/* ============================================================
   Schillerkraft — business consulting
   Design system: heritage "brand-sheet" color blocking,
   vintage-warm palette, engraved crest, prowling-cat motif.
   ============================================================ */

/* ---- Tokens ------------------------------------------------ */
:root {
  /* Brand palette (from assets/Color/Vectors/SK_Colors.svg) */
  --olive:  #3d431e;
  --red:    #e53f2e;
  --orange: #ff8b00;
  --salmon: #ffa28d;
  --teal:   #79babf;

  /* Derived neutrals — warm, kept off the AI-cream default */
  --ink:      #2b3016;   /* deepest olive, body text */
  --paper:    #f6efe2;   /* warm bone */
  --paper-2:  #efe4d1;   /* deeper paper for cards */
  --line:     #d9ccb2;   /* hairline on paper */
  --olive-70: color-mix(in srgb, var(--olive) 70%, transparent);

  /* Type */
  --display: "Fraunces", Georgia, serif;
  --sans: "Instrument Sans", system-ui, -apple-system, sans-serif;
  --mono: "Spline Sans Mono", ui-monospace, "SFMono-Regular", monospace;

  /* Space */
  --gutter: clamp(1.25rem, 5vw, 5rem);
  --section-y: clamp(4.5rem, 9vw, 8rem);
  --maxw: 1240px;

  --radius: 2px;
}

/* ---- Reset ------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  font-family: var(--sans);
  font-size: clamp(1rem, 0.96rem + 0.2vw, 1.1rem);
  line-height: 1.65;
  color: var(--ink);
  background: var(--paper);
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, svg { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; cursor: pointer; }
ul { list-style: none; padding: 0; }

/* ---- Type ------------------------------------------------- */
h1, h2, h3, h4 {
  font-family: var(--display);
  font-optical-sizing: auto;
  font-weight: 460;
  line-height: 1.04;
  letter-spacing: -0.015em;
  color: var(--olive);
  text-wrap: balance;
}
h1 em, h2 em, h3 em { font-style: italic; font-weight: 420; }

.eyebrow {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.24em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--red);
  display: inline-flex;
  align-items: center;
  flex-wrap: wrap;
  max-width: 100%;
  gap: 0.5em 0.7em;
}
.eyebrow::before {
  content: "";
  width: 1.6em; height: 1px;
  background: currentColor;
  display: inline-block;
}
.lead { font-size: clamp(1.15rem, 1rem + 0.6vw, 1.4rem); line-height: 1.5; color: color-mix(in srgb, var(--ink) 88%, transparent); }

/* ---- Layout ----------------------------------------------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: var(--section-y); }
.stack > * + * { margin-top: 1.1rem; }
.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--olive); color: var(--paper);
  padding: 0.6rem 1rem; z-index: 200;
}
.skip-link:focus { left: 0.5rem; top: 0.5rem; }

/* ---- Header / Nav ----------------------------------------- */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: color-mix(in srgb, var(--paper) 88%, transparent);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}
/* Homepage: header stays hidden over the hero cover, then slides in */
.site-header--cover {
  position: fixed; inset: 0 0 auto 0;
  transform: translateY(-100%);
  transition: transform 0.4s cubic-bezier(0.22, 1, 0.36, 1);
}
.site-header--cover.is-visible,
.site-header--cover:focus-within { transform: translateY(0); }
.nav {
  display: flex; align-items: center; justify-content: space-between;
  gap: 1.5rem;
  padding-block: 0.9rem;
}
.brand { display: flex; align-items: center; gap: 0.6rem; color: var(--red); }
.brand__mark { height: 38px; width: auto; color: var(--olive); }
.brand__word { height: 21px; width: auto; color: var(--red); }
.brand:hover .brand__mark { color: var(--red); }

.nav__links { display: flex; align-items: center; gap: clamp(1rem, 2.5vw, 2.2rem); }
.nav__links a:not(.btn) {
  font-size: 0.95rem; font-weight: 500;
  position: relative; padding-block: 0.3rem;
  color: color-mix(in srgb, var(--ink) 82%, transparent);
}
.nav__links a:not(.btn)::after {
  content: ""; position: absolute; left: 0; bottom: 0;
  width: 100%; height: 1.5px; background: var(--red);
  transform: scaleX(0); transform-origin: left; transition: transform 0.25s ease;
}
.nav__links a:not(.btn):hover, .nav__links a:not(.btn)[aria-current="page"] { color: var(--olive); }
.nav__links a:not(.btn):hover::after, .nav__links a:not(.btn)[aria-current="page"]::after { transform: scaleX(1); }

