/* =========================================================
   ETL Consulting — style.css
   Editorial, restrained, one accent (oxblood) on warm paper
   ========================================================= */

/* ---------- Tokens ---------- */
:root {
  --paper: #F2EEE6;
  --paper-deep: #E8E2D6;
  --ink: #1C1A19;
  --ink-soft: #5E5A55;
  --accent: #7B2D3A;
  --accent-dark: #5F202B;
  --line: rgba(28, 26, 25, 0.18);
  --line-light: rgba(242, 238, 230, 0.22);

  --font-display: "Newsreader", Georgia, "Times New Roman", serif;
  --font-body: "Hanken Grotesk", -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, Menlo, Consolas, monospace;

  --container: 1240px;
  --gutter: clamp(20px, 4vw, 48px);
  --space-section: clamp(80px, 11vw, 150px);
  --header-h: 76px;
  --header-h-compact: 60px;

  --ease: cubic-bezier(0.2, 0.7, 0.2, 1);
}

/* ---------- Reset / base ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  -webkit-font-smoothing: antialiased;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
h1, h2, h3, h4, p, dl, dd, blockquote, address { margin: 0; }
address { font-style: normal; }
button, input, textarea { font: inherit; color: inherit; }
section[id] { scroll-margin-top: calc(var(--header-h-compact) + 12px); }

:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 var(--gutter); }
.section { padding: var(--space-section) 0; }

.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 200;
  background: var(--ink); color: var(--paper); padding: 10px 16px; font-size: 14px;
}
.skip-link:focus { top: 12px; }

/* ---------- Shared type ---------- */
h1, h2, h3 { font-family: var(--font-display); font-weight: 400; letter-spacing: -0.015em; }
h2 { font-size: clamp(2rem, 4.4vw, 3.5rem); line-height: 1.08; }
h3 { font-size: clamp(1.35rem, 2vw, 1.7rem); line-height: 1.2; }

.label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--ink-soft);
}
.label-light { color: rgba(242, 238, 230, 0.7); }

/* ---------- Buttons & links ---------- */
.btn {
  display: inline-block;
  padding: 15px 28px;
  font-size: 15px;
  font-weight: 600;
  letter-spacing: 0.01em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.btn-primary { background: var(--accent); color: var(--paper); }
.btn-primary:hover { background: var(--ink); }

.text-link {
  display: inline-flex; align-items: center; gap: 8px;
  font-weight: 600; font-size: 15px;
  border-bottom: 1px solid var(--line);
  padding-bottom: 3px;
  transition: border-color 0.25s var(--ease), color 0.25s var(--ease), gap 0.25s var(--ease);
}
.text-link:hover { color: var(--accent); border-color: var(--accent); gap: 12px; }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  height: var(--header-h);
  background: var(--paper);
  border-bottom: 1px solid transparent;
  transition: height 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
}
.site-header.is-compact {
  height: var(--header-h-compact);
  background: rgba(242, 238, 230, 0.96);
  border-bottom-color: var(--line);
}
.header-inner { height: 100%; display: flex; align-items: center; justify-content: space-between; gap: 24px; }

.logo { display: inline-flex; align-items: baseline; gap: 10px; }
.logo-mark {
  font-family: var(--font-display);
  font-size: 1.6rem; font-weight: 500; letter-spacing: 0.02em;
  color: var(--accent);
  line-height: 1;
}
.logo-word {
  font-family: var(--font-mono);
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: var(--ink);
}

.main-nav { display: flex; align-items: center; gap: 36px; }
.main-nav ul { display: flex; gap: 30px; }
.main-nav ul a {
  font-size: 14.5px; font-weight: 500; color: var(--ink-soft);
  position: relative; padding: 4px 0;
  transition: color 0.2s var(--ease);
}
.main-nav ul a::after {
  content: ""; position: absolute; left: 0; bottom: 0; width: 100%; height: 1px;
  background: var(--accent); transform: scaleX(0); transform-origin: left;
  transition: transform 0.3s var(--ease);
}
.main-nav ul a:hover { color: var(--ink); }
.main-nav ul a:hover::after { transform: scaleX(1); }

.nav-cta {
  font-size: 13.5px; font-weight: 600;
  padding: 9px 16px;
  border: 1px solid var(--ink);
  transition: background 0.25s var(--ease), color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.nav-cta:hover { background: var(--ink); color: var(--paper); }

