/* ============================================================
   NALU GLOBAL SRL — CSS
   ============================================================ */

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

:root {
  --color-black:      #000000;
  --color-white:      #ffffff;
  --color-gray-light: #111111;
  --color-gray:       #C0C0C0;
  --color-gray-mid:   #C0C0C0;
  --color-gray-dark:  #000000;
  --color-silver:     #C0C0C0;
  --color-blue:       #0A3D91;
  --color-accent:     #0A3D91;
  --font-heading:     'Cinzel', serif;
  --font-body:        'Cormorant Garamond', serif;
  --nav-h:            88px;
  --transition:       0.35s ease;
  --radius:           4px;
  --max-w:            1200px;
}

html {
  scroll-behavior: auto;
}

body {
  font-family: var(--font-body);
  font-size: 18px;
  line-height: 1.75;
  color: var(--color-silver);
  background: var(--color-black);
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
button { cursor: pointer; font-family: var(--font-body); border: none; background: none; }

/* ============================================================
   UTILITIES
   ============================================================ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
}

.section {
  padding: 110px 0;
}

.section-light {
  background: #0a0a0a;
  color: var(--color-silver);
}

.section-servicios {
  position: relative;
  color: var(--color-silver);
  background:
    linear-gradient(to bottom, rgba(0,0,0,0.82) 0%, rgba(0,0,0,0.75) 50%, rgba(0,0,0,0.88) 100%),
    url('../assets/seccionnalu4.jpg') center center / cover no-repeat;
}

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

.section-tag {
  display: inline-block;
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gray-mid);
  margin-bottom: 16px;
}

.section-tag-light {
  color: var(--color-gray);
}

.section h2 {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.01em;
  margin-bottom: 24px;
  background: linear-gradient(135deg, #ffffff 30%, #4a8fe7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-title-light {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.01em;
  margin-bottom: 16px;
  background: linear-gradient(135deg, #ffffff 30%, #4a8fe7 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-subtitle-light {
  font-size: 1.1rem;
  color: var(--color-gray);
  margin-bottom: 64px;
  font-style: italic;
}

.section-intro {
  font-size: 1.05rem;
  color: var(--color-gray-mid);
  max-width: 640px;
  margin-bottom: 64px;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 16px 36px;
  border-radius: var(--radius);
  transition: var(--transition);
  cursor: pointer;
}

.btn-primary {
  background: var(--color-blue);
  color: var(--color-white);
  border: 2px solid var(--color-blue);
}

.btn-primary:hover {
  background: transparent;
  color: var(--color-blue);
}

.btn-large {
  padding: 20px 48px;
  font-size: 16px;
}

/* ============================================================
   SCROLL REVEAL
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translate3d(0, 24px, 0);
  transition: opacity 0.5s ease, transform 0.5s ease;
  will-change: opacity, transform;
}

.reveal.active {
  opacity: 1;
  transform: translate3d(0, 0, 0);
  will-change: auto;
}

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

/* ============================================================
   NAVBAR
   ============================================================ */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-h);
  transition: background var(--transition), box-shadow var(--transition);
}

.navbar.scrolled {
  background: rgba(10, 10, 10, 0.97);
  box-shadow: 0 1px 0 rgba(255,255,255,0.06);
}

.nav-container {
  width: 100%;
  padding: 0 48px 0 32px;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  display: flex;
  align-items: center;
}

.nav-logo-img {
  height: 280px;
  width: auto;
  display: block;
  object-fit: contain;
}

.nav-links {
  position: fixed;
  top: 0;
  right: 48px;
  height: var(--nav-h);
  display: flex;
  align-items: center;
  gap: 32px;
  z-index: 1001;
}

.nav-link {
  font-family: 'Outfit', sans-serif;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.75);
  transition: color var(--transition);
}

.nav-link:hover,
.nav-link.active {
  color: var(--color-white);
}

.nav-cta {
  font-family: 'Outfit', sans-serif;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-white);
  background: var(--color-blue);
  border: 1.5px solid var(--color-blue);
  padding: 9px 22px;
  border-radius: var(--radius);
  transition: var(--transition);
}

