:root {
    --color-bg: #f4f6f8;
    --color-surface: #ffffff;
    --color-border: #dde2e7;
    --color-text: #1f2937;
    --color-text-muted: #6b7280;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-danger: #dc2626;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0, 0, 0, 0.08), 0 1px 2px rgba(0, 0, 0, 0.06);
}

* {
    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);
}

a {
    color: var(--color-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* Top navigation */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    row-gap: 0.5rem;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1.5rem;
}

.navbar .brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--color-text);
}

.header-page-title {
    font-weight: 700;
    font-size: 1rem;
    color: var(--color-text);
    padding-left: 0.75rem;
    border-left: 1px solid var(--color-border);
}

.navbar nav {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 1.75rem;
    margin-right: 2.5rem;
}

.navbar nav a {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.navbar nav a:hover {
    color: var(--color-text);
    text-decoration: none;
}

.navbar nav a.nav-gap-after {
    padding-right: clamp(0.5rem, 3vw, 1.7rem);
}

.dropdown {
    position: relative;
    display: inline-block;
}

.dropbtn {
    color: var(--color-text-muted);
    font-size: 0.95rem;
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    cursor: pointer;
    user-select: none;
    background: none;
    border: none;
    padding: 0;
    font-family: inherit;
}

.dropdown:hover .dropbtn,
.dropdown:focus-within .dropbtn {
    color: var(--color-text);
}

.dropdown-content {
    display: none;
    position: absolute;
    top: 100%;
    left: 0;
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    min-width: 210px;
    padding: 0.4rem 0;
    z-index: 50;
}

.dropdown-content.dropdown-right {
    left: auto;
    right: 0;
}

.dropdown:hover .dropdown-content,
.dropdown:focus-within .dropdown-content {
    display: block;
}

.dropdown-content a {
    display: block;
    width: 100%;
    box-sizing: border-box;
    padding: 0.55rem 1.1rem;
    color: var(--color-text);
    font-size: 0.9rem;
    white-space: nowrap;
    text-decoration: none;
}

.dropdown-content a:hover {
    background-color: var(--color-bg);
}

.navbar .user-badge {
    font-size: 0.85rem;
    color: var(--color-text-muted);
    margin-right: 1rem;
}

.navbar-logo {
    height: 32px;
    width: auto;
    margin-left: 1rem;
}

@media (max-width: 640px) {
    .navbar {
        padding: 0.75rem 1rem;
    }

    .navbar nav {
        gap: 1rem;
        margin-right: 1rem;
    }

    .navbar .user-badge {
        margin-right: 0;
    }
}

/* Page container */
.page {
    max-width: 1400px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

@media (max-width: 640px) {
    .page {
        margin: 1.25rem auto;
        padding: 0 1rem;
    }
}

.page-logo {
    display: block;
    max-width: 100%;
    height: auto;
    width: 320px;
    margin: 0 auto 1.5rem;
}

.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.5rem;
}

h1, h2, h3 {
    margin-top: 0;
}

/* Auth screens */
.auth-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem 0;
}

.auth-card {
    width: 100%;
    max-width: 380px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: 0 20px 45px -15px rgba(15, 23, 42, 0.35);
    padding: 2rem;
}

.auth-logo {
    display: block;
    height: 64px;
    width: auto;
    margin: 0 auto 1.25rem;
}

.auth-card h1 {
    font-size: 1.4rem;
    margin-bottom: 0.25rem;
}

.auth-card .subtitle {
    color: var(--color-text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.5rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.95rem;
    background: var(--color-surface);
    color: var(--color-text);
}

.form-group input[type="radio"],
.form-group input[type="checkbox"] {
    width: auto;
}

#id_work_mode {
    display: flex;
    gap: 1.5rem;
    align-items: center;
}

#id_work_mode label {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-weight: 400;
}

.table-search {
    width: 100%;
    max-width: 280px;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    background: var(--color-surface);
    color: var(--color-text);
    margin-bottom: 1rem;
}

.table-search:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.15);
}

.btn {
    display: inline-block;
    padding: 0.6rem 1.1rem;
    border-radius: var(--radius);
    border: none;
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
}

.btn-primary {
    background: var(--color-primary);
    color: #fff;
    width: 100%;
}

.btn-primary:hover {
    background: var(--color-primary-hover);
    text-decoration: none;
}

.errorlist {
    list-style: none;
    padding: 0;
    margin: 0 0 1rem 0;
    color: var(--color-danger);
    font-size: 0.85rem;
}

.helptext {
    font-size: 0.8rem;
    color: var(--color-text-muted);
}

/* Tables */
.table-responsive {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.table {
    width: 100%;
    border-collapse: collapse;
    font-family: Arial, sans-serif;
}

@media (max-width: 640px) {
    .table th,
    .table td {
        white-space: nowrap;
    }
}

.table th,
.table td {
    text-align: left;
    padding: 8px;
    border: 1px solid var(--color-border);
}

.table th {
    background-color: var(--color-primary);
    color: #fff;
    font-weight: 700;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.table tbody tr:nth-child(even) {
    background-color: var(--color-bg);
}

/* Status / settlement badges */
.badge {
    display: inline-block;
    padding: 0.2rem 0.6rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 600;
    color: #fff;
    white-space: nowrap;
}

.badge-pending { background-color: #f59e0b; }
.badge-approved { background-color: #16a34a; }
.badge-rejected { background-color: #dc2626; }
.badge-settled { background-color: #16a34a; }
.badge-not_settled { background-color: #dc2626; }
.badge-in_progress { background-color: #f59e0b; }
.badge-completed { background-color: #16a34a; }
.badge-active { background-color: #16a34a; }
.badge-disabled { background-color: #dc2626; }

/* Client + project pairing */
.client-project {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.client-tag {
    display: inline-block;
    padding: 0.15rem 0.6rem;
    border-radius: 999px;
    background-color: var(--color-bg);
    border: 1px solid var(--color-border);
    color: var(--color-text-muted);
    font-size: 0.75rem;
    font-weight: 600;
    white-space: nowrap;
}

.client-project .project-name {
    font-weight: 600;
    color: var(--color-text);
}

/* Claim summary stat boxes */
.stat-boxes {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
}

.stat-box {
    width: 150px;
    aspect-ratio: 1 / 1;
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 0.5rem;
}

.stat-box .stat-value {
    font-size: 2.25rem;
    font-weight: 700;
    line-height: 1;
}

.stat-box .stat-label {
    margin-top: 0.5rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.03em;
}

.stat-box-overall { background-color: #2563eb; }
.stat-box-approved { background-color: #16a34a; }
.stat-box-pending { background-color: #f59e0b; }
.stat-box-rejected { background-color: #dc2626; }
.stat-box-settled { background-color: #0891b2; }
.stat-box-unsettled { background-color: #ea580c; }

.sticky-col {
    position: sticky;
    left: 0;
    z-index: 1;
    background: var(--color-surface);
    box-shadow: 1px 0 0 var(--color-border);
}

.timesheet-grid {
    border: 1px solid var(--color-border);
}

.timesheet-grid th,
.timesheet-grid td {
    border: 1px solid var(--color-border);
}

.page-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 1rem;
}

@media (max-width: 640px) {
    .page-header {
        flex-wrap: wrap;
        gap: 0.75rem;
    }

    form[style*="display:flex"],
    form[style*="display: flex"] {
        flex-wrap: wrap;
    }
}

.dashboard-grid {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 1.5rem;
    margin-bottom: 1.5rem;
    align-items: start;
}



@media (max-width: 900px) {
    .dashboard-grid {
        grid-template-columns: 1fr;
    }
}