/* ============================================================
   RIIVAL — Main CSS
   Rock / Metal / Barbería Moderna
   ============================================================ */

@import url('https://fonts.googleapis.com/css2?family=Bebas+Neue&family=Oswald:wght@300;400;600;700&family=Rajdhani:wght@300;400;600;700&display=swap');

:root {
  --negro: #0a0a0a;
  --negro2: #111111;
  --negro3: #1a1a1a;
  --gris-oscuro: #222222;
  --gris: #333333;
  --gris-claro: #555555;
  --rojo: #c0392b;
  --rojo-hover: #e74c3c;
  --rojo-oscuro: #922b21;
  --metal: #a8a9ad;
  --metal-claro: #d4d5d9;
  --blanco: #f0f0f0;
  --texto: #cccccc;
  --borde: #2a2a2a;
  --font-title: 'Bebas Neue', sans-serif;
  --font-body: 'Rajdhani', sans-serif;
  --font-sub: 'Oswald', sans-serif;
  --transition: 0.3s ease;
}

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

html { scroll-behavior: smooth; }

body {
  background-color: var(--negro);
  color: var(--texto);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
}

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--negro2); }
::-webkit-scrollbar-thumb { background: var(--rojo); border-radius: 3px; }

/* ── Tipografía ── */
h1, h2, h3, h4 { font-family: var(--font-title); letter-spacing: 3px; color: var(--blanco); }
h1 { font-size: clamp(2.5rem, 8vw, 6rem); }
h2 { font-size: clamp(1.8rem, 5vw, 3.5rem); }
h3 { font-size: clamp(1.2rem, 3vw, 2rem); }
p { font-family: var(--font-body); font-size: 1rem; }
a { text-decoration: none; color: inherit; }

/* ── Navbar ── */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 40px;
  background: rgba(10,10,10,0.95);
  border-bottom: 1px solid var(--borde);
  backdrop-filter: blur(8px);
  transition: var(--transition);
}
.navbar.scrolled { border-bottom-color: var(--rojo); }
.navbar-brand {
  font-family: var(--font-title);
  font-size: 2rem;
  letter-spacing: 6px;
  color: var(--blanco);
}
.navbar-brand span { color: var(--rojo); }
.navbar-links { display: flex; gap: 28px; align-items: center; }
.navbar-links a {
  font-family: var(--font-sub);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--metal);
  transition: color var(--transition);
  position: relative;
}
.navbar-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0; right: 0;
  height: 2px;
  background: var(--rojo);
  transform: scaleX(0);
  transition: transform var(--transition);
}
.navbar-links a:hover { color: var(--blanco); }
.navbar-links a:hover::after { transform: scaleX(1); }
.navbar-links a.active { color: var(--rojo); }
.navbar-toggle { display: none; flex-direction: column; gap: 5px; cursor: pointer; padding: 4px; }
.navbar-toggle span { display: block; width: 24px; height: 2px; background: var(--blanco); transition: var(--transition); }

/* ── Botones ── */
.btn {
  display: inline-block;
  padding: 14px 36px;
  font-family: var(--font-sub);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  border: none;
  cursor: pointer;
  transition: var(--transition);
  text-align: center;
}
.btn-primary {
  background: var(--rojo);
  color: var(--blanco);
}
.btn-primary:hover { background: var(--rojo-hover); transform: translateY(-2px); box-shadow: 0 8px 24px rgba(192,57,43,0.4); }
.btn-outline {
  background: transparent;
  color: var(--blanco);
  border: 2px solid var(--blanco);
}
.btn-outline:hover { border-color: var(--rojo); color: var(--rojo); }
.btn-metal {
  background: linear-gradient(135deg, #444, #888, #444);
  color: var(--blanco);
}
.btn-metal:hover { background: linear-gradient(135deg, #666, #aaa, #666); }
.btn-lg { padding: 18px 54px; font-size: 1.1rem; letter-spacing: 4px; }
.btn-block { display: block; width: 100%; }

/* ── Separador metálico ── */
.divider {
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--rojo), var(--metal), var(--rojo), transparent);
  margin: 40px 0;
}
.divider-thin {
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gris), transparent);
  margin: 20px 0;
}

/* ── Sección genérica ── */
.section { padding: 80px 0; }
.section-dark { background: var(--negro2); }
.container { max-width: 1200px; margin: 0 auto; padding: 0 24px; }

/* ── Badge / Tags ── */
.badge {
  display: inline-block;
  padding: 3px 12px;
  font-family: var(--font-sub);
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  background: var(--rojo);
  color: var(--blanco);
  border-radius: 2px;
}
.badge-metal { background: linear-gradient(135deg, #444, #888); }
.badge-outline { background: transparent; border: 1px solid var(--rojo); color: var(--rojo); }

