/* ============================================
   DUBYDUB STUDIO — Main Stylesheet
   ============================================ */

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

:root {
  --bg: #0a0a0a;
  --bg-2: #111111;
  --bg-3: #181818;
  --surface: #1c1c1c;
  --border: rgba(255,255,255,0.08);
  --accent: #0EA5A8;
  --accent-dim: rgba(14,165,168,0.12);
  --text: #f0ece4;
  --text-muted: #888;
  --text-dim: #555;
  --white: #ffffff;
  --font-body: 'Inter', system-ui, sans-serif;
  --font-display: 'Syne', system-ui, sans-serif;
  --font-hero: 'DM Serif Display', Georgia, serif;
  --radius: 8px;
  --radius-lg: 16px;
  --transition: 0.25s ease;
  --max-w: 1200px;
  --nav-h: 80px;
}

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

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }
ul { list-style: none; }
select, input, textarea {
  font-family: inherit;
  font-size: inherit;
}

/* ---- UTILITIES ---- */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.section-eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 12px;
}

.section-header {
  margin-bottom: 56px;
}

.section-title {
  font-family: var(--font-hero);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.15;
  color: var(--white);
  overflow: visible;
  padding-bottom: 0.06em;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.02em;
  transition: all var(--transition);
  white-space: nowrap;
}

.btn--primary {
  background: var(--accent);
  color: #0a0a0a;
}
.btn--primary:hover {
  background: #12b8bb;
  transform: translateY(-1px);
  box-shadow: 0 8px 24px rgba(14,165,168,0.35);
}

.btn--ghost {
  background: rgba(255,255,255,0.06);
  color: var(--text);
  border: 1px solid var(--border);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.2);
}

.btn--outline {
  background: transparent;
  color: var(--accent);
  border: 1.5px solid var(--accent);
}
.btn--outline:hover {
  background: var(--accent-dim);
}

.btn--full { width: 100%; }

/* ============================================
   NAV
   ============================================ */
.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  height: var(--nav-h);
  background: transparent;
  transition: background var(--transition), backdrop-filter var(--transition);
}

.nav.scrolled {
  background: rgba(10,10,10,0.92);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
}

.nav__logo {
  display: flex;
  align-items: center;
}
.nav__logo-img {
  height: 56px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
}

.nav__links {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav__links li a {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav__links li a:hover { color: var(--white); }

.nav__cta {
  background: var(--accent) !important;
  color: #0a0a0a !important;
  padding: 10px 20px;
  border-radius: var(--radius);
  font-weight: 600 !important;
}
.nav__cta:hover { opacity: 0.9; }

.nav__lang {
  display: flex;
  align-items: center;
  gap: 2px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 3px;
  margin-left: 16px;
}
.lang-btn {
  padding: 4px 10px;
  border-radius: 4px;
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  transition: all var(--transition);
  letter-spacing: 0.08em;
}
.lang-btn:hover { color: var(--white); }
.lang-btn.active { background: var(--accent); color: #0a0a0a; }

.nav__hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav__hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all var(--transition);
}

.nav__mobile {
  display: none;
  position: absolute;
  top: var(--nav-h);
  left: 0;
  right: 0;
  background: rgba(10,10,10,0.97);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border);
  padding: 16px 0;
}
.nav__mobile ul { display: flex; flex-direction: column; }
.nav__mobile ul li a {
  display: block;
  padding: 14px 24px;
  font-size: 1rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color var(--transition);
}
.nav__mobile ul li a:hover { color: var(--white); }
.nav__mobile.open { display: block; }

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

.hero__video-wrap {
  position: absolute;
  top: -30%;
  left: 0;
  right: 0;
  bottom: -30%;
  z-index: 0;
  will-change: transform;
}

.hero__video {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.4;
}

.hero__overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(10,10,10,0.5) 0%,
    rgba(10,10,10,0.3) 50%,
    rgba(10,10,10,0.9) 100%
  );
}

/* Fallback cuando no hay video */
.hero__video-wrap::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 30% 50%, rgba(14,165,168,0.08) 0%, transparent 60%),
              radial-gradient(ellipse at 70% 50%, rgba(0,120,120,0.1) 0%, transparent 60%);
}

.hero__content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 820px;
  padding: 0 24px;
  margin-top: var(--nav-h);
  will-change: transform, opacity;
}

