/* MasterMail — Panel de administración — sistema de diseño
   Sin dependencias externas de JS. Tipografía vía Google Fonts (Inter). */

:root {
  --color-bg: #f6f7fb;
  --color-surface: #ffffff;
  --color-border: #e5e7eb;
  --color-border-strong: #d1d5db;

  --color-text: #111827;
  --color-text-muted: #6b7280;
  --color-text-subtle: #9ca3af;

  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-soft: #eef2ff;

  --color-success: #16a34a;
  --color-success-soft: #dcfce7;
  --color-danger: #dc2626;
  --color-danger-soft: #fee2e2;
  --color-warning: #d97706;
  --color-warning-soft: #fef3c7;
  --color-info: #0284c7;
  --color-info-soft: #e0f2fe;

  --sidebar-bg: #0f172a;
  --sidebar-bg-active: #1e293b;
  --sidebar-text: #cbd5e1;
  --sidebar-text-active: #ffffff;
  --sidebar-width: 248px;
  --topbar-height: 64px;

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 12px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 12px 32px rgba(15, 23, 42, 0.16);

  --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  height: 100%;
}

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3, h4 { margin: 0 0 4px; font-weight: 600; letter-spacing: -0.01em; }
h1 { font-size: 22px; }
h2 { font-size: 18px; }
h3 { font-size: 15px; }
p { margin: 0 0 8px; }

.text-muted { color: var(--color-text-muted); }
.text-subtle { color: var(--color-text-subtle); }
.text-danger { color: var(--color-danger); }
.text-success { color: var(--color-success); }

/* ── Layout de login ─────────────────────────────────────────────────── */

.login-screen {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: radial-gradient(circle at top left, #1e1b4b, #0f172a 60%);
  padding: 24px;
}

.login-card {
  width: 100%;
  max-width: 380px;
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 36px 32px;
}

.login-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}

.login-logo .logo-mark {
  width: 36px; height: 36px;
  border-radius: 10px;
  background: linear-gradient(135deg, var(--color-primary), #818cf8);
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: 16px;
}

/* ── Shell del panel ─────────────────────────────────────────────────── */

.app-shell {
  display: flex;
  min-height: 100vh;
}

.sidebar {
  width: var(--sidebar-width);
  flex-shrink: 0;
  background: var(--sidebar-bg);
  color: var(--sidebar-text);
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 0; bottom: 0; left: 0;
  overflow-y: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 20px 20px 16px;
  color: #fff;
  font-weight: 700;
  font-size: 16px;
}

.sidebar-brand .logo-mark {
  width: 30px; height: 30px;
  border-radius: 8px;
  background: linear-gradient(135deg, var(--color-primary), #818cf8);
  display: flex; align-items: center; justify-content: center;
  font-size: 14px;
}

.sidebar-section {
  padding: 12px 16px 6px;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: #64748b;
  font-weight: 600;
}

.sidebar-nav { list-style: none; margin: 0; padding: 0 8px; }

.sidebar-nav a {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 9px 12px;
  border-radius: var(--radius-sm);
  color: var(--sidebar-text);
  font-size: 13.5px;
  font-weight: 500;
  text-decoration: none;
  margin-bottom: 2px;
}

.sidebar-nav a .icon { font-size: 15px; width: 18px; text-align: center; }

.sidebar-nav a:hover { background: rgba(255,255,255,0.06); color: #fff; }

.sidebar-nav a.active {
  background: var(--color-primary);
  color: #fff;
}

.sidebar-footer {
  margin-top: auto;
  padding: 14px 16px;
  border-top: 1px solid rgba(255,255,255,0.08);
  font-size: 12.5px;
}

.sidebar-user { display: flex; align-items: center; gap: 10px; margin-bottom: 10px; }

.sidebar-user .avatar {
  width: 32px; height: 32px; border-radius: 50%;
  background: var(--color-primary-soft); color: var(--color-primary);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; flex-shrink: 0;
}

