/* Pulso Studios - site styles
   Brand: black / white, Alte Haas Grotesk, sharp corners (radius 0 everywhere).
   z-index scale: 1 content overlays · 50 nav · 100 skip link */

@font-face {
  font-family: 'AlteHaasGrotesk';
  src: url('../fonts/AlteHaasGrotesk-Regular.woff2') format('woff2');
  font-weight: 400;
  font-style: normal;
  font-display: swap;
}
@font-face {
  font-family: 'AlteHaasGrotesk';
  src: url('../fonts/AlteHaasGrotesk-Bold.woff2') format('woff2');
  font-weight: 700;
  font-style: normal;
  font-display: swap;
}

/* ── TOKENS ── */
:root {
  --c-ink: #000000;
  --c-paper: #ffffff;
  --bg: var(--c-paper);
  --fg: var(--c-ink);
  --font: 'AlteHaasGrotesk', 'Helvetica Neue', Helvetica, Arial, sans-serif;
  --gutter: clamp(1.25rem, 4vw, 4rem);
  --section-y: clamp(6rem, 14vw, 12rem);
  --nav-h: 4.5rem;
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  color-scheme: light dark;
}
@media (prefers-color-scheme: dark) {
  :root {
    --c-ink: #ffffff;
    --c-paper: #000000;
  }
}
.invert {
  --bg: var(--c-ink);
  --fg: var(--c-paper);
}
:root, .invert {
  --muted: #616161;
  --line: #d6d6d6;
  --muted: color-mix(in srgb, var(--fg) 64%, var(--bg));
  --line: color-mix(in srgb, var(--fg) 18%, var(--bg));
}

/* ── BASE ── */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; scroll-padding-top: var(--nav-h); }
@media (prefers-reduced-motion: no-preference) {
  html { scroll-behavior: smooth; }
}

body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  font-weight: 400;
  font-size: 1rem;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; }
button, input, textarea { font: inherit; color: inherit; }
::selection { background: var(--fg); color: var(--bg); }
:focus-visible { outline: 2px solid var(--fg); outline-offset: 4px; }

.skip-link {
  position: absolute; left: var(--gutter); top: -4rem; z-index: 100;
  background: var(--fg); color: var(--bg); padding: 0.75rem 1rem; text-decoration: none;
}
.skip-link:focus { top: 0.75rem; }

.visually-hidden { position: absolute; width: 1px; height: 1px; overflow: hidden; clip-path: inset(50%); white-space: nowrap; }

.wrap { width: 100%; max-width: 1600px; margin-inline: auto; padding-inline: var(--gutter); }

.h2 {
  font-weight: 700;
  font-size: clamp(2.25rem, 6vw, 5.5rem);
  letter-spacing: -0.045em;
  line-height: 0.95;
}

/* ── BUTTONS ── */
.btn {
  position: relative;
  display: inline-flex; align-items: center; justify-content: center;
  min-height: 3rem; padding: 0 1.6rem;
  border: 1px solid var(--fg);
  background: transparent; color: var(--fg);
  font-weight: 700; font-size: 0.9375rem; letter-spacing: -0.01em;
  text-decoration: none; white-space: nowrap; cursor: pointer;
  overflow: hidden; isolation: isolate;
  transition: color 0.45s var(--ease), transform 0.2s var(--ease);
}
.btn::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background: var(--fg);
  transform: scaleY(0); transform-origin: 50% 100%;
  transition: transform 0.45s var(--ease);
}
.btn:hover, .btn:focus-visible { color: var(--bg); }
.btn:hover::before, .btn:focus-visible::before { transform: scaleY(1); }
.btn:active { transform: scale(0.98); }
.btn--solid { color: var(--bg); }
.btn--solid::before { transform: scaleY(1); transform-origin: 50% 0; }
.btn--solid:hover, .btn--solid:focus-visible { color: var(--fg); }
.btn--solid:hover::before, .btn--solid:focus-visible::before { transform: scaleY(0); }

.link {
  text-decoration: none;
  background: linear-gradient(currentColor, currentColor) 0 100% / 100% 1px no-repeat;
  transition: background-size 0.45s var(--ease);
}
.link:hover { background-size: 0 1px; background-position: 100% 100%; }

