/**
 * Countdown Timer Styles
 */

/* ========================================
   App Page Layout
   ======================================== */

.app-page {
    padding: var(--space-4);
    padding-top: calc(var(--header-height) + var(--space-4));
    min-height: calc(100vh - var(--header-height));
    display: flex;
    flex-direction: column;
    align-items: center;
}

.app-container {
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
}

.app-header {
    text-align: center;
    margin-bottom: var(--space-6);
}

.app-header h1 {
    font-size: var(--font-size-2xl);
    margin-bottom: var(--space-2);
}

.app-description {
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    margin-bottom: 0;
}

/* ========================================
   Timer Component
   ======================================== */

.timer-container {
    max-width: 600px;
    margin: 0 auto;
    padding: var(--space-6);
    text-align: center;
}

/* Timer Display and Progress Ring */
.timer-display-wrapper {
    position: relative;
    width: 300px;
    height: 300px;
    margin: 0 auto var(--space-8);
}

.timer-progress-ring {
    width: 100%;
    height: 100%;
}

.timer-progress-bar {
    transition: stroke-dashoffset 0.3s ease-in-out, stroke 0.3s ease-in-out;
}

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

.timer-time {
    font-family: 'Courier New', Courier, monospace;
    font-size: 3rem;
    font-weight: 700;
    color: var(--color-text);
    line-height: 1;
    margin-bottom: var(--space-2);
}

.timer-percent {
    font-size: 1rem;
    color: var(--color-text-muted);
    font-weight: 500;
}

/* Time Input Controls */
.timer-inputs {
    display: flex;
    justify-content: center;
    gap: var(--space-4);
    margin-bottom: var(--space-8);
}

.timer-input-group {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-1);
}

.timer-input-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--color-text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.timer-input-group input {
    width: 70px;
    padding: var(--space-2);
    font-size: 1.5rem;
    font-family: 'Courier New', Courier, monospace;
    text-align: center;
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    background: var(--color-bg-alt);
    color: var(--color-text);
    transition: border-color 0.2s ease;
}

.timer-input-group input:focus {
    outline: none;
    border-color: var(--color-primary);
}

.timer-input-group input:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

/* Preset Buttons */
.timer-presets {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-8);
}

.timer-preset-btn {
    padding: var(--space-3) var(--space-4);
    font-size: 0.875rem;
    font-weight: 500;
    background: var(--color-bg-alt);
    color: var(--color-text);
    border: 2px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all 0.2s ease;
    min-width: 100px;
    min-height: 44px; /* WCAG 2.5.5 touch target size */
}

.timer-preset-btn:hover:not(:disabled) {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
    transform: translateY(-2px);
}

.timer-preset-btn:active:not(:disabled) {
    transform: translateY(0);
}

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

.timer-preset-btn:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* Control Buttons */
.timer-controls {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-3);
    margin-bottom: var(--space-6);
}

.timer-controls .btn {
    min-width: 120px;
    min-height: 44px; /* WCAG 2.5.5 touch target size */
    padding: var(--space-3) var(--space-5);
    font-size: 1rem;
    font-weight: 600;
}

/* Options */
.timer-options {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: var(--space-6);
    margin-top: var(--space-8);
}

.timer-checkbox {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    cursor: pointer;
    font-size: 0.938rem;
    color: var(--color-text-muted);
    min-height: 44px; /* WCAG 2.5.5 touch target size */
    padding: var(--space-2) var(--space-3);
}

.timer-checkbox input[type="checkbox"] {
    width: 24px;
    height: 24px;
    cursor: pointer;
    accent-color: var(--color-primary);
}

.timer-checkbox:hover {
    color: var(--color-text);
}

/* Fullscreen Mode */
.timer-container.fullscreen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(0, 0, 0, 0.95);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--space-8);
}

.timer-container.fullscreen .timer-display-wrapper {
    width: 400px;
    height: 400px;
    margin-bottom: var(--space-8);
}

.timer-container.fullscreen .timer-time {
    font-size: 6rem;
}

.timer-container.fullscreen .timer-percent {
    font-size: 1.5rem;
}

.timer-container.fullscreen .timer-inputs,
.timer-container.fullscreen .timer-presets {
    display: none;
}

.timer-container.fullscreen .timer-controls {
    margin-top: var(--space-8);
}

/* Responsive Design */
@media (max-width: 768px) {
    .timer-display-wrapper {
        width: 200px;
        height: 200px;
    }

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

    .timer-percent {
        font-size: 0.875rem;
    }

    .timer-inputs {
        gap: var(--space-2);
    }

    .timer-input-group input {
        width: 60px;
        font-size: 1.25rem;
    }

