/* ================================================================
   SPARTAN CNC — ESTILOS PRINCIPALES
   Paleta: Negro industrial + Amarillo Spartan
================================================================ */

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

:root {
  --bg:       #070707;
  --bg2:      #0d0d0d;
  --bg3:      #141414;
  --bg4:      #1e1e1e;
  --yellow:   #F5C400;
  --yellow2:  #C8A000;
  --yellow3:  #FFDF4D;
  --gradient: linear-gradient(135deg, #F5C400 0%, #C8A000 100%);
  --white:    #ffffff;
  --silver:   #E0E0E0;
  --gray:     #777777;
  --mid:      #444444;
  --border:   rgba(255,255,255,0.06);
  --border2:  rgba(255,255,255,0.11);
  --yborder:  rgba(245, 196, 0, 0.25);
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--white);
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ================================================================
   NAVBAR
================================================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 1.1rem 2.5rem;
  transition: background 0.5s, padding 0.3s, border-color 0.5s;
  border-bottom: 1px solid transparent;
}

.navbar.scrolled {
  background: rgba(7, 7, 7, 0.95);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  padding: 0.85rem 2.5rem;
  border-bottom-color: var(--border);
}

.nav-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

/* Logo: se muestra tal cual — fondo negro se funde con el sitio */
.nav-logo {
  height: 80px;
  object-fit: contain;
  mix-blend-mode: screen;
  transition: opacity 0.2s;
}

.nav-logo:hover { opacity: 0.85; }

.nav-menu {
  list-style: none;
  display: flex;
  align-items: center;
  gap: 2.8rem;
}

.nav-menu a {
  color: rgba(255,255,255,0.65);
  text-decoration: none;
  font-size: 0.84rem;
  letter-spacing: 0.06em;
  font-weight: 500;
  transition: color 0.2s;
  text-transform: uppercase;
}

.nav-menu a:hover { color: var(--white); }

.nav-cta {
  background: var(--gradient) !important;
  color: #000 !important;
  padding: 0.62rem 1.5rem !important;
  border-radius: 5px;
  font-weight: 700 !important;
  letter-spacing: 0.07em !important;
  font-size: 0.8rem !important;
  transition: transform 0.2s, box-shadow 0.2s !important;
  color: #0a0a0a !important;
}

.nav-cta:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 28px rgba(245, 196, 0, 0.4) !important;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--white);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* ================================================================
   HERO SECTION — VIDEO AUTOPLAY
================================================================ */
.hero-section {
  width: 100%;
  background: var(--bg);
}

.hero-video-wrap {
  width: 100%;
  height: 70vh;
  overflow: hidden;
  background: #000;
  display: flex;
  align-items: center;
  justify-content: center;
}

#hero-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.hero-text-bar {
  background: var(--bg);
  text-align: center;
  padding: 3rem 2rem 4rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  border-top: 1px solid var(--yborder);
}

.hero-logo {
  height: clamp(170px, 24vw, 280px);
  object-fit: contain;
  mix-blend-mode: screen;
  margin-bottom: 2rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s ease 0.3s forwards;
}

.hero-title {
  font-family: 'Rajdhani', 'Segoe UI', sans-serif;
  font-size: clamp(4.5rem, 13vw, 11rem);
  font-weight: 700;
  letter-spacing: 0.14em;
  line-height: 1;
  color: var(--white);
  margin-bottom: 0.8rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s ease 0.5s forwards;
  /* Efecto metálico sutil en el texto */
  text-shadow: 0 2px 40px rgba(0,0,0,0.8);
}

.hero-slogan {
  font-size: clamp(0.72rem, 2vw, 0.95rem);
  letter-spacing: 0.38em;
  color: var(--yellow);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 3rem;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeUp 1s ease 0.7s forwards;
}

.hero-cta {
  display: inline-block;
  background: var(--gradient);
  color: #0a0a0a;
  text-decoration: none;
  padding: 1.05rem 3rem;
  border-radius: 5px;
  font-weight: 800;
  letter-spacing: 0.15em;
  font-size: 0.82rem;
  text-transform: uppercase;
  transition: transform 0.25s, box-shadow 0.25s;
  opacity: 0;
  animation: fadeUp 1s ease 0.9s forwards;
}

