/* =========================================================
   6174 STUDIOS — stylesheet
   Self-contained. No external fonts/requests (privacy-first).
   ========================================================= */

:root {
  --bg:        #05070f;
  --bg-2:      #080b16;
  --panel:     rgba(255, 255, 255, 0.035);
  --panel-bd:  rgba(255, 255, 255, 0.09);
  --ink:       #eaf0fb;
  --ink-dim:   #aab3c7;
  --ink-faint: #717a90;
  --blue:      #4cc4ff;
  --violet:    #9d7bff;
  --cyan:      #5ffbf1;
  --accent:    #4cc4ff;

  --maxw: 1180px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);

  --font: "Segoe UI", system-ui, -apple-system, "Inter", "Helvetica Neue", Arial, sans-serif;
}

/* ---------- reset ---------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  font-family: var(--font);
  background: var(--bg);
  color: var(--ink);
  line-height: 1.65;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* ambient cosmic backdrop behind everything */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  background:
    radial-gradient(1100px 600px at 78% -8%, rgba(123, 92, 255, 0.16), transparent 60%),
    radial-gradient(900px 600px at 12% 8%, rgba(76, 196, 255, 0.14), transparent 60%),
    radial-gradient(1200px 900px at 50% 120%, rgba(95, 251, 241, 0.08), transparent 55%),
    var(--bg);
}
/* faint star noise */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  opacity: 0.5;
  background-image:
    radial-gradient(1px 1px at 20% 30%, rgba(255,255,255,0.5), transparent),
    radial-gradient(1px 1px at 70% 65%, rgba(255,255,255,0.4), transparent),
    radial-gradient(1px 1px at 40% 80%, rgba(255,255,255,0.35), transparent),
    radial-gradient(1px 1px at 88% 22%, rgba(255,255,255,0.45), transparent),
    radial-gradient(1px 1px at 55% 12%, rgba(255,255,255,0.3), transparent);
  background-repeat: repeat;
  background-size: 600px 600px;
}

img, video { display: block; max-width: 100%; }
a { color: inherit; text-decoration: none; }

.container { width: min(var(--maxw), 92vw); margin-inline: auto; }
.mono { font-variant-numeric: tabular-nums; font-feature-settings: "tnum"; letter-spacing: 0.04em; }
.accent { color: var(--accent); }

/* ---------- chrome text treatment ---------- */
.chrome {
  background: linear-gradient(180deg, #ffffff 0%, #cfd9ec 28%, #9aa7c2 52%, #e7eefb 70%, #8895b0 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  text-shadow: 0 0 40px rgba(76, 196, 255, 0.25);
}
.chrome-soft {
  background: linear-gradient(180deg, #eef3fc 0%, #b9c5dc 60%, #8e9cb8 100%);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

/* =========================================================
   NAV
   ========================================================= */
.nav {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 100;
  transition: background 0.4s var(--ease), backdrop-filter 0.4s var(--ease), border-color 0.4s var(--ease);
  border-bottom: 1px solid transparent;
}
.nav.is-stuck {
  background: rgba(6, 9, 18, 0.72);
  backdrop-filter: blur(14px) saturate(1.2);
  -webkit-backdrop-filter: blur(14px) saturate(1.2);
  border-bottom-color: var(--panel-bd);
}
/* keep nav text legible over the full-colour video (only while transparent) */
.nav:not(.is-stuck) .nav__brand,
.nav:not(.is-stuck) .nav__links a { text-shadow: 0 1px 12px rgba(0, 0, 0, 0.55); }
.nav__inner {
  width: min(var(--maxw), 92vw);
  margin-inline: auto;
  height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.nav__brand { display: flex; align-items: baseline; gap: 8px; }
.nav__mark {
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.06em;
  background: linear-gradient(180deg, #fff, #aeb9d2);
  -webkit-background-clip: text; background-clip: text; color: transparent;
}
.nav__sub { font-size: 0.62rem; letter-spacing: 0.42em; color: var(--ink-dim); font-weight: 600; }

