:root {
    --color-bg: #f7f8fa;
    --color-card: #ffffff;
    --color-border: #e5e7eb;
    --color-text: #1f2430;
    --color-muted: #6b7280;
    --color-primary: #2563eb;
    --color-primary-soft: #eef2ff;
    --color-primary-text: #ffffff;
    --color-danger: #dc2626;
    --color-danger-soft: #fee2e2;
    --color-success: #16a34a;
    --color-success-soft: #dcfce7;
    --color-warning: #d97706;
    --color-warning-soft: #fef3c7;
    --radius: 10px;
    --radius-sm: 6px;
    --sidebar-width: 220px;
}

* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: var(--color-bg);
    color: var(--color-text);
}

.icon {
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.icon-inline {
    width: 16px;
    height: 16px;
    vertical-align: -3px;
    color: var(--color-muted);
}

a {
    color: var(--color-primary);
}

/* ---------- App shell / sidebar ---------- */

.app-shell {
    display: flex;
    min-height: 100vh;
    align-items: stretch;
}

.sidebar {
    width: var(--sidebar-width);
    flex-shrink: 0;
    background: var(--color-card);
    border-right: 1px solid var(--color-border);
    display: flex;
    flex-direction: column;
    padding: 20px 14px;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sidebar .brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.05rem;
    color: var(--color-text);
    text-decoration: none;
    padding: 6px 10px;
}

.sidebar .brand .icon {
    color: var(--color-primary);
}

.sidebar nav {
    margin-top: 24px;
    display: flex;
    flex-direction: column;
    gap: 2px;
    flex: 1;
}

.sidebar nav a,
.sidebar .logout-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 10px 12px;
    border-radius: var(--radius-sm);
    color: var(--color-muted);
    text-decoration: none;
    font-size: 0.92rem;
    font-weight: 500;
}

.sidebar nav a:hover,
.sidebar .logout-link:hover {
    background: var(--color-bg);
    color: var(--color-text);
}

.sidebar nav a.active {
    background: var(--color-primary-soft);
    color: var(--color-primary);
}

.sidebar .logout-link {
    margin-top: auto;
}

.main {
    flex: 1;
    min-width: 0;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px 28px 60px;
}

.container-narrow {
    max-width: 420px;
    margin: 60px auto;
}

.auth-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-primary);
    margin-bottom: 24px;
}

@media (max-width: 860px) {
    .app-shell {
        flex-direction: column;
    }

    .sidebar {
        position: static;
        height: auto;
        width: 100%;
        flex-direction: row;
        align-items: center;
        padding: 10px 14px;
        overflow-x: auto;
    }

    .sidebar .brand {
        padding: 6px 8px;
    }

    .sidebar nav {
        margin-top: 0;
        flex-direction: row;
        flex: 1;
        justify-content: flex-end;
    }

    .sidebar nav a,
    .sidebar .logout-link {
        padding: 8px;
    }

    .sidebar .nav-label {
        display: none;
    }

    .sidebar .logout-link {
        margin-top: 0;
    }

    .container {
        padding: 18px 16px 40px;
    }
}

/* ---------- Headings / page header ---------- */

h1 {
    font-size: 1.5rem;
    margin: 0 0 4px;
}

h2 {
    font-size: 1.05rem;
    margin: 0 0 12px;
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.page-header .actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

.page-header .actions form {
    margin: 0;
}

.page-header .actions input {
    width: auto;
    min-width: 200px;
    margin: 0;
}

.back-link {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.88rem;
    text-decoration: none;
    color: var(--color-muted);
    margin-bottom: 4px;
}

.back-link .icon {
    width: 16px;
    height: 16px;
    transform: rotate(180deg);
}

.back-link:hover {
    color: var(--color-primary);
}

/* ---------- Cards ---------- */

.card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 18px 20px;
    margin-bottom: 20px;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

@media (max-width: 720px) {
    .grid-2 {
        grid-template-columns: 1fr;
    }
}

/* ---------- Stat cards ---------- */

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 20px;
}

.stat-card {
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    padding: 16px;
    display: flex;
    align-items: center;
    gap: 14px;
}

.stat-icon {
    width: 42px;
    height: 42px;
    border-radius: var(--radius-sm);
    background: var(--color-primary-soft);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.stat-card.attention .stat-icon {
    background: var(--color-warning-soft);
    color: var(--color-warning);
}

.stat-content {
    display: flex;
    flex-direction: column;
    min-width: 0;
}

.stat-value {
    font-size: 1.4rem;
    font-weight: 700;
    line-height: 1.2;
}

.stat-label {
    color: var(--color-muted);
    font-size: 0.82rem;
}

/* ---------- Forms ---------- */

label {
    display: block;
    margin-bottom: 12px;
    font-size: 0.88rem;
    color: var(--color-muted);
}

input, select, textarea {
    display: block;
    width: 100%;
    margin-top: 4px;
    padding: 8px 10px;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--color-text);
    background: #fff;
}

input:focus, select:focus, textarea:focus {
    outline: 2px solid var(--color-primary-soft);
    border-color: var(--color-primary);
}

textarea {
    resize: vertical;
}

.help-text {
    margin: -6px 0 12px;
    font-size: 0.82rem;
    color: var(--color-muted);
}