.menu-toggle {
  display: none;
  width: 44px; height: 44px; padding: 0;
  background: none; border: 0; cursor: pointer;
  position: relative;
}
.menu-toggle span {
  position: absolute; left: 10px; right: 10px; height: 1.5px; background: var(--ink);
  transition: transform 0.3s var(--ease), top 0.3s var(--ease);
}
.menu-toggle span:first-child { top: 18px; }
.menu-toggle span:last-child { top: 25px; }
.menu-toggle[aria-expanded="true"] span:first-child { top: 21.5px; transform: rotate(45deg); }
.menu-toggle[aria-expanded="true"] span:last-child { top: 21.5px; transform: rotate(-45deg); }

/* ---------- Hero ---------- */
.hero { padding: clamp(40px, 7vw, 96px) 0 var(--space-section); }
.hero-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 24px;
  align-items: center;
}
.hero-copy { grid-column: 1 / 8; }
.hero h1 {
  font-size: clamp(2.8rem, 6.6vw, 5.9rem);
  line-height: 1;
  letter-spacing: -0.025em;
  margin: 22px 0 28px;
}
.hero h1 em { font-style: italic; color: var(--accent); }
.hero-lead { max-width: 520px; font-size: 1.1rem; color: var(--ink-soft); }
.hero-actions { display: flex; align-items: center; flex-wrap: wrap; gap: 14px 32px; margin-top: 36px; }

.hero-visual {
  grid-column: 9 / 13;
  position: relative;
  aspect-ratio: 4 / 5.2;
  margin-top: 24px;
}
.hv-block { position: absolute; overflow: hidden; }
.hv-block svg { width: 100%; height: 100%; }
.hv-main { top: 0; right: 0; width: 82%; height: 82%; }
.hv-archive { bottom: 0; left: 0; width: 54%; aspect-ratio: 200 / 180; border: 1px solid var(--ink); }
.hv-tag {
  position: absolute; right: 0; bottom: 6%;
  width: 52%;
  background: var(--ink); color: var(--paper);
  padding: 14px 16px;
  display: flex; flex-direction: column; gap: 4px;
}
.tag-k { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.12em; text-transform: uppercase; color: #D9A9B1; }
.tag-v { font-size: 13.5px; line-height: 1.4; }

/* ---------- About ---------- */
.about { border-top: 1px solid var(--line); }
.about-head { max-width: 900px; }
.about-head h2 { margin-top: 20px; }

.about-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 24px;
  margin-top: clamp(48px, 7vw, 88px);
  align-items: start;
}
.about-media { grid-column: 1 / 6; position: relative; }
.about-media svg { width: 100%; aspect-ratio: 4 / 5; }
.media-note {
  display: block; margin-top: 10px;
  font-family: var(--font-mono); font-size: 11px; color: var(--ink-soft);
}
.media-note-light { color: var(--ink-soft); }

.about-text { grid-column: 7 / 13; padding-top: 24px; }
.about-cols { column-count: 2; column-gap: 32px; color: var(--ink-soft); }
.about-cols p { break-inside: avoid; margin-bottom: 1em; }

.statement {
  margin: 40px 0 0 -40px;
  padding: 28px 0 28px 40px;
  border-left: 3px solid var(--accent);
  background: var(--paper-deep);
  font-family: var(--font-display);
  font-size: clamp(1.4rem, 2.4vw, 2rem);
  line-height: 1.25;
  padding-right: 28px;
}

.facts { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 40px; border-top: 1px solid var(--line); padding-top: 24px; }
.facts dt { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); }
.facts dd { margin-top: 6px; font-weight: 600; font-size: 15px; line-height: 1.4; }

/* ---------- Services ---------- */
.services { background: var(--paper); border-top: 1px solid var(--line); }
.services-head { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; margin-bottom: clamp(48px, 6vw, 80px); }
.services-head .label { grid-column: 1 / 13; margin-bottom: 20px; }
.services-head h2 { grid-column: 1 / 8; }
.services-head p:last-child { grid-column: 9 / 13; color: var(--ink-soft); align-self: end; }

.service-feature {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  border: 1px solid var(--ink);
}
.sf-main { padding: clamp(28px, 4vw, 56px); display: flex; flex-direction: column; align-items: flex-start; gap: 20px; }
.sf-index { font-family: var(--font-mono); font-size: 12px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--accent); }
.sf-main h3 { font-size: clamp(1.8rem, 3.2vw, 2.7rem); line-height: 1.1; }
.sf-main p { color: var(--ink-soft); max-width: 520px; }
.sf-list { border-left: 1px solid var(--ink); background: var(--paper-deep); }
.sf-list li { padding: 22px 28px; border-bottom: 1px solid var(--line); display: grid; gap: 4px; }
.sf-list li:last-child { border-bottom: 0; }
.sf-list strong { font-size: 15px; }
.sf-list span { font-size: 14.5px; color: var(--ink-soft); }

