/* ── Custom Properties ─────────────────────────────────────── */
:root {
  --color-bg:          #0A0F1A;
  --color-card-bg:     #0D1520;
  --color-card-border: #1A2A3A;
  --color-primary:     #1A6DB5;
  --color-accent:      #5AB030;
  --color-text:        #E4E1E9;
  --color-muted:       #8B919C;
  --color-navbar-bg:   rgba(10, 15, 26, 0.72);

  --font-base: 'Inter', system-ui, sans-serif;

  --radius-card: 14px;
  --radius-icon: 10px;

  --spacing-xs:  8px;
  --spacing-sm:  16px;
  --spacing-md:  24px;
  --spacing-lg:  48px;
  --spacing-xl:  80px;
  --spacing-xxl: 128px;

  --max-width: 900px;
  --navbar-h:  64px;

  --transition-card: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  background-color: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-base);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  min-height: 100dvh;
  overflow-x: hidden;
}

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

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

/* ── Ambient Glow ──────────────────────────────────────────── */
body::before,
body::after {
  content: '';
  position: fixed;
  width: 560px;
  height: 560px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(26, 109, 181, 0.12) 0%, transparent 70%);
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
}
body::before { top: -180px; left: -120px; }
body::after  { bottom: -180px; right: -120px; }

/* ── Navbar ────────────────────────────────────────────────── */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--navbar-h);
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--color-card-border);
  background: var(--color-navbar-bg);
  transition: background 0.3s ease, box-shadow 0.3s ease;
}

.navbar.scrolled {
  background: rgba(8, 12, 22, 0.92);
  box-shadow: 0 4px 24px rgba(0, 0, 0, 0.4);
}

.navbar-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md);
  height: 100%;
  display: flex;
  align-items: center;
}

.navbar-brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.navbar-logo {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.brand-name {
  font-size: 18px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  padding: calc(var(--navbar-h) + var(--spacing-xl)) var(--spacing-md) var(--spacing-xl);
  max-width: var(--max-width);
  margin: 0 auto;
}

.hero-logo-wrap {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  background: rgba(26, 109, 181, 0.08);
  border: 1px solid rgba(26, 109, 181, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  overflow: hidden;
}

.hero-logo {
  width: 80px;
  height: 80px;
  object-fit: cover;
  border-radius: 50%;
  filter: drop-shadow(0 0 20px rgba(26, 109, 181, 0.67));
}

.hero-title {
  font-size: clamp(40px, 6vw, 56px);
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.1;
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.hero-tagline {
  font-size: 17px;
  color: var(--color-muted);
  max-width: 420px;
  line-height: 1.7;
}

/* ── Products Grid ─────────────────────────────────────────── */
.products {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--spacing-md) var(--spacing-xxl);
}

.products-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--spacing-md);
}

/* ── Card ──────────────────────────────────────────────────── */
.card {
  background: var(--color-card-bg);
  border: 1px solid var(--color-card-border);
  border-radius: var(--radius-card);
  padding: var(--spacing-lg) var(--spacing-md) var(--spacing-md);
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
  transition: var(--transition-card);

  /* fade-in-up initial state — JS will toggle .visible */
  opacity: 0;
  transform: translateY(24px);
}

.card.visible {
  opacity: 1;
  transform: translateY(0);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow:
    0 0 0 1px rgba(26, 109, 181, 0.15),
    0 8px 32px rgba(26, 109, 181, 0.18),
    inset 0 1px 0 rgba(255, 255, 255, 0.06);
  transform: translateY(-4px);
}

.card-header {
  display: flex;
  align-items: center;
  gap: 12px;
}

.card-icon-wrap {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-icon);
  background: rgba(26, 109, 181, 0.1);
  border: 1px solid rgba(26, 109, 181, 0.2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  flex-shrink: 0;
  line-height: 1;
}

.card-title {
  font-size: 17px;
  font-weight: 600;
  color: var(--color-text);
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: 14px;
  color: var(--color-muted);
  line-height: 1.65;
  flex: 1;
}

.card-link.visit-link {
  display: inline-block;
  font-size: 14px;
  font-weight: 500;
  color: var(--color-accent);
  margin-top: var(--spacing-xs);
  letter-spacing: 0;
  transition: letter-spacing 0.2s ease, text-decoration 0.2s ease;
}

.card-link.visit-link:hover {
  text-decoration: underline;
  letter-spacing: 0.04em;
}

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  position: relative;
  z-index: 1;
  border-top: 1px solid var(--color-card-border);
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: var(--spacing-lg) var(--spacing-md);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  text-align: center;
}

.footer-brand {
  font-size: 16px;
  font-weight: 700;
  color: var(--color-text);
}

.footer-copy {
  font-size: 13px;
  color: var(--color-muted);
}

.footer-nav {
  display: flex;
  gap: var(--spacing-md);
}

.footer-nav a {
  font-size: 13px;
  color: var(--color-muted);
  transition: color 0.2s ease;
}

.footer-nav a:hover {
  color: var(--color-text);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 640px) {
  .products-grid {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: calc(var(--navbar-h) + var(--spacing-lg));
    padding-bottom: var(--spacing-lg);
  }

  .footer-inner {
    flex-direction: column;
  }
}