/* ════════════════════════════════════════════════════════════
   krebora — sistema de diseño compartido
   Paleta «Nebulosa»: cian → azul → violeta, sobre espacio profundo.
   Los tonos cálidos siguen definidos porque viven en las portadas,
   pero el cromo del sitio es frío.
   ════════════════════════════════════════════════════════════ */

:root {
  --bg-0:        #050510;
  --bg-1:        #0a0a1c;
  --bg-2:        #101028;

  --orange:      #ffa53f;
  --coral:       #ff6a5e;
  --pink:        #ff4f8d;
  --violet:      #8b5cf6;
  --blue:        #5aa7ff;
  --cyan:        #7fd8ff;

  --white:       #f4f1ea;   /* crema del logo */
  --white-dim:   rgba(244,241,234,.62);
  --white-faint: rgba(244,241,234,.38);

  --glass-bg:     rgba(255,255,255,.045);
  --glass-border: rgba(255,255,255,.10);

  /* Acento del sitio y su tinta sobre el degradado */
  --accent:      var(--blue);
  --accent-soft: var(--cyan);
  --ink:         #08111f;

  --gradient-main: linear-gradient(120deg, var(--cyan) 0%, var(--blue) 45%, var(--violet) 100%);
  --gradient-cta:  linear-gradient(135deg, var(--blue), var(--violet));

  --glow-cta: 0 10px 60px rgba(90,167,255,.34);

  --radius:     18px;
  --transition: .35s cubic-bezier(.25,.8,.25,1);
  --font-body: 'Archivo', system-ui, sans-serif;
  --font-mono: 'Space Mono', monospace;
}

/* Transiciones suaves entre páginas (View Transitions API) */
@view-transition { navigation: auto; }

::view-transition-old(root),
::view-transition-new(root) {
  animation-duration: .35s;
}

/* ── Reset & base ─────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: var(--font-body);
  background:
    radial-gradient(1100px 700px at 80% -10%, rgba(90,60,160,.18), transparent 60%),
    radial-gradient(900px 600px at -10% 30%, rgba(139,92,246,.14), transparent 60%),
    var(--bg-0);
  color: var(--white);
  overflow-x: hidden;
  line-height: 1.6;
  min-height: 100svh;
}

::selection { background: var(--violet); color: #fff; }

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--bg-0); }
::-webkit-scrollbar-thumb { background: var(--gradient-main); border-radius: 99px; }

a { -webkit-tap-highlight-color: transparent; }

:focus-visible {
  outline: 2px solid var(--cyan);
  outline-offset: 3px;
  border-radius: 4px;
}

/* Grano de película sobre todo el sitio */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.75' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.05'/%3E%3C/svg%3E");
  background-size: 200px;
  pointer-events: none;
  opacity: .55;
}

#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
}

/* ── Fondo espacial dinámico ───────────────────────────────
   Eco de los anillos y el núcleo de la portada del EP: un
   halo azul/blanco en el centro rodeado de anillos cónicos
   naranja → rosa → azul que giran muy lentamente. ────────── */
.cosmic-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  pointer-events: none;
}

.cosmic-core {
  position: absolute;
  top: 38%;
  left: 50%;
  width: min(150vw, 1500px);
  height: min(150vw, 1500px);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: radial-gradient(circle at center,
    rgba(150,210,255,.14) 0%,
    rgba(90,167,255,.08) 20%,
    rgba(123,60,200,.05) 40%,
    transparent 62%);
  filter: blur(6px);
}

.cosmic-ring {
  position: absolute;
  top: 38%;
  left: 50%;
  width: min(130vw, 1300px);
  height: min(130vw, 1300px);
  transform: translate(-50%, -50%);
  border-radius: 50%;
  background: conic-gradient(from 0deg,
    transparent 0deg,
    rgba(127,216,255,.14) 35deg,
    transparent 95deg,
    rgba(139,92,246,.13) 165deg,
    transparent 220deg,
    rgba(90,167,255,.12) 290deg,
    transparent 345deg);
  filter: blur(50px);
  animation: cosmicSpin 100s linear infinite;
  will-change: transform;
}

.cosmic-ring.rev {
  width: min(95vw, 950px);
  height: min(95vw, 950px);
  animation-duration: 70s;
  animation-direction: reverse;
  opacity: .75;
}

