/* Caller ID: Block Spam Calls — marketing site
   Dark theme, blue→violet accent derived from the app icon. */

:root {
  --bg: #060a17;
  --bg-soft: #0b1226;
  --bg-card: rgba(255, 255, 255, 0.04);
  --bg-card-strong: rgba(255, 255, 255, 0.07);
  --border: rgba(120, 150, 255, 0.14);
  --border-strong: rgba(120, 150, 255, 0.26);
  --text: #eef2ff;
  --text-soft: #b3bfe0;
  --text-mute: #7683a8;
  --accent: #3d6bff;
  --accent-2: #6d8dff;
  --accent-3: #244fd6;
  --violet: #7b5bff;
  --accent-glow: rgba(61, 107, 255, 0.35);
  --danger: #ff5a6a;
  --success: #22c55e;
  --radius-card: 18px;
  --radius-hero: 28px;
  --maxw: 1180px;
  --font: -apple-system, BlinkMacSystemFont, "SF Pro Display", "Inter", Roboto,
    "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--font);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }

img { max-width: 100%; display: block; }

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

/* ---------- Ambient background glow ---------- */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(600px 400px at 12% -5%, rgba(61, 107, 255, 0.18), transparent 60%),
    radial-gradient(700px 500px at 92% 8%, rgba(123, 91, 255, 0.14), transparent 62%);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: rgba(6, 10, 23, 0.72);
  border-bottom: 1px solid var(--border);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 66px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  font-size: 17px;
  letter-spacing: -0.2px;
}
.brand img {
  width: 34px;
  height: 34px;
  border-radius: 9px;
  box-shadow: 0 4px 14px rgba(61, 107, 255, 0.35);
}
.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  font-size: 15px;
  color: var(--text-soft);
}
.nav-links a:hover { color: var(--text); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-weight: 600;
  font-size: 15px;
  padding: 11px 20px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent), var(--violet));
  color: #fff;
  box-shadow: 0 10px 28px var(--accent-glow);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 14px 34px var(--accent-glow); }
.btn-ghost {
  background: var(--bg-card);
  border-color: var(--border-strong);
  color: var(--text);
}
.btn-ghost:hover { background: var(--bg-card-strong); }

/* ---------- Google Play badge ---------- */
.googleplay-badge {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: #000;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 14px;
  padding: 10px 20px 10px 16px;
  transition: transform 0.15s ease, border-color 0.15s ease;
}
.googleplay-badge:hover { transform: translateY(-2px); border-color: rgba(255, 255, 255, 0.4); }
.googleplay-badge svg { width: 26px; height: 26px; }
.googleplay-badge .gp-text { display: flex; flex-direction: column; line-height: 1.15; }
.googleplay-badge .gp-small { font-size: 10px; letter-spacing: 1px; text-transform: uppercase; color: #cfd6e6; }
.googleplay-badge .gp-big { font-size: 19px; font-weight: 600; color: #fff; letter-spacing: 0.2px; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  z-index: 1;
  padding: 84px 0 72px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 40px;
  align-items: center;
}
.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  font-weight: 600;
  color: var(--accent-2);
  background: rgba(61, 107, 255, 0.1);
  border: 1px solid var(--border-strong);
  padding: 6px 14px;
  border-radius: 999px;
  margin-bottom: 22px;
}
.hero h1 {
  font-size: 52px;
  line-height: 1.05;
  letter-spacing: -1.4px;
  margin: 0 0 20px;
  font-weight: 800;
}
.hero h1 .grad {
  background: linear-gradient(120deg, var(--accent-2), var(--violet));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero p.sub {
  font-size: 19px;
  color: var(--text-soft);
  margin: 0 0 30px;
  max-width: 540px;
}
.hero-cta {
  display: flex;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}
.trust-row {
  display: flex;
  gap: 22px;
  flex-wrap: wrap;
  margin-top: 30px;
  font-size: 14px;
  color: var(--text-mute);
}
.trust-row span { display: inline-flex; align-items: center; gap: 7px; }
.trust-row svg { width: 16px; height: 16px; color: var(--accent-2); }

