF;
  border-left: 4px solid var(--color-secondary);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
}

.result-rank {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-secondary);
  min-width: 28px;
}

.result-text {
  flex: 1;
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--color-text);
}

.result-score {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-primary);
  white-space: nowrap;
}

.results-actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  margin-top: 0.5rem;
}

/* ── Toast ─────────────────────────────────────────────────────────────────── */
.toast {
  position: fixed;
  bottom: 1.5rem;
  left: 50%;
  transform: translateX(-50%);
  background: #1E293B;
  color: #fff;
  padding: 0.7rem 1.4rem;
  border-radius: 99px;
  font-size: 0.9rem;
  font-weight: 500;
  box-shadow: 0 4px 20px rgba(0,0,0,0.25);
  z-index: 999;
  pointer-events: none;
  animation: toast-in 0.25s ease;
}

@keyframes toast-in {
  from { opacity: 0; transform: translateX(-50%) translateY(8px); }
  to   { opacity: 1; transform: translateX(-50%) translateY(0); }
}

/* ── Responsive ────────────────────────────────────────────────────────────── */
@media (max-width: 480px) {
  .card-section { padding: 1.25rem; }
  .rating-btn { width: 38px; height: 38px; font-size: 0.9rem; }
  .starter-controls-inner { flex-direction: column; align-items: flex-start; }
  .results-actions { flex-direction: column; }
  .results-actions .btn { width: 100%; }
}