/* Countdown Timer Tool Styles */

:root {
    --primary-color: #8b5cf6;
    --secondary-color: #06b6d4;
    --accent-color: #f59e0b;
    --success-color: #10b981;
    --error-color: #ef4444;
    --warning-color: #f59e0b;
    --background-color: #f8fafc;
    --surface-color: #ffffff;
    --text-primary: #1e293b;
    --text-secondary: #64748b;
    --text-muted: #94a3b8;
    --border-color: #e2e8f0;
    --shadow-light: 0 1px 3px 0 rgb(0 0 0 / 0.1);
    --shadow-medium: 0 4px 6px -1px rgb(0 0 0 / 0.1);
    --shadow-heavy: 0 20px 25px -5px rgb(0 0 0 / 0.1);
    --border-radius: 16px;
    --transition: all 0.3s ease;
}

[data-theme="dark"] {
    --background-color: #0f172a;
    --surface-color: #1e293b;
    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --border-color: #334155;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background-color: var(--background-color);
    color: var(--text-primary);
    line-height: 1.6;
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 3rem;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 1rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header .icon {
    font-size: 3.5rem;
}

header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
}

/* Presets Section */
.presets-section {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
}

.presets-section h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.presets-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.preset-btn {
    background: var(--background-color);
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 1.5rem;
    cursor: pointer;
    transition: var(--transition);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.preset-btn:hover {
    border-color: var(--primary-color);
    background: linear-gradient(135deg, rgba(139, 92, 246, 0.05), rgba(6, 182, 212, 0.05));
    transform: translateY(-2px);
    box-shadow: var(--shadow-medium);
}

.preset-icon {
    font-size: 2.5rem;
}

.preset-label {
    font-weight: 600;
    color: var(--text-primary);
    font-size: 1rem;
}

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

/* Timer Setup */
.timer-setup {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
}

.timer-setup h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    color: var(--text-primary);
}

/* Time Inputs */
.time-inputs {
    display: flex;
    justify-content: center;
    align-items: end;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.time-input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.time-input-group label {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.time-input-group input {
    width: 80px;
    height: 60px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    background: var(--background-color);
    color: var(--text-primary);
    font-size: 1.5rem;
    font-weight: 700;
    text-align: center;
    transition: var(--transition);
}

.time-input-group input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(139 92 246 / 0.1);
}

.time-separator {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-muted);
    margin: 0 0.5rem;
}

/* Timer Name Input */
.timer-name-input {
    margin-bottom: 2rem;
}

.timer-name-input label {
    display: block;
    margin-bottom: 0.75rem;
    font-weight: 600;
    color: var(--text-primary);
}

.timer-name-input input {
    width: 100%;
    padding: 0.875rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--background-color);
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
}

.timer-name-input input:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(139 92 246 / 0.1);
}

/* Timer Options */
.timer-options {
    display: grid;
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.option-group {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

.option-group label {
    font-weight: 600;
    color: var(--text-primary);
    min-width: 120px;
}

.option-group select {
    padding: 0.75rem;
    border: 2px solid var(--border-color);
    border-radius: var(--border-radius);
    background: var(--background-color);
    color: var(--text-primary);
    cursor: pointer;
    transition: var(--transition);
    flex: 1;
    max-width: 200px;
}

.option-group select:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgb(139 92 246 / 0.1);
}

.test-sound-btn {
    padding: 0.5rem 1rem;
    background: var(--secondary-color);
    color: white;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.test-sound-btn:hover {
    background: #0891b2;
}

.checkbox-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    cursor: pointer;
    font-weight: 500;
}

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

/* Start Timer Button */
.start-timer-btn {
    width: 100%;
    padding: 1rem 2rem;
    background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-size: 1.2rem;
    font-weight: 700;
    cursor: pointer;
    transition: var(--transition);
}

.start-timer-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-heavy);
}

.start-timer-btn:active {
    transform: translateY(0);
}

/* Timer Display */
.timer-display {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 3rem 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-medium);
    border: 2px solid var(--primary-color);
    text-align: center;
}

.timer-info {
    margin-bottom: 2rem;
}

.timer-name-display {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--primary-color);
    margin-bottom: 2rem;
}

/* Progress Ring */
.timer-progress {
    position: relative;
    display: inline-block;
    margin-bottom: 2rem;
}

.progress-ring {
    transform: rotate(-90deg);
}

.progress-ring-bg {
    fill: none;
    stroke: var(--border-color);
    stroke-width: 8;
}

.progress-ring-fill {
    fill: none;
    stroke: url(#gradient);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-dasharray: 565.48;
    stroke-dashoffset: 565.48;
    transition: stroke-dashoffset 0.5s ease;
}

.timer-time {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--primary-color);
    font-family: 'Courier New', monospace;
}

/* Timer Controls */
.timer-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
    flex-wrap: wrap;
}

