/* ═══════════════════════════════════════════════════════════════
   Alpha TotalCare · Marketing Site · brand-true vanilla CSS
   Fonts:  Plus Jakarta Sans (display) + Inter (body)
   Brand:  Navy #0B1E3F · Blue #1F8FFF · Purple #6E56CF · Sky-50 #F0F8FF
   ═══════════════════════════════════════════════════════════════ */
:root {
  --navy:        #0B1E3F;
  --navy-2:      #0F2A55;
  --blue:        #1F8FFF;
  --blue-dark:   #1772CC;
  --blue-50:     #EFF6FF;
  --purple:      #6E56CF;
  --purple-50:   #F1ECFE;
  --emerald:     #10B981;
  --amber:       #F59E0B;
  --rose:        #EF4444;

  --bg:          #FFFFFF;
  --bg-soft:     #F7F9FC;
  --bg-mute:     #EEF2F7;
  --border:      #E4E8EE;
  --border-2:    #CFD6DF;
  --text:        #1F2937;
  --text-muted:  #5B6776;
  --text-soft:   #8896A6;

  --radius-sm: 10px;
  --radius:    16px;
  --radius-lg: 24px;

  --shadow-1: 0 1px 2px rgba(15,23,42,.04), 0 1px 1px rgba(15,23,42,.03);
  --shadow-2: 0 6px 18px rgba(11,30,63,.06), 0 2px 6px rgba(11,30,63,.04);
  --shadow-3: 0 24px 60px rgba(11,30,63,.14), 0 8px 18px rgba(11,30,63,.06);
  --shadow-hero: 0 40px 90px rgba(11,30,63,.20), 0 16px 30px rgba(11,30,63,.08);

  --container: 1180px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; text-rendering: optimizeLegibility; }
body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--text);
  background: var(--bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}
img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--blue); text-decoration: none; transition: color .15s; }
a:hover { color: var(--blue-dark); }
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.icon { width: 1em; height: 1em; vertical-align: -.125em; flex-shrink: 0; }

/* ── Typography ── */
.font-display { font-family: 'Plus Jakarta Sans', 'Inter', sans-serif; letter-spacing: -0.02em; }
h1, h2, h3, h4 {
  font-family: 'Plus Jakarta Sans', 'Inter', sans-serif;
  color: var(--navy);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -.02em;
}
h1 { font-size: clamp(2.1rem, 4.6vw, 3.4rem); }
h2 { font-size: clamp(1.7rem, 3.2vw, 2.4rem); margin-bottom: .55rem; }
h3 { font-size: 1.3rem; margin-bottom: .35rem; }
h4 { font-size: 1.05rem; margin-bottom: .3rem; }
p  { margin-bottom: 1rem; color: var(--text); }
.muted { color: var(--text-muted); }
.eyebrow {
  display: inline-block;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 11.5px;
  font-weight: 800;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--blue);
  background: var(--blue-50);
  padding: 6px 12px;
  border-radius: 999px;
  margin-bottom: 14px;
}

/* ── Navigation ── */
.nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px; max-width: var(--container); margin: 0 auto;
  position: relative;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  text-decoration: none;
}
.brand-logo { height: 36px; width: auto; display: block; }
.brand-text {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800;
  color: var(--navy);
  font-size: 1.05rem;
  letter-spacing: -.01em;
  white-space: nowrap;
}
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-links a {
  color: var(--text);
  font-weight: 600;
  font-size: .94rem;
  padding: 9px 14px;
  border-radius: 10px;
  transition: background .15s, color .15s;
}
.nav-links a:hover { background: var(--bg-mute); color: var(--navy); }
.nav-links a.active { color: var(--blue); background: var(--blue-50); }
.nav-links .btn { padding: 10px 20px; font-size: .92rem; }
.nav-burger {
  display: none; background: none; border: 0; cursor: pointer;
  font-size: 24px; color: var(--navy);
  width: 42px; height: 42px; border-radius: 10px;
  align-items: center; justify-content: center;
}
.nav-burger:hover { background: var(--bg-mute); }

