/* ============================================================
   Serpulix — styles.css
   ============================================================ */

:root {
  --color-bg:         #0a0f1e;
  --color-surface:    #111827;
  --color-border:     #1e2d45;
  --color-text:       #e2e8f0;
  --color-muted:      #8a9ab5;
  --color-accent:     #e8a84c;
  --color-accent-dim: rgba(232,168,76,0.12);
  --color-link:       #7eb8f7;
  --color-white:      #ffffff;

  --font-display: "Georgia", "Times New Roman", serif;
  --font-body:    -apple-system, BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;

  --radius:    4px;
  --max-width: 1100px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 16px; scroll-behavior: smooth; }
body {
  background: var(--color-bg);
  color: var(--color-text);
  font-family: var(--font-body);
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}
img { max-width: 100%; display: block; }
a { color: var(--color-link); text-decoration: none; }
a:hover { text-decoration: underline; }
ul, ol { list-style: none; }

.container { max-width: var(--max-width); margin: 0 auto; padding: 0 1.5rem; }
.section    { padding: 5rem 0; }
.section--alt { background: var(--color-surface); padding: 5rem 0; }

h1, h2, h3, h4 { font-family: var(--font-display); font-weight: normal; line-height: 1.25; color: var(--color-white); }
h1 { font-size: clamp(2rem, 4vw, 3.25rem); letter-spacing: -0.02em; }
h2 { font-size: clamp(1.5rem, 3vw, 2.25rem); letter-spacing: -0.01em; }
h3 { font-size: clamp(1.05rem, 2vw, 1.4rem); }
h4 { font-size: 0.9rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--color-accent); font-family: var(--font-body); font-weight: 600; }

p { margin-bottom: 1.25rem; }
p:last-child { margin-bottom: 0; }
strong { color: var(--color-white); font-weight: 600; }

.eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--color-accent);
  margin-bottom: 0.9rem;
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s ease;
  text-decoration: none;
}
.btn:hover { opacity: 0.85; text-decoration: none; }
.btn-primary  { background: var(--color-accent); color: #0a0f1e; }
.btn-secondary { border: 1px solid var(--color-border); color: var(--color-text); background: transparent; }
.btn-secondary:hover { border-color: var(--color-accent); color: var(--color-accent); }
.cta-group { display: flex; gap: 1rem; flex-wrap: wrap; margin-top: 2rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(10,15,30,0.96);
  border-bottom: 1px solid var(--color-border);
  backdrop-filter: blur(8px);
}
.site-header .container {
  display: flex; align-items: center; justify-content: space-between; height: 64px;
}
.site-logo { font-family: var(--font-display); font-size: 1.3rem; color: var(--color-white); letter-spacing: -0.03em; text-decoration: none; }
.site-logo span { color: var(--color-accent); }
.site-nav { display: flex; align-items: center; gap: 1.75rem; }
.site-nav a { font-size: 0.875rem; color: var(--color-muted); font-weight: 500; text-decoration: none; transition: color 0.15s; }
.site-nav a:hover { color: var(--color-white); text-decoration: none; }
.site-nav .nav-cta { background: var(--color-accent); color: #0a0f1e; padding: 0.45rem 1.1rem; border-radius: var(--radius); font-weight: 700; }
.site-nav .nav-cta:hover { color: #0a0f1e; }
.nav-toggle { display: none; background: none; border: 1px solid var(--color-border); border-radius: var(--radius); padding: 0.4rem 0.65rem; cursor: pointer; color: var(--color-text); font-size: 1.1rem; }

@media (max-width: 768px) {
  .nav-toggle { display: block; }
  .site-nav {
    display: none; position: absolute; top: 64px; left: 0; right: 0;
    flex-direction: column; align-items: flex-start;
    background: var(--color-surface); border-bottom: 1px solid var(--color-border);
    padding: 1.5rem; gap: 1.25rem;
  }
  .site-nav.is-open { display: flex; }
}

/* Footer */
.site-footer { background: var(--color-surface); border-top: 1px solid var(--color-border); padding: 4rem 0 2rem; }
.footer-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 2.5rem; margin-bottom: 3rem; }
.footer-col h5 { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 1rem; font-family: var(--font-body); }
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 0.5rem; }
.footer-col a { font-size: 0.82rem; color: var(--color-muted); text-decoration: none; }
.footer-col a:hover { color: var(--color-text); }
.footer-bottom { border-top: 1px solid var(--color-border); padding-top: 1.5rem; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; }
.footer-brand p { font-size: 0.78rem; color: var(--color-muted); margin-bottom: 0.2rem; }
.footer-brand a { color: var(--color-muted); }
.footer-brand a:hover { color: var(--color-text); }
.footer-copy { font-size: 0.78rem; color: var(--color-muted); }

/* Breadcrumb */
.breadcrumb { padding: 0.85rem 0; border-bottom: 1px solid var(--color-border); }
.breadcrumb ol { display: flex; flex-wrap: wrap; gap: 0.3rem; list-style: none; font-size: 0.78rem; color: var(--color-muted); }
.breadcrumb li a { color: var(--color-muted); }
.breadcrumb li a:hover { color: var(--color-text); }
.breadcrumb li + li::before { content: "/"; padding-right: 0.3rem; }

/* Hero */
.hero { padding: 7rem 0 6rem; border-bottom: 1px solid var(--color-border); }
.hero-inner { max-width: 800px; }
.hero h1 { margin-bottom: 1.25rem; }
.hero .lead { font-size: clamp(1rem, 2vw, 1.2rem); color: var(--color-muted); max-width: 620px; }

/* Section head */
.section-head { max-width: 680px; margin-bottom: 3rem; }
.section-head h2 { margin-bottom: 0.75rem; }
.section-head p { color: var(--color-muted); }

/* Cards */
.card-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; }
.card { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.75rem; }
.card h3 { margin-bottom: 0.5rem; font-size: 1.05rem; }
.card p  { font-size: 0.875rem; color: var(--color-muted); margin: 0; }

/* Two-col */
.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; align-items: start; }
@media (max-width: 768px) { .two-col { grid-template-columns: 1fr; gap: 2rem; } }

/* Signal list */
.signal-list { display: grid; gap: 1.25rem; }
.signal-item { border-left: 2px solid var(--color-accent); padding-left: 1.25rem; }
.signal-item strong { display: block; font-size: 0.95rem; margin-bottom: 0.2rem; }
.signal-item p { font-size: 0.875rem; color: var(--color-muted); margin: 0; }

/* Where it fits */
.fit-block { background: var(--color-surface); border: 1px solid var(--color-border); border-radius: var(--radius); padding: 2.5rem; }
.fit-block h2 { margin-bottom: 2rem; }
.fit-items { display: grid; gap: 1rem; }
.fit-item { padding: 1.25rem; border: 1px solid var(--color-border); border-radius: var(--radius); }
.fit-item .fit-label { font-size: 0.7rem; font-weight: 700; letter-spacing: 0.1em; text-transform: uppercase; color: var(--color-muted); margin-bottom: 0.35rem; }
.fit-item p { font-size: 0.875rem; color: var(--color-muted); margin: 0; }
.fit-serpulix { background: var(--color-accent-dim); border-color: var(--color-accent); }
.fit-serpulix p { color: var(--color-text); }
.fit-serpulix .fit-label { color: var(--color-accent); }

/* CTA banner */
.cta-banner { background: var(--color-accent-dim); border: 1px solid rgba(232,168,76,0.25); border-radius: var(--radius); padding: 3rem 2.5rem; text-align: center; }
.cta-banner h2 { margin-bottom: 0.75rem; font-size: 1.75rem; }
.cta-banner p  { color: var(--color-muted); margin-bottom: 0; }
.cta-banner .cta-group { justify-content: center; }

/* Problem list */
.problem-list { display: grid; gap: 1.5rem; }
.problem-item { border-top: 1px solid var(--color-border); padding-top: 1.5rem; }
.problem-item h3 { margin-bottom: 0.5rem; font-size: 1.1rem; }
.problem-item p  { color: var(--color-muted); font-size: 0.9rem; margin: 0; }

/* Audience cards */
.audience-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.5rem; }
.audience-card { border: 1px solid var(--color-border); border-radius: var(--radius); padding: 2rem; }
.audience-card h3 { font-size: 1.1rem; margin-bottom: 0.6rem; }
.audience-card p  { font-size: 0.875rem; color: var(--color-muted); margin-bottom: 1.25rem; }
.audience-card .card-link { font-size: 0.875rem; font-weight: 600; color: var(--color-accent); text-decoration: none; }
.audience-card .card-link:hover { text-decoration: underline; }

