/* ============================================
   SekharLee AI — Global Stylesheet
   ============================================ */

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

:root {
  --primary:      #0057FF;
  --primary-dark: #003FBB;
  --primary-light:#EEF3FF;
  --accent:       #00C2FF;
  --dark:         #0D1117;
  --dark-2:       #161B22;
  --gray-700:     #374151;
  --gray-500:     #6B7280;
  --gray-300:     #D1D5DB;
  --gray-100:     #F3F4F6;
  --white:        #FFFFFF;
  --success:      #10B981;
  --radius-sm:    6px;
  --radius:       12px;
  --radius-lg:    20px;
  --shadow-sm:    0 1px 3px rgba(0,0,0,.08);
  --shadow:       0 4px 20px rgba(0,0,0,.10);
  --shadow-lg:    0 12px 48px rgba(0,0,0,.16);
  --transition:   .25s ease;
  --max-w:        1180px;
}

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', sans-serif;
  background: var(--white);
  color: var(--dark);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; display: block; }
a  { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ── Typography ── */
h1,h2,h3,h4,h5 { line-height: 1.2; font-weight: 700; }
h1 { font-size: clamp(2.2rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); }
h3 { font-size: clamp(1.2rem, 2vw, 1.5rem); }
h4 { font-size: 1.1rem; }
p  { color: var(--gray-700); }

.section-label {
  display: inline-block;
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-light);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 1rem;
}

.section-title { margin-bottom: .75rem; }
.section-sub   { max-width: 600px; color: var(--gray-500); font-size: 1.05rem; }

/* ── Layout Helpers ── */
.container { max-width: var(--max-w); margin: 0 auto; padding: 0 24px; }
.section   { padding: 96px 0; }
.section-alt { background: var(--gray-100); }
.text-center { text-align: center; }
.text-center .section-sub { margin-left: auto; margin-right: auto; }

.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 32px; }
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 32px; }
.grid-4 { display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px; }
.flex   { display: flex; }
.flex-center { display: flex; align-items: center; justify-content: center; }
.gap-2  { gap: 16px; }
.gap-3  { gap: 24px; }
.mt-2   { margin-top: 16px; }
.mt-4   { margin-top: 32px; }
.mt-6   { margin-top: 48px; }
.mb-4   { margin-bottom: 32px; }

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 28px;
  border-radius: var(--radius-sm);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  border: none;
  transition: var(--transition);
  white-space: nowrap;
}
.btn-primary {
  background: var(--primary);
  color: var(--white);
}
.btn-primary:hover { background: var(--primary-dark); transform: translateY(-1px); box-shadow: 0 6px 24px rgba(0,87,255,.30); }

.btn-outline {
  background: transparent;
  color: var(--primary);
  border: 2px solid var(--primary);
}
.btn-outline:hover { background: var(--primary); color: var(--white); transform: translateY(-1px); }

.btn-white {
  background: var(--white);
  color: var(--primary);
}
.btn-white:hover { background: var(--primary-light); transform: translateY(-1px); }

.btn-ghost {
  background: transparent;
  color: var(--white);
  border: 2px solid rgba(255,255,255,.4);
}
.btn-ghost:hover { background: rgba(255,255,255,.1); border-color: var(--white); }

.btn-lg { padding: 16px 36px; font-size: 1rem; border-radius: var(--radius-sm); }

/* ── Navigation ── */
.nav {
  position: sticky;
  top: 0;
  z-index: 1000;
  background: rgba(255,255,255,.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--gray-300);
  transition: box-shadow var(--transition);
}
.nav.scrolled { box-shadow: var(--shadow); }

.nav-inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 24px;
  height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 1.25rem;
  font-weight: 800;
  color: var(--dark);
}

.nav-logo-icon {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: .9rem;
  font-weight: 800;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: .92rem;
  font-weight: 500;
  color: var(--gray-700);
  transition: color var(--transition);
}
.nav-links a:hover, .nav-links a.active { color: var(--primary); }

