/*
  N Rent A Car Modern UI Framework - Eton Aesthetic
  Pure CSS / Zero External Dependencies
*/

:root {
    --primary: #1E3A8A; /* Navy Blue */
    --primary-hover: #172554;
    --primary-soft: #EFF6FF;

    --accent: #B91C1C; /* Red */
    --accent-hover: #991B1B;

    --side-bg: #0F172A; /* Dark Slate */
    --side-text: #94A3B8;
    --side-active: #3B82F6;
    --side-hover: #1E293B;

    --success: #10B981;
    --success-bg: #ECFDF5;
    --warning: #F59E0B;
    --warning-bg: #FFFBEB;
    --danger: #EF4444;
    --danger-bg: #FEF2F2;
    --info: #0EA5E9;
    --info-bg: #F0F9FF;

    --bg: #F9FAFB;
    --white: #FFFFFF;
    --text-main: #111827;
    --text-muted: #6B7280;
    --border: #E5E7EB;
    --sidebar-width: 260px;
}

* { box-sizing: border-box; }

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg);
    background-image: radial-gradient(var(--border) 1px, transparent 1px);
    background-size: 40px 40px;
    color: var(--text-main);
    display: flex;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* Layout Architecture */
.app-wrapper {
    display: flex;
    width: 100%;
}

.sidebar {
    width: var(--sidebar-width);
    background-color: var(--side-bg);
    color: var(--white);
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    z-index: 1000;
    transition: transform 0.3s ease;
    box-shadow: 4px 0 10px rgba(0,0,0,0.1);
}

.main-content {
    flex: 1;
    margin-left: var(--sidebar-width);
    display: flex;
    flex-direction: column;
    min-width: 0;
    transition: margin-left 0.3s ease;
}

/* Sidebar Styling */
.sidebar-brand {
    padding: 24px;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--white);
    display: flex;
    align-items: center;
    gap: 12px;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

.sidebar-nav {
    padding: 20px 0;
    flex: 1;
}

.nav-group-title {
    padding: 0 24px 10px;
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--side-text);
    text-transform: uppercase;
    letter-spacing: 0.1em;
}

.nav-link {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 12px 24px;
    color: var(--side-text);
    text-decoration: none;
    font-size: 0.9375rem;
    font-weight: 600;
    transition: all 0.2s;
}

.nav-link:hover {
    background-color: var(--side-hover);
    color: var(--white);
}

.nav-link.active {
    background-color: rgba(59, 130, 246, 0.1);
    color: var(--side-active);
    border-right: 4px solid var(--side-active);
}

.nav-icon {
    width: 20px;
    height: 20px;
    stroke: currentColor;
    stroke-width: 2.5;
    fill: none;
}

/* Top Bar Styling */
.topbar {
    height: 70px;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 32px;
    position: sticky;
    top: 0;
    z-index: 500;
}

.page-title {
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--primary);
}

.menu-toggle {
    display: none;
    cursor: pointer;
    padding: 8px;
    margin-right: 12px;
    border-radius: 8px;
}
.menu-toggle:hover { background-color: var(--border); }

/* Dashboard Cards */
.content-area {
    padding: 32px;
}

.stat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
    margin-bottom: 32px;
}

.stat-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    padding: 24px;
    border-radius: 1.5rem;
    border: 1px solid var(--border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all 0.3s ease;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    border-color: var(--primary);
}

.stat-label {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.025em;
    margin-bottom: 4px;
}

.stat-value {
    font-size: 1.75rem;
    font-weight: 800;
    color: var(--text-main);
}

.stat-icon-wrapper {
    width: 54px;
    height: 54px;
    border-radius: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Color Modifiers for Stats */
.bg-indigo-soft { background: var(--primary-soft); color: var(--primary); }
.bg-green-soft { background: var(--success-bg); color: var(--success); }
.bg-amber-soft { background: var(--warning-bg); color: var(--warning); }
.bg-red-soft { background: var(--danger-bg); color: var(--danger); }
.bg-blue-soft { background: var(--info-bg); color: var(--info); }
.bg-slate-soft { background: #f1f5f9; color: #475569; }

/* UI Components Refinement */
.rent-card {
    background: rgba(255, 255, 255, 0.7);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    border: 1px solid var(--border);
    border-radius: 1.5rem;
    padding: 24px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.card-header {
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.card-header h3 {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 800;
    color: var(--primary);
}

/* Buttons Modernized */
.rent-btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border-radius: 9999px;
    font-weight: 700;
    font-size: 0.875rem;
    text-decoration: none;
    cursor: pointer;
    border: none;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 0 4px 6px -1px rgba(0,0,0,0.1);
}

