:root {
  --bg-dark: #05070b;
  --bg-alt: #0f1117;
  --accent-blue: #1f8bff;
  --accent-light: #e5f1ff;
  --text-main: #f5f5f5;
  --text-muted: #b3b3b3;
  --card-bg: #151823;
  --border-subtle: #262a36;
  --font-main: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font-main);
  background: radial-gradient(circle at top, #151823 0, #05070b 55%, #000 100%);
  color: var(--text-main);
  line-height: 1.6;
}

/* Layout */

.container {
  width: 90%;
  max-width: 1100px;
  margin: 0 auto;
}

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(5, 7, 11, 0.95);
  border-bottom: 1px solid var(--border-subtle);
  backdrop-filter: blur(10px);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.logo {  
  height: 280px;
}

.main-nav a {
  color: var(--text-muted);
  text-decoration: none;
  margin-left: 1.5rem;
  font-size: 0.95rem;
}

.main-nav a:hover {
  color: var(--accent-blue);
}

/* Hero */

.hero {
  padding: 3.5rem 0 3rem;
}

.hero-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 2.5rem;
}

.hero-text {
  flex: 1 1 280px;
}

.hero-text h1 {
  font-size: 2.4rem;
  margin-bottom: 0.75rem;
}

.hero-text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.hero-bullets {
  list-style: none;
  padding: 0;
  margin: 0 0 1.5rem;
}

.hero-bullets li::before {
  content: "• ";
  color: var(--accent-blue);
}

.hero-image {
  flex: 0 0 260px;
  text-align: center;
}

.hero-image img {
  max-width: 260px;
  border-radius: 999px;
  border: 2px solid var(--accent-blue);
  background: #000;
}

/* Sections */

.section {
  padding: 3rem 0;
}

.section-alt {
  background: var(--bg-alt);
}

.section h2 {
  font-size: 1.8rem;
  margin-bottom: 1.5rem;
}

/* Cards / grids */

.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--card-bg);
  border-radius: 10px;
  padding: 1.5rem;
  border: 1px solid var(--border-subtle);
}

.card h3 {
  margin-top: 0;
  margin-bottom: 0.75rem;
}

.card ul {
  padding-left: 1.1rem;
  margin: 0;
}

/* About */

.about-inner {
  max-width: 800px;
}

/* Contact */

.contact-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 2rem;
}

label {
  display: block;
  margin-bottom: 0.25rem;
  font-size: 0.9rem;
}

input,
textarea {
  width: 100%;
  padding: 0.55rem 0.6rem;
  border-radius: 6px;
  border: 1px solid var(--border-subtle);
  background: #05070b;
  color: var(--text-main);
  font-family: var(--font-main);
  font-size: 0.95rem;
  margin-bottom: 0.75rem;
}

input:focus,
textarea:focus {
  outline: 1px solid var(--accent-blue);
}

.form-note {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Buttons */

.btn-primary {
  display: inline-block;
  padding: 0.7rem 1.4rem;
  border-radius: 999px;
  background: var(--accent-blue);
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
}

.btn-primary:hover {
  background: #3a9bff;
}

/* Footer */

.site-footer {
  border-top: 1px solid var(--border-subtle);
  padding: 1.5rem 0 2rem;
  background: #05070b;
}

.footer-inner {
  text-align: center;
  color: var(--text-muted);
  font-size: 0.85rem;
}

/* Responsive */

@media (max-width: 720px) {
  .header-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.5rem;
  }

  .main-nav a {
    margin-left: 0;
    margin-right: 1rem;
  }

  .hero {
    padding-top: 2.5rem;
  }

  .hero-inner {
    flex-direction: column-reverse;
    text-align: left;
  }

  .hero-image img {
    max-width: 210px;
  }
}