/* ===== Variables ===== */
:root {
  --crimson: #C41E3A;
  --crimson-dark: #8B0000;
  --coral: #FF6B6B;
  --coral-light: #FFB6C1;
  --navy: #0A1628;
  --navy-light: #1A2744;
  --white: #FFFFFF;
  --off-white: #F8F9FC;
  --gray-100: #E8ECF4;
  --gray-500: #6B7280;
  --gray-800: #1F2937;

  --gradient-hero: linear-gradient(135deg, var(--crimson-dark) 0%, var(--crimson) 40%, var(--coral) 100%);
  --gradient-btn: linear-gradient(135deg, var(--crimson) 0%, var(--coral) 100%);
  --shadow-sm: 0 2px 8px rgba(10, 22, 40, 0.08);
  --shadow-md: 0 8px 24px rgba(10, 22, 40, 0.12);
  --shadow-lg: 0 16px 48px rgba(10, 22, 40, 0.18);
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
  --radius-full: 9999px;
  --transition: 0.25s ease;
  --font: system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
}

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

html {
  scroll-behavior: smooth;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--font);
  font-size: 1rem;
  line-height: 1.6;
  color: var(--gray-800);
  background: var(--off-white);
  -webkit-font-smoothing: antialiased;
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--crimson);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--coral);
  outline: 2px solid var(--coral);
  outline-offset: 2px;
}

.container {
  width: 100%;
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  z-index: 200;
  padding: 0.75rem 1.25rem;
  background: var(--navy);
  color: var(--white);
  border-radius: var(--radius-sm);
  font-weight: 600;
}

.skip-link:focus {
  top: 1rem;
}

/* ===== Header / Nav ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(10, 22, 40, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  overflow: visible;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem 1rem;
  max-width: 1140px;
  margin-inline: auto;
  padding: 0.75rem 1.25rem 0.5rem;
}

.nav__brand {
  position: relative;
  z-index: 110;
  display: inline-flex;
  align-items: flex-start;
  line-height: 0;
  flex-shrink: 0;
  margin-bottom: -2.75rem;
}

.nav__brand:hover,
.nav__brand:focus-visible {
  outline-color: var(--coral-light);
}

.nav__logo {
  display: block;
  height: clamp(56px, 11vw, 96px);
  width: auto;
  max-width: none;
  object-fit: contain;
  filter: drop-shadow(0 12px 28px rgba(10, 22, 40, 0.55));
  transition: transform var(--transition), filter var(--transition);
  animation: logo-float 5s ease-in-out infinite;
}

@keyframes logo-float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(6px); }
}

.nav__brand:hover .nav__logo,
.nav__brand:focus-visible .nav__logo {
  filter: drop-shadow(0 16px 32px rgba(10, 22, 40, 0.6));
  transform: translateY(4px) scale(1.03);
  animation: none;
}

.nav__links {
  display: flex;
  gap: 1.5rem;
  list-style: none;
  align-self: center;
}

.nav__links a {
  color: rgba(255, 255, 255, 0.85);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

.nav__links a:hover,
.nav__links a:focus-visible {
  color: var(--white);
  outline-color: var(--coral-light);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 7.5rem 0 4rem;
  overflow: hidden;
  background: var(--gradient-hero);
}

.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

/* Textura sutil con ruido via gradiente repetido */
.hero__bg::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.04;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
  background-size: 128px 128px;
}

.hero__shape {
  position: absolute;
  border-radius: 50%;
  opacity: 0.12;
  background: var(--white);
}

.hero__shape--1 {
  width: 400px;
  height: 400px;
  top: -120px;
  right: -80px;
  animation: float 12s ease-in-out infinite;
}

.hero__shape--2 {
  width: 250px;
  height: 250px;
  bottom: 10%;
  left: -60px;
  animation: float 10s ease-in-out infinite reverse;
}

.hero__shape--3 {
  width: 150px;
  height: 150px;
  top: 40%;
  right: 20%;
  animation: float 8s ease-in-out infinite 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0) scale(1); }
  50% { transform: translateY(-20px) scale(1.05); }
}

