/* ============================================================
   R.K. LOGISTICS — Transport Management System
   Main Stylesheet
   ============================================================ */

:root {
    --bg-dark:       #0d1117;
    --bg-sidebar:    #111827;
    --bg-card:       #1a2236;
    --bg-input:      #1e2d45;
    --border:        #2a3f5f;
    --accent:        #00b4d8;
    --accent-2:      #0077b6;
    --accent-glow:   rgba(0, 180, 216, 0.18);
    --text-primary:  #e2e8f0;
    --text-muted:    #7a93b4;
    --text-dim:      #4a6278;
    --success:       #10b981;
    --warning:       #f59e0b;
    --danger:        #ef4444;
    --sidebar-w:     220px;
    --topbar-h:      60px;
    --radius:        10px;
    --shadow:        0 4px 24px rgba(0,0,0,0.35);
    --font-head:     'Rajdhani', sans-serif;
    --font-body:     'Inter', sans-serif;
    --transition:    0.2s ease;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html, body {
    height: 100%;
    font-family: var(--font-body);
    font-size: 14px;
    background: var(--bg-dark);
    color: var(--text-primary);
}

/* ─── App Shell ──────────────────────────────────────────── */
.app-shell {
    display: flex;
    height: 100vh;
    overflow: hidden;
}

/* ─── Sidebar ────────────────────────────────────────────── */
.sidebar {
    width: var(--sidebar-w);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    z-index: 100;
}

.sidebar-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 18px 20px;
    border-bottom: 1px solid var(--border);
}

.brand-icon {
    width: 36px; height: 36px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    color: #fff; font-size: 16px;
}

.brand-text {
    font-family: var(--font-head);
    font-size: 18px; font-weight: 700;
    letter-spacing: 2px;
    color: var(--text-primary);
}

.sidebar-nav {
    padding: 16px 12px;
    display: flex; flex-direction: column; gap: 4px;
    flex: 1;
}

.nav-item {
    display: flex; align-items: center; gap: 12px;
    padding: 10px 14px;
    border-radius: 8px;
    text-decoration: none;
    color: var(--text-muted);
    font-weight: 500;
    transition: var(--transition);
    font-size: 13.5px;
}

.nav-item:hover {
    background: var(--accent-glow);
    color: var(--accent);
}

.nav-item.active {
    background: var(--accent-glow);
    color: var(--accent);
    border-left: 3px solid var(--accent);
}

.nav-item i { width: 18px; font-size: 15px; }

/* ─── Main Content ───────────────────────────────────────── */
.main-content {
    flex: 1;
    display: flex; flex-direction: column;
    overflow: hidden;
    background: var(--bg-dark);
}

/* ─── Topbar ─────────────────────────────────────────────── */
.topbar {
    height: var(--topbar-h);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border);
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 24px;
    flex-shrink: 0;
}

.page-title {
    font-family: var(--font-head);
    font-size: 20px; font-weight: 700;
    letter-spacing: 1px;
    color: var(--text-primary);
}

.topbar-right { display: flex; align-items: center; gap: 16px; }

.user-name {
    font-weight: 500; color: var(--text-primary);
    font-size: 13px;
}

.btn-logout {
    background: none; border: none;
    color: var(--text-muted); cursor: pointer;
    font-size: 16px; padding: 6px;
    transition: var(--transition);
}

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

/* ─── Page Content ───────────────────────────────────────── */
.page-content {
    flex: 1; overflow-y: auto;
    padding: 28px;
}

/* ─── Alerts ─────────────────────────────────────────────── */
.alert {
    display: flex; align-items: center; gap: 10px;
    padding: 12px 18px; border-radius: var(--radius);
    margin-bottom: 20px; font-size: 13.5px; font-weight: 500;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from { opacity: 0; transform: translateY(-10px); }
    to   { opacity: 1; transform: translateY(0); }
}

.alert-success { background: rgba(16,185,129,.15); border: 1px solid rgba(16,185,129,.3); color: #34d399; }
.alert-error   { background: rgba(239,68,68,.15);  border: 1px solid rgba(239,68,68,.3);  color: #f87171; }

/* ─── Cards ──────────────────────────────────────────────── */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 24px;
    box-shadow: var(--shadow);
}

.card-title {
    font-family: var(--font-head);
    font-size: 17px; font-weight: 600;
    letter-spacing: 0.5px;
    color: var(--text-primary);
    margin-bottom: 20px;
    display: flex; align-items: center; gap: 10px;
}

/* ─── Stat Cards ─────────────────────────────────────────── */
.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 28px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    display: flex; flex-direction: column;
    position: relative; overflow: hidden;
    transition: var(--transition);
}

.stat-card:hover { border-color: var(--accent); transform: translateY(-2px); }

.stat-card::before {
    content: '';
    position: absolute; top: 0; left: 0; right: 0; height: 3px;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.stat-icon {
    width: 40px; height: 40px; border-radius: 8px;
    display: flex; align-items: center; justify-content: center;
    font-size: 18px; margin-bottom: 12px;
}

