/* ==========================================================
   Smile — Main Stylesheet
   Design system: katuli.me tokens (IBM Plex, light mode only)
   ========================================================== */

@import url('https://fonts.googleapis.com/css2?family=IBM+Plex+Sans:wght@400;600;700&family=IBM+Plex+Serif:wght@400;700&family=IBM+Plex+Mono&display=swap');

/* ── Variables ─────────────────────────────────────────── */
:root {
  --bg:           #f8fafc;
  --ink:          #0f172a;
  --muted:        #64748b;
  --panel:        #ffffff;
  --line:         #e2e8f0;
  --brand:        #06b6d4;
  --brand-light:  #e0f7fa;
  --pass:         #059669;
  --fail:         #ef4444;
  --partial:      #f59e0b;
  --skip:         #64748b;

  --radius-panel: 20px;
  --radius-pill:  999px;
  --shadow-panel: 0 10px 26px rgba(15, 23, 42, 0.06);
  --transition:   0.2s ease;

  --font-sans:  'IBM Plex Sans', system-ui, sans-serif;
  --font-serif: 'IBM Plex Serif', Georgia, serif;
  --font-mono:  'IBM Plex Mono', monospace;
}

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

html, body {
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--ink);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

a {
  color: var(--brand);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

/* ── Layout ─────────────────────────────────────────────── */
.page-layout {
  display: flex;
  height: 100vh;
  overflow: hidden;
}

.sidebar {
  width: 320px;
  min-width: 280px;
  max-width: 360px;
  background: var(--panel);
  border-right: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  gap: 0;
  overflow-y: auto;
  padding: 24px 20px;
}

.viz-area {
  flex: 1;
  position: relative;
  overflow: hidden;
  background: var(--bg);
}

/* ── Logo / Header ──────────────────────────────────────── */
.smile-logo {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--ink);
  letter-spacing: -0.02em;
  margin-bottom: 4px;
}

.smile-logo span {
  color: var(--brand);
}

.smile-tagline {
  font-size: 0.8rem;
  color: var(--muted);
  margin-bottom: 20px;
}

/* ── Panels ─────────────────────────────────────────────── */
.panel {
  background: var(--panel);
  border-radius: var(--radius-panel);
  box-shadow: var(--shadow-panel);
  padding: 18px 16px;
}

.panel + .panel {
  margin-top: 12px;
}

.panel-title {
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--muted);
  margin-bottom: 10px;
}

/* ── Inspire Prompt ─────────────────────────────────────── */
.inspire-prompt {
  background: rgba(6, 182, 212, 0.06);
  border-left: 3px solid var(--brand);
  border-radius: 0 10px 10px 0;
  padding: 12px 14px;
  margin-bottom: 16px;
}

.inspire-heading {
  font-family: var(--font-serif);
  font-size: 0.92rem;
  font-weight: 700;
  color: var(--ink);
  margin-bottom: 6px;
  line-height: 1.3;
}

.inspire-body {
  font-size: 0.78rem;
  color: var(--muted);
  line-height: 1.55;
  margin: 0;
}

/* ── Room Selector ──────────────────────────────────────── */
.room-selector {
  margin-bottom: 16px;
}

.room-selector select,
.room-selector input[type="text"] {
  width: 100%;
  padding: 9px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  font-family: var(--font-sans);
  font-size: 0.875rem;
  color: var(--ink);
  background: var(--bg);
  outline: none;
  transition: border-color var(--transition);
}

.room-selector select:focus,
.room-selector input[type="text"]:focus {
  border-color: var(--brand);
  background: #fff;
}

.room-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 10px;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 6px;
}

.room-badge.event {
  background: rgba(6, 182, 212, 0.12);
  color: #0891b2;
  border: 1px solid rgba(6, 182, 212, 0.3);
}

.room-badge.global {
  background: rgba(5, 150, 105, 0.1);
  color: #047857;
  border: 1px solid rgba(5, 150, 105, 0.25);
}

.room-badge .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: currentColor;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50%       { opacity: 0.5; transform: scale(0.7); }
}

/* ── Submission Form ────────────────────────────────────── */
.submit-form {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.word-input-wrap {
  position: relative;
}

.word-input {
  width: 100%;
  padding: 10px 12px;
  border: 1.5px solid var(--line);
  border-radius: 12px;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--ink);
  background: #fff;
  resize: vertical;
  min-height: 72px;
  outline: none;
  transition: border-color var(--transition);
}

.word-input:focus {
  border-color: var(--brand);
}

.word-input.error {
  border-color: var(--fail);
}

/* Word / char count indicator */
.word-count-bar {
  display: flex;
  justify-content: space-between;
  font-size: 0.72rem;
  color: var(--muted);
  padding: 0 2px;
}

.word-count-bar .count-pill {
  font-weight: 600;
  transition: color var(--transition);
}

.word-count-bar .count-pill.at-limit {
  color: var(--fail);
}

/* Submit button */
.btn-submit {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 11px 20px;
  background: var(--brand);
  color: #fff;
  font-family: var(--font-sans);
  font-size: 0.9rem;
  font-weight: 600;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: filter var(--transition), transform var(--transition);
}

.btn-submit:hover {
  filter: brightness(1.07);
}

.btn-submit:active {
  transform: scale(0.98);
}

.btn-submit:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

/* Generic buttons */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 16px;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 0.8rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: filter var(--transition);
}

