/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --accent-primary: #8b5cf6;
    --accent-secondary: #6366f1;
    --accent-success: #10b981;
    --accent-warning: #f59e0b;
    --border-color: #27272a;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, sans-serif;
    background: linear-gradient(135deg, var(--bg-primary) 0%, var(--bg-secondary) 100%);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
}

.container {
    max-width: 560px;
    width: 100%;
    background: var(--bg-tertiary);
    border-radius: 16px;
    padding: 24px 24px 16px; /* reduce overall, smaller bottom */
    box-shadow: 0 16px 50px var(--shadow-color);
    border: 1px solid var(--border-color);
}

header {
    text-align: center;
    margin-bottom: 28px;
}

h1 {
    font-size: 2.1rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-secondary);
    font-size: 0.95rem;
}

/* Timer Circle */
.timer-container {
    position: relative;
    width: 260px;
    height: 260px;
    margin: 0 auto 40px; /* bigger gap to controls */
}

.timer-circle {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.timer-bg {
    fill: none;
    stroke: var(--bg-secondary);
    stroke-width: 10;
}

.timer-progress {
    fill: none;
    stroke: url(#gradient);
    stroke-width: 10;
    stroke-linecap: round;
    stroke-dasharray: 565.48;
    stroke-dashoffset: 0;
    transition: stroke-dashoffset 1s linear;
}

/* Add gradient definition */
.timer-circle::before {
    content: '';
}

.timer-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
}

.time-display {
    font-size: 3rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    margin-bottom: 12px;
}

.activity-label {
    font-size: 1.1rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

/* Controls */
.controls {
    display: flex;
    gap: 12px;
    margin-bottom: 12px; /* less bottom padding feel */
    flex-wrap: wrap;
}

.btn {
    flex: 1 1 0;
    padding: 12px 20px;
    border: none;
    border-radius: 12px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 1px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent-primary), var(--accent-secondary));
    color: white;
}

.btn-primary:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(139, 92, 246, 0.4);
}

.btn-secondary {
    background: var(--bg-secondary);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
}

.btn-secondary:hover:not(:disabled) {
    background: var(--bg-primary);
}

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

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-primary);
    color: var(--accent-primary);
    padding: 12px 24px;
}

.btn-outline:hover {
    background: var(--accent-primary);
    color: white;
}

/* Icons */
.icon {
    width: 18px;
    height: 18px;
    stroke: currentColor;
    fill: none;
    stroke-width: 2px;
    flex: 0 0 auto;
}

/* Settings */
.settings-panel {
    background: var(--bg-secondary);
    padding: 16px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.settings-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.settings-panel h2 {
    font-size: 1.1rem;
    color: var(--text-primary);
}

.setting-group {
    margin-bottom: 20px;
}

.setting-group:last-child {
    margin-bottom: 0;
}

.setting-group label {
    display: block;
    color: var(--text-secondary);
    margin-bottom: 8px;
    font-size: 0.9rem;
    font-weight: 500;
}

.input-group {
    display: flex;
    align-items: center;
    gap: 8px;
}

input[type="number"] {
    flex: 1;
    padding: 12px 16px;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: border-color 0.3s ease;
}

input[type="number"]:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.input-suffix {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 8px;
    cursor: pointer;
    accent-color: var(--accent-primary);
}

.setting-group label:has(input[type="checkbox"]) {
    display: flex;
    align-items: center;
    cursor: pointer;
}

.status-text {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.status-text.success {
    color: var(--accent-success);
}

.status-text.warning {
    color: var(--accent-warning);
}

/* Footer */
footer {
    text-align: center;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid var(--border-color);
}

footer p {
    color: var(--text-secondary);
    font-size: 0.85rem;
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.7;
    }
}

.timer-progress.pulsing {
    animation: pulse 1s ease-in-out infinite;
}

/* Responsive */
@media (max-width: 640px) {
    .container {
        padding: 20px;
    }

    h1 {
        font-size: 1.8rem;
    }

    .timer-container {
        width: 220px;
        height: 220px;
    }

    .time-display {
        font-size: 2.2rem;
    }

    .activity-label {
        font-size: 0.95rem;
    }

    .controls {
        flex-direction: column;
    }
}

/* Views */
.view { display: none; }
.view.view--active { display: block; }

/* Header toolbar */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

h1 { display: inline-block; }

.header-actions {
    display: inline-flex;
    gap: 8px;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 10px;
    padding: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
}
.icon-btn:hover { background: var(--bg-primary); }
.icon-btn:active { transform: scale(0.98); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Header toolbar */
.header {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

h1 { display: inline-block; }

.header-actions {
    display: inline-flex;
    gap: 8px;
}

.icon-btn {
    background: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: 10px;
    padding: 8px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease, transform 0.1s ease;
}
.icon-btn:hover { background: var(--bg-secondary); }
.icon-btn:active { transform: scale(0.98); }

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Settings popover */
.settings-popover {
    background: var(--bg-secondary);
    padding: 16px;
    border-radius: 12px;
    border: 1px solid var(--border-color);
    box-shadow: 0 16px 50px var(--shadow-color);
    width: min(520px, 90vw);
}
.settings-popover h2 {
    font-size: 1.1rem;
    margin-bottom: 12px;
}

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

/* Ensure popover position is unobtrusive (UA may center by default) */
[popover] { inset: unset; }