.nav__toggle { display: none; border: 1px solid var(--line); background: none; padding: 0.5rem 0.7rem; border-radius: var(--radius); }

/* ---- Buttons ---------------------------------------------- */
.btn {
  display: inline-flex; align-items: center; gap: 0.55rem;
  padding: 0.85rem 1.5rem;
  font-weight: 600; font-size: 0.95rem;
  border-radius: 100px;
  border: 1.5px solid transparent;
  transition: transform 0.18s ease, background 0.2s ease, color 0.2s ease, border-color 0.2s ease;
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn:active { transform: translateY(0); }
.btn--primary { background: var(--red); color: var(--paper); }
.btn--primary:hover { background: var(--olive); }
.btn--ghost { border-color: currentColor; color: var(--olive); }
.btn--ghost:hover { background: var(--olive); color: var(--paper); border-color: var(--olive); }
.btn .arrow { transition: transform 0.2s ease; }
.btn:hover .arrow { transform: translateX(3px); }

:where(a, button):focus-visible {
  outline: 2.5px solid var(--red);
  outline-offset: 3px;
  border-radius: var(--radius);
}

/* ---- Hero (home) ------------------------------------------ */
.hero { position: relative; overflow: hidden; }
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  align-items: stretch;
  min-height: min(78vh, 720px);
}
.hero__copy {
  display: flex; flex-direction: column; justify-content: center;
  gap: 1.5rem;
  padding: clamp(3rem, 7vw, 6rem) var(--gutter);
  max-width: 40rem;
  margin-left: auto; width: 100%; min-width: 0;
}
.hero__title { overflow-wrap: break-word; }
.hero__title { font-size: clamp(2.9rem, 2rem + 4vw, 5.4rem); font-weight: 420; }
.hero__title .swash { color: var(--red); }
.hero__actions { display: flex; flex-wrap: wrap; gap: 0.9rem; margin-top: 0.6rem; }

/* Brand-sheet color panel holding the crest */
.hero__crest {
  position: relative;
  background: var(--teal);
  display: grid;
  place-items: center;
  overflow: hidden;
}
.hero__crest::before,
.hero__crest::after {
  content: ""; position: absolute; z-index: 0;
}
/* offset color blocks echoing the brand sheet */
.hero__crest::before { inset: auto 0 0 0; height: 34%; background: var(--salmon); }
.hero__crest::after { inset: 0 auto 0 0; width: 26%; background: color-mix(in srgb, var(--teal) 82%, var(--olive)); }
.hero__crest .crest {
  position: relative; z-index: 2;
  width: min(66%, 340px);
  color: var(--olive);
  filter: drop-shadow(0 12px 30px rgba(43,48,22,0.18));
}
.hero__stamp {
  position: absolute; z-index: 3; bottom: 1.25rem; right: 1.25rem;
  font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.2em;
  text-transform: uppercase; color: var(--olive-70);
}

/* ---- Hero color-block (cat-forward) ----------------------- */
.hero-block {
  position: relative;
  background: var(--salmon);
  min-height: 100svh;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  gap: 1.4rem; text-align: center;
  padding: 3.5rem var(--gutter) 4.5rem;
  overflow: hidden;
}
.hero-block__mark { color: var(--olive); height: min(40vh, 350px); }
.hero-block__scroll {
  position: absolute; bottom: 1.6rem; left: 50%;
  width: 2.6rem; height: 2.6rem;
  display: grid; place-items: center;
  color: var(--olive); font-size: 1.2rem; line-height: 1;
  border: 1.5px solid color-mix(in srgb, var(--olive) 38%, transparent);
  border-radius: 50%;
  transform: translateX(-50%);
  animation: bob 2.2s ease-in-out infinite;
  transition: background 0.2s ease, color 0.2s ease;
}
.hero-block__scroll:hover { background: var(--olive); color: var(--salmon); }
@keyframes bob { 0%, 100% { transform: translate(-50%, 0); } 50% { transform: translate(-50%, 7px); } }

/* ---- Statement (moved hero copy) -------------------------- */
.statement { max-width: 60rem; }
.statement__title {
  font-size: clamp(2.6rem, 1.8rem + 3.6vw, 4.8rem);
  font-weight: 420; line-height: 1.04;
}
.statement__title .swash { color: var(--red); font-style: italic; }
.statement .lead { margin-top: 1.5rem; max-width: 44rem; }
.statement .hero__actions { margin-top: 2rem; }

