/* Modern SaaS TimetableMaker Styles */

/* Inter / System Font Smoothing */
body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Custom Scrollbars */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: rgba(156, 163, 175, 0.4);
    border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(156, 163, 175, 0.7);
}

/* Glassmorphism helpers */
.glass {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
}
.dark .glass {
    background: rgba(15, 23, 42, 0.85);
}

/* Drag and Drop SortableJS Styles */
.sortable-ghost {
    opacity: 0.4;
    transform: scale(0.96);
    background-color: #93c5fd !important;
    border: 2px dashed #3b82f6 !important;
}
.sortable-chosen {
    cursor: grabbing !important;
    box-shadow: 0 10px 25px -5px rgba(0, 0, 0, 0.2);
    transform: scale(1.02);
}
.sortable-drag {
    opacity: 0.95;
    cursor: grabbing !important;
}

/* Class Block Styling */
.timetable-block {
    transition: transform 0.15s ease, box-shadow 0.15s ease, border-color 0.15s ease;
    cursor: grab;
    user-select: none;
}
.timetable-block:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 12px -2px rgba(0, 0, 0, 0.1);
}
.timetable-block:active {
    cursor: grabbing;
}

/* Toast Notifications */
#toastContainer {
    position: fixed;
    bottom: 1.5rem;
    right: 1.5rem;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    pointer-events: none;
}
.toast-msg {
    pointer-events: auto;
    animation: toastSlideUp 0.25s cubic-bezier(0.16, 1, 0.3, 1) forwards;
    transition: opacity 0.2s ease, transform 0.2s ease;
}
@keyframes toastSlideUp {
    from {
        opacity: 0;
        transform: translateY(16px) scale(0.96);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

/* Ad Container */
.ad-container {
    min-height: 90px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 2rem 0;
    width: 100%;
    /* Transparent or clean placeholder styling */
    position: relative;
    border-radius: 0.75rem;
}
.ad-container:empty {
    min-height: 0;
    margin: 0;
}

/* PRINT CSS (Optimized for A4 landscape / portrait) */
@media print {
    /* Hide all non-printable elements */
    header,
    footer,
    #sidebar,
    #topToolbar,
    #actionToolbar,
    #mobileActionBar,
    #daySelectorTabs,
    .ad-container,
    .no-print,
    button,
    #toastContainer,
    #importFileInput,
    dialog,
    .modal-backdrop {
        display: none !important;
    }

    body {
        background: #ffffff !important;
        color: #000000 !important;
        padding: 0 !important;
        margin: 0 !important;
        font-size: 10pt !important;
    }

    /* Print header block */
    #printHeader {
        display: block !important;
        margin-bottom: 1rem;
        text-align: center;
    }

    #timetableWrapper {
        overflow: visible !important;
        max-width: 100% !important;
        width: 100% !important;
        box-shadow: none !important;
        border: none !important;
        padding: 0 !important;
        margin: 0 !important;
    }

    #timetableGridTable {
        width: 100% !important;
        border-collapse: collapse !important;
        page-break-inside: avoid !important;
    }

    #timetableGridTable th,
    #timetableGridTable td {
        border: 1px solid #cbd5e1 !important;
        padding: 6px !important;
        position: static !important;
        left: auto !important;
        top: auto !important;
        right: auto !important;
    }

    .sticky,
    [class*="sticky"] {
        position: static !important;
        left: auto !important;
        top: auto !important;
        right: auto !important;
    }

    .line-clamp-1,
    .line-clamp-2,
    .line-clamp-3 {
        display: block !important;
        -webkit-line-clamp: unset !important;
        overflow: visible !important;
    }

    .truncate {
        overflow: visible !important;
        text-overflow: clip !important;
        white-space: normal !important;
    }

    /* Preserve background colors in print */
    * {
        -webkit-print-color-adjust: exact !important;
        print-color-adjust: exact !important;
    }

    @page {
        size: landscape;
        margin: 1cm;
    }
}