:root {
  --ink: #0b1220;
  --ink-2: #131d33;
  --ink-3: #1d2a47;
  --paper: #f4f1ea;
  --line: rgba(159, 183, 214, 0.18);
  --muted: #8d9bb5;
  --sky: #8fd3ff;
  --yellow: #ffd23f;
  --red: #ff6b4a;
  --green: #5ee0a0;
  --radius: 18px;
  --font: "Archivo", system-ui, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; scroll-padding-top: 90px; }
body {
  margin: 0;
  font-family: var(--font);
  color: #e8edf6;
  background:
    radial-gradient(1200px 600px at 85% -10%, rgba(143, 211, 255, 0.14), transparent 60%),
    radial-gradient(900px 500px at -10% 30%, rgba(255, 210, 63, 0.06), transparent 60%),
    var(--ink);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
a { color: inherit; }
.mono { font-family: var(--mono); }
.small { font-size: 0.8rem; }
.hidden { position: absolute; left: -9999px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 0.5rem;
  padding: 0.95rem 1.5rem;
  background: var(--yellow); color: var(--ink);
  font-weight: 800; letter-spacing: 0.01em; text-decoration: none;
  border: 0; border-radius: 999px; cursor: pointer; font-family: inherit; font-size: 1rem;
  box-shadow: 0 10px 30px -10px rgba(255, 210, 63, 0.6);
  transition: transform 0.15s ease, box-shadow 0.15s ease;
}
.btn:hover { transform: translateY(-2px); box-shadow: 0 16px 34px -12px rgba(255, 210, 63, 0.75); }
.btn-sm { padding: 0.6rem 1.1rem; font-size: 0.9rem; }
.btn-ghost { background: transparent; color: #e8edf6; border: 1px solid var(--line); box-shadow: none; }
.btn-ghost:hover { border-color: var(--sky); box-shadow: none; }
.btn-dark { background: var(--ink); color: #fff; box-shadow: none; }
.btn-block { width: 100%; }

/* Nav */
.nav {
  position: sticky; top: 0; z-index: 20;
  display: flex; align-items: center; justify-content: space-between; gap: 1rem;
  padding: 0.9rem clamp(1rem, 4vw, 3rem);
  background: rgba(11, 18, 32, 0.78);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}
.brand { display: flex; align-items: center; gap: 0.6rem; text-decoration: none; }
.brand-mark {
  display: grid; place-items: center; width: 42px; height: 42px;
  background: var(--yellow); color: var(--ink); font-weight: 900; font-size: 1.1rem;
  border-radius: 10px; letter-spacing: -0.04em;
  clip-path: polygon(0 0, 100% 0, 100% 72%, 72% 100%, 0 100%);
}
.brand-text { font-weight: 800; font-size: 0.78rem; line-height: 1.05; text-transform: uppercase; letter-spacing: 0.08em; }
.nav-links { display: flex; gap: 2rem; }
.nav-links a { text-decoration: none; color: var(--muted); font-weight: 500; font-size: 0.95rem; }
.nav-links a:hover { color: #fff; }

/* Hero */
.hero {
  display: grid; grid-template-columns: 1.05fr 1fr; gap: 3rem; align-items: center;
  max-width: 1240px; margin: 0 auto;
  padding: clamp(3rem, 8vw, 6.5rem) clamp(1rem, 4vw, 3rem) 4rem;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 0.55rem;
  font-family: var(--mono); font-size: 0.8rem; color: var(--sky);
  padding: 0.4rem 0.8rem; border: 1px solid var(--line); border-radius: 999px; margin: 0 0 1.5rem;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--green); box-shadow: 0 0 0 4px rgba(94, 224, 160, 0.18); animation: pulse 2s infinite; }
@keyframes pulse { 50% { box-shadow: 0 0 0 8px rgba(94, 224, 160, 0); } }
h1 {
  font-size: clamp(2.8rem, 6.6vw, 5.4rem); line-height: 0.95; margin: 0 0 1.4rem;
  font-weight: 900; letter-spacing: -0.035em;
}
h1 em { font-style: normal; color: var(--yellow); }
.lede { font-size: 1.15rem; color: #b9c4d8; max-width: 34rem; margin: 0 0 2rem; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 0.8rem; margin-bottom: 2.6rem; }
.hero-stats { display: flex; gap: 2rem; list-style: none; padding: 1.5rem 0 0; margin: 0; border-top: 1px solid var(--line); }
.hero-stats li { display: flex; flex-direction: column; }
.hero-stats strong { font-size: 1.6rem; font-weight: 900; letter-spacing: -0.02em; }
.hero-stats span { font-size: 0.85rem; color: var(--muted); }

