/* ==========================================================================
   STUDIO — Base: reset, typography, layout primitives, shared components
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; text-size-adjust: 100%; scroll-behavior: smooth; scroll-padding-top: 96px; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-text);
  font-size: var(--fs-body);
  line-height: var(--lh-body);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
}
img, svg, video, canvas { display: block; max-width: 100%; }
button, input, select, textarea { font: inherit; color: inherit; }
a { color: inherit; text-decoration: none; }
h1, h2, h3, h4, p, ul, ol, figure { margin: 0; }
ul, ol { padding: 0; list-style: none; }
::selection { background: var(--ink); color: var(--bg); }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 3px; border-radius: 6px; }

.sr-only {
  position: absolute !important; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: fixed; left: 16px; top: -60px; z-index: 999;
  background: var(--ink); color: var(--bg); padding: 10px 16px; border-radius: var(--r-pill);
  transition: top var(--t-base) var(--ease-out);
}
.skip-link:focus { top: 16px; }

/* ---- Layout ------------------------------------------------------- */
.container      { width: 100%; max-width: calc(var(--max) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
.container-wide { width: 100%; max-width: calc(var(--max-wide) + var(--gutter) * 2); margin-inline: auto; padding-inline: var(--gutter); }
.section        { padding-block: var(--section-y); position: relative; }

/* ---- Typography --------------------------------------------------- */
.display, .h1, .h2, .h3 { font-family: var(--font-sans); font-weight: 600; color: var(--ink); }
.display { font-size: var(--fs-display); line-height: var(--lh-tight); letter-spacing: var(--tracking-display); font-weight: 650; }
.h1      { font-size: var(--fs-h1); line-height: 1.04; letter-spacing: var(--tracking-display); }
.h2      { font-size: var(--fs-h2); line-height: 1.08; letter-spacing: var(--tracking-tight); }
.h3      { font-size: var(--fs-h3); line-height: var(--lh-snug); letter-spacing: var(--tracking-snug); }
.lead    { font-size: var(--fs-lead); line-height: 1.5; color: var(--ink-3); letter-spacing: -0.01em; max-width: var(--max-text); }
.muted   { color: var(--ink-3); }
.mono    { font-family: var(--font-mono); font-feature-settings: "zero" 1, "ss01" 1; }
.balance { text-wrap: balance; }
.pretty  { text-wrap: pretty; }
.dim     { color: var(--ink-4); }

.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: var(--fs-xs); font-weight: 500;
  text-transform: uppercase; letter-spacing: var(--tracking-caps); color: var(--ink-3);
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px var(--accent-soft);
}
.eyebrow--plain::before { display: none; }

/* ---- Buttons ------------------------------------------------------ */
.btn {
  --btn-bg: var(--ink); --btn-fg: var(--bg);
  position: relative; display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  height: 52px; padding: 0 26px; border-radius: var(--r-pill); border: 0; cursor: pointer;
  background: var(--btn-bg); color: var(--btn-fg);
  font-family: var(--font-text); font-size: 15px; font-weight: 550; letter-spacing: -0.01em; white-space: nowrap;
  transition: transform var(--t-base) var(--ease-out), box-shadow var(--t-base) var(--ease-out), background var(--t-base);
  isolation: isolate; overflow: hidden;
  -webkit-tap-highlight-color: transparent;
}
.btn::before { /* sheen sweep */
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: linear-gradient(110deg, transparent 30%, rgba(255,255,255,.18) 50%, transparent 70%);
  transform: translateX(-120%); transition: transform 900ms var(--ease-out);
}
.btn:hover::before { transform: translateX(120%); }
.btn:hover { transform: translateY(-1px); box-shadow: 0 10px 30px -10px rgba(11,11,13,.45); }
.btn:active { transform: translateY(0) scale(.98); }
.btn .arrow { display: inline-block; transition: transform var(--t-base) var(--ease-out); }
.btn:hover .arrow { transform: translateX(4px); }

