/* batechx.com — SolidJS-inspired blue framework landing page */
:root {
  --blue-900: #0c1a3a;
  --blue-800: #0f2456;
  --blue-700: #1a3a7c;
  --blue-600: #2563eb;
  --blue-500: #3b82f6;
  --blue-400: #60a5fa;
  --blue-300: #93c5fd;
  --blue-100: #dbeafe;
  --blue-50:  #eff6ff;
  --white: #ffffff;
  --gray-50:  #f8fafc;
  --gray-100: #f1f5f9;
  --gray-200: #e2e8f0;
  --gray-500: #64748b;
  --gray-700: #334155;
  --gray-900: #0f172a;
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 3px rgba(0,0,0,.08);
  --shadow-md: 0 4px 16px rgba(37,99,235,.14);
  --shadow-lg: 0 8px 32px rgba(37,99,235,.18);
  --transition: 0.22s ease;
}

*,*::before,*::after { box-sizing:border-box; margin:0; padding:0; }
html { scroll-behavior:smooth; }
body {
  font-family: 'Inter',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-900);
  background: var(--white);
  overflow-x: hidden;
}
img { max-width:100%; height:auto; display:block; }
a { color:inherit; text-decoration:none; }
ul,ol { list-style:none; }

/* ── Typography ── */
h1,h2,h3,h4 { line-height:1.25; font-weight:800; }
h1 { font-size:clamp(2rem,5vw,3.5rem); }
h2 { font-size:clamp(1.5rem,3.5vw,2.4rem); }
h3 { font-size:1.2rem; font-weight:700; }

/* ── Layout ── */
.container { max-width:1100px; margin:0 auto; padding:0 24px; }
.section { padding:80px 0; }
.section--gray { background:var(--gray-50); }

/* ── NAV ── */
.nav {
  position:sticky;
  top:0;
  z-index:100;
  background:rgba(12,26,58,.96);
  backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.08);
}
.nav__inner {
  max-width:1100px;
  margin:0 auto;
  padding:0 24px;
  height:64px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:24px;
}
.nav__brand {
  display:flex;
  align-items:center;
  gap:10px;
}
.nav__logo-img { width:36px; height:36px; flex-shrink:0; }
.nav__brand-name {
  font-size:1.15rem;
  font-weight:800;
  color:var(--white);
  letter-spacing:-.01em;
}
.nav__links {
  display:flex;
  align-items:center;
  gap:28px;
}
.nav__links a {
  font-size:.9rem;
  font-weight:500;
  color:rgba(255,255,255,.75);
  transition:color var(--transition);
}
.nav__links a:hover { color:var(--white); }
.nav__cta {
  display:flex;
  align-items:center;
  gap:10px;
}
.btn {
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:10px 22px;
  border-radius:var(--radius-sm);
  font-size:.9rem;
  font-weight:700;
  cursor:pointer;
  border:none;
  transition:all var(--transition);
  white-space:nowrap;
  min-height:44px;
}
.btn--ghost {
  background:transparent;
  color:rgba(255,255,255,.82);
  border:1.5px solid rgba(255,255,255,.25);
}
.btn--ghost:hover { background:rgba(255,255,255,.1); color:var(--white); }
.btn--primary {
  background:var(--blue-600);
  color:var(--white);
  box-shadow:0 0 0 0 rgba(59,130,246,0);
}
.btn--primary:hover {
  background:var(--blue-500);
  box-shadow:0 4px 18px rgba(59,130,246,.45);
  transform:translateY(-1px);
}
.btn--lg {
  padding:14px 32px;
  font-size:1.05rem;
  border-radius:var(--radius-md);
  min-height:52px;
}
.btn--outline {
  background:transparent;
  border:2px solid var(--blue-600);
  color:var(--blue-600);
}
.btn--outline:hover { background:var(--blue-600); color:var(--white); }