.service-rows { margin-top: 0; border-top: 1px solid var(--ink); }
.service-feature + .service-rows { margin-top: 40px; }
.service-row {
  display: grid;
  grid-template-columns: 56px 48px minmax(0, 1.1fr) minmax(0, 1.2fr);
  column-gap: 28px;
  align-items: start;
  padding: 32px 12px;
  border-bottom: 1px solid var(--line);
  transition: background 0.3s var(--ease), padding-left 0.3s var(--ease);
}
.service-row:hover { background: var(--paper-deep); padding-left: 24px; }
.sr-num { font-family: var(--font-mono); font-size: 13px; color: var(--accent); padding-top: 6px; }
.sr-icon { width: 36px; height: 36px; color: var(--ink); margin-top: 2px; }
.service-row:hover .sr-icon { color: var(--accent); }
.service-row h3 { font-size: clamp(1.25rem, 1.8vw, 1.55rem); }
.service-row p { color: var(--ink-soft); font-size: 15.5px; }

.events-band {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: 24px;
  margin: clamp(64px, 8vw, 110px) 0 36px;
  align-items: end;
}
.events-media { grid-column: 1 / 8; }
.events-media svg { width: 100%; aspect-ratio: 16 / 7.5; }
.events-intro { grid-column: 8 / 13; padding-bottom: 28px; display: flex; flex-direction: column; gap: 16px; }
.events-intro h3 { font-size: clamp(1.5rem, 2.6vw, 2.1rem); }

/* ---------- Approach (contrast section) ---------- */
.approach { background: var(--ink); color: var(--paper); }
.approach-head h2 { margin-top: 20px; max-width: 640px; }
.approach-list { margin-top: clamp(40px, 6vw, 72px); display: grid; grid-template-columns: 1fr 1fr; column-gap: clamp(32px, 6vw, 96px); }
.ap-item {
  display: grid; grid-template-columns: auto 1fr; gap: 24px;
  padding: 36px 0;
  border-top: 1px solid var(--line-light);
}
.ap-num {
  font-family: var(--font-display);
  font-size: clamp(4rem, 8vw, 7rem);
  line-height: 0.85;
  color: #C9707E;
  font-weight: 400;
  min-width: 0.7em;
}
.ap-item h3 { font-size: 1.5rem; margin-bottom: 10px; }
.ap-item p { color: rgba(242, 238, 230, 0.72); font-size: 15.5px; }

/* ---------- Contact ---------- */
.contact-grid { display: grid; grid-template-columns: repeat(12, 1fr); column-gap: 24px; align-items: start; }
.contact-info { grid-column: 1 / 6; }
.contact-info h2 { margin: 20px 0 24px; }
.contact-lead { color: var(--ink-soft); max-width: 440px; }
.contact-details { margin-top: 40px; border-top: 1px solid var(--ink); }
.contact-details > div { display: grid; grid-template-columns: 100px 1fr; gap: 16px; padding: 18px 0; border-bottom: 1px solid var(--line); }
.cd-k { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--ink-soft); padding-top: 4px; }
.cd-v { font-size: 1.05rem; font-weight: 500; }
.cd-v a { border-bottom: 1px solid var(--accent); transition: color 0.2s var(--ease); }
.cd-v a:hover { color: var(--accent); }

.contact-form { grid-column: 7 / 13; border: 1px solid var(--ink); padding: clamp(24px, 4vw, 48px); background: var(--paper-deep); }
.field { margin-bottom: 22px; }
.field label { display: block; font-size: 13.5px; font-weight: 600; margin-bottom: 8px; }
.field label small { font-weight: 400; color: var(--ink-soft); }
.field input, .field textarea {
  width: 100%; padding: 13px 14px;
  border: 1px solid rgba(28, 26, 25, 0.35);
  border-radius: 0;
  background: var(--paper);
  transition: border-color 0.2s var(--ease), background 0.2s var(--ease);
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus { outline: none; border-color: var(--accent); background: #fff; }
.field .error { display: none; margin-top: 6px; font-size: 13px; color: #A12A2A; }
.field.has-error input, .field.has-error textarea { border-color: #A12A2A; }
.field.has-error .error { display: block; }