.btn-primary { background-color: var(--primary); color: var(--white); }
.btn-primary:hover { background-color: var(--primary-hover); transform: translateY(-2px); box-shadow: 0 10px 15px -3px rgba(30, 58, 138, 0.3); }

.btn-success { background-color: var(--success); color: var(--white); }
.btn-success:hover { transform: translateY(-2px); box-shadow: 0 10px 15px -3px rgba(16, 185, 129, 0.3); }

.btn-warning { background-color: var(--warning); color: var(--white); }
.btn-ghost { background: var(--white); color: var(--text-muted); border: 2px solid var(--border); box-shadow: none; }
.btn-ghost:hover { background: var(--bg); color: var(--primary); border-color: var(--primary); }
.btn-sm { padding: 6px 16px; font-size: 0.75rem; }

/* Modern Tables */
.table-wrapper {
    overflow-x: auto;
    background: transparent;
    -webkit-overflow-scrolling: touch;
}

.modern-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
}

.modern-table th {
    text-align: left;
    padding: 16px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    color: var(--primary);
    border-bottom: 2px solid var(--border);
    background: transparent;
    white-space: nowrap;
}

.modern-table td {
    padding: 16px;
    font-size: 0.875rem;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
    color: var(--text-gray);
}

.modern-table tr:last-child td { border-bottom: none; }
.modern-table tr:hover td { background: rgba(30, 58, 138, 0.02); }

/* Modern Badges (Pills) */
.status-pill {
    padding: 6px 14px;
    border-radius: 9999px;
    font-size: 0.7rem;
    font-weight: 800;
    display: inline-block;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.pill-success { background: var(--success-bg); color: var(--success); }
.pill-warning { background: var(--warning-bg); color: var(--warning); }
.pill-danger { background: var(--danger-bg); color: var(--danger); }
.pill-info { background: var(--info-bg); color: var(--info); }
.pill-muted { background: #F3F4F6; color: #4B5563; }

/* SVG Charts */
.svg-chart {
    width: 100%;
    height: auto;
    display: block;
    filter: drop-shadow(0 4px 3px rgba(0, 0, 0, 0.07));
}

.svg-chart rect {
    transition: all 0.3s ease;
    cursor: pointer;
}

.svg-chart rect:hover {
    fill: var(--primary-hover);
}

/* Forms */
.rent-row {
    display: flex;
    flex-wrap: wrap;
    margin: 0 -12px;
}

.rent-col {
    flex: 1;
    padding: 0 12px;
    min-width: 250px;
}

.form-group {
    margin-bottom: 20px;
}

.form-label {
    display: block;
    margin-bottom: 8px;
    font-size: 0.875rem;
    font-weight: 700;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

.form-control {
    width: 100%;
    padding: 12px 16px;
    border: 2px solid var(--border);
    border-radius: 0.75rem;
    font-size: 0.9375rem;
    color: var(--text-main);
    transition: all 0.2s;
    background-color: var(--white);
}

.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(30, 58, 138, 0.1);
}

/* Footer Styling */
.app-footer {
    margin-top: auto;
    padding: 24px 32px;
    border-top: 1px solid var(--border);
    font-size: 0.875rem;
    color: var(--text-muted);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: rgba(255, 255, 255, 0.8);
    backdrop-filter: blur(8px);
}

.footer-dev {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--primary);
}

/* Sidebar Toggle */
#sidebar-toggle { display: none; }
.sidebar-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 900;
}

/* Responsive Adjustments */
@media (max-width: 1024px) {
    .sidebar { width: var(--sidebar-width); transform: translateX(-100%); }
    .main-content { margin-left: 0; }
    .menu-toggle { display: flex; }
    #sidebar-toggle:checked ~ .sidebar { transform: translateX(0); }
    #sidebar-toggle:checked ~ .sidebar-overlay { display: block; }
}

@media (max-width: 768px) {
    .hide-mobile { display: none; }
    .stat-grid { grid-template-columns: repeat(2, 1fr); }
    .rent-col { flex-basis: 100%; }
    .topbar { padding: 0 16px; }
    .app-footer { flex-direction: column; text-align: center; gap: 8px; }
}

@media (max-width: 480px) {
    .stat-grid { grid-template-columns: 1fr; }
    .stat-card { padding: 20px; }
    .content-area { padding: 20px; }
}

.text-end { text-align: right; }
.mt-4 { margin-top: 24px; }
.mb-4 { margin-bottom: 24px; }
.d-flex { display: flex; }
.justify-between { justify-content: space-between; }
.align-center { align-items: center; }
.flex-wrap { flex-wrap: wrap; }
.gap-2 { gap: 8px; }
.gap-3 { gap: 12px; }

/* Header Actions with Mobile Right Alignment */
.header-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 24px;
}

@media (max-width: 640px) {
    .header-actions > *:last-child {
        margin-left: auto;
    }
}