/* Blog */
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(290px, 1fr)); gap: 1.75rem; }
.blog-card { border: 1px solid var(--color-border); border-radius: var(--radius); padding: 1.75rem; display: flex; flex-direction: column; }
.blog-card .blog-cat { font-size: 0.68rem; font-weight: 700; letter-spacing: 0.12em; text-transform: uppercase; color: var(--color-accent); margin-bottom: 0.5rem; }
.blog-card h3 { font-size: 1rem; margin-bottom: 0.6rem; }
.blog-card p  { font-size: 0.85rem; color: var(--color-muted); flex: 1; margin-bottom: 1.25rem; }
.blog-card .read-link { font-size: 0.85rem; font-weight: 600; color: var(--color-accent); text-decoration: none; }
.blog-card .read-link:hover { text-decoration: underline; }

/* Article */
.article-header { padding: 4rem 0 2rem; }
.article-header h1 { margin-bottom: 0.75rem; }
.article-meta { font-size: 0.78rem; color: var(--color-muted); margin-top: 0.5rem; }
.article-body { max-width: 700px; }
.article-body h2 { margin: 2.5rem 0 0.75rem; }
.article-body h3 { margin: 2rem 0 0.5rem; }
.article-body p  { margin-bottom: 1.25rem; }
.article-body ul, .article-body ol { padding-left: 1.25rem; margin-bottom: 1.25rem; list-style: disc; }
.article-body li { margin-bottom: 0.4rem; font-size: 0.95rem; }
.article-cta { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.related-posts { margin-top: 3rem; padding-top: 2rem; border-top: 1px solid var(--color-border); }
.related-posts h3 { font-size: 1rem; margin-bottom: 1rem; }
.related-posts ul { list-style: none; padding: 0; }
.related-posts li { margin-bottom: 0.5rem; }
.related-posts a { font-size: 0.875rem; color: var(--color-link); }

/* Form */
.form-wrap { max-width: 580px; }
.form-group { margin-bottom: 1.5rem; }
.form-group label { display: block; font-size: 0.83rem; font-weight: 600; margin-bottom: 0.4rem; }
.form-group input, .form-group select, .form-group textarea {
  width: 100%; background: var(--color-surface); border: 1px solid var(--color-border);
  border-radius: var(--radius); color: var(--color-text); font-family: var(--font-body);
  font-size: 0.95rem; padding: 0.65rem 0.9rem; outline: none; transition: border-color 0.15s;
}
.form-group input:focus, .form-group select:focus, .form-group textarea:focus { border-color: var(--color-accent); }
.form-group select option { background: var(--color-surface); }
.form-note { font-size: 0.75rem; color: var(--color-muted); margin-top: 1rem; }

/* Locations */
.location-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1rem; }
.location-link { display: block; padding: 1.25rem 1.5rem; border: 1px solid var(--color-border); border-radius: var(--radius); font-size: 0.9rem; color: var(--color-text); text-decoration: none; transition: border-color 0.15s; }
.location-link:hover { border-color: var(--color-accent); color: var(--color-white); text-decoration: none; }

/* Highlight box */
.highlight-box { background: var(--color-accent-dim); border-left: 3px solid var(--color-accent); padding: 1.25rem 1.5rem; border-radius: 0 var(--radius) var(--radius) 0; margin: 2rem 0; }
.highlight-box p { margin: 0; font-size: 0.95rem; }

/* Utils */
.text-muted { color: var(--color-muted); }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mb-2 { margin-bottom: 2rem; }

@media (max-width: 600px) {
  .hero { padding: 4rem 0 3rem; }
  .section, .section--alt { padding: 3rem 0; }
  .cta-banner { padding: 2rem 1.25rem; }
  .fit-block { padding: 1.5rem; }
  .footer-bottom { flex-direction: column; }
}

/* Founder / operator pain sections */
.founder-section { max-width: 680px; }
.founder-section p { font-size: 1.05rem; line-height: 1.75; margin-bottom: 1rem; }
.pain-list { list-style: none; padding: 0; margin: 1.25rem 0; }
.pain-list li { padding: 0.35rem 0; padding-left: 1.25rem; position: relative; color: var(--color-text); }
.pain-list li::before { content: "—"; position: absolute; left: 0; color: var(--color-accent); }
.trust-problem { border-top: 1px solid var(--color-border); padding-top: 2rem; margin-top: 2rem; }
.trust-problem h2 { font-size: 1.3rem; margin-bottom: 0.75rem; }