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

:root {
  --bg:           #07090e;
  --surface:      #0d1018;
  --surface-2:    #141720;
  --border:       rgba(255, 255, 255, 0.07);
  --text:         #e4e6f0;
  --text-muted:   #5c6080;
  --text-dim:     #2e3245;

  /* Working Local brand colours */
  --focus-color:  #5b9bd5;        /* brand blue  #4f81ad brightened for dark bg */
  --focus-bg:     rgba(91, 155, 213, 0.08);
  --break-color:  #01ba7c;        /* brand green */
  --break-bg:     rgba(1, 186, 124, 0.08);
  --stop-color:   #f87171;
  --stop-bg:      rgba(248, 113, 113, 0.08);
  --gold:         #fed308;        /* brand yellow */

  --radius:       14px;
  --radius-sm:    8px;

  --header-h:     68px;
  --block-bar-h:  50px;
  --footer-h:     36px;
}

html, body {
  height: 100%;
  overflow: hidden;
  background: var(--bg);
  color: var(--text);
  font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
  -webkit-tap-highlight-color: transparent;
  user-select: none;
}

/* ─── Header ─────────────────────────────────────────────────────────────── */
.header {
  height: var(--header-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  gap: 16px;
  flex-shrink: 0;
}

.header-left {
  flex: 1;
  display: flex;
  align-items: center;
  gap: 14px;
}

.header-right {
  flex: 1;
  text-align: right;
}

.header-logo {
  height: 44px;
  width: auto;
  display: block;
  flex-shrink: 0;
}

.header-logo-fallback {
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--focus-color);
  flex-shrink: 0;
}

.header-datetime {
  display: flex;
  flex-direction: column;
  gap: 1px;
}

.header-date {
  font-size: 0.82rem;
  color: var(--text-muted);
  letter-spacing: 0.02em;
}

.header-time {
  font-size: 1.15rem;
  font-weight: 300;
  color: var(--text);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.04em;
}

.header-join-label {
  font-size: 0.7rem;
  color: var(--text-dim);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 2px;
}

.header-join-url {
  font-size: 0.95rem;
  color: var(--focus-color);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.03em;
}

/* ─── Block bar ───────────────────────────────────────────────────────────── */
.block-bar {
  height: var(--block-bar-h);
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.block-bar-display {
  font-size: 1.7rem;
  font-weight: 700;
  color: var(--gold);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* ─── Main layout ─────────────────────────────────────────────────────────── */
.main {
  display: flex;
  height: calc(100vh - var(--header-h) - var(--block-bar-h) - var(--footer-h));
  overflow: hidden;
}

/* ─── Timer Section ───────────────────────────────────────────────────────── */
.timer-section {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 20px;
  padding: 32px 24px;
}

.phase-label {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.4em;
  color: var(--text-dim);
  min-height: 18px;
  transition: color 0.4s;
}

.phase-label.focus { color: var(--focus-color); }
.phase-label.break { color: var(--break-color); }

/* ─── Progress Ring ───────────────────────────────────────────────────────── */
.timer-ring-container {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  width: clamp(280px, 38vw, 540px);
  height: clamp(280px, 38vw, 540px);
}

.progress-ring {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
}

.ring-bg {
  fill: none;
  stroke: rgba(255, 255, 255, 0.06);
  stroke-width: 25;
}

.ring-track {
  fill: none;
  stroke-width: 25;
  stroke-linecap: round;
  stroke-dasharray: 1162.39;
  stroke-dashoffset: 0;
  transition: stroke-dashoffset 1s linear, stroke 0.4s;
}

.ring-track.focus { stroke: var(--focus-color); opacity: 0.75; }
.ring-track.break { stroke: var(--break-color); opacity: 0.75; }
.ring-track.idle  { stroke: rgba(255, 255, 255, 0.14); opacity: 1; }

.ring-tick {
  stroke: rgba(255, 255, 255, 0.2);
  stroke-width: 2;
  stroke-linecap: round;
}

.timer-display {
  position: relative;
  z-index: 1;
  font-size: clamp(4rem, 12vw, 9rem);
  font-weight: 200;
  letter-spacing: -0.04em;
  color: var(--text-dim);
  font-variant-numeric: tabular-nums;
  line-height: 1;
  transition: color 0.4s;
}

.timer-display.focus { color: var(--focus-color); }
.timer-display.break { color: var(--break-color); }
.timer-display.end   { color: var(--stop-color); }

.timer-hint {
  font-size: 0.8rem;
  color: var(--text-dim);
  letter-spacing: 0.05em;
  min-height: 16px;
}

/* ─── Controls ────────────────────────────────────────────────────────────── */
.controls {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 8px;
}

.btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 14px 26px;
  font-size: 1rem;
  font-weight: 600;
  border: 1px solid transparent;
  border-radius: var(--radius);
  cursor: pointer;
  touch-action: manipulation;
  transition: transform 0.1s, opacity 0.2s, background 0.2s;
  min-width: 150px;
  justify-content: center;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  -webkit-tap-highlight-color: transparent;
}

