/* PRISMA — Sistema de diseño
   Futurista pero cálido: fondos oscuros profundos, acentos en gradiente
   cian→violeta, tarjetas con vidrio esmerilado, tipografía Inter/Sora. */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Sora:wght@600;700;800&display=swap');

:root {
  /* Paleta base — modo oscuro (por defecto) */
  --bg-0: #05070d;
  --bg-1: #0b0f1a;
  --bg-2: #121729;
  --bg-3: #1a2036;
  --surface: rgba(255, 255, 255, 0.04);
  --surface-hover: rgba(255, 255, 255, 0.07);
  --border: rgba(255, 255, 255, 0.09);
  --border-strong: rgba(255, 255, 255, 0.16);

  --text-primary: #eef1fb;
  --text-secondary: #9aa3c0;
  --text-muted: #6b7394;

  --accent-cian: #4ee1ff;
  --accent-violeta: #9b6bff;
  --accent-gradient: linear-gradient(135deg, var(--accent-cian), var(--accent-violeta));

  --critica: #ff4d6d;
  --alta: #ff9f43;
  --media: #ffd166;
  --baja: #4ecb71;
  --info: #4ee1ff;

  --critica-bg: rgba(255, 77, 109, 0.14);
  --alta-bg: rgba(255, 159, 67, 0.14);
  --media-bg: rgba(255, 209, 102, 0.14);
  --baja-bg: rgba(78, 203, 113, 0.14);
  --info-bg: rgba(78, 225, 255, 0.14);

  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --shadow-card: 0 8px 32px rgba(0, 0, 0, 0.35);
  --shadow-glow: 0 0 40px rgba(78, 225, 255, 0.08);

  --font-display: 'Sora', 'Inter', system-ui, sans-serif;
  --font-body: 'Inter', system-ui, sans-serif;

  color-scheme: dark;
}

:root[data-theme="light"] {
  --bg-0: #f4f6fb;
  --bg-1: #ffffff;
  --bg-2: #eef1fb;
  --bg-3: #e4e9fa;
  --surface: rgba(20, 25, 45, 0.03);
  --surface-hover: rgba(20, 25, 45, 0.06);
  --border: rgba(20, 25, 45, 0.09);
  --border-strong: rgba(20, 25, 45, 0.16);
  --text-primary: #12162a;
  --text-secondary: #4b5171;
  --text-muted: #7a80a0;
  color-scheme: light;
}

* { box-sizing: border-box; }

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

body {
  background-image:
    radial-gradient(circle at 15% 0%, rgba(78, 225, 255, 0.08), transparent 40%),
    radial-gradient(circle at 85% 20%, rgba(155, 107, 255, 0.08), transparent 45%);
  background-attachment: fixed;
}

h1, h2, h3, h4 { font-family: var(--font-display); margin: 0; letter-spacing: -0.01em; }

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

.hidden { display: none !important; }

/* ---------- Layout ---------- */
.app-shell {
  display: grid;
  grid-template-columns: 260px 1fr;
  min-height: 100vh;
}

@media (max-width: 880px) {
  .app-shell { grid-template-columns: 1fr; }
  .sidebar { display: none; }
  .sidebar.open { display: flex; position: fixed; inset: 0 20% 0 0; z-index: 50; }
}

.sidebar {
  background: var(--bg-1);
  border-right: 1px solid var(--border);
  padding: 24px 18px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 0 8px 24px;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 20px;
}

.brand .dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent-gradient);
  box-shadow: var(--shadow-glow);
}

.nav-link {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 11px 12px;
  border-radius: var(--radius-sm);
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 14px;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.nav-link:hover { background: var(--surface-hover); color: var(--text-primary); }
.nav-link.active { background: var(--surface); color: var(--text-primary); box-shadow: inset 2px 0 0 var(--accent-cian); }
.nav-link .icon { font-size: 16px; width: 20px; text-align: center; }

.nav-section-label {
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  padding: 18px 12px 6px;
}

.main {
  padding: 28px 36px 60px;
  max-width: 1280px;
  width: 100%;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 28px;
  gap: 16px;
}

.topbar h1 { font-size: 26px; }
.topbar .subtitle { color: var(--text-secondary); font-size: 14px; margin-top: 4px; }

.user-chip {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 6px 10px 6px 6px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 13px;
  cursor: pointer;
}

.avatar {
  width: 30px; height: 30px; border-radius: 50%;
  background: var(--accent-gradient);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 13px; color: #05070d;
}

/* ---------- Cards ---------- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.card-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 14px;
}

.card-header h3 { font-size: 15px; font-weight: 700; }
.card-header .count { color: var(--text-muted); font-size: 13px; }

.grid {
  display: grid;
  gap: 18px;
}

.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: 1000px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .main { padding: 20px 16px 48px; }
}

/* ---------- Stat tiles ---------- */
.stat-tile {
  padding: 18px;
  border-radius: var(--radius-md);
  background: var(--surface);
  border: 1px solid var(--border);
}
.stat-tile .value { font-family: var(--font-display); font-size: 28px; font-weight: 800; }
.stat-tile .label { color: var(--text-secondary); font-size: 13px; margin-top: 2px; }