.btn--ghost {
  --btn-bg: transparent; --btn-fg: var(--ink);
  box-shadow: inset 0 0 0 1px var(--line-3);
}
.btn--ghost:hover { --btn-bg: var(--bg-elev); box-shadow: inset 0 0 0 1px var(--line-3), var(--shadow-2); }
.btn--light  { --btn-bg: var(--ink-inv); --btn-fg: var(--ink); }
.btn--light:hover { box-shadow: 0 10px 40px -10px rgba(255,255,255,.35); }
.btn--ghost-light { --btn-bg: transparent; --btn-fg: var(--ink-inv); box-shadow: inset 0 0 0 1px var(--line-inv-2); }
.btn--ghost-light:hover { --btn-bg: rgba(255,255,255,.06); }
.btn--accent { --btn-bg: var(--accent); --btn-fg: #fff; }
.btn--accent:hover { box-shadow: 0 14px 40px -12px var(--accent-glow); }
.btn--lg { height: 60px; padding: 0 32px; font-size: 16px; }
.btn--sm { height: 40px; padding: 0 18px; font-size: 14px; }

.link-arrow {
  display: inline-flex; align-items: center; gap: 8px; font-weight: 550; letter-spacing: -0.01em;
  position: relative;
}
.link-arrow::after {
  content: ""; position: absolute; left: 0; right: 1.4em; bottom: -3px; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: left; transition: transform var(--t-base) var(--ease-out);
}
.link-arrow:hover::after { transform: scaleX(1); }
.link-arrow .arrow { transition: transform var(--t-base) var(--ease-out); }
.link-arrow:hover .arrow { transform: translateX(4px); }

/* ---- Navigation --------------------------------------------------- */
.nav {
  position: fixed; inset: 16px 0 auto; z-index: var(--z-nav);
  display: flex; justify-content: center; pointer-events: none;
  padding-inline: var(--gutter);
}
.nav__inner {
  pointer-events: auto;
  display: flex; align-items: center; gap: 8px; width: 100%; max-width: 1080px;
  height: 60px; padding: 0 8px 0 20px; border-radius: var(--r-pill);
  background: transparent; border: 1px solid transparent;
  transition: background var(--t-base), border-color var(--t-base), box-shadow var(--t-base), max-width var(--t-slow) var(--ease-out);
}
.nav.is-scrolled .nav__inner {
  background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
  border-color: var(--line); box-shadow: var(--shadow-2); max-width: 920px;
}
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--font-sans); font-weight: 650; letter-spacing: -0.02em; font-size: 16px; }
.brand__mark { width: 26px; height: 26px; flex: none; }
.brand__sub { color: var(--ink-4); font-weight: 500; }
.nav__links { display: flex; gap: 2px; margin-left: auto; }
.nav__links a {
  padding: 8px 14px; border-radius: var(--r-pill); font-size: 14px; font-weight: 500; color: var(--ink-2);
  transition: background var(--t-fast), color var(--t-fast);
}
.nav__links a:hover { background: var(--line); color: var(--ink); }
.nav__cta { margin-left: 8px; }
.nav__toggle { display: none; }

@media (max-width: 820px) {
  .nav { inset: 10px 0 auto; }
  .nav__inner { height: 56px; padding-left: 16px; }
  .nav__links {
    position: fixed; left: 10px; right: 10px; top: 76px; flex-direction: column; gap: 0; padding: 10px;
    background: rgba(255,255,255,.92); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur);
    border: 1px solid var(--line); border-radius: var(--r-lg); box-shadow: var(--shadow-3);
    opacity: 0; transform: translateY(-8px) scale(.98); pointer-events: none;
    transition: opacity var(--t-base) var(--ease-out), transform var(--t-base) var(--ease-out);
  }
  .nav__links a { padding: 14px 16px; font-size: 17px; }
  .nav.is-open .nav__links { opacity: 1; transform: none; pointer-events: auto; }
  .nav.is-open .nav__inner { background: var(--glass-bg); -webkit-backdrop-filter: var(--glass-blur); backdrop-filter: var(--glass-blur); border-color: var(--line); }
  .nav__cta { margin-left: auto; }
  .nav__toggle {
    display: inline-grid; place-items: center; width: 44px; height: 44px; border: 0; border-radius: 50%;
    background: transparent; cursor: pointer;
  }
  .nav__toggle span { display: block; width: 18px; height: 1.5px; background: var(--ink); border-radius: 2px; transition: transform var(--t-base) var(--ease-out); }
  .nav__toggle span + span { margin-top: 5px; }
  .nav.is-open .nav__toggle span:first-child { transform: translateY(3.25px) rotate(45deg); }
  .nav.is-open .nav__toggle span:last-child  { transform: translateY(-3.25px) rotate(-45deg); }
}
@media (max-width: 420px) { .nav__cta { display: none; } .nav__toggle { margin-left: auto; } }

