/* ============================================================
   SERFRAL — Stylesheet Principal
   Paleta corporativa: teal industrial + verde biomasa + neutros
   ============================================================ */

/* ---- Variables ---- */
:root {
  --c-navy:    #1F4E5F;
  --c-teal:    #2F6B73;
  --c-green:   #5E8C61;
  --c-sage:    #7A9B6A;
  --c-slate:   #5F6B6D;
  --c-sand:    #D9D4C7;
  --c-off:     #F4F5F2;
  --c-dark:    #2E3538;
  --c-white:   #FFFFFF;
  --c-accent:  #5E8C61;

  --font-head: 'Barlow Condensed', sans-serif;
  --font-body: 'DM Sans', sans-serif;

  --max-w: 1200px;
  --radius: 4px;
  --shadow: 0 4px 24px rgba(31,78,95,.10);
  --shadow-deep: 0 12px 48px rgba(31,78,95,.18);
  --trans: all .3s cubic-bezier(.4,0,.2,1);
}

/* ---- Reset ---- */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.7;
  color: var(--c-dark);
  background: var(--c-white);
  -webkit-font-smoothing: antialiased;
}
img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { cursor: pointer; font-family: inherit; }

/* ---- Typography ---- */
h1,h2,h3,h4,h5,h6 {
  font-family: var(--font-head);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: .02em;
  color: var(--c-navy);
}
h1 { font-size: clamp(2.4rem, 5vw, 4rem); font-weight: 700; }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.8rem); }
h3 { font-size: clamp(1.4rem, 2.5vw, 2rem); }
h4 { font-size: 1.25rem; }
p { color: var(--c-slate); line-height: 1.8; }

/* ---- Layout helpers ---- */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section-pad { padding: 96px 0; }
.section-pad-sm { padding: 64px 0; }

.label {
  display: inline-block;
  font-family: var(--font-head);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .18em;
  text-transform: uppercase;
  color: var(--c-green);
  margin-bottom: 14px;
}
.divider {
  width: 48px;
  height: 3px;
  background: var(--c-green);
  margin: 16px 0 28px;
  border-radius: 2px;
}
.divider.center { margin-left: auto; margin-right: auto; }

/* ---- Buttons ---- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 30px;
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius);
  transition: var(--trans);
  white-space: nowrap;
}
.btn-primary {
  background: var(--c-green);
  color: var(--c-white);
}
.btn-primary:hover { background: #4e7a51; transform: translateY(-2px); box-shadow: 0 8px 24px rgba(94,140,97,.35); }

.btn-outline {
  background: transparent;
  color: var(--c-white);
  border: 2px solid rgba(255,255,255,.6);
}
.btn-outline:hover { background: rgba(255,255,255,.1); border-color: var(--c-white); transform: translateY(-2px); }

.btn-outline-dark {
  background: transparent;
  color: var(--c-navy);
  border: 2px solid var(--c-navy);
}
.btn-outline-dark:hover { background: var(--c-navy); color: var(--c-white); }

.btn-wsp {
  background: #25D366;
  color: var(--c-white);
}
.btn-wsp:hover { background: #1ebe5a; transform: translateY(-2px); }

.btn svg, .btn img { width: 18px; height: 18px; }

/* ============================================================
   HEADER / NAV
   ============================================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  transition: var(--trans);
}
.header-top {
  background: var(--c-dark);
  padding: 8px 0;
}
.header-top .container {
  display: flex;
  justify-content: flex-end;
  align-items: center;
  gap: 24px;
}
.header-contact-item {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: .83rem;
  color: rgba(255,255,255,.75);
  transition: var(--trans);
}
.header-contact-item:hover { color: var(--c-white); }
.header-contact-item svg { width: 14px; height: 14px; flex-shrink: 0; }

.header-main {
  background: var(--c-navy);
  box-shadow: 0 2px 16px rgba(0,0,0,.2);
}
.header-main .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-wrap img { height: 44px; width: auto; border-radius: 2px; }
.logo-text {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: .12em;
  color: var(--c-white);
}
.logo-sub {
  display: block;
  font-size: .62rem;
  font-weight: 400;
  letter-spacing: .18em;
  color: rgba(255,255,255,.55);
  text-transform: uppercase;
  line-height: 1;
  margin-top: 2px;
}