    .timer-presets {
        gap: var(--space-2);
    }

    /* Maintain min touch target size on mobile */
    .timer-preset-btn {
        min-width: 80px;
        min-height: 44px;
        padding: var(--space-2) var(--space-3);
        font-size: 0.8125rem;
    }

    .timer-controls .btn {
        min-width: 100px;
        min-height: 44px;
        padding: var(--space-2) var(--space-4);
        font-size: 0.875rem;
    }

    .timer-options {
        flex-direction: column;
        align-items: center;
        gap: var(--space-2);
    }

    .timer-container.fullscreen .timer-display-wrapper {
        width: 280px;
        height: 280px;
    }

    .timer-container.fullscreen .timer-time {
        font-size: 3.5rem;
    }

    .timer-container.fullscreen .timer-percent {
        font-size: 1.125rem;
    }

    .app-header {
        margin-bottom: var(--space-4);
    }

    .use-cases {
        padding: var(--space-4);
        margin-top: var(--space-6);
    }

    .use-cases-list {
        grid-template-columns: 1fr;
    }

    .help-panel {
        max-width: 100%;
    }
}

@media (max-width: 375px) {
    .timer-display-wrapper {
        width: 180px;
        height: 180px;
    }

    .timer-time {
        font-size: 1.75rem;
    }

    .timer-input-group input {
        width: 55px;
        font-size: 1.125rem;
    }
}

/* RTL Support */
[dir="rtl"] .timer-inputs,
[dir="rtl"] .timer-presets,
[dir="rtl"] .timer-controls,
[dir="rtl"] .timer-options {
    direction: rtl;
}

/* Dark mode adjustments */
@media (prefers-color-scheme: dark) {
    .timer-input-group input {
        background: var(--color-bg-alt);
        border-color: var(--color-border);
    }

    .timer-preset-btn {
        background: var(--color-bg-alt);
        border-color: var(--color-border);
    }
}

/* Animations */
@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.6;
    }
}

.timer-container.timer-complete .timer-time {
    animation: pulse 1s ease-in-out infinite;
    color: var(--color-error);
}

/* Accessibility */
.timer-container:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 4px;
}

/* ========================================
   Use Cases Section
   ======================================== */

.use-cases {
    width: 100%;
    max-width: 900px;
    margin: var(--space-8) auto 0;
    padding: var(--space-6);
    background: var(--color-bg-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.use-cases h2 {
    font-size: var(--font-size-xl);
    margin-bottom: var(--space-3);
    text-align: center;
}

.use-cases-intro {
    color: var(--color-text-muted);
    margin-bottom: var(--space-4);
    text-align: center;
}

.use-cases-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: var(--space-4);
}

.use-cases-list li {
    padding: var(--space-4);
    background: var(--color-bg-alt);
    border-radius: var(--radius-md);
    border-left: 3px solid var(--color-primary);
}

.use-cases-list strong {
    display: block;
    margin-bottom: var(--space-2);
    color: var(--color-text);
    font-weight: 600;
}

.use-cases-list p {
    margin: 0;
    color: var(--color-text-muted);
    font-size: var(--font-size-sm);
    line-height: 1.6;
}

/* ========================================
   Help Panel
   ======================================== */

.help-panel {
    position: fixed;
    top: 0;
    right: 0;
    width: 100%;
    max-width: 400px;
    height: 100vh;
    background: var(--color-bg-card);
    border-left: 1px solid var(--color-border);
    box-shadow: var(--shadow-xl);
    z-index: 1000;
    overflow-y: auto;
    transform: translateX(100%);
    transition: transform var(--transition-base);
}

.help-panel:not([hidden]) {
    transform: translateX(0);
}

.help-content {
    padding: var(--space-6);
}

.help-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--space-6);
    padding-bottom: var(--space-4);
    border-bottom: 1px solid var(--color-border);
}

.help-header h2 {
    font-size: var(--font-size-xl);
    margin: 0;
}

.help-close {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    background: var(--color-bg-alt);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.help-close:hover {
    background: var(--color-primary);
    color: white;
    border-color: var(--color-primary);
}

.help-close:focus {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

.help-section {
    margin-bottom: var(--space-6);
}

.help-section h3 {
    font-size: var(--font-size-lg);
    margin-bottom: var(--space-3);
    color: var(--color-text);
}

.help-section ol,
.help-section ul {
    padding-left: var(--space-6);
    margin: 0;
}

.help-section li {
    margin-bottom: var(--space-2);
    color: var(--color-text-muted);
    line-height: 1.6;
}

.help-section p {
    color: var(--color-text-muted);
    line-height: 1.6;
}

/* ========================================
   Print styles
   ======================================== */

@media print {
    .timer-controls,
    .timer-presets,
    .timer-options,
    .help-panel {
        display: none;
    }
}