/* ===========================
   ActiveUX — design system
   =========================== */
:root {
  --ink: #1A0F12;
  --ink-2: #2B1A1F;
  --slate: #5A4651;
  --muted: #9A8A92;
  --line: #ECE2E5;
  --bg: #FFFFFF;
  --bg-alt: #FBF6F7;
  --bg-dark: #1A0F12;
  --accent: #E11D48;        /* rose-600 — primary brand red */
  --accent-dark: #BE123C;   /* rose-700 */
  --purple: #FB7185;        /* rose-400 — secondary coral for gradients */
  --rose-deep: #9F1239;     /* rose-800 — used in headings */
  --warn: #FFB547;
  --danger: #F97316;        /* orange-500 — separated from brand red */
  --radius: 14px;
  --radius-lg: 22px;
  --shadow-sm: 0 1px 2px rgba(10,22,40,0.04), 0 2px 6px rgba(10,22,40,0.04);
  --shadow-md: 0 6px 18px rgba(10,22,40,0.08);
  --shadow-lg: 0 24px 48px rgba(10,22,40,0.12);
  --max: 1180px;
  --font: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--bg);
}

a { color: var(--ink); text-decoration: none; }
a:hover { color: var(--accent-dark); }
img { max-width: 100%; display: block; }

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

/* ----- Top nav ----- */
header.nav {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,0.85);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.nav-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 68px;
}
.logo {
  display: inline-flex; align-items: center; gap: 10px;
  font-weight: 700; font-size: 19px; letter-spacing: -0.01em;
}
.logo .dot {
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(225,29,72,0.18);
  animation: pulse 2.4s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(225,29,72,0.18); }
  50% { box-shadow: 0 0 0 9px rgba(225,29,72,0.06); }
}
.logo .word { color: var(--ink); }
.logo .word b { color: var(--ink); }
nav.links { display: flex; gap: 28px; align-items: center; }
nav.links a {
  font-size: 15px; font-weight: 500; color: var(--slate);
  position: relative;
}
nav.links a:hover { color: var(--ink); }
nav.links a.active { color: var(--ink); }
nav.links a.active::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -22px;
  height: 2px; background: var(--accent); border-radius: 2px;
}

/* ----- Buttons ----- */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 20px; border-radius: 10px; border: 1px solid transparent;
  font-weight: 600; font-size: 15px; cursor: pointer;
  transition: transform .15s ease, box-shadow .15s ease, background .15s ease;
}
.btn-primary {
  background: var(--ink); color: #fff;
}
.btn-primary:hover { background: #2B1A1F; color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-accent {
  background: var(--accent); color: #fff;
}
.btn-accent:hover { background: var(--accent-dark); color: #fff; transform: translateY(-1px); box-shadow: var(--shadow-md); }
.btn-ghost {
  background: transparent; color: var(--ink); border-color: var(--line);
}
.btn-ghost:hover { border-color: var(--ink); }

.btn-row { display: flex; flex-wrap: wrap; gap: 12px; }

/* ----- Hero ----- */
.hero {
  position: relative;
  padding: 90px 0 100px;
  background:
    radial-gradient(900px 500px at 85% -10%, rgba(225,29,72,0.18), transparent 60%),
    radial-gradient(700px 480px at 5% 10%, rgba(251,113,133,0.12), transparent 60%),
    linear-gradient(180deg, #FBFCFE 0%, #FFFFFF 100%);
  overflow: hidden;
}
.hero-grid {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: 60px;
  align-items: center;
}
.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 6px 12px; border-radius: 999px;
  background: #fff; border: 1px solid var(--line);
  font-size: 13px; font-weight: 600; color: var(--slate);
  box-shadow: var(--shadow-sm);
}
.eyebrow .pill-dot {
  width: 7px; height: 7px; border-radius: 50%; background: var(--accent);
  box-shadow: 0 0 0 3px rgba(225,29,72,0.18);
}
h1.display {
  font-size: 60px; line-height: 1.04; letter-spacing: -0.025em;
  margin: 22px 0 18px; font-weight: 800;
}
h1 .gradient {
  background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.lede {
  font-size: 19px; line-height: 1.55; color: var(--slate); max-width: 560px;
  margin: 0 0 28px;
}