/* Desktop nav */
.nav-desktop { display: flex; align-items: center; gap: 4px; }
.nav-desktop a {
  font-family: var(--font-head);
  font-size: .95rem;
  font-weight: 500;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: rgba(255,255,255,.80);
  padding: 8px 14px;
  border-radius: var(--radius);
  transition: var(--trans);
  position: relative;
}
.nav-desktop a:hover,
.nav-desktop a.active { color: var(--c-white); }
.nav-desktop a.active::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 14px; right: 14px;
  height: 2px;
  background: var(--c-green);
  border-radius: 2px;
}

/* Dropdown */
.nav-has-dropdown { position: relative; }
.nav-dropdown {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  left: 0;
  min-width: 220px;
  background: var(--c-white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-deep);
  border-top: 3px solid var(--c-green);
  overflow: hidden;
}
.nav-has-dropdown:hover .nav-dropdown { display: block; }
.nav-dropdown a {
  display: block;
  font-family: var(--font-body);
  font-size: .9rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
  color: var(--c-dark) !important;
  padding: 12px 18px !important;
  border-radius: 0 !important;
  border-bottom: 1px solid var(--c-sand);
}
.nav-dropdown a:last-child { border-bottom: none; }
.nav-dropdown a:hover { background: var(--c-off); color: var(--c-navy) !important; }

.nav-cta { margin-left: 12px; padding: 10px 22px; font-size: .85rem; }

/* Mobile toggle */
.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 6px;
}
.nav-toggle span {
  display: block;
  width: 26px;
  height: 2px;
  background: var(--c-white);
  border-radius: 2px;
  transition: var(--trans);
}
.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); }

/* Mobile nav drawer */
.nav-mobile {
  display: none;
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: var(--c-dark);
  z-index: 999;
  padding: 100px 32px 40px;
  flex-direction: column;
  gap: 4px;
  overflow-y: auto;
}
.nav-mobile.open { display: flex; }
.nav-mobile a {
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.8);
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,.08);
  transition: var(--trans);
}
.nav-mobile a:hover { color: var(--c-white); padding-left: 8px; }
.nav-mobile .mobile-sub {
  font-size: 1rem;
  padding-left: 16px;
  color: rgba(255,255,255,.55);
  border-bottom: 1px solid rgba(255,255,255,.04);
}
.nav-mobile .mobile-sub:hover { color: rgba(255,255,255,.85); }
.nav-mobile-close {
  position: absolute;
  top: 24px;
  right: 24px;
  background: none;
  border: none;
  color: var(--c-white);
  font-size: 1.8rem;
  line-height: 1;
}

/* Scrolled header */
.site-header.scrolled .header-top { display: none; }
.site-header.scrolled .header-main { box-shadow: 0 4px 24px rgba(0,0,0,.25); }

/* ============================================================
   HERO
   ============================================================ */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  position: relative;
  overflow: hidden;
  background: var(--c-navy);
  padding-top: 110px;
}
.hero-bg {
  position: absolute;
  inset: 0;
  background:
    linear-gradient(135deg, rgba(31,78,95,.97) 0%, rgba(47,107,115,.85) 50%, rgba(46,53,56,.95) 100%),
    url('../img/proyectos/p2/principal.jpg') center/cover no-repeat;
  z-index: 0;
}
.hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      90deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,.015) 60px,
      rgba(255,255,255,.015) 61px
    ),
    repeating-linear-gradient(
      0deg,
      transparent,
      transparent 60px,
      rgba(255,255,255,.015) 60px,
      rgba(255,255,255,.015) 61px
    );
  z-index: 1;
}
.hero .container { position: relative; z-index: 2; }
.hero-content { max-width: 720px; }
.hero-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: var(--font-head);
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .22em;
  text-transform: uppercase;
  color: var(--c-sage);
  margin-bottom: 24px;
}
.hero-label::before {
  content: '';
  display: block;
  width: 32px;
  height: 2px;
  background: var(--c-sage);
  border-radius: 2px;
}
.hero h1 {
  color: var(--c-white);
  margin-bottom: 24px;
  font-weight: 700;
  text-shadow: 0 2px 12px rgba(0,0,0,.2);
}
.hero h1 span { color: var(--c-sage); }
.hero-desc {
  font-size: 1.15rem;
  color: rgba(255,255,255,.75);
  max-width: 560px;
  margin-bottom: 40px;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}
.hero-scroll {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: rgba(255,255,255,.45);
  font-size: .72rem;
  letter-spacing: .15em;
  text-transform: uppercase;
  font-family: var(--font-head);
}
.hero-scroll-line {
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,.5), transparent);
  animation: scrollLine 1.8s ease-in-out infinite;
}
@keyframes scrollLine {
  0%,100% { opacity: 1; transform: scaleY(1); transform-origin: top; }
  50% { opacity: .3; transform: scaleY(.5); transform-origin: top; }
}

