/* Responsive Breakpoints */

/* Mobile Bottom Navigation */
.mobile-bottom-nav {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border);
    padding: 0.3rem 0.5rem;
    z-index: 10000;
    backdrop-filter: blur(10px);
    -webkit-user-select: none;
    user-select: none;
    touch-action: manipulation;
}

.mobile-nav-items {
    display: flex;
    justify-content: space-around;
    align-items: center;
    max-width: 600px;
    margin: 0 auto;
}

.mobile-nav-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 0.4rem;
    border-radius: 8px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.15rem;
    transition: all 0.15s;
    flex: 1;
    max-width: 70px;
    -webkit-tap-highlight-color: rgba(59, 130, 246, 0.1);
    touch-action: manipulation;
}

.mobile-nav-btn:active {
    background: rgba(59, 130, 246, 0.15);
    transform: scale(0.95);
}

.mobile-nav-btn svg {
    width: 22px;
    height: 22px;
    pointer-events: none;
}

.mobile-nav-btn span {
    font-size: 0.6rem;
    font-weight: 600;
    pointer-events: none;
}

/* View button specific styles */
#mobileView {
    flex-direction: column;
}

#mobileView .view-number {
    font-size: 1.1rem;
    font-weight: 700;
    line-height: 1;
    color: currentColor;
}

#mobileView .view-label {
    font-size: 0.6rem;
    font-weight: 600;
}

.mobile-nav-btn.active {
    color: var(--accent);
    background: rgba(59, 130, 246, 0.1);
}

.mobile-nav-btn.spinning svg {
    animation: spin 0.5s linear;
}

/* Hide labels when setting is enabled */
.mobile-bottom-nav.hide-labels .mobile-nav-btn span {
    display: none;
}

.mobile-bottom-nav.hide-labels #mobileView .view-number {
    display: block;
    font-size: 1.3rem;
}

.mobile-bottom-nav.hide-labels .mobile-nav-btn {
    padding: 0.5rem 0.4rem;
}

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

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* Mobile Popup Menus */
.mobile-popup {
    display: none;
    position: fixed;
    bottom: 50px;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    border-radius: 16px 16px 0 0;
    padding: 1rem;
    z-index: 9999;
    animation: slideUpMobile 0.2s ease;
    box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.4);
    touch-action: manipulation;
    max-height: 60vh;
    overflow-y: auto;
}

@keyframes slideUpMobile {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

.mobile-popup.active {
    display: block;
}

.mobile-popup-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1rem;
    padding-bottom: 0.75rem;
    border-bottom: 1px solid var(--border);
}

.mobile-popup-title {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
}

.mobile-popup-close {
    background: transparent;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    padding: 0.25rem;
}

.mobile-popup-close svg {
    width: 20px;
    height: 20px;
}

.mobile-view-options,
.mobile-menu-options {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mobile-option-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.7rem 1rem;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: 600;
    transition: all 0.15s;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    -webkit-tap-highlight-color: rgba(59, 130, 246, 0.2);
    touch-action: manipulation;
}

.mobile-option-btn svg {
    width: 18px;
    height: 18px;
    pointer-events: none;
}

.mobile-option-btn.active {
    background: var(--accent);
    color: white;
    border-color: var(--accent);
}

.mobile-option-btn:active {
    transform: scale(0.98);
}

/* Tablet and smaller desktops */
@media (max-width: 1200px) {
    .header-content {
        gap: 1rem;
    }
}

/* Tablets */
@media (max-width: 768px) {
    .multi-select-bar {
        bottom: 72px;
    }

    /* Show bottom nav */
    .mobile-bottom-nav {
        display: block;
    }
    
    /* Add padding to avoid bottom nav overlap */
    .week-container {
        padding-bottom: 70px;
    }

    .inbox-create-row {
        flex-direction: column;
    }

    .inbox-add-btn {
        width: 100%;
    }

    .inbox-item-actions {
        gap: 0.25rem;
    }

    .inbox-action-btn {
        padding: 0.16rem 0.42rem;
        font-size: 0.68rem;
        line-height: 1.1;
    }
    
    /* Simplify header for mobile */
    .app-header {
        padding: 0.45rem 0.75rem;
    }
    
    .header-content {
        display: flex;
        justify-content: flex-start;
        align-items: center;
        gap: 0.5rem;
        grid-template-columns: none;
    }
    
    /* Logo left */
    .header-left {
        display: flex !important;
        flex-shrink: 0;
        align-items: center;
        min-width: 100px;
    }

    .header-left .search-container {
        display: none;
    }

    .app-logo {
        height: 30px;
        width: auto;
    }
    
    /* Week navigation rechts */
    .header-center {
        display: flex !important;
        flex: 1;
        justify-content: flex-end;
        padding-right: 0.5rem;
    }
    
    .header-center .view-controls {
        display: none;
    }
    
    .week-navigation {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }

    /* Hide Heute button in header (it's in bottom nav) */
    .week-navigation .today-btn {
        display: none;
    }

    /* Focus mode is desktop-only */
    .week-navigation #focusModeBtn {
        display: none;
    }

    .week-info {
        font-size: 0.75rem;
        min-width: 110px;
        text-align: center;
    }
    
    .nav-btn {
        width: 32px;
        height: 32px;
    }

    .nav-btn svg {
        width: 16px;
        height: 16px;
    }
    
    /* Hide right section */
    .header-right {
        display: none !important;
    }

    /* Single column layout */
    .week-grid {
        grid-template-columns: 1fr !important;
        gap: 1rem;
        overflow: visible;
    }
    
    .day-column {
        min-height: auto;
        overflow: visible;
    }

    .day-column {
        min-height: 260px;
    }

    /* 1-day view: the single column should fill the screen down to the bottom nav
       instead of sitting at the generic 260px used for the 3/5-day stacked lists.
       135px = sticky header (~53px, measured) + week-container's own top/bottom
       padding (12px + 70px, the latter already reserved to clear the fixed nav).
       !important because .week-container.no-backlog .day-column below forces
       min-height: 0 !important — the #weekGrid id here still wins on specificity. */
    #weekGrid .day-column:only-child {
        min-height: calc(100vh - 135px) !important;
        min-height: calc(100dvh - 135px) !important;
    }

    .backlog-column {
        min-height: 180px;
    }

    /* Mobile: When backlog is hidden, keep container scrollable but let days expand */
    .week-container.no-backlog {
        overflow-y: auto !important;
        height: auto !important;
    }

    .week-container.no-backlog .week-grid {
        overflow: visible !important;
        height: auto !important;
        flex: none !important;
        min-height: 0 !important;
    }

    .week-container.no-backlog .day-column {
        overflow: visible !important;
        height: auto !important;
        min-height: 0 !important;
        max-height: none !important;
    }
}

/* Mobile phones */
@media (max-width: 480px) {
    .week-container {
        padding: 0.75rem;
        padding-bottom: 70px;
    }
    
    .app-header {
        padding: 0.5rem 0.75rem;
    }
    
    .app-title {
        font-size: 1.1rem;
        line-height: 30px;
        height: 30px;
    }

    .week-info {
        font-size: 0.7rem;
        min-width: 90px;
    }
    
    .nav-btn {
        width: 30px;
        height: 30px;
    }

    .today-btn {
        padding: 0.25rem 0.6rem;
        font-size: 0.65rem;
    }
    
    /* Always show delete button */
    .task-delete {
        opacity: 0.5 !important;
    }

    .inbox-item-actions {
        gap: 0.2rem;
    }

    .inbox-action-btn {
        padding: 0.14rem 0.38rem;
        font-size: 0.62rem;
    }
}