:root {
    --aod-primary: #2B4A3F;
    --aod-primary-dark: #1E3830;
    --aod-primary-light: #3D6455;
    --aod-accent: #C9A24B;
    --aod-danger: #B3261E;
    --aod-bg: #F5F6F5;
    --aod-sidebar-width: 260px;
    --aod-radius: 0.85rem;
    --aod-shadow: 0 2px 10px rgba(20, 30, 25, 0.06);
    --aod-shadow-hover: 0 6px 18px rgba(20, 30, 25, 0.1);
}

body {
    background-color: var(--aod-bg);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

/* ---------- Opšti polish: kartice, dugmad, badge-ovi ---------- */
.card {
    border-radius: var(--aod-radius) !important;
    box-shadow: var(--aod-shadow) !important;
}

.btn {
    border-radius: 0.6rem;
    font-weight: 500;
}

.btn-sm {
    border-radius: 0.5rem;
}

.form-control, .form-select {
    border-radius: 0.55rem;
    border-color: #dadedb;
}

.form-control:focus, .form-select:focus {
    border-color: var(--aod-primary-light);
    box-shadow: 0 0 0 0.2rem rgba(43, 74, 63, 0.12);
}

.badge {
    font-weight: 600;
    letter-spacing: 0.01em;
}

.list-group-item {
    border-color: #ecefec;
}

.modal-content {
    border-radius: var(--aod-radius);
    border: none;
    box-shadow: var(--aod-shadow-hover);
}

.modal-header, .modal-footer {
    border-color: #eceeec;
}

.nav-tabs {
    border-bottom-color: #e2e4e2;
}

.nav-tabs .nav-link {
    border: none;
    color: #6b756f;
    font-weight: 600;
    font-size: 0.9rem;
}

.nav-tabs .nav-link.active {
    color: var(--aod-primary);
    border-bottom: 2px solid var(--aod-primary);
    background: transparent;
}

.card-title-main {
    text-transform: uppercase;
    text-align: center;
    font-weight: 700;
    letter-spacing: 0.06em;
    color: var(--aod-primary);
    margin-bottom: 1.5rem;
}

.btn-aod-primary {
    background-color: var(--aod-primary);
    border-color: var(--aod-primary);
    color: #fff;
}
.btn-aod-primary:hover, .btn-aod-primary:focus {
    background-color: var(--aod-primary-dark);
    border-color: var(--aod-primary-dark);
    color: #fff;
}

.btn-aod-secondary {
    background-color: #6C757D;
    border-color: #6C757D;
    color: #fff;
}
.btn-aod-secondary:hover, .btn-aod-secondary:focus {
    background-color: #545b62;
    border-color: #545b62;
    color: #fff;
}

.btn-aod-danger {
    background-color: var(--aod-danger);
    border-color: var(--aod-danger);
    color: #fff;
}
.btn-aod-danger:hover, .btn-aod-danger:focus {
    background-color: #8f1e18;
    border-color: #8f1e18;
    color: #fff;
}

/* ---------- Sidebar layout ---------- */
.aod-shell {
    display: flex;
    min-height: 100vh;
}

.aod-sidebar {
    width: var(--aod-sidebar-width);
    background-color: var(--aod-primary);
    color: #fff;
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    overflow-y: auto;
    z-index: 1030;
    transition: transform 0.2s ease-in-out;
}

.aod-sidebar .logo-area {
    padding: 1.5rem 1rem;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.15);
}

.aod-sidebar .logo-area img {
    max-width: 100%;
    max-height: 64px;
}

.aod-sidebar .logo-placeholder {
    font-weight: 800;
    font-size: 1.1rem;
    letter-spacing: 0.05em;
    color: #fff;
}

.aod-sidebar nav {
    flex: 1;
    padding: 1rem 0;
}

.aod-sidebar .nav-link {
    color: rgba(255,255,255,0.85);
    padding: 0.75rem 1.5rem;
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-weight: 500;
    border-left: 3px solid transparent;
}

.aod-sidebar .nav-link:hover {
    background-color: rgba(255,255,255,0.08);
    color: #fff;
}

.aod-sidebar .nav-link.active {
    background-color: rgba(255,255,255,0.12);
    border-left-color: var(--aod-accent);
    color: #fff;
}

.aod-sidebar .logout-area {
    padding: 1rem 1.5rem;
    border-top: 1px solid rgba(255,255,255,0.15);
}

.aod-main {
    flex: 1;
    margin-left: var(--aod-sidebar-width);
    padding: 1.5rem;
    width: 100%;
}