/* ---- Language switch ---------------------------------------------- */
.lang {
  position: relative; display: inline-grid; grid-template-columns: 1fr 1fr; margin-left: 8px; padding: 3px;
  border-radius: var(--r-pill); background: rgba(11,11,13,.05); box-shadow: inset 0 0 0 1px var(--line);
}
.lang button {
  position: relative; z-index: 1; height: 30px; min-width: 38px; padding: 0 10px; border: 0; border-radius: var(--r-pill);
  background: transparent; cursor: pointer; font: 600 12px/1 var(--font-mono); letter-spacing: .06em; color: var(--ink-3);
  transition: color var(--t-base);
}
.lang button[aria-pressed="true"] { color: var(--ink); }
.lang__thumb {
  position: absolute; top: 3px; bottom: 3px; left: 3px; width: calc(50% - 3px); border-radius: var(--r-pill);
  background: var(--bg-elev); box-shadow: var(--shadow-1), 0 0 0 1px var(--line);
  transition: transform var(--t-base) var(--ease-out);
}
html[lang="de"] .lang__thumb { transform: translateX(100%); }
@media (max-width: 820px) { .lang { margin-left: auto; } .nav__cta { margin-left: 8px; } }

/* ---- Browser frame (reusable) ------------------------------------- */
.browser {
  --chrome-h: 40px;
  position: relative; border-radius: 14px; overflow: hidden;
  background: var(--bg-elev);
  box-shadow: 0 0 0 1px var(--line-2), var(--shadow-float);
}
.browser__bar {
  display: grid; grid-template-columns: auto 1fr auto; align-items: center; gap: 12px;
  height: var(--chrome-h); padding: 0 14px;
  background: linear-gradient(#FBFBFA, #F4F4F2); border-bottom: 1px solid var(--line);
}
.browser__dots { display: flex; gap: 7px; }
.browser__dots i { width: 11px; height: 11px; border-radius: 50%; background: #E2E2DF; box-shadow: inset 0 0 0 .5px rgba(0,0,0,.08); }
.browser:hover .browser__dots i:nth-child(1) { background: #FF5F57; }
.browser:hover .browser__dots i:nth-child(2) { background: #FEBC2E; }
.browser:hover .browser__dots i:nth-child(3) { background: #28C840; }
.browser__dots i { transition: background var(--t-base); }
.browser__url {
  justify-self: center; display: flex; align-items: center; gap: 6px;
  height: 24px; min-width: 0; max-width: 360px; width: 70%; padding: 0 10px; border-radius: 7px;
  background: rgba(11,11,13,.045); color: var(--ink-3); font-size: 11.5px; letter-spacing: 0;
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis; justify-content: center;
}
.browser__url svg { width: 10px; height: 10px; flex: none; opacity: .6; }
.browser__actions { display: flex; gap: 10px; opacity: .45; }
.browser__actions i { width: 14px; height: 2px; border-radius: 2px; background: var(--ink-3); }
.browser__viewport { position: relative; overflow: hidden; container-type: inline-size; }
.browser--dark { background: #0E0F12; box-shadow: 0 0 0 1px rgba(255,255,255,.08), var(--shadow-float); }
.browser--dark .browser__bar { background: linear-gradient(#1A1C21, #141519); border-color: rgba(255,255,255,.06); }
.browser--dark .browser__dots i { background: #34363C; }
.browser--dark .browser__url { background: rgba(255,255,255,.06); color: rgba(255,255,255,.5); }
@media (max-width: 640px) {
  .browser { --chrome-h: 30px; border-radius: 10px; }
  .browser__bar { padding: 0 10px; gap: 8px; }
  .browser__dots { gap: 5px; } .browser__dots i { width: 8px; height: 8px; }
  .browser__url { height: 18px; font-size: 9.5px; }
  .browser__actions { display: none; }
}