.hero-glass { position: relative; }
.windshield { width: 100%; height: auto; filter: drop-shadow(0 40px 60px rgba(0, 0, 0, 0.5)); }
.shine { animation: shine 6s ease-in-out infinite; }
@keyframes shine { 0%, 40% { transform: translateX(0) skewX(-20deg); } 100% { transform: translateX(900px) skewX(-20deg); } }
.crack path, .crack circle { opacity: 0.9; }
.spread { animation: spread 5s ease-in-out infinite; }
@keyframes spread { 0%, 15% { stroke-dashoffset: 320; } 55%, 80% { stroke-dashoffset: 0; } 100% { stroke-dashoffset: 320; opacity: 0; } }
.fix-ring { transform-origin: 330px 150px; animation: spin 14s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }
.glass-tag {
  position: absolute; font-size: 0.82rem; font-weight: 600;
  padding: 0.55rem 0.85rem; border-radius: 10px;
  background: rgba(19, 29, 51, 0.9); border: 1px solid var(--line); backdrop-filter: blur(8px);
}
.glass-tag .mono { color: var(--yellow); margin-right: 0.35rem; }
.tag-a { top: 18%; right: -2%; }
.tag-b { bottom: 4%; left: 4%; max-width: 15rem; }
.tag-b .mono { color: var(--red); }

/* Strip */
.strip {
  border-block: 1px solid var(--line); padding: 1.3rem clamp(1rem, 4vw, 3rem);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center; gap: 0.8rem 2.5rem;
  background: rgba(19, 29, 51, 0.5);
}
.strip p { margin: 0; font-family: var(--mono); font-size: 0.78rem; color: var(--muted); text-transform: uppercase; letter-spacing: 0.08em; }
.strip ul { display: flex; flex-wrap: wrap; gap: 0.5rem 1.8rem; list-style: none; margin: 0; padding: 0; font-weight: 600; }
.strip li::before { content: "◆"; color: var(--yellow); font-size: 0.6rem; margin-right: 0.5rem; vertical-align: 2px; }

/* Sections */
.section { max-width: 1240px; margin: 0 auto; padding: clamp(4rem, 9vw, 7rem) clamp(1rem, 4vw, 3rem); }
.section-head { max-width: 40rem; margin-bottom: 3rem; }
.kicker { font-family: var(--mono); color: var(--yellow); font-size: 0.82rem; text-transform: uppercase; letter-spacing: 0.12em; margin: 0 0 0.8rem; }
h2 { font-size: clamp(2rem, 4.2vw, 3.2rem); line-height: 1.02; letter-spacing: -0.03em; font-weight: 900; margin: 0; }
.sub { color: var(--muted); font-size: 1.05rem; margin: 1rem 0 0; }
h3 { font-size: 1.25rem; margin: 0 0 0.5rem; letter-spacing: -0.01em; }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.card {
  background: var(--ink-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 1.6rem; display: flex; flex-direction: column;
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.card:hover { transform: translateY(-4px); border-color: rgba(143, 211, 255, 0.45); }
.card p { color: #aeb9cd; margin: 0 0 1.2rem; font-size: 0.95rem; }
.card .price { margin-top: auto; margin-bottom: 0; color: #fff; font-weight: 800; font-size: 1.4rem; }
.card .price span { font-family: var(--mono); font-size: 0.72rem; color: var(--muted); font-weight: 400; text-transform: uppercase; margin-right: 0.25rem; }
.card .price small { display: block; font-size: 0.78rem; color: var(--green); font-weight: 600; }
.card-ico { width: 52px; height: 52px; border-radius: 14px; background: var(--ink-3); display: grid; place-items: center; margin-bottom: 1.4rem; }
.card-ico svg { width: 30px; height: 30px; fill: none; stroke: var(--sky); stroke-width: 2; stroke-linecap: round; stroke-linejoin: round; }
.card-feature { background: linear-gradient(160deg, #1f3358, var(--ink-2)); border-color: rgba(143, 211, 255, 0.35); }

