/* ---------------------------------------------------
   Optyx Studio — base
--------------------------------------------------- */

:root {
  --bg: #f2f0ea;
  --bg-black: #0a0a0c;
  --bg-panel: #ffffff;
  --border: rgba(10, 10, 10, 0.08);
  --border-strong: rgba(10, 10, 10, 0.15);
  --border-dark: rgba(255, 255, 255, 0.14);

  --text: #0d0d0e;
  --text-dim: #55555c;
  --text-on-dark: #f5f4f1;

  /* metallic dark blue accent: text-safe variant + brighter fill variant */
  --accent: #1f3a54;
  --accent-bright: #3b6690;
  --accent-dim: rgba(59, 102, 144, 0.16);

  --font: 'Inter', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-display: 'Big Shoulders Stencil Display', var(--font);

  --wrap: 1180px;
  --gutter: clamp(1.25rem, 4vw, 3rem);

  /* micro-interaction easing (hover, toggle states) */
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
  /* cinematic ease-in-out (slow-fast-slow) for the intro and all scroll-scrubbed motion */
  --ease-cinematic: cubic-bezier(0.65, 0, 0.35, 1);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg-black);
  color: var(--text);
  font-family: var(--font);
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.intro-active {
  overflow: hidden;
  height: 100%;
}

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

a { color: inherit; text-decoration: none; }

ul { list-style: none; margin: 0; padding: 0; }

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

.skip-link {
  position: absolute;
  left: -999px;
  top: auto;
  background: var(--accent-bright);
  color: #fff;
  padding: 0.75rem 1.25rem;
  z-index: 999;
  border-radius: 6px;
}
.skip-link:focus {
  left: 1rem;
  top: 1rem;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { animation-duration: 0.01ms !important; transition-duration: 0.01ms !important; }
}

/* ---------------------------------------------------
   Intro — letter-by-letter reveal, a deliberate opening title
--------------------------------------------------- */

.intro {
  position: fixed;
  inset: 0;
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  opacity: 1;
}

.intro-skip .intro { display: none; }

.intro-inner {
  position: relative;
  text-align: center;
}

.intro-glow {
  position: absolute;
  inset: -40% -60%;
  background: radial-gradient(circle, var(--accent-dim), transparent 65%);
  opacity: 0;
  transition: opacity 2.2s var(--ease-cinematic);
  pointer-events: none;
}
.intro.run .intro-glow { opacity: 1; }

.intro-word {
  position: relative;
  margin: 0;
  display: flex;
  justify-content: center;
}

.intro-primary {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.75rem, 9vw, 6rem);
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: #fff;
}

.intro-sub {
  position: relative;
  margin-top: 0.75rem;
  font-family: var(--font);
  font-weight: 600;
  font-size: clamp(0.75rem, 1.6vw, 0.95rem);
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.55);
}

.intro-letter {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.5em) scale(0.82);
  text-shadow: 0 0 0 rgba(143, 184, 221, 0);
}

.intro.run .intro-letter {
  animation: introLetterIn 1.4s var(--ease-cinematic) forwards;
  animation-delay: calc(var(--i) * 150ms);
}

@keyframes introLetterIn {
  0% {
    opacity: 0;
    transform: translateY(0.5em) scale(0.82);
    text-shadow: 0 0 0 rgba(143, 184, 221, 0);
  }
  45% {
    text-shadow: 0 0 28px rgba(143, 184, 221, 0.55);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
    text-shadow: 0 0 0 rgba(143, 184, 221, 0);
  }
}

.intro.exit {
  opacity: 0;
  transition: opacity 1.4s var(--ease-cinematic);
  pointer-events: none;
}
.intro.exit .intro-inner {
  transform: scale(1.06);
  transition: transform 1.6s var(--ease-cinematic);
}

/* ---------------------------------------------------
   Buttons
--------------------------------------------------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 1.75rem;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 600;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform 0.2s var(--ease), background 0.2s var(--ease), border-color 0.2s var(--ease), color 0.2s var(--ease);
  white-space: nowrap;
}

.btn-primary {
  background: var(--accent-bright);
  color: #fff;
}
.btn-primary:hover {
  transform: translateY(-2px);
  background: #4a79a8;
}

