*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --teal:        #5BBFAD;
  --teal-dark:   #3FA898;
  --teal-light:  #E8F7F5;
  --teal-xlight: #F2FAFA;
  --gray:        #3D3D3D;
  --gray-mid:    #6B7280;
  --gray-light:  #9CA3AF;
  --gray-border: #E5E7EB;
  --bg:          #F8FAF9;
  --white:       #FFFFFF;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.08);
  --shadow-md:   0 4px 16px rgba(0,0,0,.10);
  --shadow-lg:   0 12px 40px rgba(0,0,0,.12);
  --radius:      12px;
  --radius-lg:   20px;
}

/* ─── DARK MODE ─────────────────────────────── */
[data-theme="dark"] {
  --teal-light:  rgba(91,191,173,.18);
  --teal-xlight: rgba(91,191,173,.08);
  --gray:        #E2E8F0;
  --gray-mid:    #94A3B8;
  --gray-light:  #64748B;
  --gray-border: #2D3748;
  --bg:          #0F1623;
  --white:       #1A2232;
  --shadow-sm:   0 1px 3px rgba(0,0,0,.35);
  --shadow-md:   0 4px 16px rgba(0,0,0,.45);
  --shadow-lg:   0 12px 40px rgba(0,0,0,.55);
}
[data-theme="dark"] body          { background: #0F1623; }
[data-theme="dark"] nav           { background: rgba(15,22,35,.92); }
[data-theme="dark"] .nav-drawer   { border-top-color: #2D3748; }
[data-theme="dark"] .hero         { background: linear-gradient(160deg,#0D1520 0%,#111827 55%,#0F1623 100%); }
[data-theme="dark"] .hc-actions   { background: #141D2E; }
[data-theme="dark"] .quote-table td { border-bottom-color: #2D3748; }
[data-theme="dark"] .quote-badge  { background: rgba(91,191,173,.18); }
[data-theme="dark"] .modules-section { background: #0F1623; }
[data-theme="dark"] .cta-section  { background: #0F1623; }
[data-theme="dark"] footer        { background: #0A0F1A; }
[data-theme="dark"] .pc-icon      { background: rgba(239,68,68,.15); }
[data-theme="dark"] .pc-icon.warn { background: rgba(245,158,11,.15); }
[data-theme="dark"] .pc-icon.info { background: rgba(59,130,246,.15); }
[data-theme="dark"] .btn-secondary { color: #E2E8F0; border-color: #2D3748; }

[data-theme="dark"] .hc-btn-secondary { background: #2D3748; color: #E2E8F0; }

/* theme toggle button */
.theme-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 8px;
  border: 1px solid var(--gray-border);
  background: transparent;
  cursor: pointer;
  color: var(--gray-mid);
  transition: border-color .2s, color .2s, background .2s;
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--teal); color: var(--teal); }
.theme-toggle svg { width: 16px; height: 16px; }
.lang-switch {
  display: flex;
  align-items: center;
  justify-content: center;
  height: 34px;
  padding: 0 10px;
  border-radius: 8px;
  border: 1px solid var(--gray-border);
  color: var(--gray-mid);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .04em;
  text-decoration: none;
  transition: border-color .2s, color .2s;
  flex-shrink: 0;
}
.lang-switch:hover { border-color: var(--teal); color: var(--teal); }
.icon-sun  { display: none; }
.icon-moon { display: block; }
[data-theme="dark"] .icon-sun  { display: block; }
[data-theme="dark"] .icon-moon { display: none; }

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', sans-serif;
  color: var(--gray);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  transition: background .3s, color .3s;
}