.hero__logo {
  height: 80px;
  width: auto;
  margin: 0 auto 32px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.1s forwards;
  filter: brightness(0) invert(1) drop-shadow(0 2px 24px rgba(14,165,168,0.3));
}

.hero__eyebrow {
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 20px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.3s forwards;
}

.hero__title {
  font-family: 'Cormorant Garamond', Georgia, serif;
  font-size: clamp(2.8rem, 8vw, 7.2rem);
  font-weight: 300;
  font-style: normal;
  line-height: 1.06;
  letter-spacing: -0.01em;
  color: var(--white);
  margin-bottom: 24px;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.5s forwards;
}

.hero__sub {
  font-size: clamp(1rem, 1.8vw, 1.2rem);
  color: rgba(240,236,228,0.7);
  max-width: 580px;
  margin: 0 auto 40px;
  line-height: 1.7;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.7s forwards;
}

.hero__actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fadeUp 0.8s ease 0.9s forwards;
}

.hero__scroll {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  color: var(--text-muted);
  opacity: 0;
  animation: fadeIn 1s ease 1.4s forwards, bounce 2s ease 2.5s infinite;
}
.hero__scroll svg { width: 24px; height: 24px; }

/* ============================================
   DEMOS
   ============================================ */
.demos {
  padding: 120px 0;
  background: var(--bg);
}

.demos__tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.demos__tab {
  padding: 8px 20px;
  border-radius: 100px;
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--text-muted);
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all var(--transition);
}
.demos__tab:hover { color: var(--white); border-color: rgba(255,255,255,0.2); }
.demos__tab.active {
  background: var(--accent);
  color: #0a0a0a;
  border-color: var(--accent);
}

.demos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.demo-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), border-color var(--transition);
}
.demo-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.16);
}
.demo-card.hidden { display: none; }

.demo-card__thumb {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg-3);
  overflow: hidden;
}
.demo-card__thumb iframe,
.demo-card__thumb video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
  background: var(--bg-3);
  object-fit: cover;
}

.demo-card__info {
  padding: 20px;
}
.demo-card__tag {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 8px;
}
.demo-card__info h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 6px;
}
.demo-card__info p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
}

.demo-card__stats {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  letter-spacing: 0.01em;
}

.demos__ver-mas {
  text-align: center;
  margin-top: 48px;
}

/* ============================================
   SERVICIOS
   ============================================ */
.servicios {
  padding: 120px 0;
  background: var(--bg-2);
}

.servicios__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.servicio-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: border-color var(--transition), transform var(--transition);
}
.servicio-card:hover {
  border-color: rgba(14,165,168,0.3);
  transform: translateY(-2px);
}

.servicio-card__icon {
  width: 44px;
  height: 44px;
  margin-bottom: 20px;
  color: var(--accent);
}
.servicio-card__icon svg { width: 100%; height: 100%; }

.servicio-card h3 {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
}

.servicio-card p {
  font-size: 0.9rem;
  color: var(--text-muted);
  line-height: 1.65;
}

.servicio-card--cta {
  background: var(--accent-dim);
  border-color: rgba(14,165,168,0.2);
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 12px;
}
.servicio-card--cta h3 { color: var(--accent); margin-bottom: 0; }
.servicio-card--cta p { margin-bottom: 8px; }

/* ============================================
   DIFERENCIAL
   ============================================ */
.diferencial {
  padding: 120px 0;
  background: var(--bg);
}

.diferencial__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.diferencial__text h2 {
  font-family: var(--font-hero);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 400;
  line-height: 1.1;
  color: var(--white);
  margin-bottom: 20px;
}

.diferencial__text > p {
  font-size: 1.05rem;
  color: rgba(240,236,228,0.7);
  line-height: 1.7;
  margin-bottom: 32px;
}

.diferencial__list {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.diferencial__list li {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.95rem;
  color: var(--text);
}
.diferencial__list li svg {
  width: 18px;
  height: 18px;
  color: var(--accent);
  flex-shrink: 0;
}

.diferencial__img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--surface);
  border: 1px solid var(--border);
}
.diferencial__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: grayscale(20%);
  transition: filter var(--transition);
}
.diferencial__img-wrap:hover img { filter: grayscale(0%); }

/* ============================================
   PROYECTOS
   ============================================ */
.proyectos {
  padding: 120px 0;
  background: var(--bg-2);
}

.proyectos__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.proyecto-card {
  background: var(--surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--border);
  transition: transform var(--transition), border-color var(--transition);
}
.proyecto-card:hover {
  transform: translateY(-4px);
  border-color: rgba(255,255,255,0.16);
}

.proyecto-card__media {
  position: relative;
  aspect-ratio: 16/9;
  background: var(--bg-3);
  overflow: hidden;
}
.proyecto-card__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.4s ease;
}
.proyecto-card:hover .proyecto-card__media img { transform: scale(1.04); }

.proyecto-card__badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: rgba(10,10,10,0.8);
  color: var(--accent);
  font-size: 0.7rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 5px 10px;
  border-radius: 100px;
  border: 1px solid rgba(14,165,168,0.3);
  backdrop-filter: blur(8px);
}

.proyecto-card__body {
  padding: 20px;
}
.proyecto-card__body h3 {
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 8px;
}
.proyecto-card__body p {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.55;
  margin-bottom: 12px;
}
.proyecto-card__meta {
  font-size: 0.75rem;
  color: var(--text-dim);
  font-weight: 500;
}

.proyecto-card__media iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: none;
}

.proyecto-card__ig-stats {
  display: flex;
  align-items: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
  font-size: 0.82rem;
  color: var(--text-muted);
}

.proyecto-card__ig-label {
  display: flex;
  align-items: center;
  gap: 5px;
  font-size: 0.7rem;
  font-weight: 700;
  color: #e1306c;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  flex-shrink: 0;
}
.proyecto-card__ig-label svg {
  width: 13px;
  height: 13px;
  stroke: #e1306c;
  flex-shrink: 0;
}

/* ============================================
   TESTIMONIOS
   ============================================ */
.testimonios {
  padding: 120px 0;
  background: var(--bg-2);
}

.testimonios__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.testimonio-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 28px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  transition: border-color var(--transition), transform var(--transition);
}
.testimonio-card:hover {
  border-color: rgba(14,165,168,0.3);
  transform: translateY(-2px);
}

.testimonio-card__texto {
  font-size: 0.95rem;
  line-height: 1.75;
  color: var(--text);
  font-style: italic;
  flex: 1;
}

.testimonio-card__meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  border-top: 1px solid var(--border);
  padding-top: 16px;
}

.testimonio-card__usuario {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--accent);
}

.testimonio-card__likes {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* ============================================
   NOSOTROS
   ============================================ */
.nosotros {
  padding: 120px 0;
  background: var(--bg);
}

.nosotros__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.nosotros__img-wrap {
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/3;
  background: var(--surface);
  border: 1px solid var(--border);
}
.nosotros__img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.nosotros__text h2 {
  font-family: var(--font-hero);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 400;
  color: var(--white);
  margin-bottom: 20px;
}
.nosotros__text p {
  font-size: 0.95rem;
  color: rgba(240,236,228,0.7);
  line-height: 1.75;
  margin-bottom: 16px;
}
.nosotros__text p:last-of-type { margin-bottom: 32px; }

/* Logo placeholders (sin foto disponible) */
.diferencial__img-wrap--logo,
.nosotros__img-wrap--logo {
  display: flex;
  align-items: center;
  justify-content: center;
}
.diferencial__img-wrap--logo img,
.nosotros__img-wrap--logo img {
  width: 58%;
  height: auto;
  object-fit: contain;
  filter: brightness(0) invert(1) drop-shadow(0 0 40px rgba(14,165,168,0.25));
  opacity: 0.22;
  transition: opacity var(--transition), filter var(--transition);
}
.diferencial__img-wrap--logo:hover img,
.nosotros__img-wrap--logo:hover img {
  opacity: 0.4;
  filter: brightness(0) invert(1) drop-shadow(0 0 40px rgba(14,165,168,0.45));
}

/* ============================================
   CONTACTO
   ============================================ */
.contacto {
  padding: 120px 0;
  background: var(--bg-2);
}

.contacto__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 80px;
  align-items: start;
}

.contacto__text h2 {
  font-family: var(--font-hero);
  font-size: clamp(2rem, 4vw, 2.8rem);
  font-weight: 400;
  color: var(--white);
  margin-bottom: 16px;
  line-height: 1.1;
}
.contacto__text > p {
  font-size: 0.95rem;
  color: rgba(240,236,228,0.6);
  line-height: 1.7;
  margin-bottom: 24px;
}

.contacto__email {
  display: inline-block;
  font-size: 1rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 28px;
  transition: opacity var(--transition);
}
.contacto__email:hover { opacity: 0.75; }

