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

:root {
    --clock-page-bg: #111;
    --clock-text: #fff;
    --clock-idle-bg: #888;
    --clock-panel-bg: rgba(0, 0, 0, 0.88);
    --clock-panel-text: #fff;
    --clock-input-border: #555;
    --clock-input-bg: #222;
    --clock-input-text: #fff;
    --clock-controls-bg: #222;
    --clock-controls-text: #fff;
    --clock-controls-btn-bg: #444;
    --clock-controls-btn-hover-bg: #555;
    --clock-controls-btn-text: #fff;
    --clock-backdrop-bg: rgba(0, 0, 0, 0.55);
    --clock-modal-bg: #2a2a2a;
    --clock-modal-text: #fff;
    --clock-cancel-btn-bg: #444;
    --clock-cancel-btn-hover-bg: #555;
    --clock-cancel-btn-text: #fff;
}

[data-bs-theme="light"] {
    --clock-page-bg: var(--bs-body-bg);
    --clock-text: #000;
    --clock-idle-bg: var(--bs-body-bg);
    --clock-panel-bg: rgba(235, 219, 178, 0.96);
    --clock-panel-text: #3c3836;
    --clock-input-border: #d5c4a1;
    --clock-input-bg: #fbf1c7;
    --clock-input-text: #3c3836;
    --clock-controls-bg: #a89984;
    --clock-controls-text: #fbf1c7;
    --clock-controls-btn-bg: #7c6f64;
    --clock-controls-btn-hover-bg: #665c54;
    --clock-controls-btn-text: #fbf1c7;
    --clock-backdrop-bg: rgba(60, 56, 54, 0.3);
    --clock-modal-bg: #ebdbb2;
    --clock-modal-text: #3c3836;
    --clock-cancel-btn-bg: #d5c4a1;
    --clock-cancel-btn-hover-bg: #c6b28b;
    --clock-cancel-btn-text: #3c3836;
}

html, body {
    height: 100%;
    overflow: hidden;
    font-family: sans-serif;
    background: var(--clock-page-bg);
    color: var(--clock-text);
}

body {
    display: flex;
    flex-direction: column;
}

/* Player areas */
.player-area {
    flex: 1;
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    user-select: none;
    transition: background-color 0.2s;
}

/* Rotate inner content individually to avoid creating a stacking context on the area.
   A transform on the area itself would prevent the settings panel (z-index:10) from
   painting above the settings-backdrop (z-index:9). */
.player-area.top .time-display {
    transform: rotate(180deg);
}

.player-area.top .move-counter {
    bottom: auto;
    top: 12px;
    left: auto;
    right: 16px;
    transform: rotate(180deg);
}

.player-area.top .gear-btn {
    top: auto;
    bottom: 10px;
    left: 12px;
    right: auto;
    transform: rotate(180deg);
}

/* Color states */
.player-area.state-idle {
    background: var(--clock-idle-bg);
}

.player-area.state-active {
    background: #4caf50;
}

.player-area.state-active-low {
    background: #ff9800;
}

.player-area.state-dead {
    background: #f44336;
}

/* Time display */
.time-display {
    font-size: 80px;
    font-weight: bold;
    font-variant-numeric: tabular-nums;
    line-height: 1;
    white-space: nowrap;
}

/* Move counter */
.move-counter {
    position: absolute;
    bottom: 12px;
    left: 16px;
    font-size: 18px;
    opacity: 0.75;
}

/* Gear button */
.gear-btn {
    position: absolute;
    top: 10px;
    right: 12px;
    background: none;
    border: none;
    color: inherit;
    font-size: 28px;
    cursor: pointer;
    opacity: 0.7;
    line-height: 1;
    padding: 4px;
}

.gear-btn:hover {
    opacity: 1;
}

/* Settings panel */
.settings-panel {
    display: none;
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--clock-panel-bg);
    color: var(--clock-panel-text);
    border-radius: 10px;
    padding: 20px 24px;
    min-width: 220px;
    z-index: 10;
    flex-direction: column;
    gap: 12px;
}

.settings-panel.open {
    display: flex;
}

/* Settings panel for top area: rotate 180deg so it faces the top player */
.player-area.top .settings-panel {
    transform: translate(-50%, -50%) rotate(180deg);
}

.settings-panel h3 {
    margin-bottom: 4px;
    font-size: 16px;
}

.settings-panel label {
    display: flex;
    flex-direction: column;
    gap: 4px;
    font-size: 14px;
}