.sidebar-user .name { color: #fff; font-weight: 600; font-size: 13px; }
.sidebar-user .role { color: #94a3b8; font-size: 11.5px; text-transform: capitalize; }

.main-area {
  margin-left: var(--sidebar-width);
  flex: 1;
  min-width: 0;
  display: flex;
  flex-direction: column;
}

.topbar {
  height: var(--topbar-height);
  border-bottom: 1px solid var(--color-border);
  background: var(--color-surface);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  position: sticky;
  top: 0;
  z-index: 20;
}

.topbar-title { font-size: 17px; font-weight: 700; }
.topbar-actions { display: flex; align-items: center; gap: 10px; }

.page-content {
  padding: 28px;
  flex: 1;
}

.page-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 20px;
  gap: 16px;
  flex-wrap: wrap;
}

/* ── Botones ──────────────────────────────────────────────────────────── */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 14px;
  font-size: 13.5px;
  font-weight: 600;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  cursor: pointer;
  font-family: inherit;
  transition: background 0.12s ease, border-color 0.12s ease;
  white-space: nowrap;
}

.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-primary { background: var(--color-primary); color: #fff; }
.btn-primary:hover:not(:disabled) { background: var(--color-primary-hover); }

.btn-secondary { background: var(--color-surface); color: var(--color-text); border-color: var(--color-border-strong); }
.btn-secondary:hover:not(:disabled) { background: #f3f4f6; }

.btn-danger { background: var(--color-danger); color: #fff; }
.btn-danger:hover:not(:disabled) { background: #b91c1c; }

.btn-ghost { background: transparent; color: var(--color-text-muted); }
.btn-ghost:hover:not(:disabled) { background: #f3f4f6; color: var(--color-text); }

.btn-sm { padding: 5px 10px; font-size: 12.5px; }
.btn-block { width: 100%; justify-content: center; }
.btn-icon { padding: 6px; }

/* ── Formularios ──────────────────────────────────────────────────────── */

.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 12.5px;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 6px;
}

.form-hint { font-size: 12px; color: var(--color-text-subtle); margin-top: 4px; }

.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 9px 12px;
  font-size: 13.5px;
  font-family: inherit;
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-sm);
  background: var(--color-surface);
  color: var(--color-text);
  outline: none;
  transition: border-color 0.12s ease, box-shadow 0.12s ease;
}

.form-input:focus, .form-select:focus, .form-textarea:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px var(--color-primary-soft);
}

.form-textarea { resize: vertical; min-height: 90px; font-family: 'SFMono-Regular', Consolas, monospace; }

.form-row { display: flex; gap: 14px; }
.form-row .form-group { flex: 1; }

.form-error {
  background: var(--color-danger-soft);
  color: var(--color-danger);
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 13px;
  margin-bottom: 16px;
}

.checkbox-row { display: flex; align-items: center; gap: 8px; }
.checkbox-row input { width: 16px; height: 16px; }

/* ── Cards ────────────────────────────────────────────────────────────── */

.card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
}

.card-header {
  padding: 16px 20px;
  border-bottom: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.card-body { padding: 20px; }

.stat-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 18px 20px;
  box-shadow: var(--shadow-sm);
}

.stat-card .stat-label {
  font-size: 12px;
  color: var(--color-text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin-bottom: 6px;
}

.stat-card .stat-value { font-size: 26px; font-weight: 700; letter-spacing: -0.02em; }
.stat-card .stat-sub { font-size: 12px; color: var(--color-text-subtle); margin-top: 4px; }

/* ── Tablas ───────────────────────────────────────────────────────────── */

.table-wrap {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

table.data-table { width: 100%; border-collapse: collapse; }

.data-table thead th {
  text-align: left;
  font-size: 11.5px;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--color-text-muted);
  font-weight: 600;
  padding: 12px 16px;
  background: #fafafa;
  border-bottom: 1px solid var(--color-border);
  white-space: nowrap;
}

