/* =====================================================
   SAAS PROFESORES — Branding independiente
   Paleta: verde educativo + acento dorado (premium feel)
   ===================================================== */
:root {
  --prof-primary: #0d6b50;
  --prof-primary-dark: #08463a;
  --prof-primary-light: #14a37f;
  --prof-accent: #c89b2c;
  --prof-accent-light: #f0c46a;
  --prof-bg: #f5f8f7;
  --prof-card: #ffffff;
  --prof-text: #102a23;
  --prof-text-muted: #54676d;
  --prof-border: #d8e4e0;
  --prof-success: #16a34a;
  --prof-warn: #d97706;
  --prof-danger: #dc2626;
  --prof-shadow: 0 4px 16px rgba(8, 70, 58, 0.08);
  --prof-shadow-lg: 0 10px 32px rgba(8, 70, 58, 0.14);
}

body.profesor-page {
  background: var(--prof-bg);
  color: var(--prof-text);
  font-family: 'Inter', system-ui, sans-serif;
}

/* Header */
.prof-header {
  background: linear-gradient(135deg, #ffffff 0%, #f0f7f4 100%);
  border-bottom: 1px solid var(--prof-border);
  box-shadow: var(--prof-shadow);
  position: sticky;
  top: 0;
  z-index: 50;
}
.prof-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  gap: 24px;
  flex-wrap: wrap;
}
.prof-brand {
  display: flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--prof-text);
}
.prof-brand-mark {
  font-size: 2rem;
  width: 48px; height: 48px;
  display: flex; align-items: center; justify-content: center;
  background: linear-gradient(135deg, var(--prof-primary) 0%, var(--prof-primary-light) 100%);
  border-radius: 12px;
  box-shadow: var(--prof-shadow);
}
.prof-brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.prof-brand-text strong { font-size: 1.15rem; color: var(--prof-primary-dark); }
.prof-brand-text small { color: var(--prof-text-muted); font-size: .8rem; display: flex; gap: 6px; align-items: center; }
.free-badge {
  background: linear-gradient(135deg, var(--prof-accent) 0%, var(--prof-accent-light) 100%);
  color: #2d1f00;
  font-weight: 800;
  font-size: .65rem;
  letter-spacing: 1px;
  padding: 3px 8px;
  border-radius: 999px;
  box-shadow: 0 1px 4px rgba(200, 155, 44, .35);
}

.prof-nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.prof-nav a {
  color: var(--prof-text);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 8px;
  font-size: .95rem;
  font-weight: 500;
  transition: all .15s ease;
}
.prof-nav a:hover { background: rgba(13, 107, 80, .08); color: var(--prof-primary-dark); }
.prof-nav a.active { background: var(--prof-primary); color: #fff; }
.prof-nav-user { display: flex; align-items: center; gap: 8px; }
.prof-nav-avatar {
  width: 32px; height: 32px;
  background: linear-gradient(135deg, var(--prof-primary) 0%, var(--prof-primary-light) 100%);
  color: #fff; font-weight: 700; font-size: .9rem;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
}

/* Main */
.prof-main { min-height: calc(100vh - 200px); padding: 32px 0 64px; }
.container { max-width: 1240px; margin: 0 auto; padding: 0 24px; }

/* Hero del dashboard */
.prof-hero {
  background: linear-gradient(135deg, var(--prof-primary) 0%, var(--prof-primary-dark) 100%);
  color: #fff;
  border-radius: 20px;
  padding: 40px 36px;
  margin-bottom: 32px;
  position: relative;
  overflow: hidden;
  box-shadow: var(--prof-shadow-lg);
}
.prof-hero::before {
  content: '';
  position: absolute;
  top: -50%; right: -10%;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(240, 196, 106, .18) 0%, transparent 60%);
  border-radius: 50%;
}
.prof-hero-content { position: relative; z-index: 1; }
.prof-hero h1 { font-size: 2rem; margin: 8px 0 6px; }
.prof-hero p { color: rgba(255,255,255,.92); font-size: 1.05rem; max-width: 720px; }
.prof-hero-meta {
  display: flex; gap: 20px; margin-top: 18px; flex-wrap: wrap;
}
.prof-hero-meta-item {
  background: rgba(255,255,255,.13);
  padding: 10px 16px;
  border-radius: 10px;
  backdrop-filter: blur(8px);
  border: 1px solid rgba(255,255,255,.18);
  font-size: .9rem;
}
.prof-hero-meta-item strong { display: block; font-size: 1.4rem; line-height: 1.1; }