.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border-strong);
}
.btn-ghost:hover {
  transform: translateY(-2px);
  border-color: var(--accent);
  color: var(--accent);
}

/* ---------------------------------------------------
   Header / nav — always solid black, nav links only
--------------------------------------------------- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 300;
  color: var(--text-on-dark);
  background: var(--bg-black);
  border-bottom: 1px solid var(--border-dark);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  height: 92px;
}

.site-nav ul {
  display: flex;
  align-items: center;
  gap: 2.5rem;
}

.site-nav a {
  font-family: var(--font);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.3em;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.75;
  transition: opacity 0.2s var(--ease);
}
.site-nav a:hover { opacity: 1; }

.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: transparent;
  border: 1px solid currentColor;
  opacity: 0.85;
  border-radius: 8px;
  cursor: pointer;
  color: inherit;
}
.nav-toggle span {
  display: block;
  width: 16px;
  height: 1.5px;
  margin-inline: auto;
  background: currentColor;
  transition: transform 0.25s var(--ease), opacity 0.25s var(--ease);
}
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

.mobile-nav {
  max-height: 0;
  overflow: hidden;
  border-top: 1px solid transparent;
  transition: max-height 0.3s var(--ease), border-color 0.3s var(--ease);
}
.mobile-nav.open {
  max-height: 260px;
  border-top-color: var(--border-dark);
}
.mobile-nav ul {
  display: flex;
  flex-direction: column;
  padding: 1rem var(--gutter) 1.5rem;
  gap: 1.1rem;
}
.mobile-nav a {
  font-family: var(--font);
  font-size: 0.85rem;
  font-weight: 600;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: inherit;
  opacity: 0.8;
}

/* logo kept only for the footer lockup */
.logo {
  display: inline-flex;
  align-items: center;
  color: inherit;
}
.logo-word {
  display: flex;
  flex-direction: column;
  line-height: 1;
}
.logo-primary {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: 0.01em;
  text-transform: uppercase;
  color: inherit;
}
.logo-sub {
  font-weight: 600;
  font-size: 0.6rem;
  letter-spacing: 0.3em;
  color: inherit;
  opacity: 0.6;
  margin-top: 0.35em;
}

/* ---------------------------------------------------
   Mask-wipe transitions — one fixed overlay, scroll-scrubbed
--------------------------------------------------- */

.wipe-overlay {
  position: fixed;
  inset: 0;
  z-index: 60;
  pointer-events: none;
  clip-path: circle(0% at 50% 100%);
  will-change: clip-path;
  display: none;
}

/* ---------------------------------------------------
   Persistent drifting badge — connective thread through the whole scroll
--------------------------------------------------- */

.badge-drift {
  position: fixed;
  top: 50%;
  left: 50%;
  width: 38px;
  height: 38px;
  z-index: 40;
  pointer-events: none;
  opacity: 0.55;
  will-change: transform;
  transform: translate(-50%, -50%);
}
.badge-drift-ring {
  fill: none;
  stroke: #fff;
  stroke-width: 2.2;
  transition: stroke 0.5s var(--ease-cinematic);
}
.badge-drift-dot { fill: var(--accent-bright); }
.badge-drift.on-light .badge-drift-ring { stroke: #0d0d0e; }

/* ---------------------------------------------------
   Parallax / depth-drift layers
--------------------------------------------------- */

.parallax-layer {
  position: absolute;
  z-index: 0;
  pointer-events: none;
  will-change: transform;
}

.blob-a,
.blob-b {
  border-radius: 50%;
  filter: blur(90px);
}

.blob-a {
  top: -140px;
  right: -120px;
  width: 480px;
  height: 480px;
  background: radial-gradient(circle, var(--accent-dim), transparent 70%);
  opacity: 0.9;
}

.blob-b {
  top: -100px;
  left: -140px;
  width: 420px;
  height: 420px;
  background: radial-gradient(circle, var(--accent-dim), transparent 70%);
  opacity: 0.8;
}

/* ---------------------------------------------------
   Full-bleed background video (shared)
--------------------------------------------------- */

.section-video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
}

/* ---------------------------------------------------
   Hero — full-bleed looping video, wordmark only
--------------------------------------------------- */

.hero {
  position: relative;
  height: 100vh;
  height: 100svh;
  min-height: 560px;
  padding-block: 0;
  overflow: hidden;
  background: var(--bg-black);
}

