/* InvoiceForge – HTMX Admin UI */

:root {
    --primary: #2563eb;
    --primary-hover: #1d4ed8;
    --success: #16a34a;
    --error: #dc2626;
    --warning: #d97706;
    --bg: #f8fafc;
    --card-bg: #ffffff;
    --text: #1e293b;
    --text-muted: #64748b;
    --border: #e2e8f0;
    --radius: 8px;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Navbar */
.navbar {
    background: var(--card-bg);
    border-bottom: 1px solid var(--border);
    padding: 0.75rem 0;
    position: sticky;
    top: 0;
    z-index: 100;
}

.navbar .container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.brand {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
}

.nav-links { display: flex; gap: 1.25rem; }

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.9rem;
    padding: 0.25rem 0;
    border-bottom: 2px solid transparent;
    transition: all 0.15s;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--primary);
    border-bottom-color: var(--primary);
}

/* Main content */
main { padding: 2rem 0; min-height: calc(100vh - 160px); }

h1 { font-size: 1.75rem; margin-bottom: 1.5rem; }
h2 { font-size: 1.25rem; margin-bottom: 1rem; }
h3 { font-size: 1.1rem; margin-bottom: 0.75rem; }

/* Cards */
.card {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.5rem;
    margin-bottom: 1rem;
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1rem;
}

.result-card.success { border-left: 4px solid var(--success); }
.result-card.error { border-left: 4px solid var(--error); }

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.375rem;
    font-size: 0.9rem;
}

.form-group small {
    display: block;
    color: var(--text-muted);
    font-size: 0.8rem;
    margin-top: 0.25rem;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

input[type="file"],
input[type="text"],
select,
textarea {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-size: 0.9rem;
    background: var(--bg);
    transition: border-color 0.15s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

textarea {
    font-family: 'Fira Code', 'Cascadia Code', monospace;
    font-size: 0.8rem;
    resize: vertical;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1.25rem;
    border: none;
    border-radius: var(--radius);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    text-decoration: none;
    transition: all 0.15s;
}

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

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

/* Table */
.table {
    width: 100%;
    border-collapse: collapse;
}

.table th, .table td {
    padding: 0.625rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    font-size: 0.9rem;
}

.table th {
    font-weight: 600;
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.025em;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 0.125rem 0.5rem;
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
}

.badge-success { background: #dcfce7; color: #166534; }
.badge-error { background: #fee2e2; color: #991b1b; }
.badge-warning { background: #fef3c7; color: #92400e; }

/* Lists */
.error-list li { color: var(--error); margin-bottom: 0.25rem; }
.warning-list li { color: var(--warning); margin-bottom: 0.25rem; }

/* Code */
pre {
    background: #1e293b;
    color: #e2e8f0;
    padding: 1rem;
    border-radius: var(--radius);
    overflow-x: auto;
    font-size: 0.8rem;
    margin-top: 0.5rem;
}

details summary {
    cursor: pointer;
    font-weight: 500;
    color: var(--primary);
}

/* HTMX indicator */
.spinner {
    display: none;
    width: 14px;
    height: 14px;
    border: 2px solid transparent;
    border-top: 2px solid currentColor;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}

.htmx-request .spinner { display: inline-block; }

@keyframes spin { to { transform: rotate(360deg); } }

/* Footer */
.footer {
    text-align: center;
    padding: 1.5rem 0;
    color: var(--text-muted);
    font-size: 0.8rem;
    border-top: 1px solid var(--border);
}

/* Responsive */
@media (max-width: 768px) {
    .form-row { grid-template-columns: 1fr; }
    .nav-links { gap: 0.75rem; font-size: 0.8rem; }
}