.nav-cta:hover {
  background: transparent;
  color: var(--color-blue);
  border-color: var(--color-blue);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  width: 28px;
  padding: 4px 0;
  position: relative;
  z-index: 1002;
}

.hamburger span {
  display: block;
  height: 2px;
  background: var(--color-white);
  border-radius: 2px;
  transition: var(--transition);
  transform-origin: left center;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translateY(-1px); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translateY(1px); }

.nav-close {
  display: none;
}

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

.hero-bg {
  position: absolute;
  top: -30%;
  left: 0;
  right: 0;
  bottom: -30%;
  background: url('../assets/heronalu.jpg') center center / cover no-repeat;
  will-change: transform;
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to right, rgba(0,0,0,0.75) 45%, rgba(0,0,0,0.25) 100%);
}

.hero-content {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 40px;
  padding-top: var(--nav-h);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-align: left;
}

.hero-eyebrow {
  font-family: 'Cinzel', serif;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 20px;
}

.hero h1 {
  font-family: 'Cinzel', serif;
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: 0.04em;
  color: var(--color-white);
  margin-bottom: 28px;
  max-width: 700px;
}

.hero-sub {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  color: rgba(255,255,255,0.65);
  line-height: 1.7;
  margin-bottom: 44px;
  max-width: 540px;
}

/* Scroll down indicator */
.scroll-down {
  position: absolute;
  bottom: 40px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  z-index: 1;
}

.scroll-dot {
  display: block;
  width: 6px;
  height: 6px;
  background: var(--color-white);
  border-radius: 50%;
  animation: scrollBounce 1.6s ease-in-out infinite;
}

@keyframes scrollBounce {
  0%, 100% { transform: translateY(0); opacity: 1; }
  50% { transform: translateY(12px); opacity: 0.3; }
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about-text p {
  color: var(--color-gray-mid);
  margin-bottom: 20px;
  font-size: 1.02rem;
}

.about-stats {
  display: flex;
  gap: 40px;
  margin-top: 40px;
  padding-top: 40px;
  border-top: 1px solid rgba(192,192,192,0.15);
}

.stat-number {
  display: block;
  font-family: var(--font-heading);
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: var(--color-blue);
  line-height: 1;
}

.stat-label {
  display: block;
  font-size: 12px;
  color: var(--color-gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-top: 6px;
}

.about-visual {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.about-card {
  background: #0d0d0d;
  border-radius: var(--radius);
  padding: 28px 32px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  border-left: 3px solid transparent;
  transition: var(--transition);
}

.about-card:hover {
  border-left-color: var(--color-blue);
}

.about-card-accent {
  background: var(--color-blue);
  color: var(--color-white);
  border-left-color: var(--color-blue);
}

.about-card-accent h3,
.about-card-accent p {
  color: var(--color-white);
}

.about-card-accent p {
  color: rgba(255,255,255,0.75);
}

.about-card-icon {
  font-size: 1.4rem;
  margin-bottom: 4px;
  color: var(--color-blue);
}

.about-card-accent .about-card-icon {
  color: rgba(255,255,255,0.9);
}

.about-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--color-white);
}

.about-card p {
  font-size: 0.9rem;
  color: var(--color-silver);
  line-height: 1.6;
}

/* ============================================================
   DIFERENCIAL
   ============================================================ */
.diferencial-grid {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 72px;
  align-items: stretch;
  margin-top: 40px;
}

.diferencial-img-wrap {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  align-self: stretch;
}

.diferencial-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  position: absolute;
  inset: 0;
}

.diff-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.diff-card-full {
  grid-column: 1 / -1;
}

.diff-card {
  padding: 24px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.diff-card:hover {
  /* no hover effect without cards */
}

.diff-icon {
  font-size: 1.4rem;
  color: var(--color-blue);
  margin-bottom: 12px;
}

.diff-card h3 {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 10px;
  color: var(--color-white);
}

.diff-card p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.55);
  line-height: 1.65;
}

/* ============================================================
   SERVICES
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 24px;
}