.control-btn {
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-width: 100px;
}

.pause-btn {
    background: var(--accent-color);
    color: white;
}

.pause-btn:hover {
    background: #d97706;
}

.reset-btn {
    background: var(--error-color);
    color: white;
}

.reset-btn:hover {
    background: #dc2626;
}

.add-btn {
    background: var(--success-color);
    color: white;
}

.add-btn:hover {
    background: #059669;
}

/* Timer Status */
.timer-status {
    color: var(--text-secondary);
    font-style: italic;
    animation: pulse 2s infinite;
}

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

/* Multiple Timers */
.multiple-timers-section {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
}

.multiple-timers-section h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.timers-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(250px, 1fr));
    gap: 1rem;
}

.mini-timer {
    background: var(--background-color);
    border-radius: 12px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    text-align: center;
}

.mini-timer-name {
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
}

.mini-timer-time {
    font-size: 1.2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.mini-timer-controls {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
}

.mini-control-btn {
    padding: 0.25rem 0.5rem;
    border: none;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

/* History Section */
.history-section {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    margin-bottom: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
}

.history-section h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.history-list {
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 1rem;
}

.history-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem;
    background: var(--background-color);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    border: 1px solid var(--border-color);
}

.history-info {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.history-name {
    font-weight: 600;
    color: var(--text-primary);
}

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

.history-actions {
    display: flex;
    gap: 0.5rem;
}

.history-btn {
    padding: 0.25rem 0.75rem;
    border: none;
    border-radius: 6px;
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--transition);
}

.use-again-btn {
    background: var(--primary-color);
    color: white;
}

.use-again-btn:hover {
    background: #7c3aed;
}

.clear-history-btn {
    display: block;
    margin: 0 auto;
    padding: 0.5rem 1.5rem;
    background: var(--error-color);
    color: white;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}

.clear-history-btn:hover {
    background: #dc2626;
}

/* Fullscreen Modal */
.fullscreen-modal {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    animation: modalFadeIn 0.3s ease;
}

@keyframes modalFadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.modal-content {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 3rem;
    text-align: center;
    max-width: 500px;
    margin: 2rem;
    box-shadow: var(--shadow-heavy);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-50px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-icon {
    font-size: 4rem;
    margin-bottom: 1rem;
}

.modal-title {
    font-size: 2rem;
    font-weight: 700;
    color: var(--primary-color);
    margin-bottom: 1rem;
}

.modal-timer-name {
    font-size: 1.2rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
}

.modal-btn {
    padding: 0.875rem 2rem;
    border: none;
    border-radius: var(--border-radius);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    min-width: 120px;
}

.modal-btn.primary {
    background: var(--primary-color);
    color: white;
}

.modal-btn.primary:hover {
    background: #7c3aed;
}

.modal-btn.secondary {
    background: var(--surface-color);
    color: var(--text-primary);
    border: 2px solid var(--border-color);
}

.modal-btn.secondary:hover {
    border-color: var(--primary-color);
    color: var(--primary-color);
}

/* Tips Section */
.tips-section {
    background: var(--surface-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    box-shadow: var(--shadow-light);
    border: 1px solid var(--border-color);
}

.tips-section h3 {
    text-align: center;
    margin-bottom: 2rem;
    font-size: 1.5rem;
    color: var(--text-primary);
}

.tips-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
}

.tip-item {
    display: flex;
    gap: 1rem;
    align-items: flex-start;
}

.tip-icon {
    font-size: 2rem;
    flex-shrink: 0;
}

.tip-content h4 {
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    font-size: 1rem;
}

.tip-content p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 15px;
    }

    header h1 {
        font-size: 2.5rem;
        flex-direction: column;
        gap: 0.5rem;
    }

    .presets-grid {
        grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    }

    .time-inputs {
        flex-direction: column;
        align-items: center;
        gap: 0.5rem;
    }

    .time-separator {
        display: none;
    }

    .timer-time {
        font-size: 2rem;
    }

    .timer-controls {
        flex-direction: column;
        align-items: center;
    }

    .control-btn {
        width: 100%;
        max-width: 200px;
    }

    .modal-content {
        margin: 1rem;
        padding: 2rem;
    }

    .modal-buttons {
        flex-direction: column;
    }

    .tips-grid {
        grid-template-columns: 1fr;
    }

    .tip-item {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 480px) {
    header h1 {
        font-size: 2rem;
    }

    .timer-display {
        padding: 2rem 1rem;
    }

    .timer-time {
        font-size: 1.8rem;
    }

    .presets-grid {
        grid-template-columns: 1fr;
    }

    .preset-btn {
        padding: 1rem;
    }
}

/* Progress Ring Gradient */
.timer-display svg defs,
.timer-display svg linearGradient {
    display: none;
}

.timer-display::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
}

/* Add gradient definition via JavaScript */