.stat-icon.blue   { background: rgba(0,180,216,.15); color: var(--accent); }
.stat-icon.green  { background: rgba(16,185,129,.15); color: var(--success); }
.stat-icon.yellow { background: rgba(245,158,11,.15); color: var(--warning); }
.stat-icon.red    { background: rgba(239,68,68,.15);  color: var(--danger); }

.stat-value {
    font-family: var(--font-head);
    font-size: 26px; font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 12px; color: var(--text-muted);
    margin-top: 2px;
}

/* ─── Buttons ────────────────────────────────────────────── */
.btn {
    display: inline-flex; align-items: center; gap: 7px;
    padding: 9px 18px; border-radius: 7px;
    font-size: 13px; font-weight: 600;
    text-decoration: none; cursor: pointer;
    border: none; transition: var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff;
}
.btn-primary:hover { opacity: 0.88; color: #fff; }

.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-muted);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }

.btn-danger {
    background: rgba(239,68,68,.15);
    border: 1px solid rgba(239,68,68,.3);
    color: var(--danger);
}
.btn-danger:hover { background: rgba(239,68,68,.25); }

.btn-success {
    background: rgba(16,185,129,.15);
    border: 1px solid rgba(16,185,129,.3);
    color: var(--success);
}
.btn-success:hover { background: rgba(16,185,129,.25); }

.btn-sm { padding: 5px 12px; font-size: 12px; }

/* ─── Tables ─────────────────────────────────────────────── */
.table-wrapper {
    overflow-x: auto;
    border-radius: var(--radius);
    border: 1px solid var(--border);
}

table.data-table {
    width: 100%; border-collapse: collapse;
    font-size: 13px;
}

.data-table thead tr {
    background: var(--bg-input);
    border-bottom: 1px solid var(--border);
}

.data-table th {
    padding: 12px 14px; text-align: left;
    font-family: var(--font-head);
    font-size: 12px; font-weight: 600;
    letter-spacing: 1px; text-transform: uppercase;
    color: var(--text-muted);
    white-space: nowrap;
}

.data-table td {
    padding: 11px 14px;
    border-bottom: 1px solid rgba(42,63,95,.5);
    color: var(--text-primary);
    vertical-align: middle;
}

.data-table tbody tr:hover { background: rgba(0,180,216,.04); }

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

/* ─── Badges ─────────────────────────────────────────────── */
.badge {
    display: inline-flex; align-items: center; gap: 4px;
    padding: 3px 10px; border-radius: 999px;
    font-size: 11px; font-weight: 600;
}

.badge-pending  { background: rgba(245,158,11,.15); color: var(--warning); border: 1px solid rgba(245,158,11,.3); }
.badge-invoiced { background: rgba(0,180,216,.15);  color: var(--accent);  border: 1px solid rgba(0,180,216,.3); }
.badge-paid     { background: rgba(16,185,129,.15); color: var(--success); border: 1px solid rgba(16,185,129,.3); }
.badge-unpaid   { background: rgba(239,68,68,.15);  color: var(--danger);  border: 1px solid rgba(239,68,68,.3); }

/* ─── Forms ──────────────────────────────────────────────── */
.form-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.form-grid.cols-4 { grid-template-columns: 1fr 1fr 1fr 1fr; }
.form-grid.cols-3 { grid-template-columns: 1fr 1fr 1fr; }
.form-grid.full   { grid-template-columns: 1fr; }

.form-group { display: flex; flex-direction: column; gap: 5px; }
.form-group.span-2 { grid-column: span 2; }
.form-group.span-full { grid-column: 1 / -1; }

label {
    font-size: 12px; font-weight: 500;
    color: var(--text-muted);
    letter-spacing: 0.3px;
}

.form-control {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 7px;
    padding: 9px 13px;
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-body);
    width: 100%;
    transition: var(--transition);
}

.form-control:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

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

select.form-control option { background: var(--bg-card); }

textarea.form-control { resize: vertical; min-height: 90px; }

.form-check {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 0;
}

.form-check input[type="checkbox"] {
    width: 16px; height: 16px; accent-color: var(--accent);
}

.form-check label { font-size: 13px; color: var(--text-primary); margin: 0; }

.validation-message { color: var(--danger); font-size: 11.5px; }

.field-validation-error { color: var(--danger); font-size: 11.5px; }

.section-title {
    font-family: var(--font-head);
    font-size: 15px; font-weight: 600;
    color: var(--accent);
    letter-spacing: 0.5px;
    padding-bottom: 10px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 18px;
    grid-column: 1 / -1;
}

/* ─── Page Header ────────────────────────────────────────── */
.page-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 24px;
}

.page-header-title {
    font-family: var(--font-head);
    font-size: 22px; font-weight: 700;
    color: var(--text-primary);
}

/* ─── Login Page ─────────────────────────────────────────── */
.login-page {
    min-height: 100vh;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-dark);
    position: relative; overflow: hidden;
}

.login-page::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse at 20% 50%, rgba(0,119,182,.15) 0%, transparent 60%),
        radial-gradient(ellipse at 80% 20%, rgba(0,180,216,.1) 0%, transparent 50%);
}