/* ── Cards ── */
.card {
  background: var(--negro3);
  border: 1px solid var(--borde);
  transition: var(--transition);
  overflow: hidden;
}
.card:hover { border-color: var(--rojo); transform: translateY(-4px); box-shadow: 0 12px 32px rgba(192,57,43,0.15); }
.card-img { width: 100%; aspect-ratio: 4/3; object-fit: cover; display: block; background: var(--gris-oscuro); }
.card-body { padding: 20px; }
.card-title { font-family: var(--font-sub); font-size: 1rem; font-weight: 700; letter-spacing: 1px; color: var(--blanco); margin-bottom: 6px; }
.card-text { font-size: 0.9rem; color: var(--metal); }

/* ── Formulario ── */
.form-group { margin-bottom: 20px; }
.form-label {
  display: block;
  font-family: var(--font-sub);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--metal);
  margin-bottom: 8px;
}
.form-control {
  width: 100%;
  padding: 12px 16px;
  background: var(--negro3);
  border: 1px solid var(--gris);
  color: var(--blanco);
  font-family: var(--font-body);
  font-size: 1rem;
  outline: none;
  transition: border-color var(--transition);
  border-radius: 2px;
}
.form-control:focus { border-color: var(--rojo); background: var(--negro2); }
.form-control option { background: var(--negro3); color: var(--blanco); }

/* ── Grid responsive ── */
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 24px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; }

/* ── Texto utilitario ── */
.text-center { text-align: center; }
.text-red { color: var(--rojo); }
.text-metal { color: var(--metal); }
.text-white { color: var(--blanco); }
.text-small { font-size: 0.85rem; }
.mt-8 { margin-top: 8px; }
.mt-16 { margin-top: 16px; }
.mt-24 { margin-top: 24px; }
.mt-40 { margin-top: 40px; }
.mb-8 { margin-bottom: 8px; }
.mb-16 { margin-bottom: 16px; }
.mb-24 { margin-bottom: 24px; }
.mb-40 { margin-bottom: 40px; }

/* ── Loader ── */
.loader {
  display: inline-block;
  width: 20px; height: 20px;
  border: 2px solid var(--gris);
  border-top-color: var(--rojo);
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── Alert ── */
.alert {
  padding: 14px 20px;
  border-left: 4px solid var(--rojo);
  background: rgba(192,57,43,0.1);
  font-size: 0.9rem;
  margin: 16px 0;
}
.alert-success { border-color: #27ae60; background: rgba(39,174,96,0.1); color: #2ecc71; }
.alert-error { border-color: var(--rojo); color: #e74c3c; }
.alert-info { border-color: #2980b9; background: rgba(41,128,185,0.1); color: #3498db; }

/* ── Footer ── */
footer {
  background: var(--negro2);
  border-top: 1px solid var(--borde);
  padding: 48px 0 24px;
}
.footer-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 40px; }
.footer-brand { font-family: var(--font-title); font-size: 2.2rem; letter-spacing: 5px; }
.footer-brand span { color: var(--rojo); }
.footer-desc { font-size: 0.9rem; color: var(--gris-claro); margin-top: 10px; line-height: 1.7; }
.footer-title { font-family: var(--font-sub); font-size: 0.8rem; font-weight: 700; letter-spacing: 3px; text-transform: uppercase; color: var(--metal); margin-bottom: 16px; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { font-size: 0.9rem; color: var(--gris-claro); transition: color var(--transition); }
.footer-links a:hover { color: var(--rojo); }
.footer-bottom { margin-top: 40px; padding-top: 20px; border-top: 1px solid var(--borde); display: flex; justify-content: space-between; align-items: center; font-size: 0.8rem; color: var(--gris-claro); }

/* ── Efecto brillo metálico en texto ── */
.text-shine {
  background: linear-gradient(90deg, var(--metal-claro), var(--blanco), var(--metal), var(--blanco), var(--metal-claro));
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shine 4s linear infinite;
}
@keyframes shine { to { background-position: 200% center; } }

/* ── Responsive ── */
@media (max-width: 900px) {
  .grid-4 { grid-template-columns: repeat(2, 1fr); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 600px) {
  .navbar { padding: 12px 20px; }
  .navbar-links { display: none; flex-direction: column; position: absolute; top: 60px; left: 0; right: 0; background: var(--negro2); padding: 20px; border-bottom: 1px solid var(--borde); }
  .navbar-links.open { display: flex; }
  .navbar-toggle { display: flex; }
  .grid-2, .grid-3, .grid-4 { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }
  .section { padding: 50px 0; }
}