/* ─── UTILS ─────────────────────────────────── */
.container { max-width: 1160px; margin: 0 auto; padding: 0 24px; }
.badge {
  display: inline-block;
  background: var(--teal-light);
  color: var(--teal-dark);
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .06em;
  text-transform: uppercase;
  padding: 4px 14px;
  border-radius: 999px;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.75rem, 3.5vw, 2.5rem);
  font-weight: 800;
  line-height: 1.2;
  color: var(--gray);
}
.section-sub {
  font-size: 1.05rem;
  color: var(--gray-mid);
  max-width: 560px;
  margin-top: 14px;
}
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--teal);
  color: var(--white);
  font-weight: 600;
  font-size: .95rem;
  padding: 14px 28px;
  border-radius: var(--radius);
  text-decoration: none;
  border: none;
  cursor: pointer;
  transition: background .2s, transform .15s, box-shadow .2s;
  box-shadow: 0 4px 14px rgba(91,191,173,.40);
}
.btn-primary:hover { background: var(--teal-dark); transform: translateY(-1px); box-shadow: 0 6px 20px rgba(91,191,173,.45); }
.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: transparent;
  color: var(--gray);
  font-weight: 600;
  font-size: .95rem;
  padding: 13px 26px;
  border-radius: var(--radius);
  text-decoration: none;
  border: 2px solid var(--gray-border);
  cursor: pointer;
  transition: border-color .2s, color .2s;
}
.btn-secondary:hover { border-color: var(--teal); color: var(--teal); }

/* ─── NAVBAR ─────────────────────────────────── */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255,255,255,.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--gray-border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}
.nav-logo-icon {
  width: 38px;
  height: 38px;
}
.nav-logo-text {
  font-size: 1.15rem;
  font-weight: 800;
  color: var(--gray);
}
.nav-logo-text span { color: var(--teal); }
.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
  list-style: none;
}
.nav-links a {
  font-size: .9rem;
  font-weight: 500;
  color: var(--gray-mid);
  text-decoration: none;
  transition: color .2s;
}
.nav-links a:hover { color: var(--teal); }
.nav-cta { display: flex; align-items: center; gap: 12px; }
.nav-cta a.signin {
  font-size: .9rem;
  font-weight: 500;
  color: var(--gray-mid);
  text-decoration: none;
  transition: color .2s;
}
.nav-cta a.signin:hover { color: var(--teal); }
.nav-cta .btn-primary { padding: 10px 20px; font-size: .875rem; }

/* hamburger */
.nav-hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 36px; height: 36px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.nav-hamburger span {
  display: block;
  width: 22px; height: 2px;
  background: var(--gray);
  border-radius: 2px;
  transition: transform .25s, opacity .25s;
}
.nav-hamburger.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-hamburger.open span:nth-child(2) { opacity: 0; }
.nav-hamburger.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* mobile drawer */
.nav-drawer {
  display: none;
  flex-direction: column;
  gap: 0;
  background: var(--white);
  border-top: 1px solid var(--gray-border);
  padding: 8px 0 16px;
}
.nav-drawer.open { display: flex; }
.nav-drawer a {
  font-size: .95rem;
  font-weight: 500;
  color: var(--gray-mid);
  text-decoration: none;
  padding: 12px 24px;
  transition: color .2s, background .2s;
}
.nav-drawer a:hover { color: var(--teal); background: var(--teal-xlight); }
.nav-drawer .drawer-cta {
  margin: 8px 24px 0;
}
.nav-drawer .drawer-cta .btn-primary { width: 100%; justify-content: center; color: var(--white); background: var(--teal); }
.nav-drawer .drawer-cta .btn-primary:hover { color: var(--white); background: var(--teal-dark); }