/* ----- Hero illustration (live monitor mockup) ----- */
.hero-card {
  border-radius: var(--radius-lg);
  background: linear-gradient(160deg, #1A0F12 0%, #3B1622 100%);
  padding: 22px;
  box-shadow: var(--shadow-lg);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: ""; position: absolute; inset: -2px;
  background: linear-gradient(135deg, rgba(225,29,72,0.4), rgba(251,113,133,0.4));
  border-radius: var(--radius-lg); z-index: -1;
  filter: blur(20px); opacity: 0.5;
}
.monitor-head {
  display: flex; align-items: center; justify-content: space-between;
  margin-bottom: 14px;
}
.dots { display: flex; gap: 6px; }
.dots span { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,0.2); }
.dots span.live { background: var(--accent); box-shadow: 0 0 0 3px rgba(225,29,72,0.25); }
.tag {
  font-size: 11px; padding: 4px 10px; border-radius: 999px;
  background: rgba(225,29,72,0.15); color: var(--accent);
  font-family: var(--mono); font-weight: 600; letter-spacing: 0.04em;
}
.metric-row { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; margin-bottom: 14px; }
.metric {
  background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px; padding: 12px;
}
.metric .label { font-size: 11px; color: rgba(255,255,255,0.55); text-transform: uppercase; letter-spacing: 0.06em; }
.metric .value { font-size: 22px; font-weight: 700; margin-top: 6px; }
.metric .delta { font-size: 12px; color: var(--accent); margin-top: 2px; font-weight: 600; }
.metric .delta.bad { color: var(--danger); }

.issue-list { display: flex; flex-direction: column; gap: 8px; }
.issue {
  display: grid; grid-template-columns: 22px 1fr auto; gap: 12px; align-items: center;
  background: rgba(255,255,255,0.04); border: 1px solid rgba(255,255,255,0.08);
  border-radius: 10px; padding: 10px 12px; font-size: 13px;
}
.sev { width: 8px; height: 8px; border-radius: 50%; }
.sev.high { background: var(--danger); box-shadow: 0 0 0 3px rgba(249,115,22,0.18); }
.sev.med { background: var(--warn); }
.sev.low { background: var(--accent); }
.issue .meta { color: rgba(255,255,255,0.55); font-family: var(--mono); font-size: 11px; }

/* ----- Section ----- */
section { padding: 90px 0; }
section.alt { background: var(--bg-alt); }
.section-head { max-width: 720px; margin: 0 auto 52px; text-align: center; }
.section-head .eyebrow { margin-bottom: 16px; }
h2.section-title {
  font-size: 40px; line-height: 1.1; letter-spacing: -0.02em;
  margin: 0 0 14px; font-weight: 700;
}
.section-head p { color: var(--slate); font-size: 17px; margin: 0; }

/* ----- Card grid ----- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px; box-shadow: var(--shadow-sm);
  transition: transform .2s ease, box-shadow .2s ease, border-color .2s ease;
}
.card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); border-color: #D6DEE9; }
.card .icon {
  width: 44px; height: 44px; border-radius: 11px; display: grid; place-items: center;
  background: linear-gradient(135deg, rgba(225,29,72,0.14), rgba(251,113,133,0.10));
  margin-bottom: 16px;
}
.card .icon svg { width: 22px; height: 22px; }
.card h3 { margin: 0 0 8px; font-size: 18px; font-weight: 700; }
.card p { margin: 0; color: var(--slate); font-size: 15px; }

/* ----- Logos ----- */
.logos {
  display: flex; flex-wrap: wrap; justify-content: center; gap: 36px 56px;
  align-items: center;
  filter: grayscale(100%); opacity: 0.65;
}
.logos span { font-weight: 700; font-size: 18px; letter-spacing: 0.02em; color: var(--slate); }

/* ----- Stats ----- */
.stats { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.stat {
  border-radius: var(--radius); padding: 26px 22px;
  background: linear-gradient(180deg, #fff 0%, #FBFDFE 100%);
  border: 1px solid var(--line); box-shadow: var(--shadow-sm);
}
.stat .num {
  font-size: 38px; font-weight: 800; letter-spacing: -0.02em;
  background: linear-gradient(135deg, var(--accent) 0%, var(--purple) 100%);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.stat .lbl { color: var(--slate); font-size: 14px; margin-top: 6px; }

/* ----- CTA banner ----- */
.cta {
  background: linear-gradient(135deg, #1A0F12 0%, #5A1428 100%);
  border-radius: var(--radius-lg); color: #fff;
  padding: 56px 48px; text-align: center;
  position: relative; overflow: hidden;
}
.cta::before, .cta::after {
  content: ""; position: absolute; border-radius: 50%; filter: blur(60px);
}
.cta::before { width: 320px; height: 320px; background: rgba(225,29,72,0.45); top: -120px; right: -80px; }
.cta::after { width: 260px; height: 260px; background: rgba(251,113,133,0.38); bottom: -100px; left: -60px; }
.cta h2 { color: #fff; font-size: 36px; margin: 0 0 12px; letter-spacing: -0.02em; position: relative; }
.cta p { color: rgba(255,255,255,0.78); font-size: 17px; margin: 0 auto 26px; max-width: 540px; position: relative; }
.cta .btn-row { justify-content: center; position: relative; }