/* Hero stats bar */
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  border-top: 1px solid rgba(255,255,255,.12);
  margin-top: 60px;
  padding-top: 40px;
}
.hero-stat {
  flex: 1;
  min-width: 160px;
  padding: 0 24px 0 0;
  border-right: 1px solid rgba(255,255,255,.12);
}
.hero-stat:first-child { padding-left: 0; }
.hero-stat:last-child { border-right: none; }
.hero-stat-num {
  font-family: var(--font-head);
  font-size: 2.8rem;
  font-weight: 700;
  color: var(--c-white);
  line-height: 1;
}
.hero-stat-num span { color: var(--c-sage); }
.hero-stat-label {
  font-size: .82rem;
  color: rgba(255,255,255,.55);
  margin-top: 4px;
  font-family: var(--font-head);
  letter-spacing: .06em;
  text-transform: uppercase;
}

/* ============================================================
   SECTIONS — general
   ============================================================ */
.bg-off { background: var(--c-off); }
.bg-dark { background: var(--c-dark); }
.bg-navy { background: var(--c-navy); }
.bg-teal { background: var(--c-teal); }

/* ---- Section header ---- */
.section-header { margin-bottom: 56px; }
.section-header.center { text-align: center; }
.section-header h2 { margin-bottom: 6px; }
.section-header p {
  max-width: 600px;
  font-size: 1.05rem;
}
.section-header.center p { margin: 0 auto; }

/* ============================================================
   SOLUTIONS / SERVICES GRID
   ============================================================ */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2px;
}
.service-card {
  position: relative;
  overflow: hidden;
  background: var(--c-navy);
  aspect-ratio: 4/3;
  display: flex;
  align-items: flex-end;
  cursor: pointer;
  transition: var(--trans);
}
.service-card-img {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
  transition: transform .6s cubic-bezier(.4,0,.2,1);
}
.service-card:hover .service-card-img { transform: scale(1.06); }
.service-card-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(31,78,95,.92) 0%, rgba(31,78,95,.3) 60%, transparent 100%);
  transition: var(--trans);
}
.service-card:hover .service-card-overlay { background: linear-gradient(to top, rgba(31,78,95,.97) 0%, rgba(31,78,95,.55) 70%, rgba(31,78,95,.15) 100%); }
.service-card-body {
  position: relative;
  z-index: 1;
  padding: 28px;
}
.service-card-icon {
  width: 40px;
  height: 40px;
  background: var(--c-green);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 12px;
  transform: translateY(8px);
  opacity: 0;
  transition: var(--trans);
}
.service-card-icon svg { width: 18px; height: 18px; color: white; }
.service-card:hover .service-card-icon { opacity: 1; transform: translateY(0); }
.service-card h3 {
  color: var(--c-white);
  font-size: 1.4rem;
  margin-bottom: 8px;
}
.service-card p {
  color: rgba(255,255,255,.75);
  font-size: .9rem;
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease, opacity .4s ease;
  opacity: 0;
}
.service-card:hover p { max-height: 120px; opacity: 1; }
.service-card-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-head);
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-sage);
  margin-top: 12px;
  opacity: 0;
  transform: translateX(-8px);
  transition: var(--trans);
}
.service-card:hover .service-card-link { opacity: 1; transform: translateX(0); }
.service-card-link svg { width: 14px; height: 14px; }

/* ============================================================
   SEGMENTS / APPLICATIONS
   ============================================================ */
.segments { background: var(--c-off); }
.segments-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.segment-item {
  background: var(--c-white);
  border-radius: var(--radius);
  padding: 40px 32px;
  border-bottom: 3px solid transparent;
  transition: var(--trans);
  box-shadow: 0 2px 12px rgba(0,0,0,.04);
}
.segment-item:hover {
  border-bottom-color: var(--c-green);
  transform: translateY(-4px);
  box-shadow: var(--shadow);
}
.segment-icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--c-navy), var(--c-teal));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
}
.segment-icon svg { width: 26px; height: 26px; color: white; }
.segment-item h3 { font-size: 1.3rem; margin-bottom: 12px; color: var(--c-navy); }
.segment-item p { font-size: .95rem; }
.segment-item ul {
  margin-top: 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.segment-item ul li {
  font-size: .9rem;
  color: var(--c-slate);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}
.segment-item ul li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--c-green);
  margin-top: 8px;
  flex-shrink: 0;
}

/* ============================================================
   DIFFERENTIATORS
   ============================================================ */
.diff-wrap {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
}
.diff-visual {
  background: var(--c-navy);
  position: relative;
  overflow: hidden;
  min-height: 500px;
}
.diff-visual-img {
  position: absolute;
  inset: 0;
  background: url('../img/proyectos/p1/principal.jpg') center/cover;
  opacity: .4;
}
.diff-visual-content {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 60px;
}
.diff-visual-content .label { color: var(--c-sage); }
.diff-visual-content h2 { color: var(--c-white); margin-bottom: 16px; }
.diff-visual-content p { color: rgba(255,255,255,.7); }

.diff-list { padding: 80px 64px; background: var(--c-off); display: flex; flex-direction: column; justify-content: center; }
.diff-items { display: flex; flex-direction: column; gap: 0; }
.diff-item {
  display: flex;
  gap: 20px;
  padding: 24px 0;
  border-bottom: 1px solid var(--c-sand);
  transition: var(--trans);
}
.diff-item:last-child { border-bottom: none; }
.diff-item:hover { padding-left: 6px; }
.diff-num {
  font-family: var(--font-head);
  font-size: 2rem;
  font-weight: 700;
  color: var(--c-sand);
  line-height: 1;
  min-width: 40px;
  padding-top: 2px;
}
.diff-item h4 { font-size: 1.1rem; margin-bottom: 4px; color: var(--c-navy); }
.diff-item p { font-size: .9rem; }

/* ============================================================
   PROJECTS GRID
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.project-card {
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--c-white);
  box-shadow: 0 2px 12px rgba(0,0,0,.06);
  transition: var(--trans);
  display: flex;
  flex-direction: column;
}
.project-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-deep); }
.project-thumb {
  position: relative;
  aspect-ratio: 16/10;
  overflow: hidden;
}
.project-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .6s ease;
}
.project-card:hover .project-thumb img { transform: scale(1.06); }
.project-tag {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--c-green);
  color: var(--c-white);
  font-family: var(--font-head);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 2px;
}
.project-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.project-body h3 {
  font-size: 1.15rem;
  margin-bottom: 8px;
  color: var(--c-navy);
}
.project-body p {
  font-size: .9rem;
  flex: 1;
  margin-bottom: 16px;
}
.project-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-family: var(--font-head);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-teal);
  transition: var(--trans);
}
.project-link:hover { gap: 10px; color: var(--c-navy); }
.project-link svg { width: 14px; height: 14px; }

/* Project detail gallery */
.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 12px;
}
.gallery-grid img {
  width: 100%;
  height: 220px;
  object-fit: cover;
  border-radius: var(--radius);
  transition: var(--trans);
  cursor: pointer;
}
.gallery-grid img:hover { transform: scale(1.02); box-shadow: var(--shadow); }

/* Lightbox */
.lightbox {
  display: none;
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,.9);
  z-index: 9999;
  align-items: center;
  justify-content: center;
}
.lightbox.open { display: flex; }
.lightbox img { max-width: 92vw; max-height: 88vh; object-fit: contain; border-radius: var(--radius); }
.lightbox-close {
  position: absolute;
  top: 24px; right: 32px;
  background: none;
  border: none;
  color: var(--c-white);
  font-size: 2rem;
  line-height: 1;
}

/* ============================================================
   PROCESS STEPS
   ============================================================ */
.process { background: var(--c-navy); }
.process .label { color: var(--c-sage); }
.process .section-header h2 { color: var(--c-white); }
.process .section-header p { color: rgba(255,255,255,.65); }
.process-steps {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 0;
  position: relative;
}
.process-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: 10%;
  right: 10%;
  height: 2px;
  background: rgba(255,255,255,.12);
  z-index: 0;
}
.step {
  text-align: center;
  position: relative;
  z-index: 1;
  padding: 0 16px;
}
.step-num {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background: rgba(255,255,255,.07);
  border: 2px solid rgba(255,255,255,.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  font-family: var(--font-head);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--c-sage);
  transition: var(--trans);
}
.step:hover .step-num { background: var(--c-green); border-color: var(--c-green); color: white; }
.step h4 { color: var(--c-white); font-size: 1rem; margin-bottom: 8px; }
.step p { color: rgba(255,255,255,.5); font-size: .85rem; }

/* ============================================================
   CTA BAND
   ============================================================ */
.cta-band {
  background: linear-gradient(135deg, var(--c-green) 0%, var(--c-teal) 100%);
  padding: 72px 0;
}
.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  flex-wrap: wrap;
}
.cta-band h2 { color: var(--c-white); max-width: 540px; }
.cta-band p { color: rgba(255,255,255,.8); margin-top: 8px; }
.cta-band-actions { display: flex; gap: 14px; flex-wrap: wrap; }
.cta-band .btn-outline { border-color: rgba(255,255,255,.6); color: var(--c-white); }
.cta-band .btn-light { background: var(--c-white); color: var(--c-teal); }
.cta-band .btn-light:hover { background: var(--c-off); }

/* ============================================================
   TRUST / GUARANTEE BAND
   ============================================================ */
.trust-band { border-top: 1px solid var(--c-sand); border-bottom: 1px solid var(--c-sand); }
.trust-items {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
}
.trust-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 36px 32px;
  border-right: 1px solid var(--c-sand);
}
.trust-item:last-child { border-right: none; }
.trust-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--c-navy), var(--c-teal));
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.trust-icon svg { width: 20px; height: 20px; color: white; }
.trust-item h4 { font-size: 1rem; margin-bottom: 4px; }
.trust-item p { font-size: .85rem; }

/* ============================================================
   ABOUT PAGE
   ============================================================ */
.about-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.about-visual {
  position: relative;
}
.about-visual img {
  width: 100%;
  border-radius: var(--radius);
  box-shadow: var(--shadow-deep);
}
.about-badge {
  position: absolute;
  bottom: -20px;
  right: -20px;
  background: var(--c-green);
  color: var(--c-white);
  padding: 20px 24px;
  border-radius: var(--radius);
  text-align: center;
  box-shadow: var(--shadow);
}
.about-badge-num {
  font-family: var(--font-head);
  font-size: 2.5rem;
  font-weight: 700;
  line-height: 1;
}
.about-badge-label { font-size: .8rem; letter-spacing: .08em; text-transform: uppercase; opacity: .85; }

/* ============================================================
   CONTACT PAGE
   ============================================================ */
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 0;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-deep);
}
.contact-info {
  background: var(--c-navy);
  padding: 56px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}
.contact-info h3 { color: var(--c-white); margin-bottom: 8px; }
.contact-info > p { color: rgba(255,255,255,.65); margin-bottom: 40px; }
.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 28px;
}
.contact-item-icon {
  width: 44px;
  height: 44px;
  background: rgba(255,255,255,.08);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}
.contact-item-icon svg { width: 18px; height: 18px; color: var(--c-sage); }
.contact-item h5 {
  font-size: .78rem;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: rgba(255,255,255,.45);
  margin-bottom: 2px;
  font-weight: 600;
  font-family: var(--font-head);
}
.contact-item a, .contact-item p {
  color: var(--c-white);
  font-size: 1rem;
}
.contact-item a:hover { color: var(--c-sage); }
.contact-social { margin-top: 40px; display: flex; gap: 12px; }
.social-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 18px;
  border-radius: var(--radius);
  background: rgba(255,255,255,.08);
  color: rgba(255,255,255,.75);
  font-size: .85rem;
  font-family: var(--font-head);
  letter-spacing: .06em;
  transition: var(--trans);
}
.social-btn:hover { background: rgba(255,255,255,.15); color: var(--c-white); }
.social-btn svg { width: 16px; height: 16px; }