.hero__inner {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 3rem;
  align-items: center;
}

.hero__logo-wrap {
  display: flex;
  justify-content: center;
}

/* ===== Radio Player (cuadrado hero) ===== */
.radio-player {
  width: min(320px, 80vw);
}

.radio-player__surface {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  width: 100%;
  aspect-ratio: 1;
  padding: 1.5rem;
  border: none;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--crimson-dark) 0%, var(--crimson) 55%, #A01830 100%);
  box-shadow: var(--shadow-lg);
  cursor: pointer;
  overflow: hidden;
  transition: transform var(--transition), box-shadow var(--transition);
  font-family: inherit;
  color: var(--white);
}

.radio-player__surface:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: 0 24px 56px rgba(10, 22, 40, 0.35);
}

.radio-player__surface:focus-visible {
  outline: 3px solid var(--coral-light);
  outline-offset: 4px;
}

.radio-player__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.radio-player__emblem {
  width: 100%;
  height: 100%;
  opacity: 0.6;
}

.radio-player__live {
  position: absolute;
  top: 1rem;
  left: 50%;
  transform: translateX(-50%);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.3rem 0.75rem;
  background: rgba(0, 0, 0, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  opacity: 0;
  transition: opacity var(--transition);
}

.radio-player.is-playing .radio-player__live,
.radio-player.is-loading .radio-player__live {
  opacity: 1;
}

.radio-player__live-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #FF4444;
  box-shadow: 0 0 8px rgba(255, 68, 68, 0.8);
  animation: live-pulse 1.5s ease-in-out infinite;
}

@keyframes live-pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.6; transform: scale(0.85); }
}

.radio-player__center {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  height: 55%;
}

.radio-player__icon {
  position: absolute;
  display: flex;
  align-items: center;
  justify-content: center;
  color: rgba(255, 255, 255, 0.95);
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.3));
  transition: opacity var(--transition), transform var(--transition);
}

.radio-player__icon--pause {
  opacity: 0;
  transform: scale(0.8);
}

.radio-player.is-playing .radio-player__icon--play {
  opacity: 0;
  transform: scale(0.8);
}

.radio-player.is-playing .radio-player__icon--pause {
  opacity: 1;
  transform: scale(1);
}

.radio-player.is-playing .radio-player__icon--play,
.radio-player.is-loading .radio-player__icon--play {
  opacity: 0;
}

/* Ondas animadas */
.radio-player__waves {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  height: 80px;
  opacity: 0;
  transition: opacity 0.4s ease;
}

.radio-player.is-playing .radio-player__waves {
  opacity: 1;
}

.radio-player.is-loading .radio-player__waves {
  opacity: 0.6;
}

.wave-bar {
  display: block;
  width: 5px;
  height: 12px;
  border-radius: var(--radius-full);
  background: linear-gradient(to top, var(--coral-light), var(--white));
  transform-origin: center bottom;
  animation: wave-idle 1.2s ease-in-out infinite;
}

.wave-bar:nth-child(1)  { animation-delay: 0s;    animation-duration: 0.9s; }
.wave-bar:nth-child(2)  { animation-delay: 0.1s;  animation-duration: 1.1s; }
.wave-bar:nth-child(3)  { animation-delay: 0.2s;  animation-duration: 0.8s; }
.wave-bar:nth-child(4)  { animation-delay: 0.05s; animation-duration: 1.3s; }
.wave-bar:nth-child(5)  { animation-delay: 0.15s; animation-duration: 1s; }
.wave-bar:nth-child(6)  { animation-delay: 0.25s; animation-duration: 0.85s; }
.wave-bar:nth-child(7)  { animation-delay: 0.08s; animation-duration: 1.15s; }
.wave-bar:nth-child(8)  { animation-delay: 0.18s; animation-duration: 0.95s; }
.wave-bar:nth-child(9)  { animation-delay: 0.28s; animation-duration: 1.05s; }
.wave-bar:nth-child(10) { animation-delay: 0.12s; animation-duration: 0.88s; }
.wave-bar:nth-child(11) { animation-delay: 0.22s; animation-duration: 1.2s; }
.wave-bar:nth-child(12) { animation-delay: 0.03s; animation-duration: 1s; }