.services-grid .service-card {
  grid-column: span 2;
}

.services-grid .service-card-featured:nth-last-child(2) {
  grid-column: 2 / span 2;
}

.services-grid .service-card-featured:nth-last-child(1) {
  grid-column: 4 / span 2;
}

.service-card {
  position: relative;
  background: #0d0d0d;
  border-radius: var(--radius);
  padding: 36px 32px;
  border: 1px solid rgba(192,192,192,0.12);
  transition: transform 0.3s ease, border-color 0.3s ease;
}

.service-card:hover {
  transform: translate3d(0, -4px, 0);
  border-color: var(--color-blue);
}

.service-card:hover .service-icon {
  animation: iconBounce 0.5s ease;
}

.diff-card:hover .diff-icon {
  animation: iconBounce 0.5s ease;
}

@keyframes iconBounce {
  0%   { transform: scale(1); }
  40%  { transform: scale(1.12) rotate(-3deg); }
  70%  { transform: scale(0.97); }
  100% { transform: scale(1); }
}

.service-card-featured {
  background: var(--color-blue);
  color: var(--color-white);
  border-color: var(--color-blue);
}

.service-card-featured h3,
.service-card-featured p {
  color: var(--color-white);
}

.service-card-featured p {
  color: rgba(255,255,255,0.6);
}

.service-card-featured .service-icon {
  color: rgba(255,255,255,0.85);
}

.service-icon {
  font-size: 1.5rem;
  color: var(--color-blue);
  margin-bottom: 20px;
}

.service-card h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 10px;
  letter-spacing: 0.01em;
  color: var(--color-white);
}

.service-card p {
  font-size: 0.9rem;
  color: var(--color-silver);
  line-height: 1.65;
}

.service-badge {
  position: absolute;
  top: 16px;
  right: 16px;
  font-family: var(--font-heading);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-gray);
  border: 1px solid rgba(255,255,255,0.2);
  padding: 4px 8px;
  border-radius: 2px;
}

.services-closing {
  text-align: center;
  font-family: var(--font-heading);
  font-size: clamp(1.1rem, 2vw, 1.5rem);
  font-weight: 600;
  font-style: italic;
  color: var(--color-gray-mid);
  margin-top: 64px;
  letter-spacing: -0.01em;
}

/* ============================================================
   PROCESO GRID
   ============================================================ */
.proceso-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 72px;
  align-items: center;
}

.proceso-content {
  display: flex;
  flex-direction: column;
}

.proceso-img-wrap {
  border-radius: var(--radius);
  overflow: hidden;
  aspect-ratio: 3 / 4;
}

.proceso-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

@media (max-width: 900px) {
  .proceso-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .proceso-img-wrap {
    aspect-ratio: 16 / 9;
  }
}

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 24px;
  margin-top: 40px;
}

.timeline::after {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 100%;
  background: rgba(255,255,255,0.12);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  width: 1px;
  height: 100%;
  background: var(--color-blue);
  transform-origin: top center;
  transform: scaleY(var(--line-progress-scale, 0));
  transition: transform 0.5s ease;
  will-change: transform;
  z-index: 1;
}

.timeline-item {
  display: flex;
  flex-direction: row;
  align-items: flex-start;
  gap: 24px;
  padding-bottom: 36px;
  position: relative;
}

.timeline-item:last-child {
  padding-bottom: 0;
}

.timeline-number {
  font-family: var(--font-heading);
  font-size: 2.2rem;
  font-weight: 800;
  color: rgba(255,255,255,0.12);
  line-height: 1;
  letter-spacing: -0.04em;
  flex-shrink: 0;
  min-width: 48px;
  position: relative;
  transition: color 0.3s ease;
}

/* CSS stagger for timeline items */
.timeline-item:nth-child(1) .timeline-content,
.timeline-item:nth-child(1) .timeline-number { transition-delay: 0s; }
.timeline-item:nth-child(2) .timeline-content,
.timeline-item:nth-child(2) .timeline-number { transition-delay: 0.1s; }
.timeline-item:nth-child(3) .timeline-content,
.timeline-item:nth-child(3) .timeline-number { transition-delay: 0.15s; }
.timeline-item:nth-child(4) .timeline-content,
.timeline-item:nth-child(4) .timeline-number { transition-delay: 0.2s; }