/* ---- Marquee capabilities strip --------------------------- */
.strip {
  background: var(--olive); color: var(--paper);
  overflow: hidden; border-block: 1px solid var(--olive);
}
.strip__track {
  display: flex; gap: 3rem; width: max-content;
  padding-block: 0.85rem;
  animation: marquee 32s linear infinite;
}
.strip__track span {
  font-family: var(--mono); font-size: 0.8rem; letter-spacing: 0.16em;
  text-transform: uppercase; display: inline-flex; align-items: center; gap: 3rem;
  color: color-mix(in srgb, var(--paper) 85%, transparent);
}
.strip__track span::after { content: "✳"; color: var(--orange); }
@keyframes marquee { to { transform: translateX(-50%); } }

/* ---- Section headers -------------------------------------- */
.sec-head { max-width: 46rem; margin-bottom: clamp(2.5rem, 5vw, 4rem); }
.sec-head h2 { font-size: clamp(2rem, 1.4rem + 2.6vw, 3.4rem); margin-top: 0.9rem; }
.sec-head.center { margin-inline: auto; text-align: center; }
.sec-head.center .eyebrow::before { display: none; }

/* ---- Services preview cards -------------------------------- */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(250px, 1fr)); gap: 1.25rem; }
.card {
  position: relative;
  background: var(--paper-2);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 1.9rem 1.75rem 2.1rem;
  display: flex; flex-direction: column; gap: 0.75rem;
  overflow: hidden;
  transition: transform 0.25s ease, border-color 0.25s ease, background 0.25s ease;
}
.card:hover { transform: translateY(-5px); border-color: var(--olive); }
.card__idx { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.2em; color: var(--red); }
.card h3 { font-size: 1.45rem; }
.card p { color: color-mix(in srgb, var(--ink) 80%, transparent); font-size: 0.98rem; }
.card__mark { position: absolute; right: -12px; bottom: -14px; width: 92px; color: var(--salmon); opacity: 0.55; transition: transform 0.4s ease, color 0.3s ease; pointer-events: none; }
.card:hover .card__mark { transform: translateY(-6px) rotate(-4deg); color: var(--orange); }

/* ---- Full-bleed color panels ------------------------------ */
.panel { position: relative; overflow: hidden; }
.panel--olive  { background: var(--olive);  color: var(--paper); }
.panel--teal   { background: var(--teal);   color: var(--ink); }
.panel--salmon { background: var(--salmon); color: var(--ink); }
.panel--olive h2, .panel--olive h3 { color: var(--paper); }
.panel--olive .eyebrow { color: var(--orange); }
.panel--olive .lead { color: color-mix(in srgb, var(--paper) 85%, transparent); }

/* ---- Process / method (numbered = real sequence) ---------- */
.steps { display: grid; gap: 0; margin-top: 1rem; }
.step {
  display: grid; grid-template-columns: 4.5rem 1fr; gap: 1.5rem;
  padding-block: 1.8rem;
  border-top: 1px solid color-mix(in srgb, var(--paper) 25%, transparent);
  align-items: baseline;
}
.step:last-child { border-bottom: 1px solid color-mix(in srgb, var(--paper) 25%, transparent); }
.step__n { font-family: var(--display); font-size: 2.4rem; font-style: italic; color: var(--orange); line-height: 1; }
.step h3 { font-size: 1.4rem; margin-bottom: 0.4rem; }
.step p { color: color-mix(in srgb, var(--paper) 82%, transparent); max-width: 42rem; }

/* ---- Stats ------------------------------------------------ */
.stats { display: grid; grid-template-columns: repeat(auto-fit, minmax(160px, 1fr)); gap: 1.5rem 2rem; }
.stat { border-top: 2px solid var(--red); padding-top: 1rem; }
.stat__num { font-family: var(--display); font-size: clamp(2.6rem, 2rem + 2vw, 3.8rem); line-height: 0.95; color: var(--olive); }
.stat__num .unit { color: var(--red); }
.stat__label { font-size: 0.9rem; color: color-mix(in srgb, var(--ink) 75%, transparent); margin-top: 0.5rem; }

/* ---- Quote / principle ------------------------------------ */
.principle { display: grid; grid-template-columns: minmax(0,1fr) minmax(0,1.2fr); gap: clamp(2rem,5vw,4rem); align-items: center; }
.principle__mark { color: var(--paper); width: min(80%, 300px); margin-inline: auto; }
.principle blockquote { font-family: var(--display); font-size: clamp(1.6rem, 1.2rem + 2vw, 2.8rem); line-height: 1.18; color: var(--paper); font-weight: 380; }
.principle cite { display: block; margin-top: 1.5rem; font-family: var(--mono); font-size: 0.78rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--orange); font-style: normal; }