/* Checker */
.checker { display: grid; grid-template-columns: 1.2fr 1fr; gap: 1.2rem; }
.checker-controls {
  background: var(--ink-2); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 2rem; display: grid; gap: 1.8rem;
}
fieldset { border: 0; padding: 0; margin: 0; }
legend { font-weight: 700; margin-bottom: 0.8rem; display: flex; gap: 0.6rem; align-items: baseline; padding: 0; }
legend output { color: var(--yellow); font-size: 0.9rem; }
.seg { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
.seg-3 { grid-template-columns: repeat(3, 1fr); }
.seg label { position: relative; }
.seg input { position: absolute; opacity: 0; }
.seg span {
  display: block; text-align: center; padding: 0.8rem 0.6rem; border-radius: 12px;
  border: 1px solid var(--line); cursor: pointer; font-weight: 600; font-size: 0.92rem; color: #b9c4d8;
  transition: all 0.15s ease;
}
.seg input:checked + span { background: var(--sky); border-color: var(--sky); color: var(--ink); }
.seg input:focus-visible + span { outline: 2px solid var(--yellow); outline-offset: 2px; }
input[type="range"] { width: 100%; accent-color: var(--yellow); height: 6px; }
.range-scale { display: flex; justify-content: space-between; font-size: 0.72rem; color: var(--muted); margin-top: 0.4rem; }

.verdict {
  border-radius: var(--radius); padding: 2rem; display: flex; flex-direction: column;
  color: var(--ink); transition: background 0.3s ease;
}
.verdict[data-result="repair"] { background: var(--green); }
.verdict[data-result="maybe"] { background: var(--yellow); }
.verdict[data-result="replace"] { background: var(--red); }
.verdict-label { font-size: 0.75rem; text-transform: uppercase; letter-spacing: 0.1em; margin: 0 0 0.4rem; opacity: 0.75; }
.verdict-title { font-size: clamp(2.4rem, 4vw, 3.4rem); font-weight: 900; letter-spacing: -0.03em; line-height: 1; margin: 0 0 1rem; }
.verdict-body { margin: 0 0 1.6rem; font-weight: 500; }
.verdict-meta { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; padding: 1.2rem 0; border-block: 1px solid rgba(11, 18, 32, 0.2); margin-bottom: 1.6rem; }
.verdict-meta span { display: block; font-size: 0.7rem; text-transform: uppercase; opacity: 0.7; }
.verdict-meta strong { font-size: 1.5rem; font-weight: 900; }
.verdict .btn { margin-top: auto; }

/* Steps */
.steps { list-style: none; padding: 0; margin: 0; display: grid; grid-template-columns: repeat(3, 1fr); gap: 0; counter-reset: s; }
.steps li { padding: 2rem 2rem 2rem 0; border-top: 2px solid var(--line); position: relative; }
.steps li::before { content: ""; position: absolute; top: -2px; left: 0; width: 60px; height: 2px; background: var(--yellow); }
.steps p { color: #aeb9cd; margin: 0; }
.step-n { display: block; color: var(--yellow); font-size: 0.85rem; margin-bottom: 1rem; }

/* Reviews */
.quotes { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.quotes figure { margin: 0; padding: 1.8rem; border-radius: var(--radius); background: var(--paper); color: var(--ink); display: flex; flex-direction: column; }
.stars { color: #e0a800; letter-spacing: 0.15em; margin-bottom: 0.8rem; }
blockquote { margin: 0 0 1.4rem; font-size: 1.08rem; font-weight: 500; line-height: 1.45; }
figcaption { margin-top: auto; font-family: var(--mono); font-size: 0.78rem; color: #56617a; }

