/* ============================================================
   KRREON COACHING — Styles
   Paleta oficial · Identidad gamer competitiva
============================================================ */

:root {
  --color-bg:           #05050A;
  --color-bg-elev:      #0a0a14;
  --color-card:         #111827;
  --color-card-hover:   #161f31;
  --color-purple-dark:  #3B0A70;
  --color-purple-neon:  #8B5CF6;
  --color-blue:         #00A3FF;
  --color-blue-dark:    #0284C7;
  --color-white:        #FFFFFF;
  --color-gray:         #D1D5DB;
  --color-gray-muted:   #6b7280;
  --color-success:      #22C55E;
  --color-warning:      #FACC15;
  --color-danger:       #EF4444;
  --color-info:         #38BDF8;
  --color-border:       rgba(139, 92, 246, 0.25);
  --color-border-hover: rgba(0, 163, 255, 0.55);

  --gradient-primary:   linear-gradient(135deg, #3B0A70 0%, #00A3FF 100%);
  --gradient-glow:      radial-gradient(circle at 50% 0%, rgba(139,92,246,0.18), transparent 60%);

  --radius-sm: 8px;
  --radius:    14px;
  --radius-lg: 22px;

  --shadow-glow-purple: 0 0 32px rgba(139, 92, 246, 0.22);
  --shadow-glow-blue:   0 0 32px rgba(0, 163, 255, 0.22);
  --shadow-card:        0 8px 32px rgba(0, 0, 0, 0.6);

  --font-display: 'Orbitron', sans-serif;
  --font-accent:  'Rajdhani', sans-serif;
  --font-body:    'Inter', sans-serif;
}

/* ============================================================
   RESET
============================================================ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-white);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
}
img { max-width: 100%; display: block; }
a { color: var(--color-blue); text-decoration: none; transition: color .2s; }
a:hover { color: var(--color-purple-neon); }
ul { list-style: none; padding: 0; margin: 0; }
button { font-family: inherit; cursor: pointer; }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: 1px;
  line-height: 1.2;
  margin: 0 0 .5em;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================================
   BACKGROUND EFFECTS
============================================================ */
.bg-effects {
  position: fixed; inset: 0; z-index: -1;
  pointer-events: none; overflow: hidden;
}
.bg-grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(139, 92, 246, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(139, 92, 246, 0.04) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 80%);
}
.bg-glow { position: absolute; border-radius: 50%; filter: blur(120px); opacity: 0.4; }
.bg-glow-1 { top: -200px; left: -100px; width: 600px; height: 600px; background: var(--color-purple-dark); }
.bg-glow-2 { bottom: -200px; right: -100px; width: 500px; height: 500px; background: var(--color-blue); opacity: 0.18; }

/* ============================================================
   NAVBAR
============================================================ */
.navbar {
  position: sticky; top: 0; z-index: 100;
  background: rgba(5, 5, 10, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 24px;
}
.nav-logo {
  display: flex; align-items: center; gap: 10px;
  color: var(--color-white);
}
.nav-logo:hover { color: var(--color-white); }
.logo-mark {
  width: 38px; height: 38px;
  background: var(--gradient-primary);
  border-radius: 10px;
  display: grid; place-items: center;
  font-family: var(--font-display);
  font-weight: 900;
  font-size: 20px;
  color: #fff;
  box-shadow: var(--shadow-glow-purple);
}
.logo-text {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 16px;
  letter-spacing: 2px;
}
.logo-text span {
  color: var(--color-blue);
  margin-left: 4px;
}

.nav-menu {
  display: flex; align-items: center; gap: 24px;
}
.nav-menu a {
  color: var(--color-gray);
  font-weight: 500;
  font-size: 14px;
  letter-spacing: .5px;
  padding: 8px 4px;
  position: relative;
  transition: color .2s;
}
.nav-menu a:hover, .nav-menu a.active {
  color: var(--color-white);
}
.nav-menu a.active::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-primary);
  border-radius: 2px;
}
.nav-link-muted { color: var(--color-gray-muted) !important; font-size: 13px !important; }

