:root {
  --bg: #050913;
  --bg-2: #081221;
  --panel: rgba(13, 24, 39, 0.74);
  --panel-2: rgba(8, 19, 32, 0.92);
  --text: #f2f7ff;
  --muted: #a8bed1;
  --soft: #d8e7f5;
  --line: rgba(120, 219, 255, 0.18);
  --cyan: #2eb8ff;
  --mint: #55ffd3;
  --red: #ff405c;
  --gold: #ffbc5d;
  --violet: #a875ff;
  --shadow: 0 30px 70px rgba(0,0,0,.36);
  --radius-xl: 34px;
  --radius-lg: 24px;
  --radius-md: 16px;
  --wrap: min(1180px, calc(100% - 40px));
  --header-h: 82px;
}
* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at 4% 4%, rgba(85,255,211,.18), transparent 27rem),
    radial-gradient(circle at 88% 12%, rgba(255,64,92,.24), transparent 34rem),
    radial-gradient(circle at 60% 75%, rgba(46,184,255,.14), transparent 40rem),
    linear-gradient(180deg, #050913 0%, #08111e 44%, #050913 100%);
  line-height: 1.65;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255,255,255,.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255,255,255,.028) 1px, transparent 1px);
  background-size: 72px 72px;
  mask-image: radial-gradient(circle at center, black, transparent 75%);
  z-index: -1;
}
a { color: inherit; text-decoration: none; }
img { max-width: 100%; display: block; }
p { color: var(--muted); font-size: 1.02rem; }
h1, h2, h3 { margin: 0; line-height: 1.06; letter-spacing: -0.04em; }
h1 { font-size: clamp(3.2rem, 9vw, 7.2rem); }
h2 { font-size: clamp(2rem, 4vw, 4.2rem); }
h3 { font-size: clamp(1.25rem, 2vw, 1.8rem); }
button { font: inherit; }
.read-meter { position: fixed; inset: 0 0 auto; height: 4px; z-index: 100; background: transparent; }
.read-meter span { display: block; height: 100%; width: 0; background: linear-gradient(90deg, var(--mint), var(--cyan), var(--red)); box-shadow: 0 0 20px rgba(85,255,211,.7); }
.site-shell {
  position: sticky;
  top: 0;
  height: var(--header-h);
  z-index: 90;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 20px;
  width: var(--wrap);
  margin: 14px auto 0;
  padding: 12px 14px 12px 12px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(5, 11, 20, 0.68);
  backdrop-filter: blur(22px);
  box-shadow: 0 12px 40px rgba(0,0,0,.26);
  transition: background .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.site-shell.is-scrolled { background: rgba(5, 11, 20, .92); border-color: rgba(85,255,211,.26); box-shadow: var(--shadow); }
.brandmark img { width: 210px; height: auto; }
.primary-nav { justify-self: end; display: flex; align-items: center; gap: 8px; }
.primary-nav a {
  color: var(--soft);
  font-size: .92rem;
  padding: 10px 13px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: .2s ease;
}
.primary-nav a:hover { color: var(--mint); border-color: rgba(85,255,211,.28); background: rgba(85,255,211,.08); }
.header-cta, .btn, .float-cta, .cookie-accept {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid rgba(255,255,255,.14);
  cursor: pointer;
  transition: transform .2s ease, border-color .2s ease, box-shadow .2s ease, background .2s ease;
}
.header-cta, .btn-primary, .cookie-accept {
  color: #06111b;
  background: linear-gradient(135deg, var(--mint), var(--cyan));
  box-shadow: 0 10px 30px rgba(46,184,255,.22);
}
.btn-ghost { color: var(--text); background: rgba(255,255,255,.05); border-color: var(--line); }
.header-cta:hover, .btn:hover, .float-cta:hover, .cookie-accept:hover { transform: translateY(-2px); box-shadow: 0 20px 46px rgba(46,184,255,.26); }
.nav-toggle { display: none; background: rgba(255,255,255,.06); color: var(--text); border: 1px solid var(--line); border-radius: 999px; padding: 9px 12px; }