/* ── HERO ── */
.hero {
  background: linear-gradient(135deg, var(--blue-900) 0%, var(--blue-800) 55%, #1e3a8a 100%);
  position:relative;
  overflow:hidden;
  padding:100px 0 80px;
  color:var(--white);
}
.hero::before {
  content:'';
  position:absolute;
  top:-120px;
  right:-120px;
  width:600px;
  height:600px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(59,130,246,.22) 0%,transparent 70%);
  pointer-events:none;
}
.hero::after {
  content:'';
  position:absolute;
  bottom:-80px;
  left:-80px;
  width:400px;
  height:400px;
  border-radius:50%;
  background:radial-gradient(circle,rgba(96,165,250,.12) 0%,transparent 70%);
  pointer-events:none;
}
.hero__inner {
  max-width:1100px;
  margin:0 auto;
  padding:0 24px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:60px;
  align-items:center;
  position:relative;
  z-index:1;
}
.hero__badge {
  display:inline-flex;
  align-items:center;
  gap:6px;
  background:rgba(96,165,250,.15);
  border:1px solid rgba(96,165,250,.3);
  border-radius:100px;
  padding:5px 14px;
  font-size:.82rem;
  font-weight:600;
  color:var(--blue-300);
  margin-bottom:20px;
}
.hero__badge-dot {
  width:7px; height:7px;
  border-radius:50%;
  background:var(--blue-400);
}
.hero__title {
  font-size:clamp(2rem,4.5vw,3.2rem);
  line-height:1.15;
  margin-bottom:20px;
  font-weight:800;
}
.hero__title span { color:var(--blue-400); }
.hero__sub {
  font-size:1.1rem;
  color:rgba(255,255,255,.78);
  margin-bottom:36px;
  line-height:1.65;
}
.hero__actions {
  display:flex;
  align-items:center;
  gap:14px;
  flex-wrap:wrap;
}
.hero__visual {
  display:flex;
  justify-content:flex-end;
}
.hero__card {
  background:rgba(255,255,255,.06);
  border:1px solid rgba(255,255,255,.12);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  backdrop-filter:blur(8px);
  width:100%;
  max-width:420px;
}
.hero__card-title {
  font-size:.78rem;
  font-weight:700;
  color:var(--blue-300);
  text-transform:uppercase;
  letter-spacing:.06em;
  margin-bottom:16px;
}
.hero__stat-row {
  display:flex;
  gap:16px;
  margin-bottom:16px;
  flex-wrap:wrap;
}
.hero__stat {
  flex:1;
  min-width:100px;
  background:rgba(255,255,255,.06);
  border-radius:var(--radius-md);
  padding:14px 12px;
  text-align:center;
}
.hero__stat-val {
  font-size:1.5rem;
  font-weight:800;
  color:var(--white);
}
.hero__stat-lbl {
  font-size:.75rem;
  color:rgba(255,255,255,.55);
  margin-top:4px;
}
.hero__coin-list { display:flex; flex-direction:column; gap:8px; }
.hero__coin {
  display:flex;
  justify-content:space-between;
  align-items:center;
  padding:8px 10px;
  background:rgba(255,255,255,.05);
  border-radius:var(--radius-sm);
  font-size:.88rem;
}
.hero__coin-name { font-weight:600; color:var(--white); }
.hero__coin-price { color:var(--blue-300); font-weight:700; }
.hero__coin-change { color:#4ade80; font-size:.8rem; }

/* ── STATS BAR ── */
.stats-bar {
  background:var(--blue-900);
  color:var(--white);
  padding:32px 0;
}
.stats-bar__inner {
  max-width:1100px;
  margin:0 auto;
  padding:0 24px;
  display:grid;
  grid-template-columns:repeat(4,1fr);
  gap:24px;
  text-align:center;
}
.stats-bar__item-val {
  font-size:1.8rem;
  font-weight:800;
  color:var(--blue-400);
}
.stats-bar__item-lbl {
  font-size:.85rem;
  color:rgba(255,255,255,.6);
  margin-top:4px;
}

/* ── FEATURES ── */
.features__grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
  margin-top:48px;
}
.feature-card {
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  transition:all var(--transition);
}
.feature-card:hover {
  border-color:var(--blue-300);
  box-shadow:var(--shadow-lg);
  transform:translateY(-4px);
}
.feature-card__icon {
  width:48px; height:48px;
  border-radius:var(--radius-md);
  background:var(--blue-50);
  display:flex;
  align-items:center;
  justify-content:center;
  margin-bottom:16px;
}
.feature-card__icon svg { width:24px; height:24px; }
.feature-card__title { font-size:1.05rem; font-weight:700; margin-bottom:10px; color:var(--gray-900); }
.feature-card__desc { font-size:.9rem; color:var(--gray-500); line-height:1.65; }