.btn-nav-primary {
  background: var(--gradient-primary);
  color: var(--color-white) !important;
  padding: 10px 22px !important;
  border-radius: var(--radius);
  font-weight: 700 !important;
  box-shadow: var(--shadow-glow-blue);
  transition: transform .2s, box-shadow .2s;
}
.btn-nav-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 163, 255, 0.4);
}
.btn-nav-primary::after { display: none !important; }

.btn-nav-outline {
  border: 1px solid var(--color-purple-neon);
  padding: 9px 20px !important;
  border-radius: var(--radius);
  color: var(--color-white) !important;
  transition: all .2s;
}
.btn-nav-outline:hover {
  background: rgba(139, 92, 246, 0.15);
  box-shadow: var(--shadow-glow-purple);
}
.btn-nav-outline::after { display: none !important; }

.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: transparent; border: none;
  padding: 8px;
}
.nav-toggle span {
  width: 24px; height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: transform .3s;
}

@media (max-width: 900px) {
  .nav-toggle { display: flex; }
  .nav-menu {
    position: fixed; top: 70px; left: 0; right: 0;
    flex-direction: column; gap: 0;
    background: rgba(5, 5, 10, 0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--color-border);
    padding: 20px;
    transform: translateY(-200%);
    transition: transform .3s;
  }
  .nav-menu.open { transform: translateY(0); }
  .nav-menu a { padding: 12px 0; width: 100%; text-align: center; }
  .btn-nav-primary, .btn-nav-outline { margin: 6px 0; text-align: center; }
}

/* ============================================================
   FLASH
============================================================ */
.flash {
  padding: 12px 24px;
  text-align: center;
  font-weight: 500;
  border-bottom: 1px solid;
}
.flash-success { background: rgba(34, 197, 94, 0.15); color: var(--color-success); border-color: var(--color-success); }
.flash-warning { background: rgba(250, 204, 21, 0.15); color: var(--color-warning); border-color: var(--color-warning); }
.flash-danger  { background: rgba(239, 68, 68, 0.15); color: var(--color-danger);  border-color: var(--color-danger); }
.flash-info    { background: rgba(0, 163, 255, 0.15); color: var(--color-blue);    border-color: var(--color-blue); }

/* ============================================================
   BUTTONS
============================================================ */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  padding: 13px 26px;
  border-radius: var(--radius);
  font-weight: 700;
  font-family: var(--font-accent);
  font-size: 15px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: all .25s ease;
  text-decoration: none;
}
.btn-primary {
  background: var(--gradient-primary);
  color: var(--color-white);
  box-shadow: var(--shadow-glow-blue);
}
.btn-primary:hover {
  color: var(--color-white);
  transform: translateY(-2px);
  box-shadow: 0 0 40px rgba(0, 163, 255, 0.45);
}
.btn-outline {
  background: transparent;
  color: var(--color-white);
  border: 1px solid var(--color-purple-neon);
}
.btn-outline:hover {
  background: rgba(139, 92, 246, 0.12);
  box-shadow: var(--shadow-glow-purple);
  color: var(--color-white);
}
.btn-ghost {
  background: rgba(255,255,255,.04);
  color: var(--color-gray);
  border: 1px solid var(--color-border);
}
.btn-ghost:hover { color: var(--color-white); border-color: var(--color-border-hover); }

.btn-sm  { padding: 8px 16px; font-size: 12px; }
.btn-lg  { padding: 16px 36px; font-size: 16px; }
.btn-block { display: flex; width: 100%; }

