:root {
  --background: #061015;
  --digits: #f6fbff;
  --accent: #35e7b4;
  --muted: color-mix(in srgb, var(--digits), transparent 34%);
  --panel: color-mix(in srgb, var(--background), var(--digits) 8%);
  --panel-border: color-mix(in srgb, var(--digits), transparent 82%);
  --clock-size: clamp(4.5rem, 13vw, 11.875rem);
  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background:
    linear-gradient(135deg, color-mix(in srgb, var(--background), var(--accent) 10%), var(--background) 48%),
    var(--background);
  color: var(--digits);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button,
input,
select {
  font: inherit;
}

.clock-shell {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(15rem, 19rem);
  min-height: 100vh;
}

.clock-stage {
  align-content: start;
  display: grid;
  gap: 1rem;
  justify-items: center;
  min-height: 0;
  min-width: 0;
  overflow: hidden;
  padding: clamp(0.5rem, 1.4vw, 1.25rem) clamp(1.25rem, 4vw, 4rem) clamp(1.25rem, 4vw, 4rem);
}

.status-row {
  align-items: center;
  color: var(--muted);
  display: flex;
  font-size: clamp(0.75rem, 1.8vw, 0.95rem);
  font-weight: 700;
  gap: 0.55rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.sync-dot {
  background: #f4ba42;
  border-radius: 999px;
  box-shadow: 0 0 1.25rem currentColor;
  color: #f4ba42;
  height: 0.65rem;
  width: 0.65rem;
}

.sync-dot.synced {
  background: var(--accent);
  color: var(--accent);
}

.sync-dot.error {
  background: #ff5c7a;
  color: #ff5c7a;
}

.clock {
  color: var(--digits);
  filter: drop-shadow(0 1.5rem 3rem color-mix(in srgb, var(--accent), transparent 80%));
  font-family: "SF Pro Display", "Segoe UI Variable Display", "Aptos Display", Inter, ui-sans-serif, system-ui, sans-serif;
  font-size: var(--clock-fit-size, var(--clock-size));
  font-variant-numeric: tabular-nums;
  font-weight: 800;
  line-height: 0.92;
  max-width: 100%;
  text-align: center;
  white-space: nowrap;
}

.date {
  color: var(--muted);
  font-size: clamp(1.45rem, 3vw, 2.65rem);
  font-variant-numeric: tabular-nums;
  font-weight: 650;
}

.period-meter {
  display: grid;
  gap: 0.55rem;
  max-width: min(34rem, 82vw);
  width: 100%;
}

.period-bar {
  background: color-mix(in srgb, var(--digits), transparent 90%);
  border: 1px solid color-mix(in srgb, var(--digits), transparent 84%);
  border-radius: 0.45rem;
  height: 0.85rem;
  overflow: hidden;
}

.period-fill {
  background: linear-gradient(90deg, var(--accent), color-mix(in srgb, var(--accent), var(--digits) 34%));
  box-shadow: 0 0 1.15rem color-mix(in srgb, var(--accent), transparent 42%);
  height: 100%;
  transition: width 120ms linear;
  width: 0%;
}

#periodStatus {
  color: var(--muted);
  font-size: clamp(0.8rem, 1.6vw, 0.95rem);
  font-variant-numeric: tabular-nums;
  font-weight: 750;
  letter-spacing: 0.06em;
  text-align: center;
  text-transform: uppercase;
}

.style-panel {
  align-self: stretch;
  background: var(--panel);
  border-left: 1px solid var(--panel-border);
  display: grid;
  gap: 1.1rem;
  grid-auto-rows: max-content;
  padding: 1.25rem;
}

.panel-header,
label,
.toggle-row {
  align-items: center;
  display: flex;
  justify-content: space-between;
  gap: 1rem;
}

