/*
 * Custom styles for the eBay repricer app.
 *
 * This stylesheet builds upon Bootstrap to provide a
 * polished and modern look, including typography, colours,
 * card styling, tables and buttons.  Charts and forms are
 * wrapped in cards to create a consistent aesthetic.
 */

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

/*
 * Define colour palette and spacing variables for a cohesive look.
 * Using CSS variables makes it easy to tweak colours globally.
 */
:root {
    --bg-color: #f8fafc;
    --surface-color: #ffffff;
    --primary-color: #2563eb; /* Indigo 600 */
    --primary-color-dark: #1e3a8a; /* Indigo 800 */
    --success-color: #059669; /* Emerald 600 */
    --text-color: #374151; /* Gray 700 */
    --muted-color: #6b7280; /* Gray 500 */
    --border-color: #e5e7eb; /* Gray 200 */
    --hover-color: #f1f5f9; /* Gray 100 */
    --card-radius: 10px;
    --card-shadow: 0 2px 6px rgba(0, 0, 0, 0.05);
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    font-size: 15px;
    line-height: 1.5;
    min-height: 100vh;
}

/* Navbar */
.navbar {
    background-color: var(--primary-color);
    box-shadow: var(--card-shadow);
    padding-top: 0.5rem;
    padding-bottom: 0.5rem;
}

.navbar .navbar-brand,
.navbar .nav-link {
    color: #ffffff !important;
    font-weight: 600;
    font-size: 15px;
    margin-right: 1rem;
}

.navbar .nav-link:hover,
.navbar .nav-link:focus {
    color: #dbeafe !important; /* lighter blue on hover */
    text-decoration: none;
}

/* Container width */
.container {
    max-width: 1140px;
}

/* Cards */
.card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    box-shadow: var(--card-shadow);
    margin-bottom: 2rem;
    padding: 1.75rem;
}

.card-title {
    font-size: 1.5rem;
    font-weight: 600;
    margin-bottom: 1.25rem;
}

/* Table styles */
.table {
    background: transparent;
    font-size: 0.875rem;
}

.table thead th {
    border-bottom: 1px solid var(--border-color);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--muted-color);
    padding-top: 0.75rem;
    padding-bottom: 0.75rem;
    background-color: var(--hover-color);
}

.table tbody td {
    vertical-align: middle;
    padding-top: 0.6rem;
    padding-bottom: 0.6rem;
}

.table tbody tr {
    transition: background-color 0.2s ease;
}

.table tbody tr:hover {
    background-color: var(--hover-color);
}

/* Buttons */
.btn {
    border-radius: 0.375rem;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.15s ease;
}

.btn-primary {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
}

.btn-primary:hover {
    background-color: var(--primary-color-dark);
    border-color: var(--primary-color-dark);
    color: #ffffff;
}

.btn-outline-primary {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

.btn-outline-primary:hover {
    background-color: var(--primary-color);
    border-color: var(--primary-color);
    color: #ffffff;
}

.btn-secondary {
    background-color: var(--muted-color);
    border-color: var(--muted-color);
    color: #ffffff;
}

.btn-secondary:hover {
    background-color: #4b5563; /* darker grey */
    border-color: #4b5563;
    color: #ffffff;
}

/* Form controls */
.form-control,
.form-select {
    border-radius: 0.375rem;
    font-size: 0.875rem;
    border-color: var(--border-color);
}

.form-control:focus,
.form-select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 0.1rem rgba(37, 99, 235, 0.25);
}

/* Chart container */
.chart-card {
    padding: 1rem;
    border: 1px solid var(--border-color);
    border-radius: var(--card-radius);
    background-color: var(--surface-color);
    box-shadow: var(--card-shadow);
    margin-bottom: 1.5rem;
}

/* Login card */
.login-card {
    max-width: 420px;
    margin: auto;
}

.login-card .card-body {
    padding: 2rem;
}

/* Alerts */
.alert {
    border-radius: 0.375rem;
    font-size: 0.875rem;
}