/* Hero phones */
.hero-phones {
  position: relative;
  height: 560px;
  display: flex;
  justify-content: center;
  align-items: center;
}
.hero-phones img {
  position: absolute;
  width: 250px;
  border-radius: 30px;
  box-shadow: 0 30px 70px rgba(0, 0, 0, 0.55);
  border: 1px solid rgba(255, 255, 255, 0.08);
}
.hero-phones img.back {
  transform: rotate(7deg) translate(70px, 8px);
  filter: brightness(0.9);
  z-index: 1;
}
.hero-phones img.front {
  transform: rotate(-5deg) translate(-58px, -6px);
  z-index: 2;
}

/* ---------- Section shell ---------- */
.section { position: relative; z-index: 1; padding: 80px 0; }
.section-head { text-align: center; max-width: 640px; margin: 0 auto 52px; }
.eyebrow {
  text-transform: uppercase;
  letter-spacing: 2px;
  font-size: 12px;
  font-weight: 700;
  color: var(--accent-2);
  margin-bottom: 12px;
}
.section-head h2 {
  font-size: 38px;
  line-height: 1.1;
  letter-spacing: -0.8px;
  margin: 0 0 14px;
  font-weight: 800;
}
.section-head p { font-size: 17px; color: var(--text-soft); margin: 0; }

/* ---------- Features ---------- */
.features-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-card);
  padding: 28px 24px;
  transition: transform 0.18s ease, border-color 0.18s ease, background 0.18s ease;
}
.feature-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-strong);
  background: var(--bg-card-strong);
}
.feature-ico {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, rgba(61, 107, 255, 0.22), rgba(123, 91, 255, 0.22));
  border: 1px solid var(--border-strong);
  margin-bottom: 18px;
}
.feature-ico svg { width: 24px; height: 24px; color: var(--accent-2); }
.feature-card h3 { font-size: 18px; margin: 0 0 8px; letter-spacing: -0.2px; }
.feature-card p { font-size: 15px; color: var(--text-soft); margin: 0; }

/* ---------- Screenshots ---------- */
.screens-scroller {
  justify-content: safe center;
  display: flex;
  gap: 20px;
  overflow-x: auto;
  padding: 8px 24px 24px;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
  scrollbar-color: var(--accent-3) transparent;
}
.screens-scroller::-webkit-scrollbar { height: 8px; }
.screens-scroller::-webkit-scrollbar-thumb { background: var(--accent-3); border-radius: 8px; }
.screens-scroller img {
  width: 262px;
  flex: 0 0 auto;
  border-radius: 26px;
  scroll-snap-align: center;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 18px 44px rgba(0, 0, 0, 0.45);
}

/* ---------- Privacy-first callout ---------- */
.privacy-callout {
  background: linear-gradient(135deg, rgba(61, 107, 255, 0.1), rgba(123, 91, 255, 0.08));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-hero);
  padding: 48px;
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: center;
}
.privacy-callout h2 { font-size: 32px; letter-spacing: -0.6px; margin: 0 0 16px; }
.privacy-callout p { color: var(--text-soft); font-size: 16px; margin: 0 0 14px; }
.privacy-list { list-style: none; padding: 0; margin: 0; display: grid; gap: 14px; }
.privacy-list li { display: flex; gap: 12px; align-items: flex-start; font-size: 15px; color: var(--text-soft); }
.privacy-list svg { width: 20px; height: 20px; color: var(--success); flex: 0 0 auto; margin-top: 2px; }

/* ---------- Download CTA ---------- */
.download-card {
  text-align: center;
  background: linear-gradient(135deg, rgba(61, 107, 255, 0.16), rgba(123, 91, 255, 0.12));
  border: 1px solid var(--border-strong);
  border-radius: var(--radius-hero);
  padding: 64px 32px;
}
.download-card img.dl-icon { width: 84px; height: 84px; border-radius: 20px; margin: 0 auto 22px; box-shadow: 0 10px 30px var(--accent-glow); }
.download-card h2 { font-size: 34px; letter-spacing: -0.6px; margin: 0 0 12px; }
.download-card p { color: var(--text-soft); font-size: 17px; margin: 0 auto 28px; max-width: 480px; }
.download-card .cta-wrap { display: flex; justify-content: center; }