/* ─── HERO ───────────────────────────────────── */
.hero {
  background: linear-gradient(160deg, #F2FAFA 0%, #FFFFFF 55%, #F8FAF9 100%);
  padding: 96px 0 80px;
  overflow: hidden;
  position: relative;
}
.hero::before {
  content: '';
  position: absolute;
  top: -120px; right: -120px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(91,191,173,.12) 0%, transparent 70%);
  pointer-events: none;
}
.hero-inner {
  max-width: 720px;
  margin: 0 auto;
  text-align: center;
}
.hero-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--teal-light);
  color: var(--teal-dark);
  font-size: .8rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 24px;
}
.hero-eyebrow svg { width: 14px; height: 14px; }
.hero h1 {
  font-size: clamp(2.25rem, 4.5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  color: var(--gray);
  margin-bottom: 24px;
}
.hero h1 .highlight {
  color: var(--teal);
  position: relative;
}
.hero-desc {
  font-size: 1.1rem;
  color: var(--gray-mid);
  line-height: 1.7;
  margin-bottom: 36px;
  max-width: 560px;
  margin-left: auto;
  margin-right: auto;
}
.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; align-items: center; justify-content: center; }

/* hero visual */
.hero-visual { position: relative; }
.hero-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.hc-topbar {
  background: var(--gray);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.hc-dot { width: 10px; height: 10px; border-radius: 50%; }
.hc-dot-r { background: #FF5F57; }
.hc-dot-y { background: #FFBD2E; }
.hc-dot-g { background: #28C840; }
.hc-title { color: rgba(255,255,255,.6); font-size: .78rem; margin-left: 8px; }
.hc-body { padding: 24px; }
.quote-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}
.quote-company { font-weight: 700; font-size: 1rem; color: var(--gray); }
.quote-company small { display: block; font-weight: 400; font-size: .75rem; color: var(--gray-light); margin-top: 2px; }
.quote-badge {
  background: #E8F7F5;
  color: var(--teal-dark);
  font-size: .7rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: 999px;
  letter-spacing: .04em;
}
.quote-table { width: 100%; border-collapse: collapse; font-size: .78rem; }
.quote-table thead tr { border-bottom: 2px solid var(--gray-border); }
.quote-table th { text-align: left; padding: 8px 6px; font-weight: 600; color: var(--gray-mid); font-size: .7rem; text-transform: uppercase; letter-spacing: .05em; }
.quote-table td { padding: 8px 6px; color: var(--gray); border-bottom: 1px solid #F3F4F6; }
.quote-table td.right { text-align: right; }
.quote-total {
  display: flex;
  justify-content: flex-end;
  gap: 40px;
  margin-top: 14px;
  padding-top: 14px;
  border-top: 2px solid var(--gray-border);
}
.qt-label { font-size: .78rem; color: var(--gray-mid); }
.qt-value { font-size: .9rem; font-weight: 700; color: var(--gray); margin-top: 2px; }
.qt-grand { color: var(--teal); font-size: 1.05rem; }
.hc-actions {
  display: flex;
  gap: 10px;
  padding: 16px 24px;
  border-top: 1px solid var(--gray-border);
  background: #FAFAFA;
}
.hc-btn {
  flex: 1;
  padding: 9px 0;
  border-radius: 8px;
  font-size: .78rem;
  font-weight: 600;
  border: none;
  cursor: pointer;
  text-align: center;
}
.hc-btn-primary { background: var(--teal); color: white; }
.hc-btn-secondary { background: var(--gray-border); color: var(--gray); }

/* floating badges */
.float-badge {
  position: absolute;
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: var(--shadow-md);
  padding: 10px 14px;
  font-size: .78rem;
  font-weight: 600;
  display: flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}
.fb-icon { font-size: 1.1rem; }
.float-badge-1 { top: -16px; right: -16px; }
.float-badge-2 { bottom: 40px; left: -20px; }

/* ─── PROBLEM ────────────────────────────────── */
.problem-section { padding: 96px 0; }
.problem-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.problem-cards { display: grid; gap: 16px; }
.problem-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  padding: 20px 24px;
  display: flex;
  align-items: flex-start;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: box-shadow .2s, border-color .2s;
}
.problem-card:hover { box-shadow: var(--shadow-md); border-color: var(--teal); }
.pc-icon {
  width: 40px; height: 40px;
  border-radius: 10px;
  background: #FEF2F2;
  color: #EF4444;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  flex-shrink: 0;
}
.pc-icon.warn { background: #FFFBEB; color: #F59E0B; }
.pc-icon.info { background: #EFF6FF; color: #3B82F6; }
.pc-title { font-size: .9rem; font-weight: 600; color: var(--gray); margin-bottom: 4px; }
.pc-desc { font-size: .83rem; color: var(--gray-mid); line-height: 1.5; }