@keyframes cosmicSpin {
  from { transform: translate(-50%, -50%) rotate(0deg); }
  to   { transform: translate(-50%, -50%) rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
  .cosmic-ring { animation: none; }
}

@media (max-width: 640px) {
  .cosmic-core, .cosmic-ring { top: 30%; }
}

.site-wrap { position: relative; z-index: 2; }

/* ── Nav ──────────────────────────────────────────────────── */
/* Layout de 3 columnas al estilo Haken: enlaces / logo centrado / redes */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  column-gap: .75rem;
  padding: 1.5rem 2rem;
  backdrop-filter: blur(18px) saturate(1.5);
  -webkit-backdrop-filter: blur(18px) saturate(1.5);
  background: rgba(5,5,16,.55);
  border-bottom: 1px solid transparent;
  transition: background var(--transition), border-color var(--transition);
}

.site-nav.scrolled {
  background: rgba(5,5,16,.86);
  border-bottom-color: rgba(255,255,255,.07);
}

/* La marca, escrita: versalitas muy abiertas al centro de la barra */
.nav-wordmark {
  grid-column: 2;
  justify-self: center;
  display: block;
  color: var(--white);
  text-decoration: none;
  font-size: 1.25rem;
  font-weight: 500;
  letter-spacing: .42em;
  text-indent: .42em;   /* devuelve al centro lo que el tracking empuja */
  text-transform: uppercase;
  white-space: nowrap;
  transition: color var(--transition);
}

.nav-wordmark:hover { color: var(--cyan); }

.nav-links {
  grid-column: 1;
  justify-self: start;
  display: flex;
  gap: 1.75rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--white-dim);
  text-decoration: none;
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  position: relative;
  padding: .25rem 0;
  transition: color var(--transition);
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0;
  width: 0; height: 1px;
  background: var(--gradient-main);
  transition: width var(--transition);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] { color: var(--white); }
.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after { width: 100%; }

/* Redes sociales del nav — iconos pequeños a la derecha */
.nav-socials {
  grid-column: 3;
  justify-self: end;
  display: flex;
  align-items: center;
  gap: .4rem;
}

.nav-social {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 13px;
  color: var(--white-dim);
  transition: color .2s, background .2s, transform .2s;
}

.nav-social svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
  display: block;
  flex-shrink: 0;
}

.nav-social:hover {
  color: var(--white);
  background: rgba(255,255,255,.08);
  transform: translateY(-1px);
}

.nav-social.spotify:hover    { color: #1DB954; }
.nav-social.youtube:hover    { color: #FF4444; }
.nav-social.instagram:hover  { color: #E1306C; }
.nav-social.applemusic:hover { color: #FA57C1; }

/* Burger + drawer móvil */
.nav-burger {
  grid-column: 1;
  justify-self: start;
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: .5rem;
}

.nav-burger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

.mobile-drawer {
  position: fixed;
  inset: 0;
  z-index: 99;
  background: rgba(5,5,16,.96);
  backdrop-filter: blur(24px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 2.25rem;
  opacity: 0;
  visibility: hidden;
  transition: opacity .3s, visibility .3s;
}

.mobile-drawer.open { opacity: 1; visibility: visible; }

.mobile-drawer a {
  font-size: 1.6rem;
  font-weight: 700;
  color: var(--white);
  text-decoration: none;
  letter-spacing: .1em;
  text-transform: uppercase;
}

.mobile-drawer a:hover { color: var(--accent); }

@media (max-width: 768px) {
  .nav-links { display: none; }
  .nav-burger { display: flex; }
  .nav-wordmark { font-size: 1.05rem; letter-spacing: .34em; text-indent: .34em; }
  /* Los iconos no caben junto al burger y el logo en pantallas angostas;
     se muestran dentro del drawer móvil en su lugar. */
  .nav-socials { display: none; }
}

.mobile-drawer .socials {
  width: 100%;
  margin-top: -.5rem;
  padding: 0 1.5rem;
  gap: .6rem;
}

/* ── Tipografía de sección ────────────────────────────────── */
.section-label {
  font-family: var(--font-mono);
  font-size: .68rem;
  letter-spacing: .45em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 1rem;
}

