/* ============================================================
   MiBalanceSAT - Apple-inspired Design System
   ============================================================ */

:root {
    --mbs-accent: #4F46E5;
    --mbs-accent-hover: #4338CA;
    --mbs-accent-light: #818CF8;
    --mbs-accent-subtle: rgba(79, 70, 229, 0.08);

    --mbs-bg: #F5F5F7;
    --mbs-surface: rgba(255, 255, 255, 0.72);
    --mbs-surface-solid: #ffffff;
    --mbs-border: rgba(0, 0, 0, 0.06);
    --mbs-border-strong: rgba(0, 0, 0, 0.1);

    --mbs-text: #1D1D1F;
    --mbs-text-secondary: #6E6E73;
    --mbs-text-tertiary: #86868B;

    --mbs-success: #059669;
    --mbs-success-subtle: rgba(5, 150, 105, 0.08);
    --mbs-danger: #DC2626;
    --mbs-danger-subtle: rgba(220, 38, 38, 0.08);
    --mbs-warning: #D97706;
    --mbs-warning-subtle: rgba(217, 119, 6, 0.08);
    --mbs-info: #0891B2;
    --mbs-info-subtle: rgba(8, 145, 178, 0.08);

    --mbs-radius: 1rem;
    --mbs-radius-sm: 0.625rem;
    --mbs-radius-lg: 1.25rem;
    --mbs-radius-pill: 100px;

    --mbs-shadow-xs: 0 1px 2px rgba(0, 0, 0, 0.04);
    --mbs-shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.02);
    --mbs-shadow-md: 0 4px 24px rgba(0, 0, 0, 0.06), 0 1px 2px rgba(0, 0, 0, 0.03);
    --mbs-shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.08), 0 2px 4px rgba(0, 0, 0, 0.02);
    --mbs-shadow-accent: 0 4px 16px rgba(79, 70, 229, 0.24);

    --mbs-blur: blur(20px);
    --mbs-transition: 0.2s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

/* --- Base --- */
html {
    font-size: 15px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    background-color: var(--mbs-bg);
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, "SF Pro Display", "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    color: var(--mbs-text);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
    letter-spacing: -0.01em;
}

main { flex: 1; }

h1, h2, h3, h4, h5, h6 {
    font-weight: 600;
    letter-spacing: -0.025em;
    color: var(--mbs-text);
}

a {
    color: var(--mbs-accent);
    text-decoration: none;
    transition: color var(--mbs-transition);
}

a:hover {
    color: var(--mbs-accent-hover);
}

/* --- Translucent Navbar --- */
.mbs-navbar {
    background: rgba(255, 255, 255, 0.82);
    backdrop-filter: saturate(180%) var(--mbs-blur);
    -webkit-backdrop-filter: saturate(180%) var(--mbs-blur);
    border-bottom: 1px solid var(--mbs-border);
    padding: 0.5rem 0;
    transition: background var(--mbs-transition);
}

.mbs-navbar .navbar-brand {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--mbs-text) !important;
}

.mbs-navbar .navbar-brand i {
    color: var(--mbs-accent);
}

.mbs-navbar .nav-link {
    color: var(--mbs-text-secondary) !important;
    font-weight: 500;
    font-size: 0.9rem;
    padding: 0.5rem 0.85rem !important;
    border-radius: var(--mbs-radius-sm);
    transition: all var(--mbs-transition);
}

.mbs-navbar .nav-link:hover,
.mbs-navbar .nav-link.active {
    color: var(--mbs-accent) !important;
    background: var(--mbs-accent-subtle);
}

.mbs-navbar .navbar-toggler {
    border: 1px solid var(--mbs-border);
    border-radius: var(--mbs-radius-sm);
    padding: 0.35rem 0.65rem;
}

.mbs-navbar .navbar-toggler-icon {
    filter: none;
    background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='%236E6E73' stroke-linecap='round' stroke-miterlimit='10' stroke-width='2' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
}

.mbs-navbar .dropdown-menu {
    background: var(--mbs-surface-solid);
    border: 1px solid var(--mbs-border);
    border-radius: var(--mbs-radius);
    box-shadow: var(--mbs-shadow-lg);
    padding: 0.5rem;
    margin-top: 0.5rem;
}

.mbs-navbar .dropdown-item {
    border-radius: var(--mbs-radius-sm);
    padding: 0.5rem 0.85rem;
    font-size: 0.9rem;
    color: var(--mbs-text-secondary);
    transition: all var(--mbs-transition);
}

.mbs-navbar .dropdown-item:hover {
    background: var(--mbs-accent-subtle);
    color: var(--mbs-accent);
}

.mbs-navbar .dropdown-divider {
    border-color: var(--mbs-border);
    margin: 0.35rem 0;
}