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

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--dark);
  transition: var(--transition);
  border-radius: 2px;
}
.hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 68px 0 0 0;
  background: var(--white);
  padding: 24px;
  flex-direction: column;
  gap: 20px;
  border-top: 1px solid var(--gray-300);
  z-index: 999;
  overflow-y: auto;
}
.mobile-menu.open { display: flex; }
.mobile-menu a { font-size: 1.1rem; font-weight: 600; color: var(--dark); padding: 8px 0; border-bottom: 1px solid var(--gray-100); }
.mobile-menu a:hover { color: var(--primary); }

/* ── Hero ── */
.hero {
  background: linear-gradient(135deg, var(--dark) 0%, #1a2744 60%, var(--dark-2) 100%);
  padding: 120px 0 100px;
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  width: 700px; height: 700px;
  background: radial-gradient(circle, rgba(0,87,255,.18) 0%, transparent 70%);
  top: -200px; right: -100px;
  border-radius: 50%;
}
.hero::after {
  content: '';
  position: absolute;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(0,194,255,.12) 0%, transparent 70%);
  bottom: -150px; left: -50px;
  border-radius: 50%;
}
.hero .container { position: relative; z-index: 1; }
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(0,87,255,.15);
  border: 1px solid rgba(0,87,255,.3);
  color: var(--accent);
  font-size: .82rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
}
.hero-badge .dot { width: 6px; height: 6px; background: var(--accent); border-radius: 50%; }
.hero h1 { color: var(--white); max-width: 800px; margin-bottom: 20px; }
.hero h1 span { background: linear-gradient(90deg, var(--accent), var(--primary)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-sub { font-size: 1.15rem; color: rgba(255,255,255,.7); max-width: 580px; margin-bottom: 40px; }
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 48px;
  margin-top: 72px;
  padding-top: 48px;
  border-top: 1px solid rgba(255,255,255,.1);
  flex-wrap: wrap;
}
.hero-stat-num { font-size: 2.2rem; font-weight: 800; color: var(--white); }
.hero-stat-num span { color: var(--accent); }
.hero-stat-label { font-size: .88rem; color: rgba(255,255,255,.55); margin-top: 4px; }

/* ── Service Cards ── */
.service-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}
.service-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: var(--primary); }

.service-icon {
  width: 52px; height: 52px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.service-card h3 { margin-bottom: 10px; color: var(--dark); }
.service-card p  { font-size: .93rem; }

/* ── Feature Cards ── */
.feature-card {
  display: flex;
  gap: 20px;
  padding: 28px;
  border-radius: var(--radius);
  background: var(--white);
  border: 1px solid var(--gray-300);
  transition: var(--transition);
}
.feature-card:hover { box-shadow: var(--shadow); border-color: var(--primary); }

.feature-icon {
  flex-shrink: 0;
  width: 44px; height: 44px;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  color: var(--primary);
}
.feature-card h4 { margin-bottom: 6px; color: var(--dark); }
.feature-card p  { font-size: .9rem; }

/* ── Industry Pills ── */
.industry-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 20px;
}
.industry-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 28px 16px;
  text-align: center;
  transition: var(--transition);
}
.industry-card:hover { background: var(--primary); border-color: var(--primary); color: var(--white); transform: translateY(-3px); box-shadow: var(--shadow); }
.industry-card:hover p { color: rgba(255,255,255,.85); }
.industry-card .ind-icon { font-size: 2.2rem; margin-bottom: 12px; }
.industry-card h4 { font-size: .95rem; margin-bottom: 4px; }
.industry-card p  { font-size: .82rem; color: var(--gray-500); }

/* ── Process Steps ── */
.process-steps { counter-reset: step; }
.process-step  {
  display: flex;
  gap: 24px;
  padding: 28px;
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  transition: var(--transition);
  position: relative;
}
.process-step::before {
  counter-increment: step;
  content: counter(step, decimal-leading-zero);
  position: absolute;
  top: -12px; left: 28px;
  font-size: .78rem;
  font-weight: 700;
  background: var(--primary);
  color: white;
  padding: 2px 10px;
  border-radius: 100px;
}
.process-step:hover { box-shadow: var(--shadow); border-color: var(--primary); }
.ps-icon {
  width: 48px; height: 48px;
  flex-shrink: 0;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
}
.process-step h4 { margin-bottom: 6px; }
.process-step p  { font-size: .9rem; }

