/* ==========================================================================
   Ari Scharf — AI-Driven Marketing & Sales Consulting
   Static reconstruction · modern AI consultancy theme
   Palette: deep indigo / violet + electric cyan
   ========================================================================== */

/* ---------- Design tokens ---------- */
:root {
  /* Core dark base */
  --ink-900: #05030f;
  --ink-800: #0a0620;
  --ink-700: #120b30;
  --ink-600: #1a1140;

  /* Violet family */
  --violet-700: #4c1d95;
  --violet-600: #6d28d9;
  --violet-500: #8b5cf6;
  --violet-400: #a78bfa;
  --violet-300: #c4b5fd;

  /* Indigo accents */
  --indigo-600: #4f46e5;
  --indigo-500: #6366f1;
  --indigo-400: #818cf8;

  /* Electric accent */
  --cyan-400: #22d3ee;
  --cyan-300: #67e8f9;

  /* Text */
  --text-hi: #f5f3ff;
  --text-mid: #c9c3e8;
  --text-low: #9c95c4;

  /* Surfaces */
  --glass: rgba(139, 92, 246, 0.07);
  --glass-strong: rgba(139, 92, 246, 0.12);
  --line: rgba(167, 139, 250, 0.18);
  --line-soft: rgba(167, 139, 250, 0.10);

  /* Effects */
  --glow-cyan: 0 0 40px rgba(34, 211, 238, 0.28);
  --glow-violet: 0 20px 60px -20px rgba(139, 92, 246, 0.55);
  --radius: 16px;
  --radius-lg: 24px;
  --radius-sm: 10px;

  /* Type */
  --font-head: "Space Grotesk", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-body: "Inter", "Segoe UI", system-ui, -apple-system, sans-serif;
  --font-mono: ui-monospace, "SFMono-Regular", "Cascadia Code", Consolas, monospace;

  /* Layout */
  --wrap: 1180px;
  --wrap-narrow: 820px;
  --gutter: 24px;

  --header-h: 72px;
}

/* ---------- Reset ---------- */
*, *::before, *::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 16px);
}

body {
  margin: 0;
  background: var(--ink-900);
  color: var(--text-mid);
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.7;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { max-width: 100%; height: auto; display: block; }
a { color: var(--cyan-300); text-decoration: none; }
a:hover { color: var(--cyan-400); }

h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--text-hi);
  line-height: 1.15;
  margin: 0 0 0.6em;
  font-weight: 600;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
}

h1 { font-size: clamp(2rem, 5.2vw, 3.6rem); font-weight: 700; letter-spacing: -0.035em; }
h2 { font-size: clamp(1.6rem, 3.6vw, 2.5rem); }
h3 { font-size: clamp(1.2rem, 2.4vw, 1.6rem); }
h4 { font-size: 1.1rem; letter-spacing: -0.01em; }

p { margin: 0 0 1.1em; }
p:last-child { margin-bottom: 0; }

ul, ol { margin: 0 0 1.1em; padding-left: 1.25em; }
li { margin-bottom: 0.5em; }
li::marker { color: var(--violet-400); }

strong { color: var(--text-hi); font-weight: 600; }
hr { border: 0; border-top: 1px solid var(--line); margin: 2.5rem 0; }

::selection { background: var(--violet-600); color: #fff; }

:focus-visible {
  outline: 2px solid var(--cyan-400);
  outline-offset: 3px;
  border-radius: 4px;
}

/* ---------- Utilities ---------- */
.wrap { width: 100%; max-width: var(--wrap); margin-inline: auto; padding-inline: var(--gutter); }
.wrap-narrow { max-width: var(--wrap-narrow); }

.skip-link {
  position: absolute; top: -100px; left: 16px; z-index: 200;
  background: var(--violet-600); color: #fff;
  padding: 12px 20px; border-radius: 0 0 var(--radius-sm) var(--radius-sm);
  font-weight: 600; transition: top .2s;
}
.skip-link:focus { top: 0; color: #fff; }

.visually-hidden {
  position: absolute !important; width: 1px; height: 1px;
  margin: -1px; padding: 0; overflow: hidden;
  clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}

.eyebrow {
  display: inline-block;
  font-family: var(--font-head);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--cyan-400);
  margin-bottom: 0.9rem;
}
.eyebrow::before {
  content: "";
  display: inline-block;
  width: 26px; height: 2px;
  background: linear-gradient(90deg, var(--cyan-400), transparent);
  vertical-align: middle;
  margin-right: 10px;
}

.lede { font-size: 1.12rem; color: var(--text-mid); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 13px 26px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .18s ease, box-shadow .18s ease, background .18s ease, border-color .18s ease;
  text-align: center;
  line-height: 1.3;
}
.btn-primary {
  background: linear-gradient(120deg, var(--violet-600), var(--indigo-500) 55%, var(--cyan-400) 140%);
  color: #fff;
  box-shadow: 0 10px 34px -12px rgba(139, 92, 246, 0.9);
}
.btn-primary:hover {
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 16px 44px -12px rgba(34, 211, 238, 0.65);
}
.btn-ghost {
  background: rgba(255, 255, 255, 0.03);
  border-color: var(--line);
  color: var(--text-hi);
  backdrop-filter: blur(8px);
}
.btn-ghost:hover {
  color: #fff;
  border-color: var(--violet-400);
  background: var(--glass-strong);
  transform: translateY(-2px);
}

/* ---------- Header / nav ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  height: var(--header-h);
  display: flex;
  align-items: center;
  background: rgba(5, 3, 15, 0.72);
  backdrop-filter: blur(18px) saturate(160%);
  -webkit-backdrop-filter: blur(18px) saturate(160%);
  border-bottom: 1px solid var(--line-soft);
}
.site-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand { display: flex; align-items: center; gap: 12px; flex-shrink: 0; }
.brand img { width: 40px; height: auto; border-radius: 9px; }
.brand-text { display: flex; flex-direction: column; line-height: 1.15; }
.brand-name {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.02rem;
  color: var(--text-hi);
  letter-spacing: -0.01em;
}
.brand-sub { font-size: 0.68rem; letter-spacing: 0.1em; text-transform: uppercase; color: var(--violet-300); }

.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 10px;
  width: 44px; height: 40px;
  cursor: pointer;
  padding: 0;
  align-items: center;
  justify-content: center;
}
.nav-toggle span {
  display: block;
  position: relative;
  width: 20px; height: 2px;
  background: var(--text-hi);
  border-radius: 2px;
  transition: background .15s;
}
.nav-toggle span::before,
.nav-toggle span::after {
  content: ""; position: absolute; left: 0;
  width: 20px; height: 2px; background: var(--text-hi); border-radius: 2px;
  transition: transform .2s ease, top .2s ease;
}
.nav-toggle span::before { top: -6px; }
.nav-toggle span::after  { top: 6px; }
.nav-toggle[aria-expanded="true"] span { background: transparent; }
.nav-toggle[aria-expanded="true"] span::before { top: 0; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span::after  { top: 0; transform: rotate(-45deg); }

.nav-list {
  display: flex;
  align-items: center;
  gap: 4px;
  list-style: none;
  margin: 0; padding: 0;
}
.nav-list a {
  display: block;
  font-family: var(--font-head);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-mid);
  padding: 9px 14px;
  border-radius: 9px;
  transition: color .15s, background .15s;
}
.nav-list a:hover { color: var(--text-hi); background: var(--glass); }
.nav-cta {
  margin-left: 8px;
  padding: 10px 20px !important;
  background: linear-gradient(120deg, var(--violet-600), var(--indigo-500));
  color: #fff !important;
  border-radius: 999px !important;
  box-shadow: 0 8px 26px -12px rgba(139, 92, 246, 0.95);
}
.nav-cta:hover { filter: brightness(1.12); }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  overflow: hidden;
  padding: clamp(72px, 11vw, 132px) 0 clamp(60px, 9vw, 108px);
  background:
    radial-gradient(1100px 620px at 78% -8%, rgba(109, 40, 217, 0.55), transparent 62%),
    radial-gradient(760px 520px at 8% 12%, rgba(79, 70, 229, 0.42), transparent 60%),
    linear-gradient(180deg, var(--ink-900) 0%, var(--ink-800) 60%, var(--ink-900) 100%);
}
.hero::before {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(167, 139, 250, 0.055) 1px, transparent 1px),
    linear-gradient(90deg, rgba(167, 139, 250, 0.055) 1px, transparent 1px);
  background-size: 62px 62px;
  mask-image: radial-gradient(760px 520px at 60% 30%, #000 20%, transparent 78%);
  -webkit-mask-image: radial-gradient(760px 520px at 60% 30%, #000 20%, transparent 78%);
  pointer-events: none;
}
.hero > .wrap { position: relative; z-index: 2; }

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.08fr) minmax(0, 0.92fr);
  gap: clamp(36px, 5vw, 72px);
  align-items: center;
}
.hero h1 { margin-bottom: 0.45em; }
.hero h1 .accent {
  background: linear-gradient(100deg, var(--violet-400), var(--indigo-400) 45%, var(--cyan-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .lede { font-size: clamp(1.02rem, 1.4vw, 1.18rem); max-width: 60ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.hero-contact {
  display: flex; flex-wrap: wrap; gap: 10px 26px;
  margin-top: 26px; padding-top: 24px;
  border-top: 1px solid var(--line-soft);
  font-size: 0.95rem;
}
.hero-contact a { color: var(--text-mid); display: inline-flex; align-items: center; gap: 8px; }
.hero-contact a:hover { color: var(--cyan-300); }
.hero-contact .ico { color: var(--cyan-400); flex-shrink: 0; }

/* Hero graphic */
.hero-art { position: relative; }
.hero-art img {
  border-radius: var(--radius-lg);
  border: 1px solid var(--line);
  box-shadow: var(--glow-violet);
  width: 100%;
}
.hero-art::after {
  content: "";
  position: absolute; inset: -26px -18px;
  background: radial-gradient(closest-side, rgba(34, 211, 238, 0.30), transparent 72%);
  filter: blur(38px);
  z-index: -1;
}
.hero-art figcaption {
  margin-top: 14px;
  font-size: 0.82rem;
  color: var(--text-low);
  text-align: center;
  letter-spacing: 0.02em;
}

/* ---------- Intro strip (logo band) ---------- */
.logo-band { border-block: 1px solid var(--line-soft); background: var(--ink-800); padding: 34px 0; }
.logo-band p {
  text-align: center;
  font-family: var(--font-head);
  font-size: 0.74rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--text-low);
  margin-bottom: 22px;
}
.logo-row {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: clamp(20px, 4vw, 52px);
  list-style: none; margin: 0; padding: 0;
}
.logo-row li { margin: 0; }
.logo-row img {
  height: clamp(26px, 3vw, 34px);
  width: auto;
  opacity: 0.52;
  filter: grayscale(1) brightness(1.55);
  transition: opacity .22s ease, filter .22s ease, transform .22s ease;
}
.logo-row img:hover { opacity: 1; filter: grayscale(0) brightness(1); transform: translateY(-2px); }

/* ---------- Sections ---------- */
.section { padding: clamp(64px, 9vw, 116px) 0; position: relative; }
.section-alt {
  background:
    radial-gradient(900px 460px at 88% 0%, rgba(79, 70, 229, 0.20), transparent 65%),
    var(--ink-800);
  border-block: 1px solid var(--line-soft);
}
.section-head { max-width: 720px; margin-bottom: clamp(38px, 5vw, 62px); }
.section-head.center { margin-inline: auto; text-align: center; }
.section-head.center .eyebrow::before { display: none; }

/* About */
.about-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.88fr);
  gap: clamp(36px, 6vw, 76px);
  align-items: start;
}
.about-body p { font-size: 1.06rem; }

.stat-list { display: grid; gap: 22px; }
.stat-card {
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 22px 24px;
  backdrop-filter: blur(10px);
}
.stat-card .stat-top {
  display: flex; align-items: baseline; justify-content: space-between; gap: 12px;
  margin-bottom: 14px;
}
.stat-card .stat-label {
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--text-hi);
  font-size: 1rem;
}
.stat-card .stat-value {
  font-family: var(--font-head);
  font-weight: 700;
  font-size: 1.05rem;
  color: var(--cyan-400);
}
.meter {
  height: 7px;
  border-radius: 999px;
  background: rgba(167, 139, 250, 0.16);
  overflow: hidden;
}
.meter > span {
  display: block;
  height: 100%;
  width: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--violet-500), var(--indigo-500) 55%, var(--cyan-400));
}

/* Possibilities / expertise */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(270px, 1fr));
  gap: 22px;
}
.card {
  position: relative;
  background: linear-gradient(160deg, var(--glass-strong), rgba(10, 6, 32, 0.6));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px;
  backdrop-filter: blur(10px);
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
  overflow: hidden;
}
.card::before {
  content: "";
  position: absolute; top: 0; left: 22px; right: 22px; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(34, 211, 238, 0.65), transparent);
  opacity: 0; transition: opacity .22s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(167, 139, 250, 0.42);
  box-shadow: 0 22px 54px -24px rgba(109, 40, 217, 0.85);
}
.card:hover::before { opacity: 1; }
.card h3 { font-size: 1.14rem; margin-bottom: 0.5em; }
.card p { font-size: 0.96rem; color: var(--text-mid); margin: 0; }

.pillars {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(230px, 1fr));
  gap: 18px;
  list-style: none;
  margin: 0; padding: 0;
}
.pillar {
  background: var(--glass);
  border: 1px solid var(--line-soft);
  border-left: 3px solid var(--cyan-400);
  border-radius: var(--radius-sm);
  padding: 18px 20px;
  font-size: 0.95rem;
  margin: 0;
}
.pillar strong { display: block; font-family: var(--font-head); margin-bottom: 4px; }

/* Expertise block */
.expertise {
  margin-top: clamp(38px, 5vw, 58px);
  background:
    radial-gradient(700px 340px at 100% 0%, rgba(34, 211, 238, 0.14), transparent 62%),
    var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: clamp(26px, 4vw, 42px);
}
.expertise h3 { display: flex; align-items: center; gap: 12px; margin-bottom: 0.5em; }
.expertise h3 .dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: var(--cyan-400);
  box-shadow: 0 0 0 5px rgba(34, 211, 238, 0.16);
  flex-shrink: 0;
}
.expertise p { margin: 0; color: var(--text-mid); }

/* ---------- Blog ---------- */
.post-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}
.post-card {
  display: flex; flex-direction: column;
  background: linear-gradient(165deg, rgba(139, 92, 246, 0.10), rgba(10, 6, 32, 0.72));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 28px 26px 24px;
  transition: transform .22s ease, border-color .22s ease, box-shadow .22s ease;
}
.post-card:hover {
  transform: translateY(-4px);
  border-color: rgba(34, 211, 238, 0.42);
  box-shadow: 0 22px 56px -26px rgba(34, 211, 238, 0.6);
}
.post-card .post-date {
  font-family: var(--font-head);
  font-size: 0.74rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--cyan-400);
  margin-bottom: 12px;
}
.post-card h3 { font-size: 1.18rem; margin-bottom: 0.5em; }
.post-card h3 a { color: var(--text-hi); }
.post-card h3 a:hover { color: var(--cyan-300); }
.post-card p { font-size: 0.95rem; flex-grow: 1; }
.post-card .post-author {
  font-size: 0.82rem;
  color: var(--text-low);
  margin: 16px 0 0;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  display: flex; justify-content: space-between; gap: 10px; flex-wrap: wrap;
}
.post-card .read-more {
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--violet-300);
  margin-top: 16px;
  display: inline-flex; align-items: center; gap: 7px;
}
.post-card:hover .read-more { color: var(--cyan-300); }
.post-card .read-more::after { content: "→"; transition: transform .2s; }
.post-card:hover .read-more::after { transform: translateX(4px); }

.posts-cta { margin-top: 40px; text-align: center; }

/* ---------- Contact ---------- */
.contact {
  position: relative;
  background:
    linear-gradient(rgba(5, 3, 15, 0.90), rgba(10, 6, 32, 0.95)),
    url("../img/contact-bg.jpg") center/cover no-repeat;
  border-top: 1px solid var(--line-soft);
}
.contact-grid {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.85fr);
  gap: clamp(34px, 5vw, 68px);
  align-items: center;
}
.contact-list { list-style: none; margin: 28px 0 0; padding: 0; display: grid; gap: 14px; }
.contact-list li { margin: 0; }
.contact-list a, .contact-list span {
  display: flex; align-items: center; gap: 14px;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  padding: 15px 18px;
  color: var(--text-mid);
  transition: border-color .18s, background .18s, transform .18s;
}
.contact-list a:hover {
  color: var(--text-hi);
  border-color: var(--violet-400);
  background: var(--glass-strong);
  transform: translateX(3px);
}
.contact-list .ico { color: var(--cyan-400); flex-shrink: 0; }
.contact-note {
  margin-top: 26px;
  font-size: 0.88rem;
  color: var(--text-low);
  border-left: 2px solid var(--line);
  padding-left: 16px;
}

/* ---------- Post / article pages ---------- */
.page-hero {
  position: relative;
  padding: clamp(56px, 8vw, 96px) 0 clamp(36px, 5vw, 56px);
  background:
    radial-gradient(900px 480px at 82% -10%, rgba(109, 40, 217, 0.48), transparent 62%),
    radial-gradient(620px 400px at 6% 8%, rgba(79, 70, 229, 0.34), transparent 60%),
    var(--ink-900);
  border-bottom: 1px solid var(--line-soft);
}
.page-hero h1 { font-size: clamp(1.75rem, 4.2vw, 3rem); margin-bottom: 0.5em; }
.page-meta {
  display: flex; flex-wrap: wrap; align-items: center; gap: 10px 20px;
  font-size: 0.88rem; color: var(--text-low);
  margin-top: 22px;
}
.page-meta .chip {
  display: inline-flex; align-items: center;
  background: var(--glass);
  border: 1px solid var(--line);
  border-radius: 999px;
  padding: 5px 14px;
  font-family: var(--font-head);
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  color: var(--violet-300);
}

.article {
  padding: clamp(48px, 7vw, 84px) 0 clamp(56px, 8vw, 96px);
}
.article-body { max-width: 760px; margin-inline: auto; }
.article-body h2 {
  font-size: clamp(1.35rem, 2.8vw, 1.95rem);
  margin-top: 2.2em;
  padding-top: 0.2em;
}
.article-body h2:first-child { margin-top: 0; }
.article-body h3 { margin-top: 1.8em; font-size: clamp(1.1rem, 2.1vw, 1.4rem); }
.article-body h4 { margin-top: 1.6em; color: var(--violet-300); }
.article-body p { font-size: 1.06rem; }
.article-body > .callout,
.article-body > .grid-table { margin-block: 1.8em; }

.callout {
  background: linear-gradient(150deg, rgba(34, 211, 238, 0.10), rgba(139, 92, 246, 0.08));
  border: 1px solid rgba(34, 211, 238, 0.28);
  border-radius: var(--radius);
  padding: 22px 26px;
  margin-block: 1.8em;
}
.callout p:last-child { margin-bottom: 0; }
.callout strong { color: var(--cyan-300); }
.callout-warn {
  background: linear-gradient(150deg, rgba(139, 92, 246, 0.14), rgba(10, 6, 32, 0.5));
  border-color: rgba(167, 139, 250, 0.34);
}

/* Tables */
.table-scroll {
  overflow-x: auto;
  margin-block: 1.8em;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: rgba(10, 6, 32, 0.5);
  -webkit-overflow-scrolling: touch;
}
table {
  width: 100%;
  border-collapse: collapse;
  min-width: 520px;
  font-size: 0.94rem;
}
caption {
  caption-side: top;
  text-align: left;
  padding: 14px 18px 8px;
  font-family: var(--font-head);
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-low);
}
th, td {
  padding: 12px 18px;
  text-align: left;
  border-bottom: 1px solid var(--line-soft);
  vertical-align: top;
}
thead th {
  font-family: var(--font-head);
  font-weight: 600;
  color: var(--text-hi);
  background: var(--glass);
  font-size: 0.88rem;
  letter-spacing: 0.03em;
}
tbody tr:last-child td { border-bottom: 0; }
tbody tr:hover { background: rgba(139, 92, 246, 0.06); }
td strong { color: var(--text-hi); }

/* Post nav */
.post-nav {
  display: flex; justify-content: space-between; gap: 18px; flex-wrap: wrap;
  margin-top: 56px; padding-top: 34px;
  border-top: 1px solid var(--line);
}
.post-nav a {
  display: flex; flex-direction: column; gap: 5px;
  max-width: 320px;
  font-family: var(--font-head);
  color: var(--text-hi);
  font-size: 0.98rem;
  line-height: 1.35;
}
.post-nav a:hover { color: var(--cyan-300); }
.post-nav .dir {
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-low);
}
.post-nav .next { text-align: right; margin-left: auto; }

.back-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: var(--font-head);
  font-size: 0.88rem;
  color: var(--violet-300);
  margin-bottom: 26px;
}
.back-link:hover { color: var(--cyan-300); }

/* Related */
.related { border-top: 1px solid var(--line-soft); background: var(--ink-800); padding: clamp(52px, 7vw, 82px) 0; }

/* ---------- 404 ---------- */
.error-page {
  min-height: calc(100vh - var(--header-h));
  display: flex; align-items: center; justify-content: center;
  text-align: center;
  padding: clamp(60px, 10vw, 120px) 0;
  background:
    radial-gradient(800px 500px at 50% 0%, rgba(109, 40, 217, 0.42), transparent 65%),
    var(--ink-900);
}
.error-code {
  font-family: var(--font-head);
  font-size: clamp(5rem, 20vw, 11rem);
  font-weight: 700;
  line-height: 0.9;
  margin: 0 0 0.1em;
  background: linear-gradient(120deg, var(--violet-400), var(--indigo-400) 50%, var(--cyan-400));
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  letter-spacing: -0.05em;
}
.error-page .lede { max-width: 52ch; margin-inline: auto; }

/* ---------- Footer ---------- */
.site-footer {
  background: var(--ink-900);
  border-top: 1px solid var(--line-soft);
  padding: clamp(48px, 6vw, 72px) 0 30px;
  font-size: 0.92rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) repeat(2, minmax(0, 0.8fr));
  gap: clamp(30px, 5vw, 60px);
  margin-bottom: 40px;
}
.footer-brand { display: flex; align-items: center; gap: 12px; margin-bottom: 16px; }
.footer-brand img { width: 38px; height: auto; border-radius: 8px; }
.footer-brand span { font-family: var(--font-head); font-weight: 700; color: var(--text-hi); font-size: 1rem; }
.site-footer p { color: var(--text-low); max-width: 42ch; margin: 0; }
.site-footer h2 {
  font-size: 0.78rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-hi);
  margin-bottom: 16px;
}
.footer-links { list-style: none; margin: 0; padding: 0; display: grid; gap: 10px; }
.footer-links li { margin: 0; }
.footer-links a { color: var(--text-low); }
.footer-links a:hover { color: var(--cyan-300); }
.footer-bottom {
  border-top: 1px solid var(--line-soft);
  padding-top: 24px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
  font-size: 0.84rem;
  color: var(--text-low);
}

/* ---------- Reveal on scroll (progressive) ---------- */
.reveal { opacity: 0; transform: translateY(18px); }
.reveal.is-visible { opacity: 1; transform: none; transition: opacity .6s ease, transform .6s ease; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal, .reveal.is-visible { opacity: 1; transform: none; transition: none; }
  .btn, .card, .post-card, .logo-row img { transition: none; }
}

/* ==========================================================================
   Responsive
   ========================================================================== */

/* Tablet */
@media (max-width: 1000px) {
  .hero-grid,
  .about-grid,
  .contact-grid { grid-template-columns: minmax(0, 1fr); }
  .hero-art { max-width: 620px; margin-inline: auto; order: -1; }
  .footer-grid { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); }
  .footer-grid > :first-child { grid-column: 1 / -1; }
}

/* Mobile nav */
@media (max-width: 860px) {
  :root { --gutter: 20px; }

  .nav-toggle { display: inline-flex; }

  .site-nav {
    position: absolute;
    top: var(--header-h);
    left: 0; right: 0;
    background: rgba(8, 5, 22, 0.97);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--line);
    padding: 14px var(--gutter) 24px;
    display: none;
    box-shadow: 0 24px 50px -22px rgba(0, 0, 0, 0.9);
  }
  .site-nav.is-open { display: block; }

  .nav-list { flex-direction: column; align-items: stretch; gap: 4px; }
  .nav-list a { padding: 13px 14px; font-size: 1rem; }
  .nav-cta { margin: 10px 0 0; text-align: center; justify-content: center; }
}

@media (max-width: 620px) {
  body { font-size: 16px; }
  :root { --gutter: 18px; }

  .hero { padding-top: 52px; }
  .hero-actions { gap: 10px; }
  .hero-actions .btn { width: 100%; justify-content: center; }
  .hero-contact { gap: 10px; }

  .stat-card { padding: 18px 20px; }
  .card, .post-card { padding: 22px 20px; }

  .footer-grid { grid-template-columns: minmax(0, 1fr); }
  .footer-bottom { flex-direction: column; gap: 10px; }

  table { min-width: 460px; }
  th, td { padding: 10px 14px; }
}