/* =============================================================
   1. Tokens
   ============================================================= */
:root {
  --bg:          #05070d;
  --bg-1:        #070a15;
  --bg-2:        #0a0e1c;
  --bg-labs:     #0d0a1c;
  --surface:     rgba(255,255,255,.045);
  --surface-2:   rgba(255,255,255,.075);
  --line:        rgba(244,246,251,.10);
  --line-strong: rgba(244,246,251,.18);

  --ink:         #f4f6fb;
  --ink-soft:    #d3d8e8;
  --ink-mute:    #9aa2bd;
  --ink-dim:     #6b7290;

  --blue:        #4f7cff;
  --blue-2:      #6f9bff;
  --purple:      #9b5cf6;
  --purple-2:    #b98af9;
  --gradient:    linear-gradient(120deg, var(--blue) 0%, var(--purple) 100%);

  --radius:      22px;
  --radius-sm:   12px;
  --container:   1240px;

  --serif:  "Fraunces", serif; /* unused — kept for reference only */
  --display: "Space Grotesk", "Inter", sans-serif;
  --sans:    "Inter", system-ui, sans-serif;

  --ease-out:   cubic-bezier(0.16, 1, 0.3, 1);
  --ease-soft:  cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-in:    cubic-bezier(0.7, 0, 0.84, 0);
}

/* =============================================================
   2. Reset & base
   ============================================================= */
*, *::before, *::after { box-sizing: border-box; margin: 0; }
html {
  -webkit-text-size-adjust: 100%;
  tab-size: 2;
  scroll-behavior: smooth;
  background: var(--bg);
}
body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  background: var(--bg);
  color: var(--ink-soft);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: clip;
  overscroll-behavior-y: none;
}
body.no-scroll { overflow: hidden; }
img, svg, video { display: block; max-width: 100%; }
img { height: auto; }
button { font: inherit; color: inherit; cursor: pointer; border: 0; background: none; }
a { color: inherit; text-decoration: none; }
p { text-wrap: pretty; }
h1, h2, h3, h4 {
  font-family: var(--display);
  color: var(--ink);
  text-wrap: balance;
  line-height: 1.05;
  letter-spacing: -0.02em;
  font-weight: 600;
}
ul { list-style: none; padding: 0; }
::selection { background: var(--purple); color: var(--ink); }

:focus-visible {
  outline: 2px solid var(--blue-2);
  outline-offset: 3px;
  border-radius: 4px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

/* =============================================================
   3. Utilities
   ============================================================= */
.skip-link {
  position: fixed; top: -100px; left: 1rem;
  padding: .6rem 1rem; background: var(--ink); color: var(--bg);
  z-index: 9999; border-radius: 8px; font-weight: 600;
  transition: top .25s var(--ease-out);
}
.skip-link:focus { top: 1rem; }

.container {
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: 1.25rem;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: .55rem;
  font-size: .8rem; font-weight: 600;
  letter-spacing: .1em; text-transform: uppercase;
  color: var(--blue-2);
}
.eyebrow::before {
  content: ""; width: 6px; height: 6px; border-radius: 50%;
  background: var(--gradient);
}

.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text; background-clip: text;
  color: transparent;
}

[data-reveal] {
  opacity: 0; transform: translateY(32px);
  transition: opacity .85s var(--ease-soft), transform .85s var(--ease-soft);
}
[data-reveal].is-revealed { opacity: 1; transform: none; }
[data-reveal-delay="1"] { transition-delay: .08s; }
[data-reveal-delay="2"] { transition-delay: .16s; }
[data-reveal-delay="3"] { transition-delay: .24s; }
[data-reveal-delay="4"] { transition-delay: .32s; }
[data-reveal-delay="5"] { transition-delay: .4s; }

[data-gsap-fade] { will-change: transform, opacity; }

.icon {
  width: 26px; height: 26px;
  stroke: url(#icon-gradient);
  fill: none;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
  flex-shrink: 0;
}
.icon-lg { width: 34px; height: 34px; }

.tag {
  display: inline-flex; align-items: center;
  padding: .35rem .8rem;
  border-radius: 999px;
  font-size: .78rem; font-weight: 600;
  letter-spacing: .02em;
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
  color: var(--ink-soft);
}

