:root {
    --primary-color: #4f46e5;
    --primary-hover: #4338ca;
    --bg-color: #f3f4f6;
    --text-color: #1f2937;
    --white: #ffffff;
    --gray-200: #e5e7eb;
    --gray-500: #6b7280;
    --danger: #ef4444;
    --success: #10b981;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
}

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

a:hover {
    color: var(--primary-hover);
}

/* Navbar */
.navbar {
    background-color: var(--white);
    box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
    padding: 1rem 0;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.brand {
    font-weight: 700;
    font-size: 1.5rem;
    color: var(--text-color);
}

.nav-links {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.nav-links a {
    color: var(--gray-500);
    font-weight: 500;
    transition: color 0.2s;
}

.nav-links a:hover {
    color: var(--text-color);
}

/* Content */
.content {
    margin-top: 2rem;
    display: block;
}

/* Alerts */
.alert {
    padding: 1rem;
    margin-bottom: 1.5rem;
    border-radius: 0.375rem;
    font-weight: 500;
}

.alert-success {
    background-color: #d1fae5;
    color: #065f46;
}

.alert-danger {
    background-color: #fee2e2;
    color: #991b1b;
}

.alert-info {
    background-color: #dbeafe;
    color: #1e40af;
}

/* Auth Forms */
.auth-wrapper {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 60vh;
}

.auth-box {
    background: var(--white);
    padding: 2.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    width: 100%;
    max-width: 400px;
}

.auth-box h2 {
    margin-bottom: 1.5rem;
    text-align: center;
    color: var(--text-color);
}

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

.form-label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: 500;
    color: var(--gray-500);
}

.form-control {
    width: 100%;
    padding: 0.75rem;
    border: 1px solid var(--gray-200);
    border-radius: 0.375rem;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-control:focus {
    outline: none;
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border: none;
    border-radius: 0.375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
    width: 100%;
    text-align: center;
}

.btn-primary {
    background-color: var(--primary-color);
    color: var(--white);
}

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

.form-check {
    display: flex;
    align-items: center;
    margin-bottom: 1.25rem;
}

.form-check-input {
    margin-right: 0.5rem;
}

.invalid-feedback {
    color: var(--danger);
    font-size: 0.875rem;
    margin-top: 0.25rem;
}

.auth-links {
    text-align: center;
    margin-top: 1rem;
    font-size: 0.875rem;
}

.home-container {
    text-align: center;
    margin-top: 4rem;
}

.home-container h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

/* Business Card Page */
.business-card-page {
    display: grid;
    grid-template-columns: 300px 1fr;
    gap: 2rem;
    align-items: start;
}

.card-form-section {
    background: var(--white);
    padding: 1.5rem;
    border-radius: 0.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.card-form-section h2 {
    margin-bottom: 1rem;
    font-size: 1.25rem;
}

.cards-display-section h1 {
    margin-bottom: 1.5rem;
}

.btn-sm {
    padding: 0.25rem 0.5rem;
    font-size: 0.875rem;
    width: auto;
}

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

.btn-danger:hover {
    background-color: #dc2626;
}

.btn-secondary {
    background-color: var(--gray-500);
    color: var(--white);
}

.btn-secondary:hover {
    background-color: #4b5563;
}

/* Tables */
.table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
    background-color: transparent;
}

.table th,
.table td {
    padding: 0.75rem;
    vertical-align: top;
    border-top: 1px solid var(--gray-200);
    text-align: left;
}

.table thead th {
    vertical-align: bottom;
    border-bottom: 2px solid var(--gray-200);
    font-weight: 600;
}

.table-bordered {
    border: 1px solid var(--gray-200);
}

.table-bordered th,
.table-bordered td {
    border: 1px solid var(--gray-200);
}

.table-striped tbody tr:nth-of-type(odd) {
    background-color: rgba(0, 0, 0, 0.05);
}

/* Business Cards Table - Owner Column Width */
.business-card-page .table th:nth-child(6),
.business-card-page .table td:nth-child(6) {
    min-width: 140px;
    white-space: nowrap;
}