.nav-toggle span { display: block; width: 18px; height: 2px; margin: 3px 0; background: var(--text); border-radius: 99px; }
.section-gap { width: var(--wrap); margin: 0 auto; padding: 90px 0; }
.eyebrow { margin: 0 0 14px; color: var(--mint); text-transform: uppercase; letter-spacing: .22em; font-size: .8rem; }
.hero-grid {
  min-height: calc(100vh - 96px);
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(350px, .95fr);
  align-items: center;
  gap: 42px;
  padding-top: 78px;
}
.hero-copy p { max-width: 760px; }
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-top: 30px; }
.hero-device { position: relative; min-height: 520px; display: grid; place-items: center; }
.hero-device::before {
  content: "";
  position: absolute;
  inset: 12% -7% 4% 9%;
  border-radius: 42px;
  background: linear-gradient(140deg, rgba(46,184,255,.18), rgba(255,64,92,.18));
  filter: blur(12px);
}
.hero-img {
  position: relative;
  width: 100%;
  border-radius: 38px;
  border: 1px solid rgba(255,255,255,.17);
  box-shadow: var(--shadow);
  transform: rotate(1.5deg);
  aspect-ratio: 16 / 9;
  object-fit: cover;
}
.signal-card {
  position: absolute;
  width: 190px;
  padding: 16px;
  border-radius: 24px;
  background: rgba(6, 16, 28, .76);
  border: 1px solid rgba(85,255,211,.28);
  backdrop-filter: blur(16px);
  box-shadow: 0 18px 40px rgba(0,0,0,.32);
}
.signal-a { left: -10px; bottom: 35px; }
.signal-b { right: 12px; top: 38px; border-color: rgba(255,64,92,.28); }
.signal-label, .signal-card small { display: block; color: var(--muted); }
.signal-value { display: block; font-size: 3rem; line-height: 1; color: var(--text); letter-spacing: -0.06em; }
.toc-band {
  display: grid;
  grid-template-columns: .65fr 1.35fr;
  gap: 28px;
  align-items: start;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(120deg, rgba(46,184,255,.08), rgba(85,255,211,.04), rgba(255,64,92,.08));
  padding: 34px;
}
.toc-band h2 { font-size: clamp(1.7rem, 3vw, 3rem); }
.toc-links { display: flex; flex-wrap: wrap; gap: 10px; }
.toc-links a {
  padding: 12px 14px;
  border: 1px solid rgba(255,255,255,.12);
  border-radius: 999px;
  color: var(--soft);
  background: rgba(255,255,255,.045);
  transition: .2s ease;
}
.toc-links a:hover { color: var(--mint); border-color: rgba(85,255,211,.32); transform: translateY(-2px); }
.visual-note figure, .image-card, .wide-figure {
  margin: 0;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  overflow: hidden;
  background: var(--panel-2);
  box-shadow: var(--shadow);
}
.visual-note img, .wide-figure img { width: 100%; aspect-ratio: 16 / 7; object-fit: cover; }
.image-card img { width: 100%; aspect-ratio: 16 / 10; object-fit: cover; }
figcaption {
  padding: 16px 18px;
  color: var(--muted);
  border-top: 1px solid var(--line);
  font-size: .95rem;
}
.section-title { max-width: 980px; margin-bottom: 28px; }
.table-shell {
  overflow: hidden;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: rgba(7,16,28,.72);
  box-shadow: var(--shadow);
}
table { width: 100%; border-collapse: collapse; min-width: 720px; }
th, td { padding: 18px 20px; text-align: left; vertical-align: top; border-bottom: 1px solid rgba(255,255,255,.08); }
th { color: var(--mint); background: rgba(85,255,211,.06); font-size: .82rem; text-transform: uppercase; letter-spacing: .14em; }
td:first-child { color: var(--soft); width: 220px; }
td { color: var(--muted); }
tr:last-child td { border-bottom: none; }
.app-tabs {
  display: grid;
  grid-template-columns: .8fr 1.2fr;
  gap: 32px;
  align-items: center;
}
