/* ============================================
   multiLink – Landing Page Stylesheet
   ============================================ */

/* ---------- Design Tokens ---------- */
:root {
  --color-primary:       #4F46E5;
  --color-primary-dark:  #3730A3;
  --color-primary-light: #818CF8;
  --color-accent:        #06B6D4;
  --color-bg:            #F8FAFC;
  --color-surface:       #FFFFFF;
  --color-text:          #1E293B;
  --color-text-muted:    #64748B;
  --color-border:        #E2E8F0;
  --color-gradient-start:#4F46E5;
  --color-gradient-end:  #06B6D4;

  --radius-sm:  6px;
  --radius-md:  12px;
  --radius-lg:  20px;
  --radius-full:9999px;

  --shadow-sm:  0 1px 3px rgba(0,0,0,.08), 0 1px 2px rgba(0,0,0,.04);
  --shadow-md:  0 4px 16px rgba(79,70,229,.12);
  --shadow-lg:  0 10px 40px rgba(79,70,229,.18);

  --transition: 0.25s ease;
  --max-width:  1160px;
  --nav-height: 72px;
}

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

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

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 28px;
  border-radius: var(--radius-full);
  font-size: .95rem;
  font-weight: 600;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  border: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  color: #fff;
  box-shadow: var(--shadow-md);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

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

.btn-white {
  background: #fff;
  color: var(--color-primary);
  box-shadow: var(--shadow-md);
}
.btn-white:hover { transform: translateY(-2px); box-shadow: var(--shadow-lg); }

/* ---------- Section Utility ---------- */
.section { padding: 96px 0; }
.section-label {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.6rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--color-text);
}
.section-sub {
  font-size: 1.05rem;
  color: var(--color-text-muted);
  max-width: 560px;
  margin: 16px auto 0;
}
.text-center { text-align: center; }

/* ============================================
   HEADER / NAVBAR
   ============================================ */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-height);
  background: rgba(248,250,252,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-border);
  z-index: 1000;
  transition: box-shadow var(--transition);
}
.navbar.scrolled { box-shadow: var(--shadow-sm); }

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.35rem;
  color: var(--color-primary);
}
.nav-logo .logo-icon {
  width: 36px; height: 36px;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  border-radius: var(--radius-sm);
  display: flex; align-items: center; justify-content: center;
}
.nav-logo .logo-icon svg { width: 20px; height: 20px; fill: #fff; }

/* Nav Links */
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  font-size: .92rem;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--color-primary); }

/* Nav Actions */
.nav-actions { display: flex; align-items: center; gap: 12px; }
.btn-nav-login {
  font-size: .9rem;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 8px 16px;
  border-radius: var(--radius-full);
  transition: color var(--transition);
}
.btn-nav-login:hover { color: var(--color-primary); }

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 24px; height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.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 Nav */
.mobile-nav {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--color-surface);
  border-bottom: 1px solid var(--color-border);
  padding: 12px 0 20px;
  position: fixed;
  top: var(--nav-height);
  left: 0; right: 0;
  z-index: 999;
  box-shadow: var(--shadow-md);
}
.mobile-nav.open { display: flex; }
.mobile-nav a {
  padding: 12px 24px;
  font-weight: 500;
  color: var(--color-text-muted);
  transition: color var(--transition);
}
.mobile-nav a:hover { color: var(--color-primary); }
.mobile-nav .btn { margin: 12px 24px 0; justify-content: center; }

/* ============================================
   HERO
   ============================================ */
.hero {
  padding-top: calc(var(--nav-height) + 80px);
  padding-bottom: 100px;
  background: linear-gradient(160deg, #EEF2FF 0%, #E0F2FE 100%);
  position: relative;
  overflow: hidden;
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 560px; height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(79,70,229,.15) 0%, transparent 70%);
  pointer-events: none;
}
.hero::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(6,182,212,.12) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(79,70,229,.1);
  border: 1px solid rgba(79,70,229,.2);
  color: var(--color-primary);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 6px 14px;
  border-radius: var(--radius-full);
  margin-bottom: 20px;
}
.hero-badge::before {
  content: '';
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-accent);
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.6rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -.02em;
  margin-bottom: 20px;
}
.hero-title .gradient-text {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-desc {
  font-size: 1.1rem;
  color: var(--color-text-muted);
  margin-bottom: 36px;
  max-width: 460px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; }