.contact-form { background: var(--c-white); padding: 56px 48px; }
.contact-form h3 { margin-bottom: 4px; }
.contact-form > p { margin-bottom: 32px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-group { display: flex; flex-direction: column; gap: 6px; margin-bottom: 16px; }
.form-group label {
  font-size: .82rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-slate);
  font-family: var(--font-head);
}
.form-group input,
.form-group select,
.form-group textarea {
  padding: 13px 16px;
  border: 1.5px solid var(--c-sand);
  border-radius: var(--radius);
  font-family: var(--font-body);
  font-size: .95rem;
  color: var(--c-dark);
  background: var(--c-off);
  transition: var(--trans);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--c-teal);
  background: var(--c-white);
  box-shadow: 0 0 0 3px rgba(47,107,115,.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-group select { appearance: none; cursor: pointer; }
.form-note { font-size: .8rem; color: rgba(95,107,109,.7); margin-bottom: 24px; }

/* ============================================================
   PAGE HERO (Interior pages)
   ============================================================ */
.page-hero {
  padding: 160px 0 80px;
  background: var(--c-navy);
  position: relative;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute;
  inset: 0;
  opacity: .12;
  background-size: cover;
  background-position: center;
}
.page-hero-pattern {
  position: absolute;
  inset: 0;
  background-image:
    repeating-linear-gradient(
      -45deg,
      transparent,
      transparent 40px,
      rgba(255,255,255,.015) 40px,
      rgba(255,255,255,.015) 41px
    );
}
.page-hero .container { position: relative; z-index: 1; }
.page-hero .label { color: var(--c-sage); }
.page-hero h1 { color: var(--c-white); margin-bottom: 16px; }
.page-hero p { color: rgba(255,255,255,.7); max-width: 600px; font-size: 1.1rem; }
.breadcrumb {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 24px;
  font-size: .82rem;
  color: rgba(255,255,255,.45);
  font-family: var(--font-head);
  letter-spacing: .06em;
}
.breadcrumb a { color: rgba(255,255,255,.6); transition: var(--trans); }
.breadcrumb a:hover { color: var(--c-white); }
.breadcrumb svg { width: 12px; height: 12px; }

/* ============================================================
   SOLUTION DETAIL
   ============================================================ */
.solution-detail { display: grid; grid-template-columns: 1fr 1fr; gap: 80px; align-items: start; }
.solution-detail img { width: 100%; border-radius: var(--radius); box-shadow: var(--shadow-deep); }
.solution-specs { margin-top: 32px; }
.spec-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 14px 0;
  border-bottom: 1px solid var(--c-sand);
}
.spec-item:last-child { border-bottom: none; }
.spec-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--c-green);
  margin-top: 8px;
  flex-shrink: 0;
}
.spec-item p { margin: 0; font-size: .95rem; color: var(--c-dark); }

/* Applications bar */
.app-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; }
.app-tag {
  background: var(--c-off);
  border: 1px solid var(--c-sand);
  color: var(--c-slate);
  font-family: var(--font-head);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: 2px;
}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list { max-width: 800px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--c-sand);
}
.faq-q {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 22px 0;
  cursor: pointer;
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--c-navy);
  transition: var(--trans);
}
.faq-q:hover { color: var(--c-teal); }
.faq-icon {
  width: 28px;
  height: 28px;
  border: 2px solid var(--c-sand);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: var(--trans);
  color: var(--c-slate);
}
.faq-item.open .faq-icon { background: var(--c-green); border-color: var(--c-green); color: white; transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height .4s ease;
}
.faq-a-inner { padding: 0 0 22px; color: var(--c-slate); font-size: .97rem; line-height: 1.8; }
.faq-item.open .faq-a { max-height: 400px; }

