/* ============================================
   SVAD Labs — Design Tokens
============================================ */
:root {
  --color-bg: #ffffff;
  --color-bg-alt: #f5f7fb;
  --color-surface: #ffffff;
  --color-border: #e4e8f0;
  --color-text: #131a2b;
  --color-text-muted: #5b6478;
  --color-primary: #2952e3;
  --color-primary-dark: #1c3aa8;
  --color-primary-light: #eef1fe;
  --color-accent: #14b8a6;
  --color-accent-dark: #0d9488;
  --gradient-hero: linear-gradient(135deg, #0b1230 0%, #182459 45%, #2952e3 100%);
  --font-display: 'Plus Jakarta Sans', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 24px;
  --shadow-sm: 0 2px 8px rgba(19, 26, 43, 0.06);
  --shadow-md: 0 12px 32px rgba(19, 26, 43, 0.10);
  --shadow-lg: 0 24px 60px rgba(19, 26, 43, 0.16);
  --header-height: 76px;
}

:root[data-theme="dark"] {
  --color-bg: #0b0e17;
  --color-bg-alt: #10141f;
  --color-surface: #141926;
  --color-border: #232a3d;
  --color-text: #eef1fa;
  --color-text-muted: #9aa3ba;
  --color-primary: #6b8bff;
  --color-primary-dark: #4a6adf;
  --color-primary-light: #1a2340;
  --color-accent: #2dd4bf;
  --color-accent-dark: #14b8a6;
  --gradient-hero: linear-gradient(135deg, #060811 0%, #0f1730 45%, #16244f 100%);
}

@media (prefers-color-scheme: dark) {
  :root:not([data-theme="light"]) {
    --color-bg: #0b0e17;
    --color-bg-alt: #10141f;
    --color-surface: #141926;
    --color-border: #232a3d;
    --color-text: #eef1fa;
    --color-text-muted: #9aa3ba;
    --color-primary: #6b8bff;
    --color-primary-dark: #4a6adf;
    --color-primary-light: #1a2340;
    --color-accent: #2dd4bf;
    --color-accent-dark: #14b8a6;
    --gradient-hero: linear-gradient(135deg, #060811 0%, #0f1730 45%, #16244f 100%);
  }
}

/* ============================================
   Reset & Base
============================================ */
* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

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

img { max-width: 100%; display: block; }

a { color: inherit; text-decoration: none; }

ul { list-style: none; }

h1, h2, h3, h4, h5 { font-family: var(--font-display); font-weight: 700; color: var(--color-text); line-height: 1.2; }

.container {
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ============================================
   Header / Nav
============================================ */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  height: var(--header-height);
  display: flex;
  align-items: center;
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: background 0.25s ease, border-color 0.25s ease, box-shadow 0.25s ease;
}

:root[data-theme="dark"] .site-header,
@media (prefers-color-scheme: dark) { .site-header { background: rgba(11, 14, 23, 0.85); } }

.site-header.scrolled {
  border-bottom-color: var(--color-border);
  box-shadow: var(--shadow-sm);
  background: var(--color-bg);
}

.nav-wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  object-fit: cover;
  flex-shrink: 0;
}

.brand-text { display: flex; flex-direction: column; line-height: 1.2; }
.brand-text strong { font-family: var(--font-display); font-size: 17px; }
.brand-text small { font-size: 11px; color: var(--color-text-muted); }

.main-nav { display: flex; align-items: center; gap: 28px; }
.main-nav a {
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color 0.2s ease;
  white-space: nowrap;
}
.main-nav a:hover { color: var(--color-primary); }

.nav-cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 10px 20px;
  border-radius: 999px;
  font-weight: 600 !important;
}
.nav-cta:hover { background: var(--color-primary-dark); }

.nav-item { position: relative; }
.nav-dropdown-toggle {
  display: flex;
  align-items: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-size: 14.5px;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 0;
  transition: color 0.2s ease;
}
.nav-dropdown-toggle:hover { color: var(--color-primary); }
.nav-dropdown-toggle .caret { font-size: 11px; transition: transform 0.2s ease; }
.nav-item.open .nav-dropdown-toggle .caret { transform: rotate(180deg); }

.nav-dropdown {
  position: absolute;
  top: calc(100% + 18px);
  left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 10px;
  min-width: 260px;
  display: flex;
  flex-direction: column;
  gap: 2px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.2s ease, transform 0.2s ease, visibility 0.2s ease;
  z-index: 50;
}
.nav-item:hover .nav-dropdown,
.nav-item.open .nav-dropdown {
  opacity: 1;
  visibility: visible;
  transform: translateX(-50%) translateY(0);
}
.nav-dropdown a {
  padding: 10px 14px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text);
  white-space: nowrap;
}
.nav-dropdown a:hover { background: var(--color-primary-light); color: var(--color-primary-dark); }
.nav-dropdown a.active-page { color: var(--color-primary); font-weight: 700; }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.nav-toggle span {
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}

