/* ── Reset & Base ───────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --color-bg: #f5f5f5;
    --color-surface: #ffffff;
    --color-primary: #2563eb;
    --color-primary-hover: #1d4ed8;
    --color-text: #1e293b;
    --color-text-muted: #64748b;
    --color-border: #e2e8f0;
    --color-success: #16a34a;
    --color-error: #dc2626;
    --color-warning: #d97706;
    --radius: 8px;
    --shadow: 0 1px 3px rgba(0,0,0,0.1);
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    font-size: 1rem;
    background: var(--color-bg);
    color: var(--color-text);
    line-height: 1.6;
    min-height: 100vh;
}

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

/* ── Navbar ─────────────────────────────────────────────────────────────── */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 1.5rem;
    height: 56px;
    background: var(--color-surface);
    border-bottom: 1px solid var(--color-border);
    box-shadow: var(--shadow);
}

.navbar-brand a {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 700;
    font-size: 1.25rem;
    color: var(--color-text);
}
.navbar-brand a:hover { text-decoration: none; }
.navbar-logo { height: 28px; width: 28px; }

.navbar-links { display: flex; gap: 1rem; }
.nav-link {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius);
    color: var(--color-text-muted);
    font-size: 1rem;
}
.nav-link:hover { background: var(--color-bg); color: var(--color-text); text-decoration: none; }

.navbar-user { display: flex; align-items: center; }

/* ── Main Content ───────────────────────────────────────────────────────── */
#content {
    max-width: 960px;
    margin: 2rem auto;
    padding: 0 1.5rem;
}

.page-header { margin-bottom: 2rem; }
.page-header h1 { font-size: 2rem; margin-bottom: 0.25rem; }
.page-header p { color: var(--color-text-muted); font-size: 1.05rem; }

/* ── Cards ──────────────────────────────────────────────────────────────── */
.card {
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    margin-bottom: 1.5rem;
}
.card-header { padding: 1rem 1.5rem; border-bottom: 1px solid var(--color-border); }
.card-header h2 { font-size: 1.25rem; }
.card-body { padding: 1.5rem; }
.card-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--color-border);
    display: flex;
    gap: 0.75rem;
}

/* ── Module Grid (Dashboard) ────────────────────────────────────────────── */
.module-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
}

.module-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    transition: transform 0.15s, box-shadow 0.15s;
    color: var(--color-text);
}
.module-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    text-decoration: none;
}
.module-card-disabled {
    opacity: 0.5;
    pointer-events: none;
}
.module-icon { font-size: 2.5rem; margin-bottom: 0.75rem; }
.module-card h2 { font-size: 1.2rem; margin-bottom: 0.5rem; }
.module-card p { font-size: 0.95rem; color: var(--color-text-muted); }

/* ── Forms ──────────────────────────────────────────────────────────────── */
.form-group { margin-bottom: 1.25rem; }
.form-group label {
    display: block;
    font-weight: 600;
    font-size: 1rem;
    margin-bottom: 0.35rem;
}
.form-hint { display: block; font-size: 0.875rem; color: var(--color-text-muted); margin-top: 0.25rem; }

input[type="text"], input[type="email"], input[type="password"],
input[type="number"], input[type="file"], select, textarea {
    width: 100%;
    padding: 0.6rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    font-size: 1rem;
    font-family: inherit;
    background: var(--color-surface);
    transition: border-color 0.15s;
}
input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(37,99,235,0.1);
}

.radio-group { display: flex; flex-direction: column; gap: 0.5rem; margin-top: 0.5rem; }
.radio-label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-weight: 400;
    cursor: pointer;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
}
.radio-label:hover { background: var(--color-bg); }
.radio-label input[type="radio"] { width: auto; }

.merge-options {
    background: var(--color-bg);
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
}

/* ── Buttons ────────────────────────────────────────────────────────────── */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.6rem 1.25rem;
    border: 1px solid transparent;
    border-radius: var(--radius);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
    text-decoration: none;
    font-family: inherit;
}
.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; text-decoration: none; }
.btn-secondary { background: var(--color-bg); color: var(--color-text); border-color: var(--color-border); }
.btn-secondary:hover { background: var(--color-border); text-decoration: none; }
.btn-ghost { background: transparent; color: var(--color-text-muted); }
.btn-ghost:hover { background: var(--color-bg); }
.btn-sm { padding: 0.35rem 0.75rem; font-size: 0.875rem; }
.btn-full { width: 100%; justify-content: center; }

