/* HustleKit — hand-written stylesheet. No frameworks. System font stack for speed. */

:root {
  --bg: #ffffff;
  --bg-soft: #f8fafc;
  --bg-tint: #eef2ff;
  --text: #0f172a;
  --muted: #64748b;
  --accent: #4f46e5;
  --accent-dark: #4338ca;
  --accent-soft: #eef2ff;
  --border: #e2e8f0;
  --card: #ffffff;
  --radius: 14px;
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.08), 0 4px 16px rgba(15, 23, 42, 0.06);
  --max-w: 1120px;
  --prose-w: 740px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue",
    Arial, "Noto Sans", sans-serif, "Apple Color Emoji", "Segoe UI Emoji";
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

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

.container { max-width: var(--max-w); margin: 0 auto; padding: 0 20px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  height: 64px;
}
.logo { font-size: 1.45rem; font-weight: 800; letter-spacing: -0.02em; color: var(--text); }
.logo:hover { text-decoration: none; }
.logo .dot { color: var(--accent); }
.nav { display: flex; gap: 28px; align-items: center; }
.nav a { color: var(--text); font-weight: 600; font-size: 0.98rem; }
.nav a:hover { color: var(--accent); text-decoration: none; }
.nav a.active { color: var(--accent); }
.nav-toggle {
  display: none; background: none; border: 1px solid var(--border);
  border-radius: 8px; padding: 8px 12px; font-size: 1.1rem; cursor: pointer; color: var(--text);
}

/* ---------- Hero ---------- */
.hero {
  background: linear-gradient(135deg, #eef2ff 0%, #f8fafc 60%, #ffffff 100%);
  border-bottom: 1px solid var(--border);
  padding: 72px 0 64px;
}
.hero-badge {
  display: inline-block; background: var(--accent-soft); color: var(--accent-dark);
  font-size: 0.82rem; font-weight: 700; padding: 6px 14px; border-radius: 999px;
  margin-bottom: 18px; letter-spacing: 0.02em;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3.1rem); line-height: 1.15;
  letter-spacing: -0.03em; max-width: 720px; margin-bottom: 16px;
}
.hero h1 .accent { color: var(--accent); }
.hero p.lead { font-size: 1.15rem; color: var(--muted); max-width: 640px; margin-bottom: 28px; }
.btn {
  display: inline-block; background: var(--accent); color: #fff;
  padding: 12px 26px; border-radius: 10px; font-weight: 700; font-size: 1rem;
  border: none; cursor: pointer; transition: background 0.15s ease, transform 0.15s ease;
}
.btn:hover { background: var(--accent-dark); text-decoration: none; color: #fff; transform: translateY(-1px); }
.btn-secondary {
  background: #fff; color: var(--text); border: 1px solid var(--border); margin-left: 12px;
}
.btn-secondary:hover { background: var(--bg-soft); color: var(--text); }
.hero-ctas { display: flex; flex-wrap: wrap; gap: 4px; align-items: center; }
.hero-stats { display: flex; gap: 36px; margin-top: 36px; flex-wrap: wrap; }
.hero-stats .stat strong { display: block; font-size: 1.5rem; letter-spacing: -0.02em; }
.hero-stats .stat span { color: var(--muted); font-size: 0.9rem; }

/* ---------- Sections ---------- */
.section { padding: 64px 0; }
.section-alt { background: var(--bg-soft); }
.section-head { display: flex; align-items: baseline; justify-content: space-between; margin-bottom: 28px; flex-wrap: wrap; gap: 12px; }
.section-head h2 { font-size: 1.7rem; letter-spacing: -0.02em; }
.section-head p { color: var(--muted); }

/* Category filter chips */
.chips { display: flex; gap: 10px; flex-wrap: wrap; margin-bottom: 28px; }
.chip {
  border: 1px solid var(--border); background: #fff; color: var(--text);
  padding: 8px 18px; border-radius: 999px; font-size: 0.92rem; font-weight: 600;
  cursor: pointer; transition: all 0.15s ease;
}
.chip:hover { border-color: var(--accent); color: var(--accent); }
.chip.active { background: var(--accent); border-color: var(--accent); color: #fff; }

/* ---------- Cards ---------- */
.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 24px; }
.card {
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow); }
.card:hover a.card-title-link { text-decoration: none; }
.card-body { padding: 22px; display: flex; flex-direction: column; flex: 1; }
.card-kicker {
  display: inline-block; font-size: 0.75rem; font-weight: 800; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--accent-dark); background: var(--accent-soft);
  padding: 4px 12px; border-radius: 999px; margin-bottom: 12px; align-self: flex-start;
}
.card h3 { font-size: 1.18rem; line-height: 1.4; letter-spacing: -0.01em; margin-bottom: 10px; }
.card h3 a { color: var(--text); }
.card h3 a:hover { color: var(--accent); }
.card p.excerpt { color: var(--muted); font-size: 0.95rem; flex: 1; margin-bottom: 16px; }
.card-meta { display: flex; gap: 12px; align-items: center; font-size: 0.83rem; color: var(--muted); }
.card-meta .dot-sep::before { content: "·"; margin-right: 12px; }

/* Featured card */
.featured {
  display: grid; grid-template-columns: 1.1fr 1fr; gap: 0;
  background: var(--card); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; margin-bottom: 48px;
}
.featured-visual {
  background: linear-gradient(135deg, #4f46e5 0%, #7c3aed 55%, #a855f7 100%);
  color: #fff; padding: 48px 40px; display: flex; flex-direction: column; justify-content: center;
}
.featured-visual .eyebrow { font-size: 0.8rem; font-weight: 800; letter-spacing: 0.1em; text-transform: uppercase; opacity: 0.85; margin-bottom: 14px; }
.featured-visual h3 { font-size: 1.6rem; line-height: 1.3; letter-spacing: -0.02em; }
.featured-body { padding: 40px; display: flex; flex-direction: column; justify-content: center; }
.featured-body p { color: var(--muted); margin: 14px 0 22px; }

/* ---------- About blurb / newsletter ---------- */
.split { display: grid; grid-template-columns: 1fr 1fr; gap: 48px; align-items: center; }
.split h2 { font-size: 1.7rem; letter-spacing: -0.02em; margin-bottom: 14px; }
.split p { color: var(--muted); margin-bottom: 14px; }
.newsletter-band {
  background: linear-gradient(135deg, #1e1b4b 0%, #312e81 100%); color: #fff;
  border-radius: 20px; padding: 56px 48px; text-align: center;
}
.newsletter-band h2 { font-size: 1.8rem; letter-spacing: -0.02em; margin-bottom: 12px; }
.newsletter-band p { color: #c7d2fe; max-width: 560px; margin: 0 auto 26px; }
.newsletter-form { display: flex; gap: 10px; max-width: 480px; margin: 0 auto; }
.newsletter-form input {
  flex: 1; padding: 13px 18px; border-radius: 10px; border: 1px solid rgba(255,255,255,0.25);
  background: rgba(255,255,255,0.1); color: #fff; font-size: 1rem;
}
.newsletter-form input::placeholder { color: #a5b4fc; }
.newsletter-form .btn { background: #fff; color: var(--accent-dark); }
.newsletter-form .btn:hover { background: #eef2ff; color: var(--accent-dark); }
.form-note { font-size: 0.82rem; color: #a5b4fc; margin-top: 14px; }
.form-success {
  background: rgba(255,255,255,0.12); border: 1px solid rgba(255,255,255,0.3);
  padding: 18px 24px; border-radius: 12px; max-width: 480px; margin: 0 auto; font-weight: 600;
}

/* ---------- Article page ---------- */
.article-hero {
  background: linear-gradient(135deg, #eef2ff 0%, #f8fafc 100%);
  border-bottom: 1px solid var(--border); padding: 56px 0 48px;
}
.article-hero .container { max-width: var(--prose-w); }
.breadcrumb { font-size: 0.88rem; color: var(--muted); margin-bottom: 18px; }
.breadcrumb a { color: var(--muted); }
.article-hero h1 { font-size: clamp(1.7rem, 4vw, 2.5rem); line-height: 1.2; letter-spacing: -0.025em; margin-bottom: 16px; }
.article-meta { display: flex; gap: 14px; flex-wrap: wrap; align-items: center; font-size: 0.9rem; color: var(--muted); }
.tag {
  display: inline-block; font-size: 0.78rem; font-weight: 700; letter-spacing: 0.04em;
  background: var(--accent-soft); color: var(--accent-dark);
  padding: 4px 12px; border-radius: 999px;
}
.prose { max-width: var(--prose-w); margin: 0 auto; padding: 48px 20px 24px; }
.prose p { margin-bottom: 1.4em; }
.prose h2 { font-size: 1.55rem; letter-spacing: -0.02em; margin: 2.2em 0 0.8em; padding-top: 0.4em; border-top: 3px solid var(--accent-soft); }
.prose h2:first-child { border-top: none; margin-top: 0; }
.prose h3 { font-size: 1.2rem; margin: 1.8em 0 0.7em; }
.prose ul, .prose ol { margin: 0 0 1.4em 1.4em; }
.prose li { margin-bottom: 0.55em; }
.prose li::marker { color: var(--accent); font-weight: 700; }
.prose strong { color: var(--text); }
.prose blockquote {
  border-left: 4px solid var(--accent); background: var(--bg-soft);
  padding: 18px 22px; border-radius: 0 12px 12px 0; margin: 1.8em 0; color: var(--text);
}
.callout {
  border: 1px solid var(--border); border-left: 4px solid var(--accent);
  background: #fff; border-radius: 12px; padding: 20px 24px; margin: 1.8em 0;
  box-shadow: var(--shadow);
}
.callout.warn { border-left-color: #f59e0b; }
.callout-title { font-weight: 800; margin-bottom: 8px; display: block; }
.prose table { width: 100%; border-collapse: collapse; margin: 1.8em 0; font-size: 0.95rem; }
.prose th, .prose td { border: 1px solid var(--border); padding: 12px 14px; text-align: left; }
.prose th { background: var(--bg-soft); font-weight: 700; }
.prose tr:nth-child(even) td { background: #fafbff; }
.toc {
  background: var(--bg-soft); border: 1px solid var(--border); border-radius: 12px;
  padding: 22px 26px; margin: 2em 0;
}
.toc strong { display: block; margin-bottom: 10px; }
.toc ol { margin: 0 0 0 1.2em; }
.toc li { margin-bottom: 6px; font-size: 0.95rem; }
.author-box {
  display: flex; gap: 18px; align-items: center; background: var(--bg-soft);
  border: 1px solid var(--border); border-radius: var(--radius); padding: 24px; margin: 3em 0 1em;
}
.author-avatar {
  width: 64px; height: 64px; border-radius: 50%; flex-shrink: 0;
  background: linear-gradient(135deg, var(--accent), #7c3aed);
  color: #fff; display: flex; align-items: center; justify-content: center;
  font-weight: 800; font-size: 1.4rem;
}
.author-box p { font-size: 0.95rem; color: var(--muted); margin: 0; }
.author-box strong { color: var(--text); }

/* Related articles */
.related { background: var(--bg-soft); border-top: 1px solid var(--border); padding: 56px 0; }
.related h2 { font-size: 1.5rem; margin-bottom: 24px; letter-spacing: -0.02em; }

/* ---------- Footer ---------- */
.site-footer { background: #0f172a; color: #cbd5e1; padding: 56px 0 28px; margin-top: 0; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px; margin-bottom: 36px; }
.site-footer .logo { color: #fff; }
.footer-tag { font-size: 0.95rem; color: #94a3b8; margin-top: 12px; max-width: 320px; }
.site-footer h4 { color: #fff; font-size: 0.95rem; margin-bottom: 16px; letter-spacing: 0.02em; }
.footer-links { list-style: none; }
.footer-links li { margin-bottom: 10px; }
.footer-links a { color: #94a3b8; font-size: 0.95rem; }
.footer-links a:hover { color: #fff; }
.footer-bottom {
  border-top: 1px solid #1e293b; padding-top: 24px; display: flex;
  justify-content: space-between; flex-wrap: wrap; gap: 12px; font-size: 0.85rem; color: #64748b;
}

/* ---------- Forms (contact) ---------- */
.form-wrap { max-width: 640px; margin: 0 auto; }
.field { margin-bottom: 20px; }
.field label { display: block; font-weight: 700; margin-bottom: 8px; font-size: 0.95rem; }
.field input, .field textarea, .field select {
  width: 100%; padding: 13px 16px; border: 1px solid var(--border); border-radius: 10px;
  font-size: 1rem; font-family: inherit; background: #fff; color: var(--text);
}
.field input:focus, .field textarea:focus, .field select:focus {
  outline: 2px solid var(--accent); border-color: var(--accent);
}
.field textarea { min-height: 150px; resize: vertical; }
.contact-success {
  background: #ecfdf5; border: 1px solid #6ee7b7; color: #065f46;
  padding: 22px 26px; border-radius: 12px; font-weight: 600;
}

/* ---------- Page hero (about/contact/privacy) ---------- */
.page-hero { background: linear-gradient(135deg, #eef2ff 0%, #f8fafc 100%); border-bottom: 1px solid var(--border); padding: 56px 0 44px; }
.page-hero h1 { font-size: clamp(1.8rem, 4vw, 2.6rem); letter-spacing: -0.025em; margin-bottom: 10px; }
.page-hero p { color: var(--muted); font-size: 1.1rem; max-width: 640px; }
.page-body { max-width: var(--prose-w); margin: 0 auto; padding: 48px 20px 72px; }
.page-body h2 { font-size: 1.4rem; margin: 2em 0 0.7em; letter-spacing: -0.015em; }
.page-body p, .page-body li { margin-bottom: 1em; }
.page-body ul, .page-body ol { margin-left: 1.4em; }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .featured { grid-template-columns: 1fr; }
  .split { grid-template-columns: 1fr; gap: 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  body { font-size: 16px; }
  .nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    background: #fff; flex-direction: column; align-items: flex-start;
    padding: 12px 20px 20px; border-bottom: 1px solid var(--border); gap: 4px;
  }
  .nav.open { display: flex; }
  .nav a { padding: 10px 0; width: 100%; }
  .nav-toggle { display: block; }
  .cards { grid-template-columns: 1fr; }
  .newsletter-form { flex-direction: column; }
  .hero { padding: 52px 0 44px; }
  .section { padding: 44px 0; }
  .newsletter-band { padding: 40px 24px; }
  .footer-grid { grid-template-columns: 1fr; }
  .featured-visual { padding: 36px 28px; }
  .featured-body { padding: 28px; }
  .prose table { font-size: 0.85rem; }
  .prose th, .prose td { padding: 8px 10px; }
}