/* ============================================
   AUDIO GALERÍA — Design System & Styles
   Minimalist B&W — SONOS Inspired
   ============================================ */

/* --- Variables --- */
:root {
  --white: #FFFFFF;
  --off-white: #F5F5F5;
  --light-gray: #E8E8E8;
  --gray-300: #D0D0D0;
  --gray-500: #888888;
  --gray-600: #555555;
  --dark: #111111;
  --black: #000000;

  --font-main: "Inter", "Helvetica Neue", Arial, sans-serif;

  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-2xl: 8rem;

  --section-padding: 7rem 0;
  --container-width: 1200px;
  --container-padding: 0 2rem;

  --transition-fast: 0.3s ease;
  --transition-medium: 0.6s ease;
  --transition-slow: 0.8s cubic-bezier(0.16, 1, 0.3, 1);
}

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

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

body {
  font-family: var(--font-main);
  font-weight: 400;
  line-height: 1.7;
  color: var(--black);
  background-color: var(--white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

a {
  text-decoration: none;
  color: inherit;
  transition: opacity var(--transition-fast);
}

a:hover {
  opacity: 0.7;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul, ol {
  list-style: none;
}

button {
  font-family: var(--font-main);
  cursor: pointer;
  border: none;
  background: none;
}

/* --- Utility --- */
.container {
  max-width: var(--container-width);
  margin: 0 auto;
  padding: var(--container-padding);
}

.label {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--gray-500);
  margin-bottom: var(--spacing-sm);
  display: block;
}

.label--light {
  color: var(--gray-300);
}

.section-line {
  width: 60px;
  height: 2px;
  background: var(--black);
  margin-bottom: var(--spacing-md);
}

.section-line--light {
  background: var(--white);
}

.text-center {
  text-align: center;
}

/* --- Typography --- */
h1, h2, h3, h4, h5, h6 {
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.5rem, 5vw, 4.5rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: clamp(1.5rem, 3vw, 2rem); }
h4 { font-size: 1.25rem; }

p {
  color: var(--gray-600);
  max-width: 680px;
}

.text-large {
  font-size: 1.25rem;
  line-height: 1.8;
}

/* ============================================
   NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  padding: 1.5rem 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  transition: background-color var(--transition-fast), padding var(--transition-fast), box-shadow var(--transition-fast);
}

.navbar.scrolled {
  background-color: var(--black);
  padding: 1rem 2rem;
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}

.navbar__logo {
  height: 100px;
  filter: invert(1) brightness(2);
  transition: height var(--transition-fast);
}

.navbar.scrolled .navbar__logo {
  height: 48px;
}

.navbar__links {
  display: flex;
  gap: 2.5rem;
  align-items: center;
}

.navbar__links a {
  color: var(--white);
  font-size: 0.85rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  position: relative;
}

.navbar__links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width var(--transition-fast);
}

.navbar__links a:hover {
  opacity: 1;
}

.navbar__links a:hover::after,
.navbar__links a.active::after {
  width: 100%;
}

.navbar__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 5px;
  cursor: pointer;
  z-index: 1001;
}

.navbar__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--white);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.navbar__hamburger.open span:nth-child(1) {
  transform: rotate(45deg) translate(5px, 5px);
}

.navbar__hamburger.open span:nth-child(2) {
  opacity: 0;
}

.navbar__hamburger.open span:nth-child(3) {
  transform: rotate(-45deg) translate(5px, -5px);
}

/* ============================================
   HERO
   ============================================ */
.hero {
  position: relative;
  height: 100vh;
  min-height: 600px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.55);
  z-index: 1;
}

.hero__video {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  color: var(--white);
  max-width: 800px;
  padding: 0 2rem;
}

.hero__label {
  font-size: 0.8rem;
  font-weight: 500;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-md);
  opacity: 0.8;
}

.hero__content h1 {
  color: var(--white);
  margin-bottom: var(--spacing-sm);
}

.hero__content p {
  color: rgba(255, 255, 255, 0.8);
  font-size: 1.2rem;
  max-width: 600px;
  margin: 0 auto var(--spacing-md);
}

.hero__scroll {
  position: absolute;
  bottom: 2rem;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  color: var(--white);
  font-size: 0.7rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  opacity: 0.6;
  animation: bounceDown 2s infinite;
}

.hero__scroll::after {
  content: '';
  width: 1px;
  height: 40px;
  background: var(--white);
}

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

/* ============================================
   BUTTONS
   ============================================ */
.btn {
  display: inline-block;
  padding: 0.9rem 2.5rem;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  border: 2px solid;
  transition: all var(--transition-fast);
}

.btn--white {
  color: var(--white);
  border-color: var(--white);
}

.btn--white:hover {
  background: var(--white);
  color: var(--black);
  opacity: 1;
}

.btn--black {
  color: var(--black);
  border-color: var(--black);
}

.btn--black:hover {
  background: var(--black);
  color: var(--white);
  opacity: 1;
}

