/* Mobile + Desktop Sidebar Behavior for PGDD */

:root {
    --sidepanel-width: 280px;
}

/* Ensure white background on all pages */
html, body {
    background-color: #ffffff !important;
    min-height: 100vh;
    overflow-x: hidden; /* prevent horizontal scroll */
}

.main-content {
    background-color: #ffffff !important;
    min-height: calc(100vh - 70px);
    margin-left: 0; /* mobile-first: no offset; desktop adds offset */
}

/* Mobile Navigation Improvements */
@media (max-width: 768px) {
    :root { --sidepanel-width: 80vw; }
    .navbar-brand span {
        font-size: 1.1rem;
    }
    
    .navbar-toggler {
        border: none;
        padding: 0.25rem 0.5rem;
        font-size: 1.2rem;
    }
    
    .navbar-toggler:focus {
        box-shadow: none;
    }
    
    /* Side panel mobile adjustments - off-canvas (left-based to avoid subpixel overflow) */
    .side-panel {
        width: var(--sidepanel-width);
        z-index: 1050;
        left: calc(-1 * var(--sidepanel-width));
        max-width: 100vw;
        box-sizing: border-box;
        overscroll-behavior: contain;
        transform: none !important; /* prevent cumulative rounding overflow */
        transition: left 0.3s ease-in-out;
    }

    .side-panel.active {
        left: 0;
    }
    
    .sidebar-overlay {
        z-index: 1040;
        background-color: rgba(255, 255, 255, 1); /* solid white overlay on mobile */
    }
    
    /* Main content padding on mobile */
    .main-content {
        padding-top: 1rem;
        margin-left: 0; /* ensure no offset while sidebar is off-canvas */
    }

    /* Ensure navbar never exceeds viewport width on mobile */
    .navbar, .navbar * {
        max-width: 100vw;
    }
    
    /* Admin dashboard mobile fixes */
    .pgdd-card {
        margin-bottom: 1rem;
    }
    
    .btn-group.flex-wrap {
        flex-direction: column;
        width: 100%;
    }
    
    .btn-group.flex-wrap .btn {
        margin-bottom: 0.25rem;
        border-radius: 0.375rem !important;
    }
    
    /* Statistics cards mobile stacking */
    .col-xl-3.col-md-6 {
        margin-bottom: 1rem;
    }
    
    /* Table responsive improvements */
    .table-responsive {
        border: none;
        margin-bottom: 1rem;
    }
    
    .table-responsive table {
        font-size: 0.875rem;
    }
    
    /* Form improvements on mobile */
    .form-control, .form-select {
        font-size: 16px; /* Prevents zoom on iOS */
    }
    
    /* Modal improvements */
    .modal-dialog {
        margin: 0.5rem;
    }
    
    /* Release notes mobile fixes */
    .list-group-item {
        padding: 0.75rem;
    }
    
    .list-group-item h5 {
        font-size: 1rem;
        margin-bottom: 0.5rem;
    }
    
    .list-group-item p {
        font-size: 0.875rem;
    }
}

/* Extra small devices (phones, less than 576px) */
@media (max-width: 575.98px) {
    :root { --sidepanel-width: 80vw; } /* keep consistent to avoid overflow */
    .container-fluid {
        padding-left: 0.75rem;
        padding-right: 0.75rem;
    }
    
    .btn-group.flex-wrap {
        gap: 0.25rem;
    }
    
    .btn-group.flex-wrap .btn {
        padding: 0.375rem 0.5rem;
        font-size: 0.8rem;
    }
    
    h1, h2 {
        font-size: 1.5rem;
    }
    
    h3, h4 {
        font-size: 1.25rem;
    }
    
    /* Homepage specific mobile fixes */
    .hero-section {
        padding: 2rem 0;
    }
    
    .stats-container {
        padding: 1rem 0;
    }
    
    .stat-card {
        margin-bottom: 1rem;
    }
    
    /* Sidebar footer on mobile */
    .side-panel-footer {
        font-size: 0.75rem;
        padding: 0.5rem;
    }
}

/* Landscape phone adjustments */
@media (max-width: 768px) and (orientation: landscape) {
    .side-panel {
        width: 250px;
    }
    
    .main-content {
        padding-top: 0.5rem;
    }
}

/* Ensure proper sidebar behavior */
.side-panel {
    position: fixed;
    top: 0;
    left: calc(-1 * var(--sidepanel-width));
    width: var(--sidepanel-width);
    height: 100vh;
    background-color: #ffffff;
    transition: transform 0.3s ease-in-out;
    z-index: 1050;
    overflow-y: auto;
    border-right: 1px solid #dee2e6;
}

.side-panel.active {
    transform: translateX(var(--sidepanel-width));
}

.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    z-index: 1040;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s ease-in-out, visibility 0.3s ease-in-out;
}

.sidebar-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* Prevent background scroll when sidebar is open */
body.no-scroll {
    overflow: hidden;
}

/* Fix for navbar brand alignment */
.navbar-brand {
    margin-right: auto;
}

/* Desktop behavior: sidebar fixed and toggle hidden */
@media (min-width: 992px) {
    .side-panel {
        left: 0 !important;
        transform: none !important;
        box-shadow: none;
    }
    .sidebar-overlay {
        display: none !important;
    }
    .navbar-toggler {
        display: none !important;
    }
    .main-content {
        margin-left: var(--sidepanel-width);
    }
}

/* Ensure dropdown menus work properly on mobile */
@media (max-width: 768px) {
    .dropdown-menu {
        position: absolute;
        right: 0;
        left: auto;
        min-width: 200px;
    }
}