/* ── NAV (white + difference blend = black on white, white on black) ── */
.nav {
  position: fixed; inset: 0 0 auto 0; z-index: 50;
  height: var(--nav-h);
  display: flex; align-items: center; justify-content: space-between; gap: 1.5rem;
  padding-inline: var(--gutter);
  color: #fff; mix-blend-mode: difference;
  font-size: 0.9375rem; letter-spacing: -0.01em;
}
.nav a, .nav span { white-space: nowrap; }
.nav-brand { font-weight: 700; font-size: 1.125rem; letter-spacing: -0.04em; text-decoration: none; }
.nav-links { display: flex; align-items: center; gap: clamp(1rem, 2.2vw, 2.25rem); list-style: none; }
.nav-links a { text-decoration: none; position: relative; padding-block: 0.4rem; }
.nav-links a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: 0; height: 1px; background: currentColor;
  transform: scaleX(0); transform-origin: 100% 50%;
  transition: transform 0.45s var(--ease);
}
.nav-links a:not(.nav-cta):hover::after,
.nav-links a[aria-current="true"]::after { transform: scaleX(1); transform-origin: 0 50%; }
.nav-lang { display: flex; gap: 0.4rem; align-items: center; }
.nav-lang a { opacity: 0.55; transition: opacity 0.3s; }
.nav-lang a:hover, .nav-lang a[aria-current="true"] { opacity: 1; }
.nav-cta { border: 1px solid currentColor; padding: 0.55rem 1rem !important; font-weight: 700; transition: background 0.3s, color 0.3s; }
.nav-cta:hover { background: #fff; color: #000; }
@media (max-width: 767px) {
  .nav-links .nav-section { display: none; }
}

/* ── HERO ── */
#hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: grid; align-content: end;
  padding: calc(var(--nav-h) + 1rem) var(--gutter) clamp(1.5rem, 3vw, 2.75rem);
  overflow: hidden;
}
.hero-mark { position: relative; }
.wordmark {
  display: block;
  font-weight: 700;
  font-size: clamp(4rem, min(20vw, 31dvh), 21rem);
  letter-spacing: -0.065em;
  line-height: 0.84;
  margin-left: -0.05em;
  user-select: none;
}
.wordmark-line { display: block; overflow: hidden; padding-bottom: 0.2em; margin-bottom: -0.2em; }
.wordmark-line > span { display: inline-block; }

.hero-row {
  display: grid; grid-template-columns: 1fr auto; align-items: end; gap: 2rem;
  margin-top: clamp(1.5rem, 3vw, 2.5rem);
  padding-top: clamp(1rem, 2vw, 1.5rem);
  border-top: 1px solid var(--fg);
}
.hero-sub {
  display: block;
  font-weight: 400;
  font-size: clamp(1.0625rem, 1.6vw, 1.5rem);
  letter-spacing: -0.02em; line-height: 1.25;
  max-width: 34ch;
}
.hero-cta { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* The brand mark (black circle). White + difference blend so it inverts the wordmark beneath it. */
.pulse {
  position: absolute; z-index: 1;
  bottom: -3%; right: 5vw;
  width: min(40vw, 64dvh); aspect-ratio: 1;
  pointer-events: none; mix-blend-mode: difference;
  transform: translate3d(var(--px, 0px), var(--py, 0px), 0);
}
.pulse-dot, .pulse-ring { position: absolute; inset: 0; border-radius: 50%; }
.pulse-dot { background: #fff; }
.pulse-ring { border: 1px solid #fff; opacity: 0; }

@media (max-width: 767px) {
  .pulse { width: 84vw; right: -24vw; bottom: 40%; }
  .hero-row { grid-template-columns: 1fr; gap: 1.25rem; }
  .wordmark { font-size: clamp(4rem, 28.5vw, 11rem); }
}

/* ── ABOUT ── */
#about { padding-block: var(--section-y); }
.about-text {
  font-size: clamp(1.625rem, 3.6vw, 3.5rem);
  letter-spacing: -0.035em; line-height: 1.12;
  max-width: 24em;
  margin-left: auto;
}
@media (min-width: 1024px) { .about-text { width: 82%; } }

