/* AS40271 / ip.sfmix.org — site styles
 * Built on SFMIX brand tokens. Single sheet, no preprocessor.
 */

:root {
  --c-primary:       #0b3640;
  --c-primary-light: #1a6070;
  --c-accent:        #e8913a;
  --c-hero-dark:     #071f26;
  --c-bg:            #ffffff;
  --c-bg-alt:        #f5f7fa;
  --c-text:          #222;
  --c-text-light:    #666;
  --c-border:        #dee2e6;

  --font-sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "Cascadia Code", Consolas, "Courier New", monospace;

  --container: 1100px;
  --container-pad: 1.5rem;
  --header-h: 64px;
}

*, *::before, *::after { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font-sans);
  color: var(--c-text);
  line-height: 1.6;
  background: var(--c-bg);
  -webkit-font-smoothing: antialiased;
}

a { color: var(--c-primary-light); text-decoration: none; transition: color 0.15s; }
a:hover { color: var(--c-accent); text-decoration: underline; }

code {
  font-family: var(--font-mono);
  font-size: 0.88em;
  background: rgba(11,54,64,0.06);
  color: var(--c-primary);
  padding: 0.12em 0.4em;
  border-radius: 3px;
}

pre {
  background: var(--c-primary);
  color: #d8e8ee;
  padding: 1.25rem;
  border-radius: 8px;
  overflow-x: auto;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  line-height: 1.65;
}
pre code { background: transparent; color: inherit; padding: 0; }

.container { max-width: var(--container); margin: 0 auto; padding: 0 var(--container-pad); }
.container--narrow { max-width: 820px; }

/* ---------- Header ---------- */
.site-header {
  background: var(--c-primary);
  position: sticky; top: 0; z-index: 50;
  box-shadow: 0 2px 8px rgba(0,0,0,0.15);
  height: var(--header-h);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: var(--header-h); }
.brand { display: flex; align-items: center; gap: 0.65rem; color: #fff; text-decoration: none; }
.brand:hover { color: #fff; text-decoration: none; }
.brand__logo { height: 32px; filter: drop-shadow(0 1px 4px rgba(0,0,0,0.3)); }
.brand__sep { width: 1px; height: 28px; background: rgba(255,255,255,0.25); }
.brand__asn { font-family: var(--font-mono); font-weight: 700; color: var(--c-accent); font-size: 0.85rem; }
.brand__host { font-family: var(--font-mono); font-size: 0.85rem; color: rgba(255,255,255,0.85); }

.site-nav ul { display: flex; list-style: none; padding: 0; margin: 0; }
.site-nav a {
  display: block; padding: 0 1rem; line-height: var(--header-h);
  color: rgba(255,255,255,0.85); font-size: 0.92rem;
  border-bottom: 2px solid transparent;
}
.site-nav a:hover { color: #fff; background: rgba(255,255,255,0.06); text-decoration: none; }
.site-nav a.is-active { color: #fff; background: rgba(255,255,255,0.10); border-bottom-color: var(--c-accent); }

/* ---------- Nav toggle (hamburger) ---------- */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}
.nav-toggle span {
  display: block; width: 22px; height: 2px;
  background: rgba(255,255,255,0.85); border-radius: 1px;
  transition: transform 0.2s;
}

/* ---------- Hero ---------- */
.hero {
  position: relative;
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-hero-dark) 100%);
  color: #fff;
  min-height: 80vh;
  display: flex; align-items: center;
  overflow: hidden;
}
.hero--photo {
  background: linear-gradient(135deg, rgba(7,31,38,0.75) 0%, rgba(11,54,64,0.55) 60%, rgba(7,31,38,0.85) 100%), url('/img/rack-3006.jpg') center top/cover no-repeat;
}
.hero__overlay {
  position: absolute; inset: 0;
  background-image: repeating-linear-gradient(0deg, rgba(255,255,255,0.012) 0 1px, transparent 1px 3px);
  pointer-events: none;
}
.hero__inner { position: relative; z-index: 2; padding: 4rem 1.5rem; }
.hero__eyebrow {
  display: inline-flex; align-items: center; gap: 0.6rem;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.15);
  padding: 0.4rem 0.85rem; border-radius: 999px;
  font-family: var(--font-mono); font-size: 0.8rem;
  color: rgba(255,255,255,0.9);
  margin-bottom: 1.5rem;
}
.hero__dot { width: 8px; height: 8px; border-radius: 50%; background: var(--c-accent); box-shadow: 0 0 12px var(--c-accent); }
.hero__title {
  font-size: clamp(2.4rem, 5.5vw, 4.5rem);
  font-weight: 300; line-height: 1.05; letter-spacing: -0.02em;
  margin: 0 0 1.25rem; text-shadow: 0 2px 24px rgba(0,0,0,0.4);
}
.hero__title-accent { color: var(--c-accent); font-weight: 600; }
.hero__lead { font-size: clamp(1.05rem, 1.6vw, 1.35rem); color: rgba(255,255,255,0.85); max-width: 720px; margin: 0 0 0.75rem; }
.hero__lead strong { color: #fff; }
.hero__tagline { font-size: 1rem; color: rgba(255,255,255,0.6); font-style: italic; margin: 0 0 2.5rem; }
.hero__cta { display: flex; gap: 0.85rem; flex-wrap: wrap; }
.hero__stats {
  margin-top: 3.5rem; max-width: 720px;
  display: grid; grid-template-columns: repeat(auto-fit, minmax(140px, 1fr)); gap: 0.5rem;
  border-top: 1px solid rgba(255,255,255,0.15); padding-top: 1.5rem;
}
.stat__v { display: block; font-family: var(--font-mono); font-size: 1.5rem; font-weight: 700; color: #fff; line-height: 1; }
.stat__l { display: block; font-size: 0.75rem; color: rgba(255,255,255,0.55); text-transform: uppercase; letter-spacing: 0.06em; margin-top: 0.35rem; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.4rem;
  padding: 0.95rem 1.6rem; border-radius: 6px;
  font-size: 0.95rem; font-weight: 600; cursor: pointer;
  font-family: inherit; border: none; text-decoration: none;
  transition: transform 0.15s, box-shadow 0.15s, background 0.15s;
}
.btn--primary { background: var(--c-accent); color: #fff; box-shadow: 0 4px 16px rgba(232,145,58,0.25); }
.btn--primary:hover { transform: translateY(-1px); box-shadow: 0 6px 20px rgba(232,145,58,0.4); color: #fff; text-decoration: none; }
.btn--ghost { background: transparent; color: rgba(255,255,255,0.95); border: 1px solid rgba(255,255,255,0.3); }
.btn--ghost:hover { background: rgba(255,255,255,0.08); color: #fff; text-decoration: none; }

/* ---------- Sections ---------- */
.section { padding: 4rem 0; }
.section--alt { background: var(--c-bg-alt); padding: 4rem 0; }
.section-head { margin-bottom: 2rem; }
.section-title { font-size: 1.8rem; font-weight: 600; color: var(--c-primary); margin: 0 0 0.5rem; line-height: 1.2; }
.kicker { font-family: var(--font-mono); font-size: 0.78rem; color: var(--c-accent); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.5rem; }
.lead { font-size: 1.1rem; color: var(--c-text-light); max-width: 720px; }

.two-col { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 2rem; align-items: start; }

.card-list { background: #fff; border: 1px solid var(--c-border); border-radius: 10px; padding: 1.5rem; display: flex; flex-direction: column; gap: 1rem; }
.card-list__item { display: flex; gap: 0.85rem; }
.card-list__bar { width: 4px; border-radius: 2px; background: var(--c-accent); flex-shrink: 0; }
.card-list__item strong { display: block; font-weight: 600; color: var(--c-primary); margin-bottom: 2px; }
.card-list__item span { display: block; font-size: 0.9rem; color: var(--c-text-light); line-height: 1.5; }

/* ---------- Sources grid ---------- */
.sources { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1.25rem; }
.source {
  background: #fff; border: 1px solid var(--c-border); border-top: 3px solid var(--c-accent);
  border-radius: 10px; padding: 1.5rem;
  display: flex; flex-direction: column; gap: 0.85rem;
  transition: box-shadow 0.2s, transform 0.2s;
  box-shadow: 0 1px 2px rgba(0,0,0,0.03);
}
.source:hover { box-shadow: 0 6px 18px rgba(0,0,0,0.08); transform: translateY(-2px); }
.source__head { display: flex; align-items: center; gap: 0.85rem; }
.source__logo {
  width: 48px; height: 48px; border-radius: 8px;
  background: #fafbfc; border: 1px solid var(--c-border);
  display: flex; align-items: center; justify-content: center;
  font-weight: 700; font-size: 1.4rem; color: var(--c-primary);
  flex-shrink: 0;
}
.source__logo--google   { color: #4285F4; }
.source__logo--apple    { color: #111; }
.source__logo--steam    { color: #1b2838; }
.source__logo--netskrt  { color: #FF6B35; }
.source__name { font-size: 1.05rem; font-weight: 600; color: var(--c-primary); line-height: 1.2; }
.source__asn  { font-family: var(--font-mono); font-size: 0.78rem; color: var(--c-text-light); margin-top: 2px; }
.source__note { font-size: 0.85rem; color: var(--c-text); line-height: 1.5; margin: 0; }
.source__meta { display: flex; flex-wrap: wrap; gap: 0.4rem; align-items: center; margin-top: auto; }
.pop {
  font-family: var(--font-mono); font-size: 0.72rem;
  color: var(--c-primary); background: rgba(11,54,64,0.07);
  padding: 0.2rem 0.5rem; border-radius: 3px;
  text-transform: uppercase; letter-spacing: 0.05em;
}
.source__tier { font-size: 0.72rem; color: var(--c-text-light); margin-left: auto; font-style: italic; }

/* ---------- CTA ---------- */
.cta {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-hero-dark) 100%);
  color: #fff; padding: 3.5rem 0;
  border-top: 4px solid var(--c-accent);
}
.cta__inner { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 1.5rem; }
.cta h2 { font-size: 1.7rem; font-weight: 600; margin: 0 0 0.4rem; color: #fff; }
.cta p { margin: 0; color: rgba(255,255,255,0.75); max-width: 560px; }

/* ---------- Page header (inner pages) ---------- */
.page-header {
  background: linear-gradient(135deg, var(--c-primary) 0%, var(--c-hero-dark) 100%);
  color: #fff; padding: 3.5rem 0 3rem;
  border-bottom: 4px solid var(--c-accent);
}
.page-header__kicker { font-family: var(--font-mono); font-size: 0.8rem; color: var(--c-accent); letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 0.5rem; }
.page-header h1 { font-size: clamp(1.8rem, 3.5vw, 2.6rem); font-weight: 600; margin: 0; letter-spacing: -0.01em; }

/* ---------- Content (markdown) ---------- */
.content { padding: 3rem 0 4rem; }
.content h2 {
  font-size: 1.5rem; font-weight: 600; color: var(--c-primary);
  margin: 2.5rem 0 1rem; padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--c-border);
  position: relative;
}
.content h2::after { content: ""; position: absolute; bottom: -2px; left: 0; width: 64px; height: 2px; background: var(--c-accent); }
.content h3 { font-size: 1.15rem; font-weight: 600; color: var(--c-primary); margin: 1.75rem 0 0.6rem; }
.content p { margin: 0 0 1rem; max-width: 760px; }
.content ul, .content ol { padding-left: 1.25rem; margin: 0 0 1rem; line-height: 1.7; max-width: 760px; }
.content li { margin-bottom: 0.25rem; }