.section-head {
  max-width: 640px;
  margin-bottom: 3rem;
}
.section-head h2 { font-size: clamp(2rem, 5vw, 3rem); margin-block: .85rem 1rem; }
.section-head p { color: var(--ink-mute); font-size: 1.05rem; max-width: 52ch; }
.section-head.is-centered { margin-inline: auto; text-align: center; }

/* =============================================================
   4. Typography
   ============================================================= */
.hero-title {
  font-size: clamp(3.1rem, 9vw, 6.6rem);
  line-height: .96;
  max-width: 14ch;
}
.hero-sub { color: var(--ink-mute); font-size: 1.15rem; max-width: 46ch; }

/* =============================================================
   5. Components
   ============================================================= */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .95rem 1.7rem;
  border-radius: 999px;
  font-weight: 600; font-size: .95rem;
  transition: transform .45s var(--ease-soft), box-shadow .45s var(--ease-soft), background .3s var(--ease-out);
  white-space: nowrap;
}
.btn-primary {
  background: var(--gradient);
  color: #06070d;
  box-shadow: 0 12px 30px -8px rgba(79,124,255,.45), 0 8px 20px -8px rgba(155,92,246,.4);
}
.btn-primary:hover { transform: translateY(-3px); box-shadow: 0 20px 44px -10px rgba(79,124,255,.55), 0 14px 30px -10px rgba(155,92,246,.5); }
.btn-ghost {
  border: 1px solid var(--line-strong);
  color: var(--ink);
  background: var(--surface);
}
.btn-ghost:hover { background: var(--surface-2); transform: translateY(-3px); }
.btn-sm { padding: .7rem 1.3rem; font-size: .85rem; }

.has-magnetic { display: inline-flex; position: relative; isolation: isolate; }
.magnetic-inner {
  display: inline-flex; align-items: center; justify-content: center; gap: inherit;
  will-change: transform;
  transition: transform .8s var(--ease-soft);
}

.glass-card {
  position: relative;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%);
  transition: transform .5s var(--ease-soft), border-color .4s var(--ease-out), box-shadow .5s var(--ease-soft);
}
@supports not (backdrop-filter: blur(1px)) {
  .glass-card { background: rgba(14,17,30,0.92); }
}
.glass-card:hover {
  border-color: var(--line-strong);
  box-shadow: 0 40px 80px -30px rgba(79,124,255,.25), 0 30px 60px -30px rgba(155,92,246,.2);
}

[data-tilt] {
  --rx: 0deg; --ry: 0deg;
  transform: perspective(1000px) rotateX(var(--rx)) rotateY(var(--ry));
  transform-style: preserve-3d;
}
[data-tilt]:hover { transition-duration: .15s; }
[data-tilt]::before {
  content: ""; position: absolute; inset: 0; border-radius: inherit; z-index: -1;
  background: radial-gradient(240px circle at var(--mx, 50%) var(--my, 50%), rgba(111,155,255,.16), transparent 60%);
  opacity: 0; transition: opacity .4s;
  pointer-events: none;
}
[data-tilt]:hover::before { opacity: 1; }

.card-icon-wrap {
  width: 52px; height: 52px;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  background: linear-gradient(150deg, rgba(79,124,255,.16), rgba(155,92,246,.14));
  border: 1px solid var(--line-strong);
  margin-bottom: 1.4rem;
}

.placeholder-panel {
  border-radius: var(--radius);
  border: 1px dashed var(--line-strong);
  background:
    linear-gradient(160deg, rgba(79,124,255,.10), rgba(155,92,246,.08)),
    var(--bg-2);
  display: flex; align-items: center; justify-content: center;
  color: var(--ink-dim);
  font-size: .85rem;
  text-align: center;
  padding: 1.5rem;
}

.img-frame {
  overflow: hidden;
  position: relative;
  border-radius: var(--radius-sm);
}
.img-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  border-radius: inherit;
}
.hero-panel.img-frame, .hero-panel-float.img-frame { border-radius: var(--radius); }