/* ---- CTA band --------------------------------------------- */
.cta-band { text-align: center; }
.cta-band h2 { font-size: clamp(2.2rem, 1.6rem + 3vw, 4rem); }
.cta-band .btn { margin-top: 2rem; }

/* ---- About: portrait + text ------------------------------- */
.split { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(2rem, 5vw, 4.5rem); align-items: center; }
.portrait {
  position: relative; aspect-ratio: 4/5; border-radius: var(--radius);
  background: var(--teal); overflow: hidden;
  display: grid; place-items: end center;
  border: 1px solid var(--line);
}
.portrait::before { content:""; position:absolute; inset: auto 0 0 0; height: 40%; background: var(--salmon); }
.portrait .cat { position: relative; z-index: 2; width: 62%; color: var(--olive); margin-bottom: -2%; }
.portrait__tag { position: absolute; z-index: 3; top: 1rem; left: 1rem; font-family: var(--mono); font-size: 0.66rem; letter-spacing: 0.18em; text-transform: uppercase; color: var(--olive-70); }

/* ---- Values / meaning grid -------------------------------- */
.meaning { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px,1fr)); gap: 2rem; }
.meaning__item { display: flex; flex-direction: column; gap: 0.9rem; }
.meaning__icon { height: 58px; width: auto; color: var(--red); }
.meaning__item h3 { font-size: 1.3rem; }
.meaning__item p { color: color-mix(in srgb, var(--ink) 80%, transparent); font-size: 0.98rem; }

/* ---- Services detail list --------------------------------- */
.service { display: grid; grid-template-columns: 5rem 1.4fr 1fr; gap: clamp(1.5rem,4vw,3.5rem); padding-block: clamp(2.5rem,5vw,3.5rem); border-top: 1px solid var(--line); align-items: start; }
.service:last-child { border-bottom: 1px solid var(--line); }
.service__idx { font-family: var(--mono); font-size: 0.85rem; letter-spacing: 0.15em; color: var(--red); padding-top: 0.4rem; }
.service h3 { font-size: clamp(1.6rem, 1.2rem + 1.5vw, 2.4rem); margin-bottom: 0.8rem; }
.service__list { display: flex; flex-direction: column; gap: 0.65rem; padding-top: 0.5rem; }
.service__list li { display: flex; gap: 0.6rem; font-size: 0.95rem; color: color-mix(in srgb, var(--ink) 82%, transparent); }
.service__list li::before { content: ""; flex: none; width: 7px; height: 7px; margin-top: 0.55em; background: var(--orange); border-radius: 50%; }

/* ---- Contact ---------------------------------------------- */
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: clamp(2rem, 5vw, 4rem); }
.field { display: flex; flex-direction: column; gap: 0.45rem; margin-bottom: 1.2rem; }
.field label { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--olive); }
.field input, .field textarea, .field select {
  font: inherit; font-size: 0.98rem; color: var(--ink);
  background: var(--paper); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 0.8rem 0.9rem; width: 100%;
}
.field input:focus, .field textarea:focus, .field select:focus { outline: none; border-color: var(--red); box-shadow: 0 0 0 3px color-mix(in srgb, var(--red) 18%, transparent); }
.field textarea { resize: vertical; min-height: 130px; }
.contact-detail { display: flex; flex-direction: column; gap: 1.6rem; }
.contact-detail dt { font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.16em; text-transform: uppercase; color: var(--red); margin-bottom: 0.3rem; }
.contact-detail dd { font-size: 1.1rem; color: var(--olive); }
.contact-detail a:hover { color: var(--red); }

/* ---- FAQ -------------------------------------------------- */
.faq { border-top: 1px solid var(--line); }
.faq details { border-bottom: 1px solid var(--line); padding: 1.3rem 0; }
.faq summary { font-family: var(--display); font-size: 1.25rem; color: var(--olive); cursor: pointer; list-style: none; display: flex; justify-content: space-between; gap: 1rem; align-items: center; }
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after { content: "+"; font-family: var(--sans); color: var(--red); font-size: 1.6rem; line-height: 1; transition: transform 0.2s ease; }
.faq details[open] summary::after { transform: rotate(45deg); }
.faq p { margin-top: 0.9rem; color: color-mix(in srgb, var(--ink) 82%, transparent); max-width: 48rem; }