.tabs-card, .content-panel, .dual-lists article, .step-columns article, .pros-cons article, .final-card, .phone-shell {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}
.tabs-card { padding: 18px; }
.tab-buttons { display: grid; grid-template-columns: repeat(4, 1fr); gap: 8px; margin-bottom: 12px; }
.tab-button {
  color: var(--soft);
  border: 1px solid rgba(255,255,255,.1);
  background: rgba(255,255,255,.05);
  border-radius: 18px;
  min-height: 48px;
  cursor: pointer;
}
.tab-button.active { color: #06111b; background: linear-gradient(135deg, var(--mint), var(--cyan)); }
.tab-panel { display: none; padding: 24px; border-radius: 22px; background: rgba(0,0,0,.18); border: 1px solid rgba(255,255,255,.08); }
.tab-panel.active { display: block; animation: panelIn .25s ease both; }
@keyframes panelIn { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }
.split-layout { display: grid; grid-template-columns: minmax(0, 1fr) minmax(300px, .58fr); gap: 34px; align-items: center; }
.content-copy, .content-panel { padding: 34px; }
.check-list { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 12px; }
.check-list li {
  position: relative;
  color: var(--muted);
  padding: 14px 16px 14px 46px;
  border-radius: 18px;
  background: rgba(255,255,255,.045);
  border: 1px solid rgba(255,255,255,.08);
}
.check-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 18px;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 35%, #fff, var(--mint));
  box-shadow: 0 0 16px rgba(85,255,211,.45);
}
.check-list.alt li::before { background: radial-gradient(circle at 35% 35%, #fff, var(--cyan)); box-shadow: 0 0 16px rgba(46,184,255,.45); }
.check-list.danger li::before { background: radial-gradient(circle at 35% 35%, #fff, var(--red)); box-shadow: 0 0 16px rgba(255,64,92,.45); }
.mini-phone { display: grid; place-items: center; }
.phone-shell { width: min(330px, 100%); padding: 18px; border-radius: 42px; background: linear-gradient(180deg, rgba(11,24,38,.96), rgba(4,8,15,.96)); }
.phone-top { width: 110px; height: 18px; background: #02060b; border-radius: 999px; margin: 0 auto 18px; }
.phone-screen { display: grid; gap: 12px; }
.phone-screen span {
  min-height: 60px;
  display: flex;
  align-items: center;
  padding: 0 18px;
  border-radius: 18px;
  background: linear-gradient(90deg, rgba(85,255,211,.12), rgba(46,184,255,.06));
  border: 1px solid rgba(85,255,211,.2);
  color: var(--soft);
}
.two-col, .dual-lists, .step-columns, .pros-cons { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 24px; }
.dual-lists article, .step-columns article, .pros-cons article { padding: 30px; }
.flow-list { list-style: none; margin: 22px 0 0; padding: 0; display: grid; gap: 12px; }
.flow-list li {
  position: relative;
  color: var(--muted);
  padding: 15px 15px 15px 46px;
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  border: 1px solid rgba(255,255,255,.08);
}
.flow-list li::before {
  content: "";
  position: absolute;
  left: 16px;
  top: 18px;
  width: 16px;
  height: 16px;
  border-radius: 5px;
  background: linear-gradient(135deg, var(--gold), var(--red));
  box-shadow: 0 0 16px rgba(255,188,93,.28);
}
.score-section .table-shell td:nth-child(2) { color: var(--gold); white-space: nowrap; }
.responsible .content-panel { border-color: rgba(255,188,93,.22); background: linear-gradient(135deg, rgba(255,188,93,.07), rgba(255,64,92,.06)); }
.final-card { padding: clamp(30px, 5vw, 56px); background: radial-gradient(circle at 85% 18%, rgba(85,255,211,.16), transparent 18rem), var(--panel); }
