:root {
  --text: #111827;
  --muted: #6b7280;
  --bg: #ffffff;
  --accent: #1e40af;
  --accent-light: #eff6ff;
  --border: #e5e7eb;
  --section-bg: #eef2f7;
  --radius: 12px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

body {
  font: 17px/1.7 system-ui, -apple-system, "Segoe UI", sans-serif;
  color: var(--text);
  background: var(--bg);
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 1.5rem;
}

/* ── HERO LOGO ── */
.hero-logo {
  font-size: 1.3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  color: #fff;
  text-decoration: none;
}
.hero-logo:hover { text-decoration: none; opacity: 0.8; }

/* ── MAIN ── */
main { max-width: none; margin: 0; padding: 0; }

/* ── BUTTONS ── */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9375rem;
  text-decoration: none;
  transition: opacity 0.15s, transform 0.15s;
  cursor: pointer;
  border: none;
}
.btn:hover { opacity: 0.87; text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: #fff; }

/* ── HERO ── */
/* ── HERO ── */
.hero {
  background-color: #0f172a;
  background-image:
    radial-gradient(circle, rgba(255,255,255,0.07) 1px, transparent 1px),
    linear-gradient(140deg, #0f172a 0%, #1e3a5f 60%, #1e40af 100%);
  background-size: 22px 22px, 100% 100%;
  color: #fff;
  min-height: 50vh;
  display: flex;
  flex-direction: column;
}
.hero-topbar {
  max-width: 1100px;
  width: 100%;
  margin: 0 auto;
  padding: 2rem 1.5rem;
}
.hero-content {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 0 1.5rem 6rem;
}
.hero-content h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  margin-bottom: 1.75rem;
  color: rgba(255,255,255,0.55);
}
.hero-highlight {
  background: linear-gradient(90deg, #fff 0%, #93c5fd 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}
.hero-content p {
  font-size: 1rem;
  color: rgba(255,255,255,0.45);
  max-width: 400px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-weight: 500;
}

/* ── INTRO ── */
.section-intro {
  padding: 5.5rem 1.5rem;
  text-align: center;
  background: var(--bg);
}
.section-intro .eyebrow {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.section-intro h2 {
  font-size: clamp(1.625rem, 3.5vw, 2.375rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
}
.section-intro p {
  color: var(--muted);
  max-width: 580px;
  margin: 0 auto;
  font-size: 1.0625rem;
}

/* ── PRODUCT SECTIONS ── */
.product-section { padding: 5rem 1.5rem; }
.product-section:nth-child(odd) { background: var(--section-bg); }
.product-section:nth-child(even) { background: var(--bg); }

.product-inner {
  max-width: 1100px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 5rem;
  align-items: center;
}
.product-section:nth-child(even) .product-inner { direction: rtl; }
.product-section:nth-child(even) .product-content { direction: ltr; }

.product-content .eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 0.75rem;
}
.product-content h2 {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 1rem;
  line-height: 1.2;
}
.product-content p {
  color: var(--muted);
  margin-bottom: 1.75rem;
  font-size: 1.0625rem;
  line-height: 1.75;
}
.product-visual {
  border-radius: 20px;
  background: var(--accent-light);
  min-height: 300px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 6rem;
  direction: ltr;
  border: 1px solid rgba(30,64,175,0.1);
}

/* ── ABOUT ── */
.about-section {
  padding: 6rem 1.5rem;
  background: var(--bg);
}
.about-inner {
  max-width: 640px;
  margin: 0 auto;
}
.about-text .eyebrow {
  font-size: 0.8125rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--accent);
  margin-bottom: 1rem;
}
.about-text h2 {
  font-size: clamp(1.625rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  margin-bottom: 1.25rem;
  line-height: 1.2;
}
.about-text p {
  color: var(--muted);
  font-size: 1.0625rem;
  margin-bottom: 1rem;
}

/* ── CONTACT ── */
.contact-section {
  padding: 6rem 1.5rem;
  background: var(--section-bg);
}
.contact-section h2 {
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  font-weight: 800;
  letter-spacing: -0.025em;
  text-align: center;
  margin-bottom: 0.75rem;
}
.contact-section .sub {
  text-align: center;
  color: var(--muted);
  font-size: 1.0625rem;
  margin-bottom: 2.5rem;
}
.contact-form {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 1.125rem;
}
.form-group { display: flex; flex-direction: column; gap: 0.375rem; }
.form-group label { font-size: 0.875rem; font-weight: 600; color: var(--text); }
.form-group input,
.form-group textarea {
  padding: 0.8125rem 1rem;
  border: 1.5px solid var(--border);
  border-radius: 8px;
  font-size: 1rem;
  font-family: inherit;
  background: #fff;
  color: var(--text);
  transition: border-color 0.15s;
}
.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--accent);
}
.form-group textarea { min-height: 150px; resize: vertical; }
.contact-form .btn {
  background: var(--accent);
  color: #fff;
  align-self: flex-start;
  padding: 0.875rem 2.25rem;
  font-size: 1rem;
}

/* ── SITE FOOTER ── */
.site-footer {
  background: #0f172a;
  color: rgba(255,255,255,0.65);
  padding: 4rem 1.5rem 2rem;
}
.footer-inner {
  max-width: 1100px;
  margin: 0 auto 3rem;
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 3rem;
}
.footer-brand .logo {
  font-size: 1.4rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.03em;
  margin-bottom: 0.625rem;
}
.footer-brand p { font-size: 0.9rem; color: rgba(255,255,255,0.45); line-height: 1.6; }
.footer-col h3 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: rgba(255,255,255,0.4);
  margin-bottom: 1rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: 0.625rem; }
.footer-col a { color: rgba(255,255,255,0.65); font-size: 0.9375rem; text-decoration: none; }
.footer-col a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: 1.75rem;
  font-size: 0.8125rem;
  color: rgba(255,255,255,0.35);
  max-width: 1100px;
  margin: 0 auto;
}

/* ── NOT FOUND ── */
.not-found { max-width: 48rem; margin: 0 auto; padding: 4rem 1.5rem; }
.not-found h1 { font-size: 2rem; margin-bottom: 1rem; }

/* ── RESPONSIVE ── */
@media (max-width: 820px) {
  .product-inner { grid-template-columns: 1fr; gap: 2.5rem; direction: ltr !important; }
  .product-visual { min-height: 200px; font-size: 4rem; }
  .footer-inner { grid-template-columns: 1fr; gap: 2rem; }
}
@media (max-width: 600px) {
  .hero-topbar { padding: 1.5rem; }
}