/* ============================================================
   HERO
============================================================ */
.hero {
  position: relative;
  padding: 80px 0 100px;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute; inset: 0;
  background: var(--gradient-glow);
  pointer-events: none;
}
.hero-inner {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 8px 16px;
  background: rgba(139, 92, 246, 0.12);
  border: 1px solid var(--color-purple-neon);
  border-radius: 999px;
  font-size: 12px;
  font-weight: 600;
  font-family: var(--font-accent);
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--color-purple-neon);
  margin-bottom: 24px;
}
.hero-badge::before {
  content: ''; width: 8px; height: 8px;
  background: var(--color-purple-neon);
  border-radius: 50%;
  box-shadow: 0 0 12px var(--color-purple-neon);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: .5; transform: scale(.8); }
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 4rem);
  margin-bottom: 24px;
  line-height: 1.05;
}
.hero-title .gradient {
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}
.hero-subtitle {
  font-size: 1.15rem;
  color: var(--color-gray);
  margin-bottom: 36px;
  max-width: 600px;
}
.hero-buttons {
  display: flex; flex-wrap: wrap; gap: 16px;
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
  margin-top: 60px;
}
.hero-feature {
  background: rgba(17, 24, 39, 0.5);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px;
  backdrop-filter: blur(8px);
  transition: all .25s;
}
.hero-feature:hover {
  border-color: var(--color-blue);
  transform: translateY(-3px);
  box-shadow: var(--shadow-glow-blue);
}
.hero-feature-icon {
  font-size: 32px; margin-bottom: 12px;
}
.hero-feature h4 {
  font-size: 16px; margin-bottom: 6px;
  font-family: var(--font-accent);
}
.hero-feature p { color: var(--color-gray); font-size: 14px; margin: 0; }

/* ============================================================
   SECTIONS
============================================================ */
.section {
  padding: 80px 0;
  position: relative;
}
.section-tag {
  display: inline-block;
  font-family: var(--font-accent);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--color-blue);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  margin-bottom: 16px;
}
.section-subtitle {
  color: var(--color-gray);
  max-width: 700px;
  font-size: 1.05rem;
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-header.left { text-align: left; }
.section-header .section-subtitle { margin: 0 auto; }
.section-header.left .section-subtitle { margin: 0; }

.quote-block {
  text-align: center;
  padding: 40px 24px;
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
  margin: 60px 0;
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 1.8rem);
  font-style: italic;
  color: var(--color-white);
  letter-spacing: 1px;
}

/* ============================================================
   CARDS
============================================================ */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(290px, 1fr));
  gap: 24px;
}
.card-gaming {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px;
  transition: all .3s ease;
  position: relative;
  overflow: hidden;
}
.card-gaming::before {
  content: '';
  position: absolute; top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient-primary);
  opacity: 0;
  transition: opacity .3s;
}
.card-gaming:hover {
  border-color: var(--color-border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow-blue);
  background: var(--color-card-hover);
}
.card-gaming:hover::before { opacity: 1; }

.card-icon {
  font-size: 36px;
  margin-bottom: 16px;
  display: inline-block;
}
.card-title {
  font-family: var(--font-display);
  font-size: 18px;
  margin-bottom: 16px;
}
.card-list {
  margin-bottom: 16px;
}
.card-list li {
  position: relative;
  padding-left: 22px;
  color: var(--color-gray);
  font-size: 14px;
  margin-bottom: 6px;
  line-height: 1.5;
}
.card-list li::before {
  content: '▸';
  position: absolute; left: 0;
  color: var(--color-blue);
  font-weight: bold;
}
.card-desc {
  color: var(--color-gray);
  font-size: 14px;
  border-top: 1px solid var(--color-border);
  padding-top: 16px;
  font-style: italic;
}

/* ============================================================
   PRICING
============================================================ */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 32px;
  max-width: 900px;
  margin: 0 auto;
}
.price-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px 32px;
  text-align: center;
  position: relative;
  transition: all .3s ease;
}
.price-card.featured {
  border-color: var(--color-blue);
  box-shadow: var(--shadow-glow-blue);
  transform: scale(1.02);
}
.price-card.featured::before {
  content: 'MÁS POPULAR';
  position: absolute;
  top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--gradient-primary);
  padding: 6px 18px;
  font-family: var(--font-accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 2px;
  border-radius: 999px;
}
.price-card:hover {
  transform: translateY(-6px);
  border-color: var(--color-blue);
  box-shadow: var(--shadow-glow-blue);
}
.price-card.featured:hover { transform: scale(1.02) translateY(-6px); }
.price-name {
  font-family: var(--font-display);
  font-size: 18px;
  letter-spacing: 2px;
  color: var(--color-purple-neon);
  margin-bottom: 12px;
}
.price-amount {
  font-family: var(--font-display);
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1;
  background: var(--gradient-primary);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.price-currency {
  font-size: 1.5rem;
  vertical-align: top;
  color: var(--color-gray);
  -webkit-text-fill-color: var(--color-gray);
}
.price-period {
  color: var(--color-gray);
  font-size: 14px;
  margin-top: 8px;
}
.price-list {
  margin: 32px 0;
  text-align: left;
}
.price-list li {
  padding: 10px 0;
  color: var(--color-gray);
  font-size: 14px;
  border-bottom: 1px solid var(--color-border);
}
.price-list li::before {
  content: '✓';
  color: var(--color-success);
  margin-right: 10px;
  font-weight: 700;
}