.btn:active:not(:disabled) { transform: scale(0.95); }
.btn:disabled { opacity: 0.3; cursor: not-allowed; }

.btn-icon { font-size: 1.1em; }

.btn-focus {
  background: var(--focus-bg);
  color: var(--focus-color);
  border-color: rgba(74, 158, 255, 0.25);
}
.btn-focus:hover:not(:disabled) { background: rgba(74, 158, 255, 0.15); }

.btn-break {
  background: var(--break-bg);
  color: var(--break-color);
  border-color: rgba(74, 222, 128, 0.25);
}
.btn-break:hover:not(:disabled) { background: rgba(74, 222, 128, 0.15); }

.btn-stop {
  background: var(--stop-bg);
  color: var(--stop-color);
  border-color: rgba(248, 113, 113, 0.25);
}
.btn-stop:hover:not(:disabled) { background: rgba(248, 113, 113, 0.15); }

.btn-pause {
  background: rgba(251, 146, 60, 0.08);
  color: #fb923c;
  border-color: rgba(251, 146, 60, 0.25);
}
.btn-pause:hover:not(:disabled) { background: rgba(251, 146, 60, 0.15); }

.btn-next {
  background: rgba(200, 169, 74, 0.08);
  color: var(--gold);
  border-color: rgba(200, 169, 74, 0.2);
}
.btn-next:hover:not(:disabled) { background: rgba(200, 169, 74, 0.15); }

.btn-reset {
  background: var(--surface-2);
  color: var(--text-muted);
  border-color: var(--border);
}
.btn-reset:hover:not(:disabled) { background: rgba(255,255,255,0.05); }

/* ─── Participants Section ────────────────────────────────────────────────── */
.participants-section {
  width: 320px;
  flex-shrink: 0;
  border-left: 1px solid var(--border);
  background: var(--surface);
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.participants-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 20px 12px;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.participants-title {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.25em;
  color: var(--text-muted);
}

.participants-count {
  background: var(--surface-2);
  color: var(--text-muted);
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: 99px;
  padding: 2px 9px;
  min-width: 24px;
  text-align: center;
}

.participants-list {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
  scrollbar-width: thin;
  scrollbar-color: var(--surface-2) transparent;
}

/* Participant card */
.participant-card {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 14px;
  margin-bottom: 10px;
  transition: border-color 0.3s;
}

.participant-card.active-block {
  border-color: rgba(200, 169, 74, 0.3);
}

.participant-card.done {
  opacity: 0.45;
}

.participant-name {
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--gold);
  margin-bottom: 6px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.participant-task {
  font-size: 0.85rem;
  color: var(--text);
  line-height: 1.45;
  margin-bottom: 8px;
}

.participant-meta {
  font-size: 0.7rem;
  color: var(--text-dim);
  display: flex;
  gap: 8px;
}

/* Empty state */
.empty-state {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 60px 20px;
  text-align: center;
}

.empty-icon {
  font-size: 2rem;
  color: var(--text-dim);
  margin-bottom: 12px;
}

.empty-text {
  font-size: 0.9rem;
  color: var(--text-muted);
  margin-bottom: 4px;
}

.empty-sub {
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ─── Status bar ──────────────────────────────────────────────────────────── */
.status-bar {
  height: var(--footer-h);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 20px;
  background: var(--surface);
  border-top: 1px solid var(--border);
  flex-shrink: 0;
  font-size: 0.72rem;
  color: var(--text-dim);
}

.status-connection {
  display: flex;
  align-items: center;
  gap: 6px;
}

.status-connection::before {
  content: '●';
  font-size: 0.6rem;
}

.status-connection.connected { color: var(--break-color); }
.status-connection.connected::before { color: var(--break-color); }
.status-connection.disconnected { color: var(--stop-color); }
.status-connection.disconnected::before { color: var(--stop-color); }

/* ─── Language toggle ─────────────────────────────────────────────────────── */
.lang-toggle {
  display: flex;
  gap: 2px;
  background: var(--surface-2);
  border-radius: 6px;
  padding: 2px;
}

.lang-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  padding: 3px 8px;
  border-radius: 4px;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: background 0.15s, color 0.15s;
}

.lang-btn.active {
  background: var(--focus-color);
  color: #fff;
}

/* ─── Modal ───────────────────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.75);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 100;
  backdrop-filter: blur(4px);
}

.modal {
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 36px 40px;
  max-width: 420px;
  width: 90%;
  text-align: center;
}

.modal h2 {
  font-size: 1.3rem;
  margin-bottom: 12px;
  color: var(--stop-color);
}

.modal p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 28px;
}

.modal-actions {
  display: flex;
  gap: 12px;
  justify-content: center;
}

.btn-reset-confirm {
  background: var(--stop-bg);
  color: var(--stop-color);
  border: 1px solid rgba(248, 113, 113, 0.3);
  border-radius: var(--radius);
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  touch-action: manipulation;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.btn-cancel {
  background: var(--surface);
  color: var(--text-muted);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 28px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  touch-action: manipulation;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}