.contact-form .btn { width: 100%; }
.form-status { margin-top: 18px; font-size: 14.5px; min-height: 1.4em; }
.form-status.is-success { color: #2D5A3D; padding: 12px 14px; border: 1px solid #2D5A3D; background: #E5EEE6; }
.form-status.is-error { color: #A12A2A; padding: 12px 14px; border: 1px solid #A12A2A; background: #F3E3E1; }

/* ---------- Footer ---------- */
.site-footer { background: var(--ink); color: rgba(242, 238, 230, 0.78); padding: 72px 0 28px; }
.footer-grid { display: grid; grid-template-columns: 1.5fr 0.8fr 1.2fr 1fr; gap: 40px; padding-bottom: 48px; border-bottom: 1px solid var(--line-light); }
.site-footer .logo-mark { color: #D9A9B1; }
.site-footer .logo-word { color: var(--paper); }
.footer-brand p { margin-top: 18px; font-size: 14.5px; max-width: 320px; color: rgba(242, 238, 230, 0.62); }
.footer-col h4 { font-family: var(--font-mono); font-weight: 500; font-size: 11.5px; letter-spacing: 0.12em; text-transform: uppercase; color: var(--paper); margin-bottom: 18px; }
.footer-col ul { display: grid; gap: 10px; }
.footer-col, .footer-col address { font-size: 14.5px; line-height: 1.7; }
.footer-col a { transition: color 0.2s var(--ease); }
.footer-col a:hover { color: #D9A9B1; }
.footer-bottom { display: flex; justify-content: space-between; gap: 12px; flex-wrap: wrap; padding-top: 24px; font-size: 13px; color: rgba(242, 238, 230, 0.55); }

/* ---------- Reveal on scroll ---------- */
.js .reveal { opacity: 0; transform: translateY(18px); transition: opacity 0.7s var(--ease), transform 0.7s var(--ease); }
.js .reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .js .reveal { opacity: 1; transform: none; transition: none; }
  * { transition-duration: 0.01ms !important; }
}

/* ---------- Tablet ---------- */
@media (max-width: 1024px) {
  .hero-copy { grid-column: 1 / 8; }
  .hero-visual { grid-column: 8 / 13; }
  .about-media { grid-column: 1 / 6; }
  .about-text { grid-column: 6 / 13; }
  .about-cols { column-count: 1; }
  .statement { margin-left: 0; }
  .service-row { grid-template-columns: 44px 40px minmax(0, 1fr); row-gap: 8px; }
  .service-row p { grid-column: 3 / 4; }
  .contact-info { grid-column: 1 / 7; }
  .contact-form { grid-column: 7 / 13; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ---------- Mobile ---------- */
@media (max-width: 820px) {
  .menu-toggle { display: block; }
  .main-nav {
    position: fixed; top: var(--header-h-compact); left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--paper);
    padding: 12px var(--gutter) 28px;
    border-bottom: 1px solid var(--line);
    transform: translateY(-8px); opacity: 0; visibility: hidden;
    transition: opacity 0.25s var(--ease), transform 0.25s var(--ease), visibility 0.25s;
  }
  .main-nav.is-open { transform: none; opacity: 1; visibility: visible; }
  .main-nav ul { flex-direction: column; gap: 0; }
  .main-nav ul a { display: block; padding: 16px 0; font-size: 18px; border-bottom: 1px solid var(--line); }
  .main-nav ul a::after { display: none; }
  .nav-cta { margin-top: 20px; text-align: center; padding: 14px; }

  .hero-grid { display: block; }
  .hero-visual { max-width: 380px; margin: 56px 0 0 auto; }
  .about-grid, .contact-grid, .events-band { display: block; }
  .about-media { max-width: 420px; }
  .about-text { padding-top: 40px; }
  .services-head { display: block; }
  .services-head p:last-child { margin-top: 20px; }
  .service-feature { grid-template-columns: 1fr; }
  .sf-list { border-left: 0; border-top: 1px solid var(--ink); }
  .events-intro { padding: 28px 0 0; }
  .approach-list { grid-template-columns: 1fr; }
  .contact-form { margin-top: 48px; }
}

@media (max-width: 520px) {
  body { font-size: 16px; }
  .facts { grid-template-columns: 1fr; }
  .service-row { grid-template-columns: 36px minmax(0, 1fr); }
  .sr-icon { display: none; }
  .service-row p { grid-column: 2 / 3; }
  .ap-item { grid-template-columns: 1fr; gap: 12px; }
  .footer-grid { grid-template-columns: 1fr; }
  .contact-details > div { grid-template-columns: 1fr; gap: 4px; }
}