/* ============================================================
   FORMS
============================================================ */
.form-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  max-width: 600px;
  margin: 0 auto;
}
.form-group { margin-bottom: 18px; }
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
@media (max-width: 600px) {
  .form-row { grid-template-columns: 1fr; }
}
.form-label {
  display: block;
  margin-bottom: 6px;
  font-family: var(--font-accent);
  font-size: 13px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-gray);
}
.form-input, .form-select, .form-textarea {
  width: 100%;
  padding: 12px 16px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  color: var(--color-white);
  font-family: var(--font-body);
  font-size: 15px;
  transition: border-color .2s, box-shadow .2s;
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-blue);
  box-shadow: 0 0 0 3px rgba(0, 163, 255, 0.15);
}
.form-textarea { min-height: 100px; resize: vertical; }
.form-help { color: var(--color-gray-muted); font-size: 12px; margin-top: 4px; }
.form-error { color: var(--color-danger); font-size: 13px; margin-top: 4px; }

/* Radio cards for payment selection */
.radio-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
  gap: 12px;
}
.radio-card {
  position: relative;
  padding: 16px;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  cursor: pointer;
  text-align: center;
  transition: all .2s;
}
.radio-card input { position: absolute; opacity: 0; }
.radio-card:hover { border-color: var(--color-purple-neon); }
.radio-card.selected,
.radio-card input:checked ~ * { color: var(--color-white); }
.radio-card:has(input:checked) {
  border-color: var(--color-blue);
  background: rgba(0, 163, 255, 0.08);
  box-shadow: var(--shadow-glow-blue);
}

/* Calendar / Time slots */
.calendar-wrapper { background: var(--color-bg-elev); border-radius: var(--radius); padding: 16px; border: 1px solid var(--color-border); }
.calendar-grid {
  display: grid; grid-template-columns: repeat(7, 1fr); gap: 4px;
}
.calendar-day {
  aspect-ratio: 1;
  display: grid; place-items: center;
  border-radius: 8px;
  background: var(--color-card);
  border: 1px solid transparent;
  cursor: pointer;
  font-size: 14px;
  color: var(--color-gray);
  transition: all .15s;
}
.calendar-day.available:hover {
  border-color: var(--color-purple-neon);
  color: var(--color-white);
}
.calendar-day.selected {
  background: var(--gradient-primary);
  color: white;
  border-color: var(--color-blue);
}
.calendar-day.disabled {
  opacity: .3;
  cursor: not-allowed;
  background: transparent;
}
.calendar-day.weekday {
  background: transparent;
  font-family: var(--font-accent);
  font-size: 11px;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--color-purple-neon);
  cursor: default;
}
.calendar-nav {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 16px;
}
.calendar-month {
  font-family: var(--font-display);
  letter-spacing: 2px;
}
.calendar-nav button {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  color: var(--color-white);
  width: 36px; height: 36px;
  border-radius: 8px;
}
.calendar-nav button:hover {
  border-color: var(--color-blue);
}

.time-slots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
  gap: 8px;
  margin-top: 16px;
}
.time-slot {
  padding: 10px;
  text-align: center;
  background: var(--color-bg-elev);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  font-family: var(--font-accent);
  cursor: pointer;
  font-size: 14px;
  transition: all .15s;
}
.time-slot:hover { border-color: var(--color-purple-neon); }
.time-slot.selected {
  background: var(--gradient-primary);
  color: white;
  border-color: var(--color-blue);
}
.time-slot.taken {
  opacity: .35;
  cursor: not-allowed;
  text-decoration: line-through;
}

