:root {
  --bg: #0f1419;
  --bg-elevated: #1a2332;
  --bg-card: #1e2a3a;
  --bg-hover: #243447;
  --border: #2d3f56;
  --text: #e7eef7;
  --text-muted: #8b9cb3;
  --primary: #3b82f6;
  --primary-hover: #2563eb;
  --accent: #22d3ee;
  --success: #22c55e;
  --warning: #f59e0b;
  --danger: #ef4444;
  --info: #38bdf8;
  --radius: 10px;
  --shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
  --sidebar-w: 260px;
  --font: "Segoe UI", system-ui, -apple-system, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html, body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
}

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

a:hover {
  text-decoration: underline;
}

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

.sidebar {
  width: var(--sidebar-w);
  background: linear-gradient(180deg, #121a26 0%, #0d1219 100%);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  position: fixed;
  inset: 0 auto 0 0;
  z-index: 20;
}

.brand {
  padding: 1.25rem 1.25rem 1rem;
  border-bottom: 1px solid var(--border);
}

.brand-mark {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand-logo {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: linear-gradient(135deg, #3b82f6, #22d3ee);
  display: grid;
  place-items: center;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.5px;
}

.brand h1 {
  margin: 0;
  font-size: 1.1rem;
  font-weight: 700;
}

.brand p {
  margin: 0.15rem 0 0;
  font-size: 0.75rem;
  color: var(--text-muted);
}

.nav {
  padding: 1rem 0.75rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.nav a {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.7rem 0.85rem;
  border-radius: 8px;
  color: var(--text-muted);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.95rem;
}

.nav a:hover,
.nav a.active {
  background: var(--bg-hover);
  color: var(--text);
  text-decoration: none;
}

.nav a.active {
  box-shadow: inset 3px 0 0 var(--primary);
}

.sidebar-user {
  padding: 1rem 1.25rem;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
}

.sidebar-user strong {
  display: block;
}

.sidebar-user span {
  color: var(--text-muted);
  font-size: 0.8rem;
}

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

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 1.75rem;
  border-bottom: 1px solid var(--border);
  background: rgba(15, 20, 25, 0.85);
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.topbar h2 {
  margin: 0;
  font-size: 1.25rem;
}

.content {
  padding: 1.5rem 1.75rem 2.5rem;
}

/* Guest / login */
.guest-page {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 2rem;
  background:
    radial-gradient(ellipse at 20% 20%, rgba(59, 130, 246, 0.18), transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(34, 211, 238, 0.12), transparent 45%),
    var(--bg);
}

.login-card {
  width: 100%;
  max-width: 420px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 2rem;
  box-shadow: var(--shadow);
}

.login-card .brand-mark {
  margin-bottom: 1.5rem;
  justify-content: center;
}

.login-card h2 {
  text-align: center;
  margin: 0 0 0.35rem;
}

.login-card .subtitle {
  text-align: center;
  color: var(--text-muted);
  margin: 0 0 1.5rem;
  font-size: 0.9rem;
}

/* Cards & grids */
.grid {
  display: grid;
  gap: 1rem;
}

.grid-2 { grid-template-columns: repeat(2, 1fr); }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 1100px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  .sidebar { display: none; }
  .main { margin-left: 0; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .content, .topbar { padding-left: 1rem; padding-right: 1rem; }
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.15rem 1.25rem;
}

.card h3 {
  margin: 0 0 0.75rem;
  font-size: 0.95rem;
  color: var(--text-muted);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.stat-value {
  font-size: 1.85rem;
  font-weight: 700;
  line-height: 1.1;
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.85rem;
  margin-top: 0.25rem;
}

/* Tables */
.table-wrap {
  overflow-x: auto;
}

table.data {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.92rem;
}

table.data th,
table.data td {
  text-align: left;
  padding: 0.75rem 0.85rem;
  border-bottom: 1px solid var(--border);
  vertical-align: middle;
}

table.data th {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

table.data tr:hover td {
  background: rgba(255, 255, 255, 0.02);
}

table.data a {
  font-weight: 600;
}

/* Forms */
.form-row {
  display: grid;
  gap: 1rem;
  margin-bottom: 1rem;
}

.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
.form-row.cols-3 { grid-template-columns: 1fr 1fr 1fr; }