.btn--filled {
  background: var(--black);
  color: var(--white);
  border-color: var(--black);
}

.btn--filled:hover {
  background: var(--dark);
  border-color: var(--dark);
  opacity: 1;
}

/* ============================================
   SECTIONS
   ============================================ */
.section {
  padding: var(--section-padding);
}

.section--offwhite {
  background: var(--off-white);
}

.section--dark {
  background: var(--dark);
  color: var(--white);
}

.section--dark p {
  color: rgba(255, 255, 255, 0.7);
}

.section--dark .section-line {
  background: var(--white);
}

.section__header {
  margin-bottom: var(--spacing-lg);
}

.section__header h2 {
  margin-bottom: var(--spacing-sm);
}

.section__header p {
  font-size: 1.1rem;
}

/* --- Grid Layouts --- */
.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  align-items: center;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

/* --- Split Layout --- */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-lg);
  align-items: center;
}

.split--reverse {
  direction: rtl;
}

.split--reverse > * {
  direction: ltr;
}

.split__image {
  width: 100%;
  height: 450px;
  object-fit: cover;
}

.split__content {
  padding: var(--spacing-md) 0;
}

.split__content h2 {
  margin-bottom: var(--spacing-sm);
}

.split__content p {
  margin-bottom: var(--spacing-sm);
}

/* ============================================
   CARDS
   ============================================ */
.card {
  background: var(--white);
  overflow: hidden;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

.card__image {
  width: 100%;
  height: 280px;
  object-fit: cover;
}

.card__content {
  padding: var(--spacing-md);
}

.card__content h3 {
  margin-bottom: var(--spacing-xs);
}

.card__content p {
  font-size: 0.95rem;
}

/* ============================================
   SERVICE BLOCKS (2-column icons)
   ============================================ */
.service-block {
  display: flex;
  gap: var(--spacing-md);
  align-items: flex-start;
}

.service-block__icon {
  flex-shrink: 0;
  width: 48px;
  height: 48px;
}

.service-block__icon svg {
  width: 100%;
  height: 100%;
  stroke: var(--black);
  fill: none;
  stroke-width: 1.5;
}

.service-block h3 {
  margin-bottom: var(--spacing-xs);
}

/* ============================================
   FEATURES LIST (dark sections)
   ============================================ */
.features-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-md) var(--spacing-lg);
}

.feature-item {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.feature-item__number {
  font-size: 2rem;
  font-weight: 700;
  color: rgba(255, 255, 255, 0.2);
  line-height: 1;
  flex-shrink: 0;
}

.feature-item p {
  font-size: 1rem;
}

/* ============================================
   PROCESS STEPS
   ============================================ */
.process-steps {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.process-step {
  display: flex;
  gap: var(--spacing-sm);
  align-items: flex-start;
}

.process-step__marker {
  flex-shrink: 0;
  width: 32px;
  height: 32px;
  border: 2px solid var(--black);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
}

.section--dark .process-step__marker {
  border-color: var(--white);
  color: var(--white);
}

.process-step h4 {
  margin-bottom: 0.25rem;
}

/* ============================================
   FACEBOOK FEED
   ============================================ */
.fb-feed {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
  margin-top: var(--spacing-lg);
}

.fb-feed__loading {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--gray);
  padding: var(--spacing-lg) 0;
  font-size: 0.95rem;
}

.fb-feed__card {
  background: var(--white);
  border: 1px solid var(--light-gray);
  overflow: hidden;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.fb-feed__card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.1);
}

.fb-feed__img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  background: var(--offwhite);
}

.fb-feed__body {
  padding: 1.25rem;
}

.fb-feed__date {
  font-size: 0.8rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.5rem;
}

.fb-feed__text {
  font-size: 0.95rem;
  line-height: 1.5;
  color: var(--dark);
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.fb-feed__link {
  display: inline-block;
  margin-top: 0.75rem;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--black);
  text-decoration: none;
  border-bottom: 1px solid var(--black);
  transition: opacity 0.2s ease;
}

.fb-feed__link:hover {
  opacity: 0.6;
}

/* ============================================
   SONOS BANNER
   ============================================ */
.sonos-banner {
  background: var(--black);
  padding: var(--spacing-2xl) 0;
  text-align: center;
  overflow: hidden;
}

.sonos-banner__content {
  display: flex;
  flex-direction: column;
  align-items: center;
}

.sonos-banner__label {
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.4);
  margin-bottom: var(--spacing-sm);
}

.sonos-banner__logo {
  width: 280px;
  height: auto;
  margin-bottom: var(--spacing-md);
  filter: brightness(0) invert(1);
}

.sonos-banner__divider {
  width: 40px;
  height: 1px;
  background: rgba(255, 255, 255, 0.25);
  margin-bottom: var(--spacing-md);
}

.sonos-banner__text {
  color: rgba(255, 255, 255, 0.55);
  font-size: 1.1rem;
  line-height: 1.8;
  max-width: 600px;
  margin-bottom: var(--spacing-lg);
}