/* ---------- Priority badges ---------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
}
.badge::before { content: ''; width: 7px; height: 7px; border-radius: 50%; }

.badge-CRITICA { background: var(--critica-bg); color: var(--critica); }
.badge-CRITICA::before { background: var(--critica); }
.badge-ALTA { background: var(--alta-bg); color: var(--alta); }
.badge-ALTA::before { background: var(--alta); }
.badge-MEDIA { background: var(--media-bg); color: var(--media); }
.badge-MEDIA::before { background: var(--media); }
.badge-BAJA { background: var(--baja-bg); color: var(--baja); }
.badge-BAJA::before { background: var(--baja); }

/* ---------- Activity rows ---------- */
.activity-row {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 12px;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: background 0.15s, border-color 0.15s;
  cursor: pointer;
}
.activity-row:hover { background: var(--surface-hover); border-color: var(--border); }
.activity-row .title { font-weight: 600; font-size: 14px; }
.activity-row .meta { color: var(--text-muted); font-size: 12px; margin-top: 2px; }
.activity-row .spacer { flex: 1; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--surface);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 14px;
  cursor: pointer;
  transition: transform 0.1s, background 0.15s;
}
.btn:hover { background: var(--surface-hover); }
.btn:active { transform: scale(0.98); }

.btn-primary {
  background: var(--accent-gradient);
  border: none;
  color: #05070d;
}
.btn-primary:hover { filter: brightness(1.08); }

.btn-danger { border-color: rgba(255,77,109,0.4); color: var(--critica); }
.btn-sm { padding: 6px 12px; font-size: 13px; }
.btn-icon { width: 36px; height: 36px; padding: 0; border-radius: 50%; }

/* ---------- Forms ---------- */
label { font-size: 13px; font-weight: 600; color: var(--text-secondary); display: block; margin-bottom: 6px; }

input, select, textarea {
  width: 100%;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-strong);
  background: var(--bg-2);
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 14px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent-cian);
  box-shadow: 0 0 0 3px rgba(78, 225, 255, 0.15);
}

.field { margin-bottom: 16px; }
.field-row { display: flex; gap: 12px; }
.field-row .field { flex: 1; }

/* ---------- Modal ---------- */
.modal-backdrop {
  position: fixed; inset: 0;
  background: rgba(3, 5, 12, 0.6);
  backdrop-filter: blur(4px);
  display: flex; align-items: center; justify-content: center;
  z-index: 100;
  padding: 20px;
}

.modal {
  background: var(--bg-1);
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-lg);
  padding: 26px;
  width: 100%;
  max-width: 520px;
  max-height: 88vh;
  overflow-y: auto;
  box-shadow: var(--shadow-card);
}

.modal-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 20px;
}

/* ---------- Auth page ---------- */
.auth-page {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}
.auth-card {
  width: 100%;
  max-width: 400px;
  padding: 36px 32px;
}
.auth-logo {
  text-align: center;
  margin-bottom: 28px;
}
.auth-logo .dot { margin: 0 auto 14px; width: 46px; height: 46px; border-radius: 14px; }
.auth-logo h1 { font-size: 24px; }
.auth-logo p { color: var(--text-secondary); font-size: 13px; margin-top: 6px; }
.auth-error {
  background: var(--critica-bg); color: var(--critica);
  padding: 10px 12px; border-radius: var(--radius-sm); font-size: 13px; margin-bottom: 16px;
}
.auth-switch { text-align: center; margin-top: 18px; font-size: 13px; color: var(--text-secondary); }

/* ---------- Empty / loading states ---------- */
.empty-state { text-align: center; padding: 40px 20px; color: var(--text-muted); }
.empty-state .icon { font-size: 32px; margin-bottom: 10px; }

.skeleton {
  background: linear-gradient(90deg, var(--surface) 25%, var(--surface-hover) 37%, var(--surface) 63%);
  background-size: 400% 100%;
  animation: skeleton-loading 1.4s ease infinite;
  border-radius: var(--radius-sm);
}
@keyframes skeleton-loading { 0% { background-position: 100% 50%; } 100% { background-position: 0 50%; } }

/* ---------- Progress bar ---------- */
.progress-track {
  height: 8px; border-radius: 999px; background: var(--bg-3); overflow: hidden;
}
.progress-fill { height: 100%; background: var(--accent-gradient); border-radius: 999px; transition: width 0.3s; }
.progress-fill.over { background: linear-gradient(135deg, var(--alta), var(--critica)); }

/* ---------- Toast ---------- */
#toast-container {
  position: fixed; bottom: 24px; right: 24px; z-index: 200;
  display: flex; flex-direction: column; gap: 10px;
}
.toast {
  background: var(--bg-1); border: 1px solid var(--border-strong);
  padding: 12px 16px; border-radius: var(--radius-sm);
  font-size: 13px; box-shadow: var(--shadow-card);
  animation: toast-in 0.2s ease;
}
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }