/* BitWaiz - Dark tech, purple accent */
@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;1,400&family=Inter:wght@400;500;600&display=swap');

:root {
  --bg: #000000;
  --bg-card: #0d0d0d;
  --fg: #ffffff;
  --fg-muted: #a0a0a0;
  --accent: #a855f7;
  --accent-light: #c084fc;
  --gradient: linear-gradient(135deg, #a855f7 0%, #ec4899 100%);
  --radius: 16px;
  --radius-lg: 24px;
}

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

body {
  font-family: 'Inter', -apple-system, sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  min-height: 100vh;
}

h1, h2, h3 { font-family: 'Playfair Display', Georgia, serif; }
h1 { font-size: 2.5rem; font-weight: 600; }
h2 { font-size: 1.75rem; margin: 2rem 0 1rem; }
h3 { font-size: 1.25rem; }

.accent { color: var(--accent-light); font-style: italic; }

/* Nav */
.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
  flex-wrap: wrap;
  gap: 1rem;
}

.logo {
  font-family: 'Playfair Display', serif;
  font-size: 1.5rem;
  font-weight: 600;
  color: var(--fg);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}

.nav-links a {
  color: var(--fg-muted);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}

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

.btn {
  display: inline-block;
  padding: 0.6rem 1.5rem;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  transition: opacity 0.2s;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient);
  color: white;
}

.btn-outline {
  background: transparent;
  border: 2px solid white;
  color: white;
}

.btn-primary:hover, .btn-outline:hover { opacity: 0.9; }

/* Hero */
.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
  position: relative;
}

.hero::before {
  content: '';
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 80%;
  height: 80%;
  background: radial-gradient(ellipse, rgba(168, 85, 247, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.hero-badge {
  display: inline-block;
  padding: 0.35rem 1rem;
  background: rgba(168, 85, 247, 0.2);
  border-radius: 999px;
  font-size: 0.8rem;
  color: var(--accent-light);
  margin-bottom: 1.5rem;
}

.hero h1 { margin-bottom: 1rem; }
.hero-sub { color: var(--fg-muted); max-width: 500px; margin-bottom: 2rem; font-size: 1rem; }

.hero-ctas { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: 2rem; }
.hero-stats { display: flex; gap: 2rem; color: var(--fg-muted); font-size: 0.9rem; }

/* Section */
.section {
  max-width: 1200px;
  margin: 0 auto;
  padding: 4rem 2rem;
}

.section-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 2rem;
  flex-wrap: wrap;
  gap: 1rem;
}

.section-header h2 { margin: 0; }
.section-header a { color: var(--accent-light); text-decoration: none; font-weight: 500; }
.section-header a:hover { text-decoration: underline; }

/* Cards */
.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1.5rem;
}

.card {
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.06);
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}

.card:hover {
  border-color: rgba(168, 85, 247, 0.3);
}

.card a { text-decoration: none; color: inherit; }
.card h3 { font-size: 1.1rem; margin-bottom: 0.5rem; }
.card p { color: var(--fg-muted); font-size: 0.9rem; line-height: 1.5; }
.card code { background: rgba(255,255,255,0.1); padding: 0.2em 0.4em; border-radius: 4px; font-size: 0.85em; }

/* About */
.about {
  background: var(--bg-card);
  border-radius: var(--radius-lg);
  padding: 3rem;
  border: 1px solid rgba(255,255,255,0.06);
}

.about h2 { margin-top: 0; margin-bottom: 1.5rem; }
.about-content { color: var(--fg-muted); margin-bottom: 2rem; }
.about-content strong { color: var(--fg); }

.expertise-grid {
  display: grid;
  gap: 1rem;
  margin-top: 1.5rem;
}

.expertise-item {
  padding: 1rem;
  background: rgba(0,0,0,0.3);
  border-radius: var(--radius);
  border-left: 3px solid var(--accent);
}

.expertise-item strong { color: var(--accent-light); display: block; margin-bottom: 0.25rem; }
.expertise-item span { color: var(--fg-muted); font-size: 0.9rem; }

/* Article page */
.article-layout { max-width: 800px; margin: 0 auto; padding: 2rem; }

.tone-btns { display: flex; gap: 0.5rem; margin: 2rem 0; flex-wrap: wrap; }

.tone-btn {
  padding: 0.5rem 1.25rem;
  background: var(--bg-card);
  border: 1px solid rgba(255,255,255,0.1);
  color: var(--fg-muted);
  cursor: pointer;
  border-radius: 999px;
  font-size: 0.9rem;
  transition: all 0.2s;
}

.tone-btn:hover, .tone-btn.active {
  border-color: var(--accent);
  color: var(--accent-light);
  background: rgba(168, 85, 247, 0.1);
}

.tone-content { display: none; }
.tone-content.active { display: block; }

.tone-content h1 { font-size: 1.75rem; }
.tone-content h2 { font-size: 1.3rem; margin: 1.5em 0 0.5em; }
.tone-content p { margin: 0.8em 0; }
.tone-content img { max-width: 100%; border-radius: var(--radius); margin: 1em 0; }
.tone-content a { color: var(--accent-light); }
.article-back { color: var(--fg-muted); text-decoration: none; font-size: 0.9rem; display: inline-block; margin-bottom: 1rem; }
.article-back:hover { color: var(--fg); }

/* Footer */
.footer {
  text-align: center;
  padding: 3rem 2rem;
  color: var(--fg-muted);
  font-size: 0.9rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  margin-top: 4rem;
}