:root {
    --app-blue-dark: #1a3d7c;
    --app-blue-mid: #5a9fd4;
    --app-blue-light: #6eb5e8;
    --app-accent: #f5a623;
    --app-text-dark: #1a2a3a;
    --app-card-shadow: 0 20px 60px rgba(26, 61, 124, 0.25);
}

*, *::before, *::after { box-sizing: border-box; }

body.app-page,
body.login-page {
    min-height: 100vh;
    display: flex;
    margin: 0;
    font-family: 'Poppins', sans-serif;
    background: url('login-bg.png') no-repeat center center fixed;
    background-size: cover;
    color: var(--app-text-dark);
}

.app-sidebar,
.login-sidebar {
    width: 72px;
    min-height: 100vh;
    background: var(--app-blue-dark);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    position: relative;
    z-index: 3;
}

.app-sidebar span,
.login-sidebar span {
    writing-mode: vertical-rl;
    transform: rotate(180deg);
    color: #fff;
    font-weight: 700;
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    white-space: nowrap;
    padding: 1rem 0;
}

.app-shell {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    min-width: 0;
    position: relative;
    z-index: 1;
}

.app-topbar {
    background: var(--app-blue-dark);
    padding: 0.65rem 1.25rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
    box-shadow: 0 4px 20px rgba(26, 61, 124, 0.3);
}

.app-menu-toggle {
    display: none;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.35);
    border-radius: 8px;
    padding: 0.35rem 0.5rem;
    cursor: pointer;
}

.app-menu-toggle span {
    display: block;
    width: 20px;
    height: 2px;
    background: #fff;
    margin: 4px 0;
    border-radius: 1px;
}

.app-nav {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.15rem 0.35rem;
    flex: 1;
}

.app-nav a {
    color: rgba(255, 255, 255, 0.88);
    text-decoration: none;
    font-size: 0.82rem;
    font-weight: 500;
    padding: 0.4rem 0.65rem;
    border-radius: 8px;
    transition: background 0.2s, color 0.2s;
    white-space: nowrap;
}

.app-nav a:hover,
.app-nav a.active {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
}

.app-user {
    color: rgba(255, 255, 255, 0.75);
    font-size: 0.8rem;
    white-space: nowrap;
}

.app-main {
    flex: 1;
    overflow-y: auto;
    padding: 1.75rem 1.5rem 2rem;
}

.app-main--centered {
    display: flex;
    align-items: center;
    justify-content: center;
}

.app-card {
    background: linear-gradient(160deg, var(--app-blue-light) 0%, var(--app-blue-mid) 100%);
    border-radius: 22px;
    box-shadow: var(--app-card-shadow);
    margin-bottom: 1.5rem;
    overflow: visible;
}

.app-card-header {
    padding: 1rem 1.35rem;
    color: #fff;
    font-weight: 600;
    font-size: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.2);
}

.app-card-body {
    padding: 1.25rem 1.35rem;
    background: rgba(255, 255, 255, 0.92);
    border-radius: 0 0 22px 22px;
}

.app-card-body:has(+ .app-card-footer) {
    border-radius: 0;
}

.app-card-footer {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem 1rem;
    padding: 0.9rem 1.35rem 1.1rem;
    background: rgba(255, 255, 255, 0.96);
    border-top: 1px solid rgba(26, 61, 124, 0.12);
    border-radius: 0 0 22px 22px;
}

.app-stat-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.app-stat-card {
    background: linear-gradient(160deg, var(--app-blue-light) 0%, var(--app-blue-mid) 100%);
    border-radius: 18px;
    padding: 1.25rem 1.35rem;
    box-shadow: var(--app-card-shadow);
    color: #fff;
}

.app-stat-card h5 {
    font-size: 0.85rem;
    font-weight: 600;
    margin: 0 0 0.5rem;
    opacity: 0.95;
}

.app-stat-card .stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1;
    margin: 0;
}

.app-stat-card.stat-success {
    background: linear-gradient(160deg, #5cb88a 0%, #3d9a6e 100%);
}

.app-stat-card.stat-warning {
    background: linear-gradient(160deg, #f0b429 0%, #e09b1a 100%);
}

.app-grid-2 {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 1.5rem;
    align-items: start;
}

.app-muted {
    color: #6b7c8f;
    font-size: 0.875rem;
}

.app-table-wrap {
    overflow-x: auto;
}

.app-table-wrap.scrollable {
    max-height: 400px;
    overflow-y: auto;
}

.app-card-body .table {
    margin-bottom: 0;
    font-size: 0.875rem;
}

.app-card-body .table thead th {
    background: rgba(26, 61, 124, 0.08);
    color: var(--app-blue-dark);
    font-weight: 600;
    border-bottom-width: 1px;
}

.app-card-body .table td,
.app-card-body .table th {
    vertical-align: middle;
}

.app-form-row {
    display: flex;
    flex-wrap: wrap;
    align-items: flex-end;
    gap: 0.75rem;
    margin-bottom: 1rem;
}