/* ---- Reveal on scroll --------------------------------------------- */
[data-reveal] {
  opacity: 0; transform: translateY(28px);
  transition: opacity var(--t-reveal) var(--ease-out), transform var(--t-reveal) var(--ease-out);
  transition-delay: calc(var(--d, 0) * 90ms);
}
[data-reveal="fade"]  { transform: none; }
[data-reveal="scale"] { transform: scale(.96) translateY(24px); }
[data-reveal].is-in   { opacity: 1; transform: none; }
.no-js [data-reveal]  { opacity: 1; transform: none; }

/* Split headline reveal: each word slides up from a mask */
.split .w { display: inline-block; overflow: hidden; vertical-align: top; padding-bottom: .08em; margin-bottom: -.08em; }
.split .w > span {
  display: inline-block; transform: translateY(105%);
  transition: transform 1100ms var(--ease-out); transition-delay: calc(var(--i) * 55ms + var(--base, 0ms));
}
.split.is-in .w > span { transform: none; }

/* ---- Footer ------------------------------------------------------- */
.footer { padding: 72px 0 40px; border-top: 1px solid var(--line); background: var(--bg); }
.footer__grid { display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 48px; align-items: start; }
.footer__name { font-family: var(--font-sans); font-size: 22px; font-weight: 600; letter-spacing: -0.02em; margin-top: 18px; }
.footer__tag { color: var(--ink-3); margin-top: 6px; font-size: 15px; max-width: 320px; }
.footer h4 { font-family: var(--font-mono); font-size: 11px; text-transform: uppercase; letter-spacing: var(--tracking-caps); color: var(--ink-4); font-weight: 500; margin-bottom: 14px; }
.footer li + li { margin-top: 8px; }
.footer li a { color: var(--ink-2); font-size: 15px; transition: color var(--t-fast); }
.footer li a:hover { color: var(--ink); }
.footer__bottom { display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; margin-top: 72px; padding-top: 24px; border-top: 1px solid var(--line); color: var(--ink-4); font-size: 13px; }
@media (max-width: 720px) { .footer__grid { grid-template-columns: 1fr 1fr; } .footer__grid > :first-child { grid-column: 1 / -1; } }

/* ---- Legal pages -------------------------------------------------- */
.legal { padding: 160px 0 120px; }
.legal__inner { max-width: 760px; }
.legal h1 { margin-bottom: 16px; }
.legal h2 { font-family: var(--font-sans); font-size: 22px; letter-spacing: -0.02em; margin: 48px 0 12px; font-weight: 600; }
.legal h3 { font-size: 17px; margin: 28px 0 8px; font-weight: 600; }
.legal p, .legal li { color: var(--ink-2); line-height: 1.7; }
.legal p + p { margin-top: 12px; }
.legal ul { list-style: disc; padding-left: 20px; margin-top: 8px; }
.legal a { text-decoration: underline; text-underline-offset: 3px; text-decoration-color: var(--line-3); }
.legal address { font-style: normal; line-height: 1.7; color: var(--ink-2); }
.legal .note {
  margin-top: 32px; padding: 16px 18px; border-radius: var(--r-md); background: var(--accent-soft);
  color: #9A3412; font-size: 14px; line-height: 1.55; border: 1px solid rgba(255,91,31,.2);
}
.placeholder { background: rgba(232,163,23,.16); border-radius: 4px; padding: 0 4px; }

/* ---- Reduced motion ----------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  [data-reveal], .split .w > span { opacity: 1 !important; transform: none !important; }
}