/* ── Badges ─────────────────────────────────────────────────────────────── */
.badge {
    display: inline-block;
    padding: 0.2rem 0.65rem;
    border-radius: 999px;
    font-size: 0.85rem;
    font-weight: 600;
}
.badge-pass { background: #dcfce7; color: var(--color-success); }
.badge-fail { background: #fee2e2; color: var(--color-error); }
.badge-muted { background: var(--color-bg); color: var(--color-text-muted); }

/* ── Alerts ─────────────────────────────────────────────────────────────── */
.alert {
    padding: 0.75rem 1rem;
    border-radius: var(--radius);
    margin-bottom: 1rem;
    font-size: 1rem;
}
.alert-error { background: #fee2e2; color: var(--color-error); border: 1px solid #fecaca; }
.alert-success { background: #dcfce7; color: var(--color-success); border: 1px solid #bbf7d0; }

/* ── Progress ───────────────────────────────────────────────────────────── */
.progress-wrapper {
    display: flex;
    align-items: center;
    gap: 1rem;
    margin-bottom: 0.5rem;
}
.progress-bar {
    flex: 1;
    height: 14px;
    background: var(--color-bg);
    border-radius: 999px;
    overflow: hidden;
}
.progress-fill {
    height: 100%;
    background: var(--color-primary);
    border-radius: 999px;
    transition: width 0.3s ease;
}
.progress-text { font-weight: 600; font-size: 1rem; min-width: 3rem; }
.status-text { color: var(--color-text-muted); font-size: 0.95rem; }

/* ── Report ─────────────────────────────────────────────────────────────── */
.report-card { margin-bottom: 1.5rem; }
.report-card h3 { font-size: 1.1rem; margin-bottom: 0.75rem; }

.adjustments-list { margin-bottom: 1rem; }
.adjustments-list ul { margin-left: 1.25rem; font-size: 0.95rem; }
.adjustments-list li { margin-bottom: 0.25rem; }

.report-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.95rem;
    margin-bottom: 1rem;
}
.report-table th, .report-table td {
    padding: 0.5rem 0.75rem;
    text-align: left;
    border-bottom: 1px solid var(--color-border);
}
.report-table th { font-weight: 600; background: var(--color-bg); }
.report-summary { margin-top: 0.5rem; }

.result-item { padding: 1rem 0; }
.result-actions { margin-top: 0.75rem; }
.batch-download { margin-bottom: 1.5rem; }

.file-info {
    background: var(--color-bg);
    padding: 1rem;
    border-radius: var(--radius);
    margin-bottom: 1.25rem;
    font-size: 0.95rem;
}
.file-info ul { margin-left: 1.25rem; }

/* ── Spinner (HTMX indicator) ───────────────────────────────────────────── */
.htmx-indicator { display: none; }
.htmx-request .htmx-indicator { display: inline-block; }
.spinner {
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255,255,255,0.3);
    border-top-color: #fff;
    border-radius: 50%;
    animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.htmx-request .btn-text { opacity: 0.7; }

/* ── Login ──────────────────────────────────────────────────────────────── */
.login-page {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    background: var(--color-bg);
}
.login-card {
    width: 100%;
    max-width: 400px;
    background: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem;
}
.login-header {
    text-align: center;
    margin-bottom: 1.5rem;
}
.login-logo { height: 48px; width: 48px; margin-bottom: 0.75rem; }
.login-header h1 { font-size: 1.4rem; }

/* ── Utilities ──────────────────────────────────────────────────────────── */
.text-muted { color: var(--color-text-muted); }

/* ── Toast ──────────────────────────────────────────────────────────────── */
.toast-container {
    position: fixed;
    top: 1rem;
    right: 1rem;
    z-index: 1000;
}
hr { border: none; border-top: 1px solid var(--color-border); margin: 1rem 0; }

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 640px) {
    #content { padding: 0 1rem; margin: 1rem auto; }
    .navbar { padding: 0 1rem; }
    .module-grid { grid-template-columns: 1fr; }
}