/* KPI cards */
.prof-kpis { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 16px; margin-bottom: 32px; }
.prof-kpi {
  background: var(--prof-card);
  border: 1px solid var(--prof-border);
  border-radius: 14px;
  padding: 20px 22px;
  box-shadow: var(--prof-shadow);
  transition: transform .15s ease, box-shadow .15s ease;
}
.prof-kpi:hover { transform: translateY(-2px); box-shadow: var(--prof-shadow-lg); }
.prof-kpi-label { color: var(--prof-text-muted); font-size: .8rem; text-transform: uppercase; letter-spacing: .5px; margin-bottom: 6px; }
.prof-kpi-value { font-size: 2rem; font-weight: 800; color: var(--prof-primary-dark); line-height: 1; }
.prof-kpi-sub { color: var(--prof-text-muted); font-size: .85rem; margin-top: 4px; }

/* Cards / secciones */
.prof-card {
  background: var(--prof-card);
  border: 1px solid var(--prof-border);
  border-radius: 14px;
  padding: 28px;
  box-shadow: var(--prof-shadow);
  margin-bottom: 24px;
}
.prof-card h2 { color: var(--prof-primary-dark); font-size: 1.4rem; margin: 0 0 16px; }
.prof-card h3 { color: var(--prof-primary-dark); font-size: 1.1rem; margin: 0 0 12px; }
.prof-card-header {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 18px; flex-wrap: wrap; gap: 10px;
}

/* Code badge (código_profesor y codigo_grupo) */
.prof-code {
  display: inline-block;
  font-family: 'JetBrains Mono', monospace;
  background: linear-gradient(135deg, #0a3a30 0%, var(--prof-primary) 100%);
  color: #f8f5e9;
  padding: 8px 14px;
  border-radius: 8px;
  font-weight: 600;
  letter-spacing: 1px;
  font-size: .95rem;
  box-shadow: inset 0 1px 0 rgba(255,255,255,.12), 0 2px 6px rgba(0,0,0,.15);
  user-select: all;
  cursor: copy;
}
.prof-code-large { font-size: 1.2rem; padding: 12px 20px; }

/* Table */
.prof-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--prof-card);
  border-radius: 12px;
  overflow: hidden;
}
.prof-table th { background: var(--prof-primary); color: #fff; padding: 12px 14px; text-align: left; font-size: .85rem; }
.prof-table td { padding: 12px 14px; border-bottom: 1px solid var(--prof-border); font-size: .92rem; }
.prof-table tr:hover td { background: #f0f7f4; }
.prof-table tr:last-child td { border-bottom: 0; }

/* Form (reuso estilos de styles.css) */
.form-group { margin-bottom: 18px; }
.form-group label { display: block; margin-bottom: 6px; font-weight: 600; color: var(--prof-primary-dark); font-size: .92rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%;
  padding: 11px 14px;
  border: 1px solid var(--prof-border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus {
  outline: none;
  border-color: var(--prof-primary);
  box-shadow: 0 0 0 3px rgba(13, 107, 80, .15);
}
.form-group .help { color: var(--prof-text-muted); font-size: .82rem; margin-top: 4px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
@media (max-width: 700px) { .form-row { grid-template-columns: 1fr; } }

/* Alertas */
.prof-alert {
  padding: 14px 18px;
  border-radius: 10px;
  margin-bottom: 18px;
  border-left: 4px solid;
  font-size: .92rem;
}
.prof-alert-info { background: #e3f2fd; border-color: #2196f3; color: #0d3a5e; }
.prof-alert-success { background: #e6f7ed; border-color: var(--prof-success); color: #14532d; }
.prof-alert-warn { background: #fff3e0; border-color: var(--prof-warn); color: #6b3e00; }
.prof-alert-danger { background: #fee2e2; border-color: var(--prof-danger); color: #7f1d1d; }

/* Status pill */
.pill {
  display: inline-block;
  padding: 3px 10px;
  border-radius: 999px;
  font-size: .75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .5px;
}
.pill-pendiente { background: #fef3c7; color: #92400e; }
.pill-activo { background: #d1fae5; color: #065f46; }
.pill-inactivo { background: #f3f4f6; color: #4b5563; }
.pill-rechazado { background: #fee2e2; color: #7f1d1d; }

/* Buttons (compatibilidad con styles.css) */
.btn { display: inline-block; padding: 10px 18px; border-radius: 8px; text-decoration: none; font-weight: 600; cursor: pointer; border: 1px solid transparent; font-size: .95rem; transition: all .15s ease; }
.btn-sm { padding: 6px 12px; font-size: .85rem; }
.btn-lg { padding: 14px 24px; font-size: 1.05rem; }
.btn-primary { background: var(--prof-primary); color: #fff; }
.btn-primary:hover { background: var(--prof-primary-dark); }
.btn-secondary { background: var(--prof-accent); color: #2d1f00; }
.btn-secondary:hover { background: var(--prof-accent-light); }
.btn-outline { background: transparent; color: var(--prof-primary); border-color: var(--prof-primary); }
.btn-outline:hover { background: var(--prof-primary); color: #fff; }
.btn-ghost { background: transparent; color: var(--prof-text); }
.btn-danger { background: var(--prof-danger); color: #fff; }
.btn-danger:hover { background: #b91c1c; }