.section-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  letter-spacing: -.035em;
  line-height: 1.06;
}

.gradient-text {
  background: var(--gradient-main);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

.divider {
  width: 64px;
  height: 2px;
  background: var(--gradient-main);
  border-radius: 99px;
  margin: 1.5rem auto 0;
}

/* ── Botones ──────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: .55rem;
  padding: .85rem 2rem;
  border-radius: 99px;
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 600;
  letter-spacing: .05em;
  text-decoration: none;
  cursor: pointer;
  border: none;
  transition: transform .2s, box-shadow .2s, background var(--transition), border-color var(--transition);
}

.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: var(--gradient-cta);
  color: var(--ink);
  box-shadow: var(--glow-cta);
}

.btn-primary:hover { box-shadow: 0 12px 70px rgba(90,167,255,.50); }

.btn-ghost {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  color: var(--white);
  backdrop-filter: blur(10px);
}

.btn-ghost:hover { border-color: var(--accent); background: rgba(255,255,255,.08); }

/* ── Botones sociales redondos ────────────────────────────── */
.socials {
  display: flex;
  gap: .9rem;
  justify-content: center;
  flex-wrap: wrap;
}

.social-btn {
  --brand: var(--blue);
  position: relative;
  width: 52px;
  height: 52px;
  border-radius: 16px;
  border: 1px solid transparent;
  background:
    linear-gradient(150deg, rgba(255,255,255,.09), rgba(255,255,255,.02)) padding-box,
    linear-gradient(150deg, rgba(255,255,255,.30), rgba(255,255,255,.05)) border-box;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  color: rgba(244,241,234,.85);
  text-decoration: none;
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  transition: transform .25s cubic-bezier(.34,1.56,.64,1), background .25s, color .25s, box-shadow .25s;
}

.social-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
  display: block;
  flex-shrink: 0;
  transition: transform .25s cubic-bezier(.34,1.56,.64,1);
}

.social-btn:hover {
  transform: translateY(-4px);
  color: var(--brand);
  background:
    linear-gradient(150deg,
      color-mix(in srgb, var(--brand) 16%, rgba(255,255,255,.04)),
      rgba(255,255,255,.02)) padding-box,
    linear-gradient(150deg,
      color-mix(in srgb, var(--brand) 70%, transparent),
      color-mix(in srgb, var(--brand) 15%, transparent)) border-box;
  box-shadow:
    0 10px 32px color-mix(in srgb, var(--brand) 30%, transparent),
    0 2px 10px rgba(0,0,0,.4);
}

.social-btn:hover svg { transform: scale(1.12); }

.social-btn:active { transform: translateY(-1px); }

.social-btn.spotify    { --brand: #1DB954; }
.social-btn.youtube    { --brand: #FF4444; }
.social-btn.instagram  { --brand: #E1306C; }
.social-btn.applemusic { --brand: #FA57C1; }

/* ── Tarjeta de vidrio genérica ───────────────────────────── */
.glass-card {
  position: relative;
  border-radius: var(--radius);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse at top left, rgba(90,167,255,.12), transparent 60%),
    radial-gradient(ellipse at bottom right, rgba(139,92,246,.10), transparent 60%);
  pointer-events: none;
}

/* ── Reveal on scroll ─────────────────────────────────────── */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity .7s ease, transform .7s ease;
}

.reveal.visible { opacity: 1; transform: none; }

/* ── Footer ───────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--glass-border);
  padding: 2.5rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
  text-align: center;
}

.footer-logo img {
  height: 22px;
  width: auto;
  display: block;
  opacity: .9;
}

.footer-copy {
  font-size: .72rem;
  color: var(--white-faint);
  letter-spacing: .08em;
}

/* ── Animaciones ──────────────────────────────────────────── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50%      { transform: translateY(-10px); }
}

@keyframes haloSpin {
  from { transform: rotate(0deg); }
  to   { transform: rotate(360deg); }
}

@keyframes scrollPulse {
  0%, 100% { transform: scaleY(1); opacity: .7; }
  50%      { transform: scaleY(.45); opacity: .25; }
}

/* Accesibilidad: respetar reducción de movimiento */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  #bg-canvas { display: none; }
}