.timeline-item.active .timeline-number {
  color: var(--color-blue);
}

.timeline-item.active .timeline-number::before {
  background: #4a8fe7;
  box-shadow: 0 0 10px rgba(74,143,231,0.7);
}

.timeline-number::before {
  content: '';
  position: absolute;
  left: -32px;
  top: 10px;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-accent);
  border: 2px solid var(--color-black);
}

.timeline-connector {
  display: none;
}

.timeline-content {
  text-align: left;
  padding-top: 4px;
}

.timeline-content h3 {
  font-family: var(--font-heading);
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 8px;
}

.timeline-content p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.5);
  line-height: 1.65;
}

/* ============================================================
   REASONS / POR QUÉ
   ============================================================ */
#porquenos {
  position: relative;
  background:
    linear-gradient(to right, rgba(0,0,0,0.92) 55%, rgba(0,0,0,0.45) 100%),
    url('../assets/seccionnalu.jpg') center center / cover no-repeat;
}

.reasons-list {
  list-style: none;
  max-width: 780px;
  display: flex;
  flex-direction: column;
  gap: 0;
}

.reason-item {
  display: flex;
  align-items: flex-start;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid rgba(192,192,192,0.12);
}

.reason-item:last-child {
  border-bottom: none;
}

.reason-check {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-blue);
  font-size: 0.9rem;
  margin-top: 2px;
}

.reason-item p {
  font-size: 0.97rem;
  color: var(--color-silver);
  line-height: 1.7;
}

.reason-item strong {
  color: var(--color-white);
  font-weight: 700;
}

/* ============================================================
   CTA SECTION
   ============================================================ */
.section-cta {
  text-align: center;
}

.cta-content {
  max-width: 680px;
  margin: 0 auto;
}

.cta-title {
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  color: var(--color-white);
  margin-bottom: 24px;
  line-height: 1.2;
}

.cta-sub {
  font-size: 1.05rem;
  color: rgba(255,255,255,0.55);
  margin-bottom: 44px;
  line-height: 1.7;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--color-black);
  color: var(--color-white);
  padding: 80px 0 0;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1.5fr 1.5fr;
  gap: 48px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
  margin-bottom: 16px;
}

.footer-logo-img {
  height: 80px;
  width: auto;
  object-fit: contain;
}

.footer-brand p {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.45);
  line-height: 1.65;
  margin-bottom: 28px;
  max-width: 260px;
}

.footer-social {
  display: flex;
  gap: 12px;
}

.social-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.6);
  font-size: 1rem;
  transition: var(--transition);
  background: none;
}

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

.footer-nav h4,
.footer-offices h4,
.footer-contact-col h4 {
  font-family: var(--font-heading);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-gray);
  margin-bottom: 20px;
}

.footer-nav ul {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-nav a {
  font-size: 0.9rem;
  color: rgba(255,255,255,0.5);
  transition: color var(--transition);
}

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

.office {
  display: flex;
  gap: 14px;
  margin-bottom: 20px;
  align-items: flex-start;
}

.office i {
  color: var(--color-gray);
  font-size: 0.85rem;
  margin-top: 3px;
  flex-shrink: 0;
}

.office strong {
  display: block;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--color-white);
  margin-bottom: 4px;
}

.office p {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  line-height: 1.5;
}

.footer-contact-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-contact-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  color: rgba(255,255,255,0.6);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 12px 18px;
  transition: var(--transition);
  background: none;
  cursor: pointer;
  text-align: left;
}

.footer-contact-btn:hover {
  background: rgba(255,255,255,0.06);
  color: var(--color-white);
  border-color: rgba(255,255,255,0.25);
}

.footer-bottom {
  padding: 24px 0;
  text-align: center;
}

.footer-bottom p {
  font-size: 12px;
  color: rgba(255,255,255,0.25);
  letter-spacing: 0.05em;
}