/* ── MARQUEE (the only one on the page) ── */
.marquee { overflow: hidden; border-block: 1px solid var(--fg); padding-block: clamp(1rem, 2vw, 1.75rem); }
.marquee-track { display: flex; width: max-content; }
.marquee-group { display: flex; align-items: center; flex-shrink: 0; }
.marquee-group span {
  font-weight: 700; font-size: clamp(3rem, 9vw, 8.5rem);
  letter-spacing: -0.05em; line-height: 1; white-space: nowrap;
  padding-inline: 0.22em;
}
.marquee-group .outline { color: transparent; -webkit-text-stroke: 1.5px var(--fg); }
.marquee-group i { display: block; width: clamp(1.25rem, 3.6vw, 3.4rem); aspect-ratio: 1; border-radius: 50%; background: var(--fg); flex-shrink: 0; }

/* ── SERVICES ── */
#services { padding-block: var(--section-y); }
#services .h2 { margin-bottom: clamp(2.5rem, 5vw, 4.5rem); }
.services-list { list-style: none; border-bottom: 1px solid var(--fg); }
.service {
  position: relative; isolation: isolate;
  display: grid; grid-template-columns: minmax(0, 1.7fr) minmax(0, 1fr) auto; align-items: center; gap: 1.5rem 3rem;
  padding: clamp(1.5rem, 3vw, 2.75rem) 0;
  border-top: 1px solid var(--fg);
  text-decoration: none;
  transition: color 0.5s var(--ease);
}
.service::before {
  content: ""; position: absolute; inset: 0; z-index: -1; background: var(--fg);
  transform: scaleY(0); transform-origin: 50% 100%;
  transition: transform 0.5s var(--ease);
}
.service-name, .service-desc { transition: transform 0.5s var(--ease), color 0.5s var(--ease); }
.service-name { font-weight: 700; font-size: clamp(2rem, 5.2vw, 5rem); letter-spacing: -0.05em; line-height: 1; }
.service-desc { color: var(--muted); max-width: 36ch; font-size: 1.0625rem; }
.service-go { font-weight: 700; font-size: 0.9375rem; padding-right: 1.5rem; opacity: 0; transform: translateX(-0.75rem); transition: opacity 0.4s var(--ease), transform 0.5s var(--ease); white-space: nowrap; }
@media (hover: hover) {
  .service:hover { color: var(--bg); }
  .service:hover .service-name, .service:hover .service-desc { transform: translateX(1.5rem); }
  .service:hover::before { transform: scaleY(1); }
  .service:hover .service-desc { color: var(--bg); }
  .service:hover .service-go { opacity: 1; transform: none; }
}
.service:focus-visible { color: var(--bg); outline-offset: -6px; outline-color: var(--bg); }
.service:focus-visible::before { transform: scaleY(1); }
.service:focus-visible .service-desc { color: var(--bg); }
.service:focus-visible .service-name, .service:focus-visible .service-desc { transform: translateX(1.5rem); }
.service:focus-visible .service-go { opacity: 1; transform: none; }
@media (max-width: 767px) {
  .service { grid-template-columns: 1fr; gap: 0.6rem; }
  .service-go { display: none; }
}

/* ── WORK ── */
#work { padding-bottom: var(--section-y); }
#work .h2 { margin-bottom: clamp(2.5rem, 5vw, 4.5rem); }
.projects { display: grid; grid-template-columns: repeat(12, minmax(0, 1fr)); column-gap: var(--gutter); row-gap: 4rem; align-items: start; }
.project:nth-child(1) { grid-column: 1 / span 7; }
.project:nth-child(2) { grid-column: 9 / span 4; margin-top: 30%; }
.project-media { position: relative; overflow: hidden; aspect-ratio: 1 / 1; background: var(--line); }
.project-media::after { content: ""; position: absolute; inset: 0; border: 1px solid var(--line); pointer-events: none; }
.project-media-inner { width: 100%; height: 100%; transition: transform 1.1s var(--ease); }
.project-img { width: 100%; height: 100%; object-fit: cover; }
@media (hover: hover) { .project:hover .project-media-inner { transform: scale(1.04); } }
.project-info { display: grid; grid-template-columns: 1fr auto; gap: 0.25rem 1.5rem; margin-top: 1.1rem; }
.project-title { font-weight: 700; font-size: clamp(1.125rem, 1.6vw, 1.5rem); letter-spacing: -0.03em; line-height: 1.15; }
.project-artist { color: var(--muted); grid-column: 1; line-height: 1.4; }
.project-service { grid-column: 2; grid-row: 1; font-size: 0.875rem; white-space: nowrap; padding-top: 0.25em; }
@media (max-width: 767px) {
  .projects { grid-template-columns: 1fr; row-gap: 3rem; }
  .project:nth-child(1), .project:nth-child(2) { grid-column: 1; margin-top: 0; }
}

/* ── FAQ ── */
#faq { padding-bottom: var(--section-y); }
.faq-grid { display: grid; grid-template-columns: minmax(0, 5fr) minmax(0, 7fr); gap: 3rem var(--gutter); align-items: start; }
.faq-grid .h2 { position: sticky; top: calc(var(--nav-h) + 1.5rem); }
.faq-list { border-bottom: 1px solid var(--fg); }
.faq-item { border-top: 1px solid var(--fg); }
.faq-question { font-size: inherit; font-weight: inherit; }
.faq-trigger {
  width: 100%; display: grid; grid-template-columns: 1fr auto; align-items: center; gap: 1.5rem;
  padding: 1.6rem 0; background: none; border: 0; text-align: left; cursor: pointer;
  font-weight: 700; font-size: clamp(1.125rem, 1.7vw, 1.5rem); letter-spacing: -0.03em; line-height: 1.2;
}
.faq-icon { position: relative; width: 1.125rem; height: 1.125rem; flex-shrink: 0; }
.faq-icon::before, .faq-icon::after {
  content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 2px; margin-top: -1px; background: currentColor;
  transition: transform 0.5s var(--ease);
}
.faq-icon::after { transform: rotate(90deg); }
.faq-trigger[aria-expanded="true"] .faq-icon::after { transform: rotate(0deg); }
.faq-trigger[aria-expanded="true"] .faq-icon::before { transform: rotate(180deg); }
.faq-panel { display: grid; grid-template-rows: 1fr; }
.faq-panel-inner { overflow: hidden; }
.faq-answer { color: var(--muted); max-width: 58ch; padding-bottom: 1.75rem; font-size: 1.0625rem; }
.js .faq-panel { grid-template-rows: 0fr; transition: grid-template-rows 0.55s var(--ease); }
.js .faq-panel .faq-panel-inner { visibility: hidden; transition: visibility 0s 0.55s; }
.js .faq-panel.is-open { grid-template-rows: 1fr; }
.js .faq-panel.is-open .faq-panel-inner { visibility: visible; transition-delay: 0s; }
@media (max-width: 767px) {
  .faq-grid { grid-template-columns: 1fr; gap: 2rem; }
  .faq-grid .h2 { position: static; }
}

/* ── CONTACT (single deliberate theme flip: closing block) ── */
#contact { background: var(--bg); color: var(--fg); padding-block: var(--section-y) calc(var(--section-y) * 0.6); }
.contact-grid { display: grid; grid-template-columns: minmax(0, 6fr) minmax(0, 5fr); gap: 4rem var(--gutter); align-items: start; }
.contact-heading { font-size: clamp(3rem, 9vw, 9rem); letter-spacing: -0.06em; line-height: 0.88; }
.contact-alt { margin-top: clamp(1.5rem, 3vw, 2.5rem); color: var(--muted); font-size: 1.0625rem; }
.contact-alt a { color: var(--fg); white-space: nowrap; }
.contact-form { display: grid; gap: 1.75rem; }
.field { display: grid; gap: 0.5rem; }
.field label { font-weight: 700; font-size: 0.9375rem; letter-spacing: -0.01em; }
.contact-field {
  width: 100%; border: 0; border-bottom: 1px solid var(--muted); border-radius: 0;
  padding: 0.6rem 0 0.85rem; background: transparent; outline: none;
  font-size: 1.125rem; letter-spacing: -0.01em;
  transition: border-color 0.3s ease;
}
.contact-field:hover { border-bottom-color: var(--fg); }
.contact-field:focus-visible { outline: none; border-bottom-color: var(--fg); box-shadow: 0 1px 0 0 var(--fg); }
textarea.contact-field { resize: vertical; min-height: 8rem; }
.contact-submit { justify-self: start; min-width: 10rem; }
.contact-status { min-height: 1.5em; color: var(--muted); font-size: 0.9375rem; }
@media (max-width: 899px) { .contact-grid { grid-template-columns: 1fr; gap: 3rem; } }

footer { background: var(--bg); color: var(--fg); }
.footer-inner {
  border-top: 1px solid var(--line);
  padding-block: 1.75rem;
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: 0.75rem 2rem;
  font-size: 0.9375rem; color: var(--muted);
}
.footer-brand { font-weight: 700; color: var(--fg); letter-spacing: -0.03em; }