@media (max-width: 768px) {
  .form-row.cols-2,
  .form-row.cols-3 { grid-template-columns: 1fr; }
}

label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  margin-bottom: 0.35rem;
  color: var(--text-muted);
}

input[type="text"],
input[type="email"],
input[type="password"],
input[type="search"],
input[type="tel"],
select,
textarea {
  width: 100%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  border-radius: 8px;
  padding: 0.65rem 0.8rem;
  font: inherit;
}

input:focus,
select:focus,
textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.2);
}

textarea {
  min-height: 110px;
  resize: vertical;
}

.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: end;
  margin-bottom: 1rem;
}

.filters .field {
  min-width: 160px;
  flex: 1;
}

.filters .field.grow {
  flex: 2;
  min-width: 220px;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  border: 1px solid transparent;
  border-radius: 8px;
  padding: 0.55rem 1rem;
  font: inherit;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  text-decoration: none;
  background: var(--bg-hover);
  color: var(--text);
}

.btn:hover {
  filter: brightness(1.08);
  text-decoration: none;
}

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

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

.btn-danger {
  background: rgba(239, 68, 68, 0.15);
  border-color: rgba(239, 68, 68, 0.4);
  color: #fca5a5;
}

.btn-ghost {
  background: transparent;
  border-color: var(--border);
}

.btn-sm {
  padding: 0.35rem 0.7rem;
  font-size: 0.8rem;
}

.btn-block {
  width: 100%;
}

.btn-google {
  background: #fff;
  color: #1f2937;
  border: 1px solid #dadce0;
  font-weight: 600;
}

.btn-google:hover {
  background: #f8f9fa;
  filter: none;
}

.btn-google svg {
  flex-shrink: 0;
}

.login-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin: 1.15rem 0;
  color: var(--text-muted);
  font-size: 0.8rem;
}

.login-divider::before,
.login-divider::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

.login-divider span {
  white-space: nowrap;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}

/* Badges */
.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.02em;
  white-space: nowrap;
}

.badge-success { background: rgba(34, 197, 94, 0.18); color: #86efac; }
.badge-warning { background: rgba(245, 158, 11, 0.18); color: #fcd34d; }
.badge-danger { background: rgba(239, 68, 68, 0.18); color: #fca5a5; }
.badge-info { background: rgba(56, 189, 248, 0.18); color: #7dd3fc; }
.badge-primary { background: rgba(59, 130, 246, 0.2); color: #93c5fd; }
.badge-muted { background: rgba(139, 156, 179, 0.15); color: #a8b8cc; }

/* Alerts */
.alert {
  padding: 0.85rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  border: 1px solid transparent;
  font-size: 0.92rem;
}

.alert-success {
  background: rgba(34, 197, 94, 0.12);
  border-color: rgba(34, 197, 94, 0.35);
  color: #86efac;
}

.alert-error {
  background: rgba(239, 68, 68, 0.12);
  border-color: rgba(239, 68, 68, 0.35);
  color: #fca5a5;
}

/* Thread / mensajes */
.thread {
  display: flex;
  flex-direction: column;
  gap: 0.85rem;
}

.message {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.9rem 1rem;
}

.message-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 0.45rem;
  font-size: 0.8rem;
  color: var(--text-muted);
}

.message-body {
  white-space: pre-wrap;
  word-break: break-word;
}

.meta-list {
  display: grid;
  gap: 0.55rem;
  font-size: 0.92rem;
}

.meta-list dt {
  color: var(--text-muted);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  margin: 0;
}

.meta-list dd {
  margin: 0 0 0.35rem;
  font-weight: 600;
}

.empty {
  text-align: center;
  color: var(--text-muted);
  padding: 2rem 1rem;
}

.page-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  margin-bottom: 1.25rem;
}

.page-header p {
  margin: 0.25rem 0 0;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.stack-gap {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.muted { color: var(--text-muted); }
.text-sm { font-size: 0.85rem; }
.mt-1 { margin-top: 0.5rem; }
.mt-2 { margin-top: 1rem; }
.mb-0 { margin-bottom: 0; }
.mb-1 { margin-bottom: 0.5rem; }
.mb-2 { margin-bottom: 1rem; }

.checkbox-inline {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  margin-top: 1.5rem;
  color: var(--text-muted);
  font-size: 0.9rem;
}

.checkbox-inline input {
  width: auto;
}

.split {
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 1rem;
  align-items: start;
}

@media (max-width: 960px) {
  .split { grid-template-columns: 1fr; }
}

code.inline {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 0.1rem 0.4rem;
  border-radius: 4px;
  font-size: 0.85rem;
}