/*
 * Enhanced Navbar Styles
 * Issue #547: Site Style Enhancements
 *
 * Features:
 * - Sticky (fixed) navbar that stays at top when scrolling
 * - Off-canvas sidebar navigation for mobile
 * - Larger touch targets for mobile
 * - Active page highlighting
 * - Print-friendly (hidden when printing)
 * - Backdrop overlay when mobile menu is open
 *
 * IMPORTANT: After modifying this file, run `python manage.py collectstatic`
 * CSS changes are NOT visible until collected!
 */

/* ==========================================================================
   STICKY NAVBAR & SPACING
   ========================================================================== */

/* Issue #567: Spacer to prevent content from hiding behind fixed navbar
   Height is dynamically set by JavaScript (navbar-enhanced.js) to match
   the actual navbar height, ensuring correct offset even if navbar height
   changes due to text wrapping, zoom, or font size changes.
   Default fallback: 60px (~56px navbar + buffer). */
.navbar-spacer {
    height: 60px;
}

/* Page title row for CMS pages */
.page-title-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.page-title-row h1 {
    margin: 0;
}

/* Ensure fixed navbar has proper z-index */
#main-navbar {
    z-index: 1030;
    transition: box-shadow 0.3s ease;
}

/* Add subtle shadow when scrolled */
#main-navbar.scrolled {
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* ==========================================================================
   OFF-CANVAS SIDEBAR (MOBILE)
   ========================================================================== */

/* Off-canvas specific styles */
.navbar-offcanvas {
    max-width: 300px;
    background-color: #212529;
    /* Match navbar bg-dark */
}

/* Override default off-canvas behavior - act as collapse on desktop */
@media (min-width: 992px) {
    .navbar-offcanvas {
        position: static !important;
        visibility: visible !important;
        transform: none !important;
        width: auto !important;
        max-width: none !important;
        flex-grow: 1;
        display: flex !important;
        flex-basis: auto;
        background-color: transparent !important;
        border: none !important;
    }

    .navbar-offcanvas .offcanvas-header {
        display: none !important;
    }

    .navbar-offcanvas .offcanvas-body {
        display: flex !important;
        flex-grow: 0;
        padding: 0;
        overflow-y: visible;
        width: 100%;
    }

    /* Hide backdrop on desktop */
    .offcanvas-backdrop {
        display: none !important;
    }
}

/* Mobile off-canvas styling */
@media (max-width: 991.98px) {
    .navbar-offcanvas {
        width: 85%;
        max-width: 320px;
    }

    /* Enhanced backdrop overlay - darker grey when menu is open */
    .offcanvas-backdrop {
        background-color: #000;
        opacity: 0;
        transition: opacity 0.3s ease-in-out;
    }

    .offcanvas-backdrop.show {
        opacity: 0.6;
    }

    /* Smooth slide-in animation for sidebar */
    .navbar-offcanvas {
        transition: transform 0.3s ease-in-out;
    }

    /* Off-canvas header styling */
    .navbar-offcanvas .offcanvas-header {
        padding: 1rem 1.25rem;
        border-bottom: 1px solid rgba(255, 255, 255, 0.15);
        background-color: #1a1d20;
    }

    .navbar-offcanvas .offcanvas-title {
        font-size: 1.1rem;
        font-weight: 600;
        display: flex;
        align-items: center;
    }

    .navbar-offcanvas .offcanvas-title img {
        filter: brightness(1.1);
    }

    .navbar-offcanvas .btn-close-white {
        opacity: 0.8;
        transition: opacity 0.15s ease;
    }

    .navbar-offcanvas .btn-close-white:hover {
        opacity: 1;
    }

    .navbar-offcanvas .offcanvas-body {
        padding: 0;
        display: flex;
        flex-direction: column;
    }

    /* Navigation list takes up available space */
    .navbar-offcanvas .navbar-nav {
        flex-direction: column;
        width: 100%;
    }