/* ─── FEATURES ───────────────────────────────── */
.features-section { padding: 96px 0; background: var(--bg); }
.features-header { text-align: center; margin-bottom: 64px; }
.features-header .section-sub { margin: 14px auto 0; }
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.feature-card {
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: 32px 28px;
  border: 1px solid var(--gray-border);
  box-shadow: var(--shadow-sm);
  transition: box-shadow .25s, transform .25s, border-color .25s;
}
.feature-card:hover { box-shadow: var(--shadow-md); transform: translateY(-4px); border-color: var(--teal); }
.feature-card.accent { background: var(--white); border-color: var(--gray-border); }
.feature-card.accent .fc-title { color: var(--gray); }
.feature-card.accent .fc-desc { color: var(--gray-mid); }
.fc-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: var(--teal-light);
  color: var(--teal-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 20px;
}
.feature-card.accent .fc-icon { background: var(--teal-light); color: var(--teal-dark); }
.fc-title { font-size: 1.05rem; font-weight: 700; margin-bottom: 10px; color: var(--gray); }
.fc-desc { font-size: .875rem; color: var(--gray-mid); line-height: 1.65; }
.fc-tag {
  display: inline-block;
  margin-top: 16px;
  background: var(--teal-light);
  color: var(--teal-dark);
  font-size: .7rem;
  font-weight: 700;
  padding: 3px 10px;
  border-radius: 999px;
}
.feature-card.accent .fc-tag { background: var(--teal-light); color: var(--teal-dark); }

/* ─── HOW IT WORKS ───────────────────────────── */
.how-section { padding: 96px 0; }
.how-header { text-align: center; margin-bottom: 64px; }
.how-header .section-sub { margin: 14px auto 0; }
.how-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 0;
  position: relative;
}
.how-steps::before {
  content: '';
  position: absolute;
  top: 36px;
  left: calc(12.5% + 20px);
  right: calc(12.5% + 20px);
  height: 2px;
  background: linear-gradient(90deg, var(--teal) 0%, var(--teal) 100%);
  background: repeating-linear-gradient(90deg, var(--teal) 0, var(--teal) 12px, transparent 12px, transparent 20px);
}
.how-step { text-align: center; padding: 0 16px; }
.step-num {
  width: 72px; height: 72px;
  border-radius: 50%;
  background: var(--teal);
  color: white;
  font-size: 1.5rem;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: 0 4px 16px rgba(91,191,173,.4);
  position: relative;
  z-index: 1;
}
.step-num.dark { background: var(--gray); box-shadow: 0 4px 16px rgba(61,61,61,.3); }
.step-title { font-size: .95rem; font-weight: 700; margin-bottom: 8px; }
.step-desc { font-size: .83rem; color: var(--gray-mid); line-height: 1.55; }