/* ── Buttons ── */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 700; font-size: .94rem;
  border: 0; cursor: pointer;
  transition: transform .15s ease, box-shadow .2s ease, background .15s, color .15s;
  text-decoration: none; white-space: nowrap;
}
.btn .icon { font-size: 1.05em; }
.btn-primary {
  background: var(--navy);
  color: #fff !important;
  box-shadow: 0 6px 16px rgba(11,30,63,.22);
}
.btn-primary:hover { background: var(--navy-2); color: #fff !important; transform: translateY(-1px); box-shadow: 0 10px 24px rgba(11,30,63,.30); }
.btn-blue {
  background: linear-gradient(135deg, var(--blue) 0%, var(--blue-dark) 100%);
  color: #fff !important;
  box-shadow: 0 8px 22px rgba(31,143,255,.32);
}
.btn-blue:hover { color: #fff !important; transform: translateY(-1px); box-shadow: 0 12px 30px rgba(31,143,255,.42); }
.btn-ghost {
  background: #fff;
  color: var(--navy);
  border: 1.5px solid var(--border-2);
}
.btn-ghost:hover { border-color: var(--blue); color: var(--blue); background: var(--blue-50); }
.btn-lg { padding: 15px 28px; font-size: .98rem; }
.btn.btn-light-on-dark { background: #fff; color: var(--navy) !important; }
.btn.btn-light-on-dark:hover { background: #fff; color: var(--navy) !important; box-shadow: 0 14px 32px rgba(0,0,0,.32); }

/* ── Hero ── */
.hero {
  position: relative; overflow: hidden;
  background:
    radial-gradient(circle at 85% -10%, rgba(110,86,207,.14), transparent 55%),
    radial-gradient(circle at -5% 110%, rgba(31,143,255,.16), transparent 55%),
    linear-gradient(180deg, #FAFCFF 0%, #FFFFFF 100%);
  padding: 82px 0 60px;
}
.hero::before {
  content: ''; position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(11,30,63,.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11,30,63,.03) 1px, transparent 1px);
  background-size: 32px 32px;
  mask-image: radial-gradient(ellipse at center, rgba(0,0,0,.6) 0%, transparent 70%);
  pointer-events: none;
}
.hero > * { position: relative; z-index: 1; }
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 50px; align-items: center;
}
.hero h1 { margin-bottom: 18px; }
.hero p.lead { font-size: 1.12rem; color: var(--text-muted); margin-bottom: 28px; max-width: 540px; }
.hero-ctas { display: flex; gap: 12px; flex-wrap: wrap; margin-bottom: 24px; }
.trust-row {
  display: flex; flex-wrap: wrap; gap: 18px;
  font-size: .87rem; color: var(--text-muted); font-weight: 600;
}
.trust-row span { display: inline-flex; align-items: center; gap: 6px; }
.trust-row .icon { color: var(--emerald); width: 16px; height: 16px; }
.hero-shot {
  position: relative; border-radius: var(--radius-lg);
  overflow: hidden; box-shadow: var(--shadow-hero);
  border: 1px solid var(--border);
  background: #fff;
}

/* ── Sections ── */
.section { padding: 90px 0; }
.section-head { text-align: center; max-width: 720px; margin: 0 auto 50px; }
.section-head h2 { margin-bottom: 14px; }
.section-head p { font-size: 1.05rem; color: var(--text-muted); }
.section-dark {
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy-2) 100%);
  color: #C5D1E2;
}
.section-dark h1, .section-dark h2, .section-dark h3 { color: #fff; }
.section-dark .muted { color: #8FA0BA; }
.section-dark .eyebrow { background: rgba(255,255,255,.08); color: #BFDBFE; }
.section-soft { background: var(--bg-soft); }

/* ── KPI ── */
.kpi { display: grid; grid-template-columns: repeat(4, 1fr); gap: 16px; margin-top: 48px; }
.kpi-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px 18px; text-align: center;
  box-shadow: var(--shadow-1);
}
.kpi-card .big {
  font-family: 'Plus Jakarta Sans', sans-serif; font-size: 2.4rem;
  font-weight: 900; color: var(--navy); letter-spacing: -.04em; line-height: 1;
}
.kpi-card .lbl {
  font-size: .76rem; color: var(--text-muted);
  font-weight: 700; text-transform: uppercase; letter-spacing: .1em;
  margin-top: 8px;
}

/* ── Problem ── */
.problem-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.problem-card {
  background: #fff; border-radius: var(--radius);
  padding: 28px 22px; box-shadow: var(--shadow-1);
  border-top: 4px solid var(--rose);
}
.problem-card .num {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2.4rem; font-weight: 900; color: var(--rose);
  line-height: 1; margin-bottom: 10px; letter-spacing: -.03em;
}
.problem-card .txt { font-size: .92rem; color: var(--text); }