/* ============================================================
   FLOATING WHATSAPP
   ============================================================ */
.whatsapp-float {
  position: fixed;
  bottom: 32px;
  right: 32px;
  z-index: 999;
  width: 60px;
  height: 60px;
  background: #25D366;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.7rem;
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.4);
  transition: transform 0.3s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1);
}

.whatsapp-float::before {
  display: none;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 0.7; }
  50% { transform: scale(1.18); opacity: 0; }
}

/* ============================================================
   MODAL WECHAT
   ============================================================ */
.modal-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(6px);
  align-items: center;
  justify-content: center;
}

.modal-overlay.open {
  display: flex;
}

.modal {
  background: var(--color-white);
  border-radius: 8px;
  padding: 48px 40px;
  max-width: 400px;
  width: 90%;
  text-align: center;
  position: relative;
  animation: modalIn 0.3s ease;
}

@keyframes modalIn {
  from { opacity: 0; transform: scale(0.92) translateY(16px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}

.modal-close {
  position: absolute;
  top: 16px;
  right: 20px;
  font-size: 1.5rem;
  color: var(--color-gray);
  line-height: 1;
  transition: color var(--transition);
}

.modal-close:hover {
  color: var(--color-black);
}

.modal-icon {
  font-size: 2.5rem;
  color: #07c160;
  margin-bottom: 16px;
}

.modal h3 {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 12px;
}

.modal p {
  color: var(--color-gray-mid);
  margin-bottom: 16px;
  font-size: 0.95rem;
}

.wechat-qr-grid {
  display: flex;
  justify-content: center;
  gap: 20px;
  margin-bottom: 16px;
  flex-wrap: wrap;
}

.wechat-qr-item {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

.wechat-qr-label {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--color-gray-mid);
}

.wechat-qr {
  display: block;
  max-width: 160px;
  width: 100%;
  border-radius: var(--radius);
}

.modal-note {
  font-size: 0.82rem;
  color: var(--color-gray);
  margin-bottom: 24px;
}

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

.modal .btn-primary:hover {
  background: transparent;
  color: var(--color-black);
}

/* ============================================================
   MOBILE MENU OVERLAY
   ============================================================ */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  /* Nav — fix overflow */
  .nav-logo-img {
    height: 110px;
  }

  .nav-container {
    padding: 0 24px;
  }

  /* === Mobile menu overlay === */
  .nav-links {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: 100%;
    background: #000;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 0;
    /* clip-path hides without moving element outside viewport */
    clip-path: inset(0 0 0 100%);
    visibility: hidden;
    pointer-events: none;
    transition: clip-path 0.4s cubic-bezier(0.77, 0, 0.175, 1),
                visibility 0s linear 0.4s;
    z-index: 1001;
    padding: 0;
  }

  .nav-links.open {
    clip-path: inset(0);
    visibility: visible;
    pointer-events: auto;
    transition: clip-path 0.4s cubic-bezier(0.77, 0, 0.175, 1),
                visibility 0s linear 0s;
  }

  /* Close button inside overlay */
  .nav-close {
    display: flex;
    align-items: center;
    justify-content: center;
    position: absolute;
    top: 24px;
    right: 24px;
    width: 44px;
    height: 44px;
    border-radius: 50%;
    border: 1px solid rgba(255,255,255,0.15);
    color: rgba(255,255,255,0.7);
    font-size: 1.2rem;
    background: none;
    cursor: pointer;
    transition: color var(--transition), border-color var(--transition), background var(--transition);
  }

  .nav-close:hover {
    color: var(--color-white);
    border-color: rgba(255,255,255,0.4);
    background: rgba(255,255,255,0.06);
  }

  /* Individual link items */
  .nav-links > li {
    width: 100%;
    text-align: center;
    border-bottom: 1px solid rgba(255,255,255,0.07);
  }

  .nav-links > li:first-child {
    border-top: 1px solid rgba(255,255,255,0.07);
  }

