/* ===================================
   Áncash Sinfónico - Web de Expectativa
   Un evento magistral
   =================================== */

@import url("https://fonts.googleapis.com/css2?family=Playfair+Display:wght@400;500;600;700;800;900&family=Inter:wght@300;400;500;600;700&display=swap");

:root {
  --color-black: #050505;
  --color-dark: #0a0a0a;
  --color-charcoal: #141414;
  --color-gold: #d4af37;
  --color-gold-light: #f0d875;
  --color-gold-dark: #a68b2a;
  --color-cream: #f5f0e6;
  --color-white: #ffffff;
  --color-gray: #8a8a8a;

  --gradient-gold: linear-gradient(
    135deg,
    var(--color-gold-dark) 0%,
    var(--color-gold) 50%,
    var(--color-gold-light) 100%
  );

  --font-display: "Playfair Display", serif;
  --font-body: "Inter", sans-serif;

  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
  --ease-out-quart: cubic-bezier(0.25, 1, 0.5, 1);
}

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

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

body {
  font-family: var(--font-body);
  background-color: var(--color-black);
  color: var(--color-cream);
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

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

/* ===== NOISE OVERLAY ===== */
.noise-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 9999;
  opacity: 0.03;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)'/%3E%3C/svg%3E");
}

/* ===== HERO SECTION ===== */
.hero {
  position: relative;
  height: 100vh;
  min-height: 700px;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__background {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.hero__image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 30%;
  filter: brightness(0.5) saturate(0.8);
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(5, 5, 5, 0.3) 0%,
    rgba(5, 5, 5, 0.5) 50%,
    rgba(5, 5, 5, 0.9) 100%
  );
  z-index: 2;
}

.hero__vignette {
  position: absolute;
  inset: 0;
  background: radial-gradient(
    ellipse at center,
    transparent 0%,
    transparent 30%,
    rgba(5, 5, 5, 0.6) 100%
  );
  z-index: 3;
}

.hero__particles {
  position: absolute;
  inset: 0;
  z-index: 4;
  background-image: 
    radial-gradient(1px 1px at 20% 30%, rgba(212, 175, 55, 0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 40% 70%, rgba(212, 175, 55, 0.2) 0%, transparent 100%),
    radial-gradient(1px 1px at 60% 20%, rgba(212, 175, 55, 0.3) 0%, transparent 100%),
    radial-gradient(1px 1px at 80% 60%, rgba(212, 175, 55, 0.2) 0%, transparent 100%);
  animation: particlesFloat 20s ease-in-out infinite;
}

@keyframes particlesFloat {
  0%, 100% { opacity: 0.5; }
  50% { opacity: 1; }
}

.hero__content {
  position: relative;
  z-index: 10;
  text-align: center;
  padding: 2rem;
  animation: heroFadeIn 2s var(--ease-out-expo) forwards;
}

@keyframes heroFadeIn {
  from {
    opacity: 0;
    transform: translateY(40px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero__eyebrow {
  font-family: var(--font-body);
  font-size: clamp(0.85rem, 1.5vw, 1rem);
  font-weight: 500;
  letter-spacing: 0.35em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 2rem;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 0.3s forwards;
}

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(3.5rem, 12vw, 10rem);
  font-weight: 900;
  line-height: 0.9;
  margin-bottom: 1rem;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 0.5s forwards;
}

.hero__title-line {
  display: block;
  color: var(--color-white);
}

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

.hero__subtitle {
  font-family: var(--font-display);
  font-size: clamp(1.2rem, 3vw, 2rem);
  font-weight: 400;
  font-style: italic;
  color: var(--color-cream);
  letter-spacing: 0.05em;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 0.7s forwards;
}

.hero__divider {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
  margin: 2.5rem 0;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 0.9s forwards;
}

.hero__divider-line {
  width: clamp(40px, 10vw, 120px);
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    var(--color-gold),
    transparent
  );
}