/* ── Product cards ── */
.products-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 28px; }
.product-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-1);
  transition: transform .25s ease, box-shadow .25s ease, border-color .15s;
  display: flex; flex-direction: column;
}
.product-card:hover {
  transform: translateY(-4px); box-shadow: var(--shadow-3); border-color: #B7C2D2;
}
.product-card .shot {
  position: relative;
  background: linear-gradient(135deg, var(--bg-soft), var(--bg-mute));
  border-bottom: 1px solid var(--border);
}
.product-card .shot img {
  display: block; width: 100%; height: 240px;
  object-fit: cover; object-position: top center;
}
.product-card .body { padding: 24px 26px 26px; flex: 1; }
.product-card .kicker {
  display: inline-flex; align-items: center; gap: 6px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 10.5px; font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; color: var(--purple); margin-bottom: 10px;
}
.product-card .kicker .icon { color: var(--purple); }
.product-card h3 { margin-bottom: 8px; }
.product-card .desc { color: var(--text-muted); font-size: .93rem; margin-bottom: 16px; }
.product-card ul.features { list-style: none; }
.product-card ul.features li {
  font-size: .88rem; color: var(--text); padding: 5px 0 5px 24px;
  position: relative;
}
.product-card ul.features li .icon {
  position: absolute; left: 0; top: 7px;
  width: 16px; height: 16px; color: var(--emerald);
}

/* ── Plans ── */
.plan-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; align-items: stretch; }
.plan {
  background: #fff; border: 2px solid var(--border);
  border-radius: var(--radius-lg); padding: 32px 28px;
  position: relative; display: flex; flex-direction: column;
  transition: transform .2s, box-shadow .2s, border-color .15s;
}
.plan:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.plan.featured {
  border-color: var(--blue);
  box-shadow: 0 24px 60px rgba(31,143,255,.18), 0 8px 20px rgba(31,143,255,.10);
  transform: translateY(-8px);
}
.plan.best   { border-color: var(--purple); }
.plan .badge {
  position: absolute; top: -14px; left: 50%; transform: translateX(-50%);
  background: var(--blue); color: #fff;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: .72rem; font-weight: 800; padding: 6px 16px;
  border-radius: 999px; letter-spacing: .1em; text-transform: uppercase;
}
.plan.best .badge { background: var(--purple); }
.plan .name { font-size: 1.45rem; font-weight: 800; color: var(--navy); margin-bottom: 6px; font-family: 'Plus Jakarta Sans', sans-serif; }
.plan .audience { color: var(--text-muted); font-size: .88rem; margin-bottom: 22px; }
.plan .price {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 2.5rem; font-weight: 900; color: var(--navy);
  line-height: 1; letter-spacing: -.04em;
}
.plan .price small { font-size: .85rem; font-weight: 600; color: var(--text-muted); letter-spacing: 0; }
.plan .yearly { color: var(--text-muted); font-size: .9rem; margin: 8px 0 14px; }
.plan .savings { color: var(--emerald); font-weight: 700; font-size: .85rem; margin-bottom: 24px; }
.plan ul.feat { list-style: none; margin-bottom: 28px; flex: 1; }
.plan ul.feat li {
  padding: 9px 0 9px 26px; position: relative;
  font-size: .9rem; color: var(--text);
  border-bottom: 1px solid var(--bg-mute);
}
.plan ul.feat li:last-child { border-bottom: 0; }
.plan ul.feat li .icon {
  position: absolute; left: 0; top: 11px;
  width: 16px; height: 16px; color: var(--blue);
}
.plan .btn { width: 100%; justify-content: center; }

/* ── Add-ons ── */
.addons { margin-top: 56px; background: var(--bg-soft); border-radius: var(--radius-lg); padding: 40px; }
.addons h3 { margin-bottom: 24px; text-align: center; }
.addon-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.addon {
  background: #fff; padding: 22px; border-radius: var(--radius);
  border: 1px solid var(--border);
}
.addon .nm { font-weight: 800; color: var(--purple); font-size: 1rem; margin-bottom: 4px; font-family: 'Plus Jakarta Sans', sans-serif; }
.addon .pr { font-weight: 800; color: var(--navy); font-size: 1.15rem; margin-bottom: 6px; font-family: 'Plus Jakarta Sans', sans-serif; }
.addon .ds { color: var(--text-muted); font-size: .87rem; line-height: 1.55; }

/* ── Why ── */
.why-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.why-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px; box-shadow: var(--shadow-1);
  transition: transform .2s, box-shadow .2s;
}
.why-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.why-card .icon-wrap {
  width: 46px; height: 46px; border-radius: 13px;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; margin-bottom: 16px;
}
.why-card .icon-wrap .icon { width: 22px; height: 22px; }