/* ----- Footer ----- */
footer {
  border-top: 1px solid var(--line);
  padding: 48px 0 36px;
  background: #fff;
  margin-top: 40px;
}
.foot-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 40px;
  margin-bottom: 32px;
}
.foot-brand p { color: var(--muted); font-size: 14px; max-width: 320px; }
.foot-col h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--ink); margin: 0 0 12px; }
.foot-col a { display: block; color: var(--slate); font-size: 14px; padding: 5px 0; }
.foot-bottom {
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px;
  padding-top: 24px; border-top: 1px solid var(--line);
  font-size: 13px; color: var(--muted);
}

/* ----- Page hero (interior) ----- */
.page-hero {
  padding: 72px 0 48px;
  background:
    radial-gradient(700px 400px at 80% -10%, rgba(225,29,72,0.14), transparent 60%),
    radial-gradient(560px 360px at 0% 0%, rgba(251,113,133,0.10), transparent 60%);
  text-align: center;
}
.page-hero h1 {
  font-size: 48px; letter-spacing: -0.02em; margin: 14px 0 14px; font-weight: 800;
}
.page-hero p { color: var(--slate); font-size: 18px; max-width: 680px; margin: 0 auto; }

/* ----- Feature splits ----- */
.split {
  display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: center;
  margin: 36px 0;
}
.split.reverse { grid-template-columns: 1fr 1fr; direction: rtl; }
.split.reverse > * { direction: ltr; }
.split h3 { font-size: 28px; margin: 8px 0 12px; letter-spacing: -0.015em; }
.split p { color: var(--slate); font-size: 16px; }
.checks { list-style: none; padding: 0; margin: 16px 0 0; }
.checks li {
  padding: 8px 0 8px 28px; position: relative; color: var(--ink); font-size: 15px;
}
.checks li::before {
  content: ""; position: absolute; left: 0; top: 13px;
  width: 16px; height: 16px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px rgba(225,29,72,0.15);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 16 16'%3E%3Cpath d='M4 8.2 6.8 11l5-6' stroke='%23FFFFFF' stroke-width='2' fill='none' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-size: 14px 14px; background-repeat: no-repeat; background-position: center;
}

.illu {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; box-shadow: var(--shadow-md);
}

/* ----- Case study cards ----- */
.case-card {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  overflow: hidden; box-shadow: var(--shadow-sm); display: flex; flex-direction: column;
  transition: transform .2s ease, box-shadow .2s ease;
}
.case-card:hover { transform: translateY(-3px); box-shadow: var(--shadow-md); }
.case-card .banner {
  height: 140px; padding: 22px;
  display: flex; align-items: flex-end; color: #fff; font-weight: 700; font-size: 22px;
}
.banner.b1 { background: linear-gradient(135deg, #9F1239 0%, #E11D48 100%); }
.banner.b2 { background: linear-gradient(135deg, #E11D48 0%, #FB7185 100%); }
.banner.b3 { background: linear-gradient(135deg, #1A0F12 0%, #E11D48 100%); }
.case-body { padding: 22px; flex: 1; display: flex; flex-direction: column; }
.case-body .industry { font-size: 12px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); }
.case-body h3 { font-size: 19px; margin: 8px 0 10px; line-height: 1.3; }
.case-body p { color: var(--slate); font-size: 14.5px; flex: 1; }
.results { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; padding-top: 16px; border-top: 1px solid var(--line); }
.results .r { text-align: center; }
.results .r .v { font-weight: 800; color: var(--ink); font-size: 18px; }
.results .r .l { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 2px; }
.case-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }

/* ----- FAQ ----- */
.faq-list { max-width: 820px; margin: 0 auto; }
.faq-item {
  border-bottom: 1px solid var(--line); padding: 18px 0;
}
.faq-item summary {
  list-style: none; cursor: pointer;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
  font-size: 17px; font-weight: 600; color: var(--ink);
  padding: 6px 0;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item .chev {
  width: 28px; height: 28px; border-radius: 50%; background: var(--bg-alt);
  display: grid; place-items: center; transition: transform .25s ease;
  flex-shrink: 0;
}
.faq-item[open] .chev { transform: rotate(180deg); background: var(--accent); }
.faq-item .chev svg { width: 12px; height: 12px; }
.faq-item .answer { color: var(--slate); font-size: 15.5px; padding-top: 10px; max-width: 720px; }