.hero__divider-icon {
  font-size: 1.5rem;
  animation: floatIcon 4s ease-in-out infinite;
}

@keyframes floatIcon {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-8px); }
}

.hero__cta {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--color-black);
  background: var(--gradient-gold);
  border-radius: 50px;
  transition: all 0.4s var(--ease-out-expo);
  box-shadow: 0 4px 30px rgba(212, 175, 55, 0.3);
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 1.1s forwards;
}

.hero__cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 40px rgba(212, 175, 55, 0.5);
}

.hero__scroll-indicator {
  position: absolute;
  bottom: 3rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 10;
  opacity: 0;
  animation: fadeInUp 1s var(--ease-out-expo) 1.5s forwards;
}

.hero__scroll-line {
  width: 1px;
  height: 60px;
  background: linear-gradient(
    180deg,
    var(--color-gold) 0%,
    transparent 100%
  );
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { 
    opacity: 0.3;
    transform: scaleY(0.5);
    transform-origin: top;
  }
  50% { 
    opacity: 1;
    transform: scaleY(1);
  }
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== CONCEPTO SECTION ===== */
.concepto {
  position: relative;
  padding: clamp(5rem, 15vh, 10rem) 2rem;
  overflow: hidden;
  background: var(--color-black);
}

.concepto__background {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.concepto__gradient {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 20% 50%, rgba(212, 175, 55, 0.03) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 50%, rgba(212, 175, 55, 0.03) 0%, transparent 50%);
}

.concepto__content {
  position: relative;
  z-index: 10;
  max-width: 900px;
  margin: 0 auto;
  text-align: center;
}

.concepto__label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1.5rem;
}

.concepto__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 700;
  line-height: 1.3;
  color: var(--color-white);
  margin-bottom: 2rem;
}

.concepto__divider {
  width: 80px;
  height: 2px;
  background: var(--gradient-gold);
  margin: 0 auto 2.5rem;
}

.concepto__text {
  font-size: clamp(1.1rem, 2vw, 1.4rem);
  font-weight: 300;
  line-height: 1.9;
  color: var(--color-cream);
  margin-bottom: 2.5rem;
  opacity: 0.9;
}

.concepto__quote {
  font-family: var(--font-display);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-style: italic;
  color: var(--color-gold);
  line-height: 1.7;
  padding: 2rem;
  border-left: 2px solid var(--color-gold);
  border-right: 2px solid var(--color-gold);
  max-width: 700px;
  margin: 0 auto;
}

.concepto__ornament {
  position: absolute;
  width: 300px;
  height: 300px;
  border: 1px solid rgba(212, 175, 55, 0.1);
  border-radius: 50%;
  pointer-events: none;
}

.concepto__ornament--left {
  top: 10%;
  left: -150px;
}

.concepto__ornament--right {
  bottom: 10%;
  right: -150px;
}

/* ===== DETALLES SECTION ===== */
.detalles {
  position: relative;
  padding: clamp(5rem, 15vh, 10rem) 2rem;
  overflow: hidden;
}

.detalles__background {
  position: absolute;
  inset: 0;
  z-index: 1;
}

.detalles__bg-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  filter: brightness(0.15) saturate(0.5);
}

.detalles__overlay {
  position: absolute;
  inset: 0;
  background: 
    linear-gradient(180deg, var(--color-black) 0%, rgba(10, 10, 10, 0.8) 50%, var(--color-black) 100%),
    radial-gradient(ellipse at center, transparent 0%, rgba(5, 5, 5, 0.9) 100%);
}

.detalles__content {
  position: relative;
  z-index: 10;
  max-width: 1200px;
  margin: 0 auto;
  text-align: center;
}

.detalles__label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1.5rem;
}

.detalles__title {
  font-family: var(--font-display);
  font-size: clamp(2.5rem, 6vw, 4rem);
  font-weight: 800;
  color: var(--color-white);
  margin-bottom: 2rem;
}

.detalles__divider {
  width: 80px;
  height: 2px;
  background: var(--gradient-gold);
  margin: 0 auto 3rem;
}