/* ============================================
   Buttons
============================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 14px 30px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 15px;
  font-family: var(--font-display);
  cursor: pointer;
  border: none;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}
.btn-primary {
  background: var(--color-accent);
  color: #05221e;
  box-shadow: 0 10px 24px rgba(20, 184, 166, 0.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 30px rgba(20, 184, 166, 0.45); }

.btn-ghost {
  background: rgba(255, 255, 255, 0.08);
  color: #fff;
  border: 1.5px solid rgba(255, 255, 255, 0.35);
}
.btn-ghost:hover { background: rgba(255, 255, 255, 0.18); transform: translateY(-2px); }

/* ============================================
   Hero
============================================ */
.hero {
  position: relative;
  padding: calc(var(--header-height) + 96px) 0 96px;
  background: var(--gradient-hero);
  color: #fff;
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 15% 20%, rgba(41, 82, 227, 0.45), transparent 40%),
    radial-gradient(circle at 85% 15%, rgba(20, 184, 166, 0.35), transparent 45%),
    radial-gradient(circle at 75% 85%, rgba(41, 82, 227, 0.3), transparent 40%);
  pointer-events: none;
}

.hero-wrap { position: relative; max-width: 880px; }

.eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.3px;
  color: #b9c6ff;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.16);
  padding: 8px 16px;
  border-radius: 999px;
  margin-bottom: 24px;
}

.hero h1 {
  font-size: clamp(2.1rem, 4.5vw, 3.4rem);
  color: #fff;
  margin-bottom: 24px;
  letter-spacing: -0.02em;
}

.hero-sub {
  font-size: 18px;
  color: #d6dcf5;
  max-width: 720px;
  margin-bottom: 16px;
}
.hero-sub-2 {
  font-size: 16px;
  color: #b3bce0;
  max-width: 680px;
  margin-bottom: 36px;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 56px; }

.hero-expertise {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: var(--radius-lg);
  padding: 28px 32px;
  margin-bottom: 32px;
}
.hero-expertise-title {
  display: block;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-accent);
  margin-bottom: 16px;
}
.hero-expertise ul {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px 24px;
}
.hero-expertise li {
  font-size: 15px;
  color: #e6eaf9;
  padding-left: 22px;
  position: relative;
}
.hero-expertise li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent);
  font-weight: 700;
}

.hero-tagline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 19px;
  color: #fff;
}

/* ============================================
   Page Hero (service subpages)
============================================ */
.page-hero {
  position: relative;
  background: var(--gradient-hero);
  color: #fff;
  padding: calc(var(--header-height) + 64px) 0 64px;
  overflow: hidden;
}
.page-hero .hero-bg { position: absolute; inset: 0; }
.page-hero-wrap { position: relative; max-width: 760px; }
.breadcrumb {
  font-size: 13.5px;
  color: #b9c6ff;
  margin-bottom: 22px;
}
.breadcrumb a { color: #b9c6ff; }
.breadcrumb a:hover { color: #fff; }
.breadcrumb .sep { margin: 0 8px; opacity: 0.6; }
.page-hero h1 {
  font-size: clamp(1.9rem, 4vw, 2.7rem);
  color: #fff;
  margin-bottom: 18px;
  letter-spacing: -0.02em;
}
.page-hero p {
  font-size: 17px;
  color: #d6dcf5;
  max-width: 680px;
}
.page-hero .hero-actions { margin-top: 32px; margin-bottom: 0; }

/* CTA band at the end of a service page */
.cta-band {
  background: var(--color-primary-light);
  border-radius: var(--radius-lg);
  padding: 48px;
  text-align: center;
}
.cta-band h2 { margin-bottom: 12px; }
.cta-band p { color: var(--color-text-muted); max-width: 560px; margin: 0 auto 28px; }

/* ============================================
   Sections (shared)
============================================ */
.section { padding: 100px 0; }
.section-alt { background: var(--color-bg-alt); }

.section-eyebrow {
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 14px;
}
.section-eyebrow.light { color: var(--color-accent); }

.section h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  max-width: 780px;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}

/* ============================================
   About
============================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1.15fr 1fr;
  gap: 56px;
  align-items: start;
}
.about-copy p { color: var(--color-text-muted); margin-bottom: 18px; font-size: 16px; }
.mission-lead { font-weight: 600; color: var(--color-text) !important; margin-bottom: 6px !important; }
.mission-statement {
  font-family: var(--font-display);
  font-size: 19px !important;
  font-weight: 600;
  color: var(--color-text) !important;
  border-left: 3px solid var(--color-accent);
  padding-left: 18px;
  margin: 8px 0 22px !important;
}