    /* Larger touch-friendly navigation links */
    .navbar-offcanvas .nav-link {
        padding: 1rem 1.25rem !important;
        font-size: 1.2rem !important;
        font-weight: 500;
        color: rgba(255, 255, 255, 0.85) !important;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
        min-height: 54px;
        display: flex;
        align-items: center;
    }

    .navbar-offcanvas .nav-link:hover,
    .navbar-offcanvas .nav-link:focus {
        color: #fff !important;
        background-color: rgba(255, 255, 255, 0.1);
    }

    /* Dropdown styling for mobile */
    .navbar-offcanvas .dropdown-menu {
        position: static !important;
        float: none;
        background-color: rgba(0, 0, 0, 0.2);
        border: none;
        border-radius: 0;
        margin: 0 !important;
        padding: 0;
    }

    .navbar-offcanvas .dropdown-item {
        padding: 0.875rem 1.25rem 0.875rem 2.5rem !important;
        font-size: 1.1rem !important;
        color: rgba(255, 255, 255, 0.75) !important;
        min-height: 48px;
        display: flex;
        align-items: center;
        border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    }

    .navbar-offcanvas .dropdown-item:hover,
    .navbar-offcanvas .dropdown-item:focus {
        color: #fff !important;
        background-color: rgba(255, 255, 255, 0.1) !important;
    }

    /* Dropdown divider */
    .navbar-offcanvas .dropdown-divider {
        border-color: rgba(255, 255, 255, 0.15);
        margin: 0;
    }

    /* User section at bottom of mobile menu */
    .navbar-offcanvas .user-section {
        margin-top: auto;
        padding: 1rem;
        border-top: 1px solid rgba(255, 255, 255, 0.2);
        flex-direction: column;
        align-items: flex-start !important;
        gap: 0.75rem;
    }

    .navbar-offcanvas .user-section .navbar-text {
        font-size: 1rem;
    }

    /* Login/Logout button full width on mobile */
    .navbar-offcanvas form.d-flex,
    .navbar-offcanvas .btn-outline-light {
        width: 100%;
        margin-top: 0.5rem;
    }

    .navbar-offcanvas .btn-outline-light {
        display: block;
        text-align: center;
    }
}

/* ==========================================================================
   ACTIVE PAGE HIGHLIGHTING
   ========================================================================== */

/* Active/current page indicator */
.nav-link.active,
.dropdown-item.active {
    color: #c9849e !important;
    /* Soft dusty rose */
    font-weight: 600;
}

.navbar-offcanvas .nav-link.active::before {
    content: "";
    width: 4px;
    height: 100%;
    background-color: #c9849e;
    position: absolute;
    left: 0;
    top: 0;
}

.navbar-offcanvas .nav-link.active {
    position: relative;
}

/* Desktop active indicator */
@media (min-width: 992px) {
    .navbar-nav .nav-link.active {
        border-bottom: 3px solid #c9849e;
        padding-bottom: calc(0.5rem - 3px) !important;
    }

    .navbar-nav .nav-link.active::before {
        display: none;
    }
}

/* ==========================================================================
   HAMBURGER BUTTON ENHANCEMENTS
   ========================================================================== */

.navbar-toggler {
    border: 2px solid rgba(255, 255, 255, 0.3);
    padding: 0.5rem 0.75rem;
}

.navbar-toggler:focus {
    box-shadow: 0 0 0 0.2rem rgba(255, 255, 255, 0.25);
}

.navbar-toggler-icon {
    width: 1.5em;
    height: 1.5em;
}

/* ==========================================================================
   PRINT STYLES
   ========================================================================== */

@media print {

    #main-navbar,
    .navbar-spacer,
    .offcanvas-backdrop {
        display: none !important;
    }
}

/* ==========================================================================
   DROPDOWN ANIMATION
   ========================================================================== */

/* Smooth dropdown animation on mobile */
@media (max-width: 991.98px) {
    .navbar-offcanvas .dropdown-menu {
        max-height: 0;
        overflow: hidden;
        transition: max-height 0.3s ease;
    }

    .navbar-offcanvas .dropdown-menu.show {
        max-height: 500px;
    }
}