:root {
  --bg: #0f1220;
  --card: #161a2b;
  --text: #e7e9f5;
  --muted: #8f9bb3;
  --accent: #6ea8ff;
  --ok: #49d17f;
  --warn: #ffc857;

  /* Table borders */
  --table-border: rgba(255, 255, 255, 0.12);
  --table-header: rgba(255, 255, 255, 0.08);
}

body {
  margin: 0;
  font-family: system-ui, -apple-system, Segoe UI, Roboto, Arial;
  background: var(--bg);
  color: var(--text);
  transition: all 0.3s ease;
}

body.day {
  --bg: #f0f2f5;
  --card: #ffffff;
  --text: #222222;
  --muted: #555555;
  --accent: #6ea8ff;
  --ok: #49d17f;
  --warn: #ffc857;
  --table-border: rgba(0, 0, 0, 0.15);
  --table-header: rgba(0, 0, 0, 0.1);
}
body.day #pause:hover {
  background: #ffb600;
}

body.day #pause {
  background: #e95744;
  color: #332400;
  border: none;
}

* {
  box-sizing: border-box;
}

header {
  padding: 20px;
  text-align: center;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  position: relative;
}

h1 {
  margin: 0 0 6px;
  font-size: clamp(22px, 3vw, 32px);
}

.sub {
  color: var(--muted);
  font-size: 14px;
}

.controls {
  position: absolute;
  top: 20px;
  right: 20px;
}

.controls button {
  cursor: pointer;
  border: none;
  border-radius: 8px;
  padding: 6px 12px;
  background: var(--accent);
  color: #081428;
  font-weight: bold;
  transition: 0.2s;
}

.controls button:hover {
  transform: translateY(-2px);
}

main {
  max-width: 980px;
  margin: 0 auto;
  padding: 22px;
}

.grid {
  display: grid;
  gap: 16px;
}

@media (min-width: 900px) {
  .grid {
    grid-template-columns: 1.1fr 0.9fr;
  }
}

.card {
  background: var(--card);
  color: var(--text);
  border-radius: 14px;
  padding: 18px;
  margin: 20px 0;
  box-shadow: 0 5px 15px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

h2 {
  margin: 0 0 12px;
  font-size: clamp(18px, 2.4vw, 22px);
}

.pill {
  display: inline-block;
  padding: 6px 10px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 999px;
  font-size: 12px;
  color: var(--muted);
  margin-right: 8px;
}

.tabs {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.tab {
  cursor: pointer;
  padding: 8px 12px;
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid transparent;
  transition: 0.15s;
  user-select: none;
}

.tab.active {
  background: var(--accent);
  color: #081428;
}

.tab-content {
  margin-top: 12px;
}

.tabpane[hidden] {
  display: none !important;
}

ol {
  margin: 8px 0 0 18px;
  padding: 0;
}

li {
  margin: 4px 0;
  line-height: 1.35;
}

.muted {
  color: var(--muted);
}

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 10px;
  font-size: 14px;
  border: 1px solid var(--table-border);
}

th,
td {
  border: 1px solid var(--table-border);
  padding: 8px;
  text-align: center;
}

th {
  background: var(--table-header);
}

.hint {
  font-size: 13px;
  color: var(--muted);
  margin-top: 8px;
}

/* Timer */

.timer {
  display: grid;
  gap: 14px;
}

.timer .screen {
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(
    1200px 600px at 50% -10%,
    rgba(110, 168, 255, 0.25),
    transparent 70%
  );
  border: 1px solid var(--table-border);
  border-radius: 16px;
  padding: 24px 16px;
  min-height: 160px;
}

.time {
  font-variant-numeric: tabular-nums;
  letter-spacing: 1px;
  font-size: clamp(36px, 8vw, 64px);
  font-weight: 700;
}

.phase {
  display: block;
  margin-top: 6px;
  font-size: 14px;
  color: var(--muted);
}

.row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin: 0 auto;
}

button {
  cursor: pointer;
  border: 1px solid var(--table-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
  padding: 10px 30px;
  border-radius: 10px;
  font-weight: 600;
  transition: 0.15s;
}

button:hover {
  transform: translateY(-1px);
}

button.primary {
  background: var(--ok);
  color: #082817;
  border: none;
}

button.warn {
  background: var(--warn);
  color: #332400;
  border: none;
}

.cfg {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 8px;
  margin-top: 6px;
}

.cfg label {
  display: block;
  font-size: 12px;
  color: var(--muted);
  margin-bottom: 4px;
}

.cfg input {
  width: 100%;
  padding: 8px 10px;
  border-radius: 10px;
  border: 1px solid var(--table-border);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

footer {
  padding: 20px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

.cfg input {
  width: 100%;
  padding: 8px 12px;
  border-radius: 12px;
  border: 1px solid rgba(0, 0, 0, 0.2);
  background: #fff;
  color: #222;
  font-weight: 500;
  transition: 0.2s;
}

.cfg input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 8px rgba(110, 168, 255, 0.3);
}