/* =========
   Base
   ========= */
:root{
  --bg: #0b0e13;
  --bg-soft: #0f131a;
  --surface: #121826;
  --border: #1c2230;
  --text: #e6ebff;
  --muted: #a7b0c3;
  --primary: #831e1e;       /* button/links */
  --primary-strong: #d11414;
  --accent: #9ef0ff;        /* subtle glow */
  --shadow: 0 10px 24px rgb(171 15 15 / 25%);
  --radius: 16px;
}

* { box-sizing: border-box; }
html, body { height: 100%; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Liberation Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1000px 500px at 10% -10%, rgba(110,168,254,0.20), transparent 60%),
    radial-gradient(900px 600px at 120% 10%, rgba(158,240,255,0.12), transparent 60%),
    var(--bg);
}

/* =========
   Header / Nav
   ========= */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: linear-gradient(180deg, rgba(13,15,20,.9), rgba(13,15,20,.75));
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}

.container {
  max-width: 1200px;
  padding: 0 20px;
  margin: 0 auto;
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  min-height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 8px 0;
  text-decoration: none;
}

.brand img {
  height: 44px;            /* Logo on far left with padding */
  width: auto;
  display: block;
  border-radius: 8px;
}

.brand-name {
  font-family: "Russo One", Inter, sans-serif;
  font-size: 1.1rem;
  letter-spacing: .4px;
  color: var(--text);
  opacity: .92;
}

/* Right-aligned links with padding */
.nav-links {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 8px 0;
}

.nav-links a {
  color: var(--text);
  text-decoration: none;
  font-weight: 600;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid transparent;
  transition: border-color .2s ease, background-color .2s ease, transform .08s ease;
}

.nav-links a:hover {
  border-color: var(--border);
  background: rgba(255,255,255,.03);
}

#nav-toggle { display: none; }

/* Mobile hamburger */
.hamburger {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 10px;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  border: 1px solid var(--border);
}

.hamburger span {
  display: block;
  width: 18px;
  height: 2px;
  background: var(--text);
  margin: 3px 0;
}

/* =========
   Page
   ========= */
.page { min-height: calc(100vh - 72px); }

.hero {
  display: grid;
  place-items: center;
  padding: 72px 20px;
}

.hero-card {
  width: 100%;
  max-width: 820px;
  background: linear-gradient(180deg, rgba(26,34,52,.9), rgba(18,24,38,.92));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 28px;
  position: relative;
}

.hero-card::before {
  content: "";
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  pointer-events: none;
  background: radial-gradient(600px 120px at 50% 0%, rgba(110,168,254,.15), transparent 60%);
  z-index: 0;
}

.hero-card > * { position: relative; z-index: 1; }

.hero-card h1 {
  font-family: "Russo One", Inter, sans-serif;
  font-size: clamp(1.6rem, 1.1rem + 2vw, 2.2rem);
  margin: 0 0 10px;
  letter-spacing: .5px;
}

.hero-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.65;
  font-size: 1.05rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin: 18px 0 6px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-soft);
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  transition: transform .08s ease, box-shadow .15s ease, background .2s ease, border-color .2s ease;
}

.btn:hover { transform: translateY(-1px); }

.btn-primary {
  background: linear-gradient(180deg, var(--primary), var(--primary-strong));
  border-color: rgba(255,255,255,.15);
  box-shadow: var(--shadow);
}

.hero-footnote {
  margin-top: 14px;
  font-size: .95rem;
  color: var(--muted);
  opacity: .9;
}

/* =========
   Footer
   ========= */
.footer {
  border-top: 1px solid var(--border);
  background: #0d1118;
  padding: 20px 0;
  color: var(--muted);
  font-size: .95rem;
}

/* =========
   Responsive
   ========= */
@media (max-width: 860px) {
  .brand-name { display: none; } /* keep the logo clean on small screens */

  .hamburger { display: inline-flex; }
  .nav-links {
    position: absolute;
    top: 72px;
    right: 0;
    left: 0;
    margin: 0;
    padding: 14px 20px 22px;
    flex-direction: column;
    align-items: stretch;
    gap: 8px;
    background: linear-gradient(180deg, rgba(13,15,20,.98), rgba(13,15,20,.92));
    border-bottom: 1px solid var(--border);
    transform-origin: top center;
    transform: scaleY(0);
    opacity: 0;
    pointer-events: none;
    transition: transform .15s ease, opacity .15s ease;
  }
  #nav-toggle:checked ~ .nav-links {
    transform: scaleY(1);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-links a {
    border-radius: 10px;
    padding: 12px 14px;
    background: rgba(255,255,255,.03);
  }
}