/* ── Testimonials ── */
.testimonials-bg {
  background: linear-gradient(135deg, var(--dark), #1a2744);
}
.testimonial-card {
  background: rgba(255,255,255,.05);
  border: 1px solid rgba(255,255,255,.1);
  border-radius: var(--radius);
  padding: 32px;
  transition: var(--transition);
}
.testimonial-card:hover { background: rgba(255,255,255,.09); border-color: rgba(0,87,255,.4); }
.stars { color: #FBBF24; font-size: 1.1rem; margin-bottom: 16px; }
.testimonial-card blockquote { color: rgba(255,255,255,.85); font-size: .95rem; line-height: 1.7; margin-bottom: 24px; font-style: italic; }
.t-author { display: flex; align-items: center; gap: 14px; }
.t-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: white; font-size: .95rem;
}
.t-name  { font-weight: 600; color: var(--white); font-size: .95rem; }
.t-role  { font-size: .82rem; color: rgba(255,255,255,.5); }

/* ── FAQ ── */
.faq-item {
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-sm);
  overflow: hidden;
  margin-bottom: 12px;
}
.faq-question {
  width: 100%;
  text-align: left;
  padding: 20px 24px;
  background: var(--white);
  border: none;
  font-size: .97rem;
  font-weight: 600;
  color: var(--dark);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  transition: var(--transition);
  font-family: 'Inter', sans-serif;
}
.faq-question:hover { background: var(--gray-100); }
.faq-question.open  { color: var(--primary); }
.faq-chevron { font-size: 1.1rem; transition: transform var(--transition); }
.faq-question.open .faq-chevron { transform: rotate(180deg); }

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height .35s ease, padding .35s ease;
  background: var(--gray-100);
}
.faq-answer.open { max-height: 300px; }
.faq-answer p { padding: 16px 24px; color: var(--gray-700); font-size: .93rem; }

/* ── CTA Banner ── */
.cta-banner {
  background: linear-gradient(135deg, var(--primary), var(--primary-dark));
  border-radius: var(--radius-lg);
  padding: 64px 56px;
  text-align: center;
}
.cta-banner h2 { color: var(--white); margin-bottom: 16px; }
.cta-banner p  { color: rgba(255,255,255,.8); max-width: 560px; margin: 0 auto 36px; font-size: 1.05rem; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

/* ── Footer ── */
footer {
  background: var(--dark);
  color: rgba(255,255,255,.75);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1.2fr;
  gap: 48px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255,255,255,.1);
}
.footer-brand p { font-size: .9rem; line-height: 1.7; margin: 16px 0 24px; color: rgba(255,255,255,.55); max-width: 300px; }
.footer-social { display: flex; gap: 12px; }
.social-btn {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: rgba(255,255,255,.08);
  display: flex; align-items: center; justify-content: center;
  font-size: .9rem;
  transition: var(--transition);
  cursor: pointer;
}
.social-btn:hover { background: var(--primary); }
.footer-col h5 { color: var(--white); font-size: .92rem; margin-bottom: 16px; font-weight: 600; }
.footer-col ul li { margin-bottom: 10px; }
.footer-col ul a { font-size: .88rem; color: rgba(255,255,255,.55); transition: color var(--transition); }
.footer-col ul a:hover { color: var(--white); }
.footer-contact-item { display: flex; gap: 10px; align-items: flex-start; margin-bottom: 14px; }
.footer-contact-item .icon { color: var(--accent); font-size: .9rem; margin-top: 2px; }
.footer-contact-item span { font-size: .87rem; color: rgba(255,255,255,.55); }
.footer-bottom {
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p, .footer-bottom a { font-size: .82rem; color: rgba(255,255,255,.4); }
.footer-bottom a:hover { color: var(--white); }
.footer-bottom-links { display: flex; gap: 24px; }

