/* ==========================================================================
   Navi's Pros — Stylesheet
   ========================================================================== */

:root {
  /* Color palette */
  --primary: #2563EB;
  --primary-dark: #1E3A8A;
  --primary-light: #EFF6FF;
  --bg: #F8FAFC;
  --white: #FFFFFF;
  --text-main: #0F172A;
  --text-secondary: #64748B;
  --border: #E2E8F0;
  --whatsapp: #25D366;
  --whatsapp-dark: #1DA851;

  /* Typography */
  --font-heading: 'Plus Jakarta Sans', 'Inter', sans-serif;
  --font-body: 'Inter', sans-serif;

  /* Layout */
  --container-width: 1180px;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06), 0 1px 3px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 8px 24px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 45px rgba(30, 58, 138, 0.14);

  /* Motion */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --header-height: 76px;
}

/* ============ Reset ============ */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: var(--header-height); }
body, h1, h2, h3, h4, p, ul, figure { margin: 0; }
ul { padding: 0; list-style: none; }
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
input, select, textarea { font: inherit; }

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

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--text-main);
  letter-spacing: -0.02em;
}

h1 { font-size: clamp(2.1rem, 4.2vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.7rem, 3vw, 2.35rem); }
h3 { font-size: 1.15rem; }

p { color: var(--text-secondary); }

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

section { padding: 96px 0; }

.eyebrow {
  display: inline-block;
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.8rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 14px;
}

/* Skip link */
.skip-link {
  position: absolute;
  left: -999px;
  top: 0;
  background: var(--primary);
  color: var(--white);
  padding: 12px 18px;
  border-radius: var(--radius-sm);
  z-index: 999;
}
.skip-link:focus {
  left: 16px;
  top: 16px;
}

/* Focus visibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2.5px solid var(--primary);
  outline-offset: 2px;
  border-radius: 4px;
}

/* ============ Buttons ============ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.95rem;
  padding: 13px 26px;
  border-radius: var(--radius-sm);
  border: 1.5px solid transparent;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease), border-color 0.25s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }

.btn-primary {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  box-shadow: 0 10px 24px rgba(37, 99, 235, 0.28);
}
.btn-primary:hover { box-shadow: 0 14px 30px rgba(37, 99, 235, 0.36); }

.btn-secondary {
  background: var(--white);
  color: var(--text-main);
  border-color: var(--border);
}
.btn-secondary:hover { border-color: var(--primary); color: var(--primary); }

.btn-whatsapp {
  background: var(--whatsapp);
  color: var(--white);
  box-shadow: 0 10px 24px rgba(37, 211, 102, 0.32);
}
.btn-whatsapp:hover { background: var(--whatsapp-dark); }

.btn-lg { padding: 15px 32px; font-size: 1rem; }
.btn-sm { padding: 10px 20px; font-size: 0.88rem; }
.btn-block { width: 100%; }

/* ============ Header ============ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 250, 252, 0.85);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: background 0.3s var(--ease), border-color 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.site-header.scrolled {
  background: rgba(255, 255, 255, 0.92);
  border-bottom-color: var(--border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  height: var(--header-height);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-shrink: 0;
}
.logo-mark { display: flex; }
.logo-text {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 1.2rem;
  color: var(--text-main);
}
.logo-text.light { color: var(--white); }
.logo-text strong { font-weight: 800; color: var(--primary); }
.logo-text.light strong { color: #93C5FD; }

.main-nav ul {
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-link {
  display: inline-block;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  font-weight: 500;
  font-size: 0.95rem;
  color: var(--text-main);
  position: relative;
  transition: color 0.2s var(--ease);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 14px;
  right: 14px;
  bottom: 6px;
  height: 2px;
  background: var(--primary);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform 0.25s var(--ease);
}
.nav-link:hover { color: var(--primary); }
.nav-link:hover::after { transform: scaleX(1); }

.header-actions { display: flex; align-items: center; gap: 14px; }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0;
  align-items: center;
}
.hamburger span {
  width: 18px;
  height: 2px;
  background: var(--text-main);
  border-radius: 2px;
  transition: transform 0.3s var(--ease), opacity 0.3s var(--ease);
}
.hamburger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.hamburger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile menu */
.mobile-menu {
  display: none;
  max-height: 0;
  overflow: hidden;
  background: var(--white);
  border-bottom: 1px solid var(--border);
  transition: max-height 0.4s var(--ease);
}
.mobile-menu.open { max-height: 480px; }
.mobile-menu nav { padding: 8px 24px 24px; }
.mobile-nav-link {
  display: block;
  padding: 14px 4px;
  font-weight: 500;
  font-size: 1.02rem;
  border-bottom: 1px solid var(--border);
}
.mobile-menu .btn { margin-top: 18px; }