.panel-header {
  margin-bottom: 0.25rem;
}

h1 {
  font-size: 1rem;
  line-height: 1;
  margin: 0;
}

label span {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 700;
}

.panel-divider {
  border-top: 1px solid var(--panel-border);
  margin: 0.15rem 0;
}

input[type="color"] {
  appearance: none;
  background: transparent;
  border: 1px solid var(--panel-border);
  border-radius: 0.5rem;
  cursor: pointer;
  height: 2.25rem;
  padding: 0.2rem;
  width: 4rem;
}

input[type="color"]::-webkit-color-swatch-wrapper {
  padding: 0;
}

input[type="color"]::-webkit-color-swatch {
  border: 0;
  border-radius: 0.3rem;
}

input[type="range"] {
  accent-color: var(--accent);
  max-width: 8rem;
  width: 45%;
}

input[type="checkbox"],
input[type="number"],
select {
  accent-color: var(--accent);
}

input:disabled,
select:disabled,
button:disabled {
  cursor: not-allowed;
  opacity: 0.48;
}

input[type="checkbox"] {
  height: 1.2rem;
  width: 1.2rem;
}

input[type="number"],
select {
  background: color-mix(in srgb, var(--digits), transparent 94%);
  border: 1px solid var(--panel-border);
  border-radius: 0.5rem;
  color: var(--digits);
  min-height: 2.25rem;
}

input[type="number"] {
  padding: 0 0.35rem 0 0.65rem;
  width: 4.4rem;
}

select {
  cursor: pointer;
  max-width: 9.5rem;
  padding: 0 0.55rem;
  width: 50%;
}

.number-field {
  align-items: center;
  display: inline-flex;
  gap: 0.45rem;
}

.number-field span,
.range-field span {
  color: var(--muted);
  font-size: 0.8rem;
  font-weight: 700;
}

.range-field {
  align-items: center;
  display: inline-flex;
  gap: 0.65rem;
  justify-content: flex-end;
  min-width: 0;
  width: 62%;
}

.range-field input[type="range"] {
  max-width: 7rem;
  min-width: 4.5rem;
  width: 100%;
}

#volumeValue {
  font-variant-numeric: tabular-nums;
  min-width: 2.4rem;
  text-align: right;
}

.file-row {
  align-items: flex-start;
}

.file-row[hidden] {
  display: none;
}

input[type="file"] {
  color: var(--muted);
  font-size: 0.78rem;
  max-width: 10rem;
}

input[type="file"]::file-selector-button {
  background: color-mix(in srgb, var(--digits), transparent 92%);
  border: 1px solid var(--panel-border);
  border-radius: 0.5rem;
  color: var(--digits);
  cursor: pointer;
  font: inherit;
  font-size: 0.8rem;
  margin-right: 0.5rem;
  min-height: 2rem;
  padding: 0 0.6rem;
}

.icon-button {
  align-items: center;
  background: color-mix(in srgb, var(--digits), transparent 92%);
  border: 1px solid var(--panel-border);
  border-radius: 0.5rem;
  color: var(--digits);
  cursor: pointer;
  display: inline-flex;
  height: 2.25rem;
  justify-content: center;
  width: 2.25rem;
}

.icon-button:hover {
  background: color-mix(in srgb, var(--accent), transparent 82%);
}

.text-button {
  background: color-mix(in srgb, var(--digits), transparent 92%);
  border: 1px solid var(--panel-border);
  border-radius: 0.5rem;
  color: var(--digits);
  cursor: pointer;
  min-height: 2.25rem;
  padding: 0 0.7rem;
}

.text-button:not(:disabled):hover,
input[type="file"]:not(:disabled)::file-selector-button:hover {
  background: color-mix(in srgb, var(--accent), transparent 82%);
}

.sound-actions {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
}

#soundStatus {
  color: var(--muted);
  font-size: 0.78rem;
  font-weight: 700;
  min-width: 0;
  overflow: hidden;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 820px) {
  .clock-shell {
    grid-template-columns: 1fr;
    grid-template-rows: minmax(62vh, 1fr) auto;
  }

  .style-panel {
    border-left: 0;
    border-top: 1px solid var(--panel-border);
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .panel-header {
    grid-column: 1 / -1;
  }
}

@media (max-width: 520px) {
  .clock {
    font-size: min(var(--clock-size), 21vw);
  }

  .style-panel {
    grid-template-columns: 1fr;
  }
}