/* Reusable Components */

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-lg);
    font-family: var(--font-body);
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    text-decoration: none;
    border: none;
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    white-space: nowrap;
    user-select: none;
    position: relative;
    overflow: hidden;
}

.btn:focus-visible {
    outline: 2px solid var(--color-info);
    outline-offset: 2px;
}

.btn-primary {
    background-color: var(--color-primary-black);
    color: var(--color-background-white);
    box-shadow: var(--shadow-2);
}

.btn-primary:hover {
    background-color: var(--color-text-primary);
    box-shadow: var(--shadow-3);
}

.btn-primary:active {
    box-shadow: var(--shadow-1);
}

.btn-secondary {
    background-color: var(--color-background-white);
    color: var(--color-text-primary);
    border: 1px solid var(--color-background-gray);
    box-shadow: var(--shadow-1);
}

.btn-secondary:hover {
    background-color: var(--color-highlight);
    border-color: var(--color-text-tertiary);
    box-shadow: var(--shadow-2);
}

.btn-secondary:active {
    box-shadow: var(--shadow-1);
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
    box-shadow: var(--shadow-1) !important;
}

.btn-large {
    padding: var(--spacing-md) var(--spacing-xl);
    font-size: var(--text-base);
}

.btn-icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.btn-large .btn-icon {
    width: 24px;
    height: 24px;
}

/* Cards */
.card {
    background-color: var(--color-surface);
    border-radius: var(--radius-xl);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-2);
    transition: all var(--duration-fast) var(--ease-out);
}

.card:hover {
    box-shadow: var(--shadow-3);
    transform: translateY(-1px);
}

/* iPhone Mockup */
.iphone-mockup {
    width: 300px;
    max-width: 100%;
    margin: 0 auto;
    position: relative;
}

@media (min-width: 768px) {
    .iphone-mockup {
        width: 350px;
    }
}

.iphone-frame {
    position: relative;
    width: 100%;
    aspect-ratio: calc(375 / 750);
    background-color: var(--color-primary-black);
    border-radius: var(--iphone-border-radius);
    padding: 8px;
    box-shadow: var(--shadow-6);
}

.iphone-frame::before {
    content: '';
    position: absolute;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    width: 120px;
    height: 30px;
    background-color: var(--color-primary-black);
    border-radius: 0 0 16px 16px;
    z-index: 2;
}

.iphone-screen {
    width: 100%;
    height: 100%;
    background: linear-gradient(to bottom, #FFFFFF, #F3F4F6);
    border-radius: calc(var(--iphone-border-radius) - 8px);
    overflow: hidden;
    position: relative;
}

/* App Screenshot Placeholders */
.app-screenshot-placeholder {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--spacing-lg);
    background: linear-gradient(to bottom, #FFFFFF, #F9FAFB);
}

.placeholder-header {
    position: absolute;
    top: 60px;
    left: 50%;
    transform: translateX(-50%);
    font-family: var(--font-display);
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
}

.placeholder-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.timer-display {
    font-family: var(--font-mono);
    font-size: var(--text-3xl);
    font-weight: var(--font-light);
    color: var(--color-text-primary);
    margin-bottom: var(--spacing-sm);
}

/* Enhanced Timer Components */
.enhanced-timer-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-lg);
}

.timer-circle-wrapper {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.timer-progress-foreground {
    transition: stroke-dashoffset 0.3s ease-in-out;
    stroke-linecap: round;
}

.timer-circle-wrapper .timer-display {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    font-family: 'JetBrains Mono', monospace;
    font-size: var(--text-2xl);
    font-weight: var(--font-light);
    color: var(--color-text-primary);
    margin: 0;
    letter-spacing: 0.02em;
}

.timer-circle-wrapper .timer-display.small {
    font-size: var(--text-lg);
}

.timer-controls-enhanced {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-xl);
    position: relative;
}

.timer-controls-enhanced.small {
    gap: var(--spacing-lg);
}

.control-btn-enhanced {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    transition: all var(--duration-fast) var(--ease-out);
    background-color: var(--color-background-gray);
    color: var(--color-text-secondary);
}

.control-btn-enhanced.small {
    width: 36px;
    height: 36px;
}

.control-btn-enhanced.play-pause {
    width: 52px;
    height: 52px;
    background-color: var(--color-primary-black);
    color: var(--color-background-white);
    box-shadow: var(--shadow-2);
}

.control-btn-enhanced.play-pause.small {
    width: 44px;
    height: 44px;
}

.control-btn-enhanced:hover {
    transform: translateY(-1px);
    box-shadow: var(--shadow-2);
}

.control-btn-enhanced.play-pause:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-3);
}

.control-btn-enhanced.settings {
    background-color: rgba(156, 163, 175, 0.1);
}

.control-btn-enhanced.favorite {
    background-color: rgba(239, 68, 68, 0.1);
    color: #EF4444;
}

.control-btn-enhanced.favorite:hover {
    background-color: rgba(239, 68, 68, 0.15);
}

/* Mobile Optimizations for Enhanced Timer */
@media (max-width: 768px) {
    .enhanced-timer-container {
        gap: var(--spacing-md);
    }
    
    .timer-circle-wrapper .timer-display {
        font-size: var(--text-xl);
    }
    
    .timer-circle-wrapper .timer-display.small {
        font-size: var(--text-base);
    }
    
    .timer-controls-enhanced {
        gap: var(--spacing-lg);
    }
    
    .timer-controls-enhanced.small {
        gap: var(--spacing-md);
    }
    
    .control-btn-enhanced {
        width: 40px;
        height: 40px;
    }
    
    .control-btn-enhanced.small {
        width: 32px;
        height: 32px;
    }
    
    .control-btn-enhanced.play-pause {
        width: 48px;
        height: 48px;
    }
    
    .control-btn-enhanced.play-pause.small {
        width: 40px;
        height: 40px;
    }
}

/* Enhanced Animation on Scroll */
.enhanced-timer-container {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--duration-slow) var(--ease-out),
                transform var(--duration-slow) var(--ease-out);
}

.enhanced-timer-container.visible {
    opacity: 1;
    transform: translateY(0);
}

.timer-progress-ring {
    opacity: 0;
    transform: rotate(-90deg) scale(0.9);
    transition: opacity var(--duration-slow) var(--ease-out) 0.2s,
                transform var(--duration-slow) var(--ease-out) 0.2s;
}

.timer-progress-ring.visible {
    opacity: 1;
    transform: rotate(-90deg) scale(1);
}

.control-btn-enhanced {
    opacity: 0;
    transform: translateY(10px);
    transition: opacity var(--duration-normal) var(--ease-out),
                transform var(--duration-normal) var(--ease-out);
}

.control-btn-enhanced.visible {
    opacity: 1;
    transform: translateY(0);
}

.control-btn-enhanced:nth-child(1) {
    transition-delay: 0.1s;
}

.control-btn-enhanced:nth-child(2) {
    transition-delay: 0.2s;
}

.control-btn-enhanced:nth-child(3) {
    transition-delay: 0.3s;
}

.timer-label {
    font-family: var(--font-body);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    color: var(--color-text-secondary);
    letter-spacing: 0.05em;
}

.timer-circle {
    width: 120px;
    height: 120px;
    border: 4px solid var(--color-background-gray);
    border-radius: 50%;
    position: relative;
}

.timer-circle::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 60px;
    height: 60px;
    background-color: var(--color-highlight);
    border-radius: 50%;
}

.timer-controls {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-top: var(--spacing-lg);
}

.control-btn {
    width: 40px;
    height: 40px;
    background-color: var(--color-background-gray);
    border-radius: 50%;
}

.control-btn.main {
    width: 48px;
    height: 48px;
    background-color: var(--color-primary-black);
}

/* Badges */
.badge {
    display: inline-flex;
    align-items: center;
    padding: var(--spacing-xs) var(--spacing-sm);
    font-size: var(--text-xs);
    font-weight: var(--font-medium);
    border-radius: var(--radius-full);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.badge.beginner {
    background-color: rgba(16, 185, 129, 0.1);
    color: var(--color-success);
}

.badge.intermediate {
    background-color: rgba(245, 158, 11, 0.1);
    color: var(--color-warning);
}

.badge.advanced {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--color-info);
}

/* Loading States */
.loading {
    position: relative;
    overflow: hidden;
}

.loading::after {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, 
        transparent 0%, 
        rgba(255, 255, 255, 0.2) 50%, 
        transparent 100%
    );
    animation: shimmer 2s infinite;
}

@keyframes shimmer {
    0% { left: -100%; }
    100% { left: 100%; }
}

/* Ripple Effect */
.ripple {
    position: relative;
    overflow: hidden;
}

.ripple::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background-color: var(--color-ripple-light);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.ripple:active::before {
    width: 300px;
    height: 300px;
}

/* Skeleton Loaders */
.skeleton {
    background: linear-gradient(90deg, 
        var(--color-background-gray) 25%, 
        var(--color-highlight) 50%, 
        var(--color-background-gray) 75%
    );
    background-size: 200% 100%;
    animation: skeleton-loading 2s infinite;
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}

/* Status Indicators */
.status-dot {
    display: inline-block;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    margin-right: var(--spacing-xs);
}

.status-dot.success {
    background-color: var(--color-success);
}

.status-dot.warning {
    background-color: var(--color-warning);
}

.status-dot.info {
    background-color: var(--color-info);
}

/* Showcase Screen Styles */
.programs-content, .stats-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    max-width: 200px;
    margin: 0 auto;
}

.program-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    width: 100%;
    max-width: 180px;
}

.mini-program-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.program-dot {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    flex-shrink: 0;
}

.program-dot.beginner {
    background-color: var(--color-success);
}

.program-dot.intermediate {
    background-color: var(--color-warning);
}

.program-dot.advanced {
    background-color: var(--color-info);
}

.program-info h4 {
    font-size: var(--text-sm);
    font-weight: var(--font-medium);
    color: var(--color-text-primary);
    margin: 0 0 2px 0;
}

.program-info span {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: repeat(2, 1fr);
    gap: var(--spacing-sm);
    width: 100%;
    max-width: 140px;
}

.stat-item {
    text-align: center;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    min-width: 0;
    min-height: 50px;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.stat-value {
    font-size: var(--text-lg);
    font-weight: var(--font-semibold);
    color: var(--color-text-primary);
    margin-bottom: 2px;
}

.stat-label {
    font-size: var(--text-xs);
    color: var(--color-text-secondary);
    line-height: 1.2;
    font-weight: var(--font-medium);
}

.progress-chart {
    width: 100%;
    max-width: 140px;
    padding: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.8);
    border-radius: var(--radius-lg);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.chart-placeholder {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* Carousel Transitions */
.showcase-item {
    opacity: 0;
    transform: translateX(20px);
    transition: opacity var(--duration-normal) var(--ease-out),
                transform var(--duration-normal) var(--ease-out);
    pointer-events: none;
}

.showcase-item.active {
    opacity: 1;
    transform: translateX(0);
    pointer-events: auto;
}

.showcase-item:not(.active) {
    display: none;
}

@media (min-width: 1024px) {
    .showcase-item:not(.active) {
        display: grid;
        position: absolute;
        top: 0;
        left: 0;
        width: 100%;
    }
}