/* ── SECTION HEADINGS ── */
.section__eyebrow {
  display:inline-block;
  font-size:.82rem;
  font-weight:700;
  text-transform:uppercase;
  letter-spacing:.08em;
  color:var(--blue-600);
  margin-bottom:12px;
}
.section__title {
  font-size:clamp(1.6rem,3vw,2.3rem);
  font-weight:800;
  color:var(--gray-900);
  margin-bottom:16px;
}
.section__desc {
  font-size:1rem;
  color:var(--gray-500);
  max-width:560px;
  line-height:1.7;
}

/* ── SPLIT CONTENT SECTIONS ── */
.split { padding:80px 0; }
.split__inner {
  max-width:1100px;
  margin:0 auto;
  padding:0 24px;
  display:grid;
  grid-template-columns:1fr 1fr;
  gap:64px;
  align-items:center;
}
.split--reverse .split__inner { direction:rtl; }
.split--reverse .split__content,
.split--reverse .split__visual { direction:ltr; }
.split__content {}
.split__content .section__desc { max-width:none; }
.split__cta { margin-top:28px; }
.split__visual {
  border-radius:var(--radius-lg);
  overflow:hidden;
}
.code-panel {
  background:var(--gray-900);
  border-radius:var(--radius-lg);
  padding:28px 24px;
  font-family:'Fira Code','Courier New',monospace;
  font-size:.85rem;
  line-height:1.75;
  color:#e2e8f0;
  border:1px solid rgba(255,255,255,.06);
}
.code-panel .kw { color:#60a5fa; }
.code-panel .fn { color:#a5f3fc; }
.code-panel .str { color:#86efac; }
.code-panel .cm { color:#475569; font-style:italic; }
.code-panel .nm { color:#fde68a; }

/* ── STEPS ── */
.steps__grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:28px;
  margin-top:48px;
}
.step-card {
  text-align:center;
  padding:32px 20px;
}
.step-card__num {
  width:56px; height:56px;
  border-radius:50%;
  background:var(--blue-600);
  color:var(--white);
  font-size:1.3rem;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  margin:0 auto 18px;
  box-shadow:0 4px 14px rgba(37,99,235,.4);
}
.step-card__title { font-size:1rem; font-weight:700; margin-bottom:8px; }
.step-card__desc { font-size:.88rem; color:var(--gray-500); line-height:1.65; }

/* ── TESTIMONIALS ── */
.testimonials__grid {
  display:grid;
  grid-template-columns:repeat(3,1fr);
  gap:24px;
  margin-top:48px;
}
.testimonial-card {
  background:var(--white);
  border:1px solid var(--gray-200);
  border-radius:var(--radius-lg);
  padding:24px;
}
.testimonial-card__text {
  font-size:.92rem;
  color:var(--gray-700);
  line-height:1.7;
  margin-bottom:18px;
}
.testimonial-card__author { display:flex; align-items:center; gap:10px; }
.testimonial-card__avatar {
  width:40px; height:40px;
  border-radius:50%;
  background:linear-gradient(135deg,var(--blue-600),var(--blue-400));
  display:flex;
  align-items:center;
  justify-content:center;
  color:var(--white);
  font-weight:700;
  font-size:.88rem;
  flex-shrink:0;
}
.testimonial-card__name { font-weight:700; font-size:.9rem; }
.testimonial-card__role { font-size:.78rem; color:var(--gray-500); }

/* ── CTA BANNER ── */
.cta-banner {
  background:linear-gradient(135deg,var(--blue-800) 0%,var(--blue-600) 100%);
  color:var(--white);
  padding:80px 0;
  text-align:center;
  position:relative;
  overflow:hidden;
}
.cta-banner::before {
  content:'';
  position:absolute;
  top:-100px; right:-100px;
  width:400px; height:400px;
  border-radius:50%;
  background:rgba(255,255,255,.06);
  pointer-events:none;
}
.cta-banner__title {
  font-size:clamp(1.6rem,3.5vw,2.5rem);
  font-weight:800;
  margin-bottom:16px;
}
.cta-banner__desc {
  font-size:1.05rem;
  color:rgba(255,255,255,.8);
  max-width:520px;
  margin:0 auto 36px;
}
.cta-banner__actions { display:flex; justify-content:center; gap:14px; flex-wrap:wrap; }
.btn--white {
  background:var(--white);
  color:var(--blue-700);
  font-weight:800;
}
.btn--white:hover { background:var(--blue-50); transform:translateY(-1px); }
.btn--ghost-white {
  background:transparent;
  border:2px solid rgba(255,255,255,.45);
  color:var(--white);
}
.btn--ghost-white:hover { background:rgba(255,255,255,.1); }