.data-table tbody td {
  padding: 13px 16px;
  border-bottom: 1px solid var(--color-border);
  font-size: 13.5px;
  vertical-align: middle;
}

.data-table tbody tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: #fafbff; }

.table-actions { display: flex; gap: 6px; justify-content: flex-end; }

.table-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 14px 16px;
  border-bottom: 1px solid var(--color-border);
  flex-wrap: wrap;
}

.table-toolbar .form-input { max-width: 260px; }

.table-empty, .table-loading {
  padding: 48px 20px;
  text-align: center;
  color: var(--color-text-subtle);
  font-size: 13.5px;
}

.pagination {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-top: 1px solid var(--color-border);
  font-size: 12.5px;
  color: var(--color-text-muted);
}

.pagination .pager-controls { display: flex; gap: 6px; }

/* ── Badges ───────────────────────────────────────────────────────────── */

.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 9px;
  border-radius: 999px;
  font-size: 11.5px;
  font-weight: 700;
  text-transform: capitalize;
  white-space: nowrap;
}

.badge-neutral { background: #f1f5f9; color: #475569; }
.badge-success { background: var(--color-success-soft); color: var(--color-success); }
.badge-danger  { background: var(--color-danger-soft);  color: var(--color-danger); }
.badge-warning { background: var(--color-warning-soft); color: var(--color-warning); }
.badge-info    { background: var(--color-info-soft);    color: var(--color-info); }
.badge-primary { background: var(--color-primary-soft); color: var(--color-primary); }

/* ── Modal ────────────────────────────────────────────────────────────── */

.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(15, 23, 42, 0.5);
  display: flex; align-items: flex-start; justify-content: center;
  padding: 48px 16px;
  z-index: 100;
  overflow-y: auto;
}

.modal {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  width: 100%;
  max-width: 560px;
}

.modal.modal-lg { max-width: 760px; }

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 18px 22px;
  border-bottom: 1px solid var(--color-border);
}

.modal-body { padding: 22px; max-height: 65vh; overflow-y: auto; }

.modal-footer {
  padding: 16px 22px;
  border-top: 1px solid var(--color-border);
  display: flex; justify-content: flex-end; gap: 8px;
}

.modal-close {
  background: none; border: none; font-size: 20px; cursor: pointer;
  color: var(--color-text-subtle); line-height: 1;
}

/* ── Toasts ───────────────────────────────────────────────────────────── */

.toast-container {
  position: fixed;
  bottom: 20px;
  right: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  z-index: 200;
}

.toast {
  min-width: 260px;
  max-width: 360px;
  background: var(--color-text);
  color: #fff;
  padding: 12px 16px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-lg);
  font-size: 13px;
  display: flex;
  align-items: center;
  gap: 8px;
  animation: toast-in 0.15s ease;
}

.toast.toast-success { background: var(--color-success); }
.toast.toast-danger { background: var(--color-danger); }

@keyframes toast-in {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

/* ── Utilidades ───────────────────────────────────────────────────────── */

.flex { display: flex; }
.flex-col { flex-direction: column; }
.items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-8 { gap: 8px; }
.gap-12 { gap: 12px; }
.gap-16 { gap: 16px; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mb-16 { margin-bottom: 16px; }
.w-full { width: 100%; }

.spinner {
  width: 18px; height: 18px;
  border: 2.5px solid var(--color-border);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
  display: inline-block;
}

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

.code-inline {
  font-family: 'SFMono-Regular', Consolas, monospace;
  font-size: 12.5px;
  background: #f1f5f9;
  padding: 2px 6px;
  border-radius: 4px;
}

.empty-state {
  text-align: center;
  padding: 60px 20px;
  color: var(--color-text-subtle);
}

.empty-state .icon { font-size: 32px; margin-bottom: 10px; opacity: 0.6; }