/* ── Tech grid ── */
.tech-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.tech-card {
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.10);
  border-radius: var(--radius); padding: 24px;
  transition: background .15s, border-color .15s;
}
.tech-card:hover { background: rgba(255,255,255,.07); border-color: rgba(255,255,255,.18); }
.tech-card .cap {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800; color: #fff; margin-bottom: 6px;
  display: flex; align-items: center; gap: 10px;
}
.tech-card .cap .icon { color: var(--blue); width: 20px; height: 20px; }
.tech-card .prov { color: #94A3B8; font-size: .9rem; }

/* ── Competitive table ── */
.compare-wrap { overflow-x: auto; border-radius: var(--radius-lg); box-shadow: var(--shadow-2); }
.compare {
  width: 100%; min-width: 720px; border-collapse: collapse;
  background: #fff; border-radius: var(--radius-lg); overflow: hidden;
}
.compare th, .compare td {
  padding: 14px 16px; font-size: .92rem; text-align: left;
  border-bottom: 1px solid var(--bg-mute);
}
.compare thead th {
  background: var(--navy); color: #fff;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-weight: 800; text-align: center; letter-spacing: -.01em;
}
.compare thead th:first-child { text-align: left; }
.compare td { color: var(--text); text-align: center; }
.compare td:first-child { font-weight: 700; color: var(--navy); text-align: left; }
.compare td .yes { color: var(--emerald); }
.compare td .no  { color: var(--text-soft); }
.compare tbody tr:nth-child(odd) td { background: var(--bg-soft); }
.compare td.alpha { color: var(--blue); font-weight: 800; background: var(--blue-50) !important; }

/* ── FAQ ── */
.faq { max-width: 820px; margin: 0 auto; }
.faq-item {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); margin-bottom: 12px; overflow: hidden;
  transition: border-color .15s, box-shadow .15s;
}
.faq-item:hover { border-color: var(--border-2); }
.faq-q {
  width: 100%; background: none; border: 0; padding: 20px 22px;
  display: flex; justify-content: space-between; align-items: center; gap: 12px;
  text-align: left; cursor: pointer; font-weight: 700;
  color: var(--navy); font-size: 1rem;
  font-family: 'Plus Jakarta Sans', sans-serif;
}
.faq-q:hover { background: var(--bg-soft); }
.faq-q .icon { color: var(--blue); width: 18px; height: 18px; transition: transform .25s; flex-shrink: 0; }
.faq-item.open .faq-q .icon { transform: rotate(45deg); }
.faq-a { padding: 0 22px; max-height: 0; overflow: hidden; transition: max-height .3s ease, padding .3s; color: var(--text-muted); }
.faq-item.open .faq-a { max-height: 400px; padding: 0 22px 22px; }

/* ── CTA banner ── */
.cta-banner {
  background:
    radial-gradient(circle at 90% 10%, rgba(31,143,255,.4), transparent 55%),
    radial-gradient(circle at 10% 90%, rgba(110,86,207,.4), transparent 55%),
    linear-gradient(135deg, var(--navy) 0%, var(--navy-2) 100%);
  border-radius: var(--radius-lg); padding: 70px 50px; text-align: center;
  color: #fff; position: relative; overflow: hidden;
}
.cta-banner h2 { color: #fff; margin-bottom: 14px; }
.cta-banner p { color: #C5D1E2; font-size: 1.08rem; margin-bottom: 30px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ── Downloads ── */
.dl-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.dl-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px;
  box-shadow: var(--shadow-1);
  transition: transform .15s, box-shadow .15s;
  display: flex; flex-direction: column;
}
.dl-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-2); }
.dl-card .icon-wrap {
  width: 56px; height: 56px; border-radius: 14px;
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; margin-bottom: 16px;
}
.dl-card .icon-wrap .icon { width: 28px; height: 28px; }
.dl-card .icon-wrap.docx { background: linear-gradient(135deg, #2B579A, #1B3D6D); }
.dl-card .icon-wrap.pptx { background: linear-gradient(135deg, #D24726, #A23718); }
.dl-card .icon-wrap.pdf  { background: linear-gradient(135deg, #B30B00, #800800); }
.dl-card h4 { color: var(--navy); margin-bottom: 8px; }
.dl-card p { color: var(--text-muted); font-size: .9rem; margin-bottom: 20px; flex: 1; }