/* ---------- Buttons ---------- */

button,
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    padding: 9px 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    background: var(--color-primary);
    color: var(--color-primary-text);
    font-size: 0.92rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    line-height: 1.3;
}

button:hover,
.btn:hover {
    opacity: 0.92;
    text-decoration: none;
}

.btn-secondary {
    background: #fff;
    border-color: var(--color-border);
    color: var(--color-text);
}

.btn-danger,
.button-danger {
    background: var(--color-danger);
}

.btn-ghost {
    background: transparent;
    color: var(--color-muted);
    padding: 6px;
}

.btn-ghost:hover {
    background: var(--color-bg);
    opacity: 1;
}

.btn-sm {
    padding: 5px 10px;
    font-size: 0.82rem;
}

.button-link {
    background: #fff;
    border: 1px solid var(--color-border);
    color: var(--color-text);
}

.inline-form {
    margin-top: 12px;
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.inline-form form {
    margin: 0;
}

/* ---------- Tables ---------- */

.table-wrap {
    overflow-x: auto;
    margin-bottom: 24px;
}

.table {
    width: 100%;
    border-collapse: collapse;
    background: var(--color-card);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    overflow: hidden;
}

.table th, .table td {
    padding: 11px 14px;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.9rem;
    white-space: nowrap;
}

.table th {
    background: #fafbfc;
    color: var(--color-muted);
    font-weight: 600;
    font-size: 0.78rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

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

.table tbody tr:hover {
    background: #fafbfc;
}

.table a {
    text-decoration: none;
    font-weight: 500;
}

.table a:hover {
    text-decoration: underline;
}

/* Avatar / client name cell */

.client-cell {
    display: flex;
    align-items: center;
    gap: 10px;
}

.avatar {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    background: var(--color-primary-soft);
    color: var(--color-primary);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.78rem;
    flex-shrink: 0;
}

/* ---------- Badges ---------- */

.badge {
    display: inline-flex;
    align-items: center;
    padding: 2px 9px;
    border-radius: 999px;
    font-size: 0.74rem;
    font-weight: 600;
    margin-left: 4px;
    white-space: nowrap;
}

.badge-success {
    background: var(--color-success-soft);
    color: var(--color-success);
}

.badge-danger {
    background: var(--color-danger-soft);
    color: var(--color-danger);
}

.badge-warning {
    background: var(--color-warning-soft);
    color: var(--color-warning);
}

.badge-muted {
    background: #f1f1f4;
    color: var(--color-muted);
}

/* ---------- Alerts ---------- */

.alert {
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    margin-bottom: 16px;
    font-size: 0.9rem;
}

.alert-success {
    background: var(--color-success-soft);
    color: #15803d;
}

.alert-danger {
    background: var(--color-danger-soft);
    color: #b91c1c;
}

/* ---------- Tabs ---------- */

.tab-list {
    display: flex;
    gap: 4px;
    border-bottom: 1px solid var(--color-border);
    margin-bottom: 20px;
    flex-wrap: wrap;
}

.tab-list button {
    background: none;
    border: none;
    border-radius: 0;
    padding: 10px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--color-muted);
    cursor: pointer;
    border-bottom: 2px solid transparent;
    margin-bottom: -1px;
}

.tab-list button:hover {
    color: var(--color-text);
    opacity: 1;
}

.tab-list button.active {
    color: var(--color-primary);
    border-bottom-color: var(--color-primary);
    font-weight: 600;
}

/* ---------- Modals ---------- */

.modal-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(15, 23, 42, 0.45);
    display: flex;
    align-items: flex-start;
    justify-content: center;
    padding: 40px 16px;
    z-index: 100;
    overflow-y: auto;
}

.modal-backdrop[hidden] {
    display: none;
}

.modal {
    background: #fff;
    border-radius: var(--radius);
    padding: 20px 22px;
    width: 100%;
    max-width: 480px;
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 14px;
}

.modal-header h2 {
    margin: 0;
}

body.modal-open {
    overflow: hidden;
}

/* ---------- Filter tabs (renewals) ---------- */

.filter-tabs {
    display: flex;
    gap: 8px;
    margin-bottom: 16px;
    flex-wrap: wrap;
}

.filter-tabs a {
    padding: 6px 14px;
    border-radius: 999px;
    border: 1px solid var(--color-border);
    background: #fff;
    color: var(--color-muted);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
}

.filter-tabs a.active {
    background: var(--color-primary);
    border-color: var(--color-primary);
    color: var(--color-primary-text);
}

.empty-state {
    color: var(--color-muted);
    text-align: center;
    padding: 24px 12px;
}