.hero-stats {
  display: flex;
  gap: 32px;
  margin-top: 52px;
}
.hero-stat .stat-value {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.hero-stat .stat-label {
  font-size: .8rem;
  color: var(--color-text-muted);
  margin-top: 4px;
}

/* Hero Visual */
.hero-visual {
  position: relative;
  display: flex;
  justify-content: center;
}
.hero-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  padding: 32px;
  width: 100%;
  max-width: 380px;
}
.hero-card-header {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 24px;
}
.hero-card-avatar {
  width: 40px; height: 40px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  display: flex; align-items: center; justify-content: center;
  color: #fff; font-weight: 700; font-size: .95rem;
}
.hero-card-name { font-weight: 700; font-size: .95rem; }
.hero-card-role { font-size: .78rem; color: var(--color-text-muted); }

.metric-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
  margin-bottom: 20px;
}
.metric-box {
  background: var(--color-bg);
  border-radius: var(--radius-md);
  padding: 16px;
}
.metric-box .metric-value { font-size: 1.4rem; font-weight: 800; color: var(--color-primary); }
.metric-box .metric-label { font-size: .75rem; color: var(--color-text-muted); margin-top: 2px; }

.progress-section { margin-top: 8px; }
.progress-label {
  display: flex;
  justify-content: space-between;
  font-size: .78rem;
  color: var(--color-text-muted);
  margin-bottom: 6px;
}
.progress-bar {
  height: 6px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  overflow: hidden;
  margin-bottom: 10px;
}
.progress-fill {
  height: 100%;
  border-radius: var(--radius-full);
  background: linear-gradient(90deg, var(--color-gradient-start), var(--color-gradient-end));
}

.hero-float-badge {
  position: absolute;
  background: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-md);
  padding: 10px 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: .82rem;
  font-weight: 600;
  animation: floatBadge 3s ease-in-out infinite;
}
.hero-float-badge.badge-1 { top: -18px; right: -10px; }
.hero-float-badge.badge-2 { bottom: -10px; left: -20px; animation-delay: 1.5s; }
.hero-float-badge .badge-icon { font-size: 1.1rem; }

@keyframes floatBadge {
  0%, 100% { transform: translateY(0); }
  50%       { transform: translateY(-8px); }
}

/* ============================================
   LOGOS / SOCIAL PROOF BAR
   ============================================ */
.logos-section {
  padding: 40px 0;
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}
.logos-label {
  text-align: center;
  font-size: .8rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 24px;
}
.logos-row {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 48px;
  flex-wrap: wrap;
}
.logos-row .logo-item {
  font-size: 1.1rem;
  font-weight: 800;
  color: var(--color-border);
  letter-spacing: -.02em;
  transition: color var(--transition);
}
.logos-row .logo-item:hover { color: var(--color-text-muted); }

/* ============================================
   FEATURES
   ============================================ */
.features { background: var(--color-bg); }
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 28px;
  margin-top: 56px;
}
.feature-card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  transition: transform var(--transition), box-shadow var(--transition);
}
.feature-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }

.feature-icon {
  width: 52px; height: 52px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.icon-purple { background: #EEF2FF; }
.icon-cyan   { background: #ECFEFF; }
.icon-green  { background: #F0FDF4; }
.icon-orange { background: #FFF7ED; }

.feature-card h3 { font-size: 1.1rem; font-weight: 700; margin-bottom: 10px; }
.feature-card p  { font-size: .92rem; color: var(--color-text-muted); line-height: 1.65; }

/* ============================================
   TESTIMONIALS
   ============================================ */
.testimonials { background: linear-gradient(160deg, #EEF2FF 0%, #E0F2FE 100%); }
.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 56px;
}
.testimonial-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
}
.testimonial-card:hover { transform: translateY(-4px); box-shadow: var(--shadow-md); }

.stars { color: #F59E0B; font-size: 1rem; letter-spacing: 2px; margin-bottom: 16px; }
.testimonial-card blockquote {
  font-size: .97rem;
  color: var(--color-text);
  line-height: 1.7;
  margin-bottom: 24px;
  font-style: italic;
}
.testimonial-author {
  display: flex;
  align-items: center;
  gap: 12px;
}
.author-avatar {
  width: 44px; height: 44px;
  border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; color: #fff; font-size: .95rem;
  flex-shrink: 0;
}
.avatar-indigo { background: linear-gradient(135deg, #4F46E5, #818CF8); }
.avatar-cyan   { background: linear-gradient(135deg, #06B6D4, #67E8F9); }
.avatar-violet { background: linear-gradient(135deg, #7C3AED, #A78BFA); }