.nav__links { display: flex; align-items: center; gap: 34px; }
.nav__links a {
  font-size: 0.82rem;
  letter-spacing: 0.08em;
  color: var(--ink-dim);
  font-weight: 500;
  transition: color 0.25s var(--ease);
  position: relative;
}
.nav__links a:not(.nav__cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 1px; width: 0;
  background: linear-gradient(90deg, var(--blue), var(--violet));
  transition: width 0.3s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:not(.nav__cta):hover::after { width: 100%; }
.nav__cta {
  padding: 9px 18px;
  border: 1px solid var(--panel-bd);
  border-radius: 999px;
  background: rgba(255,255,255,0.03);
}
.nav__cta:hover { border-color: var(--blue); box-shadow: 0 0 24px rgba(76,196,255,0.25); }

.nav__toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav__toggle span { width: 24px; height: 2px; background: var(--ink); border-radius: 2px; transition: 0.3s var(--ease); }
.nav__toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* =========================================================
   HERO
   ========================================================= */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;   /* sit the content in the lower area, clear of the video's title */
  align-items: center;
  text-align: center;
  overflow: hidden;
  isolation: isolate;
  padding-bottom: 16vh;
}
.hero__video-wrap { position: absolute; inset: 0; z-index: -1; }
.hero__video {
  width: 100%; height: 100%;
  object-fit: cover;
  transform: scale(1.04);
}
.hero__scrim {
  position: absolute; inset: 0;
  /* Keep the video full colour — only fade the lower area for text legibility
     and a clean hand-off into the page below. */
  background: linear-gradient(180deg,
    rgba(5, 7, 15, 0) 0%,
    rgba(5, 7, 15, 0) 56%,
    rgba(5, 7, 15, 0.45) 80%,
    var(--bg) 100%);
}

.hero__content { position: relative; z-index: 2; padding: 0 6vw; max-width: 980px; }
/* screen-reader-only (keeps a semantic <h1> without showing text over the video) */
.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}
.hero__tagline {
  font-size: clamp(1.05rem, 2.2vw, 1.4rem);
  color: var(--ink-dim);
  margin: 26px auto 38px;
  max-width: 620px;
  font-weight: 400;
  text-shadow: 0 2px 20px rgba(0, 0, 0, 0.6), 0 1px 4px rgba(0, 0, 0, 0.5);
}
.hero__tagline strong { color: var(--ink); font-weight: 600; }
.hero__actions { display: flex; gap: 16px; justify-content: center; flex-wrap: wrap; }

.hero__scroll {
  position: absolute; bottom: 30px; left: 50%; transform: translateX(-50%);
  z-index: 2; display: grid; place-items: center; gap: 10px;
}
.hero__scroll-dot {
  width: 24px; height: 40px; border: 1.5px solid rgba(255,255,255,0.3); border-radius: 999px; position: relative;
}
.hero__scroll-dot::after {
  content: ""; position: absolute; top: 7px; left: 50%; transform: translateX(-50%);
  width: 4px; height: 8px; border-radius: 4px; background: var(--blue);
  animation: scrolldot 1.8s var(--ease) infinite;
}
.hero__scroll-label { font-size: 0.6rem; letter-spacing: 0.3em; color: var(--ink-faint); }
@keyframes scrolldot { 0% { opacity: 0; transform: translate(-50%, 0); } 40% { opacity: 1; } 80% { opacity: 0; transform: translate(-50%, 14px); } 100% { opacity: 0; } }

/* =========================================================
   BUTTONS
   ========================================================= */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 14px 28px;
  border-radius: 999px;
  font-weight: 600; font-size: 0.92rem; letter-spacing: 0.02em;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.25s var(--ease), box-shadow 0.3s var(--ease), background 0.3s var(--ease), border-color 0.3s var(--ease);
  will-change: transform;
}
.btn--lg { padding: 17px 38px; font-size: 1rem; }
.btn--primary {
  color: #04121f;
  background: linear-gradient(135deg, #7fe2ff 0%, #4cc4ff 45%, #9d7bff 100%);
  box-shadow: 0 8px 30px rgba(76,196,255,0.28), inset 0 0 0 1px rgba(255,255,255,0.25);
}
.btn--primary:hover { transform: translateY(-2px); box-shadow: 0 14px 40px rgba(76,196,255,0.45); }
.btn--ghost {
  color: var(--ink);
  border-color: var(--panel-bd);
  background: rgba(255,255,255,0.03);
  backdrop-filter: blur(6px);
}
.btn--ghost:hover { border-color: var(--blue); transform: translateY(-2px); box-shadow: 0 0 30px rgba(76,196,255,0.2); }