.login-box {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 48px 40px;
    width: 420px;
    position: relative;
    box-shadow: 0 20px 60px rgba(0,0,0,.5);
}

.login-logo {
    text-align: center; margin-bottom: 32px;
}

.login-logo .icon {
    width: 60px; height: 60px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    border-radius: 14px;
    display: inline-flex; align-items: center; justify-content: center;
    font-size: 26px; color: #fff;
    margin-bottom: 12px;
}

.login-logo h1 {
    font-family: var(--font-head);
    font-size: 26px; font-weight: 700;
    letter-spacing: 3px;
    color: var(--text-primary);
}

.login-logo p { color: var(--text-muted); font-size: 13px; margin-top: 4px; }

.login-form .form-group { margin-bottom: 16px; }

.login-btn {
    width: 100%; padding: 12px;
    background: linear-gradient(135deg, var(--accent), var(--accent-2));
    color: #fff; border: none; border-radius: 8px;
    font-size: 14px; font-weight: 700;
    letter-spacing: 1px; text-transform: uppercase;
    cursor: pointer; margin-top: 8px;
    transition: var(--transition);
}

.login-btn:hover { opacity: 0.88; transform: translateY(-1px); }

.login-footer {
    text-align: center; margin-top: 28px;
    color: var(--text-dim); font-size: 11.5px;
}

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

/* ─── Modal ──────────────────────────────────────────────── */
.modal-overlay {
    display: none; position: fixed; inset: 0;
    background: rgba(0,0,0,.65); backdrop-filter: blur(3px);
    z-index: 1000; align-items: center; justify-content: center;
}

.modal-overlay.open { display: flex; }

.modal {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 14px; padding: 32px;
    width: 480px; max-width: 95vw;
    box-shadow: 0 24px 60px rgba(0,0,0,.5);
    animation: modalIn 0.25s ease;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(-10px); }
    to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-header {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 24px;
}

.modal-title {
    font-family: var(--font-head);
    font-size: 18px; font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    background: none; border: none;
    color: var(--text-muted); cursor: pointer;
    font-size: 18px;
    transition: var(--transition);
}

.modal-close:hover { color: var(--danger); }

.modal-footer {
    display: flex; justify-content: flex-end; gap: 10px;
    margin-top: 24px; padding-top: 16px;
    border-top: 1px solid var(--border);
}

/* ─── Ledger Table ───────────────────────────────────────── */
.ledger-balance {
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 14px 20px;
    display: flex; align-items: center; justify-content: center;
    gap: 10px; margin-top: 16px;
    font-family: var(--font-head); font-size: 17px; font-weight: 700;
}

.ledger-balance.positive { color: var(--success); }
.ledger-balance.negative { color: var(--danger); }

/* ─── Print ──────────────────────────────────────────────── */
@media print {
    .sidebar, .topbar, .btn, .alert { display: none !important; }
    .main-content { margin: 0 !important; }
    .page-content { padding: 0 !important; }
    body { background: #fff !important; color: #000 !important; }
}

/* ─── Responsive ─────────────────────────────────────────── */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .form-grid { grid-template-columns: 1fr; }
    .form-grid.cols-4, .form-grid.cols-3 { grid-template-columns: 1fr; }
    .form-group.span-2 { grid-column: span 1; }
    .stat-grid { grid-template-columns: 1fr 1fr; }
    .page-content { padding: 16px; }
}

/* ─── Autocomplete ───────────────────────────────────────── */
.autocomplete-wrapper { position: relative; }

.autocomplete-dropdown {
    position: absolute; top: 100%; left: 0; right: 0; z-index: 500;
    background: var(--bg-card); border: 1px solid var(--border);
    border-radius: 8px; max-height: 220px; overflow-y: auto;
    box-shadow: var(--shadow); margin-top: 4px; display: none;
}

.autocomplete-item {
    padding: 10px 14px; cursor: pointer;
    color: var(--text-primary); font-size: 13px;
    transition: var(--transition);
    border-bottom: 1px solid rgba(42,63,95,.4);
}

.autocomplete-item:last-child { border-bottom: none; }
.autocomplete-item:hover { background: var(--accent-glow); color: var(--accent); }

/* ─── GR Print ───────────────────────────────────────────── */
.gr-print {
    background: #fff; color: #000; padding: 32px;
    max-width: 800px; margin: 0 auto;
    border: 2px solid #333;
}

.gr-header {
    display: flex; align-items: center; justify-content: space-between;
    border-bottom: 2px solid #000; padding-bottom: 12px; margin-bottom: 16px;
}

.gr-title { font-size: 22px; font-weight: 800; letter-spacing: 2px; }
.gr-subtitle { font-size: 11px; color: #555; }

.gr-table { width: 100%; border-collapse: collapse; margin-top: 12px; }
.gr-table td, .gr-table th {
    border: 1px solid #333; padding: 7px 10px; font-size: 12px;
}
.gr-table th { background: #f0f0f0; font-weight: 700; }