/* ── Product detail ── */
.product-detail {
  display: grid; grid-template-columns: 1fr 1fr; gap: 60px;
  align-items: center; padding: 70px 0; border-bottom: 1px solid var(--bg-mute);
}
.product-detail:last-of-type { border-bottom: 0; }
.product-detail.flip > div:first-child { order: 2; }
.product-detail .info .kicker {
  font-size: 11.5px; font-weight: 800; letter-spacing: .12em;
  text-transform: uppercase; color: var(--purple); margin-bottom: 12px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  display: inline-flex; align-items: center; gap: 8px;
}
.product-detail .info h2 { margin-bottom: 14px; }
.product-detail .info ul { list-style: none; margin-top: 20px; }
.product-detail .info ul li {
  padding: 7px 0 7px 28px; position: relative; color: var(--text);
}
.product-detail .info ul li .icon {
  position: absolute; left: 0; top: 10px;
  width: 17px; height: 17px; color: var(--emerald);
}
.product-detail .img-wrap {
  border-radius: var(--radius-lg); overflow: hidden;
  box-shadow: var(--shadow-3); border: 1px solid var(--border);
}

/* ── Footer ── */
.footer { background: var(--navy); color: #8FA0BA; padding: 70px 0 30px; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px; margin-bottom: 40px; }
.footer h5 {
  color: #fff; font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: .82rem; text-transform: uppercase;
  letter-spacing: .12em; margin-bottom: 16px;
}
.footer .brand-text { color: #fff; }
.footer ul { list-style: none; }
.footer ul li { margin-bottom: 9px; font-size: .92rem; }
.footer ul li a { color: #8FA0BA; }
.footer ul li a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.08); padding-top: 24px;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  font-size: .85rem; color: #5B6776;
}

/* ── Contact cards ── */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 24px; }
.contact-card {
  background: #fff; border: 1px solid var(--border);
  border-radius: var(--radius); padding: 28px;
  box-shadow: var(--shadow-1);
}
.contact-card .icon-wrap {
  width: 46px; height: 46px; border-radius: 13px;
  background: linear-gradient(135deg, var(--blue), var(--purple));
  display: inline-flex; align-items: center; justify-content: center;
  color: #fff; margin-bottom: 16px;
}
.contact-card .icon-wrap .icon { width: 22px; height: 22px; }
.contact-card a { font-weight: 700; }

/* ── Reveal ── */
.product-card, .why-card, .kpi-card, .problem-card, .plan, .addon, .dl-card, .tech-card {
  opacity: 0; transform: translateY(14px);
  transition: opacity .55s ease, transform .55s ease;
}
.product-card.in-view, .why-card.in-view, .kpi-card.in-view, .problem-card.in-view,
.plan.in-view, .addon.in-view, .dl-card.in-view, .tech-card.in-view {
  opacity: 1; transform: none;
}

/* ── Responsive ── */
@media (max-width: 1024px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .hero { padding: 60px 0 50px; }
  .hero-grid, .products-grid, .why-grid, .tech-grid, .product-detail, .contact-grid {
    grid-template-columns: 1fr;
  }
  .product-detail.flip > div:first-child { order: 0; }
  .plan-grid { grid-template-columns: 1fr; }
  .plan.featured { transform: none; }
  .kpi, .problem-grid, .addon-grid, .dl-grid { grid-template-columns: repeat(2, 1fr); }
  .nav-burger { display: inline-flex; }
  .nav-links {
    display: none; position: fixed;
    inset: 64px 16px auto 16px;
    background: #fff;
    flex-direction: column; align-items: stretch;
    padding: 14px; gap: 4px;
    border-radius: var(--radius);
    box-shadow: var(--shadow-3);
    border: 1px solid var(--border);
    z-index: 200;
  }
  .nav-links.open { display: flex; }
  .nav-links a { padding: 14px 18px; font-size: 1rem; }
  .nav-links .btn { margin-top: 6px; }
  .section { padding: 60px 0; }
  .cta-banner { padding: 50px 28px; }
  .addons { padding: 26px; }
}
@media (max-width: 560px) {
  .kpi, .problem-grid, .addon-grid, .dl-grid { grid-template-columns: 1fr; }
  .container { padding: 0 18px; }
  .hero p.lead { font-size: 1rem; }
  .nav-inner { padding: 12px 18px; }
  .brand-logo { height: 30px; }
  .brand-text { font-size: .98rem; }
  .footer-grid { grid-template-columns: 1fr; gap: 28px; }
}