.settings-panel input[type="number"] {
    width: 100%;
    padding: 6px 8px;
    border-radius: 6px;
    border: 1px solid var(--clock-input-border);
    background: var(--clock-input-bg);
    color: var(--clock-input-text);
    font-size: 16px;
}

.apply-btn {
    margin-top: 4px;
    padding: 8px;
    border: none;
    border-radius: 6px;
    background: #4caf50;
    color: #fff;
    font-size: 15px;
    cursor: pointer;
    font-weight: bold;
}

.apply-btn:hover {
    background: #43a047;
}

/* Controls strip */
#controls {
    height: 64px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    padding: 0 12px;
    background: var(--clock-controls-bg);
    color: var(--clock-controls-text);
    z-index: 5;
    transition: filter 0.2s;
}

#controls-center {
    display: flex;
    align-items: center;
    gap: 10px;
}

#controls button,
#controls .clock-control-btn {
    height: 40px;
    padding: 0 14px;
    border: none;
    border-radius: 6px;
    background: var(--clock-controls-btn-bg);
    color: var(--clock-controls-btn-text);
    font-size: 15px;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    box-sizing: border-box;
}

#controls button:hover,
#controls .clock-control-btn:hover {
    background: var(--clock-controls-btn-hover-bg);
    color: var(--clock-controls-btn-text);
}

#controls .clock-control-btn:visited,
#controls .clock-control-btn:focus {
    color: var(--clock-controls-btn-text);
}

#btn-pause {
    font-size: 18px;
    min-width: 44px;
}

#btn-presets svg {
    width: 20px;
    height: 20px;
    display: block;
}

#btn-home svg {
    display: block;
}

.clock-theme-toggle-icons {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.1rem;
    height: 1.1rem;
}

.clock-theme-toggle-icon {
    width: 1.1rem;
    height: 1.1rem;
    display: none;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.9;
    stroke-linecap: round;
    stroke-linejoin: round;
}

/* Settings backdrop */
#settings-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--clock-backdrop-bg);
    backdrop-filter: blur(4px);
    z-index: 9;
}

#settings-backdrop.open {
    display: block;
}

/* Preset modal */
#preset-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--clock-backdrop-bg);
    backdrop-filter: blur(4px);
    z-index: 20;
}

#preset-backdrop.open {
    display: block;
}

#preset-modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--clock-modal-bg);
    color: var(--clock-modal-text);
    border-radius: 12px;
    padding: 24px;
    z-index: 21;
    min-width: 240px;
    flex-direction: column;
    gap: 12px;
}

#preset-modal.open {
    display: flex;
}

#preset-modal h3 {
    font-size: 16px;
    text-align: center;
    opacity: 0.8;
    margin-bottom: 4px;
}

#preset-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

#preset-list .preset-btn {
    padding: 12px;
    border: none;
    border-radius: 8px;
    background: var(--clock-controls-btn-bg);
    color: var(--clock-controls-btn-text);
    font-size: 17px;
    cursor: pointer;
    text-align: center;
}

#preset-list .preset-btn:hover {
    background: var(--clock-controls-btn-hover-bg);
}

/* Confirm modal */
#confirm-backdrop {
    display: none;
    position: fixed;
    inset: 0;
    background: var(--clock-backdrop-bg);
    backdrop-filter: blur(4px);
    z-index: 30;
}

#confirm-backdrop.open {
    display: block;
}

#confirm-modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: var(--clock-modal-bg);
    color: var(--clock-modal-text);
    border-radius: 12px;
    padding: 24px;
    z-index: 31;
    min-width: 260px;
    flex-direction: column;
    gap: 20px;
}

#confirm-modal.open {
    display: flex;
}

#confirm-message {
    font-size: 16px;
    text-align: center;
    line-height: 1.4;
}

#confirm-actions {
    display: flex;
    gap: 10px;
}

#confirm-actions button {
    flex: 1;
    padding: 10px;
    border: none;
    border-radius: 8px;
    font-size: 15px;
    cursor: pointer;
    font-weight: bold;
}

#confirm-cancel {
    background: var(--clock-cancel-btn-bg);
    color: var(--clock-cancel-btn-text);
}

#confirm-cancel:hover {
    background: var(--clock-cancel-btn-hover-bg);
}

#confirm-ok {
    background: #f44336;
    color: #fff;
}

#confirm-ok:hover {
    background: #e53935;
}