/* ============================================================
   BADGES
============================================================ */
.badge {
  display: inline-block;
  padding: 4px 12px;
  border-radius: 999px;
  font-size: 11px;
  font-family: var(--font-accent);
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}
.badge-success { background: rgba(34, 197, 94, 0.15); color: var(--color-success); border: 1px solid var(--color-success); }
.badge-warning { background: rgba(250, 204, 21, 0.15); color: var(--color-warning); border: 1px solid var(--color-warning); }
.badge-danger  { background: rgba(239, 68, 68, 0.15); color: var(--color-danger);  border: 1px solid var(--color-danger); }
.badge-info    { background: rgba(0, 163, 255, 0.15); color: var(--color-blue);    border: 1px solid var(--color-blue); }

/* ============================================================
   TABLES (Admin)
============================================================ */
.data-table-wrap { overflow-x: auto; border-radius: var(--radius); border: 1px solid var(--color-border); }
.data-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--color-card);
  min-width: 700px;
}
.data-table th, .data-table td {
  padding: 14px 18px;
  text-align: left;
  border-bottom: 1px solid var(--color-border);
  font-size: 14px;
}
.data-table th {
  background: var(--color-bg-elev);
  font-family: var(--font-accent);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-purple-neon);
}
.data-table tr:last-child td { border-bottom: 0; }
.data-table tr:hover td { background: rgba(139, 92, 246, 0.04); }
.actions-cell { display: flex; gap: 6px; flex-wrap: wrap; }

/* ============================================================
   ADMIN LAYOUT
============================================================ */
.admin-layout {
  display: grid;
  grid-template-columns: 240px 1fr;
  min-height: 100vh;
}
.admin-sidebar {
  background: var(--color-bg-elev);
  border-right: 1px solid var(--color-border);
  padding: 24px 16px;
  position: sticky; top: 0; height: 100vh;
  overflow-y: auto;
}
.admin-sidebar h3 {
  font-size: 11px;
  letter-spacing: 2px;
  color: var(--color-gray-muted);
  margin: 16px 8px 8px;
  font-family: var(--font-accent);
}
.admin-sidebar a {
  display: flex; align-items: center; gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  color: var(--color-gray);
  margin-bottom: 2px;
  font-size: 14px;
  transition: all .15s;
}
.admin-sidebar a:hover {
  background: rgba(139, 92, 246, 0.08);
  color: var(--color-white);
}
.admin-sidebar a.active {
  background: var(--gradient-primary);
  color: var(--color-white);
}
.admin-content { padding: 32px; min-width: 0; }
.admin-header {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 32px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--color-border);
}
.admin-header h1 { margin: 0; font-size: 1.6rem; }

@media (max-width: 900px) {
  .admin-layout { grid-template-columns: 1fr; }
  .admin-sidebar {
    position: relative; height: auto;
    border-right: none;
    border-bottom: 1px solid var(--color-border);
  }
}

/* Stat cards */
.stats-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 20px;
  margin-bottom: 32px;
}
.stat-card {
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 22px;
  position: relative;
  overflow: hidden;
}
.stat-card::before {
  content: '';
  position: absolute; right: -20px; top: -20px;
  width: 100px; height: 100px;
  background: var(--gradient-primary);
  opacity: .08;
  border-radius: 50%;
  filter: blur(20px);
}
.stat-label {
  font-family: var(--font-accent);
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--color-gray-muted);
  margin-bottom: 8px;
}
.stat-value {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 900;
  color: var(--color-white);
}
.stat-meta { font-size: 12px; color: var(--color-gray-muted); margin-top: 6px; }

/* ============================================================
   FOOTER
============================================================ */
.footer {
  background: var(--color-bg-elev);
  border-top: 1px solid var(--color-border);
  padding: 60px 0 24px;
  margin-top: 80px;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
}
.footer-logo {
  display: flex; align-items: center; gap: 12px;
  margin-bottom: 16px;
  font-family: var(--font-display);
  letter-spacing: 2px;
}
.footer-tagline {
  color: var(--color-gray);
  font-style: italic;
  line-height: 1.5;
  font-family: var(--font-accent);
}
.footer h4 {
  font-size: 13px;
  letter-spacing: 2px;
  color: var(--color-purple-neon);
  margin-bottom: 16px;
}
.footer-list li { padding: 4px 0; }
.footer-list a { color: var(--color-gray); font-size: 14px; }
.footer-bottom {
  padding-top: 20px;
  text-align: center;
  color: var(--color-gray-muted);
  font-size: 13px;
}