  .nav-link {
    display: block;
    padding: 22px 24px;
    font-size: 0.8rem;
    font-weight: 600;
    letter-spacing: 0.18em;
    color: rgba(255,255,255,0.65);
    transition: color var(--transition), background var(--transition);
  }

  .nav-link:hover,
  .nav-link.active {
    color: var(--color-white);
    background: rgba(255,255,255,0.04);
  }

  .nav-links > li:last-child {
    border-bottom: none;
    margin-top: 32px;
    width: auto;
  }

  .nav-cta {
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    padding: 14px 40px;
    border-radius: var(--radius);
  }

  /* Sections */
  .container {
    padding: 0 24px;
  }

  .section {
    padding: 80px 0;
  }

  /* Hero */
  .hero-content {
    padding: 0 24px;
    padding-top: var(--nav-h);
  }

  /* About */
  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .about-stats {
    gap: 24px;
  }

  /* Diff */
  .diferencial-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }

  .diferencial-img-wrap {
    position: relative;
    min-height: auto;
    aspect-ratio: 16 / 9;
    align-self: auto;
  }

  .diferencial-img {
    position: relative;
    inset: auto;
    width: 100%;
    height: 100%;
    object-fit: cover;
  }

  /* Services — clean 2-column layout */
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .services-grid .service-card {
    grid-column: span 1;
  }

  .services-grid .service-card-featured:nth-last-child(2),
  .services-grid .service-card-featured:nth-last-child(1) {
    grid-column: span 1;
  }

  /* Background-attachment fix for iOS */
  .section-servicios {
    background-attachment: scroll;
  }

  /* Timeline — ya es vertical, sin overrides necesarios */

  /* Footer */
  .footer-grid {
    grid-template-columns: 1fr 1fr;
    gap: 32px;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }
}

/* ============================================================
   CONTACT FORM SECTION
   ============================================================ */
.contact-section {
  background: var(--color-black);
}

.contact-inner {
  max-width: 720px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 24px;
  align-items: center;
  text-align: center;
}

.contact-card {
  width: 100%;
  background: #111;
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 12px;
  padding: 40px 44px;
  text-align: left;
}

.contact-divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.15);
  margin: 20px 0 28px;
}

.form-label {
  display: block;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 8px;
}

.contact-title {
  font-family: 'Playfair Display', serif;
  font-size: 3rem;
  color: var(--color-white);
  line-height: 1.2;
  margin-bottom: 6px;
}

.contact-whatsapp-alt {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 14px;
  padding-top: 8px;
  border-top: 1px solid rgba(255,255,255,0.1);
}

.contact-or {
  color: rgba(255,255,255,0.5);
  font-size: 0.95rem;
}

.contact-sub {
  color: var(--color-gray);
  font-size: 1rem;
  margin-bottom: 10px;
}

.contact-min {
  color: var(--color-gray);
  font-size: 0.85rem;
  font-style: italic;
  margin-bottom: 28px;
}

.btn-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  background: #25D366;
  color: #fff;
  font-family: 'Outfit', sans-serif;
  font-size: 14px;
  font-weight: 600;
  padding: 14px 24px;
  border-radius: var(--radius);
  text-decoration: none;
  transition: background var(--transition);
}

.btn-whatsapp:hover {
  background: #1ebe5d;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.form-group input,
.form-group textarea {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: var(--radius);
  padding: 14px 18px;
  color: var(--color-white);
  font-family: 'Outfit', sans-serif;
  font-size: 0.95rem;
  outline: none;
  transition: border-color var(--transition);
  width: 100%;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: rgba(255,255,255,0.4);
}

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

.form-group input.input-error,
.form-group textarea.input-error {
  border-color: #ef4444;
}

.form-group textarea {
  resize: vertical;
}

.form-group-check {
  gap: 10px;
}

.check-label {
  color: rgba(255,255,255,0.7);
  font-size: 0.9rem;
}

.check-options {
  display: flex;
  gap: 24px;
}

.check-option {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-white);
  font-size: 0.95rem;
  cursor: pointer;
}

.check-option input[type="radio"] {
  width: 18px;
  height: 18px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.btn-form-submit {
  width: 100%;
  justify-content: center;
  margin-top: 8px;
}