@keyframes wave-idle {
  0%, 100% { height: 12px; opacity: 0.5; }
  50% { height: 56px; opacity: 1; }
}

.radio-player.is-loading .wave-bar {
  animation: wave-loading 0.6s ease-in-out infinite;
}

@keyframes wave-loading {
  0%, 100% { height: 16px; opacity: 0.4; }
  50% { height: 32px; opacity: 0.8; }
}

.radio-player__freq {
  position: absolute;
  bottom: 1.25rem;
  font-size: 1.125rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  z-index: 1;
}

.radio-player__status {
  margin-top: 0.75rem;
  text-align: center;
  font-size: 0.8125rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.85);
}

.radio-player.is-playing .radio-player__status {
  color: var(--coral-light);
}

.hero__content {
  color: var(--white);
}

.hero__badge {
  display: inline-block;
  padding: 0.35rem 0.875rem;
  background: rgba(255, 255, 255, 0.15);
  border: 1px solid rgba(255, 255, 255, 0.25);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  margin-bottom: 1rem;
  backdrop-filter: blur(4px);
}

.hero__title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  text-shadow: 0 2px 12px rgba(10, 22, 40, 0.3);
}

.hero__favorites {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 1.125rem;
  font-weight: 600;
  color: var(--coral-light);
  margin-bottom: 1.25rem;
}

.hero__favorites-icon {
  font-size: 1.25rem;
  animation: pulse-heart 2s ease-in-out infinite;
}

@keyframes pulse-heart {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.15); }
}

.hero__desc {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.9);
  max-width: 520px;
  margin-bottom: 2rem;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  align-items: center;
}

.hero__feedback {
  min-height: 1.5rem;
  margin-top: 0.75rem;
  font-size: 0.875rem;
  color: var(--coral-light);
  font-weight: 500;
}

/* ===== Buttons ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: var(--radius-full);
  font-family: inherit;
  font-size: 0.9375rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}

.btn:focus-visible {
  outline: 3px solid var(--coral-light);
  outline-offset: 3px;
}

.btn--primary {
  padding: 1rem 2rem;
  font-size: 1.0625rem;
  background: var(--white);
  color: var(--crimson-dark);
  box-shadow: var(--shadow-md);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn--primary.is-playing {
  background: var(--navy);
  color: var(--white);
}

.btn--primary.is-playing .btn__icon--play {
  display: none;
}

.btn--primary.is-playing .btn__icon--pause {
  display: inline-flex !important;
}

.btn--secondary {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(4px);
}

.btn--secondary:hover {
  background: rgba(255, 255, 255, 0.22);
  transform: translateY(-1px);
}

a.btn {
  text-decoration: none;
  color: var(--white);
}

a.btn:hover,
a.btn:focus-visible {
  color: var(--white);
  outline: 3px solid var(--coral-light);
  outline-offset: 3px;
}

.btn--facebook:hover {
  background: rgba(24, 119, 242, 0.35);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn--whatsapp:hover {
  background: rgba(37, 211, 102, 0.35);
  border-color: rgba(255, 255, 255, 0.45);
}

.btn--secondary.is-favorited {
  background: rgba(255, 182, 193, 0.25);
  border-color: var(--coral-light);
  color: var(--coral-light);
}

.btn--secondary.is-favorited .btn__heart {
  color: var(--coral);
}

.btn__heart {
  font-size: 1.125rem;
  line-height: 1;
}

/* ===== Info Section ===== */
.info {
  padding: 3rem 0;
  margin-top: -2rem;
  position: relative;
  z-index: 2;
}

.info__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
}

.info__card {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.5rem;
  background: var(--white);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  transition: transform var(--transition), box-shadow var(--transition);
}