@media (max-width: 768px) {
  .sonos-banner {
    padding: var(--spacing-xl) 0;
  }

  .sonos-banner__logo {
    width: 200px;
  }

  .sonos-banner__text {
    font-size: 1rem;
  }
}

/* ============================================
   CTA BANNER
   ============================================ */
.cta-banner {
  background: var(--black);
  padding: var(--spacing-xl) 0;
  text-align: center;
}

.cta-banner h2 {
  color: var(--white);
  margin-bottom: var(--spacing-xs);
}

.cta-banner p {
  color: rgba(255, 255, 255, 0.6);
  margin: 0 auto var(--spacing-md);
}

/* ============================================
   CONTACT INFO GRID
   ============================================ */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--spacing-md);
}

.contact-card {
  padding: var(--spacing-lg) var(--spacing-md);
  text-align: center;
  border: 1px solid var(--light-gray);
  transition: box-shadow var(--transition-fast);
}

.contact-card:hover {
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.06);
}

.contact-card__icon {
  width: 40px;
  height: 40px;
  margin: 0 auto var(--spacing-sm);
}

.contact-card__icon svg {
  width: 100%;
  height: 100%;
  stroke: var(--black);
  fill: none;
  stroke-width: 1.5;
}

.contact-card h3 {
  margin-bottom: var(--spacing-xs);
}

.contact-card p {
  margin: 0 auto;
  font-size: 0.95rem;
}

.contact-card a {
  display: block;
  font-weight: 500;
}

/* ============================================
   CONTACT FORM
   ============================================ */
.form {
  max-width: 700px;
  margin: 0 auto;
}

.form__group {
  margin-bottom: var(--spacing-md);
}

.form__label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
  color: var(--black);
}

.form__input,
.form__textarea {
  width: 100%;
  padding: 1rem;
  border: 1px solid var(--gray-300);
  background: var(--white);
  font-family: var(--font-main);
  font-size: 1rem;
  color: var(--black);
  transition: border-color var(--transition-fast);
  outline: none;
}

.form__input:focus,
.form__textarea:focus {
  border-color: var(--black);
}

.form__textarea {
  min-height: 160px;
  resize: vertical;
}

.form__row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

/* ============================================
   MAP
   ============================================ */
.map-container {
  width: 100%;
  height: 400px;
  background: var(--off-white);
  overflow: hidden;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
  filter: grayscale(100%);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: var(--black);
  color: var(--white);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer__grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer__logo {
  height: 100px;
  filter: invert(1) brightness(2);
  margin-bottom: var(--spacing-sm);
}

.footer__about p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  max-width: 300px;
}

.footer__col h4 {
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: var(--spacing-sm);
  color: var(--white);
}

.footer__col a,
.footer__col p {
  display: block;
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.9rem;
  margin-bottom: 0.5rem;
  transition: color var(--transition-fast);
}

.footer__col a:hover {
  color: var(--white);
  opacity: 1;
}

.footer__bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: var(--spacing-md);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.footer__bottom p {
  color: rgba(255, 255, 255, 0.3);
  font-size: 0.8rem;
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity var(--transition-slow), transform var(--transition-slow);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }

/* ============================================
   HERO ANIMATION
   ============================================ */
.hero__content .hero__label,
.hero__content h1,
.hero__content p,
.hero__content .btn {
  opacity: 0;
  transform: translateY(20px);
  animation: heroFadeIn 0.8s ease forwards;
}

.hero__content .hero__label { animation-delay: 0.2s; }
.hero__content h1 { animation-delay: 0.4s; }
.hero__content p { animation-delay: 0.6s; }
.hero__content .btn { animation-delay: 0.8s; }

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

/* ============================================
   RESPONSIVE
   ============================================ */

/* Tablet */
@media (max-width: 1024px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--spacing-md);
  }

  .features-list {
    grid-template-columns: 1fr;
  }
}

/* Mobile */
@media (max-width: 768px) {
  :root {
    --section-padding: 4rem 0;
  }

  .navbar__links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--black);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 2rem;
    transition: right var(--transition-fast);
  }

  .navbar__links.open {
    right: 0;
  }

  .navbar__links a {
    font-size: 1.2rem;
  }

  .navbar__hamburger {
    display: flex;
  }

  .hero {
    min-height: 500px;
  }

  .grid-2,
  .grid-3,
  .split,
  .split--reverse {
    grid-template-columns: 1fr;
  }

  .fb-feed {
    grid-template-columns: 1fr;
  }

  .split--reverse {
    direction: ltr;
  }

  .split__image {
    height: 300px;
  }

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

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

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

  .footer__bottom {
    flex-direction: column;
    gap: var(--spacing-sm);
    text-align: center;
  }

  .cta-banner {
    padding: var(--spacing-lg) 0;
  }
}

/* Small phones */
@media (max-width: 480px) {
  .container {
    padding: 0 1.25rem;
  }

  .navbar {
    padding: 1rem 1.25rem;
  }

  .hero__content {
    padding: 0 1.25rem;
  }
}