.about-stats { display: flex; flex-direction: column; gap: 18px; }
.stat-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px 26px;
  box-shadow: var(--shadow-sm);
}
.stat-icon { font-size: 26px; display: block; margin-bottom: 10px; }
.stat-card h3 { font-size: 17px; margin-bottom: 6px; }
.stat-card p { font-size: 14.5px; color: var(--color-text-muted); }

/* ============================================
   Services / Tabs
============================================ */
.tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 40px;
  border-bottom: 1px solid var(--color-border);
  padding-bottom: 24px;
}
.tab-btn {
  font-family: var(--font-display);
  font-size: 14.5px;
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  padding: 12px 20px;
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s ease;
}
.tab-btn:hover { border-color: var(--color-primary); color: var(--color-primary); }
.tab-btn.active {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: #fff;
}

.tab-panel { display: none; animation: fadeIn 0.35s ease; }
.tab-panel.active { display: block; }

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}

.tab-panel h3 { font-size: 22px; margin-bottom: 12px; }
.tab-panel > p { color: var(--color-text-muted); max-width: 760px; margin-bottom: 28px; font-size: 16px; }
.tab-panel h4 { font-size: 15px; text-transform: uppercase; letter-spacing: 0.06em; margin-bottom: 16px; color: var(--color-text); }
.tab-panel h5 { font-size: 15px; margin-bottom: 12px; }

.panel-grid { display: grid; grid-template-columns: 1.5fr 1fr; gap: 48px; }
.panel-side {
  background: var(--color-primary-light);
  border-radius: var(--radius-md);
  padding: 28px;
  align-self: start;
}

.check-list li, .benefit-list li {
  padding-left: 28px;
  position: relative;
  margin-bottom: 14px;
  font-size: 15px;
  color: var(--color-text-muted);
}
.check-list li::before, .benefit-list li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--color-accent-dark);
  font-weight: 700;
}
.check-list.two-col {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: 24px;
}

.lifecycle {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 20px;
  margin-bottom: 40px;
}
.lifecycle-step {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 22px;
  box-shadow: var(--shadow-sm);
}
.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 14px;
  margin-bottom: 14px;
}
.lifecycle-step h5 { font-size: 15.5px; margin-bottom: 6px; }
.lifecycle-step p { font-size: 13.5px; color: var(--color-text-muted); }

.offering-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}
.offering-grid.three { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.offering-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 24px;
  box-shadow: var(--shadow-sm);
}
.offering-card h4 { font-size: 16.5px; margin-bottom: 8px; }
.offering-card h5 { font-size: 15px; margin-bottom: 12px; }
.offering-card > p { font-size: 14.5px; color: var(--color-text-muted); margin-bottom: 10px; }

.chip-list { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 6px; }
.panel-cta { margin-top: 32px; }

.chip-list li {
  font-size: 13px;
  font-weight: 500;
  background: var(--color-primary-light);
  color: var(--color-primary-dark);
  padding: 6px 12px;
  border-radius: 999px;
}

/* ============================================
   Why Choose Us
============================================ */
.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 24px;
}
.why-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 28px;
  box-shadow: var(--shadow-sm);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.why-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }
.why-icon { font-size: 30px; display: block; margin-bottom: 14px; }
.why-card h3 { font-size: 16.5px; margin-bottom: 8px; }
.why-card p { font-size: 14.5px; color: var(--color-text-muted); }

/* ============================================
   Industries
============================================ */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.industry-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: 26px;
  text-align: left;
}
.industry-icon { font-size: 28px; display: block; margin-bottom: 12px; }
.industry-card h3 { font-size: 16px; margin-bottom: 6px; }
.industry-card p { font-size: 14px; color: var(--color-text-muted); }

/* ============================================
   Engagement Models
============================================ */
.engagement-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 20px;
}
.engagement-card {
  border-radius: var(--radius-md);
  padding: 30px 26px;
  background: linear-gradient(160deg, var(--color-primary-light), var(--color-surface));
  border: 1px solid var(--color-border);
}
.engagement-card h3 { font-size: 17px; margin-bottom: 8px; }
.engagement-card p { font-size: 14.5px; color: var(--color-text-muted); }

/* ============================================
   Vision / Mission
============================================ */
.vm-section { background: var(--gradient-hero); color: #fff; padding: 80px 0; }
.vm-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 40px;
}
.vm-card p:last-child { font-size: 19px; color: #e6eaf9; max-width: 480px; font-family: var(--font-display); font-weight: 500; }