.aod-topbar {
    display: none;
    grid-template-columns: 2.5rem 1fr 2.5rem;
    align-items: center;
    background-color: var(--aod-primary);
    color: #fff;
    padding: 0.65rem 1rem;
    position: sticky;
    top: 0;
    z-index: 1020;
    box-shadow: 0 2px 10px rgba(0, 0, 0, 0.15);
}

.aod-topbar-btn {
    background: none;
    border: none;
    color: #fff;
    font-size: 1.5rem;
    justify-self: start;
    line-height: 1;
    padding: 0.25rem;
}

.aod-topbar-logo {
    height: 32px;
    justify-self: center;
}

.aod-sidebar-backdrop {
    display: none;
}

.aod-push-banner {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    background-color: var(--aod-primary-light);
    color: #fff;
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    position: sticky;
    top: 0;
    z-index: 1015;
}

.aod-push-banner .btn-close {
    filter: invert(1) grayscale(100%) brightness(200%);
    opacity: 0.85;
}

@media (max-width: 991.98px) {
    .aod-sidebar {
        transform: translateX(-100%);
    }
    .aod-sidebar.open {
        transform: translateX(0);
    }
    .aod-main {
        margin-left: 0;
    }
    .aod-topbar {
        display: grid;
    }
    .aod-sidebar-backdrop {
        display: block;
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.5);
        z-index: 1025;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.2s ease-in-out;
    }
    .aod-sidebar-backdrop.show {
        opacity: 1;
        pointer-events: auto;
    }
}

@media (max-width: 575.98px) {
    .aod-main {
        padding: 0.85rem;
    }
    .card-body {
        padding: 1rem;
    }
    .card-title-main {
        font-size: 1.1rem !important;
    }
}

/* ---------- Predmeti list row hover ---------- */
.aod-row-link {
    cursor: pointer;
    transition: background-color 0.15s ease-in-out;
}
.aod-row-link:hover {
    background-color: rgba(43, 74, 63, 0.06);
}

/* ---------- Login screen ---------- */
.aod-login-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(160deg, var(--aod-primary) 0%, var(--aod-primary-dark) 100%);
}

.aod-login-card {
    max-width: 380px;
    width: 100%;
}

[x-cloak] { display: none !important; }

/* ---------- Kalendar ---------- */
.aod-calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, minmax(0, 1fr));
    gap: 0.5rem;
}

.aod-calendar-cell {
    border: 1px solid #dee2e6;
    border-radius: 0.5rem;
    padding: 0.75rem;
    min-height: 130px;
}

@media (max-width: 767.98px) {
    .aod-calendar-grid { gap: 0.25rem; }
    .aod-calendar-cell { min-height: 72px; padding: 0.35rem 0.2rem; font-size: 0.75rem; }
}

@media (max-width: 575.98px) {
    .aod-calendar-grid { gap: 2px; }
    .aod-calendar-cell { min-height: 52px; padding: 0.2rem; font-size: 0.65rem; border-radius: 0.3rem; }
    .aod-calendar-cell .fs-5 { font-size: 0.85rem !important; }
    .aod-calendar-cell .gap-2 { gap: 2px !important; }
    .aod-calendar-cell .rounded-circle { width: 6px !important; height: 6px !important; }
}

/* ---------- Scroll-abilni tabovi (kartice u predmetu) na malim ekranima ---------- */
.aod-scroll-tabs {
    flex-wrap: nowrap;
    overflow-x: auto;
    overflow-y: hidden;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
}
.aod-scroll-tabs .nav-item {
    flex-shrink: 0;
}
.aod-scroll-tabs .nav-link {
    white-space: nowrap;
}

/* ---------- Mobilne kartice (zamjena za tabele na malim ekranima) ---------- */
.aod-mobile-card {
    display: block;
    border: 1px solid #eceeec;
    border-left: 3px solid var(--aod-primary-light);
    border-radius: 0.7rem;
    padding: 0.9rem 1rem;
    margin-bottom: 0.7rem;
    background: #fff;
    color: inherit;
    text-decoration: none;
    box-shadow: var(--aod-shadow);
    transition: box-shadow 0.15s ease-in-out, transform 0.15s ease-in-out, background-color 0.15s ease-in-out;
}
.aod-mobile-card:hover {
    box-shadow: var(--aod-shadow-hover);
}
.aod-mobile-card:active {
    background-color: rgba(43, 74, 63, 0.05);
    transform: scale(0.995);
    color: inherit;
}

/* ---------- Print documents ---------- */
@media print {
    .no-print { display: none !important; }
    body { background: #fff; }
}