/* ─── MODULES ────────────────────────────────── */
.modules-section { padding: 96px 0; background: var(--bg); overflow: hidden; position: relative; }
.modules-section::before {
  content: '';
  position: absolute;
  top: -200px; left: -200px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(91,191,173,.15) 0%, transparent 70%);
}
.modules-header { text-align: center; margin-bottom: 64px; }
.modules-header .section-title { color: var(--gray); }
.modules-header .section-sub { color: var(--gray-mid); margin: 14px auto 0; }
.modules-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
.module-card {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 28px 28px;
  display: flex;
  gap: 20px;
  align-items: flex-start;
  transition: background .2s, border-color .2s;
}
.module-card:hover { box-shadow: var(--shadow-md); border-color: var(--teal); }
.module-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: rgba(91,191,173,.2);
  color: var(--teal);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  flex-shrink: 0;
}
.module-title { font-size: 1rem; font-weight: 700; color: var(--gray); margin-bottom: 6px; }
.module-desc { font-size: .85rem; color: var(--gray-mid); line-height: 1.6; }
.module-tag {
  display: inline-block;
  margin-top: 10px;
  background: rgba(91,191,173,.2);
  color: var(--teal);
  font-size: .68rem;
  font-weight: 700;
  padding: 2px 10px;
  border-radius: 999px;
  letter-spacing: .04em;
  text-transform: uppercase;
}

/* ─── NOTIFICATIONS ──────────────────────────── */
.notif-section { padding: 96px 0; }
.notif-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: center;
}
.notif-list { display: grid; gap: 16px; margin-top: 32px; }
.notif-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
}
.notif-check {
  width: 28px; height: 28px;
  border-radius: 50%;
  background: var(--teal-light);
  color: var(--teal-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: .8rem;
  flex-shrink: 0;
  margin-top: 1px;
}
.notif-text { font-size: .9rem; color: var(--gray-mid); line-height: 1.55; }
.notif-text strong { color: var(--gray); }

/* notification mockup */
.notif-mockup { display: grid; gap: 12px; }
.notif-card {
  background: var(--white);
  border-radius: var(--radius);
  padding: 16px 18px;
  box-shadow: var(--shadow-md);
  display: flex;
  align-items: flex-start;
  gap: 14px;
  border-left: 4px solid var(--teal);
  transition: transform .2s;
}
.notif-card:hover { transform: translateX(4px); }
.notif-card.urgent { border-left-color: #EF4444; }
.notif-card.info { border-left-color: #3B82F6; }
.nc-icon { font-size: 1.3rem; flex-shrink: 0; margin-top: 1px; }
.nc-title { font-size: .85rem; font-weight: 600; color: var(--gray); margin-bottom: 3px; }
.nc-body { font-size: .78rem; color: var(--gray-mid); }
.nc-time { font-size: .7rem; color: var(--gray-light); margin-top: 4px; }

/* ─── REQUEST DEMO ─────────────────────────────── */
.demo-section { padding: 96px 0; background: var(--bg); }
.demo-header { text-align: center; margin-bottom: 48px; }
.demo-header .section-sub { margin: 14px auto 0; }
.demo-form {
  max-width: 640px;
  margin: 0 auto;
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius-lg);
  padding: 36px 32px;
  box-shadow: var(--shadow-sm);
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 20px;
}
.demo-field { display: flex; flex-direction: column; gap: 6px; }
.demo-field.full { grid-column: 1 / -1; }
.demo-field label { font-size: .82rem; font-weight: 600; color: var(--gray); }
.demo-field label .req { color: var(--teal-dark); }
.demo-field input,
.demo-field select,
.demo-field textarea {
  font: inherit;
  font-size: .9rem;
  color: var(--gray);
  background: var(--bg);
  border: 1px solid var(--gray-border);
  border-radius: 8px;
  padding: 11px 14px;
  transition: border-color .2s, box-shadow .2s;
}
.demo-field textarea { min-height: 110px; resize: vertical; }
.demo-field select { cursor: pointer; }
.demo-field input:focus,
.demo-field select:focus,
.demo-field textarea:focus {
  outline: none;
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(91,191,173,.2);
}
.demo-field input[aria-invalid="true"],
.demo-field textarea[aria-invalid="true"] { border-color: #EF4444; }
.demo-error { font-size: .75rem; color: #EF4444; min-height: 1em; }
.demo-actions { grid-column: 1 / -1; display: flex; flex-direction: column; align-items: center; gap: 12px; margin-top: 6px; }
.demo-actions .btn-primary { width: 100%; justify-content: center; border: none; cursor: pointer; font: inherit; font-weight: 600; }
.demo-note { font-size: .78rem; color: var(--gray-light); text-align: center; }
.demo-status { font-size: .85rem; color: var(--teal-dark); text-align: center; }