.author-name { font-weight: 700; font-size: .92rem; }
.author-role { font-size: .78rem; color: var(--color-text-muted); }

/* ============================================
   PRICING
   ============================================ */
.pricing { background: var(--color-surface); }
.pricing-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  margin-top: 32px;
  font-size: .9rem;
  font-weight: 600;
}
.toggle-switch {
  position: relative;
  width: 48px; height: 26px;
  background: var(--color-border);
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: background var(--transition);
  border: none;
}
.toggle-switch.active { background: var(--color-primary); }
.toggle-switch::after {
  content: '';
  position: absolute;
  top: 3px; left: 3px;
  width: 20px; height: 20px;
  background: #fff;
  border-radius: 50%;
  transition: transform var(--transition);
  box-shadow: var(--shadow-sm);
}
.toggle-switch.active::after { transform: translateX(22px); }
.save-badge {
  background: #D1FAE5;
  color: #065F46;
  font-size: .72rem;
  font-weight: 700;
  padding: 3px 8px;
  border-radius: var(--radius-full);
}

.pricing-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  margin-top: 48px;
  align-items: start;
}

.pricing-card {
  background: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  transition: transform var(--transition), box-shadow var(--transition);
  position: relative;
}
.pricing-card:hover { transform: translateY(-6px); box-shadow: var(--shadow-lg); }
.pricing-card.popular {
  background: var(--color-surface);
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg);
  transform: translateY(-8px);
}
.pricing-card.popular:hover { transform: translateY(-14px); }

.popular-badge {
  position: absolute;
  top: -13px; left: 50%;
  transform: translateX(-50%);
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
  color: #fff;
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: 5px 16px;
  border-radius: var(--radius-full);
  white-space: nowrap;
}

.plan-name { font-size: .85rem; font-weight: 700; text-transform: uppercase; letter-spacing: .1em; color: var(--color-primary); }
.plan-price {
  margin: 16px 0 6px;
  display: flex;
  align-items: flex-end;
  gap: 4px;
}
.price-amount { font-size: 3rem; font-weight: 900; line-height: 1; }
.price-period { font-size: .85rem; color: var(--color-text-muted); margin-bottom: 6px; }
.plan-desc { font-size: .88rem; color: var(--color-text-muted); margin-bottom: 24px; line-height: 1.6; }

.plan-features { margin-bottom: 28px; }
.plan-features li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  font-size: .88rem;
  padding: 6px 0;
  color: var(--color-text);
}
.plan-features .check {
  color: #22C55E;
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
}
.plan-features .cross {
  color: var(--color-border);
  font-size: 1rem;
  flex-shrink: 0;
  margin-top: 1px;
}
.plan-features .muted { color: var(--color-text-muted); }

/* ============================================
   FINAL CTA
   ============================================ */
.cta-section {
  background: linear-gradient(135deg, var(--color-gradient-start) 0%, var(--color-gradient-end) 100%);
  padding: 100px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.cta-section::before {
  content: '';
  position: absolute; inset: 0;
  background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.04'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
  pointer-events: none;
}
.cta-section .section-title { color: #fff; position: relative; z-index: 1; }
.cta-section .section-sub   { color: rgba(255,255,255,.8); position: relative; z-index: 1; }

.cta-actions {
  display: flex;
  justify-content: center;
  gap: 14px;
  flex-wrap: wrap;
  margin-top: 36px;
  position: relative;
  z-index: 1;
}
.cta-note {
  font-size: .82rem;
  color: rgba(255,255,255,.65);
  margin-top: 16px;
  position: relative;
  z-index: 1;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
  background: #0F172A;
  color: #94A3B8;
  padding: 72px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.8fr 1fr 1fr 1fr;
  gap: 40px;
  padding-bottom: 48px;
  border-bottom: 1px solid #1E293B;
}
.footer-brand .nav-logo { color: #fff; margin-bottom: 16px; }
.footer-brand p { font-size: .88rem; line-height: 1.7; max-width: 260px; }
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}
.social-link {
  width: 36px; height: 36px;
  border-radius: var(--radius-sm);
  background: #1E293B;
  display: flex; align-items: center; justify-content: center;
  transition: background var(--transition), transform var(--transition);
  font-size: .9rem;
}
.social-link:hover { background: var(--color-primary); transform: translateY(-2px); }