/* =========================================================
   SECTIONS (shared)
   ========================================================= */
.section { padding: clamp(90px, 13vh, 160px) 0; position: relative; }
.kicker {
  font-size: 0.72rem; letter-spacing: 0.32em; color: var(--blue);
  font-weight: 700; margin-bottom: 18px;
}
.section h2 {
  font-size: clamp(1.9rem, 4.6vw, 3.4rem);
  line-height: 1.08; font-weight: 800; letter-spacing: -0.01em;
}
.section__head { max-width: 760px; margin-bottom: 56px; }

/* ---------- studio ---------- */
.studio__grid { display: grid; grid-template-columns: 0.85fr 1.15fr; gap: clamp(30px, 6vw, 90px); align-items: start; }
.studio__lead h2 { font-size: clamp(1.8rem, 4vw, 3rem); }
.studio__body p { color: var(--ink-dim); font-size: 1.06rem; margin-bottom: 22px; }
.studio__body p:last-of-type { margin-bottom: 0; }
.studio__stats {
  display: flex; gap: 38px; flex-wrap: wrap; margin-top: 40px;
  padding-top: 34px; border-top: 1px solid var(--panel-bd);
}
.stat { display: flex; flex-direction: column; }
.stat__num {
  font-size: clamp(2rem, 4.5vw, 3rem); font-weight: 800; line-height: 1;
  background: linear-gradient(180deg, #fff, var(--blue));
  -webkit-background-clip: text; background-clip: text; color: transparent;
  display: inline;
}
.stat__label { font-size: 0.78rem; letter-spacing: 0.06em; color: var(--ink-faint); margin-top: 10px; text-transform: uppercase; }

/* =========================================================
   WORK / CARDS
   ========================================================= */
.filter { display: inline-flex; gap: 6px; margin-top: 30px; padding: 5px; border: 1px solid var(--panel-bd); border-radius: 999px; background: rgba(255,255,255,0.02); }
.filter__btn {
  border: 0; background: none; cursor: pointer;
  color: var(--ink-dim); font-weight: 600; font-size: 0.82rem; letter-spacing: 0.03em;
  padding: 9px 18px; border-radius: 999px; transition: 0.3s var(--ease);
}
.filter__btn:hover { color: var(--ink); }
.filter__btn.is-active {
  color: #04121f;
  background: linear-gradient(135deg, #7fe2ff, #9d7bff);
  box-shadow: 0 4px 18px rgba(76,196,255,0.3);
}

.cards { display: grid; grid-template-columns: repeat(3, 1fr); gap: 22px; }
.card {
  position: relative;
  border: 1px solid var(--panel-bd);
  border-radius: 18px;
  background: linear-gradient(180deg, rgba(255,255,255,0.045), rgba(255,255,255,0.012));
  padding: 26px 26px 28px;
  overflow: hidden;
  transition: transform 0.45s var(--ease), border-color 0.45s var(--ease), box-shadow 0.45s var(--ease);
  isolation: isolate;
  min-height: 320px;
  display: flex; flex-direction: column;
}
.card__glow {
  position: absolute; inset: -1px; z-index: -1; opacity: 0; transition: opacity 0.45s var(--ease);
  background: radial-gradient(420px 180px at var(--mx, 50%) 0%, color-mix(in srgb, var(--accent) 32%, transparent), transparent 70%);
}
.card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent) 55%, transparent);
  box-shadow: 0 22px 60px rgba(0,0,0,0.5), 0 0 0 1px color-mix(in srgb, var(--accent) 22%, transparent);
}
.card:hover .card__glow { opacity: 1; }
.card__top { display: flex; align-items: center; justify-content: space-between; margin-bottom: 18px; gap: 12px; }
.card__tag {
  font-size: 0.64rem; letter-spacing: 0.16em; font-weight: 700;
  color: var(--accent);
  padding: 5px 10px; border-radius: 6px;
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 28%, transparent);
  white-space: nowrap;
}
.card__status {
  font-size: 0.66rem; letter-spacing: 0.08em; color: var(--ink-faint);
  display: inline-flex; align-items: center; gap: 6px; white-space: nowrap;
}
.card__status::before { content: ""; width: 6px; height: 6px; border-radius: 50%; background: var(--accent); box-shadow: 0 0 10px var(--accent); }
.card__title { font-size: 1.42rem; font-weight: 700; letter-spacing: -0.01em; margin-bottom: 6px; }
.card__tagline { color: var(--accent); font-size: 0.92rem; font-weight: 500; margin-bottom: 14px; }
.card__desc { color: var(--ink-dim); font-size: 0.94rem; line-height: 1.6; flex: 1; }
.card__chips { list-style: none; display: flex; flex-wrap: wrap; gap: 7px; margin-top: 20px; }
.card__chips li {
  font-size: 0.7rem; letter-spacing: 0.02em; color: var(--ink-dim);
  padding: 5px 11px; border-radius: 999px;
  background: rgba(255,255,255,0.04); border: 1px solid var(--panel-bd);
}
.card.is-hidden { display: none; }

