:root {
  --bg-deep: #0a0e1a;
  --bg-mid: #0f1628;
  --cyan: #00e5ff;
  --purple: #7c4dff;
  --magenta: #e040fb;
  --text: #e8ecf5;
  --text-dim: #8a93a8;
  --glass: rgba(255, 255, 255, 0.04);
  --glass-border: rgba(255, 255, 255, 0.08);
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font-family: 'Segoe UI', 'Inter', system-ui, sans-serif;
  background: var(--bg-deep);
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
}

/* Fondo animado con grid y glow */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  background:
    radial-gradient(circle at 20% 20%, rgba(124, 77, 255, 0.15), transparent 40%),
    radial-gradient(circle at 80% 70%, rgba(0, 229, 255, 0.12), transparent 40%),
    radial-gradient(circle at 50% 100%, rgba(224, 64, 251, 0.1), transparent 50%);
  z-index: -2;
}

body::after {
  content: '';
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(rgba(0, 229, 255, 0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0, 229, 255, 0.03) 1px, transparent 1px);
  background-size: 50px 50px;
  z-index: -1;
  animation: gridmove 20s linear infinite;
}

@keyframes gridmove {
  from { background-position: 0 0; }
  to { background-position: 50px 50px; }
}

/* ─── LOGIN ─────────────────────────────────────────────────── */
.login-wrap {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 20px;
}

.login-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 20px;
  padding: 48px 40px;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.5), inset 0 1px 0 rgba(255, 255, 255, 0.05);
  position: relative;
}

.login-card::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 20px;
  padding: 1px;
  background: linear-gradient(135deg, var(--cyan), transparent 40%, transparent 60%, var(--purple));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
}

.login-logo {
  text-align: center;
  font-size: 42px;
  margin-bottom: 8px;
  filter: drop-shadow(0 0 12px var(--cyan));
}

.login-card h1 {
  text-align: center;
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 4px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.login-card .subtitle {
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
  margin-bottom: 32px;
  letter-spacing: 0.5px;
}

.field { margin-bottom: 20px; }

.field label {
  display: block;
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

.field input {
  width: 100%;
  padding: 13px 16px;
  background: rgba(0, 0, 0, 0.3);
  border: 1px solid var(--glass-border);
  border-radius: 10px;
  color: var(--text);
  font-size: 15px;
  transition: all 0.25s;
}

.field input:focus {
  outline: none;
  border-color: var(--cyan);
  box-shadow: 0 0 0 3px rgba(0, 229, 255, 0.15);
}

.btn-login {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  border: none;
  border-radius: 10px;
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
  margin-top: 8px;
  letter-spacing: 0.5px;
}

.btn-login:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 229, 255, 0.35);
}

.error-msg {
  background: rgba(255, 82, 82, 0.12);
  border: 1px solid rgba(255, 82, 82, 0.3);
  color: #ff8a80;
  padding: 12px;
  border-radius: 8px;
  font-size: 13px;
  text-align: center;
  margin-bottom: 20px;
}

/* ─── HEADER ────────────────────────────────────────────────── */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 18px 32px;
  background: var(--glass);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--glass-border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.topbar .brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 20px;
  font-weight: 700;
}

.topbar .brand .logo {
  font-size: 26px;
  filter: drop-shadow(0 0 8px var(--cyan));
}

.topbar .brand span {
  background: linear-gradient(135deg, var(--cyan), var(--purple));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.topbar .user-area {
  display: flex;
  align-items: center;
  gap: 16px;
  font-size: 13px;
  color: var(--text-dim);
}

.btn-logout {
  padding: 8px 16px;
  background: rgba(255, 82, 82, 0.1);
  border: 1px solid rgba(255, 82, 82, 0.3);
  border-radius: 8px;
  color: #ff8a80;
  text-decoration: none;
  font-size: 13px;
  transition: all 0.2s;
}

.btn-logout:hover {
  background: rgba(255, 82, 82, 0.2);
}

/* ─── CONTENIDO ─────────────────────────────────────────────── */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 40px 32px;
}

.page-title {
  font-size: 28px;
  font-weight: 700;
  margin-bottom: 6px;
}

.page-subtitle {
  color: var(--text-dim);
  font-size: 14px;
  margin-bottom: 36px;
}

.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 24px;
}

.breadcrumb a {
  color: var(--cyan);
  text-decoration: none;
}

.breadcrumb a:hover { text-decoration: underline; }

/* ─── GRID DE CATEGORÍAS ────────────────────────────────────── */
.cat-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.cat-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 18px;
  padding: 40px;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  color: var(--text);
  position: relative;
  overflow: hidden;
}

.cat-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--cyan), var(--purple));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.3s;
}

.cat-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0, 229, 255, 0.3);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.4);
}

.cat-card:hover::before { transform: scaleX(1); }

.cat-card .cat-icon {
  font-size: 48px;
  margin-bottom: 18px;
  filter: drop-shadow(0 0 16px var(--cyan));
}

.cat-card h2 { font-size: 22px; margin-bottom: 6px; }
.cat-card p { color: var(--text-dim); font-size: 14px; }

.cat-card .count {
  display: inline-block;
  margin-top: 16px;
  padding: 5px 14px;
  background: rgba(0, 229, 255, 0.1);
  border: 1px solid rgba(0, 229, 255, 0.25);
  border-radius: 20px;
  font-size: 12px;
  color: var(--cyan);
}

/* ─── GRID DE PROYECTOS ─────────────────────────────────────── */
.proj-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 22px;
}

.proj-card {
  background: var(--glass);
  backdrop-filter: blur(20px);
  border: 1px solid var(--glass-border);
  border-radius: 16px;
  padding: 28px;
  cursor: pointer;
  transition: all 0.3s;
  text-decoration: none;
  color: var(--text);
  position: relative;
  overflow: hidden;
}

.proj-card::after {
  content: '';
  position: absolute;
  top: -50%; right: -50%;
  width: 120px; height: 120px;
  background: radial-gradient(circle, var(--accent, var(--cyan)), transparent 70%);
  opacity: 0.12;
  transition: opacity 0.3s;
}

.proj-card:hover {
  transform: translateY(-5px);
  border-color: var(--accent, var(--cyan));
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.45);
}

.proj-card:hover::after { opacity: 0.25; }

.proj-icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: block;
}

.proj-card h3 {
  font-size: 17px;
  margin-bottom: 8px;
  line-height: 1.3;
}

.proj-card p {
  color: var(--text-dim);
  font-size: 13px;
  line-height: 1.5;
}

.proj-card .arrow {
  position: absolute;
  bottom: 24px;
  right: 24px;
  font-size: 18px;
  color: var(--accent, var(--cyan));
  opacity: 0;
  transform: translateX(-8px);
  transition: all 0.3s;
}

.proj-card:hover .arrow {
  opacity: 1;
  transform: translateX(0);
}

.empty-state {
  text-align: center;
  padding: 80px 20px;
  color: var(--text-dim);
}

.empty-state .icon { font-size: 56px; opacity: 0.3; margin-bottom: 16px; }

@media (max-width: 768px) {
  .cat-grid { grid-template-columns: 1fr; }
  .proj-grid { grid-template-columns: 1fr; }
  .container { padding: 24px 18px; }
}