/* ============================================
   Contact
============================================ */
.contact-intro { color: var(--color-text-muted); max-width: 640px; margin-bottom: 48px; font-size: 16px; }
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 48px;
  align-items: start;
}

.contact-form {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow-sm);
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-bottom: 20px; }
.form-field { display: flex; flex-direction: column; gap: 8px; margin-bottom: 20px; }
.form-row .form-field { margin-bottom: 0; }
.form-field label { font-size: 13.5px; font-weight: 600; color: var(--color-text); }
.form-field input, .form-field select, .form-field textarea {
  font-family: var(--font-body);
  font-size: 15px;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1.5px solid var(--color-border);
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color 0.2s ease;
}
.form-field input:focus, .form-field select:focus, .form-field textarea:focus {
  outline: none;
  border-color: var(--color-primary);
}
.contact-form .btn { margin-top: 8px; width: 100%; }
.form-status { margin-top: 14px; font-size: 14px; font-weight: 600; min-height: 20px; }
.form-status.success { color: var(--color-accent-dark); }
.form-status.error { color: #dc2626; }

.contact-details { display: flex; flex-direction: column; gap: 22px; }
.contact-detail-item { display: flex; gap: 16px; align-items: flex-start; }
.contact-detail-item span { font-size: 22px; }
.contact-detail-item strong { display: block; font-size: 14px; margin-bottom: 4px; }
.contact-detail-item a { font-size: 15px; color: var(--color-text-muted); }
.contact-detail-item a:hover { color: var(--color-primary); }
.contact-tagline {
  margin-top: 12px;
  padding-top: 22px;
  border-top: 1px solid var(--color-border);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 15.5px;
  color: var(--color-text);
}

/* ============================================
   Footer
============================================ */
.site-footer { background: #0b0e17; color: #b3bce0; padding: 48px 0; }
.footer-wrap {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.footer-brand { display: flex; align-items: center; gap: 14px; }
.footer-brand strong { color: #fff; font-family: var(--font-display); font-size: 15.5px; }
.footer-brand p { font-size: 12.5px; color: #8891ab; }
.footer-nav { display: flex; gap: 22px; flex-wrap: wrap; }
.footer-nav a { font-size: 14px; color: #b3bce0; }
.footer-nav a:hover { color: #fff; }
.footer-copy { font-size: 13px; color: #6d768f; width: 100%; text-align: center; margin-top: 8px; }

/* ============================================
   Back to top
============================================ */
.back-to-top {
  position: fixed;
  bottom: 28px;
  right: 28px;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  box-shadow: var(--shadow-md);
  opacity: 0;
  pointer-events: none;
  transform: translateY(10px);
  transition: opacity 0.25s ease, transform 0.25s ease;
  z-index: 90;
}
.back-to-top.visible { opacity: 1; pointer-events: auto; transform: translateY(0); }

/* ============================================
   Responsive
============================================ */
@media (max-width: 900px) {
  .about-grid, .contact-grid, .panel-grid { grid-template-columns: 1fr; }
  .vm-grid { grid-template-columns: 1fr; gap: 32px; }
  .offering-grid, .offering-grid.three { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (max-width: 768px) {
  .main-nav {
    position: fixed;
    top: var(--header-height);
    left: 0; right: 0;
    background: var(--color-bg);
    border-bottom: 1px solid var(--color-border);
    flex-direction: column;
    align-items: stretch;
    padding: 20px 24px 28px;
    gap: 4px;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.3s ease, opacity 0.3s ease;
  }
  .main-nav.open { transform: translateY(0); opacity: 1; }
  .main-nav a { padding: 12px 0; border-bottom: 1px solid var(--color-border); }
  .main-nav a:last-child { border-bottom: none; }
  .nav-cta { text-align: center; margin-top: 8px; }
  .nav-toggle { display: flex; }

  .nav-item { border-bottom: 1px solid var(--color-border); }
  .nav-dropdown-toggle { width: 100%; justify-content: space-between; padding: 12px 0; }
  .nav-dropdown {
    position: static;
    transform: none;
    opacity: 1;
    visibility: visible;
    box-shadow: none;
    border: none;
    padding: 0 0 8px 12px;
    min-width: 0;
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav-item.open .nav-dropdown,
  .nav-item:hover .nav-dropdown {
    transform: none;
    max-height: 260px;
  }
  .nav-dropdown a { padding: 8px 0; }

  .hero-expertise ul { grid-template-columns: 1fr; }
  .section { padding: 72px 0; }
  .form-row { grid-template-columns: 1fr; }
  .offering-grid, .offering-grid.three { grid-template-columns: 1fr; }
  .check-list.two-col { grid-template-columns: 1fr; }
}

.nav-toggle.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.active span:nth-child(2) { opacity: 0; }
.nav-toggle.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }