/* ==========================================================================
   YAPAY ZEKÂ REHBERİ — shared stylesheet (tr, LTR, single page: index.php)

   SHARED MARKUP CONTRACT
   --------------------------------------------------------------------------
   <html lang="tr" dir="ltr">   JS adds class "js" to <html> as early as possible.
   <body class="page page-home">   JS toggles "nav-open" on <body> while the mobile menu is open.

   <a class="skip-link" href="#main">İçeriğe geç</a>

   <header class="site-header" data-header>            + ".is-scrolled" once scrolled
     <div class="container site-header__inner">
       <a class="brand" href="index.php">
         <span class="brand__mark" aria-hidden="true"></span>
         <span class="brand__name">YZ Rehber</span>
       </a>
       <button class="nav-toggle" type="button" aria-expanded="false"
               aria-controls="site-nav" data-nav-toggle>
         <span class="visually-hidden">Menü</span>
         <span class="nav-toggle__bar" aria-hidden="true"></span>
         <span class="nav-toggle__bar" aria-hidden="true"></span>
       </button>
       <nav class="site-nav" id="site-nav" data-nav aria-label="Ana menü">   + ".is-open"
         <ul class="site-nav__list">
           <li class="site-nav__item"><a class="site-nav__link" href="#rehber" data-scroll>Rehber</a></li>
         </ul>                      active link: ".is-active" or aria-current="true"
       </nav>
     </div>
   </header>

   <main id="main">
     HERO
     <section class="hero" id="top">
       <div class="container hero__inner">
         <figure class="hero__figure" data-reveal>
           <img class="hero__graphic" src="img/hero-graphic.jpg" alt="…" width="1024" height="1024">
         </figure>
         <div class="hero__content" data-reveal data-reveal-delay="1">
           <p class="eyebrow">…</p>
           <h1 class="hero__title"><em>Yapay zekâ,</em> cebindeki yeni <strong>takım arkadaşın.</strong></h1>
           <p class="hero__lead">…</p>
           <div class="hero__actions">
             <a class="btn btn--primary" href="#rehber" data-scroll>
               <span class="btn__label">Rehbere Kaydır</span>
               <span class="btn__icon" aria-hidden="true"><svg viewBox="0 0 24 24" focusable="false"><path d="M12 5v14M6 13l6 6 6-6"/></svg></span>
             </a>
           </div>
         </div>
       </div>
     </section>
     (hero backgrounds are applied in CSS: bg-mobile.jpg < 768px, bg-desktop.jpg >= 768px)

     FEATURES / GUIDE (timeline of three steps)
     <section class="section features" id="rehber">
       <div class="container">
         <header class="section__head" data-reveal>
           <p class="eyebrow">…</p>
           <h2 class="section__title">… <strong>…</strong> <em>…</em></h2>
           <p class="section__lead">…</p>                        (optional)
         </header>
         <ol class="steps">
           <li class="step" data-accent="cyan|violet|pink" data-reveal>
             <span class="step__marker" aria-hidden="true">01</span>
             <article class="card step__card">
               <p class="card__kicker">…</p>
               <h3 class="card__title">… <em>…</em></h3>
               <p class="card__text">…</p>
               then ONE of: <ul class="tag-list"><li class="tag">…</li></ul>
                            <p class="prompt"><span class="prompt__label">Örnek komut</span>
                                              <span class="prompt__text">…</span></p>
                            <ul class="card__list"><li>…</li></ul>
             </article>
           </li>
         </ol>
       </div>
     </section>

     CTA (the only coloured moment)
     <section class="section cta" id="cta">
       <div class="container">
         <div class="cta__panel" data-reveal>
           <p class="eyebrow">…</p>
           <h2 class="cta__title">…</h2>
           <p class="cta__text">…</p>
           <a class="btn btn--primary btn--up" href="#rehber" data-scroll> (same label/icon markup; up-arrow svg) </a>
           <p class="fair-note"><strong>Adil oyun hatırlatması:</strong> …</p>
         </div>
       </div>
     </section>
   </main>

   <footer class="site-footer">
     <div class="container">
       <p class="site-footer__wordmark" aria-hidden="true">YZ Rehber</p>
       <div class="site-footer__bar">
         <p class="site-footer__note">…</p>
         <nav class="footer-nav" aria-label="Alt menü">
           <ul class="footer-nav__list"><li><a class="footer-nav__link" href="…">…</a></li></ul>
         </nav>
         <p class="site-footer__copy">© …</p>
       </div>
     </div>
   </footer>

   BUTTONS: .btn + .btn--primary | .btn--ghost | .btn--light ; sizes .btn--sm ; .btn--up flips the arrow.
   Inside a button: .btn__label (text segment) + .btn__icon (icon chip, inline SVG, stroke-based).
   DATA HOOKS: [data-scroll] in-page smooth scroll, [data-reveal] (+ data-reveal-delay="1|2|3")
   gets ".is-visible" when it enters the viewport, [data-accent] sets the accent colour.
   FORMS (reusable): <form class="form"><div class="field"><label class="field__label">
   <input class="field__control"><p class="field__hint"></p><p class="field__error"></p></div>
   states: ".is-invalid" / ".is-valid" on .field, aria-invalid="true" on control,
   <p class="form__status" data-state="success|error" role="status">.
   DOCUMENTS (legal/text pages): <article class="doc"><header class="doc__header">
   <h1 class="doc__title"><p class="doc__meta"></header> then h2, h3, p, ul, ol, a.
   ========================================================================== */

/* ---------- Tokens ---------- */
:root {
  --bg: #0B0B1A;
  --bg-raised: #11112A;
  --surface: #14142E;
  --surface-2: #1B1B3D;
  --ink: #F8FAFC;
  --ink-soft: #D6DAEC;
  --muted: #A9AECB;
  --violet: #7C3AED;
  --violet-soft: #A78BFA;
  --violet-deep: #4C1D95;
  --cyan: #22D3EE;
  --pink: #F472B6;
  --accent: var(--cyan);
  --line: rgba(248, 250, 252, .12);
  --line-strong: rgba(248, 250, 252, .28);

  --font-body: var(--mrc-font-en, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif);
  --font-display: var(--mrc-font-en, Georgia, "Times New Roman", serif);

  --fs-body: clamp(1rem, .96rem + .2vw, 1.125rem);
  --fs-small: .875rem;
  --fs-h1: clamp(2.25rem, 1.5rem + 5.2vw, 5.5rem);
  --fs-h2: clamp(2rem, 1.4rem + 3.2vw, 3.75rem);
  --fs-h3: clamp(1.5rem, 1.25rem + 1.2vw, 2.25rem);

  --space-1: .25rem;
  --space-2: .5rem;
  --space-3: .75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2.5rem;
  --space-7: 4rem;
  --space-8: 6rem;

  --radius-card: 2px;
  --radius-pill: 999px;
  --header-h: 4.25rem;
  --container: 72rem;
  --ease: cubic-bezier(.22, .61, .36, 1);
  --shadow-elev: 0 40px 90px -30px rgba(124, 58, 237, .6), 0 18px 40px -24px rgba(0, 0, 0, .8);
}

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

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-padding-top: calc(var(--header-h) + .5rem);
}

@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  margin: 0;
  min-width: 320px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  overflow-x: hidden;
  overflow-x: clip;
  -webkit-font-smoothing: antialiased;
}

img, svg, video { display: block; max-width: 100%; }
img { height: auto; }

h1, h2, h3, h4 {
  margin: 0;
  font-family: var(--font-display);
  line-height: 1.1;
  letter-spacing: -.02em;
  text-wrap: balance;
}
p { margin: 0 0 var(--space-4); }
ul, ol { margin: 0; padding: 0; }
a { color: var(--cyan); text-underline-offset: .22em; }
a:hover { color: var(--ink); }
em { font-style: italic; }
[hidden] { display: none !important; }
::selection { background: var(--pink); color: var(--bg); }

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

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.25rem, 5vw, 2rem);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  margin: -1px; padding: 0; border: 0;
  overflow: hidden;
  clip: rect(0 0 0 0);
  clip-path: inset(50%);
  white-space: nowrap;
}

.skip-link {
  position: fixed;
  top: .75rem; left: .75rem;
  z-index: 100;
  padding: .75rem 1.25rem;
  background: var(--ink);
  color: var(--bg);
  font-weight: 700;
  text-decoration: none;
  border-radius: var(--radius-pill);
  transform: translateY(-200%);
  transition: transform .25s var(--ease);
}
.skip-link:focus { transform: none; color: var(--bg); }

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: .75rem;
  margin: 0;
  color: var(--cyan);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.eyebrow::before {
  content: "";
  width: 2rem; height: 1px;
  background: currentColor;
}

/* ---------- Header / navigation ---------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  display: flex;
  align-items: center;
  height: var(--header-h);
  border-bottom: 1px solid transparent;
  transition: background-color .4s var(--ease), border-color .4s var(--ease);
}
.site-header.is-scrolled,
body.nav-open .site-header {
  background: rgba(11, 11, 26, .86);
  -webkit-backdrop-filter: blur(14px) saturate(140%);
  backdrop-filter: blur(14px) saturate(140%);
  border-bottom-color: var(--line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: .65rem;
  min-height: 44px;
  color: var(--ink);
  font-family: var(--font-display);
  font-size: 1.125rem;
  font-weight: 700;
  letter-spacing: -.01em;
  text-decoration: none;
}
.brand:hover { color: var(--ink); }
.brand__mark {
  width: .9rem; height: .9rem;
  background: linear-gradient(135deg, var(--violet), var(--cyan));
  transform: rotate(45deg);
  box-shadow: 0 0 14px rgba(34, 211, 238, .55);
}

/* No-JS: compact inline nav. With .js: collapsible panel on mobile. */
.site-nav__list {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  margin: 0;
  list-style: none;
}
.site-nav__link {
  position: relative;
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink-soft);
  font-size: .95rem;
  font-weight: 600;
  text-decoration: none;
}
.site-nav__link::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: .55rem;
  height: 1px;
  background: var(--cyan);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform .35s var(--ease);
}
.site-nav__link:hover,
.site-nav__link.is-active,
.site-nav__link[aria-current="true"] { color: var(--ink); }
.site-nav__link:hover::after,
.site-nav__link.is-active::after,
.site-nav__link[aria-current="true"]::after { transform: scaleX(1); }

.nav-toggle {
  display: none;
  position: relative;
  width: 44px; height: 44px;
  padding: 0;
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  cursor: pointer;
  transition: border-color .3s var(--ease), background-color .3s var(--ease);
}
.nav-toggle:hover { border-color: var(--cyan); }
.nav-toggle[aria-expanded="true"] { background: var(--surface-2); border-color: var(--cyan); }
.nav-toggle__bar {
  position: absolute;
  left: 50%; top: 50%;
  width: 18px; height: 2px;
  margin-left: -9px;
  background: currentColor;
  transition: transform .35s var(--ease);
}
.nav-toggle__bar:nth-of-type(1) { transform: translateY(-4px); }
.nav-toggle__bar:nth-of-type(2) { transform: translateY(4px); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-of-type(1) { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] .nav-toggle__bar:nth-of-type(2) { transform: rotate(-45deg); }

.js .nav-toggle { display: inline-block; }
.js .site-nav {
  position: absolute;
  top: 100%;
  left: 0; right: 0;
  max-height: calc(100vh - var(--header-h));
  max-height: calc(100svh - var(--header-h));
  overflow-y: auto;
  padding: var(--space-3) clamp(1.25rem, 5vw, 2rem) var(--space-5);
  background: rgba(11, 11, 26, .97);
  border-bottom: 1px solid var(--line);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transform: translateY(-.5rem);
  transition: opacity .3s var(--ease), transform .3s var(--ease), visibility 0s linear .3s;
}
.js .site-nav.is-open {
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
  transform: none;
  transition-delay: 0s;
}
.js .site-nav__list { flex-direction: column; align-items: stretch; gap: 0; }
.js .site-nav__item { border-bottom: 1px solid var(--line); }
.js .site-nav__link { display: flex; min-height: 52px; font-size: 1.125rem; }
.js .site-nav__link::after { display: none; }
body.nav-open { overflow: hidden; }

/* ---------- Buttons: split label + icon chip, fully rounded ---------- */
.btn {
  --btn-bg: var(--violet);
  --btn-fg: #fff;
  --chip-bg: var(--cyan);
  --chip-fg: var(--bg);
  --nudge: 2px;
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: .25rem;
  min-height: 48px;
  padding: 4px;
  background: var(--btn-bg);
  color: var(--btn-fg);
  font: inherit;
  font-size: .95rem;
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: .01em;
  text-decoration: none;
  border: 0;
  border-radius: var(--radius-pill);
  cursor: pointer;
  overflow: hidden;
  isolation: isolate;
  -webkit-tap-highlight-color: transparent;
  transition: box-shadow .4s var(--ease), background-color .3s var(--ease), transform .3s var(--ease);
}
.btn__label {
  display: inline-flex;
  align-items: center;
  min-height: 40px;
  padding: 0 .9rem 0 1.25rem;
}
.btn__icon {
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 40px; height: 40px;
  background: var(--chip-bg);
  color: var(--chip-fg);
  border-radius: 50%;
  transition: background-color .3s var(--ease);
}
.btn__icon svg {
  width: 20px; height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 2.2;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: translate .3s var(--ease);
}
.btn--up { --nudge: -2px; }
.btn--up .btn__icon svg { rotate: 180deg; }

/* One slow sheen that crosses on hover/focus */
.btn::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0; left: 0;
  width: 55%;
  background: linear-gradient(100deg, transparent 0%, rgba(255, 255, 255, .38) 50%, transparent 100%);
  transform: translateX(-170%) skewX(-20deg);
  pointer-events: none;
}
.btn:hover::after,
.btn:focus-visible::after {
  transform: translateX(340%) skewX(-20deg);
  transition: transform 1.2s var(--ease);
}
.btn:hover,
.btn:focus-visible {
  color: var(--btn-fg);
  box-shadow: 0 12px 34px -8px rgba(124, 58, 237, .8), 0 0 0 1px rgba(255, 255, 255, .12);
}
.btn:hover .btn__icon,
.btn:focus-visible .btn__icon { background: var(--pink); }
.btn:hover .btn__icon svg,
.btn:focus-visible .btn__icon svg { translate: 0 var(--nudge); }
.btn:active { transform: scale(.98); --btn-bg: #6D28D9; }
.btn:focus-visible { outline: 3px solid var(--ink); outline-offset: 3px; }

.btn--ghost {
  --btn-bg: transparent;
  --btn-fg: var(--ink);
  --chip-bg: var(--violet);
  --chip-fg: #fff;
  box-shadow: inset 0 0 0 1px var(--line-strong);
}
.btn--ghost:active { --btn-bg: rgba(248, 250, 252, .08); }

.btn--light,
.cta .btn--primary {
  --btn-bg: var(--ink);
  --btn-fg: var(--bg);
  --chip-bg: var(--pink);
  --chip-fg: var(--bg);
}
.btn--light:hover, .btn--light:focus-visible,
.cta .btn--primary:hover, .cta .btn--primary:focus-visible {
  box-shadow: 0 14px 36px -8px rgba(0, 0, 0, .6);
}
.btn--light:hover .btn__icon, .btn--light:focus-visible .btn__icon,
.cta .btn--primary:hover .btn__icon, .cta .btn--primary:focus-visible .btn__icon { background: var(--cyan); }
.btn--light:active, .cta .btn--primary:active { --btn-bg: #E2E8F0; }
.btn--light::after, .cta .btn--primary::after {
  background: linear-gradient(100deg, transparent 0%, rgba(124, 58, 237, .28) 50%, transparent 100%);
}

.btn--sm { min-height: 44px; font-size: .875rem; }
.btn--sm .btn__label { min-height: 36px; padding-left: 1rem; }
.btn--sm .btn__icon { width: 36px; height: 36px; }

/* ---------- Hero: copy anchored low over a full-bleed visual ---------- */
.hero {
  position: relative;
  display: flex;
  min-height: 100vh;
  min-height: 100svh;
  padding-top: calc(var(--header-h) + 1rem);
  padding-bottom: clamp(2.5rem, 8vw, 5rem);
  background-color: var(--bg);
  background-image:
    linear-gradient(180deg, rgba(11, 11, 26, .5) 0%, rgba(11, 11, 26, .1) 30%, rgba(11, 11, 26, .62) 62%, var(--bg) 100%),
    url("../img/bg-mobile.jpg");
  background-size: cover;
  background-position: center top;
  background-repeat: no-repeat;
  isolation: isolate;
  overflow: hidden;
}
.hero__inner {
  flex: 1;
  display: grid;
  grid-template-columns: minmax(0, 1fr);
  grid-template-rows: 1fr auto;
  align-items: end;
  gap: var(--space-5);
}
.hero__figure {
  position: relative;
  align-self: center;
  justify-self: center;
  width: min(64vw, 20rem);
  width: min(64vw, 34svh, 20rem);
  margin: 0;
}
.hero__figure::before {
  content: "";
  position: absolute;
  inset: -18%;
  z-index: -1;
  background: radial-gradient(circle, rgba(124, 58, 237, .5), rgba(34, 211, 238, .12) 50%, transparent 68%);
  filter: blur(18px);
}
.hero__graphic {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  -webkit-mask-image: radial-gradient(closest-side, #000 58%, transparent 100%);
  mask-image: radial-gradient(closest-side, #000 58%, transparent 100%);
}
.hero__content { max-width: 40rem; }
.hero__title {
  margin-top: var(--space-4);
  font-size: var(--fs-h1);
  font-weight: 700;
  line-height: 1.03;
  letter-spacing: -.03em;
}
.hero__title em {
  font-weight: 300;
  color: var(--cyan);
  background: linear-gradient(95deg, var(--cyan), var(--pink));
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
}
.hero__title strong { font-weight: 800; }
.hero__lead {
  max-width: 34rem;
  margin: var(--space-5) 0 0;
  color: var(--ink-soft);
  font-size: clamp(1.05rem, 1rem + .4vw, 1.25rem);
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-4);
  margin-top: var(--space-6);
}

/* ---------- Sections ---------- */
.section {
  position: relative;
  padding-block: clamp(4rem, 3rem + 8vw, 8rem);
}
.section__head {
  max-width: 42rem;
  margin-bottom: clamp(2.5rem, 6vw, 4.5rem);
}
.section__title {
  margin-top: var(--space-3);
  font-size: var(--fs-h2);
  font-weight: 300;
  line-height: 1.08;
}
.section__title strong { font-weight: 800; }
.section__title em { color: var(--violet-soft); }
.section__lead {
  max-width: 36rem;
  margin: var(--space-4) 0 0;
  color: var(--muted);
}

/* ---------- Timeline / steps ---------- */
.steps {
  --marker: 2.75rem;
  --gap: 1.5rem;
  display: grid;
  margin: 0;
  list-style: none;
}
.step {
  position: relative;
  display: grid;
  grid-template-columns: var(--marker) minmax(0, 1fr);
  column-gap: 1rem;
  padding-bottom: var(--gap);
}
.step:last-child { padding-bottom: 0; }
.step::before {
  content: "";
  position: absolute;
  left: calc(var(--marker) / 2 - .5px);
  top: var(--marker);
  bottom: 0;
  width: 1px;
  background: linear-gradient(180deg, var(--accent), var(--line-strong));
}
.step:last-child::before { display: none; }
.step__marker {
  display: grid;
  place-items: center;
  width: var(--marker);
  height: var(--marker);
  background: var(--bg);
  color: var(--accent);
  font-size: .85rem;
  font-weight: 700;
  letter-spacing: .06em;
  font-variant-numeric: tabular-nums;
  border: 1px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px var(--bg), 0 0 22px -2px var(--accent);
}

[data-accent="cyan"]   { --accent: var(--cyan); }
[data-accent="violet"] { --accent: var(--violet-soft); }
[data-accent="pink"]   { --accent: var(--pink); }

/* ---------- Cards (sharp-edged) ---------- */
.card {
  position: relative;
  min-width: 0;
  padding: clamp(1.25rem, 1rem + 1.5vw, 2.25rem);
  background: linear-gradient(160deg, var(--surface-2), var(--surface) 55%);
  border: 1px solid var(--line);
  border-top: 2px solid var(--accent);
  border-radius: var(--radius-card);
  transition: border-color .4s var(--ease), box-shadow .4s var(--ease);
}
.card:hover {
  border-color: var(--line-strong);
  border-top-color: var(--accent);
  box-shadow: 0 24px 60px -34px var(--accent);
}
.card--elevated { box-shadow: var(--shadow-elev); }
.card__kicker {
  margin: 0 0 var(--space-3);
  color: var(--accent);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.card__title {
  margin-bottom: var(--space-4);
  font-size: var(--fs-h3);
  font-weight: 800;
  line-height: 1.12;
}
.card__title em { font-weight: 300; }
.card__text {
  max-width: 38rem;
  margin: 0 0 var(--space-5);
  color: var(--ink-soft);
}
.card > :last-child { margin-bottom: 0; }

.tag-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  margin: 0 0 var(--space-5);
  list-style: none;
}
.tag {
  padding: .3rem .85rem;
  color: var(--ink);
  font-size: .8125rem;
  font-weight: 600;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-pill);
}

.prompt {
  margin: 0 0 var(--space-5);
  padding: var(--space-4);
  background: rgba(34, 211, 238, .06);
  border-left: 2px solid var(--accent);
}
.prompt__label {
  display: block;
  margin-bottom: var(--space-2);
  color: var(--accent);
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .16em;
  text-transform: uppercase;
}
.prompt__text {
  display: block;
  color: var(--ink);
  font-style: italic;
  overflow-wrap: anywhere;
}
.prompt__text::before { content: "› "; color: var(--accent); font-style: normal; font-weight: 700; }

.card__list {
  display: grid;
  gap: var(--space-3);
  margin: 0 0 var(--space-5);
  list-style: none;
}
.card__list li {
  position: relative;
  padding-left: 1.5rem;
  color: var(--ink-soft);
}
.card__list li::before {
  content: "";
  position: absolute;
  left: 0; top: .6em;
  width: .5rem; height: .5rem;
  background: var(--accent);
}

/* ---------- CTA: the single colour moment ---------- */
.cta { padding-block: clamp(3.5rem, 8vw, 7rem); }
.cta__panel {
  position: relative;
  max-width: 56rem;
  margin-inline: auto;
  padding: clamp(1.75rem, 1rem + 4vw, 4rem);
  color: var(--ink);
  background:
    radial-gradient(120% 140% at 100% 0%, rgba(244, 114, 182, .4), transparent 55%),
    radial-gradient(110% 120% at 0% 100%, rgba(34, 211, 238, .2), transparent 55%),
    linear-gradient(135deg, #3B1380, #5B21B6 55%, #4C1D95);
  border: 1px solid rgba(248, 250, 252, .2);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-elev);
  overflow: hidden;
  isolation: isolate;
}
.cta__panel .eyebrow { color: var(--ink); }
.cta__panel :focus-visible { outline-color: var(--ink); }
.cta__title {
  max-width: 34rem;
  margin: var(--space-4) 0;
  font-size: clamp(2rem, 1.3rem + 3.6vw, 4rem);
  font-weight: 300;
  line-height: 1.05;
}
.cta__title strong { font-weight: 800; }
.cta__text {
  max-width: 34rem;
  margin: 0 0 var(--space-6);
  color: rgba(248, 250, 252, .94);
}
.fair-note {
  position: relative;
  margin: var(--space-6) 0 0;
  padding: var(--space-4) 0 0 1.5rem;
  color: rgba(248, 250, 252, .92);
  font-size: var(--fs-small);
  line-height: 1.6;
  border-top: 1px solid rgba(248, 250, 252, .28);
}
.fair-note::before {
  content: "";
  position: absolute;
  left: 0; top: calc(var(--space-4) + .5em);
  width: .55rem; height: .55rem;
  background: var(--pink);
}
.fair-note strong { color: #fff; font-weight: 700; }

/* ---------- Footer: editorial ---------- */
.site-footer {
  padding-top: clamp(3rem, 8vw, 6rem);
  border-top: 1px solid var(--line);
  overflow: hidden;
}
.site-footer__wordmark {
  margin: 0;
  max-width: 100%;
  font-family: var(--font-display);
  font-size: clamp(3rem, 15vw, 11rem);
  font-weight: 800;
  line-height: .9;
  letter-spacing: -.045em;
  overflow-wrap: anywhere;
  color: rgba(248, 250, 252, .2);
  background: linear-gradient(180deg, rgba(248, 250, 252, .85), rgba(248, 250, 252, .04) 95%);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  user-select: none;
}
.site-footer__bar {
  display: grid;
  gap: var(--space-4);
  margin-top: clamp(1.5rem, 4vw, 3rem);
  padding-block: var(--space-5);
  color: var(--muted);
  font-size: var(--fs-small);
  border-top: 1px solid var(--line);
}
.site-footer__bar p { margin: 0; }
.footer-nav__list {
  display: flex;
  flex-wrap: wrap;
  gap: .25rem var(--space-5);
  list-style: none;
}
.footer-nav__link {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  color: var(--ink-soft);
  text-decoration: none;
  border-bottom: 1px solid transparent;
  transition: color .3s var(--ease), border-color .3s var(--ease);
}
.footer-nav__link:hover { color: var(--ink); border-bottom-color: var(--cyan); }

/* ---------- Forms (reusable) ---------- */
.form { display: grid; gap: var(--space-5); }
.field { display: grid; gap: var(--space-2); }
.field__label { font-size: var(--fs-small); font-weight: 700; letter-spacing: .02em; }
.field__control {
  width: 100%;
  min-height: 48px;
  padding: .7rem 1rem;
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  font-size: 1rem;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-card);
  transition: border-color .3s var(--ease), box-shadow .3s var(--ease);
}
textarea.field__control { min-height: 8rem; resize: vertical; }
.field__control::placeholder { color: var(--muted); }
.field__control:hover { border-color: var(--violet-soft); }
.field__control:focus-visible { outline: 3px solid var(--cyan); outline-offset: 2px; border-color: var(--cyan); }
.field__hint { margin: 0; color: var(--muted); font-size: .8125rem; }
.field__error { display: none; margin: 0; color: #FDA4AF; font-size: .8125rem; font-weight: 600; }
.field.is-invalid .field__control,
.field__control[aria-invalid="true"] { border-color: #FB7185; box-shadow: 0 0 0 3px rgba(251, 113, 133, .2); }
.field.is-invalid .field__error { display: block; }
.field.is-valid .field__control { border-color: var(--cyan); }
.field__control:disabled { opacity: .55; cursor: not-allowed; }
.form__status {
  display: none;
  margin: 0;
  padding: var(--space-3) var(--space-4);
  font-weight: 600;
  border-left: 3px solid var(--cyan);
  background: rgba(34, 211, 238, .08);
}
.form__status[data-state="success"], .form__status[data-state="error"] { display: block; }
.form__status[data-state="error"] { border-left-color: #FB7185; background: rgba(251, 113, 133, .1); }

/* ---------- Content documents (legal / text pages) ---------- */
.doc {
  max-width: 46rem;
  margin-inline: auto;
  padding: calc(var(--header-h) + clamp(2.5rem, 6vw, 4.5rem)) clamp(1.25rem, 5vw, 2rem) clamp(3rem, 8vw, 6rem);
}
.doc__header { margin-bottom: var(--space-6); padding-bottom: var(--space-5); border-bottom: 1px solid var(--line); }
.doc__title { font-size: var(--fs-h2); font-weight: 800; }
.doc__meta { margin: var(--space-3) 0 0; color: var(--muted); font-size: var(--fs-small); }
.doc h2 { margin: var(--space-6) 0 var(--space-3); font-size: var(--fs-h3); font-weight: 700; }
.doc h3 { margin: var(--space-5) 0 var(--space-2); font-size: 1.25rem; font-weight: 700; }
.doc p, .doc li { color: var(--ink-soft); }
.doc ul, .doc ol { margin: 0 0 var(--space-4); padding-left: 1.4rem; }
.doc li { margin-bottom: var(--space-2); }
.doc li::marker { color: var(--cyan); }

/* ---------- Scroll reveal: soft fade + rise only ---------- */
.js [data-reveal] {
  opacity: 0;
  transform: translate3d(0, 1.5rem, 0);
  transition: opacity .9s var(--ease), transform .9s var(--ease);
  transition-delay: var(--reveal-delay, 0ms);
}
.js [data-reveal].is-visible { opacity: 1; transform: none; }
[data-reveal-delay="1"] { --reveal-delay: 120ms; }
[data-reveal-delay="2"] { --reveal-delay: 240ms; }
[data-reveal-delay="3"] { --reveal-delay: 360ms; }

/* ---------- Breakpoint: 360px ---------- */
@media (min-width: 360px) {
  .steps { --marker: 3rem; }
  .step { column-gap: 1.25rem; }
  .btn { font-size: 1rem; }
  .hero__figure { width: min(66vw, 34svh, 21rem); }
}

/* ---------- Breakpoint: 768px ---------- */
@media (min-width: 768px) {
  :root { --header-h: 4.75rem; }

  /* Desktop nav: always visible, toggle hidden */
  .js .nav-toggle { display: none; }
  .js .site-nav {
    position: static;
    max-height: none;
    padding: 0;
    overflow: visible;
    background: none;
    border: 0;
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: none;
    transition: none;
  }
  .js .site-nav__list { flex-direction: row; align-items: center; gap: var(--space-5); }
  .js .site-nav__item { border: 0; }
  .js .site-nav__link { display: inline-flex; min-height: 44px; font-size: .95rem; }
  .js .site-nav__link::after { display: block; }
  body.nav-open { overflow: visible; }

  .hero {
    background-image:
      linear-gradient(90deg, rgba(11, 11, 26, .78) 0%, rgba(11, 11, 26, .25) 55%, transparent 100%),
      linear-gradient(180deg, rgba(11, 11, 26, .3) 0%, rgba(11, 11, 26, .05) 30%, rgba(11, 11, 26, .55) 68%, var(--bg) 100%),
      url("../img/bg-desktop.jpg");
    background-position: center;
  }
  .hero__inner {
    grid-template-columns: minmax(0, 1.15fr) minmax(0, .85fr);
    column-gap: var(--space-6);
  }
  .hero__figure {
    grid-column: 2;
    grid-row: 1 / span 2;
    justify-self: end;
    width: min(40vw, 32rem);
    width: min(40vw, 60svh, 32rem);
  }
  .hero__content { grid-column: 1; grid-row: 2; }

  .steps { --marker: 3.5rem; --gap: 2rem; }
  .step { column-gap: 2rem; }

  .site-footer__bar {
    grid-template-columns: 1.3fr auto auto;
    align-items: center;
    gap: var(--space-5);
  }
  .cta__panel { padding-right: clamp(3rem, 12vw, 7rem); }
}

/* ---------- Breakpoint: 1200px ---------- */
@media (min-width: 1200px) {
  .steps { --marker: 4rem; --gap: 2.75rem; }
  .step { column-gap: 3rem; }

  /* Showcase row: copy left, example/list right */
  .step__card {
    display: grid;
    grid-template-columns: minmax(0, 1.1fr) minmax(0, .9fr);
    column-gap: clamp(2rem, 4vw, 4rem);
    align-items: start;
    padding: 2.75rem;
  }
  .step__card > .card__kicker,
  .step__card > .card__title,
  .step__card > .card__text,
  .step__card > .tag-list { grid-column: 1; }
  .step__card > .prompt,
  .step__card > .card__list {
    grid-column: 2;
    grid-row: 1 / span 4;
    align-self: center;
    margin: 0;
  }
  .step__card > .prompt { padding: var(--space-5); }
  .step__card > .card__title { max-width: 22rem; }
  .step__card > .card__text:last-child { margin-bottom: 0; }

  .hero__content { max-width: 46rem; }
}

/* ---------- Reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    transition-delay: 0ms !important;
  }
  .js [data-reveal] { opacity: 1; transform: none; }
  .btn::after { display: none; }
}