/* ── About Page ── */
.about-hero {
  background: linear-gradient(135deg, var(--dark) 0%, #1a2744 100%);
  padding: 100px 0 80px;
  color: var(--white);
}
.about-hero .section-label { background: rgba(0,87,255,.2); color: var(--accent); }
.about-hero h1 { color: var(--white); max-width: 700px; margin-bottom: 20px; }
.about-hero p { color: rgba(255,255,255,.75); max-width: 600px; font-size: 1.05rem; }

.value-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 32px;
  border-top: 3px solid var(--primary);
  transition: var(--transition);
}
.value-card:hover { box-shadow: var(--shadow); transform: translateY(-3px); }
.value-icon { font-size: 2rem; margin-bottom: 16px; }
.value-card h3 { margin-bottom: 10px; }

.team-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  overflow: hidden;
  text-align: center;
  transition: var(--transition);
}
.team-card:hover { box-shadow: var(--shadow-lg); transform: translateY(-4px); }
.team-avatar {
  height: 160px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  display: flex; align-items: center; justify-content: center;
  font-size: 3rem;
  font-weight: 800;
  color: white;
}
.team-info { padding: 24px; }
.team-info h4 { margin-bottom: 4px; }
.team-role { font-size: .85rem; color: var(--primary); font-weight: 600; margin-bottom: 10px; }
.team-bio  { font-size: .88rem; color: var(--gray-500); }

.stat-box {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius);
  padding: 32px;
  text-align: center;
  transition: var(--transition);
}
.stat-box:hover { box-shadow: var(--shadow); border-color: var(--primary); }
.stat-box .num { font-size: 2.8rem; font-weight: 800; color: var(--primary); }
.stat-box .label { font-size: .9rem; color: var(--gray-500); margin-top: 6px; }

/* ── Services Page ── */
.services-hero {
  background: linear-gradient(135deg, var(--dark) 0%, #1a2744 100%);
  padding: 100px 0 80px;
  color: var(--white);
}
.services-hero .section-label { background: rgba(0,87,255,.2); color: var(--accent); }
.services-hero h1 { color: var(--white); max-width: 700px; margin-bottom: 20px; }
.services-hero p { color: rgba(255,255,255,.75); max-width: 600px; font-size: 1.05rem; }

.service-detail-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-lg);
  padding: 40px;
  transition: var(--transition);
}
.service-detail-card:hover { box-shadow: var(--shadow-lg); border-color: var(--primary); }
.sdc-header { display: flex; gap: 20px; align-items: flex-start; margin-bottom: 20px; }
.sdc-icon {
  width: 60px; height: 60px; flex-shrink: 0;
  background: var(--primary-light);
  border-radius: var(--radius);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
}
.sdc-header h3 { margin-bottom: 4px; }
.sdc-header .tag {
  display: inline-block;
  font-size: .72rem;
  font-weight: 600;
  background: var(--primary-light);
  color: var(--primary);
  padding: 3px 10px;
  border-radius: 100px;
}
.sdc-features { margin-top: 24px; }
.sdc-features li {
  display: flex; align-items: center; gap: 10px;
  font-size: .9rem; color: var(--gray-700);
  padding: 8px 0;
  border-bottom: 1px solid var(--gray-100);
}
.sdc-features li:last-child { border: none; }
.sdc-features li::before { content: '✓'; color: var(--success); font-weight: 700; }

/* ── Contact Page ── */
.contact-hero {
  background: linear-gradient(135deg, var(--dark) 0%, #1a2744 100%);
  padding: 80px 0 60px;
  color: var(--white);
}
.contact-hero h1 { color: var(--white); margin-bottom: 16px; }
.contact-hero p  { color: rgba(255,255,255,.7); font-size: 1.05rem; }

.contact-layout { display: grid; grid-template-columns: 1fr 1.6fr; gap: 48px; align-items: start; }

.contact-info-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-lg);
  padding: 36px;
}
.contact-info-card h3 { margin-bottom: 8px; }
.contact-info-card > p { margin-bottom: 28px; font-size: .93rem; }

