/**
 * PWA Styles - PWA 전용 스타일
 * Interface Segregation Principle
 */

/* Install Prompt */
.install-prompt {
    position: fixed;
    bottom: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    max-width: 400px;
    width: calc(100% - var(--spacing-xl));
    background: var(--card-bg);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: slideUpBounce 0.5s ease;
}

@keyframes slideUpBounce {
    0% {
        transform: translateX(-50%) translateY(100px);
        opacity: 0;
    }

    70% {
        transform: translateX(-50%) translateY(-10px);
        opacity: 1;
    }

    100% {
        transform: translateX(-50%) translateY(0);
    }
}

.install-content {
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
}

.install-icon {
    font-size: 2.5rem;
    flex-shrink: 0;
}

.install-text {
    flex: 1;
}

.install-text strong {
    display: block;
    margin-bottom: var(--spacing-xs);
    font-size: 1.1rem;
}

.install-text p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin: 0;
}

.install-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.install-yes-btn {
    flex: 1;
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--primary-color);
    color: white;
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-base);
}

.install-yes-btn:hover {
    background: #1d4ed8;
    transform: translateY(-1px);
}

.install-no-btn {
    padding: var(--spacing-sm) var(--spacing-md);
    background: var(--bg-color);
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    font-weight: 600;
    transition: all var(--transition-base);
}

.install-no-btn:hover {
    background: var(--border-color);
}

body.dark-mode .install-no-btn {
    color: white;
    /* Explicitly white for close button in dark mode */
}

/* Offline Indicator */
.offline-indicator {
    position: fixed;
    top: var(--spacing-lg);
    left: 50%;
    transform: translateX(-50%);
    padding: var(--spacing-sm) var(--spacing-lg);
    background: var(--warning-color);
    color: white;
    border-radius: var(--radius-full);
    font-weight: 600;
    font-size: 0.875rem;
    box-shadow: var(--shadow-lg);
    z-index: 1000;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        transform: translateX(-50%) translateY(-50px);
        opacity: 0;
    }

    to {
        transform: translateX(-50%) translateY(0);
        opacity: 1;
    }
}

/* Update Available Banner */
.update-banner {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    padding: var(--spacing-md);
    background: var(--secondary-color);
    color: white;
    text-align: center;
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-md);
    animation: slideDown 0.3s ease;
}

.update-text {
    font-weight: 600;
}

.update-btn {
    padding: var(--spacing-xs) var(--spacing-md);
    background: white;
    color: var(--secondary-color);
    border: none;
    border-radius: var(--radius-sm);
    font-weight: 600;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.update-btn:hover {
    transform: scale(1.05);
}

/* Loading Spinner (PWA) */
.pwa-loading {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    z-index: 9999;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid rgba(255, 255, 255, 0.3);
    border-top-color: white;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

/* iOS Safe Area */
@supports (padding: max(0px)) {
    body {
        padding-top: max(var(--spacing-lg), env(safe-area-inset-top));
        padding-bottom: max(var(--spacing-lg), env(safe-area-inset-bottom));
        padding-left: max(var(--spacing-lg), env(safe-area-inset-left));
        padding-right: max(var(--spacing-lg), env(safe-area-inset-right));
    }

    .install-prompt {
        bottom: max(var(--spacing-lg), env(safe-area-inset-bottom));
    }
}

/* Standalone Mode (PWA Installed) */
@media (display-mode: standalone) {
    body {
        padding-top: var(--spacing-xl);
    }

    header {
        margin-top: var(--spacing-lg);
    }
}

/* Fullscreen Mode */
@media (display-mode: fullscreen) {
    .install-prompt {
        display: none;
    }
}