@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
    --primary-color: #004B4B;
    --secondary-color: #f0f9f9;
    --accent-color: #006666;
    --accent-hover: #008080;
    --bg-color: #f1f5f9;
    --card-bg: #ffffff;
    --text-main: #1f2f2f;
    --text-muted: #5f7a7a;
    --border-color: #e2e8f0;
    --sidebar-bg: #004B4B;
    --sidebar-text: #e0f2f1;
    --sidebar-hover: #003838;
    --success-color: #006666;
    --success-hover: #008080;
    --danger-color: #722f37;
    /* A deep wine red that complements teal well */
    --danger-hover: #5a252b;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-main);
    margin: 0;
    -webkit-font-smoothing: antialiased;
    min-height: 100vh;
}

.bg-light-modern {
    background-color: var(--bg-color);
    min-height: 100vh;
}

/* Sidebar styling */
.sidebar {
    min-height: 100vh;
    background-color: var(--sidebar-bg);
    box-shadow: 4px 0 15px rgba(0, 0, 0, 0.05);
    z-index: 100;
}

.sidebar a {
    color: var(--sidebar-text);
    text-decoration: none;
    padding: 0.85rem 1.25rem;
    border-radius: 8px;
    display: block;
    font-weight: 500;
    font-size: 0.95rem;
    transition: all 0.2s ease;
}

.sidebar a:hover,
.sidebar a.active {
    background-color: var(--sidebar-hover);
    color: #ffffff !important;
    font-weight: 700;
}

.sidebar a:hover {
    transform: translateX(4px);
}

/* Navbar */
.navbar {
    background-color: var(--card-bg) !important;
    border: 1px solid var(--border-color);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.02);
}

.navbar-brand {
    font-weight: 700;
    color: var(--primary-color) !important;
    letter-spacing: -0.5px;
}

/* Cards */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05), 0 2px 4px -2px rgba(0, 0, 0, 0.05);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    margin-bottom: 1.5rem;
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.05);
}

.card-body {
    padding: 1.5rem;
}

.card-title {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
}

.card-text {
    font-size: 2.25rem;
    font-weight: 700;
    color: var(--primary-color);
    margin: 0;
    line-height: 1;
}

/* Typography & Layout */
.section {
    background-color: var(--card-bg);
    border-radius: 16px;
    padding: 2.5rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    margin-bottom: 2rem;
    animation: fadeIn 0.4s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

h2,
h3,
h4,
h5 {
    font-weight: 600;
    color: var(--primary-color);
    letter-spacing: -0.5px;
}

h2 {
    font-size: 1.875rem;
    font-weight: 700;
    border-bottom: 2px solid var(--bg-color);
    padding-bottom: 1rem;
    margin-bottom: 2rem;
}

h3 {
    font-size: 1.25rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

/* Forms & Inputs */
.form-control,
.form-select {
    border-radius: 10px;
    border: 1px solid var(--border-color);
    padding: 0.75rem 1rem;
    padding-right: 2.5rem;
    /* Space for the dropdown arrow */
    font-size: 0.95rem;
    color: var(--text-main);
    transition: all 0.2s ease;
    background-color: #f8fafc;
    min-width: 140px;
    /* Ensure enough width for labels */
}

.form-select.d-inline,
.form-control.d-inline {
    width: auto;
    min-width: 160px;
    margin-right: 0.5rem;
}

.form-control:focus,
.form-select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 4px rgba(0, 75, 75, 0.1);
    background-color: #ffffff;
    outline: none;
}

label {
    font-weight: 500;
    color: var(--text-main);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
    display: block;
}

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

/* Buttons */
.btn {
    border-radius: 10px;
    padding: 0.6rem 1.5rem;
    font-weight: 600;
    transition: all 0.2s ease;
    letter-spacing: 0.3px;
    font-size: 0.95rem;
}

.btn-primary {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
    box-shadow: 0 4px 6px -1px rgba(0, 75, 75, 0.2);
}

.btn-primary:hover,
.btn-primary:focus {
    background-color: var(--accent-hover);
    border-color: var(--accent-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 10px -1px rgba(0, 75, 75, 0.3);
}

.btn-success {
    background-color: var(--success-color);
    border-color: var(--success-color);
    box-shadow: 0 4px 6px -1px rgba(0, 75, 75, 0.2);
    color: white;
}

.btn-success:hover,
.btn-success:focus {
    background-color: var(--success-hover);
    border-color: var(--success-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 10px -1px rgba(0, 75, 75, 0.3);
    color: white;
}

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

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

.btn-secondary {
    background-color: var(--sidebar-text);
    border-color: var(--sidebar-text);
    color: var(--primary-color);
}

/* Tables */
.table-responsive {
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-color);
    background-color: #ffffff;
}

.table {
    margin-bottom: 0;
    width: 100%;
    border-collapse: collapse;
}

.table thead th {
    background-color: var(--bg-color);
    color: var(--text-muted);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 1.25rem;
    white-space: nowrap;
}

.table tbody td {
    padding: 1rem 1.25rem;
    vertical-align: middle;
    color: var(--text-main);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.95rem;
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(248, 250, 252, 0.6);
}

.table tbody tr:hover {
    background-color: #f1f5f9;
}

.table .btn-sm {
    padding: 0.4rem 1rem;
    font-size: 0.85rem;
}

/* Passenger Entry (Quotes) */
.passenger-entry {
    background-color: #f8fafc;
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    margin-bottom: 1.5rem;
    border-radius: 12px;
    position: relative;
    transition: box-shadow 0.2s ease;
}

.passenger-entry:hover {
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.passenger-entry h5 {
    color: var(--primary-color);
    margin-bottom: 1.25rem;
    font-size: 1.1rem;
    border-bottom: 1px dashed var(--border-color);
    padding-bottom: 0.5rem;
}

/* Responsive */
@media (max-width: 768px) {
    .sidebar {
        min-height: auto;
        border-right: none;
    }

    .section {
        padding: 1.5rem;
    }

    .card {
        margin-bottom: 1rem;
    }
}