:root {
    --bg-primary: #0f1923;
    --bg-secondary: #1a2733;
    --bg-card: #1e2d3d;
    --bg-input: #253545;
    --accent: #00d4aa;
    --accent-hover: #00b894;
    --text-primary: #e8edf2;
    --text-secondary: #8899aa;
    --border: #2a3a4a;
    --danger: #e74c3c;
    --warning: #f39c12;
    --success: #00d4aa;
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
}

/* ── Auth Pages ── */

.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 2rem;
}

.auth-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 3rem;
    width: 100%;
    max-width: 420px;
}

.auth-logo {
    text-align: center;
    margin-bottom: 2rem;
}

.auth-logo h1 {
    font-size: 1.8rem;
    font-weight: 700;
    letter-spacing: 3px;
    color: var(--accent);
    margin: 0;
}

.auth-logo p {
    color: var(--text-secondary);
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

/* ── Layout ── */

.app-layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 250px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border);
    padding: 1.5rem 0;
    display: flex;
    flex-direction: column;
    position: fixed;
    top: 0;
    left: 0;
    bottom: 0;
    z-index: 100;
}

.sidebar-brand {
    padding: 0 1.5rem 1.5rem;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1rem;
}

.sidebar-brand h2 {
    font-size: 1.3rem;
    font-weight: 700;
    letter-spacing: 2px;
    color: var(--accent);
    margin: 0;
}

.sidebar-brand small {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

.sidebar-nav {
    flex: 1;
    padding: 0.5rem 0;
}

.sidebar-nav a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-nav a:hover,
.sidebar-nav a.active {
    color: var(--text-primary);
    background: rgba(0, 212, 170, 0.08);
    border-left-color: var(--accent);
}

.sidebar-nav a svg {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-toggle {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1.5rem;
    width: 100%;
    background: none;
    border: none;
    border-left: 3px solid transparent;
    color: var(--text-secondary);
    font-size: 0.9rem;
    font-family: inherit;
    cursor: pointer;
    transition: all 0.2s;
    text-align: left;
}

.sidebar-toggle:hover {
    color: var(--text-primary);
    background: rgba(0, 212, 170, 0.08);
    border-left-color: var(--accent);
}

.sidebar-toggle.open {
    color: var(--text-primary);
}

.sidebar-toggle svg:first-child {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.sidebar-chevron {
    width: 16px;
    height: 16px;
    margin-left: auto;
    transition: transform 0.2s;
}

.sidebar-toggle.open .sidebar-chevron {
    transform: rotate(180deg);
}

.sidebar-submenu {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.25s ease;
}

.sidebar-submenu.open {
    max-height: 200px;
}

.sidebar-submenu a {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.6rem 1.5rem 0.6rem 3.25rem;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.85rem;
    transition: all 0.2s;
    border-left: 3px solid transparent;
}

.sidebar-submenu a:hover,
.sidebar-submenu a.active {
    color: var(--text-primary);
    background: rgba(0, 212, 170, 0.08);
    border-left-color: var(--accent);
}

.sidebar-divider {
    height: 1px;
    background: var(--border);
    margin: 0.5rem 1.5rem;
}

.sidebar-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
}

.sidebar-footer .user-info {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.sidebar-footer .user-name {
    font-size: 0.85rem;
    color: var(--text-primary);
}

.sidebar-footer .logout-btn {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.8rem;
    padding: 0.3rem 0.6rem;
    border-radius: 6px;
    transition: all 0.2s;
}

.sidebar-footer .logout-btn:hover {
    color: var(--danger);
    background: rgba(231, 76, 60, 0.1);
}

.main-content {
    flex: 1;
    margin-left: 250px;
    padding: 2rem;
}

/* ── Page Header ── */

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 1.5rem;
    font-weight: 600;
    margin: 0;
}

/* ── Cards ── */

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
}

.stat-card .stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 0.5rem;
}

.stat-card .stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent);
}

.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.card-title {
    font-size: 1rem;
    font-weight: 600;
    margin: 0 0 1rem;
    color: var(--text-primary);
}

/* ── Tables ── */

.table-wrapper {
    overflow-x: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.88rem;
}

thead th {
    text-align: left;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}

tbody td {
    padding: 0.75rem 1rem;
    border-bottom: 1px solid rgba(42, 58, 74, 0.5);
    vertical-align: middle;
}

tbody tr:hover {
    background: rgba(0, 212, 170, 0.04);
}

.text-money {
    font-variant-numeric: tabular-nums;
    font-weight: 500;
}

.text-pct {
    font-variant-numeric: tabular-nums;
    color: var(--accent);
    font-weight: 500;
}

/* ── Forms ── */

.form-group {
    margin-bottom: 1.25rem;
}

.form-group label {
    display: block;
    font-size: 0.82rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
    font-weight: 500;
}

