/* ============================================================
   BASE · Se carga en TODAS las páginas (después de tokens.css)
   Secciones: 1 Reset y documento · 2 Texto · 3 Botón
   ============================================================ */

/* ============================================================
   1. RESET Y DOCUMENTO
   ============================================================ */

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

html {
  scrollbar-gutter: stable;
  overflow-x: hidden; /* Oculta por completo el scroll inferior horizontal */
}

body {
  margin: 0;
  padding: 0;
  background-color: var(--go-bg);
  overflow-x: hidden; /* Previene desbordes horizontales */
}

/* ---- Scrollbar vertical (Lateral Derecho) siempre visible y estilizado ---- */
body::-webkit-scrollbar {
  width: 10px; /* Ancho visible predeterminado para la derecha */
  background: var(--go-navy);
}

body::-webkit-scrollbar-thumb {
  background: linear-gradient(180deg, var(--go-cyan), var(--go-blue));
  border-radius: 10px;
  border: 2px solid var(--go-navy);
}

body::-webkit-scrollbar-thumb:hover {
  background: linear-gradient(180deg, var(--go-cyan), var(--go-teal));
}
/* ============================================================
   2. TEXTO
   Configuración basada en Google Sans y tokens globales.
   ============================================================ */

/* --- Cuerpo --- */
body {
  color: var(--go-ink);
  font-family: var(--font-primary);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  font-weight: 400;
  font-style: normal;
  font-optical-sizing: auto;
  letter-spacing: var(--tracking-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Títulos --- */
h1, .h1 {
  font-family: var(--font-display);
  font-size: var(--fs-h1);
  line-height: var(--lh-h1);
  font-weight: 600;
  letter-spacing: var(--tracking-h1);
  color: var(--go-ink);
  margin: 0 0 20px 0;
}

h2, .h2 {
  font-family: var(--font-display);
  font-size: var(--fs-h2);
  font-weight: var(--fw-h2);
  line-height: var(--lh-h2);
  letter-spacing: var(--tracking-h2);
  margin: 0 0 var(--space-h2-bottom) 0;
  
  /* Efecto de gradiente aplicado automáticamente a todos los H2 */
  background: var(--grad-h2);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}

h3, .h3 {
  font-family: var(--font-display);
  font-size: var(--fs-h3);
  line-height: var(--lh-h3);
  font-weight: 600;
  letter-spacing: var(--tracking-h3);
  color: var(--go-ink);
  margin: 0 0 16px 0;
}

h4, .h4 {
  font-family: var(--font-primary);
  font-size: 19px;
  line-height: 1.21;
  font-weight: 600;
  letter-spacing: -0.003em;
  color: var(--go-ink);
  margin: 0 0 12px 0;
}

/* --- Párrafos --- */
p {
  font-family: var(--font-primary);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  letter-spacing: var(--tracking-body);
  color: var(--color-body);
  margin: 0 0 var(--space-body-bottom) 0;
}

/* --- Enlaces --- */
a {
  color: inherit;
  text-decoration: none;
}

/* --- Texto pequeño --- */
small { font-size: var(--fs-small); }

/* --- Fuerte --- */
strong, b { font-weight: 600; }

/* ============================================================
   3. BOTÓN GLASS  .GO_btn
   Reutilizable en cualquier página.
   ============================================================ */

.GO_btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 210px;
  height: 56px;
  flex-shrink: 0;
  border-radius: 60px;
  border: none;
  cursor: pointer;
  padding: 0;
  text-decoration: none;
  overflow: hidden;
  box-shadow:
    0 12px 28px rgba(0, 0, 0, 0.30),
    0 4px  10px rgba(0, 0, 0, 0.18);
  background: #ffffff;
  transition:
    transform  0.4s var(--ease-smooth),
    box-shadow 0.4s ease;
  isolation: isolate;
}

.GO_btn:hover {
  transform: translateY(-3px);
  box-shadow:
    0 18px 38px rgba(0, 0, 0, 0.38),
    0 8px  16px rgba(0, 0, 0, 0.22);
}

.GO_btn_gradient {
  position: absolute;
  inset: 0;
  border-radius: inherit;
  z-index: 1;
  background:
    radial-gradient(circle at 30% 30%, #BCCF00 0%, transparent 45%),
    radial-gradient(circle at 75% 40%, #00A29E 0%, transparent 50%),
    radial-gradient(circle at 60% 80%, #BCCF00 0%, transparent 50%),
    radial-gradient(circle at 40% 65%, #f0e8dd 0%, transparent 45%);
  background-size: 200% 200%;
  background-position: 0% 50%;
  filter: blur(12px) saturate(1.5);
  opacity: 0.85;
  animation: GO_gradient_move 8s ease-in-out infinite;
  transition: opacity 0.5s ease;
  pointer-events: none;
}

@keyframes GO_gradient_move {
  0%   { background-position: 0% 50%;   transform: scale(1)    rotate(0deg);  }
  25%  { background-position: 100% 50%; transform: scale(1.1)  rotate(8deg);  }
  50%  { background-position: 100% 100%; transform: scale(1.05) rotate(-5deg); }
  75%  { background-position: 0% 100%;  transform: scale(1.1)  rotate(6deg);  }
  100% { background-position: 0% 50%;   transform: scale(1)    rotate(0deg);  }
}

.GO_btn:hover .GO_btn_gradient {
  animation-play-state: paused;
  opacity: 1;
}

/* Brillo interior estilo iOS */
.GO_btn::before {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  z-index: 2;
  pointer-events: none;
  box-shadow:
    inset 0  1px 1px rgba(255, 255, 255, 0.9),
    inset 0 -2px 6px rgba(255, 255, 255, 0.5),
    inset 0  0   0 1px rgba(255, 255, 255, 0.6);
}

.GO_btn_content {
  position: relative;
  z-index: 3;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 100%;
  padding: 0 24px;
}

.GO_btn_icon {
  position: absolute;
  left: 26px;
  top: 50%;
  transform: translateY(-50%) translateX(-20px);
  opacity: 0;
  width: 20px;
  height: 20px;
  color: var(--go-ink);
  transition:
    opacity   0.45s var(--ease-smooth),
    transform 0.45s var(--ease-smooth);
  pointer-events: none;
}

.GO_btn_text {
  display: inline-block;
  font-size: 15px;
  font-weight: 500;
  letter-spacing: -0.02em;
  color: var(--go-ink);
  background: linear-gradient(135deg, var(--go-ink) 0%, #4a4a4f 100%);
  -webkit-background-clip: text;
          background-clip: text;
  -webkit-text-fill-color: transparent;
  transform: translateX(0);
  transition: transform 0.45s var(--ease-smooth);
  white-space: nowrap;
}

.GO_btn:hover .GO_btn_text { transform: translateX(14px); }
.GO_btn:hover .GO_btn_icon {
  opacity: 1;
  transform: translateY(-50%) translateX(0);
}