/* ----- About ----- */
.about-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px;
  margin-top: 32px;
}
.value-card {
  border: 1px solid var(--line); border-radius: var(--radius); padding: 26px; background: #fff;
}
.value-card .num {
  font-family: var(--mono); font-size: 14px; font-weight: 600; color: var(--accent-dark);
  letter-spacing: 0.06em; margin-bottom: 12px;
}
.value-card h3 { margin: 0 0 8px; font-size: 18px; }
.value-card p { color: var(--slate); margin: 0; font-size: 15px; }

.timeline { position: relative; max-width: 720px; margin: 32px auto 0; padding-left: 32px; }
.timeline::before {
  content: ""; position: absolute; left: 8px; top: 8px; bottom: 8px; width: 2px;
  background: linear-gradient(180deg, var(--accent), var(--purple));
}
.tl-item { position: relative; padding: 12px 0 18px; }
.tl-item::before {
  content: ""; position: absolute; left: -32px; top: 18px;
  width: 18px; height: 18px; border-radius: 50%; background: #fff; border: 3px solid var(--accent);
  box-shadow: 0 0 0 3px rgba(225,29,72,0.15);
}
.tl-date { font-family: var(--mono); font-size: 13px; color: var(--accent-dark); font-weight: 600; }
.tl-item h4 { margin: 6px 0 4px; font-size: 17px; }
.tl-item p { color: var(--slate); margin: 0; font-size: 15px; }

.team-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 32px; }
.member {
  background: #fff; border: 1px solid var(--line); border-radius: var(--radius);
  padding: 22px; text-align: center;
}
.avatar {
  width: 72px; height: 72px; border-radius: 50%; margin: 0 auto 14px;
  display: grid; place-items: center; color: #fff; font-weight: 700; font-size: 24px;
  letter-spacing: 0.02em;
}
.a1 { background: linear-gradient(135deg, #E11D48, #FB7185); }
.a2 { background: linear-gradient(135deg, #BE123C, #FB7185); }
.a3 { background: linear-gradient(135deg, #1A0F12, #E11D48); }
.a4 { background: linear-gradient(135deg, #FB7185, #9F1239); }
.member h4 { margin: 0; font-size: 16px; }
.member .role { font-size: 13px; color: var(--muted); margin-top: 2px; }

/* ----- Pricing ----- */
.pricing { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; margin-top: 18px; }
.plan { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 28px; }
.plan.popular { border-color: var(--ink); box-shadow: var(--shadow-md); position: relative; }
.plan.popular::before {
  content: "Most popular"; position: absolute; top: -11px; left: 50%; transform: translateX(-50%);
  background: var(--ink); color: #fff; font-size: 11px; font-weight: 700; letter-spacing: 0.06em;
  text-transform: uppercase; padding: 5px 12px; border-radius: 999px;
}
.plan h3 { margin: 0 0 4px; font-size: 18px; }
.plan .price { font-size: 38px; font-weight: 800; margin: 12px 0; letter-spacing: -0.02em; }
.plan .price small { font-size: 14px; font-weight: 500; color: var(--muted); }
.plan ul { list-style: none; padding: 0; margin: 12px 0 22px; }
.plan ul li { padding: 6px 0 6px 22px; position: relative; color: var(--slate); font-size: 14.5px; }
.plan ul li::before {
  content: "✓"; position: absolute; left: 0; color: var(--accent-dark); font-weight: 700;
}
.plan .btn { width: 100%; justify-content: center; }

/* ----- Responsive ----- */
@media (max-width: 960px) {
  .hero-grid, .split, .split.reverse { grid-template-columns: 1fr; gap: 32px; }
  .cards, .case-grid, .pricing, .about-grid { grid-template-columns: 1fr 1fr; }
  .stats { grid-template-columns: 1fr 1fr; }
  .team-grid { grid-template-columns: 1fr 1fr; }
  .foot-grid { grid-template-columns: 1fr 1fr; }
  h1.display { font-size: 44px; }
  h2.section-title { font-size: 30px; }
  nav.links { display: none; }
}
@media (max-width: 560px) {
  .cards, .case-grid, .pricing, .about-grid, .stats, .team-grid, .foot-grid { grid-template-columns: 1fr; }
  section { padding: 60px 0; }
  .hero { padding: 60px 0 70px; }
  h1.display { font-size: 36px; }
  .cta { padding: 40px 24px; }
  .cta h2 { font-size: 28px; }
}