.btn-outline {
  background: transparent;
  border: 1.5px solid var(--line);
  color: var(--ink);
}

.btn-outline:hover {
  border-color: var(--brand);
  color: var(--brand);
}

/* Feedback messages */
.form-feedback {
  font-size: 0.8rem;
  padding: 7px 10px;
  border-radius: 8px;
  display: none;
}

.form-feedback.success {
  background: rgba(5, 150, 105, 0.1);
  color: var(--pass);
  display: block;
}

.form-feedback.error {
  background: rgba(239, 68, 68, 0.1);
  color: var(--fail);
  display: block;
}

.form-feedback.warning {
  background: rgba(245, 158, 11, 0.1);
  color: var(--partial);
  display: block;
}

/* ── Submission counter pill ────────────────────────────── */
.counter-pill {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 14px;
  background: var(--brand-light);
  border-radius: var(--radius-panel);
  margin-top: 12px;
}

.counter-pill .count-num {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--ink);
  font-family: var(--font-serif);
  line-height: 1;
}

.counter-pill .count-label {
  font-size: 0.78rem;
  color: var(--muted);
  font-weight: 600;
}

.counter-pill .unique-users {
  font-size: 0.7rem;
  color: var(--muted);
}

/* ── Presenter mode link ────────────────────────────────── */
.presenter-link {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--muted);
  margin-top: 14px;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px dashed var(--line);
  transition: border-color var(--transition), color var(--transition);
}

.presenter-link:hover {
  border-color: var(--brand);
  color: var(--brand);
  text-decoration: none;
}

/* ── Viz area ───────────────────────────────────────────── */
.viz-container {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.4s ease;
}

.viz-container canvas {
  max-width: 100%;
  max-height: 100%;
}

.viz-container.fading {
  opacity: 0;
}

/* Viz mode selector */
.viz-mode-bar {
  position: absolute;
  bottom: 16px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  gap: 6px;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(8px);
  padding: 5px 8px;
  border-radius: var(--radius-pill);
  box-shadow: var(--shadow-panel);
  border: 1px solid var(--line);
  z-index: 10;
}

.viz-mode-btn {
  padding: 5px 13px;
  border: none;
  border-radius: var(--radius-pill);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  background: transparent;
  color: var(--muted);
  transition: background var(--transition), color var(--transition);
}

.viz-mode-btn.active {
  background: var(--brand);
  color: #fff;
}

/* Empty state */
.viz-empty {
  text-align: center;
  color: var(--muted);
}

.viz-empty .empty-icon {
  font-size: 2.5rem;
  margin-bottom: 10px;
  opacity: 0.4;
}

.viz-empty p {
  font-size: 0.88rem;
}

/* ── PIN modal ──────────────────────────────────────────── */
.pin-overlay {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, 0.55);
  backdrop-filter: blur(3px);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}

.pin-overlay.visible {
  opacity: 1;
  pointer-events: all;
}

.pin-modal {
  background: var(--panel);
  border-radius: var(--radius-panel);
  box-shadow: 0 20px 60px rgba(15, 23, 42, 0.18);
  padding: 32px 28px;
  width: 340px;
  max-width: 95vw;
  text-align: center;
}

.pin-modal h2 {
  font-family: var(--font-serif);
  font-size: 1.2rem;
  margin-bottom: 8px;
}

.pin-modal p {
  font-size: 0.85rem;
  color: var(--muted);
  margin-bottom: 18px;
}

.pin-input {
  width: 100%;
  padding: 10px 14px;
  border: 1.5px solid var(--line);
  border-radius: 10px;
  font-family: var(--font-mono);
  font-size: 1.1rem;
  letter-spacing: 0.15em;
  text-align: center;
  outline: none;
  margin-bottom: 12px;
  transition: border-color var(--transition);
}

.pin-input:focus {
  border-color: var(--brand);
}

.pin-error {
  font-size: 0.78rem;
  color: var(--fail);
  min-height: 1.2em;
  margin-bottom: 10px;
}

/* ── Animations ─────────────────────────────────────────── */
@keyframes word-pop {
  0%   { transform: scale(0.5); opacity: 0; }
  70%  { transform: scale(1.08); opacity: 1; }
  100% { transform: scale(1); opacity: 1; }
}

@keyframes float-in {
  0%   { transform: translateY(30px); opacity: 0; }
  100% { transform: translateY(0); opacity: 1; }
}

@keyframes fade-in {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.word-pop {
  animation: word-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) forwards;
}

.float-in {
  animation: float-in 0.4s ease forwards;
}

/* ── Ticker words ───────────────────────────────────────── */
.ticker-wrap {
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
}

.ticker-track {
  display: flex;
  gap: 12px;
  white-space: nowrap;
  will-change: transform;
}

.ticker-badge {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 8px 18px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 1rem;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Responsive ─────────────────────────────────────────── */
@media (max-width: 640px) {
  .page-layout {
    flex-direction: column;
  }

  .sidebar {
    width: 100%;
    max-width: 100%;
    min-width: 0;
    border-right: none;
    border-bottom: 1px solid var(--line);
    max-height: 50vh;
    padding: 16px;
  }

  .viz-area {
    flex: 1;
    min-height: 0;
  }

  .smile-logo {
    font-size: 1.3rem;
  }
}