/* Mobile-First Calendar Styles */

/* ============================================
   Mobile Bottom Navigation
   ============================================ */

.mobile-bottom-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: #ffffff;
    border-top: 1px solid #e5e5e5;
    display: flex;
    justify-content: space-around;
    padding: 0.5rem 0;
    z-index: 1000;
    box-shadow: 0 -2px 10px rgba(0, 0, 0, 0.1);
}

.mobile-bottom-nav .nav-btn {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: none;
    border: none;
    padding: 0.5rem 1rem;
    cursor: pointer;
    color: #666;
    transition: color 0.2s, transform 0.1s;
    min-width: 48px;
    min-height: 48px;
    gap: 0.25rem;
}

.mobile-bottom-nav .nav-btn:active {
    transform: scale(0.95);
}

.mobile-bottom-nav .nav-btn.active {
    color: #4a90e2;
}

.mobile-bottom-nav .nav-btn svg {
    width: 24px;
    height: 24px;
}

.mobile-bottom-nav .nav-btn span {
    font-size: 0.7rem;
    font-weight: 500;
}

/* ============================================
   Mobile Layout Adjustments
   ============================================ */

/* Container padding für Bottom-Nav */
.calendar-container {
    padding-bottom: 80px; /* Platz für Bottom-Nav */
}

/* ============================================
   Mobile Header (kompakter)
   ============================================ */

@media (max-width: 768px) {
    .calendar-header {
        padding: 1rem;
        margin-bottom: 1rem;
    }

    .calendar-header h1 {
        font-size: 1.5rem;
        margin: 0 0 0.75rem 0;
    }

    /* View Switcher als Tabs */
    .view-switcher {
        display: flex;
        gap: 0.25rem;
        margin-bottom: 0;
        background: white;
        border-radius: 6px;
        padding: 0.25rem;
        box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    }

    .view-btn {
        flex: 1;
        padding: 0.6rem 0.5rem;
        font-size: 0.85rem;
        border: none;
        background: transparent;
    }

    .view-btn.active {
        background: #333;
        color: white;
        border-radius: 4px;
    }

    /* Filter als Slide-In Panel (versteckt per default) */
    .filters {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: white;
        box-shadow: -2px 0 10px rgba(0, 0, 0, 0.1);
        padding: 1.5rem;
        z-index: 2000;
        transition: right 0.3s ease-in-out;
        overflow-y: auto;
    }

    .filters.open {
        right: 0;
    }

    .filter-group {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.5rem;
        margin-bottom: 1.5rem;
    }

    .filter-group label {
        font-size: 1rem;
        margin-bottom: 0.25rem;
    }

    .filter-btn {
        width: 100%;
        padding: 0.75rem 1rem;
        text-align: left;
        font-size: 0.9rem;
    }

    /* Filter Overlay */
    .filter-overlay {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1999;
        display: none;
        opacity: 0;
        transition: opacity 0.3s;
    }

    .filter-overlay.visible {
        display: block;
        opacity: 1;
    }

    /* Filter Header mit Close-Button */
    .filters::before {
        content: 'Filter';
        display: block;
        font-size: 1.2rem;
        font-weight: 600;
        margin-bottom: 1rem;
        padding-bottom: 1rem;
        border-bottom: 1px solid #e5e5e5;
    }

    /* Close Button für Filter-Panel */
    .filters .filter-close {
        position: absolute;
        top: 1.5rem;
        right: 1.5rem;
        background: none;
        border: none;
        padding: 0.5rem;
        cursor: pointer;
        color: #666;
        display: flex;
        align-items: center;
        justify-content: center;
        min-width: 44px;
        min-height: 44px;
        z-index: 10;
    }

    .filters .filter-close:active {
        color: #333;
    }

    .filters .filter-close svg {
        width: 24px;
        height: 24px;
    }
}

/* Close Button auf Desktop verstecken */
@media (min-width: 769px) {
    .filter-close {
        display: none !important;
    }
}

/* ============================================
   Mobile Timeline (kompakter)
   ============================================ */

@media (max-width: 768px) {
    .timeline-container {
        padding-left: 1rem;
    }

    .timeline-day {
        margin-bottom: 1.5rem;
    }

    .timeline-day::before {
        left: -1rem;
        width: 2px;
    }

    .day-header {
        font-size: 1.1rem;
        margin-bottom: 0.75rem;
    }

    .day-header::before {
        left: -1.3rem;
        width: 8px;
        height: 8px;
    }

    .day-header .date-info {
        display: block;
        margin-left: 0;
        margin-top: 0.25rem;
        font-size: 0.8rem;
    }

    /* Timeline Items */
    .timeline-items {
        gap: 0.5rem;
    }

    .timeline-item {
        padding: 0.75rem;
        border-radius: 8px;
    }

    .timeline-item::before {
        width: 3px;
    }

    .item-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 0.25rem;
        margin-bottom: 0.5rem;
    }

    .item-title {
        font-size: 0.95rem;
        line-height: 1.3;
    }

    .item-time {
        font-size: 0.8rem;
        color: #999;
    }

    .item-meta {
        gap: 0.5rem;
        font-size: 0.8rem;
    }

    .meta-badge {
        padding: 0.2rem 0.4rem;
        font-size: 0.7rem;
    }

    .item-description {
        font-size: 0.85rem;
        margin-top: 0.5rem;
        color: #777;
    }
}

/* ============================================
   Touch Optimization
   ============================================ */