/* Footer */
.prof-footer {
  background: linear-gradient(135deg, var(--prof-primary-dark) 0%, #04211a 100%);
  color: rgba(255,255,255,.85);
  padding: 36px 0 28px;
  margin-top: 64px;
}
.prof-footer-grid { display: grid; grid-template-columns: 1.2fr 1fr 1fr 1fr; gap: 32px; }
.prof-footer strong { color: #fff; display: block; margin-bottom: 8px; }
.prof-footer p { margin: 0; }
.prof-footer .muted { color: rgba(255,255,255,.65) !important; }
.prof-link { color: var(--prof-accent-light); }
.prof-link:hover { color: #fff; }
@media (max-width: 700px) { .prof-footer-grid { grid-template-columns: 1fr; gap: 18px; } }

/* Landing registro — hero split */
.prof-landing {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 40px;
  align-items: center;
  padding: 48px 0;
}
.prof-landing h1 { font-size: 2.6rem; color: var(--prof-primary-dark); line-height: 1.1; margin: 12px 0 16px; }
.prof-landing-cta { display: flex; gap: 12px; margin-top: 24px; flex-wrap: wrap; }
.prof-landing-features { list-style: none; padding: 0; margin: 20px 0 0; }
.prof-landing-features li { padding: 8px 0; display: flex; align-items: flex-start; gap: 10px; color: var(--prof-text); }
.prof-landing-features li::before { content: '✓'; color: var(--prof-success); font-weight: 800; font-size: 1.1rem; }
.prof-landing-image {
  background: linear-gradient(135deg, var(--prof-primary) 0%, var(--prof-primary-dark) 100%);
  border-radius: 24px;
  padding: 32px;
  color: #fff;
  position: relative;
  overflow: hidden;
  box-shadow: var(--prof-shadow-lg);
}
.prof-landing-image::before {
  content: '';
  position: absolute; top: -40%; right: -20%;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(240,196,106,.18) 0%, transparent 65%);
  border-radius: 50%;
}
.prof-landing-image-content { position: relative; z-index: 1; }
.prof-landing-image h3 { color: #fff; font-size: 1.4rem; margin-bottom: 12px; }
@media (max-width: 900px) { .prof-landing { grid-template-columns: 1fr; } }

/* Politicas box */
.prof-politicas {
  background: #f8fafc;
  border: 1px solid var(--prof-border);
  border-radius: 12px;
  padding: 18px 20px;
  max-height: 280px;
  overflow-y: auto;
  font-size: .88rem;
  line-height: 1.55;
  color: var(--prof-text);
}
.prof-politicas::-webkit-scrollbar { width: 8px; }
.prof-politicas::-webkit-scrollbar-thumb { background: var(--prof-border); border-radius: 4px; }

/* Steps */
.prof-steps { display: flex; gap: 12px; margin: 20px 0; flex-wrap: wrap; }
.prof-step {
  flex: 1;
  min-width: 200px;
  background: var(--prof-card);
  border: 1px solid var(--prof-border);
  border-radius: 12px;
  padding: 16px 18px;
}
.prof-step-num {
  width: 32px; height: 32px;
  background: var(--prof-primary); color: #fff;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; margin-bottom: 10px;
}
.prof-step h4 { margin: 0 0 6px; color: var(--prof-primary-dark); }
.prof-step p { margin: 0; color: var(--prof-text-muted); font-size: .9rem; }

/* Grade form */
.prof-grade-input {
  display: flex; gap: 10px; align-items: center;
}
.prof-grade-input input {
  width: 80px !important;
  text-align: center;
  font-weight: 600;
  font-size: 1.05rem;
}
.prof-grade-summary {
  background: linear-gradient(135deg, #0a3a30 0%, var(--prof-primary) 100%);
  color: #fff;
  padding: 20px 24px;
  border-radius: 14px;
  display: flex; justify-content: space-between; align-items: center;
  margin-top: 16px;
}
.prof-grade-summary-label { font-size: .85rem; opacity: .85; }
.prof-grade-summary-value { font-size: 2.2rem; font-weight: 800; }

/* Empty state */
.prof-empty {
  text-align: center;
  padding: 40px 20px;
  color: var(--prof-text-muted);
}
.prof-empty-icon { font-size: 3rem; opacity: .35; margin-bottom: 10px; }