.info__card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.info__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, rgba(196, 30, 58, 0.1), rgba(255, 107, 107, 0.15));
  border-radius: var(--radius-sm);
  color: var(--crimson);
}

.info__label {
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--gray-500);
  margin-bottom: 0.25rem;
}

.info__value {
  font-size: 1rem;
  font-weight: 600;
  color: var(--navy);
}

.info__value a {
  color: var(--crimson);
  word-break: break-all;
}

.info__value a:hover,
.info__value a:focus-visible {
  color: var(--coral);
}

/* ===== About Section ===== */
.about {
  padding: 4rem 0 5rem;
  background: var(--white);
}

.about__inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 3rem;
  align-items: start;
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 800;
  color: var(--navy);
  margin-bottom: 1.25rem;
  position: relative;
  padding-bottom: 0.75rem;
}

.section-title::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 48px;
  height: 4px;
  background: var(--gradient-btn);
  border-radius: var(--radius-full);
}

.about__description {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--gray-800);
}

.about__genres-title {
  font-size: 1rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 1rem;
}

.tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  list-style: none;
}

.tag {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: linear-gradient(135deg, rgba(196, 30, 58, 0.08), rgba(255, 107, 107, 0.12));
  color: var(--crimson-dark);
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--radius-full);
  border: 1px solid rgba(196, 30, 58, 0.15);
  transition: transform var(--transition), background var(--transition);
}

.tag:hover {
  transform: translateY(-2px);
  background: linear-gradient(135deg, rgba(196, 30, 58, 0.15), rgba(255, 107, 107, 0.2));
}

/* ===== Footer ===== */
.footer {
  background: var(--navy);
  color: rgba(255, 255, 255, 0.7);
  padding: 1.75rem 0;
  text-align: center;
  font-size: 0.875rem;
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1rem;
}

.footer__inner p {
  margin: 0;
}

.footer__social {
  display: flex;
  gap: 0.75rem;
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.1);
  color: var(--white);
  border: 1px solid rgba(255, 255, 255, 0.2);
  transition: background var(--transition), transform var(--transition), color var(--transition);
}

.social-link:hover,
.social-link:focus-visible {
  color: var(--white);
  transform: translateY(-2px);
  outline: 2px solid var(--coral-light);
  outline-offset: 2px;
}

.social-link--facebook:hover,
.social-link--facebook:focus-visible {
  background: #1877F2;
  border-color: #1877F2;
}

.social-link--whatsapp:hover,
.social-link--whatsapp:focus-visible {
  background: #25D366;
  border-color: #25D366;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 2rem;
  }

  .hero__desc {
    margin-inline: auto;
  }

  .hero__actions {
    justify-content: center;
  }

  .info__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .about__inner {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 900px) {
  .nav__brand {
    margin-bottom: -2rem;
  }

  .nav__logo {
    height: clamp(48px, 10vw, 72px);
  }

  .nav__links {
    gap: 1rem;
  }

  .nav__links a {
    font-size: 0.9375rem;
  }

  .hero {
    padding-top: 7rem;
  }
}

@media (max-width: 600px) {
  .nav {
    padding: 0.625rem 1rem 0.375rem;
    gap: 0.375rem 0.75rem;
  }

  .nav__brand {
    margin-bottom: -1.5rem;
  }

  .nav__logo {
    height: clamp(40px, 14vw, 56px);
  }

  .nav__links {
    gap: 0.625rem;
    flex-wrap: wrap;
  }

  .nav__links a {
    font-size: 0.8125rem;
    letter-spacing: 0.04em;
  }

  .hero {
    padding: 6.5rem 0 3rem;
    min-height: auto;
  }

  .hero__actions {
    flex-direction: column;
    width: 100%;
  }

  .btn {
    width: 100%;
  }

  .info__grid {
    grid-template-columns: 1fr;
  }

  .info {
    margin-top: 0;
    padding-top: 2rem;
  }
}