.final-card p { max-width: 920px; }
.faq-list { display: grid; gap: 12px; }
.faq-item {
  border: 1px solid var(--line);
  border-radius: 22px;
  background: rgba(8, 18, 31, .76);
  overflow: hidden;
}
.faq-question {
  width: 100%;
  border: 0;
  background: transparent;
  color: var(--text);
  text-align: left;
  padding: 22px 56px 22px 22px;
  cursor: pointer;
  position: relative;
  font-size: 1.05rem;
}
.faq-question::after { content: "+"; position: absolute; right: 22px; top: 50%; transform: translateY(-50%); color: var(--mint); font-size: 1.5rem; }
.faq-question[aria-expanded="true"]::after { content: "−"; }
.faq-answer { display: grid; grid-template-rows: 0fr; transition: grid-template-rows .26s ease; }
.faq-item.active .faq-answer { grid-template-rows: 1fr; }
.faq-answer p { overflow: hidden; margin: 0; padding: 0 22px 22px; }
.float-cta {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 70;
  color: #06111b;
  background: linear-gradient(135deg, var(--gold), var(--red));
  box-shadow: 0 20px 46px rgba(255,64,92,.25);
}
.cookie-note {
  position: fixed;
  left: 22px;
  bottom: 22px;
  z-index: 80;
  width: min(430px, calc(100% - 44px));
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(5, 12, 22, .9);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}
.cookie-note.is-hidden { display: none; }
.cookie-note p { margin: 0 0 14px; }
.site-footer {
  width: var(--wrap);
  margin: 30px auto 0;
  padding: 42px 0 54px;
  border-top: 1px solid var(--line);
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 28px;
  align-items: start;
}
.site-footer img { width: 230px; margin-bottom: 14px; }
.site-footer p { max-width: 740px; }
.site-footer nav { display: flex; gap: 12px; flex-wrap: wrap; }
.site-footer nav a { color: var(--muted); padding: 10px 12px; border: 1px solid var(--line); border-radius: 999px; }
.reveal { opacity: 0; transform: translateY(24px); transition: opacity .7s ease, transform .7s ease; }
.reveal.is-visible { opacity: 1; transform: translateY(0); }
@media (max-width: 980px) {
  :root { --wrap: min(100% - 28px, 760px); --header-h: auto; }
  .site-shell { grid-template-columns: auto auto; border-radius: 28px; }
  .brandmark img { width: 180px; }
  .nav-toggle { display: inline-flex; align-items: center; gap: 8px; justify-self: end; }
  .primary-nav {
    grid-column: 1 / -1;
    display: none;
    width: 100%;
    flex-direction: column;
    align-items: stretch;
    padding: 10px 0 2px;
  }
  .primary-nav.is-open { display: flex; }
  .primary-nav a { width: 100%; }
  .header-cta { display: none; }
  .hero-grid, .toc-band, .app-tabs, .split-layout, .two-col, .dual-lists, .step-columns, .pros-cons, .site-footer { grid-template-columns: 1fr; }
  .hero-grid { padding-top: 58px; min-height: auto; }
  .hero-device { min-height: 360px; }
  .signal-card { position: relative; inset: auto; width: 100%; margin-top: 12px; }
  .hero-device { align-content: center; }
  .toc-band { padding: 26px; }
}
@media (max-width: 620px) {
  h1 { font-size: clamp(2.7rem, 17vw, 5rem); }
  .section-gap { padding: 58px 0; }
  .tab-buttons { grid-template-columns: 1fr 1fr; }
  .content-copy, .content-panel, .dual-lists article, .step-columns article, .pros-cons article, .final-card { padding: 22px; }
  .hero-actions { flex-direction: column; }
  .btn { width: 100%; }
  .visual-note img, .wide-figure img, .image-card img { aspect-ratio: 4 / 3; }
  .float-cta { right: 14px; bottom: 14px; min-height: 42px; padding: 0 14px; }
  .cookie-note { left: 14px; bottom: 68px; width: calc(100% - 28px); }
}