.app-form-row label {
    display: block;
    font-size: 0.8rem;
    font-weight: 500;
    margin-bottom: 0.25rem;
    color: var(--app-blue-dark);
}

.app-form-row select,
.app-form-row input[type="text"],
.app-form-row input[type="password"],
.app-form-row input[type="number"],
.app-form-row input[type="date"] {
    padding: 0.5rem 0.75rem;
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.95);
    font-family: inherit;
    font-size: 0.875rem;
    color: #333;
    outline: none;
}

.app-form-row select:focus,
.app-form-row input:focus {
    box-shadow: 0 0 0 2px rgba(26, 61, 124, 0.25);
}

.app-btn {
    display: inline-block;
    padding: 0.5rem 1rem;
    border: none;
    border-radius: 10px;
    font-family: inherit;
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    transition: background 0.2s, transform 0.1s;
}

.app-btn-primary {
    background: var(--app-blue-dark);
    color: #fff;
}

.app-btn-primary:hover {
    background: #153266;
    color: #fff;
}

.app-btn-outline {
    background: rgba(255, 255, 255, 0.7);
    color: var(--app-blue-dark);
    border: 1px solid rgba(26, 61, 124, 0.25);
}

.app-btn-outline:hover {
    background: #fff;
    color: var(--app-blue-dark);
}

.app-btn-sm {
    padding: 0.35rem 0.65rem;
    font-size: 0.8rem;
}

.app-btn:active {
    transform: scale(0.98);
}

.app-btn:disabled {
    opacity: 0.55;
    cursor: not-allowed;
}

.app-list-item {
    padding: 0.75rem 0;
    border-bottom: 1px solid rgba(26, 61, 124, 0.1);
}

.app-list-item:last-child {
    border-bottom: none;
}

.app-list-item strong {
    color: var(--app-blue-dark);
}

/* Login page */
.login-card {
    width: 100%;
    max-width: 380px;
    background: linear-gradient(160deg, var(--app-blue-light) 0%, var(--app-blue-mid) 100%);
    border-radius: 28px;
    padding: 2.5rem 2rem 2rem;
    box-shadow: var(--app-card-shadow);
}

.login-card h1 {
    color: #fff;
    font-size: 1.75rem;
    font-weight: 700;
    margin: 0 0 1.75rem;
}

.login-field {
    margin-bottom: 1rem;
}

.login-field input {
    width: 100%;
    padding: 0.85rem 1.1rem;
    border: none;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.82);
    font-family: inherit;
    font-size: 0.9rem;
    color: #333;
    outline: none;
    transition: box-shadow 0.2s;
}

.login-field input::placeholder {
    color: #9aa8b8;
}

.login-field input:focus {
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.6);
}

.login-error {
    background: rgba(220, 53, 69, 0.15);
    border: 1px solid rgba(220, 53, 69, 0.4);
    color: #fff;
    font-size: 0.85rem;
    padding: 0.6rem 0.9rem;
    border-radius: 10px;
    margin-bottom: 1rem;
}

.login-btn {
    width: 100%;
    padding: 0.9rem;
    margin-top: 0.5rem;
    border: none;
    border-radius: 12px;
    background: var(--app-blue-dark);
    color: #fff;
    font-family: inherit;
    font-size: 0.95rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    cursor: pointer;
    transition: background 0.2s, transform 0.1s;
}

.login-btn:hover { background: #153266; }
.login-btn:active { transform: scale(0.98); }

.login-divider {
    text-align: center;
    color: var(--app-blue-dark);
    font-size: 0.8rem;
    margin: 1.5rem 0 1rem;
    font-weight: 500;
}

.social-btns {
    display: flex;
    gap: 0.75rem;
}

.social-btn {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.45rem;
    padding: 0.65rem 0.5rem;
    border: none;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.55);
    color: #3a7bc8;
    font-family: inherit;
    font-size: 0.82rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.social-btn:hover { background: rgba(255, 255, 255, 0.75); }
.social-btn svg { flex-shrink: 0; }

.login-footer {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.85rem;
    color: var(--app-text-dark);
}

.login-footer a {
    color: var(--app-accent);
    font-weight: 700;
    text-decoration: none;
}

.login-footer a:hover { text-decoration: underline; }

/* Bootstrap modal overrides */
.modal-backdrop {
    --bs-backdrop-opacity: 0.45;
    background-color: var(--app-blue-dark);
}

body.modal-open {
    overflow: hidden;
}

.modal {
    z-index: 1060;
}

.modal-backdrop {
    z-index: 1055;
}

.modal-content {
    border: none;
    border-radius: 18px;
    overflow: hidden;
}

.modal-header.app-modal-header {
    background: var(--app-blue-dark);
    color: #fff;
    border-bottom: none;
}