/* ---- Footer ----------------------------------------------- */
.site-footer { background: var(--ink); color: var(--paper); padding-block: clamp(3.5rem, 6vw, 5.5rem) 2rem; position: relative; overflow: hidden; }
.footer-cat { position: absolute; right: clamp(-30px, 2vw, 40px); bottom: -20px; width: clamp(150px, 20vw, 280px); color: var(--orange); opacity: 0.9; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 2.5rem; position: relative; z-index: 2; }
.site-footer .brand__word { color: var(--salmon); height: 26px; }
.footer-tag { margin-top: 1rem; max-width: 24rem; color: color-mix(in srgb, var(--paper) 78%, transparent); }
.footer-col h4 { font-family: var(--mono); font-weight: 500; font-size: 0.72rem; letter-spacing: 0.2em; text-transform: uppercase; color: var(--orange); margin-bottom: 1.1rem; }
.footer-col a { display: block; padding: 0.35rem 0; color: color-mix(in srgb, var(--paper) 82%, transparent); }
.footer-col a:hover { color: var(--paper); }
.footer-bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; margin-top: 3.5rem; padding-top: 1.5rem; border-top: 1px solid color-mix(in srgb, var(--paper) 18%, transparent); font-family: var(--mono); font-size: 0.72rem; letter-spacing: 0.06em; color: color-mix(in srgb, var(--paper) 60%, transparent); position: relative; z-index: 2; }

/* ---- Marks (CSS masks so brand color = `color`) ----------- */
.mask {
  background-color: currentColor;
  -webkit-mask-position: center; mask-position: center;
  -webkit-mask-size: contain;   mask-size: contain;
  -webkit-mask-repeat: no-repeat; mask-repeat: no-repeat;
  display: inline-block; flex: none;
}
.m-letter { -webkit-mask-image: url(img/letter.svg);   mask-image: url(img/letter.svg);   aspect-ratio: 249.46/196.53; }
.m-word   { -webkit-mask-image: url(img/wordmark.svg); mask-image: url(img/wordmark.svg); aspect-ratio: 614.7/141.81; }
.m-cat    { -webkit-mask-image: url(img/cat.svg);      mask-image: url(img/cat.svg);      aspect-ratio: 248.94/454.06; }
.m-palm   { -webkit-mask-image: url(img/palm.svg);     mask-image: url(img/palm.svg);     aspect-ratio: 327.34/518.98; }
.m-crest  { -webkit-mask-image: url(img/crest.svg);    mask-image: url(img/crest.svg);    aspect-ratio: 476.34/660.79; }

/* ---- Scroll reveal ---------------------------------------- */
.reveal { opacity: 0; transform: translateY(22px); transition: opacity 0.7s ease, transform 0.7s cubic-bezier(0.22,1,0.36,1); }
.reveal.in { opacity: 1; transform: none; }

/* ---- Responsive ------------------------------------------- */
@media (max-width: 900px) {
  .hero__grid { grid-template-columns: 1fr; min-height: 0; }
  .hero__crest { min-height: 46vh; order: -1; }
  .hero__copy { margin-inline: auto; padding-block: 3rem; }
  .principle { grid-template-columns: 1fr; }
  .principle__mark { display: none; }
  .split { grid-template-columns: 1fr; }
  .portrait { max-width: 380px; }
  .contact-grid { grid-template-columns: 1fr; }
  .service { grid-template-columns: 3rem 1fr; }
  .service__list { grid-column: 2; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 680px) {
  .nav__links {
    position: fixed; inset: 61px 0 auto 0;
    flex-direction: column; align-items: flex-start; gap: 0;
    background: var(--paper); border-bottom: 1px solid var(--line);
    padding: 0.5rem var(--gutter) 1.5rem;
    transform: translateY(-120%); transition: transform 0.3s ease;
    box-shadow: 0 20px 30px -20px rgba(43,48,22,0.3);
  }
  .nav__links.open { transform: translateY(0); }
  .nav__links li { width: 100%; }
  .nav__links a { display: block; padding: 0.85rem 0; width: 100%; border-bottom: 1px solid var(--line); }
  .nav__links .btn { margin-top: 0.8rem; justify-content: center; width: 100%; }
  .nav__toggle { display: inline-flex; }
  .footer-grid { grid-template-columns: 1fr; gap: 2rem; }
  .step { grid-template-columns: 1fr; gap: 0.4rem; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; }
  .strip__track { animation: none; }
}