@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Paleta cromática ejecutiva */
  --bg-main: #f8fafc;
  --bg-surface: #ffffff;
  --bg-surface-elevated: #ffffff;
  --bg-subtle: #f1f5f9;
  
  --border-light: #e2e8f0;
  --border-subtle: #cbd5e1;
  --border-focus: #3b82f6;

  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --text-inverse: #ffffff;

  /* Colores de marca y estado */
  --primary: #2563eb;
  --primary-hover: #1d4ed8;
  --primary-subtle: #eff6ff;

  --success: #10b981;
  --success-subtle: #ecfdf5;
  --success-text: #047857;

  --warning: #f59e0b;
  --warning-subtle: #fffbeb;
  --warning-text: #b45309;

  --danger: #ef4444;
  --danger-subtle: #fef2f2;
  --danger-text: #b91c1c;

  --indigo: #6366f1;
  --indigo-subtle: #eef2ff;
  
  /* Plataformas */
  --color-meta: #8b5cf6;
  --color-meta-bg: #f5f3ff;
  --color-google: #3b82f6;
  --color-google-bg: #eff6ff;
  --color-metricool: #10b981;
  --color-metricool-bg: #ecfdf5;
  --color-vturb: #f97316;
  --color-vturb-bg: #fff7ed;

  /* Sombras y elevaciones sutiles */
  --shadow-xs: 0 1px 2px 0 rgba(15, 23, 42, 0.04);
  --shadow-sm: 0 1px 3px 0 rgba(15, 23, 42, 0.08), 0 1px 2px -1px rgba(15, 23, 42, 0.08);
  --shadow-md: 0 4px 6px -1px rgba(15, 23, 42, 0.07), 0 2px 4px -2px rgba(15, 23, 42, 0.05);
  --shadow-lg: 0 10px 15px -3px rgba(15, 23, 42, 0.08), 0 4px 6px -4px rgba(15, 23, 42, 0.03);

  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 20px;
}

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

body {
  font-family: 'Inter', system-ui, -apple-system, sans-serif;
  background-color: var(--bg-main);
  color: var(--text-primary);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

h1, h2, h3, h4, h5, h6 {
  font-family: 'Plus Jakarta Sans', sans-serif;
  color: var(--text-primary);
  font-weight: 700;
  letter-spacing: -0.02em;
}

/* NAVBAR PRINCIPAL */
.app-navbar {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-light);
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(8px);
}

.brand-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--text-primary);
  text-decoration: none;
}

.brand-logo-icon {
  width: 32px;
  height: 32px;
  background: linear-gradient(135deg, #2563eb, #7c3aed);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 1rem;
}

.user-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  background-color: var(--bg-subtle);
  padding: 4px 12px 4px 4px;
  border-radius: 50px;
  border: 1px solid var(--border-light);
}

.user-avatar {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  background-color: var(--primary);
  color: white;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

/* NAVEGACIÓN SECUNDARIA DEL PROYECTO */
.project-subnav {
  background-color: var(--bg-surface);
  border-bottom: 1px solid var(--border-light);
  margin-bottom: 24px;
}

.nav-tabs-custom {
  display: flex;
  gap: 8px;
  border-bottom: none;
}

.nav-tabs-custom .nav-link {
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 12px 18px;
  border: none;
  border-bottom: 2px solid transparent;
  border-radius: 0;
  transition: all 0.2s ease;
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-tabs-custom .nav-link:hover {
  color: var(--text-primary);
  border-bottom-color: var(--border-subtle);
}

.nav-tabs-custom .nav-link.active {
  color: var(--primary);
  border-bottom: 2px solid var(--primary);
  background: transparent;
}

/* BOTONES MODERNOS */
.btn-primary-custom {
  background-color: var(--primary);
  color: white;
  border: none;
  border-radius: var(--radius-md);
  font-weight: 600;
  padding: 8px 18px;
  font-size: 0.9rem;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  cursor: pointer;
}

.btn-primary-custom:hover {
  background-color: var(--primary-hover);
  color: white;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.btn-light-custom {
  background-color: var(--bg-surface);
  color: var(--text-secondary);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-md);
  font-weight: 600;
  padding: 8px 16px;
  font-size: 0.9rem;
  transition: all 0.15s ease;
  display: inline-flex;
  align-items: center;
  gap: 6px;
  text-decoration: none;
  cursor: pointer;
}

.btn-light-custom:hover {
  background-color: var(--bg-subtle);
  color: var(--text-primary);
  border-color: var(--border-subtle);
}

/* CARDS GENERALES */
.card-modern {
  background-color: var(--bg-surface);
  border: 1px solid var(--border-light);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  transition: box-shadow 0.2s ease, transform 0.2s ease;
}

.card-modern:hover {
  box-shadow: var(--shadow-md);
}

/* CHIPS & BADGES */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 0.75rem;
  font-weight: 600;
  padding: 3px 8px;
  border-radius: 6px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

.chip-meta { background-color: var(--color-meta-bg); color: var(--color-meta); }
.chip-google { background-color: var(--color-google-bg); color: var(--color-google); }
.chip-metricool { background-color: var(--color-metricool-bg); color: var(--color-metricool); }
.chip-vturb { background-color: var(--color-vturb-bg); color: var(--color-vturb); }

.chip-urgent { background-color: #fee2e2; color: #991b1b; }
.chip-high { background-color: #fef3c7; color: #92400e; }
.chip-medium { background-color: #e0f2fe; color: #075985; }
.chip-low { background-color: #f1f5f9; color: #475569; }

/* ANIMACIONES */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.fade-in-entry {
  animation: fadeIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

/* SCROLLBAR PERSONALIZADO */
::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}
::-webkit-scrollbar-track {
  background: var(--bg-subtle);
}
::-webkit-scrollbar-thumb {
  background: var(--border-subtle);
  border-radius: 4px;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}