.form-control {
    width: 100%;
    padding: 0.65rem 0.9rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    color: var(--text-primary);
    font-size: 0.9rem;
    transition: border-color 0.2s;
    outline: none;
}

.form-control:focus {
    border-color: var(--accent);
}

.form-control::placeholder {
    color: var(--text-secondary);
    opacity: 0.6;
}

textarea.form-control {
    min-height: 100px;
    resize: vertical;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.form-row-3 {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
}

.computed-field {
    background: rgba(0, 212, 170, 0.08);
    border: 1px dashed var(--accent);
    border-radius: 8px;
    padding: 0.65rem 0.9rem;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9rem;
}

/* ── Buttons ── */

.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.2rem;
    border: none;
    border-radius: 8px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.2s;
}

.btn-primary {
    background: var(--accent);
    color: var(--bg-primary);
}

.btn-primary:hover {
    background: var(--accent-hover);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border: 1px solid var(--border);
}

.btn-secondary:hover {
    background: var(--border);
}

.btn-danger {
    background: transparent;
    color: var(--danger);
    border: 1px solid var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: white;
}

.btn-sm {
    padding: 0.35rem 0.7rem;
    font-size: 0.8rem;
}

.btn-icon {
    padding: 0.4rem;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 6px;
}

.btn-icon:hover {
    color: var(--text-primary);
    background: var(--bg-input);
}

.actions {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

/* ── Alerts ── */

.alert {
    padding: 0.75rem 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    border: 1px solid;
}

.alert-success {
    background: rgba(0, 212, 170, 0.1);
    border-color: rgba(0, 212, 170, 0.3);
    color: var(--success);
}

.alert-danger {
    background: rgba(231, 76, 60, 0.1);
    border-color: rgba(231, 76, 60, 0.3);
    color: var(--danger);
}

.alert-warning {
    background: rgba(243, 156, 18, 0.1);
    border-color: rgba(243, 156, 18, 0.3);
    color: var(--warning);
}

.alert-info {
    background: rgba(52, 152, 219, 0.1);
    border-color: rgba(52, 152, 219, 0.3);
    color: #3498db;
}

/* ── Search ── */

.search-bar {
    display: flex;
    gap: 0.5rem;
    max-width: 350px;
}

.search-bar .form-control {
    flex: 1;
}

/* ── Empty State ── */

.empty-state {
    text-align: center;
    padding: 3rem 1rem;
    color: var(--text-secondary);
}

.empty-state p {
    margin: 0.5rem 0;
}

/* ── Badge ── */

.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    font-size: 0.72rem;
    font-weight: 600;
    background: rgba(0, 212, 170, 0.15);
    color: var(--accent);
}

/* ── Pricing Steps ── */

.pricing-step {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.pricing-label {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.pricing-value {
    font-size: 1.3rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
}

.pricing-value.pricing-highlight {
    color: var(--accent);
}

.pricing-final {
    background: rgba(0, 212, 170, 0.1);
    border-color: var(--accent);
}

.pricing-final .pricing-value {
    color: var(--accent);
    font-size: 1.5rem;
}

/* ── Next Step Banner ── */

.next-step-banner {
    position: fixed;
    bottom: 0;
    left: 250px;
    right: 0;
    z-index: 90;
    padding: 1rem 2rem;
    background: var(--bg-secondary);
    border-top: 1px solid var(--accent);
    box-shadow: 0 -4px 20px rgba(0, 212, 170, 0.15);
    animation: slideUp 0.3s ease;
}

.next-step-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1200px;
    margin: 0 auto;
}

.next-step-inner span {
    color: var(--text-secondary);
    font-size: 0.9rem;
}

@keyframes slideUp {
    from { transform: translateY(100%); opacity: 0; }
    to { transform: translateY(0); opacity: 1; }
}

@media (max-width: 768px) {
    .next-step-banner { left: 60px; }
}

/* ── Responsive ── */

@media (max-width: 768px) {
    .sidebar {
        width: 60px;
        overflow: hidden;
    }

    .sidebar-brand h2,
    .sidebar-brand small,
    .sidebar-nav a span,
    .sidebar-footer .user-name {
        display: none;
    }

    .sidebar-nav a {
        justify-content: center;
        padding: 0.75rem;
    }

    .main-content {
        margin-left: 60px;
    }

    .form-row, .form-row-3 {
        grid-template-columns: 1fr;
    }

    .page-header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
}

/* ── Modal confirm ── */
.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 999;
}
.modal-backdrop.show { display: flex; }
.modal-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 2rem;
    max-width: 400px;
    width: 90%;
    text-align: center;
}
.modal-box p { margin: 0 0 1.5rem; }
.modal-box .actions { justify-content: center; }