.footer-col h4 { font-size: .85rem; font-weight: 700; color: #fff; letter-spacing: .08em; text-transform: uppercase; margin-bottom: 20px; }
.footer-col ul { display: flex; flex-direction: column; gap: 10px; }
.footer-col ul li a {
  font-size: .88rem;
  color: #64748B;
  transition: color var(--transition);
}
.footer-col ul li a:hover { color: var(--color-primary-light); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 28px;
  font-size: .82rem;
}
.footer-bottom a { color: #64748B; transition: color var(--transition); }
.footer-bottom a:hover { color: var(--color-primary-light); }

/* ============================================
   HOW IT WORKS
   ============================================ */
.how-it-works { background: var(--color-surface); }

.hiw-flow {
  display: flex;
  align-items: flex-start;
  justify-content: center;
  gap: 0;
  margin-top: 56px;
  flex-wrap: wrap;
}

.hiw-step {
  flex: 1;
  min-width: 220px;
  max-width: 300px;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: 0 8px;
}

.hiw-center .hiw-icon-wrap { box-shadow: var(--shadow-lg); }

.hiw-icon-wrap {
  width: 64px; height: 64px;
  border-radius: var(--radius-md);
  display: flex; align-items: center; justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 12px;
  flex-shrink: 0;
}
.icon-gradient {
  background: linear-gradient(135deg, var(--color-gradient-start), var(--color-gradient-end));
}

.hiw-step-num {
  font-size: .7rem;
  font-weight: 800;
  letter-spacing: .14em;
  color: var(--color-primary-light);
  text-transform: uppercase;
  margin-bottom: 10px;
}
.hiw-step h3 { font-size: 1rem; font-weight: 700; margin-bottom: 10px; }
.hiw-step p  { font-size: .88rem; color: var(--color-text-muted); line-height: 1.65; }

/* Protocol tags (input side) */
.hiw-tags {
  display: flex;
  gap: 6px;
  flex-wrap: wrap;
  justify-content: center;
  margin-top: 14px;
}
.proto-tag {
  font-size: .72rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: var(--radius-full);
}
.tag-serial  { background: #FFF7ED; color: #C2410C; }
.tag-ml      { background: #EEF2FF; color: var(--color-primary); }

/* Arrow between steps */
.hiw-arrow {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-primary-light);
  padding: 0 4px;
  margin-top: 64px;
  flex-shrink: 0;
}

/* Output pills (step 3) */
.hiw-outputs {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-top: 14px;
  width: 100%;
}
.output-pill {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 10px 14px;
  border-radius: var(--radius-md);
  text-align: left;
  border: 1px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition);
}
.output-pill:hover { transform: translateX(4px); box-shadow: var(--shadow-sm); }

.pill-icon { font-size: 1.1rem; flex-shrink: 0; }
.pill-name { font-size: .85rem; font-weight: 700; line-height: 1.2; }
.pill-desc { font-size: .72rem; color: var(--color-text-muted); }

.pill-mqtt    { background: #F0FDF4; border-color: #BBF7D0; }
.pill-signalr { background: #EEF2FF; border-color: #C7D2FE; }
.pill-webhook { background: #ECFEFF; border-color: #A5F3FC; }
.pill-serial  { background: #FFF7ED; border-color: #FED7AA; }

/* ============================================
   RESPONSIVE
   ============================================ */
/* Responsive – hide hiw arrows on small screens */
@media (max-width: 900px) {
  .nav-links, .nav-actions { display: none; }
  .hamburger { display: flex; }

  .hero-content { grid-template-columns: 1fr; gap: 40px; text-align: center; }
  .hero-desc { max-width: 100%; }
  .hero-actions { justify-content: center; }
  .hero-stats { justify-content: center; }
  .hero-visual { display: none; }

  .hiw-flow { flex-direction: column; align-items: center; }
  .hiw-arrow { transform: rotate(90deg); margin: 0; }
  .hiw-step  { max-width: 100%; padding: 0 0 8px; }

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

@media (max-width: 600px) {
  .section { padding: 64px 0; }
  .pricing-card.popular { transform: none; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
  .hero-stats { flex-direction: column; gap: 16px; align-items: center; }
}