.content table { width: 100%; border-collapse: collapse; margin: 1rem 0 1.5rem; font-size: 0.92rem; }
.content table th { background: #fafbfc; color: var(--c-text-light); font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.06em; font-weight: 600; padding: 0.55rem 0.85rem; text-align: left; border-bottom: 1px solid var(--c-border); }
.content table td { padding: 0.7rem 0.85rem; border-bottom: 1px solid var(--c-border); vertical-align: top; }
.content table td:first-child code { color: var(--c-primary); }

/* ---------- Callout ---------- */
.callout {
  background: #fff8e8;
  border: 1px solid #f0c97a;
  border-left: 4px solid var(--c-accent);
  border-radius: 8px;
  padding: 1.25rem 1.5rem;
  margin: 0 0 2.5rem;
}
.callout__title { font-weight: 700; color: #7a4a00; margin-bottom: 0.5rem; text-transform: uppercase; font-size: 0.78rem; letter-spacing: 0.08em; }
.callout__body p { color: #3a2a00; font-size: 0.95rem; line-height: 1.55; margin-bottom: 0.65rem; }
.callout__body p:last-child { margin-bottom: 0; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--c-primary); color: rgba(255,255,255,0.7);
  padding: 2.5rem 0 1.5rem; border-top: 4px solid var(--c-accent);
  margin-top: auto;
}
.site-footer__grid {
  display: grid; grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 2rem; margin-bottom: 2rem;
}
.site-footer h4 { color: #fff; font-size: 0.8rem; text-transform: uppercase; letter-spacing: 0.08em; margin: 0 0 0.85rem; font-weight: 600; }
.site-footer ul { list-style: none; padding: 0; margin: 0; display: flex; flex-direction: column; gap: 0.4rem; font-size: 0.9rem; }
.site-footer a { color: rgba(255,255,255,0.75); }
.site-footer a:hover { color: var(--c-accent); }
.brand--footer { gap: 0.6rem; margin-bottom: 0.85rem; color: #fff; font-weight: 600; }
.brand--footer .brand__logo { height: 28px; }
.site-footer p { font-size: 0.85rem; line-height: 1.5; margin: 0; }
.site-footer__legal {
  border-top: 1px solid rgba(255,255,255,0.1);
  padding-top: 1.25rem;
  display: flex; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem;
  font-size: 0.8rem;
}
.site-footer__legal a { color: var(--c-accent); font-weight: 600; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .nav-toggle { display: flex; }
  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: var(--c-primary);
    box-shadow: 0 4px 16px rgba(0,0,0,0.2);
  }
  .site-nav.open { display: block; }
  .site-nav ul { flex-direction: column; align-items: stretch; }
  .site-nav a { line-height: 3rem; padding: 0 1.5rem; border-bottom: none; }
  .brand__host { display: none; }

  .hero { min-height: 60vh; }
  .hero__title { font-size: clamp(1.8rem, 8vw, 2.8rem); }
  .hero__inner { padding: 2.5rem 1rem; }
  .hero__stats { grid-template-columns: repeat(3, 1fr); }

  .two-col { grid-template-columns: 1fr; }
  .section { padding: 2.5rem 0; }
  .section--alt { padding: 2.5rem 0; }
  .section-title { font-size: 1.4rem; }

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

  .cta__inner { flex-direction: column; text-align: center; }
  .cta h2 { font-size: 1.3rem; }

  .page-header { padding: 2.5rem 0 2rem; }
  .page-header h1 { font-size: clamp(1.4rem, 6vw, 2rem); }

  .content table { font-size: 0.8rem; }
  .content table th,
  .content table td { padding: 0.5rem 0.5rem; }

  .site-footer__grid { grid-template-columns: 1fr; gap: 1.5rem; }
  .site-footer__legal { flex-direction: column; text-align: center; }
}