:root {
    --bs-primary: #4f46e5;
    --bs-primary-rgb: 79, 70, 229;
    --bs-link-color: #4f46e5;
    --bs-link-color-rgb: 79, 70, 229;
    --bs-link-hover-color: #4338ca;
    --bs-link-hover-color-rgb: 67, 56, 202;
    --bs-border-radius: 0.65rem;
    --bs-border-radius-sm: 0.5rem;
    --bs-border-radius-lg: 0.85rem;
    --bs-body-bg: #f4f5fb;
    --bs-body-font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

    --al-navbar-bg: #1e1b4b;
    --al-navbar-bg-alt: #3730a3;
}

body {
    background-color: var(--bs-body-bg);
}

/*
 * Bootstrap 5.3 bakes #0d6efd directly into several component-level
 * custom properties instead of referencing --bs-primary, so those
 * need explicit overrides to pick up the brand color.
 */
.btn-primary {
    --bs-btn-bg: var(--bs-primary);
    --bs-btn-border-color: var(--bs-primary);
    --bs-btn-hover-bg: #4338ca;
    --bs-btn-hover-border-color: #4338ca;
    --bs-btn-active-bg: #3730a3;
    --bs-btn-active-border-color: #3730a3;
    --bs-btn-disabled-bg: var(--bs-primary);
    --bs-btn-disabled-border-color: var(--bs-primary);
    --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}

.btn-outline-primary {
    --bs-btn-color: var(--bs-primary);
    --bs-btn-border-color: var(--bs-primary);
    --bs-btn-hover-bg: var(--bs-primary);
    --bs-btn-hover-border-color: var(--bs-primary);
    --bs-btn-active-bg: var(--bs-primary);
    --bs-btn-active-border-color: var(--bs-primary);
    --bs-btn-disabled-color: var(--bs-primary);
    --bs-btn-disabled-border-color: var(--bs-primary);
    --bs-btn-focus-shadow-rgb: var(--bs-primary-rgb);
}

.form-check-input:checked {
    background-color: var(--bs-primary);
    border-color: var(--bs-primary);
}

.page-item.active .page-link {
    --bs-pagination-active-bg: var(--bs-primary);
    --bs-pagination-active-border-color: var(--bs-primary);
}

.dropdown-item.active,
.dropdown-item:active {
    --bs-dropdown-link-active-bg: var(--bs-primary);
}

h1, h2, h3, h4, h5, h6 {
    font-weight: 700;
    letter-spacing: -0.01em;
}

/* Navbar */
.al-navbar {
    background: linear-gradient(135deg, var(--al-navbar-bg), var(--al-navbar-bg-alt));
    box-shadow: 0 2px 12px rgba(30, 27, 75, 0.25);
}

.al-navbar .navbar-brand {
    font-weight: 700;
    letter-spacing: -0.02em;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.al-navbar .nav-link {
    font-weight: 500;
    color: rgba(255, 255, 255, 0.85) !important;
    border-radius: var(--bs-border-radius-sm);
    padding: 0.5rem 0.85rem !important;
    transition: background-color .15s ease, color .15s ease;
}

.al-navbar .nav-link:hover,
.al-navbar .nav-link:focus,
.al-navbar .nav-link.show {
    color: #fff !important;
    background-color: rgba(255, 255, 255, 0.12);
}

.al-navbar .dropdown-menu {
    border: none;
    border-radius: var(--bs-border-radius);
    box-shadow: 0 10px 30px rgba(30, 27, 75, 0.18);
    padding: 0.5rem;
    margin-top: 0.5rem;
}

.al-navbar .dropdown-item {
    border-radius: var(--bs-border-radius-sm);
    padding: 0.5rem 0.75rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.al-navbar .dropdown-item:hover,
.al-navbar .dropdown-item:focus {
    background-color: rgba(79, 70, 229, 0.08);
    color: #4338ca;
}

.al-user-chip {
    color: rgba(255, 255, 255, 0.9);
    font-weight: 500;
}

/* Cards */
.card {
    border: none;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
}