.c-info-item {
  display: flex; gap: 16px; align-items: flex-start;
  margin-bottom: 24px;
}
.c-info-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  background: var(--primary-light);
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; color: var(--primary);
}
.c-info-label { font-size: .8rem; font-weight: 600; text-transform: uppercase; letter-spacing: .08em; color: var(--gray-500); margin-bottom: 2px; }
.c-info-value a { font-size: .92rem; color: var(--dark); font-weight: 500; }
.c-info-value a:hover { color: var(--primary); }

.contact-form-card {
  background: var(--white);
  border: 1px solid var(--gray-300);
  border-radius: var(--radius-lg);
  padding: 40px;
}
.contact-form-card h3 { margin-bottom: 8px; }
.contact-form-card > p { margin-bottom: 28px; font-size: .93rem; }

.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; }

.form-group { margin-bottom: 20px; }
.form-group label { display: block; font-size: .87rem; font-weight: 600; color: var(--dark); margin-bottom: 6px; }
.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid var(--gray-300);
  border-radius: var(--radius-sm);
  font-size: .93rem;
  color: var(--dark);
  background: var(--white);
  font-family: 'Inter', sans-serif;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(0,87,255,.12);
}
.form-group textarea { resize: vertical; min-height: 130px; }
.form-success {
  display: none;
  background: #D1FAE5;
  border: 1px solid var(--success);
  border-radius: var(--radius-sm);
  padding: 16px 20px;
  color: #065F46;
  font-size: .93rem;
  font-weight: 500;
  margin-top: 16px;
}
.form-success.show { display: block; }

/* ── Page Content (Privacy/Terms) ── */
.page-hero {
  background: linear-gradient(135deg, var(--dark) 0%, #1a2744 100%);
  padding: 80px 0 60px;
}
.page-hero h1 { color: var(--white); margin-bottom: 12px; }
.page-hero p  { color: rgba(255,255,255,.6); }

.legal-body { max-width: 820px; margin: 0 auto; }
.legal-body h2 { font-size: 1.35rem; color: var(--dark); margin: 44px 0 14px; padding-bottom: 10px; border-bottom: 2px solid var(--primary-light); }
.legal-body h3 { font-size: 1.05rem; margin: 24px 0 10px; color: var(--dark); }
.legal-body p  { margin-bottom: 16px; font-size: .95rem; }
.legal-body ul { margin: 12px 0 20px 0; }
.legal-body ul li { padding: 5px 0 5px 24px; position: relative; font-size: .93rem; color: var(--gray-700); }
.legal-body ul li::before { content: '•'; position: absolute; left: 8px; color: var(--primary); }
.legal-updated { background: var(--primary-light); border-left: 3px solid var(--primary); padding: 12px 16px; border-radius: 0 var(--radius-sm) var(--radius-sm) 0; margin-bottom: 32px; font-size: .88rem; color: var(--gray-700); }

/* ── Animations ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fade-up { animation: fadeUp .6s ease both; }
.fade-up.d1 { animation-delay: .1s; }
.fade-up.d2 { animation-delay: .2s; }
.fade-up.d3 { animation-delay: .3s; }

[data-animate] { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
[data-animate].visible { opacity: 1; transform: none; }

/* ── Responsive ── */
@media (max-width: 1024px) {
  .grid-4       { grid-template-columns: repeat(2, 1fr); }
  .industry-grid { grid-template-columns: repeat(3, 1fr); }
  .footer-grid  { grid-template-columns: 1fr 1fr; gap: 36px; }
}

@media (max-width: 768px) {
  .section { padding: 64px 0; }
  .grid-2, .grid-3 { grid-template-columns: 1fr; }
  .industry-grid   { grid-template-columns: repeat(2, 1fr); }
  .nav-links, .nav-cta { display: none; }
  .hamburger { display: flex; }
  .hero { padding: 80px 0 64px; }
  .hero-stats { gap: 28px; }
  .cta-banner { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .industry-grid { grid-template-columns: repeat(2, 1fr); }
  .grid-4 { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .cta-actions { flex-direction: column; align-items: center; }
  .footer-bottom { flex-direction: column; text-align: center; }
}