.hero-cta:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(245, 196, 0, 0.45);
}

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

/* ================================================================
   SEPARADOR DE SECCIÓN
================================================================ */
.section-divider {
  width: 100%;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

/* ================================================================
   UTILIDADES
================================================================ */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-tag {
  font-size: 0.68rem;
  letter-spacing: 0.38em;
  color: var(--yellow);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1.1rem;
  display: block;
}

.section-header {
  text-align: center;
  margin-bottom: 5rem;
}

.section-header > p:not(.section-tag) {
  color: var(--gray);
  font-size: 1.05rem;
  margin-top: 1rem;
  line-height: 1.75;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

h2 {
  font-family: 'Rajdhani', 'Segoe UI', sans-serif;
  font-size: clamp(2.4rem, 5.5vw, 4rem);
  font-weight: 700;
  line-height: 1.1;
  letter-spacing: 0.02em;
}

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

/* ================================================================
   INTRO
================================================================ */
.intro {
  padding: 10rem 2rem;
  background: var(--bg);
  position: relative;
}

.intro::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

.intro-content {
  text-align: center;
  max-width: 700px;
  margin: 0 auto 5rem;
}

.intro-content p {
  color: var(--gray);
  font-size: 1.1rem;
  line-height: 1.9;
  margin-top: 1.6rem;
}

.intro-stats {
  display: flex;
  align-items: stretch;
  justify-content: center;
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 12px;
  overflow: hidden;
  max-width: 720px;
  margin: 0 auto;
}

.stat {
  flex: 1;
  text-align: center;
  padding: 3rem 2rem;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  position: relative;
}

.stat::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s;
}

.stat:hover::after { opacity: 1; }

.stat-num {
  font-family: 'Rajdhani', sans-serif;
  font-size: 3.2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
}

.stat-unit {
  font-size: 1rem;
  color: var(--gray);
  font-weight: 500;
  letter-spacing: 0.05em;
}

.stat-label {
  font-size: 0.7rem;
  letter-spacing: 0.14em;
  color: var(--mid);
  text-transform: uppercase;
  margin-top: 0.3rem;
  font-weight: 600;
}

.stat-divider {
  width: 1px;
  background: var(--border2);
  flex-shrink: 0;
  align-self: stretch;
}

/* ================================================================
   ESPECIFICACIONES
================================================================ */
.specs {
  padding: 10rem 2rem;
  background: var(--bg2);
  position: relative;
}

.specs::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

.specs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
}

.spec-card {
  background: var(--bg3);
  padding: 3rem 2.5rem;
  transition: background 0.35s;
  position: relative;
}

.spec-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.35s;
}

.spec-card:hover {
  background: var(--bg4);
}

.spec-card:hover::after {
  opacity: 1;
}

.spec-icon-wrap {
  color: var(--yellow);
  margin-bottom: 1.5rem;
  opacity: 0.7;
}

.spec-card h3 {
  font-size: 0.68rem;
  letter-spacing: 0.2em;
  color: var(--gray);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 0.7rem;
}

.spec-value {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.95rem;
  font-weight: 700;
  color: var(--white);
  line-height: 1.15;
  margin-bottom: 0.4rem;
}

.spec-note {
  font-size: 0.8rem;
  color: var(--mid);
}

/* ================================================================
   CARACTERÍSTICAS
================================================================ */
.features {
  padding: 10rem 2rem;
  background: var(--bg);
  position: relative;
}

.features::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg2);
  border-radius: 12px;
  padding: 3rem 2.8rem;
  border: 1px solid var(--border);
  position: relative;
  transition: border-color 0.35s, transform 0.35s;
  overflow: hidden;
}

.feature-card::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 3px;
  background: var(--gradient);
}

.feature-card:hover {
  border-color: var(--yborder);
  transform: translateX(6px);
}

.feature-num {
  font-family: 'Rajdhani', sans-serif;
  font-size: 5rem;
  font-weight: 700;
  color: rgba(245, 196, 0, 0.55);
  line-height: 1;
  margin-bottom: 1.2rem;
  transition: color 0.3s;
  letter-spacing: -0.02em;
}

.feature-card:hover .feature-num {
  color: rgba(245, 196, 0, 0.8);
}

.feature-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 0.9rem;
  color: var(--white);
  letter-spacing: 0.01em;
}

.feature-card p {
  color: var(--gray);
  line-height: 1.8;
  font-size: 0.95rem;
}

/* ================================================================
   GARANTÍA
================================================================ */
.warranty {
  padding: 10rem 2rem;
  background: var(--bg2);
  position: relative;
}

.warranty::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

.warranty-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 6rem;
  align-items: center;
  max-width: 1100px;
  margin: 0 auto;
}

.warranty-text p {
  color: var(--gray);
  margin-top: 1.5rem;
  line-height: 1.8;
  font-size: 1rem;
}

.warranty-cards {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.warranty-card {
  background: var(--bg3);
  border: 1px solid var(--border2);
  border-radius: 12px;
  padding: 2.8rem 2.5rem;
  display: flex;
  align-items: center;
  gap: 2rem;
  transition: border-color 0.3s, transform 0.3s;
}

.warranty-card:hover {
  border-color: var(--yborder);
  transform: translateX(6px);
}

.warranty-badge {
  font-family: 'Rajdhani', sans-serif;
  font-size: 3.2rem;
  font-weight: 700;
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  white-space: nowrap;
  flex-shrink: 0;
  line-height: 1;
}

.warranty-badge.secondary {
  background: linear-gradient(135deg, #c8c8c8, #888888);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.warranty-card p {
  color: var(--gray);
  font-size: 0.92rem;
  line-height: 1.55;
}

/* ================================================================
   MATERIALES
================================================================ */
.materials {
  padding: 10rem 2rem;
  background: var(--bg);
  position: relative;
}

.materials::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

.materials-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  max-width: 1100px;
  margin: 0 auto;
}

.material-card {
  background: var(--bg2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2.8rem 2rem;
  transition: border-color 0.3s, transform 0.3s;
  position: relative;
  overflow: hidden;
}

.material-card:hover {
  border-color: var(--yborder);
  transform: translateY(-5px);
}

.material-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
}

.material-card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 0.8rem;
  margin-top: 0.3rem;
  letter-spacing: 0.01em;
}

.material-card p {
  color: var(--gray);
  font-size: 0.87rem;
  line-height: 1.65;
}

/* ================================================================
   GALERÍA
================================================================ */
.gallery {
  padding: 10rem 0;
  background: var(--bg2);
  position: relative;
}

.gallery::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

.gallery .container {
  margin-bottom: 3.5rem;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  grid-template-rows: repeat(4, 220px);
  gap: 8px;
  padding: 0 8px;
}

.gallery-item {
  overflow: hidden;
  border-radius: 8px;
  background: var(--bg3);
  position: relative;
  cursor: pointer;
}

/* Bento layout */
.gi-1 { grid-column: 1 / 3; grid-row: 1 / 3; }
.gi-2 { grid-column: 3;     grid-row: 1;     }
.gi-3 { grid-column: 4;     grid-row: 1;     }
.gi-4 { grid-column: 3;     grid-row: 2;     }
.gi-5 { grid-column: 4;     grid-row: 2;     }
.gi-6 { grid-column: 1;     grid-row: 3 / 5; }
.gi-7 { grid-column: 2;     grid-row: 3 / 5; }
.gi-8 { grid-column: 3 / 5; grid-row: 3 / 5; }

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
              filter 0.5s;
  filter: brightness(0.75) saturate(0.8);
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(245,196,0,0.08), transparent);
  opacity: 0;
  transition: opacity 0.4s;
  border: 1px solid rgba(245,196,0,0);
  border-radius: 8px;
  transition: opacity 0.4s, border-color 0.4s;
}

.gallery-item:hover img {
  transform: scale(1.05);
  filter: brightness(0.9) saturate(1.05);
}

.gallery-item:hover .gallery-overlay {
  opacity: 1;
  border-color: rgba(245,196,0,0.2);
}

/* ================================================================
   WORKSPACE
================================================================ */
.workspace-section {
  padding: 10rem 2rem;
  background: var(--bg2);
  position: relative;
}

.workspace-section::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

.ws-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  margin-bottom: 2rem;
}

.ws-card {
  background: var(--bg3);
  padding: 2.8rem 2.5rem;
  transition: background 0.3s;
  position: relative;
}

.ws-card::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.3s;
}

.ws-card:hover {
  background: var(--bg4);
}

.ws-card:hover::after {
  opacity: 1;
}

.ws-icon {
  width: 56px;
  height: 56px;
  border-radius: 12px;
  background: var(--bg);
  border: 1px solid var(--border2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--yellow);
  margin-bottom: 1.5rem;
  transition: border-color 0.3s, transform 0.3s;
}

.ws-card:hover .ws-icon {
  border-color: var(--yborder);
  transform: scale(1.08);
}

.ws-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
  letter-spacing: 0.01em;
}

.ws-card p {
  color: var(--gray);
  font-size: 0.88rem;
  line-height: 1.75;
}

.ws-cta {
  margin-top: 2rem;
}

.ws-cta-inner {
  background: var(--bg3);
  border: 1px solid var(--yborder);
  border-radius: 14px;
  padding: 3.5rem 4rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  position: relative;
  overflow: hidden;
}

.ws-cta-inner::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
}

.ws-cta-text .section-tag { margin-bottom: 0.5rem; }

.ws-cta-text h3 {
  font-family: 'Rajdhani', sans-serif;
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 0.7rem;
}

.ws-cta-text p {
  color: var(--gray);
  font-size: 0.95rem;
  line-height: 1.7;
  max-width: 520px;
}

.ws-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  background: var(--gradient);
  color: #0a0a0a;
  text-decoration: none;
  padding: 1.1rem 2.5rem;
  border-radius: 8px;
  font-weight: 800;
  letter-spacing: 0.08em;
  font-size: 0.88rem;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
  transition: transform 0.25s, box-shadow 0.25s;
}

.ws-btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 44px rgba(245, 196, 0, 0.4);
}

/* ================================================================
   CONTACTO
================================================================ */
.contact {
  padding: 10rem 2rem;
  background: var(--bg);
  position: relative;
}

.contact::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(to right, transparent, var(--yborder), transparent);
}

.contact-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-top: 3.5rem;
}

.contact-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  padding: 4rem 2rem;
  border-radius: 12px;
  border: 1px solid var(--border2);
  background: var(--bg2);
  color: var(--white);
  transition: transform 0.35s, border-color 0.35s, box-shadow 0.35s;
  position: relative;
  overflow: hidden;
}

.contact-card::after {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: var(--gradient);
  opacity: 0;
  transition: opacity 0.35s;
}

.contact-card:hover {
  transform: translateY(-8px);
  border-color: var(--yborder);
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}

.contact-card:hover::after {
  opacity: 1;
}

.contact-icon {
  width: 76px;
  height: 76px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.8rem;
  background: var(--bg3);
  border: 1px solid var(--border2);
  transition: transform 0.3s, border-color 0.3s;
}

.contact-card:hover .contact-icon {
  transform: scale(1.08);
  border-color: rgba(245,196,0,0.2);
}

.wa-icon    { color: #25d366; }
.phone-icon { color: var(--yellow); }
.mail-icon  { color: #5BA4D4; }

.contact-card h3 {
  font-size: 0.68rem;
  letter-spacing: 0.22em;
  color: var(--gray);
  text-transform: uppercase;
  font-weight: 600;
  margin-bottom: 0.6rem;
}

.contact-value {
  font-family: 'Rajdhani', sans-serif;
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 1.3rem;
  word-break: break-all;
  letter-spacing: 0.02em;
}

.contact-action {
  font-size: 0.76rem;
  color: var(--yellow);
  letter-spacing: 0.1em;
  font-weight: 600;
  text-transform: uppercase;
}

.location {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  margin-top: 3.5rem;
  color: var(--mid);
  font-size: 0.88rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.location svg { color: var(--yellow); opacity: 0.7; }

/* ================================================================
   FOOTER
================================================================ */
.footer {
  background: #030303;
  padding: 5rem 2rem;
  text-align: center;
  border-top: 1px solid var(--border);
}