/* clickable project card (links to its own page) */
.card--link { cursor: pointer; }
.card--link .card__chips { margin-bottom: 18px; }
.card__cta {
  margin-top: auto;
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.84rem; font-weight: 700; letter-spacing: 0.02em;
  color: var(--accent);
}
.card__cta span { transition: transform 0.25s var(--ease); }
.card--link:hover .card__cta span { transform: translateX(5px); }
.card--link::after {
  content: ""; position: absolute; inset: 0; border-radius: 18px;
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--accent) 30%, transparent);
  opacity: 0; transition: opacity 0.4s var(--ease); pointer-events: none;
}
.card--link:hover::after { opacity: 1; }

/* =========================================================
   CAPABILITIES
   ========================================================= */
.caps__grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; }
.cap {
  border: 1px solid var(--panel-bd); border-radius: 16px; padding: 30px 26px;
  background: linear-gradient(180deg, rgba(255,255,255,0.04), rgba(255,255,255,0.01));
  transition: transform 0.4s var(--ease), border-color 0.4s var(--ease);
}
.cap:hover { transform: translateY(-5px); border-color: rgba(76,196,255,0.4); }
.cap__icon {
  font-size: 1.6rem; color: var(--blue); margin-bottom: 18px;
  width: 52px; height: 52px; display: grid; place-items: center; border-radius: 12px;
  background: rgba(76,196,255,0.08); border: 1px solid rgba(76,196,255,0.2);
  text-shadow: 0 0 18px rgba(76,196,255,0.6);
}
.cap h3 { font-size: 1.1rem; margin-bottom: 10px; font-weight: 700; }
.cap p { color: var(--ink-dim); font-size: 0.9rem; }

/* =========================================================
   CONTACT
   ========================================================= */
.contact__panel {
  position: relative; overflow: hidden;
  text-align: center; border-radius: 26px;
  padding: clamp(50px, 8vw, 90px) 6vw;
  border: 1px solid var(--panel-bd);
  background:
    radial-gradient(120% 140% at 50% 0%, rgba(123,92,255,0.18), transparent 55%),
    linear-gradient(180deg, rgba(255,255,255,0.05), rgba(255,255,255,0.015));
}
.contact__glow {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background: radial-gradient(600px 200px at 50% 120%, rgba(76,196,255,0.25), transparent 70%);
}
.contact__panel > * { position: relative; z-index: 1; }
.contact__panel h2 { font-size: clamp(2rem, 5vw, 3.4rem); margin-bottom: 18px; }
.contact__lead { color: var(--ink-dim); max-width: 520px; margin: 0 auto 34px; font-size: 1.05rem; }