/* ============================================================
   FOOTER
   ============================================================ */
.site-footer { background: var(--c-dark); color: rgba(255,255,255,.65); }
.footer-main { padding: 72px 0 48px; }
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
}
.footer-brand img { height: 40px; margin-bottom: 16px; filter: brightness(1.2); }
.footer-brand p { font-size: .9rem; max-width: 280px; margin-bottom: 24px; }
.footer-contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .88rem;
  margin-bottom: 10px;
  color: rgba(255,255,255,.6);
}
.footer-contact-item svg { width: 14px; height: 14px; color: var(--c-sage); flex-shrink: 0; }
.footer-contact-item a:hover { color: var(--c-white); }
.footer-col h5 {
  font-family: var(--font-head);
  font-size: .82rem;
  font-weight: 700;
  letter-spacing: .2em;
  text-transform: uppercase;
  color: rgba(255,255,255,.35);
  margin-bottom: 20px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul a {
  font-size: .9rem;
  color: rgba(255,255,255,.6);
  transition: var(--trans);
}
.footer-col ul a:hover { color: var(--c-white); padding-left: 4px; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.07);
  padding: 24px 0;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: .82rem; }
.footer-wsp {
  display: flex;
  align-items: center;
  gap: 8px;
  background: #25D366;
  color: white;
  padding: 8px 16px;
  border-radius: 99px;
  font-size: .85rem;
  font-weight: 600;
  transition: var(--trans);
}
.footer-wsp:hover { background: #1ebe5a; }
.footer-wsp svg { width: 16px; height: 16px; }

/* ============================================================
   FLOATING WhatsApp
   ============================================================ */
.float-wsp {
  position: fixed;
  bottom: 28px;
  right: 28px;
  z-index: 900;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25D366;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 6px 20px rgba(37,211,102,.4);
  transition: var(--trans);
  animation: pulse 2.5s ease-in-out infinite;
}
.float-wsp:hover { transform: scale(1.12); box-shadow: 0 10px 28px rgba(37,211,102,.55); }
.float-wsp svg { width: 28px; height: 28px; color: white; }
@keyframes pulse {
  0%,100% { box-shadow: 0 6px 20px rgba(37,211,102,.4), 0 0 0 0 rgba(37,211,102,.3); }
  50% { box-shadow: 0 6px 20px rgba(37,211,102,.4), 0 0 0 12px rgba(37,211,102,.0); }
}

/* ============================================================
   ANIMATE ON SCROLL
   ============================================================ */
[data-aos] {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity .6s ease, transform .6s ease;
}
[data-aos].visible {
  opacity: 1;
  transform: translateY(0);
}
[data-aos="fade-right"] { transform: translateX(-20px); }
[data-aos="fade-right"].visible { transform: translateX(0); }
[data-aos="fade-left"] { transform: translateX(20px); }
[data-aos="fade-left"].visible { transform: translateX(0); }

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .diff-list { padding: 60px 40px; }
  .process-steps { grid-template-columns: repeat(3, 1fr); gap: 24px; }
  .process-steps::before { display: none; }
}

@media (max-width: 900px) {
  .nav-desktop { display: none; }
  .nav-toggle { display: flex; }
  .services-grid { grid-template-columns: 1fr 1fr; }
  .diff-wrap { grid-template-columns: 1fr; }
  .diff-visual { min-height: 300px; }
  .about-intro { grid-template-columns: 1fr; gap: 48px; }
  .contact-wrap { grid-template-columns: 1fr; }
  .contact-info { padding: 40px; }
  .contact-form { padding: 40px; }
  .solution-detail { grid-template-columns: 1fr; gap: 40px; }
  .trust-items { grid-template-columns: 1fr 1fr; }
  .trust-item { border-right: none; border-bottom: 1px solid var(--c-sand); }
  .trust-item:nth-child(2) { border-right: 1px solid var(--c-sand); }
  .trust-item:last-child { border-bottom: none; }
  .segments-grid { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  .section-pad { padding: 64px 0; }
  .services-grid { grid-template-columns: 1fr; }
  .hero-stats { gap: 24px; flex-direction: column; }
  .hero-stat { border-right: none; border-bottom: 1px solid rgba(255,255,255,.12); padding: 0 0 16px; }
  .hero-stat:last-child { border-bottom: none; }
  .cta-band-inner { flex-direction: column; text-align: center; }
  .cta-band-actions { justify-content: center; }
  .trust-items { grid-template-columns: 1fr; }
  .trust-item { border-right: none !important; }
  .trust-item:nth-child(2) { border-right: none !important; }
  .process-steps { grid-template-columns: 1fr 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr; gap: 40px; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .form-row { grid-template-columns: 1fr; }
  .projects-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .about-badge { bottom: -10px; right: -10px; padding: 16px 18px; }
}