/* Haartist Coiffure — Redesign Demo von digital M.
   Design: Urban Cool / Bold Modern
   Palette: Graphit, Elektrik-Creme, Acid Yellow
*/

:root {
  --graphit: #1C1C1E;
  --graphit-2: #2A2A2D;
  --graphit-3: #3A3A3E;
  --creme: #F3EDE0;
  --creme-2: #EAE2D0;
  --acid: #D9FF5F;
  --acid-hover: #C9F04C;
  --white: #FFFFFF;
  --muted: #8A8A90;
  --line: rgba(255,255,255,0.12);
  --line-dark: rgba(28,28,30,0.12);
  --font-display: "Space Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, sans-serif;
  --max: 1280px;
  --gutter: clamp(1.25rem, 4vw, 2.5rem);
}

* { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--graphit);
  background: var(--creme);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img { max-width: 100%; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: none; background: none; }

/* Demo Banner */
.demo-banner {
  background: var(--acid);
  color: var(--graphit);
  text-align: center;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 0.55rem 1rem;
  border-bottom: 2px solid var(--graphit);
}
.demo-banner a { text-decoration: underline; text-underline-offset: 3px; }

/* Nav */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: var(--graphit);
  color: var(--creme);
  border-bottom: 1px solid var(--line);
}
.nav__inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1rem var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
}
.nav__logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}
.nav__logo span { color: var(--acid); }
.nav__links {
  display: flex;
  gap: 2rem;
  list-style: none;
  font-family: var(--font-display);
  font-size: 0.88rem;
  font-weight: 500;
}
.nav__links a {
  position: relative;
  padding-bottom: 2px;
  transition: color 0.2s;
}
.nav__links a:hover { color: var(--acid); }
.nav__links a.active { color: var(--acid); }
.nav__cta {
  background: var(--acid);
  color: var(--graphit);
  padding: 0.7rem 1.2rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 2px;
  transition: transform 0.2s, background 0.2s;
}
.nav__cta:hover { background: var(--acid-hover); transform: translateY(-1px); }
.nav__toggle { display: none; color: var(--creme); font-size: 1.5rem; }

@media (max-width: 900px) {
  .nav__links, .nav__cta { display: none; }
  .nav__toggle { display: block; }
  .nav--open .nav__links {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--graphit);
    padding: 1.5rem var(--gutter);
    border-bottom: 1px solid var(--line);
  }
  .nav--open .nav__cta {
    display: inline-block;
    position: absolute;
    top: calc(100% + 15rem);
    left: var(--gutter);
  }
}

/* Footer */
.footer {
  background: var(--graphit);
  color: var(--creme);
  padding: 4rem var(--gutter) 2rem;
  margin-top: 6rem;
}
.footer__inner {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem;
  padding-bottom: 3rem;
  border-bottom: 1px solid var(--line);
}
.footer h4 {
  font-family: var(--font-display);
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--acid);
  margin-bottom: 1rem;
}
.footer__brand p { color: var(--muted); font-size: 0.9rem; max-width: 32ch; }
.footer__brand .brand-mark {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 700;
  margin-bottom: 0.75rem;
}
.footer__brand .brand-mark span { color: var(--acid); }
.footer ul { list-style: none; }
.footer li { margin-bottom: 0.5rem; font-size: 0.9rem; }
.footer a:hover { color: var(--acid); }
.footer__bottom {
  max-width: var(--max);
  margin: 2rem auto 0;
  display: flex;
  justify-content: space-between;
  font-size: 0.8rem;
  color: var(--muted);
  flex-wrap: wrap;
  gap: 1rem;
}
.footer__bottom a { color: var(--acid); }
@media (max-width: 780px) {
  .footer__inner { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 480px) {
  .footer__inner { grid-template-columns: 1fr; }
}

/* Typography utils */
.eyebrow {
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  color: var(--graphit);
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
}
.eyebrow::before {
  content: "";
  width: 24px;
  height: 2px;
  background: var(--acid);
}
.eyebrow--light { color: var(--creme); }

h1, h2, h3, h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 1.05;
  letter-spacing: -0.025em;
  color: var(--graphit);
}
h1 { font-size: clamp(2.5rem, 7vw, 6rem); }
h2 { font-size: clamp(2rem, 5vw, 3.8rem); }
h3 { font-size: clamp(1.3rem, 2vw, 1.6rem); }
.display {
  font-size: clamp(3.5rem, 11vw, 10rem);
  line-height: 0.88;
  letter-spacing: -0.04em;
}

/* Layout helpers */
.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}
.section { padding: 6rem 0; }
.section--tight { padding: 4rem 0; }
.section--dark { background: var(--graphit); color: var(--creme); }
.section--dark h1, .section--dark h2, .section--dark h3 { color: var(--creme); }
.section--dark .eyebrow { color: var(--creme); }

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  padding: 1rem 1.75rem;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.92rem;
  letter-spacing: 0.01em;
  border-radius: 2px;
  transition: transform 0.2s, background 0.2s;
}
.btn--primary { background: var(--acid); color: var(--graphit); }
.btn--primary:hover { background: var(--acid-hover); transform: translateY(-2px); }
.btn--dark { background: var(--graphit); color: var(--creme); }
.btn--dark:hover { background: var(--graphit-2); transform: translateY(-2px); }
.btn--outline {
  border: 2px solid var(--graphit);
  color: var(--graphit);
}
.btn--outline:hover { background: var(--graphit); color: var(--creme); }
.btn__arrow { font-size: 1.2rem; line-height: 1; }

/* Page header (generic for non-home pages) */
.page-header {
  background: var(--graphit);
  color: var(--creme);
  padding: 7rem var(--gutter) 6rem;
  position: relative;
  overflow: hidden;
}
.page-header__inner {
  max-width: var(--max);
  margin: 0 auto;
  position: relative;
  z-index: 2;
}
.page-header h1 {
  color: var(--creme);
  margin: 1rem 0 1.5rem;
}
.page-header p {
  max-width: 56ch;
  color: rgba(243,237,224,0.75);
  font-size: 1.1rem;
}
.page-header::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 55%;
  height: 200%;
  background:
    radial-gradient(circle at 30% 30%, rgba(217,255,95,0.25), transparent 60%);
  pointer-events: none;
}
.page-header__number {
  font-family: var(--font-display);
  font-size: 0.8rem;
  color: var(--acid);
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

/* Acid mark */
.mark {
  background: var(--acid);
  color: var(--graphit);
  padding: 0 0.15em;
  display: inline-block;
  transform: skew(-4deg);
}

/* Utility */
.grid { display: grid; gap: 2rem; }
.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
@media (max-width: 900px) {
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 600px) {
  .grid--2, .grid--3, .grid--4 { grid-template-columns: 1fr; }
}

/* Info blocks (generic) */
.info-card {
  background: var(--white);
  padding: 2rem;
  border: 1px solid var(--line-dark);
  transition: transform 0.25s, border-color 0.25s;
}
.info-card:hover {
  transform: translateY(-4px);
  border-color: var(--graphit);
}
.info-card h3 { margin-bottom: 0.75rem; font-size: 1.35rem; }
.info-card p { color: var(--graphit-3); font-size: 0.95rem; }
.info-card__num {
  font-family: var(--font-display);
  color: var(--acid);
  background: var(--graphit);
  padding: 0.2rem 0.55rem;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  display: inline-block;
  margin-bottom: 1rem;
}