.footer-logo {
  height: 56px;
  object-fit: contain;
  mix-blend-mode: screen;
  opacity: 0.55;
  margin-bottom: 1.8rem;
  display: block;
  margin-left: auto;
  margin-right: auto;
  transition: opacity 0.3s;
}

.footer-logo:hover { opacity: 0.8; }

.footer-slogan {
  font-size: 0.67rem;
  letter-spacing: 0.42em;
  color: var(--yellow);
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 1.2rem;
  opacity: 0.8;
}

.footer-copy {
  color: var(--mid);
  font-size: 0.8rem;
  margin-bottom: 0.4rem;
}

.footer-contact {
  color: var(--mid);
  font-size: 0.8rem;
  opacity: 0.6;
}

/* ================================================================
   WHATSAPP FLOTANTE
================================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  z-index: 999;
  width: 58px;
  height: 58px;
  background: #25d366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 32px rgba(37, 211, 102, 0.35);
  transition: transform 0.25s, box-shadow 0.25s;
  animation: popIn 0.6s cubic-bezier(0.16, 1, 0.3, 1) 2s both;
}

.whatsapp-float:hover {
  transform: scale(1.12) translateY(-3px);
  box-shadow: 0 16px 44px rgba(37, 211, 102, 0.5);
}

@keyframes popIn {
  from { opacity: 0; transform: scale(0.4); }
  to   { opacity: 1; transform: scale(1); }
}

/* ================================================================
   REVEAL ANIMATIONS
================================================================ */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 1s cubic-bezier(0.16, 1, 0.3, 1),
              transform 1s cubic-bezier(0.16, 1, 0.3, 1);
}

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

/* ================================================================
   RESPONSIVE — TABLET (1024px)
================================================================ */
@media (max-width: 1024px) {
  .specs-grid      { grid-template-columns: repeat(2, 1fr); }
  .materials-grid  { grid-template-columns: repeat(2, 1fr); }
  .ws-grid         { grid-template-columns: repeat(2, 1fr); }

  .contact-cards {
    grid-template-columns: 1fr;
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
  }

  .ws-cta-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 2rem;
    padding: 2.5rem;
  }
}

/* ================================================================
   RESPONSIVE — MOBILE GRANDE (900px)
================================================================ */
@media (max-width: 900px) {
  .features-grid { grid-template-columns: 1fr; }
  .warranty-inner { grid-template-columns: 1fr; gap: 3rem; }

  .gallery-grid {
    grid-template-columns: repeat(2, 1fr);
    grid-template-rows: auto;
    grid-auto-rows: 200px;
    padding: 0 4px;
    gap: 6px;
  }

  .gi-1 { grid-column: 1 / 3; grid-row: span 2; }
  .gi-2, .gi-3, .gi-4, .gi-5, .gi-7, .gi-8 { grid-column: auto; grid-row: auto; }
  .gi-6 { grid-column: 1 / 3; grid-row: span 2; }
}

/* ================================================================
   RESPONSIVE — MÓVIL (768px)
================================================================ */
@media (max-width: 768px) {

  /* NAVBAR */
  .navbar { padding: 1rem 1.2rem; }
  .navbar.scrolled { padding: 0.8rem 1.2rem; }
  .nav-logo { height: 60px; }
  .nav-toggle { display: flex; }

  .nav-menu {
    position: fixed;
    top: 0; right: 0;
    width: 100vw;
    height: 100vh;
    background: rgba(7,7,7,0.98);
    backdrop-filter: blur(24px);
    -webkit-backdrop-filter: blur(24px);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0;
    transform: translateX(110%);
    transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1);
    padding: 5rem 2rem 3rem;
    border-left: none;
    list-style: none;
  }

  .nav-menu.open { transform: translateX(0); }

  .nav-menu li { width: 100%; text-align: center; }

  .nav-menu a {
    font-size: 1.3rem;
    letter-spacing: 0.12em;
    display: block;
    padding: 1rem 0;
    border-bottom: 1px solid var(--border);
    color: var(--silver);
  }

