:root {
    --primary-color: #1a3759;
    --primary-hover: #2a4a76;
    --dark-bg: #343a40;
    --sidebar-width: 250px;
    --sidebar-collapsed-width: 0px;
    --transition-speed: 0.3s;
    --navbar-height: 100px;
}

.nav-circle {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 8px;
    padding: 12px 24px;
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    cursor: pointer;
    transition: all var(--transition-speed) ease;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    display: inline-block;
    text-align: center;
}

@media (min-width: 768px) {
    .nav-circle {
        padding: 16px 32px;
        font-size: 17px;
    }
}

.nav-circle:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.15);
}

/* Focus styles removed - using :focus-visible instead */

/* Additional modern styling for better spacing and appearance */
.navbar-nav .nav-item {
    margin: 0 2px;
}

.navbar-nav .nav-circle {
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Sidebar Styles */
.sidebar {
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
    transform: translateX(0);
    opacity: 1;
}

/* Desktop sidebar collapse animation */
#desktop-sidebar.collapsing {
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
    transform: translateX(-100%);
    opacity: 0;
}

#desktop-sidebar.collapse:not(.show) {
    transform: translateX(-100%);
    opacity: 0;
}

#desktop-sidebar.collapse.show {
    transform: translateX(0);
    opacity: 1;
}

/* Smooth sidebar width transition - removed width transition to prevent layout shifts */
#desktop-sidebar {
    transition: transform var(--transition-speed) ease, opacity var(--transition-speed) ease;
}

.sidebar .accordion-button,
.offcanvas .accordion-button {
    background-color: var(--dark-bg);
    color: white;
    border: none;
    box-shadow: none;
    transition: all var(--transition-speed) ease;
}

.sidebar .accordion-button:not(.collapsed),
.offcanvas .accordion-button:not(.collapsed) {
    background-color: var(--primary-color);
    color: white;
}

.sidebar .accordion-button:focus {
    box-shadow: 0 0 0 0.2rem rgba(26, 55, 89, 0.25);
}

.sidebar .nav-link,
.offcanvas .nav-link {
    transition: all var(--transition-speed) ease;
    padding: 0.75rem 1rem;
}

.sidebar .nav-link:hover,
.offcanvas .nav-link:hover {
    background-color: var(--primary-hover);
    border-radius: 4px;
    transform: translateX(4px);
}

.sidebar .nav-link:focus {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* Main Content Layout - removed margin-left transition to prevent horizontal shifting */
.main-content {
    min-height: calc(100vh - var(--navbar-height) - 80px);
}

/* Responsive container fluid adjustments */
.container-fluid {
    max-width: 100%;
    padding-left: var(--bs-gutter-x, 0.75rem);
    padding-right: var(--bs-gutter-x, 0.75rem);
    overflow-x: hidden;
}

/* Desktop sidebar margin adjustment - removed to prevent horizontal shifting */
@media (min-width: 992px) {
    .main-content {
        margin-left: 0;
    }
}

/* Navbar mobile adjustments */
@media (max-width: 991.98px) {
    .navbar-nav {
        flex-direction: row;
        justify-content: flex-end;
    }

    .navbar-nav .nav-item {
        margin: 0 5px;
    }

    .navbar-brand img {
        max-height: 60px;
    }
}

/* Mobile bottom navigation padding */
@media (max-width: 991.98px) {
    main {
        padding-bottom: 80px;
    }
}

/* Footer positioning */
footer {
    margin-top: auto;
}

/* Mobile offcanvas animations */
.offcanvas {
    transition: transform var(--transition-speed) ease;
    width: var(--sidebar-width);
}

.offcanvas-start {
    transform: translateX(-100%);
}

.offcanvas.show {
    transform: translateX(0);
}

.offcanvas.offcanvas-start:not(.show) {
    transform: translateX(-100%);
}

/* Mobile Bottom Navigation */
.navbar.fixed-bottom {
    padding: 0;
    min-height: 70px;
}

.navbar.fixed-bottom .nav-link {
    transition: all var(--transition-speed) ease;
    border-radius: 0;
}

.navbar.fixed-bottom .nav-link:hover {
    background-color: var(--primary-hover);
}

.navbar.fixed-bottom .nav-link:focus {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

.navbar.fixed-bottom .nav-link i {
    transition: transform var(--transition-speed) ease;
}

.navbar.fixed-bottom .nav-link:hover i {
    transform: scale(1.1);
}

.offcanvas .accordion-button {
    background-color: var(--dark-bg);
    color: white;
    border: none;
}

.offcanvas .accordion-button:not(.collapsed) {
    background-color: var(--primary-color);
}

.offcanvas .nav-link {
    transition: all var(--transition-speed) ease;
}

.offcanvas .nav-link:hover {
    background-color: var(--primary-hover);
    transform: translateX(4px);
}

/* Responsive Grid Layout - Removed redundant single-column grid */

/* Accessibility Improvements */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .nav-circle {
        border: 2px solid white;
    }

    .sidebar .nav-link:hover {
        border: 2px solid white;
    }
}

/* Focus visible for keyboard navigation */
.nav-circle:focus-visible,
.sidebar .nav-link:focus-visible,
.navbar.fixed-bottom .nav-link:focus-visible {
    outline: 2px solid #fff;
    outline-offset: 2px;
}

/* Prevent horizontal scroll on mobile - removed from body, kept on container-fluid */

/* Touch targets for mobile */
@media (max-width: 767.98px) {
    .navbar.fixed-bottom .nav-link {
        min-width: 60px;
        min-height: 60px;
        padding: 8px;
    }

    .navbar.fixed-bottom .nav-link i {
        font-size: 24px;
    }

    .navbar.fixed-bottom small {
        font-size: 10px;
        margin-top: 2px;
    }
}

/* Skip link for accessibility */
.skip-link {
    position: absolute;
    top: -40px;
    left: 6px;
    background: var(--primary-color);
    color: white;
    padding: 8px;
    text-decoration: none;
    border-radius: 4px;
    z-index: 1000;
    transition: top var(--transition-speed) ease;
}

.skip-link:focus {
    top: 6px;
}

/* Enhanced touch targets for interactive elements */
@media (max-width: 767.98px) {
    button, .btn, .accordion-button {
        min-height: 44px;
        min-width: 44px;
        padding: 12px;
    }

    .navbar.fixed-bottom .nav-link {
        min-width: 60px !important;
        min-height: 60px !important;
        padding: 8px !important;
    }

    .form-control, .form-select {
        min-height: 44px;
        font-size: 16px; /* Prevents zoom on iOS */
    }
}

/* Focus management for keyboard navigation */
.focus-visible:focus-visible {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Prevent content overflow */
* {
    box-sizing: border-box;
}

.content-overflow-guard {
    word-wrap: break-word;
    overflow-wrap: break-word;
    hyphens: auto;
}

/* Visual hierarchy maintenance */
@media (max-width: 575.98px) {
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }
    h4 { font-size: 1.1rem; }
    h5 { font-size: 1rem; }
    h6 { font-size: 0.9rem; }
}

@media (min-width: 576px) and (max-width: 767.98px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.75rem; }
    h3 { font-size: 1.5rem; }
    h4 { font-size: 1.25rem; }
    h5 { font-size: 1.1rem; }
    h6 { font-size: 1rem; }
}

/* Responsive image handling */
img {
    max-width: 100%;
    height: auto;
}

/* Ensure proper spacing in content areas */
.content-area {
    line-height: 1.6;
}

@media (max-width: 575.98px) {
    .content-area {
        font-size: 0.95rem;
        line-height: 1.5;
    }
}