:root {
  --bg: #0f1117;
  --card: #1a1d27;
  --card2: #22252f;
  --border: #2a2d3a;
  --text: #e4e4e7;
  --muted: #9ca3af;
  --accent: #8b5cf6;
  --green: #22c55e;
  --yellow: #eab308;
  --red: #ef4444;
  --blue: #3b82f6;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
body { font-family: 'Inter', -apple-system, system-ui, sans-serif; background: var(--bg); color: var(--text); line-height: 1.5; min-height: 100vh; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }

/* Layout */
.container { max-width: 1200px; margin: 0 auto; padding: 24px; }
.nav { background: var(--card); border-bottom: 1px solid var(--border); padding: 12px 24px; display: flex; justify-content: space-between; align-items: center; }
.nav .logo { font-size: 18px; font-weight: 700; color: var(--text); display: flex; align-items: center; gap: 8px; }
.nav .logo span { color: var(--accent); }
.nav .user { display: flex; align-items: center; gap: 12px; font-size: 13px; color: var(--muted); }
.nav .user img { width: 32px; height: 32px; border-radius: 50%; }
.nav .user a { color: var(--muted); font-size: 12px; }

/* Login */
.login-container { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-box { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 48px; text-align: center; max-width: 400px; width: 100%; }
.login-box h1 { font-size: 28px; margin-bottom: 8px; }
.login-box h1 span { color: var(--accent); }
.login-box p { color: var(--muted); margin-bottom: 32px; font-size: 14px; }
.btn-google { display: inline-flex; align-items: center; gap: 10px; background: white; color: #333; border: none; border-radius: 8px; padding: 12px 24px; font-size: 15px; font-weight: 500; cursor: pointer; transition: box-shadow 0.2s; text-decoration: none; }
.btn-google:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.3); text-decoration: none; color: #333; }
.btn-google svg { width: 20px; height: 20px; }

/* Cards */
.card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; }
.card-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 16px; }
.card-header h2 { font-size: 18px; font-weight: 600; }

/* Report cards */
.reports-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr)); gap: 16px; margin-top: 16px; }
.report-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 20px; transition: border-color 0.2s, transform 0.2s; display: block; color: var(--text); }
.report-card:hover { border-color: var(--accent); transform: translateY(-2px); text-decoration: none; color: var(--text); }
.report-card .title { font-size: 16px; font-weight: 600; margin-bottom: 8px; }
.report-card .meta { display: flex; gap: 12px; font-size: 12px; color: var(--muted); }
.report-card .badge { display: inline-block; padding: 2px 8px; border-radius: 6px; font-size: 11px; font-weight: 600; }
.badge-evaluacion { background: rgba(139, 92, 246, 0.2); color: var(--accent); }
.badge-auditoria { background: rgba(59, 130, 246, 0.2); color: var(--blue); }
.badge-mensual { background: rgba(34, 197, 94, 0.2); color: var(--green); }

/* Client cards (admin) */
.clients-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 12px; margin-top: 16px; }
.client-card { background: var(--card); border: 1px solid var(--border); border-radius: 12px; padding: 16px; display: block; color: var(--text); transition: border-color 0.2s; }
.client-card:hover { border-color: var(--accent); text-decoration: none; color: var(--text); }
.client-card .name { font-size: 16px; font-weight: 600; margin-bottom: 4px; }
.client-card .info { font-size: 12px; color: var(--muted); }

/* Forms */
.form-group { margin-bottom: 16px; }
.form-group label { display: block; font-size: 13px; color: var(--muted); margin-bottom: 4px; }
.form-group input, .form-group select { width: 100%; padding: 10px 12px; background: var(--bg); border: 1px solid var(--border); border-radius: 8px; color: var(--text); font-size: 14px; }
.form-group input:focus, .form-group select:focus { outline: none; border-color: var(--accent); }
.btn { display: inline-flex; align-items: center; gap: 6px; padding: 10px 20px; border-radius: 8px; font-size: 14px; font-weight: 500; cursor: pointer; border: none; transition: opacity 0.2s; }
.btn-primary { background: var(--accent); color: white; }
.btn-primary:hover { opacity: 0.9; }
.btn-secondary { background: var(--card2); color: var(--text); border: 1px solid var(--border); }
.btn-sm { padding: 6px 12px; font-size: 12px; }

/* No access */
.no-access { text-align: center; padding: 80px 24px; }
.no-access h2 { font-size: 24px; margin-bottom: 12px; }
.no-access p { color: var(--muted); font-size: 15px; }

/* Modal */
.modal-overlay { display: none; position: fixed; top: 0; left: 0; right: 0; bottom: 0; background: rgba(0,0,0,.6); z-index: 1000; align-items: center; justify-content: center; }
.modal-overlay.active { display: flex; }
.modal { background: var(--card); border: 1px solid var(--border); border-radius: 16px; padding: 24px; max-width: 600px; width: 90%; max-height: 80vh; overflow-y: auto; }
.modal h3 { font-size: 18px; margin-bottom: 16px; }
.modal .close { float: right; cursor: pointer; color: var(--muted); font-size: 20px; }

/* Page header */
.page-header { display: flex; justify-content: space-between; align-items: center; margin-bottom: 24px; flex-wrap: wrap; gap: 12px; }
.page-header h1 { font-size: 24px; font-weight: 700; }
.page-header .subtitle { color: var(--muted); font-size: 14px; }

/* Empty state */
.empty { text-align: center; padding: 48px; color: var(--muted); }
.empty .icon { font-size: 48px; margin-bottom: 12px; }