/* ============================================================
   AUTH PAGES
============================================================ */
.auth-wrap {
  min-height: calc(100vh - 80px);
  display: grid;
  place-items: center;
  padding: 40px 20px;
}
.auth-card {
  width: 100%;
  max-width: 440px;
  background: var(--color-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-card);
}
.auth-card h1 { text-align: center; margin-bottom: 8px; font-size: 1.8rem; }
.auth-card p.subtitle { text-align: center; color: var(--color-gray); margin-bottom: 28px; }
.auth-switch { text-align: center; margin-top: 20px; color: var(--color-gray); font-size: 14px; }

/* ============================================================
   PAYMENT BOX
============================================================ */
.payment-box {
  background: var(--color-bg-elev);
  border: 1px dashed var(--color-purple-neon);
  border-radius: var(--radius);
  padding: 24px;
  margin: 20px 0;
}
.payment-box dt { color: var(--color-gray-muted); font-size: 12px; text-transform: uppercase; margin-top: 8px; }
.payment-box dd { margin: 4px 0 0; font-family: var(--font-accent); font-size: 17px; letter-spacing: 1px; }

/* ============================================================
   UTILITIES
============================================================ */
.text-center { text-align: center; }
.text-muted { color: var(--color-gray); }
.mt-1 { margin-top: 8px; }
.mt-2 { margin-top: 16px; }
.mt-3 { margin-top: 24px; }
.mt-4 { margin-top: 32px; }
.mb-1 { margin-bottom: 8px; }
.mb-2 { margin-bottom: 16px; }
.mb-3 { margin-bottom: 24px; }
.mb-4 { margin-bottom: 32px; }
.flex { display: flex; }
.flex-between { display: flex; justify-content: space-between; align-items: center; gap: 16px; }
.gap-2 { gap: 16px; }
.divider { height: 1px; background: var(--color-border); margin: 24px 0; }

/* Animations */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .6s ease-out both; }
.delay-1 { animation-delay: .1s; }
.delay-2 { animation-delay: .2s; }
.delay-3 { animation-delay: .3s; }
.delay-4 { animation-delay: .4s; }

/* ============================================================
   ADMIN ENHANCED STYLES
   ============================================================ */
.admin-body { background: var(--color-bg); }

.admin-brand { padding: 24px 20px 20px; border-bottom: 1px solid var(--color-border); }
.admin-brand-link { display: flex; align-items: center; gap: 12px; color: var(--color-white); text-decoration: none; }
.brand-mark {
  width: 40px; height: 40px; border-radius: 10px;
  background: linear-gradient(135deg, var(--color-purple-neon), var(--color-blue));
  display: flex; align-items: center; justify-content: center;
  font-family: 'Orbitron', sans-serif; font-weight: 900; font-size: 1.3rem; color: #05050A;
}
.brand-name { font-family: 'Orbitron', sans-serif; font-weight: 700; font-size: 1rem; letter-spacing: 0.5px; }

.admin-nav { padding: 16px 12px; flex: 1; }
.admin-nav-item {
  display: flex; align-items: center; gap: 12px;
  padding: 12px 14px; margin-bottom: 4px;
  color: var(--color-gray); text-decoration: none;
  border-radius: 10px; font-size: 0.95rem;
  transition: 0.2s;
}
.admin-nav-item:hover { background: rgba(139,92,246,0.08); color: var(--color-white); }
.admin-nav-item.active {
  background: linear-gradient(90deg, rgba(139,92,246,0.18), rgba(0,163,255,0.08));
  color: var(--color-white);
  border-left: 3px solid var(--color-purple-neon);
}
.admin-nav-item .ico { font-size: 1.1rem; }