/* ─── FAQ ────────────────────────────────────── */
.faq-section { padding: 96px 0; }
.faq-header { text-align: center; margin-bottom: 56px; }
.faq-header .section-sub { margin: 14px auto 0; }
.faq-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  max-width: 880px;
  margin: 0 auto;
}
.faq-item {
  background: var(--white);
  border: 1px solid var(--gray-border);
  border-radius: var(--radius);
  padding: 22px 24px;
  cursor: pointer;
}
.faq-q {
  font-size: .9rem;
  font-weight: 600;
  color: var(--gray);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.faq-q svg { flex-shrink: 0; color: var(--teal); }
.faq-a {
  font-size: .83rem;
  color: var(--gray-mid);
  line-height: 1.65;
  margin-top: 10px;
}

/* ─── CTA BANNER ─────────────────────────────── */
.cta-section { padding: 96px 0; background: var(--teal-xlight); position: relative; overflow: hidden; }
.cta-section::before {
  content: '';
  position: absolute;
  bottom: -100px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(91,191,173,.2) 0%, transparent 70%);
}
.cta-inner { text-align: center; position: relative; z-index: 1; }
.cta-title { font-size: clamp(2rem, 4vw, 3rem); font-weight: 800; color: var(--gray); margin-bottom: 18px; line-height: 1.2; }
.cta-title span { color: var(--teal); }
.cta-desc { font-size: 1.05rem; color: var(--gray-mid); max-width: 520px; margin: 0 auto 36px; }
.cta-actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }
.cta-note { margin-top: 18px; font-size: .8rem; color: var(--gray-light); }

/* ─── FOOTER ─────────────────────────────────── */
footer {
  background: #2A2A2A;
  color: rgba(255,255,255,.6);
  padding: 64px 0 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p {
  font-size: .85rem;
  line-height: 1.7;
  margin-top: 14px;
  max-width: 280px;
}
.footer-col-title {
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: rgba(255,255,255,.9);
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; display: grid; gap: 10px; }
.footer-col ul li a {
  font-size: .85rem;
  color: rgba(255,255,255,.5);
  text-decoration: none;
  transition: color .2s;
}
.footer-col ul li a:hover { color: var(--teal); }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.1);
  padding-top: 28px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p { font-size: .8rem; }
.footer-links { display: flex; flex-wrap: wrap; justify-content: center; gap: 12px 24px; }
.footer-links a {
  font-size: .8rem;
  color: rgba(255,255,255,.5);
  text-decoration: none;
  transition: color .2s;
}
.footer-links a:hover { color: var(--teal); }

/* ─── RESPONSIVE ─────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .how-steps { grid-template-columns: repeat(2, 1fr); gap: 32px; }
  .how-steps::before { display: none; }
  .modules-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
@media (max-width: 768px) {
  /* nav */
  .nav-links { display: none; }
  .nav-cta a.signin { display: none; }
  .nav-cta .btn-primary { display: none; }
  .nav-hamburger { display: flex; }

  /* sections */
  .hero { padding: 64px 0 56px; }
  .problem-section, .features-section, .how-section,
  .modules-section, .notif-section,
  .demo-section, .faq-section, .cta-section { padding: 64px 0; }

  .problem-grid { grid-template-columns: 1fr; }
  .features-grid { grid-template-columns: 1fr; }
  .how-steps { grid-template-columns: 1fr; gap: 32px; }
  .notif-inner { grid-template-columns: 1fr; }
  .demo-form { grid-template-columns: 1fr; padding: 28px 20px; }
  .faq-grid { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .footer-bottom { flex-direction: column; text-align: center; }
}