/* email + copy-to-clipboard button */
.contact__email { display: inline-flex; align-items: center; gap: 12px; flex-wrap: wrap; justify-content: center; }
.copy-btn {
  position: relative;
  width: 50px; height: 50px;
  display: inline-grid; place-items: center;
  border-radius: 14px;
  border: 1px solid var(--panel-bd);
  background: rgba(255, 255, 255, 0.05);
  color: var(--ink-dim);
  cursor: pointer;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease), box-shadow 0.25s var(--ease), transform 0.25s var(--ease);
}
.copy-btn:hover { color: var(--ink); border-color: var(--blue); box-shadow: 0 0 22px rgba(76, 196, 255, 0.25); transform: translateY(-1px); }
.copy-btn:focus-visible { outline: 2px solid var(--blue); outline-offset: 2px; }
.copy-btn__i { grid-area: 1 / 1; width: 20px; height: 20px; transition: opacity 0.2s var(--ease), transform 0.2s var(--ease); }
.copy-btn__i--check { opacity: 0; transform: scale(0.5); color: #3fe07d; }
.copy-btn.is-copied { color: #3fe07d; border-color: #3fe07d; box-shadow: 0 0 22px rgba(63, 224, 125, 0.25); }
.copy-btn.is-copied .copy-btn__i--copy { opacity: 0; transform: scale(0.5); }
.copy-btn.is-copied .copy-btn__i--check { opacity: 1; transform: none; }
.copy-btn__tip {
  position: absolute; bottom: calc(100% + 10px); left: 50%;
  transform: translateX(-50%) translateY(6px);
  background: #0c1322; color: var(--ink);
  font-size: 0.72rem; font-weight: 600; letter-spacing: 0.02em;
  padding: 6px 11px; border-radius: 8px; border: 1px solid var(--panel-bd);
  white-space: nowrap; pointer-events: none;
  opacity: 0; transition: opacity 0.2s var(--ease), transform 0.2s var(--ease);
}
.copy-btn__tip::after {
  content: ""; position: absolute; top: 100%; left: 50%; transform: translateX(-50%);
  border: 5px solid transparent; border-top-color: #0c1322;
}
.copy-btn.is-copied .copy-btn__tip { opacity: 1; transform: translateX(-50%) translateY(0); }

/* =========================================================
   FOOTER
   ========================================================= */
.footer { border-top: 1px solid var(--panel-bd); padding: 40px 0; }
.footer__inner { display: flex; align-items: center; justify-content: space-between; gap: 20px; flex-wrap: wrap; }
.footer__brand { display: flex; align-items: baseline; gap: 8px; }
.footer__copy { color: var(--ink-dim); font-size: 0.85rem; }
.footer__note { color: var(--ink-faint); font-size: 0.78rem; letter-spacing: 0.02em; }

/* =========================================================
   REVEAL ANIMATION
   ========================================================= */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity 0.8s var(--ease), transform 0.8s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero__video { transform: none; }
  .hero__scroll-dot::after { animation: none; }
}

/* =========================================================
   RESPONSIVE
   ========================================================= */
@media (max-width: 980px) {
  .cards { grid-template-columns: repeat(2, 1fr); }
  .caps__grid { grid-template-columns: repeat(2, 1fr); }
  .studio__grid { grid-template-columns: 1fr; }
}
@media (max-width: 720px) {
  .nav__links {
    position: fixed; inset: 72px 0 auto 0;
    flex-direction: column; gap: 0; align-items: stretch;
    background: rgba(6,9,18,0.96); backdrop-filter: blur(16px);
    border-bottom: 1px solid var(--panel-bd);
    padding: 8px 6vw 22px;
    transform: translateY(-120%); transition: transform 0.4s var(--ease);
  }
  .nav__links.is-open { transform: none; }
  .nav__links a { padding: 16px 0; border-bottom: 1px solid rgba(255,255,255,0.05); }
  .nav__links a:not(.nav__cta)::after { display: none; }
  .nav__cta { text-align: center; margin-top: 12px; }
  .nav__toggle { display: flex; }
  .cards { grid-template-columns: 1fr; }
  .caps__grid { grid-template-columns: 1fr; }
  .studio__stats { gap: 28px; }

  /* hero text sits in the lower area; stack the buttons full-width */
  .hero { padding-bottom: 12vh; }
  .hero__tagline { margin: 0 auto 30px; }
  .hero__actions { flex-direction: column; align-items: center; }
  .hero__actions .btn { width: 100%; max-width: 320px; justify-content: center; }

  /* keep the email + copy button side-by-side on small screens */
  .contact__email .btn--lg { padding: 15px 22px; font-size: 0.9rem; }
}