/* ── 404 ── */
.notfound { min-height: 100dvh; display: grid; align-content: center; justify-items: start; gap: 2rem; padding: var(--gutter); }

/* ══ MOTION ══ everything below is gated behind no-preference ══ */
@media (prefers-reduced-motion: no-preference) {

  /* Hero intro: letters rise out of a mask, then the row fades up (hierarchy: brand first, message second) */
  .wordmark-line > span {
    transform: translateY(115%);
    animation: rise 1.1s var(--ease) forwards;
    animation-delay: calc(0.15s + var(--i) * 0.045s);
  }
  .hero-row { opacity: 0; transform: translateY(1.5rem); animation: fade-up 1s var(--ease) 0.85s forwards; }
  .nav { opacity: 0; animation: fade-in 0.8s ease 1s forwards; }

  /* The pulse: grows in, then beats like a kick (lub-dub, rest). It is the brand name, literally. */
  .pulse-dot { transform: scale(0); animation: pop 1.3s var(--ease) 0.35s forwards, beat 2s ease-in-out 1.7s infinite; }
  .pulse-ring { animation: ring 2s ease-out 1.7s infinite; }
  .pulse { transition: transform 0.9s var(--ease); }

  @keyframes rise { to { transform: translateY(0); } }
  @keyframes fade-up { to { opacity: 1; transform: none; } }
  @keyframes fade-in { to { opacity: 1; } }
  @keyframes pop { to { transform: scale(1); } }
  @keyframes beat {
    0%, 30%, 100% { transform: scale(1); }
    7% { transform: scale(1.05); }
    14% { transform: scale(1); }
    21% { transform: scale(1.028); }
  }
  @keyframes ring {
    0% { transform: scale(1); opacity: 0; }
    7% { transform: scale(1.03); opacity: 0.9; }
    60%, 100% { transform: scale(1.32); opacity: 0; }
  }

  .marquee-track { animation: marquee 32s linear infinite; }
  @keyframes marquee { to { transform: translateX(-50%); } }

  /* Scroll reveals (JS adds .is-in through IntersectionObserver; without JS nothing is hidden) */
  .js [data-reveal] {
    opacity: 0; transform: translateY(2rem);
    transition: opacity 1s var(--ease), transform 1s var(--ease);
    transition-delay: calc(var(--d, 0) * 90ms);
  }
  .js [data-reveal].is-in { opacity: 1; transform: none; }

  .js [data-wipe] .project-media { clip-path: inset(100% 0 0 0); transition: clip-path 1.3s var(--ease); }
  .js [data-wipe] .project-media-inner { transform: scale(1.18); }
  .js [data-wipe].is-in .project-media { clip-path: inset(0 0 0 0); }
  .js [data-wipe].is-in .project-media-inner { transform: scale(1); }

  /* About: words light up as the text is read. Fallback = staggered fade once in view. */
  .js .about-text .w { opacity: 0.16; transition: opacity 0.7s ease; transition-delay: calc(var(--w) * 22ms); }
  .js .about-text.is-in .w { opacity: 1; }

  /* Progressive enhancement: tie it to the scrollbar where scroll-driven animations exist */
  @supports (animation-timeline: view()) {
    .js .about-text .w {
      transition: none; opacity: 0.16;
      animation: word-on linear both;
      animation-timeline: view();
      animation-range: entry 35% entry 110%;
    }
    @keyframes word-on { to { opacity: 1; } }

    .wordmark {
      animation: wordmark-out linear both;
      animation-timeline: scroll(root);
      animation-range: 0 90vh;
    }
    @keyframes wordmark-out { to { transform: translateY(-12%); } }
    .pulse-scroll {
      position: absolute; inset: 0;
      animation: pulse-out linear both;
      animation-timeline: scroll(root);
      animation-range: 0 100vh;
    }
    @keyframes pulse-out { to { transform: translateY(38%) scale(0.55); } }
  }
}
.pulse-scroll { position: absolute; inset: 0; }