.hero-video { object-position: 62% 50%; }

.hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(to bottom, rgba(0, 0, 0, 0.35) 0%, rgba(0, 0, 0, 0) 32%);
}

.hero-inner {
  position: relative;
  z-index: 2;
  height: 100%;
}

.hero-logo {
  position: absolute;
  top: 34%;
  left: var(--gutter);
  transform: translateY(-50%);
  display: flex;
  flex-direction: column;
  line-height: 1;
  color: #fff;
}

.hero-logo-primary {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(2.75rem, 6vw, 4.75rem);
  letter-spacing: 0.01em;
  text-transform: uppercase;
}

.hero-logo-sub {
  margin-top: 0.6em;
  font-weight: 600;
  font-size: clamp(0.7rem, 1.1vw, 0.85rem);
  letter-spacing: 0.32em;
  text-transform: uppercase;
  opacity: 0.65;
}

.eyebrow {
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent);
  margin: 0 0 1.25rem;
}

/* ---------------------------------------------------
   Section shared
--------------------------------------------------- */

section { padding-block: clamp(4rem, 8vw, 8rem); position: relative; }

.section-title {
  font-size: clamp(1.9rem, 3.6vw, 3rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  max-width: 18ch;
  margin: 0 0 1rem;
}

.why-sub {
  color: var(--text-dim);
  font-size: 1.05rem;
  max-width: 55ch;
  margin: 0 0 3rem;
}

/* ---------------------------------------------------
   Services — off-white, holds
--------------------------------------------------- */

.services {
  min-height: 130vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg);
}

.services .wrap { position: relative; z-index: 1; width: 100%; }

.services-grid {
  margin-top: 3.5rem;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.service-card {
  padding: 2.25rem 2rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-panel);
  transition: border-color 0.25s var(--ease), transform 0.25s var(--ease);
}
.service-card:hover {
  border-color: var(--border-strong);
  transform: translateY(-4px);
}

.service-icon { color: var(--accent); margin-bottom: 1.5rem; }

.service-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin: 0 0 0.65rem;
  letter-spacing: -0.01em;
}

.service-card p {
  color: var(--text-dim);
  font-size: 0.95rem;
  margin: 0;
}

/* ---------------------------------------------------
   Video punctuation beats — short holds, layered depth
--------------------------------------------------- */

.beat {
  min-height: 78vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg-black);
  color: var(--text-on-dark);
  text-align: center;
}

.beat-bigtype {
  position: absolute;
  inset: 0;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: clamp(4rem, 17vw, 13rem);
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.07);
  white-space: nowrap;
}

.beat-inner {
  position: relative;
  z-index: 2;
  width: 100%;
}

.beat-caption {
  font-size: clamp(1.15rem, 2.4vw, 1.7rem);
  font-weight: 600;
  letter-spacing: -0.01em;
  max-width: 22ch;
  margin: 0 auto;
  color: var(--text-on-dark);
}

/* ---------------------------------------------------
   Why us — off-white, holds
--------------------------------------------------- */

.why-us {
  min-height: 130vh;
  display: flex;
  align-items: center;
  overflow: hidden;
  background: var(--bg);
}

.why-us .wrap { position: relative; z-index: 1; width: 100%; }

.testimonials {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  margin-bottom: 3rem;
}

.testimonial {
  margin: 0;
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-panel);
}
.testimonial p {
  font-size: 1.05rem;
  line-height: 1.55;
  margin: 0 0 1.25rem;
  color: var(--text);
}
.testimonial cite {
  font-style: normal;
  color: var(--text-dim);
  font-size: 0.88rem;
}

.badges {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
}

.badge {
  padding: 0.65rem 1.25rem;
  border: 1px dashed var(--border-strong);
  border-radius: 999px;
  font-size: 0.82rem;
  color: var(--text-dim);
}

/* ---------------------------------------------------
   Final section — case study + contact, off-white, runs to the footer
--------------------------------------------------- */

.final-section { background: var(--bg); }

.case-study-inner {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}

.kenburns-frame {
  position: relative;
  aspect-ratio: 16 / 11;
  border: 1px dashed var(--border-strong);
  border-radius: 16px;
  overflow: hidden;
  background: var(--bg-panel);
}