/* ============ Hero ============ */
.hero { padding: 76px 0 100px; overflow: hidden; }
.hero-inner {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: center;
  gap: 56px;
}

.hero-sub {
  font-size: 1.08rem;
  max-width: 520px;
  margin-top: 18px;
}
.hero-cta { display: flex; gap: 16px; margin-top: 34px; flex-wrap: wrap; }
.hero-trust {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 34px;
  font-size: 0.88rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.hero-trust .dot { color: var(--border); }

/* Hero visual */
.hero-visual { position: relative; height: 460px; }
.visual-stage { position: relative; width: 100%; height: 100%; }

.visual-ring {
  position: absolute;
  inset: 6% 10%;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, rgba(37,99,235,0.14), transparent 60%);
  z-index: 0;
}

.mock-window {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}

.mock-browser {
  width: 340px;
  top: 30px;
  left: 0;
  z-index: 2;
}
.mock-window-bar {
  display: flex;
  gap: 6px;
  padding: 12px 14px;
  background: var(--primary-light);
  border-bottom: 1px solid var(--border);
}
.mock-window-bar span {
  width: 9px; height: 9px; border-radius: 50%;
  background: #CBD5E1;
}
.mock-window-bar span:nth-child(1) { background: #F87171; }
.mock-window-bar span:nth-child(2) { background: #FBBF24; }
.mock-window-bar span:nth-child(3) { background: #34D399; }

.mock-window-body { padding: 20px; }
.mock-line {
  height: 10px;
  border-radius: 5px;
  background: var(--border);
  margin-bottom: 12px;
}
.mock-line.w-70 { width: 70%; }
.mock-line.w-40 { width: 40%; background: var(--primary-light); }
.mock-line.w-80 { width: 80%; }
.mock-line.w-60 { width: 60%; }

.mock-chart {
  display: flex;
  align-items: flex-end;
  gap: 8px;
  height: 90px;
  margin-top: 18px;
}
.mock-bar {
  flex: 1;
  height: var(--h);
  border-radius: 5px 5px 0 0;
  background: linear-gradient(180deg, var(--primary), var(--primary-dark));
  opacity: 0.9;
}

.mock-phone {
  width: 168px;
  height: 300px;
  right: 6px;
  bottom: 0;
  z-index: 3;
  border-radius: 26px;
  border-width: 6px;
  border-color: var(--text-main);
  padding-top: 6px;
}
.mock-phone-notch {
  width: 50px;
  height: 8px;
  background: var(--text-main);
  border-radius: 6px;
  margin: 0 auto 10px;
}
.mock-phone-body { padding: 0 16px 16px; }
.mock-pill {
  width: 44px; height: 6px;
  border-radius: 4px;
  background: var(--primary);
  margin-bottom: 14px;
}
.mock-card-small {
  height: 46px;
  border-radius: 10px;
  background: var(--primary-light);
  border: 1px solid var(--border);
  margin-bottom: 10px;
}

.chip {
  position: absolute;
  display: flex;
  align-items: center;
  gap: 6px;
  background: var(--white);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-md);
  border-radius: 999px;
  padding: 8px 14px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-main);
  z-index: 4;
}
.chip-dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: #34D399;
}
.chip-1 { top: 8px; right: 20px; }
.chip-2 { bottom: 90px; left: -14px; }

/* Float animations */
.float-slow { animation: floatY 6.5s ease-in-out infinite; }
.float-mid { animation: floatY 5s ease-in-out infinite; }
.float-fast { animation: floatY 4s ease-in-out infinite; }
@keyframes floatY {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-12px); }
}

/* ============ Services ============ */
.section-heading {
  max-width: 640px;
  margin: 0 auto 56px;
  text-align: center;
}
.section-heading h2 { margin-top: 4px; }

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

.service-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: #C7D9FB;
}

.service-icon {
  width: 52px;
  height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: var(--radius-sm);
  margin-bottom: 20px;
  transition: background 0.3s var(--ease), transform 0.3s var(--ease);
}
.service-card:hover .service-icon {
  background: var(--primary);
  color: var(--white);
  transform: scale(1.06);
}

.service-card h3 { margin-bottom: 10px; }
.service-card p { font-size: 0.95rem; }

/* ============ Technologies ============ */
.tech-groups {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px 24px;
}
.tech-group-title {
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  text-transform: uppercase;
  color: var(--text-secondary);
  margin-bottom: 14px;
}
.tech-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.tech-pill {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-size: 0.88rem;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--white);
  border: 1px solid var(--border);
  padding: 8px 16px 8px 8px;
  border-radius: var(--radius-sm);
  box-shadow: var(--shadow-sm);
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease), box-shadow 0.2s var(--ease);
}
.tech-pill:hover {
  border-color: var(--primary);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.tech-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 6px;
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 0.62rem;
  letter-spacing: -0.2px;
  line-height: 1;
}

/* ============ About ============ */
.about { background: var(--white); }
.about-inner {
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 64px;
  align-items: center;
}

.about-card {
  background: linear-gradient(160deg, var(--primary-light), var(--white));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px 28px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 22px;
}
.about-stat { display: flex; flex-direction: column; gap: 4px; }
.about-stat-num {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.5rem;
  color: var(--primary-dark);
}
.about-stat-label {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-weight: 500;
}
.about-divider { height: 1px; background: var(--border); }

.about-content p { margin-top: 16px; font-size: 1rem; }
.about-content p:first-of-type { margin-top: 14px; }

/* ============ Why Us ============ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 22px;
}
.why-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
}
.why-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.why-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: 16px;
}
.why-card h3 { font-size: 1.02rem; margin-bottom: 8px; }
.why-card p { font-size: 0.9rem; }

/* ============ Process ============ */
.process { background: var(--white); }
.process-track {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  position: relative;
}
.process-track::before {
  content: "";
  position: absolute;
  top: 22px;
  left: 6%;
  right: 6%;
  height: 2px;
  background: linear-gradient(90deg, var(--border), var(--primary), var(--border));
  z-index: 0;
}
.process-step { position: relative; z-index: 1; }
.process-num {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--white);
  border: 2px solid var(--primary);
  color: var(--primary);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.9rem;
  margin-bottom: 18px;
}
.process-step h3 { margin-bottom: 8px; }
.process-step p { font-size: 0.92rem; }

/* ============ Testimonials ============ */
.testimonials { background: var(--white); }

.testimonial-card {
  max-width: 780px;
  margin: 0 auto;
  background: linear-gradient(160deg, var(--primary-light), var(--white));
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  box-shadow: var(--shadow-md);
}

.testimonial-top {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-bottom: 26px;
}
.testimonial-logo {
  width: 52px;
  height: 52px;
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  color: var(--white);
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.4rem;
}
.testimonial-brand { flex: 1; min-width: 0; }
.testimonial-brand h3 { margin-bottom: 2px; }
.testimonial-tag { font-size: 0.85rem; color: var(--text-secondary); }

.testimonial-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--primary);
  padding: 8px 14px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--white);
  white-space: nowrap;
  transition: border-color 0.2s var(--ease), transform 0.2s var(--ease);
}
.testimonial-link:hover { border-color: var(--primary); transform: translateY(-2px); }

.testimonial-quote {
  margin: 0 0 24px;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 500;
  line-height: 1.55;
  color: var(--text-main);
}

.testimonial-footer {
  display: flex;
  flex-direction: column;
  gap: 2px;
  margin-bottom: 24px;
}
.testimonial-author { font-weight: 700; font-size: 0.95rem; }
.testimonial-role { font-size: 0.85rem; color: var(--text-secondary); }

.testimonial-highlights {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  padding-top: 22px;
  border-top: 1px solid var(--border);
}
.highlight-pill {
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--primary-dark);
  background: var(--primary-light);
  border: 1px solid #C7D9FB;
  padding: 7px 14px;
  border-radius: 999px;
}

/* ============ Industries ============ */
.industries { background: var(--white); }
.industry-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}
.industry-card {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 26px 22px;
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease), border-color 0.3s var(--ease);
}
.industry-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
  border-color: #C7D9FB;
}
.industry-icon {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--primary-light);
  color: var(--primary);
  margin-bottom: 16px;
}
.industry-card h3 { font-size: 1.02rem; margin-bottom: 8px; }
.industry-card p { font-size: 0.9rem; }

/* ============ CTA ============ */
.cta-section {
  background: linear-gradient(135deg, var(--primary-dark), var(--primary));
  padding: 80px 0;
}
.cta-inner { text-align: center; max-width: 620px; margin: 0 auto; }
.cta-inner h2 { color: var(--white); }
.cta-inner p { color: #DBEAFE; margin-top: 14px; font-size: 1.05rem; }
.cta-inner .btn { margin-top: 30px; }

/* ============ Contact ============ */
.contact-inner {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 60px;
}
.contact-sub { margin-top: 14px; max-width: 420px; }

.contact-details { margin-top: 30px; display: flex; flex-direction: column; gap: 16px; }
.contact-details li { display: flex; align-items: center; gap: 12px; font-weight: 500; }
.contact-icon {
  width: 38px; height: 38px;
  display: flex; align-items: center; justify-content: center;
  background: var(--primary-light);
  color: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
}
.contact-details a:hover { color: var(--primary); }