.detalles__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 2rem;
}

.detalles__card {
  padding: 2.5rem 2rem;
  background: linear-gradient(
    135deg,
    rgba(20, 20, 20, 0.8) 0%,
    rgba(10, 10, 10, 0.6) 100%
  );
  border: 1px solid rgba(212, 175, 55, 0.15);
  border-radius: 4px;
  transition: all 0.5s var(--ease-out-expo);
}

.detalles__card:hover {
  border-color: rgba(212, 175, 55, 0.4);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.detalles__card-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 1.5rem;
}

.detalles__card-title {
  font-family: var(--font-display);
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--color-gold);
  margin-bottom: 0.75rem;
}

.detalles__card-text {
  font-size: 1rem;
  font-weight: 300;
  color: var(--color-cream);
  line-height: 1.6;
  opacity: 0.85;
}

/* ===== CONTACTO SECTION ===== */
.contacto {
  position: relative;
  padding: clamp(5rem, 15vh, 10rem) 2rem;
  overflow: hidden;
  background: var(--color-black);
}

.contacto__background {
  position: absolute;
  inset: 0;
  background: 
    radial-gradient(ellipse at 50% 0%, rgba(212, 175, 55, 0.05) 0%, transparent 50%),
    var(--color-black);
}

.contacto__content {
  position: relative;
  z-index: 10;
  max-width: 700px;
  margin: 0 auto;
  text-align: center;
}

.contacto__label {
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gold);
  margin-bottom: 1.5rem;
}

.contacto__title {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: 2rem;
}

.contacto__divider {
  width: 80px;
  height: 2px;
  background: var(--gradient-gold);
  margin: 0 auto 2rem;
}

.contacto__text {
  font-size: clamp(1rem, 2vw, 1.2rem);
  font-weight: 300;
  color: var(--color-cream);
  line-height: 1.8;
  margin-bottom: 3rem;
  opacity: 0.85;
}

.contacto__info {
  margin-bottom: 3rem;
}

.contacto__name {
  font-family: var(--font-body);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 0.5rem;
}

.contacto__coordinator {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 1.5rem;
}

.contacto__link {
  display: block;
  font-size: 1rem;
  font-weight: 400;
  color: var(--color-gold);
  text-decoration: none;
  margin-bottom: 0.5rem;
  transition: all 0.3s ease;
}

.contacto__link:hover {
  color: var(--color-gold-light);
}

.contacto__ornament {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1.5rem;
}

.contacto__ornament-line {
  width: 60px;
  height: 1px;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(212, 175, 55, 0.5),
    transparent
  );
}

.contacto__ornament-icon {
  font-size: 1.2rem;
  opacity: 0.7;
}

/* ===== FOOTER ===== */
.footer {
  padding: 3rem 2rem;
  background: var(--color-black);
  border-top: 1px solid rgba(212, 175, 55, 0.1);
}

.footer__content {
  max-width: 600px;
  margin: 0 auto;
  text-align: center;
}

.footer__logo {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.footer__tagline {
  font-family: var(--font-display);
  font-size: 0.9rem;
  font-style: italic;
  color: var(--color-cream);
  opacity: 0.6;
  margin-bottom: 1.5rem;
}

.footer__copy {
  font-size: 0.8rem;
  color: var(--color-gray);
}

/* ===== SCROLL REVEAL ===== */
.reveal {
  opacity: 0;
  transform: translateY(40px);
  transition: all 1s var(--ease-out-expo);
}

.reveal.active {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .hero__title {
    line-height: 0.95;
  }

  .concepto__quote {
    padding: 1.5rem 1rem;
  }

  .detalles__grid {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  .detalles__card {
    padding: 2rem 1.5rem;
  }
}

@media (max-width: 480px) {
  .hero__cta {
    padding: 0.9rem 2rem;
    font-size: 0.8rem;
  }

  .hero__eyebrow {
    letter-spacing: 0.2em;
  }
}