/* ── FAQ ── */
.faq__list { max-width:720px; margin:48px auto 0; }
.faq__item {
  border-bottom:1px solid var(--gray-200);
  padding:20px 0;
}
.faq__question {
  font-weight:700;
  font-size:1rem;
  color:var(--gray-900);
  margin-bottom:10px;
  display:flex;
  align-items:flex-start;
  gap:10px;
}
.faq__question::before {
  content:'Q';
  flex-shrink:0;
  width:26px; height:26px;
  background:var(--blue-600);
  color:var(--white);
  border-radius:6px;
  font-size:.78rem;
  font-weight:800;
  display:flex;
  align-items:center;
  justify-content:center;
  margin-top:1px;
}
.faq__answer { font-size:.92rem; color:var(--gray-500); line-height:1.7; padding-left:36px; }

/* ── FOOTER ── */
.footer {
  background:var(--blue-900);
  color:rgba(255,255,255,.65);
  padding:56px 0 32px;
}
.footer__inner {
  max-width:1100px;
  margin:0 auto;
  padding:0 24px;
}
.footer__top {
  display:grid;
  grid-template-columns:2fr 1fr 1fr 1fr;
  gap:40px;
  margin-bottom:48px;
}
.footer__brand { display:flex; align-items:center; gap:10px; margin-bottom:14px; }
.footer__logo-img { width:32px; height:32px; }
.footer__brand-name { font-size:1.05rem; font-weight:800; color:var(--white); }
.footer__tagline { font-size:.88rem; line-height:1.65; margin-bottom:20px; }
.footer__col-title { font-size:.85rem; font-weight:700; color:var(--white); margin-bottom:14px; text-transform:uppercase; letter-spacing:.05em; }
.footer__col-links { display:flex; flex-direction:column; gap:10px; }
.footer__col-links a { font-size:.88rem; transition:color var(--transition); }
.footer__col-links a:hover { color:var(--white); }
.footer__bottom {
  border-top:1px solid rgba(255,255,255,.1);
  padding-top:24px;
  display:flex;
  justify-content:space-between;
  align-items:center;
  gap:16px;
  flex-wrap:wrap;
  font-size:.82rem;
}
.footer__bottom-links { display:flex; gap:18px; }
.footer__bottom-links a:hover { color:var(--white); }

/* ── RESPONSIVE ── */
@media (max-width:900px) {
  .hero__inner { grid-template-columns:1fr; gap:40px; }
  .hero__visual { justify-content:center; }
  .hero__card { max-width:100%; }
  .stats-bar__inner { grid-template-columns:repeat(2,1fr); }
  .features__grid { grid-template-columns:repeat(2,1fr); }
  .split__inner { grid-template-columns:1fr; gap:36px; }
  .split--reverse .split__inner { direction:ltr; }
  .steps__grid { grid-template-columns:repeat(2,1fr); }
  .testimonials__grid { grid-template-columns:1fr 1fr; }
  .footer__top { grid-template-columns:1fr 1fr; gap:28px; }
}
@media (max-width:640px) {
  .nav__links { display:none; }
  .stats-bar__inner { grid-template-columns:1fr 1fr; }
  .features__grid { grid-template-columns:1fr; }
  .steps__grid { grid-template-columns:1fr; }
  .testimonials__grid { grid-template-columns:1fr; }
  .footer__top { grid-template-columns:1fr; }
  .footer__bottom { flex-direction:column; text-align:center; }
  .hero__actions { flex-direction:column; align-items:flex-start; }
  .cta-banner__actions { flex-direction:column; align-items:center; }
}
@media (max-width:390px) {
  h1 { font-size:1.8rem; }
  h2 { font-size:1.4rem; }
  .hero { padding:64px 0 48px; }
  .hero__stat-row { flex-direction:column; }
}