@media (max-width: 600px) {
  .form-row {
    grid-template-columns: 1fr;
  }

  .contact-title {
    font-size: 2.2rem;
  }

  .contact-card {
    padding: 28px 20px;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 2rem;
  }

  .hero-sub {
    font-size: 0.95rem;
    margin-bottom: 32px;
  }

  .btn {
    font-size: 13px;
    padding: 14px 24px;
  }

  .section h2 {
    font-size: 1.6rem;
  }

  .section-title-light {
    font-size: 1.6rem;
  }

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

  .diff-grid .diff-card:last-child {
    grid-column: auto;
  }

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

  .services-grid .service-card,
  .services-grid .service-card-featured:nth-last-child(2),
  .services-grid .service-card-featured:nth-last-child(1) {
    grid-column: span 1;
  }

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

  .about-stats {
    flex-wrap: wrap;
  }

  .whatsapp-float {
    bottom: 20px;
    right: 20px;
    width: 52px;
    height: 52px;
    font-size: 1.5rem;
  }

  .contact-title {
    font-size: 1.8rem;
  }

  .section {
    padding: 60px 0;
  }
}

/* ============================================================
   INTRO SPLASH
   ============================================================ */
.intro-splash {
  position: fixed;
  inset: 0;
  z-index: 9999;
  background: #000;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  animation: splashFadeOut 0.9s ease forwards 3.2s;
}

.intro-splash.hidden {
  display: none;
}

.splash-img {
  max-width: 600px;
  width: 80%;
  opacity: 0;
  animation: splashImgIn 1.1s cubic-bezier(0.22, 1, 0.36, 1) forwards 0.3s;
}

.splash-tagline {
  font-family: var(--font-body);
  font-size: clamp(0.7rem, 2vw, 0.9rem);
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--color-gray);
  text-align: center;
  padding: 0 24px;
  opacity: 0;
  animation: splashTextIn 0.8s ease forwards 1.3s;
}

@keyframes splashImgIn {
  from { opacity: 0; transform: scale(0.88); }
  to   { opacity: 1; transform: scale(1); }
}

@keyframes splashTextIn {
  from { opacity: 0; transform: translateY(10px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes splashFadeOut {
  from { opacity: 1; }
  to   { opacity: 0; pointer-events: none; }
}

/* ============================================================
   SECTION WAVES
   ============================================================ */
.section-wave {
  position: relative;
  margin-top: -1px;
  line-height: 0;
  overflow: hidden;
}

.section-wave svg {
  width: 100%;
  height: 60px;
  display: block;
}

/* ============================================================
   FLOATING LABELS (CONTACT FORM)
   ============================================================ */
.form-group-float {
  position: relative;
}

.form-group-float input,
.form-group-float textarea {
  padding-top: 22px;
  padding-bottom: 10px;
}

.form-group-float .form-label {
  position: absolute;
  top: 50%;
  left: 18px;
  transform: translateY(-50%);
  font-size: 0.95rem;
  color: rgba(255,255,255,0.4);
  text-transform: none;
  letter-spacing: normal;
  font-weight: 400;
  pointer-events: none;
  transition: all 0.25s ease;
  margin-bottom: 0;
}

.form-group-float textarea ~ .form-label {
  top: 18px;
  transform: none;
}

.form-group-float input:focus + .form-label,
.form-group-float input:not(:placeholder-shown) + .form-label,
.form-group-float textarea:focus + .form-label,
.form-group-float textarea:not(:placeholder-shown) + .form-label {
  top: 8px;
  transform: translateY(0);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
}

.form-group-float textarea:focus + .form-label,
.form-group-float textarea:not(:placeholder-shown) + .form-label {
  top: 6px;
}

/* ============================================================
   PREFERS REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    transition: none;
    opacity: 1;
    transform: none;
  }

  .timeline::before {
    transition: none;
  }

  .service-card:hover .service-icon,
  .diff-card:hover .diff-icon {
    animation: none;
  }

  .hero-bg {
    will-change: auto;
  }
}