/* Quote form */
.quote {
  display: grid; grid-template-columns: 0.9fr 1.1fr; gap: 3rem; align-items: start;
  background: linear-gradient(150deg, var(--ink-3), var(--ink-2)); border: 1px solid var(--line);
  border-radius: 28px; padding: clamp(2rem, 5vw, 4rem); margin-top: 2rem; margin-bottom: 2rem;
  max-width: 1180px;
}
.quote-copy p { color: #b9c4d8; }
.checks { list-style: none; padding: 0; margin: 2rem 0 0; display: grid; gap: 0.7rem; }
.checks li { display: flex; gap: 0.7rem; align-items: center; font-weight: 600; }
.checks li::before { content: "✓"; display: grid; place-items: center; width: 24px; height: 24px; border-radius: 50%; background: var(--green); color: var(--ink); font-size: 0.8rem; font-weight: 900; }
.quote-form { display: grid; gap: 1rem; }
.quote-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.quote-form label { display: grid; gap: 0.4rem; font-size: 0.85rem; font-weight: 600; color: #b9c4d8; }
.quote-form input, .quote-form select, .quote-form textarea {
  width: 100%; font: inherit; font-size: 1rem; color: #fff;
  background: rgba(11, 18, 32, 0.6); border: 1px solid var(--line); border-radius: 12px; padding: 0.85rem 1rem;
  transition: border-color 0.15s ease;
}
.quote-form select { appearance: none; background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%), linear-gradient(135deg, var(--muted) 50%, transparent 50%); background-position: calc(100% - 20px) 50%, calc(100% - 15px) 50%; background-size: 5px 5px; background-repeat: no-repeat; }
.quote-form input:focus, .quote-form select:focus, .quote-form textarea:focus { outline: none; border-color: var(--yellow); }
.quote-form textarea { resize: vertical; }
.form-status { margin: 0; min-height: 1.4em; font-weight: 600; }
.form-status.ok { color: var(--green); }
.form-status.err { color: var(--red); }

/* FAQ */
.faq-list { display: grid; gap: 0.6rem; max-width: 52rem; }
details { border: 1px solid var(--line); border-radius: 14px; background: var(--ink-2); }
summary { cursor: pointer; padding: 1.2rem 1.4rem; font-weight: 700; font-size: 1.05rem; list-style: none; display: flex; justify-content: space-between; gap: 1rem; }
summary::-webkit-details-marker { display: none; }
summary::after { content: "+"; color: var(--yellow); font-size: 1.4rem; line-height: 1; transition: transform 0.2s ease; }
details[open] summary::after { transform: rotate(45deg); }
details p { margin: 0; padding: 0 1.4rem 1.3rem; color: #aeb9cd; }

/* Footer */
.footer {
  border-top: 1px solid var(--line); padding: 2.5rem clamp(1rem, 4vw, 3rem) 6rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; align-items: center; gap: 1rem; color: var(--muted);
}
.footer p { margin: 0; }

.mobile-cta { display: none; }

/* Responsive */
@media (max-width: 1000px) {
  .hero, .checker, .quote { grid-template-columns: 1fr; }
  .cards { grid-template-columns: repeat(2, 1fr); }
  .quotes { grid-template-columns: 1fr; }
  .nav-links { display: none; }
}
@media (max-width: 640px) {
  .cards, .steps, .quote-form .row, .seg-3 { grid-template-columns: 1fr; }
  .steps li { padding-right: 0; }
  .hero-stats { gap: 1.2rem; }
  .hero-stats strong { font-size: 1.25rem; }
  .tag-a { right: 0; top: 4%; }
  .mobile-cta {
    display: flex; position: fixed; left: 1rem; right: 1rem; bottom: 1rem; z-index: 30;
  }
}
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .spread { stroke-dashoffset: 0; }
}