.modal-header.app-modal-header .btn-close {
    filter: invert(1);
}

.app-layout-split {
    display: grid;
    grid-template-columns: minmax(280px, 420px) 1fr;
    gap: 1.5rem;
    align-items: start;
}

.app-layout-center {
    max-width: 720px;
    margin: 0 auto;
}

.app-page-title {
    color: var(--app-blue-light);
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 0 1.25rem;
    text-shadow: 0 2px 8px rgba(26, 61, 124, 0.25);
}

.app-card-body .form-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--app-blue-dark);
}

.app-card-body .form-control,
.app-card-body .form-select,
.app-card-body textarea.form-control {
    border: none;
    border-radius: 10px;
    background: rgba(255, 255, 255, 0.95);
    font-family: inherit;
    font-size: 0.875rem;
}

.app-card-body .form-control:focus,
.app-card-body .form-select:focus,
.app-card-body textarea.form-control:focus {
    box-shadow: 0 0 0 2px rgba(26, 61, 124, 0.2);
    border-color: transparent;
}

.app-card-body .form-text {
    color: #6b7c8f;
    font-size: 0.8rem;
}

.app-page .btn-primary {
    background: var(--app-blue-dark);
    border-color: var(--app-blue-dark);
    border-radius: 10px;
    font-weight: 600;
}

.app-page .btn-primary:hover {
    background: #153266;
    border-color: #153266;
}

.app-page .btn-secondary {
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(26, 61, 124, 0.2);
    color: var(--app-blue-dark);
    border-radius: 10px;
    font-weight: 600;
}

.app-page .btn-outline-primary {
    color: var(--app-blue-dark);
    background: rgba(255, 255, 255, 0.9);
    border-color: rgba(26, 61, 124, 0.35);
    border-radius: 10px;
    font-weight: 600;
}

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

.app-page .btn-outline-secondary {
    border-radius: 10px;
    color: var(--app-blue-dark);
    background: rgba(255, 255, 255, 0.85);
    border-color: rgba(26, 61, 124, 0.25);
    font-weight: 600;
}

.app-page .btn-outline-secondary:hover,
.app-page .btn-outline-secondary:focus {
    background: rgba(26, 61, 124, 0.12);
    border-color: rgba(26, 61, 124, 0.35);
    color: var(--app-blue-dark);
}

.app-page .btn-outline-danger {
    border-radius: 10px;
}

.app-page .btn-danger {
    border-radius: 10px;
    font-weight: 600;
}

.app-page .btn-success {
    border-radius: 10px;
    font-weight: 600;
}

.app-page .alert {
    border-radius: 10px;
    font-size: 0.875rem;
}

.app-page .text-muted,
.app-muted {
    color: #6b7c8f !important;
}

.app-pagination .page-link {
    color: var(--app-blue-dark);
    border-radius: 8px;
    margin: 0 2px;
    border-color: rgba(26, 61, 124, 0.2);
    background: #fff;
    min-width: 2.1rem;
    text-align: center;
}

.app-pagination .page-item.active .page-link {
    background: var(--app-blue-dark);
    border-color: var(--app-blue-dark);
    color: #fff;
}

.app-pagination .page-item.disabled .page-link {
    opacity: 0.55;
    pointer-events: none;
}

.app-tabs {
    border-bottom: 2px solid rgba(255, 255, 255, 0.35);
    margin-bottom: 1.25rem;
    gap: 0.25rem;
}

.app-tabs .nav-link {
    color: rgba(255, 255, 255, 0.85);
    font-weight: 500;
    font-size: 0.875rem;
    border: none;
    border-radius: 10px 10px 0 0;
    padding: 0.6rem 1rem;
}

.app-tabs .nav-link:hover {
    color: #fff;
    background: rgba(255, 255, 255, 0.12);
}

.app-tabs .nav-link.active {
    color: var(--app-blue-dark);
    background: rgba(255, 255, 255, 0.92);
    font-weight: 600;
}

@media (max-width: 992px) {
    .app-grid-2,
    .app-layout-split {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 768px) {
    .app-menu-toggle {
        display: block;
    }

    .app-nav {
        display: none;
        width: 100%;
        flex-direction: column;
        align-items: stretch;
        padding-top: 0.5rem;
    }

    .app-nav.open {
        display: flex;
    }

    .app-nav a {
        padding: 0.55rem 0.75rem;
    }

    .app-topbar {
        flex-wrap: wrap;
    }

    .app-user {
        width: 100%;
        padding-top: 0.25rem;
        border-top: 1px solid rgba(255, 255, 255, 0.15);
    }
}

@media (max-width: 480px) {
    .app-sidebar,
    .login-sidebar { width: 48px; }

    .app-sidebar span,
    .login-sidebar span { font-size: 0.7rem; }

    .login-card {
        padding: 2rem 1.5rem 1.5rem;
        border-radius: 22px;
    }

    .social-btns { flex-direction: column; }

    .app-main { padding: 1.25rem 1rem 1.5rem; }
}