.admin-foot { padding: 16px 20px; border-top: 1px solid var(--color-border); }
.admin-user-name { font-weight: 700; color: var(--color-white); font-size: 0.95rem; }
.admin-user-role { font-size: 0.8rem; color: var(--color-gray); margin-bottom: 10px; }
.admin-logout {
  display: block; text-align: center;
  padding: 8px 12px;
  background: rgba(239,68,68,0.1);
  color: var(--color-danger);
  text-decoration: none; border-radius: 8px;
  font-size: 0.85rem; font-weight: 600;
  border: 1px solid rgba(239,68,68,0.3);
}
.admin-logout:hover { background: rgba(239,68,68,0.2); }

.admin-sidebar { display: flex; flex-direction: column; }

.page-title {
  font-family: 'Orbitron', sans-serif;
  font-size: 1.8rem; margin-bottom: 6px;
  background: linear-gradient(90deg, var(--color-white), var(--color-purple-neon));
  -webkit-background-clip: text; background-clip: text; -webkit-text-fill-color: transparent;
}
.page-subtitle { color: var(--color-gray); margin-bottom: 32px; }

.btn-sm { padding: 6px 12px; font-size: 0.85rem; border-radius: 8px; }
.btn-success {
  background: var(--color-success); color: #05050A; border: none;
  padding: 8px 14px; border-radius: 8px; font-weight: 700; cursor: pointer;
  text-decoration: none; display: inline-block; font-size: 0.85rem;
}
.btn-danger {
  background: var(--color-danger); color: white; border: none;
  padding: 8px 14px; border-radius: 8px; font-weight: 700; cursor: pointer;
  text-decoration: none; display: inline-block; font-size: 0.85rem;
}
.btn-warning {
  background: var(--color-warning); color: #05050A; border: none;
  padding: 8px 14px; border-radius: 8px; font-weight: 700; cursor: pointer;
  text-decoration: none; display: inline-block; font-size: 0.85rem;
}
.btn-block { display: block; width: 100%; text-align: center; }

.action-bar { display: flex; gap: 8px; flex-wrap: wrap; }

.flash {
  padding: 14px 18px; border-radius: 10px; margin-bottom: 20px;
  font-weight: 600;
}
.flash-success { background: rgba(34,197,94,0.12); border: 1px solid rgba(34,197,94,0.35); color: #86efac; }
.flash-error   { background: rgba(239,68,68,0.12); border: 1px solid rgba(239,68,68,0.35); color: #fca5a5; }
.flash-warning { background: rgba(250,204,21,0.12); border: 1px solid rgba(250,204,21,0.35); color: #fde68a; }
.flash-info    { background: rgba(0,163,255,0.12); border: 1px solid rgba(0,163,255,0.35); color: #93c5fd; }

/* Tabla mejorada */
.data-table-wrap { background: var(--color-card); border-radius: 14px; padding: 6px; }
.data-table { width: 100%; }
.data-table thead tr { border-bottom: 1px solid var(--color-border); }
.data-table tbody tr:hover { background: rgba(139,92,246,0.04); }

/* Tarjeta detalle */
.detail-card { background: var(--color-card); border: 1px solid var(--color-border); border-radius: 14px; padding: 24px; margin-bottom: 20px; }
.detail-card h3 { font-family: 'Orbitron', sans-serif; margin: 0 0 16px; font-size: 1.1rem; color: var(--color-purple-neon); }
.detail-row { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px solid var(--color-border); }
.detail-row:last-child { border-bottom: none; }
.detail-row span { color: var(--color-gray); }
.detail-row strong { color: var(--color-white); text-align: right; }

/* Alumno layout */
.student-grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

/* Empty state */
.empty-state {
  text-align: center; padding: 40px 20px;
  color: var(--color-gray);
  background: var(--color-card); border-radius: 14px;
  border: 1px dashed var(--color-border);
}
.empty-state-icon { font-size: 2.5rem; margin-bottom: 10px; opacity: 0.6; }

.page-header {
  display: flex; justify-content: space-between; align-items: center;
  gap: 12px; flex-wrap: wrap; margin-bottom: 24px;
}

@media (max-width: 768px) {
  .admin-content { padding: 18px !important; }
  .page-title { font-size: 1.4rem; }
}