/* --- Glass Card --- */
.card {
    background: var(--mbs-surface);
    backdrop-filter: var(--mbs-blur);
    -webkit-backdrop-filter: var(--mbs-blur);
    border: 1px solid rgba(255, 255, 255, 0.5);
    border-radius: var(--mbs-radius);
    box-shadow: var(--mbs-shadow-sm);
    transition: box-shadow var(--mbs-transition), transform var(--mbs-transition);
}

.card:hover {
    box-shadow: var(--mbs-shadow-md) !important;
}

.card-header {
    background: transparent !important;
    border-bottom: 1px solid var(--mbs-border) !important;
    padding: 1rem 1.25rem;
}

.card-header h5,
.card-header h6 {
    font-weight: 600;
    font-size: 0.95rem;
    margin-bottom: 0;
}

.card-body {
    padding: 1.25rem;
}

.card-footer {
    background: transparent !important;
    border-top: 1px solid var(--mbs-border) !important;
}

.card-animated {
    animation: fadeSlideUp 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94) both;
}

.card-animated:nth-child(1) { animation-delay: 0s; }
.card-animated:nth-child(2) { animation-delay: 0.06s; }
.card-animated:nth-child(3) { animation-delay: 0.12s; }
.card-animated:nth-child(4) { animation-delay: 0.18s; }

@keyframes fadeSlideUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* --- Buttons --- */
.btn {
    border-radius: var(--mbs-radius-sm);
    font-weight: 500;
    padding: 0.5rem 1.15rem;
    font-size: 0.9rem;
    transition: all var(--mbs-transition);
    letter-spacing: -0.01em;
    border: none;
}

.btn-primary {
    background: var(--mbs-accent);
    color: #fff;
}

.btn-primary:hover, .btn-primary:focus {
    background: var(--mbs-accent-hover);
    transform: translateY(-1px);
    box-shadow: var(--mbs-shadow-accent);
}

.btn-outline-primary {
    color: var(--mbs-accent);
    border: 1.5px solid var(--mbs-accent);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--mbs-accent);
    color: #fff;
    transform: translateY(-1px);
    box-shadow: var(--mbs-shadow-accent);
}

.btn-outline-secondary {
    color: var(--mbs-text-secondary);
    border: 1.5px solid var(--mbs-border-strong);
    background: transparent;
}

.btn-outline-secondary:hover {
    background: var(--mbs-surface-solid);
    color: var(--mbs-text);
    border-color: var(--mbs-border-strong);
    box-shadow: var(--mbs-shadow-sm);
}

.btn-success {
    background: var(--mbs-success);
    color: #fff;
}

.btn-success:hover {
    background: #047857;
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(5, 150, 105, 0.24);
}

.btn-outline-success {
    color: var(--mbs-success);
    border: 1.5px solid var(--mbs-success);
    background: transparent;
}

.btn-outline-success:hover {
    background: var(--mbs-success);
    color: #fff;
}

.btn-outline-danger {
    color: var(--mbs-danger);
    border: 1.5px solid rgba(220, 38, 38, 0.3);
    background: transparent;
}

.btn-outline-danger:hover {
    background: var(--mbs-danger);
    color: #fff;
}

.btn-lg {
    padding: 0.7rem 1.75rem;
    font-size: 1rem;
    border-radius: var(--mbs-radius);
}

.btn-sm {
    padding: 0.35rem 0.85rem;
    font-size: 0.8rem;
}

.btn .spinner-border-sm {
    width: 1rem;
    height: 1rem;
    border-width: 0.15em;
}

.rounded-pill { border-radius: var(--mbs-radius-pill) !important; }

/* --- Forms --- */
.form-control,
.form-select {
    border: 1.5px solid var(--mbs-border-strong);
    border-radius: var(--mbs-radius-sm);
    padding: 0.6rem 1rem;
    font-size: 0.9rem;
    color: var(--mbs-text);
    background: var(--mbs-surface-solid);
    transition: border-color var(--mbs-transition), box-shadow var(--mbs-transition);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--mbs-accent-light);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
    outline: none;
}

.form-control::placeholder {
    color: var(--mbs-text-tertiary);
}

.form-label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--mbs-text-secondary);
    margin-bottom: 0.4rem;
}

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

/* --- Badges --- */
.badge {
    font-weight: 500;
    padding: 0.35em 0.75em;
    border-radius: var(--mbs-radius-pill);
    font-size: 0.78rem;
    letter-spacing: 0;
}

.bg-primary { background-color: var(--mbs-accent) !important; }
.bg-success { background-color: var(--mbs-success) !important; }
.bg-danger { background-color: var(--mbs-danger) !important; }
.bg-warning { background-color: var(--mbs-warning) !important; color: #fff !important; }

.bg-success-subtle { background-color: var(--mbs-success-subtle) !important; }
.bg-danger-subtle { background-color: var(--mbs-danger-subtle) !important; }
.bg-warning-subtle { background-color: var(--mbs-warning-subtle) !important; }
.bg-secondary-subtle { background-color: rgba(110, 110, 115, 0.08) !important; }
.bg-info-subtle { background-color: var(--mbs-info-subtle) !important; }

.text-success { color: var(--mbs-success) !important; }
.text-danger { color: var(--mbs-danger) !important; }
.text-warning { color: var(--mbs-warning) !important; }
.text-primary { color: var(--mbs-accent) !important; }
.text-muted { color: var(--mbs-text-secondary) !important; }

/* --- Tables --- */
.table {
    color: var(--mbs-text);
    font-size: 0.9rem;
}

.table > thead {
    border-bottom: 1.5px solid var(--mbs-border-strong);
}

.table > thead th {
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.04em;
    color: var(--mbs-text-tertiary);
    padding: 0.85rem 1rem;
    background: transparent;
    border: none;
}

.table > tbody > tr {
    border-bottom: 1px solid var(--mbs-border);
    transition: background var(--mbs-transition);
}

.table > tbody > tr:last-child {
    border-bottom: none;
}

.table > tbody td {
    padding: 0.85rem 1rem;
    vertical-align: middle;
    border: none;
}

.table-hover > tbody > tr:hover {
    background-color: rgba(79, 70, 229, 0.03);
}

.table-hover tbody tr[role="button"] { cursor: pointer; }

.table-light th { background: transparent !important; }

.text-truncate { max-width: 200px; display: inline-block; vertical-align: middle; }

/* --- Alerts --- */
.alert {
    border: none;
    border-radius: var(--mbs-radius);
    font-size: 0.9rem;
    padding: 1rem 1.25rem;
}

.alert-success {
    background: var(--mbs-success-subtle);
    color: var(--mbs-success);
}

.alert-danger {
    background: var(--mbs-danger-subtle);
    color: var(--mbs-danger);
}

.alert-warning {
    background: var(--mbs-warning-subtle);
    color: #92400E;
}

.alert-info {
    background: var(--mbs-info-subtle);
    color: #0E7490;
}

/* --- Modals --- */
.modal-content {
    background: var(--mbs-surface-solid);
    border: 1px solid var(--mbs-border);
    border-radius: var(--mbs-radius-lg);
    box-shadow: var(--mbs-shadow-lg);
}

.modal-header {
    border-bottom: 1px solid var(--mbs-border);
    padding: 1.25rem;
}

.modal-footer {
    border-top: 1px solid var(--mbs-border);
    padding: 1.25rem;
}

/* --- Step Indicators --- */
.step-indicator {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.15rem;
    border-radius: var(--mbs-radius-pill);
    background: rgba(0, 0, 0, 0.04);
    color: var(--mbs-text-tertiary);
    font-size: 0.85rem;
    font-weight: 500;
    transition: all var(--mbs-transition);
}

.step-indicator.active {
    background: var(--mbs-accent);
    color: #fff;
    box-shadow: var(--mbs-shadow-accent);
}

.step-number {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    font-weight: 600;
    font-size: 0.75rem;
}

/* --- Empty States --- */
.empty-state-icon {
    width: 100px;
    height: 100px;
    margin: 0 auto 1.5rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--mbs-accent-subtle);
}

.empty-state-icon i {
    font-size: 2.5rem;
    color: var(--mbs-accent-light);
}

/* --- Toast Styling --- */
.toast {
    border-radius: var(--mbs-radius);
    font-size: 0.9rem;
    box-shadow: var(--mbs-shadow-lg);
    border: 1px solid var(--mbs-border);
}

/* --- Pagination --- */
.pagination .page-link {
    border: none;
    color: var(--mbs-text-secondary);
    font-size: 0.85rem;
    font-weight: 500;
    padding: 0.4rem 0.75rem;
    border-radius: var(--mbs-radius-sm);
    margin: 0 0.1rem;
    transition: all var(--mbs-transition);
}

.pagination .page-link:hover {
    background: var(--mbs-accent-subtle);
    color: var(--mbs-accent);
}

.pagination .page-item.active .page-link {
    background: var(--mbs-accent);
    color: #fff;
    box-shadow: var(--mbs-shadow-accent);
}

/* --- List Groups --- */
.list-group-flush .list-group-item {
    border-color: var(--mbs-border);
    padding: 0.85rem 1.25rem;
    background: transparent;
}

/* --- Footer --- */
.mbs-footer {
    background: var(--mbs-surface);
    backdrop-filter: var(--mbs-blur);
    -webkit-backdrop-filter: var(--mbs-blur);
    border-top: 1px solid var(--mbs-border);
    padding: 2.5rem 0;
    margin-top: auto;
}