.kenburns-media {
  width: 100%;
  height: 100%;
  transform-origin: center center;
  will-change: transform;
}

.screenshot-placeholder {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  color: var(--text-dim);
}
.screenshot-placeholder span {
  font-size: 0.85rem;
  letter-spacing: 0.03em;
}

.case-tag {
  color: var(--accent);
  font-size: 0.9rem;
  font-weight: 600;
  margin: 0 0 1.25rem;
}

.case-copy {
  color: var(--text-dim);
  font-size: 1.02rem;
  margin: 0 0 1.75rem;
}

.case-results {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin: 0 0 2.25rem;
}
.case-results li {
  padding-left: 1.4rem;
  position: relative;
  color: var(--text-dim);
  font-size: 0.92rem;
}
.case-results li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent-bright);
}

.contact-block { margin-top: clamp(4rem, 8vw, 7rem); }

.contact-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr;
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
  margin-top: 3rem;
}

.field { margin-bottom: 1.4rem; }

.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-dim);
  margin-bottom: 0.5rem;
}

.field input,
.field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  background: var(--bg-panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-family: inherit;
  font-size: 0.98rem;
  resize: vertical;
  transition: border-color 0.2s var(--ease);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.form-note {
  min-height: 1.2em;
  margin: 1rem 0 0;
  font-size: 0.9rem;
  color: var(--accent);
}

.contact-direct {
  padding: 2rem;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--bg-panel);
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 1rem;
}

.contact-direct-label {
  color: var(--text-dim);
  font-size: 0.9rem;
  margin: 0;
}

.contact-link {
  font-size: 1.15rem;
  font-weight: 600;
  color: var(--text);
  border-bottom: 1px solid var(--border-strong);
}
.contact-link:hover { color: var(--accent); border-color: var(--accent); }

.contact-book { margin-top: 0.5rem; }

.contact-whatsapp {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.05rem;
  font-weight: 600;
  color: var(--text);
}
.contact-whatsapp:hover { color: #25d366; }
.contact-whatsapp svg { width: 22px; height: 22px; flex-shrink: 0; color: #25d366; }

/* ---------------------------------------------------
   Floating WhatsApp button — persistent across the whole page
--------------------------------------------------- */

.fab-whatsapp {
  position: fixed;
  right: clamp(1rem, 3vw, 1.75rem);
  bottom: clamp(1rem, 3vw, 1.75rem);
  z-index: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  background: #25d366;
  color: #fff;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.25);
  transition: transform 0.25s var(--ease), box-shadow 0.25s var(--ease);
}
.fab-whatsapp svg { width: 28px; height: 28px; }
.fab-whatsapp:hover {
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 12px 28px rgba(0, 0, 0, 0.3);
}

/* ---------------------------------------------------
   Footer — no colour of its own, just off-white like the section before it
--------------------------------------------------- */

.site-footer {
  background: var(--bg);
  color: var(--text);
  padding-block: 2.5rem;
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1rem;
}

.footer-copy {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin: 0;
}

/* ---------------------------------------------------
   Cinematic scroll reveal (opacity/transform set per-frame by main.js)
--------------------------------------------------- */

.reveal {
  opacity: 1;
  will-change: opacity, transform;
}

/* ---------------------------------------------------
   Responsive
--------------------------------------------------- */

@media (max-width: 900px) {
  .services-grid { grid-template-columns: 1fr; }
  .case-study-inner { grid-template-columns: 1fr; }
  .case-media { order: -1; }
  .testimonials { grid-template-columns: 1fr; }
  .contact-grid { grid-template-columns: 1fr; }
}

@media (max-width: 760px) {
  .site-nav { display: none; }
  .nav-toggle { display: flex; }

  .header-inner { height: 76px; }

  .hero-logo { top: 30%; }

  .services, .why-us { min-height: 110vh; }
  .beat { min-height: 60vh; }

  .blob-a { top: -80px; right: -60px; width: 280px; height: 280px; filter: blur(70px); }
  .blob-b { top: -60px; left: -70px; width: 260px; height: 260px; filter: blur(70px); }

  .badge-drift { width: 28px; height: 28px; opacity: 0.4; }

  .fab-whatsapp { width: 52px; height: 52px; }
  .fab-whatsapp svg { width: 25px; height: 25px; }
}