.contacto__social {
  display: flex;
  gap: 16px;
}
.contacto__social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid var(--border);
  color: var(--text-muted);
  transition: all var(--transition);
}
.contacto__social a:hover {
  color: var(--white);
  border-color: rgba(255,255,255,0.3);
}
.contacto__social svg { width: 18px; height: 18px; }

/* FORM */
.contacto__form {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-group label {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 12px 16px;
  color: var(--text);
  font-size: 0.9rem;
  transition: border-color var(--transition);
  outline: none;
  -webkit-appearance: none;
  appearance: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--text-dim);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent);
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: #f87171;
}
.form-error {
  font-size: 0.75rem;
  color: #f87171;
  margin-top: 2px;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='%23888' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  background-size: 16px;
  padding-right: 40px;
  cursor: pointer;
}

.form-group textarea { resize: vertical; min-height: 120px; }

.form-group--check {
  flex-direction: row;
  align-items: center;
  gap: 10px;
}
.form-group--check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  padding: 0;
  flex-shrink: 0;
  cursor: pointer;
  accent-color: var(--accent);
}
.form-group--check label {
  font-size: 0.875rem;
  color: var(--text-muted);
  cursor: pointer;
  letter-spacing: 0;
}

.form-optional {
  font-weight: 400;
  font-size: 0.72rem;
  color: var(--text-dim);
}

.form-social-row {
  display: grid;
  grid-template-columns: 1fr 1.6fr;
  gap: 10px;
}

.form-note {
  text-align: center;
  font-size: 0.8rem;
  color: var(--text-dim);
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  padding: 60px 0;
  background: var(--bg);
  border-top: 1px solid var(--border);
}

.footer__inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}

.footer__logo {
  display: flex;
  align-items: center;
}
.footer__logo-img {
  height: 32px;
  width: auto;
  object-fit: contain;
  filter: brightness(0) invert(1);
  opacity: 0.7;
  transition: opacity var(--transition);
}
.footer__logo:hover .footer__logo-img { opacity: 1; }

.footer__tagline {
  font-size: 0.875rem;
  color: var(--text-dim);
}

.footer__nav {
  display: flex;
  gap: 28px;
  flex-wrap: wrap;
  justify-content: center;
}
.footer__nav a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: color var(--transition);
}
.footer__nav a:hover { color: var(--white); }

.footer__copy {
  font-size: 0.8rem;
  color: var(--text-dim);
  margin-top: 8px;
}

/* ============================================
   ANIMATIONS
   ============================================ */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes bounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(8px); }
}

/* Scroll reveal */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================
   RESPONSIVE
   ============================================ */
@media (max-width: 1024px) {
  .demos__grid,
  .servicios__grid,
  .proyectos__grid,
  .testimonios__grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .diferencial__inner,
  .nosotros__inner,
  .contacto__inner {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .diferencial__visual { order: -1; }
}

@media (max-width: 768px) {
  .nav__links { display: none; }
  .nav__hamburger { display: flex; }
  /* Hide lang switcher from header on mobile — it's in the mobile menu */
  .nav__inner .nav__lang { display: none; }

  .demos__grid,
  .servicios__grid,
  .proyectos__grid,
  .testimonios__grid {
    grid-template-columns: 1fr;
  }
  .form-row { grid-template-columns: 1fr; }
  .form-social-row { grid-template-columns: 1fr; }

  /* Only show top 3 demos on mobile index page */
  #demosGrid .demo-card:nth-child(n+4) { display: none; }

  .demos,
  .servicios,
  .diferencial,
  .proyectos,
  .testimonios,
  .nosotros,
  .contacto {
    padding: 64px 0;
  }

  .section-header { margin-bottom: 36px; }

  /* Give hero content room so scroll arrow doesn't overlap buttons */
  .hero__content { padding-bottom: 80px; }

  /* Hide logo placeholder blocks on mobile — they look like broken elements */
  .diferencial__visual,
  .nosotros__visual { display: none; }

  .contacto__form { padding: 24px; }

  /* Ensure nothing causes horizontal overflow */
  .contacto__inner,
  .diferencial__inner,
  .nosotros__inner { gap: 32px; }
}

@media (max-width: 480px) {
  .hero__actions { flex-direction: column; }
  .hero__actions .btn { width: 100%; }
  .hero__title br { display: none; }
}