.social-row { display: flex; gap: 12px; margin-top: 28px; }
.social-btn {
  width: 40px; height: 40px;
  display: flex; align-items: center; justify-content: center;
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 50%;
  color: var(--text-main);
  transition: background 0.25s var(--ease), color 0.25s var(--ease), transform 0.25s var(--ease), border-color 0.25s var(--ease);
}
.social-btn:hover {
  background: var(--primary);
  border-color: var(--primary);
  color: var(--white);
  transform: translateY(-3px);
}
.site-footer .social-btn {
  background: rgba(255,255,255,0.06);
  border-color: rgba(255,255,255,0.14);
  color: var(--white);
}
.site-footer .social-btn:hover { background: var(--primary); border-color: var(--primary); }

.contact-form {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-md);
}
.form-row { margin-bottom: 20px; display: flex; flex-direction: column; }
.form-row label {
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 8px;
  color: var(--text-main);
}
.form-row input,
.form-row select,
.form-row textarea {
  padding: 12px 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--bg);
  color: var(--text-main);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
  resize: vertical;
}
.form-row input:focus,
.form-row select:focus,
.form-row textarea:focus {
  border-color: var(--primary);
  background: var(--white);
  outline: none;
}
.form-row.has-error input,
.form-row.has-error select,
.form-row.has-error textarea {
  border-color: #EF4444;
}
.field-error {
  font-size: 0.8rem;
  color: #EF4444;
  margin-top: 6px;
  min-height: 1em;
}
.form-note {
  margin-top: 16px;
  font-size: 0.88rem;
  text-align: center;
  color: var(--text-secondary);
  min-height: 1.2em;
}
.form-note.success { color: #16A34A; font-weight: 600; }

/* ============ Footer ============ */
.site-footer {
  background: var(--text-main);
  color: #CBD5E1;
  padding-top: 72px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 56px;
}
.footer-brand p { color: #94A3B8; margin-top: 16px; max-width: 300px; font-size: 0.92rem; }
.footer-col h4 {
  color: var(--white);
  font-size: 0.95rem;
  margin-bottom: 18px;
}
.footer-col ul { display: flex; flex-direction: column; gap: 12px; }
.footer-col a, .footer-col li { color: #94A3B8; font-size: 0.9rem; transition: color 0.2s var(--ease); }
.footer-col a:hover { color: var(--white); }

.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding: 22px 0;
}
.footer-bottom p { color: #64748B; font-size: 0.85rem; text-align: center; }

/* ============ Floating WhatsApp ============ */
.floating-whatsapp {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 58px;
  height: 58px;
  background: var(--whatsapp);
  color: var(--white);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 10px 26px rgba(37, 211, 102, 0.4);
  z-index: 200;
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease), background 0.25s var(--ease);
}
.floating-whatsapp:hover {
  transform: translateY(-4px) scale(1.04);
  background: var(--whatsapp-dark);
  box-shadow: 0 14px 32px rgba(37, 211, 102, 0.48);
}

/* ============ Scroll reveal ============ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s var(--ease), transform 0.7s var(--ease);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============ Reduced motion ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
  .float-slow, .float-mid, .float-fast { animation: none; }
}

/* ============ Responsive ============ */
@media (max-width: 1024px) {
  .hero-inner { grid-template-columns: 1fr; }
  .hero-visual { height: 380px; order: -1; margin-bottom: 8px; }
  .service-grid { grid-template-columns: repeat(3, 1fr); }
  .why-grid { grid-template-columns: repeat(2, 1fr); }
  .tech-groups { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .process-track { grid-template-columns: repeat(2, 1fr); row-gap: 40px; }
  .process-track::before { display: none; }
  .about-inner { grid-template-columns: 1fr; gap: 40px; }
  .contact-inner { grid-template-columns: 1fr; gap: 44px; }
  .footer-grid { grid-template-columns: 1fr 1fr; row-gap: 40px; }
}

@media (max-width: 860px) {
  .main-nav { display: none; }
  .hamburger { display: flex; }
  .mobile-menu { display: block; }
  .header-actions .btn-sm { display: none; }
}

@media (max-width: 640px) {
  section { padding: 68px 0; }
  .service-grid { grid-template-columns: 1fr; }
  .why-grid { grid-template-columns: 1fr; }
  .process-track { grid-template-columns: 1fr; }
  .tech-groups { grid-template-columns: 1fr; }
  .industry-grid { grid-template-columns: 1fr; }
  .hero-cta { flex-direction: column; align-items: stretch; }
  .hero-cta .btn { width: 100%; }
  .hero-visual { height: 320px; }
  .mock-browser { width: 280px; }
  .mock-phone { width: 140px; height: 250px; right: 0; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-form { padding: 26px; }
  .floating-whatsapp { width: 52px; height: 52px; bottom: 18px; right: 18px; }
  .testimonial-card { padding: 28px; }
  .testimonial-top { flex-wrap: wrap; }
  .testimonial-link { margin-left: 68px; }
}

@media (max-width: 400px) {
  .container { padding: 0 18px; }
  h1 { font-size: 1.9rem; }
}