@media (max-width: 768px) {
    /* Größere Touch-Targets */
    .view-btn,
    .filter-btn,
    .nav-btn {
        min-height: 44px;
        min-width: 44px;
    }

    /* Smooth Scrolling */
    .timeline-container {
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }

    /* Scroll Snap für besseres Scrolling */
    .timeline-container {
        scroll-snap-type: y proximity;
    }

    .timeline-day {
        scroll-snap-align: start;
    }

    /* Tap Highlight entfernen */
    * {
        -webkit-tap-highlight-color: transparent;
    }

    /* Active States für Touch */
    .view-btn:active,
    .filter-btn:active,
    .timeline-item:active {
        opacity: 0.7;
    }
}

/* ============================================
   Desktop: Bottom-Nav verstecken
   ============================================ */

@media (min-width: 769px) {
    .mobile-bottom-nav {
        display: none;
    }

    .calendar-container {
        padding-bottom: 1rem;
    }

    /* Filter wieder normal anzeigen */
    .filters {
        position: static;
        width: auto;
        max-width: none;
        height: auto;
        padding: 0;
        box-shadow: none;
        display: flex;
        flex-direction: column;
        gap: 1rem;
    }

    .filter-overlay {
        display: none !important;
    }
}

/* ============================================
   Empty State (mobile optimiert)
   ============================================ */

@media (max-width: 768px) {
    .empty-state {
        padding: 2rem 1rem;
    }

    .empty-state h3 {
        font-size: 1.1rem;
    }

    .empty-state p {
        font-size: 0.9rem;
    }
}

/* ============================================
   Footer (mobile optimiert)
   ============================================ */

@media (max-width: 768px) {
    .calendar-footer {
        padding: 1.5rem 1rem;
        font-size: 0.8rem;
        margin-bottom: 60px; /* Extra Platz für Bottom-Nav */
    }
}

/* ============================================
   Swipe Animations
   ============================================ */

@media (max-width: 768px) {
    /* View-Switcher Container für Swipe */
    .view-switcher-container {
        position: relative;
        overflow: hidden;
    }

    /* Timeline Swipe-Feedback */
    .timeline-container.swiping {
        transition: none;
    }

    .timeline-container.swipe-transition {
        transition: transform 0.3s ease-out;
    }

    /* Swipe-Indicator (visuelles Feedback) */
    .swipe-indicator {
        position: fixed;
        top: 50%;
        transform: translateY(-50%);
        width: 60px;
        height: 60px;
        background: rgba(74, 144, 226, 0.2);
        border-radius: 50%;
        display: flex;
        align-items: center;
        justify-content: center;
        opacity: 0;
        transition: opacity 0.2s;
        pointer-events: none;
        z-index: 100;
    }

    .swipe-indicator.left {
        left: 20px;
    }

    .swipe-indicator.right {
        right: 20px;
    }

    .swipe-indicator.visible {
        opacity: 1;
    }

    .swipe-indicator svg {
        width: 30px;
        height: 30px;
        stroke: #4a90e2;
        stroke-width: 2;
    }

    /* View-Wechsel Animation */
    .calendar-container.view-changing {
        position: relative;
    }

    @keyframes slideInFromRight {
        from {
            transform: translateX(100%);
            opacity: 0.5;
        }
        to {
            transform: translateX(0);
            opacity: 1;
        }
    }

    @keyframes slideInFromLeft {
        from {
            transform: translateX(-100%);
            opacity: 0.5;
        }
        to {
            transform: translateX(0);
            opacity: 1;
        }
    }

    @keyframes slideOutToRight {
        from {
            transform: translateX(0);
            opacity: 1;
        }
        to {
            transform: translateX(100%);
            opacity: 0.5;
        }
    }

    @keyframes slideOutToLeft {
        from {
            transform: translateX(0);
            opacity: 1;
        }
        to {
            transform: translateX(-100%);
            opacity: 0.5;
        }
    }

    .timeline-container.slide-in-right {
        animation: slideInFromRight 0.3s ease-out;
    }

    .timeline-container.slide-in-left {
        animation: slideInFromLeft 0.3s ease-out;
    }
}

/* ============================================
   Pull-to-Refresh Styles
   ============================================ */

.pull-refresh-indicator {
    position: relative;
    height: 0;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    background: #f8f9fa;
    transition: height 0.2s ease-out, opacity 0.2s;
    opacity: 0;
}

.pull-refresh-indicator .refresh-spinner {
    width: 30px;
    height: 30px;
    border: 3px solid #e5e5e5;
    border-top-color: #4a90e2;
    border-radius: 50%;
    margin-bottom: 0.5rem;
    opacity: 0;
    transition: opacity 0.2s;
}

.pull-refresh-indicator.ready .refresh-spinner,
.pull-refresh-indicator.loading .refresh-spinner {
    opacity: 1;
}

.pull-refresh-indicator.loading .refresh-spinner {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.pull-refresh-indicator .refresh-text {
    font-size: 0.85rem;
    color: #666;
    font-weight: 500;
}

.pull-refresh-indicator.ready {
    background: #e8f4fd;
}

.pull-refresh-indicator.ready .refresh-text {
    color: #4a90e2;
}

/* ============================================
   Performance Optimierungen
   ============================================ */

/* GPU-Beschleunigung für Animationen */
.mobile-bottom-nav,
.filters,
.filter-overlay,
.timeline-container,
.swipe-indicator {
    will-change: transform;
}

/* Transitions nur wenn nicht in Bewegung */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}