  .nav-menu li:last-child a { border-bottom: none; }

  .nav-cta {
    background: var(--gradient) !important;
    color: #000 !important;
    border-radius: 8px !important;
    margin-top: 1.5rem;
    padding: 1rem 2rem !important;
  }

  /* Hamburger → X cuando está abierto */
  .nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
  .nav-toggle.open span:nth-child(2) { opacity: 0; }
  .nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

  /* VIDEO HERO */
  .hero-video-wrap { height: auto; }
  #hero-video      { width: 100%; height: auto; object-fit: fill; }
  .hero-text-bar   { padding: 2rem 1.5rem 3rem; }

  .hero-logo   { height: 120px; }
  .hero-slogan { letter-spacing: 0.2em; margin-bottom: 2rem; }
  .hero-cta    { padding: 0.95rem 2.2rem; font-size: 0.8rem; }

  /* SECCIONES — reducir padding vertical */
  .intro, .specs, .features, .warranty,
  .materials, .gallery, .workspace-section,
  .contact { padding-top: 5rem; padding-bottom: 5rem; }

  .gallery { padding-left: 0; padding-right: 0; }

  /* INTRO STATS */
  .intro-stats {
    flex-direction: column;
    border-radius: 12px;
  }

  .stat { padding: 2rem 1.5rem; }
  .stat-divider { width: 50%; height: 1px; }
  .stat-num { font-size: 2.6rem; }

  /* SECTION HEADER */
  .section-header { margin-bottom: 3rem; }

  /* SPECS */
  .specs-grid { grid-template-columns: 1fr; }
  .spec-card  { padding: 2rem 1.8rem; }

  /* FEATURES */
  .feature-card { padding: 2.2rem 2rem; }
  .feature-num  { font-size: 3.5rem; }

  /* GARANTÍA */
  .warranty-card {
    flex-direction: column;
    text-align: center;
    padding: 2rem 1.5rem;
    gap: 0.8rem;
  }

  .warranty-badge { font-size: 2.5rem; }

  /* MATERIALES */
  .materials-grid { grid-template-columns: 1fr; gap: 1rem; }
  .material-card  { padding: 2rem 1.8rem; }

  /* WORKSPACE */
  .ws-grid { grid-template-columns: 1fr; }
  .ws-card { padding: 2rem 1.8rem; }
  .ws-cta-inner { padding: 2rem 1.5rem; }
  .ws-cta-text h3 { font-size: 1.6rem; }
  .ws-btn { width: 100%; justify-content: center; padding: 1rem; }

  /* CONTACTO */
  .contact-cards {
    grid-template-columns: 1fr;
    max-width: 100%;
  }

  .contact-card { padding: 2.5rem 1.5rem; }

  /* FOOTER */
  .footer { padding: 3.5rem 1.5rem; }

  /* WHATSAPP FLOTANTE */
  .whatsapp-float {
    width: 52px;
    height: 52px;
    bottom: 1.2rem;
    right: 1.2rem;
  }
}

/* ================================================================
   RESPONSIVE — MÓVIL PEQUEÑO (480px)
================================================================ */
@media (max-width: 480px) {
  .container { padding: 0 1.2rem; }

  /* Hero */
  .hero-logo   { height: 100px; }
  .hero-slogan { font-size: 0.65rem; letter-spacing: 0.18em; }

  /* Gallery: columna única */
  .gallery-grid {
    grid-template-columns: 1fr;
    grid-auto-rows: 240px;
  }

  .gi-1, .gi-2, .gi-3, .gi-4,
  .gi-5, .gi-6, .gi-7, .gi-8 {
    grid-column: 1;
    grid-row: auto;
  }

  /* Stats */
  .stat-num { font-size: 2.2rem; }

  /* Specs */
  .spec-value { font-size: 1.6rem; }

  /* Garantía */
  .warranty-badge { font-size: 2.2rem; }

  /* Footer slogan */
  .footer-slogan { letter-spacing: 0.25em; font-size: 0.62rem; }
}

/* ================================================================
   FIX iOS: evitar zoom en inputs
================================================================ */
@media (max-width: 768px) {
  input, select, textarea { font-size: 16px !important; }
}