/* ---------- Footer ---------- */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--border);
  padding: 56px 0 32px;
  margin-top: 40px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 32px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 14px; font-weight: 700; }
.footer-brand img { width: 32px; height: 32px; border-radius: 8px; }
.footer p.blurb { color: var(--text-mute); font-size: 14px; max-width: 300px; margin: 0; }
.footer h4 { font-size: 13px; text-transform: uppercase; letter-spacing: 1.2px; color: var(--text-mute); margin: 0 0 16px; }
.footer ul { list-style: none; padding: 0; margin: 0; display: grid; gap: 11px; }
.footer ul a { color: var(--text-soft); font-size: 15px; }
.footer ul a:hover { color: var(--text); }
.footer-bottom {
  margin-top: 44px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13px;
  color: var(--text-mute);
}

/* ---------- Legal / content pages ---------- */
.legal {
  position: relative;
  z-index: 1;
  max-width: 860px;
  margin: 0 auto;
  padding: 60px 24px 80px;
}
.legal h1 { font-size: 40px; letter-spacing: -1px; margin: 0 0 8px; }
.legal .dates { color: var(--text-mute); font-size: 14px; margin-bottom: 36px; }
.legal h2 {
  font-size: 24px;
  letter-spacing: -0.4px;
  margin: 40px 0 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border);
}
.legal h3 { font-size: 18px; margin: 26px 0 10px; }
.legal p, .legal li { color: var(--text-soft); font-size: 15.5px; }
.legal ul, .legal ol { padding-left: 22px; }
.legal li { margin-bottom: 8px; }
.legal a { color: var(--accent-2); }
.legal a:hover { text-decoration: underline; }
.legal .summary-box {
  background: var(--bg-card);
  border: 1px solid var(--border-strong);
  border-radius: 16px;
  padding: 24px 28px;
  margin: 24px 0;
}
.legal .summary-box ul { margin: 0; }
.legal strong { color: var(--text); }
.sdk-table {
  width: 100%;
  border-collapse: collapse;
  margin: 18px 0;
  font-size: 14.5px;
}
.sdk-table th, .sdk-table td {
  text-align: left;
  padding: 12px 14px;
  border: 1px solid var(--border);
  vertical-align: top;
  color: var(--text-soft);
}
.sdk-table th { background: var(--bg-card-strong); color: var(--text); font-weight: 600; }
.table-wrap { overflow-x: auto; }
.back-home { display: inline-flex; align-items: center; gap: 8px; color: var(--accent-2); font-size: 14px; margin-bottom: 30px; }
.back-home:hover { text-decoration: underline; }

/* ---------- Support / FAQ ---------- */
.faq-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 22px 24px;
  margin-bottom: 14px;
}
.faq-item h3 { margin: 0 0 8px; font-size: 17px; }
.faq-item p { margin: 0; color: var(--text-soft); font-size: 15px; }
.contact-card {
  text-align: center;
  background: linear-gradient(135deg, rgba(61, 107, 255, 0.14), rgba(123, 91, 255, 0.1));
  border: 1px solid var(--border-strong);
  border-radius: 20px;
  padding: 44px 32px;
  margin-top: 40px;
}
.contact-card a.email { font-size: 22px; font-weight: 700; color: var(--accent-2); }

/* ---------- Responsive ---------- */
@media (max-width: 920px) {
  .hero-grid { grid-template-columns: 1fr; gap: 20px; }
  .hero h1 { font-size: 42px; }
  .hero-phones { height: 460px; margin-top: 10px; }
  .hero-phones img { width: 210px; }
  .features-grid { grid-template-columns: repeat(2, 1fr); }
  .privacy-callout { grid-template-columns: 1fr; padding: 36px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .nav-links .nav-hide { display: none; }
}
@media (max-width: 560px) {
  .hero { padding: 56px 0 48px; }
  .hero h1 { font-size: 34px; letter-spacing: -0.8px; }
  .hero p.sub { font-size: 17px; }
  .section { padding: 60px 0; }
  .section-head h2 { font-size: 30px; }
  .features-grid { grid-template-columns: 1fr; }
  .hero-phones img { width: 180px; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 24px; }
  .download-card { padding: 48px 22px; }
  .legal h1 { font-size: 32px; }
}