:root {
  --bg: #0b0f17;
  --card: rgba(255, 255, 255, 0.04);
  --border: rgba(255, 255, 255, 0.08);
  --text: rgba(255, 255, 255, 0.92);
  --muted: rgba(255, 255, 255, 0.68);
  --accent: #7c5cff;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
}

body {
  background: radial-gradient(circle at top, rgba(124, 92, 255, 0.12), transparent 55%),
              radial-gradient(circle at bottom, rgba(0, 240, 255, 0.08), transparent 55%),
              var(--bg);
  color: var(--text);
  line-height: 1.6;
}

.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

a {
  color: var(--text);
  text-decoration: none;
}

ul {
  padding-left: 18px;
}

.section {
  padding: 80px 0;
}

.section-title {
  font-size: 2rem;
  margin-bottom: 10px;
}

.section-subtitle {
  color: var(--muted);
  margin-bottom: 26px;
  max-width: 70ch;
}

/* NAV */
.nav {
  position: sticky;
  top: 0;
  z-index: 999;
  backdrop-filter: blur(14px);
  background: rgba(10, 14, 22, 0.6);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
}

.logo {
  font-size: 1.2rem;
  font-weight: 700;
}

.accent {
  color: var(--accent);
}

.nav-links {
  display: flex;
  gap: 18px;
}

.nav-links a {
  color: var(--muted);
  transition: 0.2s;
}

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

.menu-btn {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.4rem;
  cursor: pointer;
}

.mobile-menu {
  display: none;
  flex-direction: column;
  padding: 10px 0 18px 0;
  border-top: 1px solid var(--border);
}

.mobile-menu a {
  padding: 12px 0;
  color: var(--muted);
}

/* HERO */
.hero {
  padding: 90px 0 60px 0;
}

.hero-inner {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: start;
}

.tag {
  display: inline-block;
  padding: 7px 12px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  border-radius: 999px;
  color: var(--muted);
  margin-bottom: 16px;
  font-size: 0.92rem;
}

.hero h1 {
  font-size: 2.8rem;
  line-height: 1.15;
  margin-bottom: 14px;
}

.subtext {
  color: var(--muted);
  margin-bottom: 18px;
  max-width: 70ch;
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 22px;
}

.btn {
  padding: 11px 16px;
  border-radius: 14px;
  border: 1px solid var(--border);
  font-weight: 600;
  transition: 0.2s;
  display: inline-block;
}

.btn.primary {
  background: var(--accent);
  border: 1px solid rgba(124, 92, 255, 0.6);
}

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

.btn.secondary {
  background: rgba(255, 255, 255, 0.05);
}

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

.btn.ghost {
  background: transparent;
  color: var(--muted);
}

.btn.ghost:hover {
  color: var(--text);
}

.quick-info {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}

.quick-card {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
}

.quick-title {
  color: var(--muted);
  font-size: 0.9rem;
}

.quick-value {
  font-weight: 700;
  margin-top: 4px;
}

/* PROFILE CARD */
.profile-card {
  border-radius: 22px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  padding: 22px;
}

.avatar {
  height: 70px;
  width: 70px;
  border-radius: 18px;
  background: linear-gradient(135deg, rgba(124, 92, 255, 0.8), rgba(0, 240, 255, 0.3));
  margin-bottom: 14px;
  border: 1px solid var(--border);
}

.profile-card h2 {
  margin-bottom: 8px;
}

.profile-card p {
  color: var(--muted);
  margin-bottom: 14px;
}

.profile-links {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.profile-links a {
  color: var(--muted);
  font-weight: 600;
}

.profile-links a:hover {
  color: var(--text);
}

/* GRID + CARDS */
.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.card {
  padding: 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  transition: 0.2s;
}

.card:hover {
  transform: translateY(-2px);
  background: rgba(255, 255, 255, 0.045);
}

.card h3 {
  margin-bottom: 10px;
  font-size: 1.1rem;
}

.card ul li {
  color: var(--muted);
  margin-bottom: 6px;
}

.meta {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  margin-top: 10px;
}

.pill {
  font-size: 0.85rem;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid var(--border);
  color: var(--muted);
}

.card p {
  color: var(--muted);
}

/* WRITEUPS HEADER */
.writeups-head {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  align-items: flex-end;
  flex-wrap: wrap;
}

.filters {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
}

.filters input,
.filters select {
  padding: 10px 12px;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text);
  outline: none;
}

.center {
  display: flex;
  justify-content: center;
  margin-top: 26px;
}

/* CONTACT */
.contact-card {
  padding: 18px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.03);
  display: grid;
  gap: 14px;
}

.contact-label {
  color: var(--muted);
  font-size: 0.9rem;
}

.contact-value a {
  font-weight: 700;
}

.footer {
  margin-top: 26px;
  color: var(--muted);
  font-size: 0.9rem;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
  }

  .grid-3 {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }

  .menu-btn {
    display: block;
  }

  .mobile-menu.active {
    display: flex;
  }

  .hero h1 {
    font-size: 2.2rem;
  }
}