.mbs-footer .footer-brand {
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--mbs-text);
    letter-spacing: -0.02em;
}

.mbs-footer .footer-brand i {
    color: var(--mbs-accent);
}

.mbs-footer p,
.mbs-footer a {
    color: var(--mbs-text-secondary);
    font-size: 0.85rem;
}

.mbs-footer a:hover {
    color: var(--mbs-accent);
}

.mbs-footer h6 {
    font-size: 0.75rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--mbs-text-tertiary);
    margin-bottom: 0.75rem;
}

/* --- Utility: glass-card variant --- */
.glass-card {
    background: var(--mbs-surface);
    backdrop-filter: var(--mbs-blur);
    -webkit-backdrop-filter: var(--mbs-blur);
    border: 1px solid rgba(255, 255, 255, 0.4);
    border-radius: var(--mbs-radius);
    box-shadow: var(--mbs-shadow-sm);
}

/* --- Section backgrounds --- */
.mbs-hero-bg {
    background: linear-gradient(135deg, #EEF2FF 0%, #F5F5F7 40%, #FDF2F8 100%);
    position: relative;
    overflow: hidden;
}

.mbs-hero-bg::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(79, 70, 229, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.mbs-hero-bg::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(236, 72, 153, 0.05) 0%, transparent 70%);
    pointer-events: none;
}

/* --- Responsive Utility Classes --- */

.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    margin-bottom: 1.5rem;
}

.btn-group-stack {
    display: flex;
    justify-content: center;
    gap: 0.75rem;
    flex-wrap: wrap;
}

.table-cell-truncate {
    max-width: 200px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* --- Responsive: Tablet (<=992px) --- */
@media (max-width: 991.98px) {
    main.container-fluid { padding-left: 1.25rem; padding-right: 1.25rem; }
}

/* --- Responsive: Small Tablet (<=768px) --- */
@media (max-width: 768px) {
    html { font-size: 14px; }
    .container-fluid { padding-left: 1rem; padding-right: 1rem; }
    main.container-fluid.px-4 { padding-left: 1rem !important; padding-right: 1rem !important; }

    .card-body { padding: 1rem; }
    .card-header { padding: 0.85rem 1rem; }

    .mbs-navbar .navbar-collapse {
        background: var(--mbs-surface-solid);
        border-radius: var(--mbs-radius);
        padding: 0.75rem;
        margin-top: 0.5rem;
        box-shadow: var(--mbs-shadow-md);
        border: 1px solid var(--mbs-border);
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
    }

    .page-header .btn,
    .page-header > a {
        align-self: flex-start;
    }

    .btn-group-stack {
        flex-direction: column;
        width: 100%;
    }

    .btn-group-stack .btn {
        width: 100%;
    }

    .table > thead th { padding: 0.65rem 0.75rem; font-size: 0.72rem; }
    .table > tbody td { padding: 0.65rem 0.75rem; font-size: 0.85rem; }

    .table-cell-truncate { max-width: 140px; }

    .empty-state-icon { width: 80px; height: 80px; }
    .empty-state-icon i { font-size: 2rem; }

    .mbs-footer { padding: 1.75rem 0; }
    .mbs-footer .row { gap: 1.5rem; }

    .pagination { flex-wrap: wrap; gap: 0.25rem; }
    .pagination .page-link { padding: 0.35rem 0.6rem; font-size: 0.8rem; }
}

/* --- Responsive: Phone (<=576px) --- */
@media (max-width: 576px) {
    html { font-size: 13.5px; }
    h1 { font-size: 1.75rem; }
    h2 { font-size: 1.4rem; }
    h5 { font-size: 1.05rem; }
    .btn-lg { padding: 0.6rem 1.25rem; font-size: 0.92rem; }

    main.container-fluid.px-4 { padding-left: 0.75rem !important; padding-right: 0.75rem !important; }

    .card { border-radius: 0.75rem; }
    .card-body { padding: 0.85rem; }
    .card-header { padding: 0.75rem 0.85rem; }

    .empty-state-icon { width: 64px; height: 64px; margin-bottom: 1rem; }
    .empty-state-icon i { font-size: 1.6rem; }

    .step-indicator { padding: 0.4rem 0.75rem; font-size: 0.75rem; gap: 0.35rem; }
    .step-number { width: 1.25rem; height: 1.25rem; font-size: 0.65rem; }

    .modal-dialog { margin: 0.5rem; }
    .modal-content { border-radius: 0.85rem; }

    .display-6 { font-size: 1.5rem; }

    .table-cell-truncate { max-width: 100px; }

    .alert { padding: 0.85rem 1rem; font-size: 0.85rem; }
}