/* Dashboard stat cards */
.al-stat-card {
    border-radius: var(--bs-border-radius-lg);
    padding: 1.1rem 1.25rem;
    background: #fff;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
    display: flex;
    align-items: center;
    gap: 1rem;
    height: 100%;
}

.al-stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    flex-shrink: 0;
    background-color: rgba(79, 70, 229, 0.1);
    color: var(--bs-primary);
}

.al-stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    line-height: 1.1;
}

.al-stat-label {
    color: #6b7280;
    font-size: 0.85rem;
}

/* Tables */
.table {
    background-color: #fff;
    border-collapse: separate;
    border-spacing: 0;
    border-radius: var(--bs-border-radius);
    overflow: hidden;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 1px 2px rgba(15, 23, 42, 0.04);
}

.table thead th {
    text-transform: uppercase;
    font-size: 0.72rem;
    letter-spacing: 0.04em;
    color: #6b7280;
    background-color: #f8fafc;
    border-bottom-width: 1px;
    font-weight: 600;
    padding-top: 0.85rem;
    padding-bottom: 0.85rem;
}

.table-striped > tbody > tr:hover > * {
    --bs-table-accent-bg: rgba(79, 70, 229, 0.06);
}

.al-row-inactive {
    background-color: #eceef2 !important;
    color: #6b7280;
}

.al-row-inactive:hover > * {
    --bs-table-accent-bg: #eceef2 !important;
}

/* Buttons */
.btn {
    font-weight: 500;
}

.btn-primary {
    box-shadow: 0 1px 2px rgba(79, 70, 229, 0.3);
}

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

/* Forms */
.form-control:focus,
.form-select:focus {
    border-color: rgba(79, 70, 229, 0.5);
    box-shadow: 0 0 0 0.25rem rgba(79, 70, 229, 0.15);
}

/* Auth pages */
.al-auth-card {
    border-radius: var(--bs-border-radius-lg);
    box-shadow: 0 20px 40px rgba(30, 27, 75, 0.12);
}

.al-auth-icon {
    width: 56px;
    height: 56px;
    border-radius: 16px;
    background: linear-gradient(135deg, var(--al-navbar-bg), var(--al-navbar-bg-alt));
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin: 0 auto 1rem;
}

/* Floating alerts */
.al-alert-container {
    position: fixed;
    top: 5rem;
    left: 1rem;
    z-index: 1080;
    width: calc(100% - 2rem);
    max-width: 380px;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.al-alert-container .al-alert {
    box-shadow: 0 10px 30px rgba(15, 23, 42, 0.18);
    transform: translateX(-130%);
    opacity: 0;
    transition: transform .35s ease, opacity .35s ease;
    margin-bottom: 0;
}

.al-alert-container .al-alert.al-alert-show {
    transform: translateX(0);
    opacity: 1;
}

/* FullCalendar */
.fc {
    --fc-button-bg-color: var(--bs-primary);
    --fc-button-border-color: var(--bs-primary);
    --fc-button-hover-bg-color: #4338ca;
    --fc-button-hover-border-color: #4338ca;
    --fc-button-active-bg-color: #3730a3;
    --fc-button-active-border-color: #3730a3;
    --fc-today-bg-color: rgba(79, 70, 229, 0.08);
    --fc-border-color: #e5e7eb;
    font-family: inherit;
}

.fc .fc-toolbar-title {
    font-size: 1.25rem;
    font-weight: 700;
}

.fc .fc-button {
    text-transform: capitalize;
    border-radius: var(--bs-border-radius-sm) !important;
    font-weight: 500;
    box-shadow: none !important;
}

.fc-event {
    cursor: pointer;
    border-radius: 6px;
    border: none;
    padding: 1px 4px;
}

.fc-event-title,
.fc-event-time {
    color: #fff;
}

/* Version badge */
.al-version-badge {
    position: fixed;
    right: 0.75rem;
    bottom: 0.5rem;
    font-size: 0.75rem;
    color: #9ca3af;
    background: rgba(255, 255, 255, 0.85);
    padding: 0.15rem 0.6rem;
    border-radius: var(--bs-border-radius-sm);
    pointer-events: none;
    z-index: 1;
}