.field { position: relative; }
.field input, .field textarea {
  width: 100%;
  padding: 1.35rem 1rem .55rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line-strong);
  background: var(--surface);
  color: var(--ink);
  font: inherit;
  transition: border-color .25s var(--ease-out), background .25s var(--ease-out);
}
.field textarea { min-height: 130px; resize: vertical; }
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--blue-2);
  background: rgba(79,124,255,.06);
}
.field label {
  position: absolute; left: 1rem; top: 1.1rem;
  pointer-events: none; transition: all .25s var(--ease-out);
  color: var(--ink-dim); font-size: .95rem;
}
.field input:focus + label, .field input:not(:placeholder-shown) + label,
.field textarea:focus + label, .field textarea:not(:placeholder-shown) + label {
  top: .4rem; font-size: .68rem; letter-spacing: .1em; text-transform: uppercase; color: var(--blue-2);
}

.cta-form { position: relative; transition: opacity .55s var(--ease-out), transform .55s var(--ease-soft); }
.cta-form.is-sent { opacity: 0; transform: translateY(-12px); pointer-events: none; position: absolute; inset: 0; }
.cta-submit { position: relative; width: 100%; }
.cta-submit .cta-form-spinner, .cta-submit .cta-form-check {
  position: absolute; inset: 0; display: grid; place-items: center; opacity: 0; pointer-events: none;
}
.cta-submit.is-sending .cta-form-label { opacity: 0; }
.cta-form.is-sending .cta-form-spinner { opacity: 1; }
.cta-form-spinner::after {
  content: ""; width: 18px; height: 18px;
  border: 1.5px solid rgba(6,7,13,.35); border-top-color: #06070d;
  border-radius: 50%; animation: spin .9s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.cta-success {
  position: absolute; inset: 0; display: grid; place-items: center; text-align: center; gap: .6rem;
  opacity: 0; pointer-events: none;
  transition: opacity .7s var(--ease-out), transform .8s var(--ease-soft);
  transform: translateY(10px);
}
.cta-success.is-visible { opacity: 1; pointer-events: auto; transform: none; }
.cta-success h3 { font-size: 1.4rem; }
.cta-success p { color: var(--ink-mute); }

.social-row { display: flex; gap: .75rem; }
.social-icon {
  width: 42px; height: 42px;
  display: grid; place-items: center;
  border-radius: 50%;
  border: 1px solid var(--line-strong);
  background: var(--surface);
  transition: background .3s var(--ease-out), transform .3s var(--ease-soft), border-color .3s;
}
.social-icon:hover { background: var(--surface-2); transform: translateY(-3px); border-color: var(--blue-2); }
.social-icon svg { width: 18px; height: 18px; stroke: var(--ink-soft); fill: none; stroke-width: 1.6; }

/* =============================================================
   6. Sections
   ============================================================= */

/* --- Nav --- */
.nav {
  position: fixed; inset-inline: 0; top: 0; z-index: 100;
  transition: background-color .4s var(--ease-out), backdrop-filter .4s var(--ease-out), border-color .4s var(--ease-out);
  border-bottom: 1px solid transparent;
}
.nav.is-scrolled {
  background: rgba(5,7,13,.78);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border-color: var(--line);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }
.nav-brand { font-family: var(--display); font-weight: 700; font-size: 1.3rem; letter-spacing: -.01em; color: var(--ink); }
.nav-links { display: none; align-items: center; gap: 2.2rem; }
.nav-link { position: relative; font-size: .93rem; color: var(--ink-mute); padding: .25rem 0; }
.nav-link::after {
  content: ""; position: absolute; left: 0; right: 0; bottom: -4px; height: 1px;
  background: var(--gradient);
  transform: scaleX(0); transform-origin: right;
  transition: transform .4s var(--ease-out);
}
.nav-link:hover { color: var(--ink); }
.nav-link:hover::after { transform: scaleX(1); transform-origin: left; }
.nav-cta { display: none; }
.nav-toggle { display: flex; flex-direction: column; gap: 5px; padding: .5rem; z-index: 110; }
.nav-toggle span { display: block; width: 22px; height: 2px; background: var(--ink); transition: transform .25s var(--ease-out), opacity .25s; }

.nav-menu {
  position: fixed; inset: 76px 0 0 0;
  background: rgba(5,7,13,.98);
  backdrop-filter: blur(20px);
  display: flex; flex-direction: column; justify-content: center; gap: 2rem;
  padding: 2rem 1.5rem;
  transform: translateX(100%);
  transition: transform .4s var(--ease-out);
}
.nav-menu.is-open { transform: translateX(0); }
.nav-menu a { font-size: 1.3rem; font-weight: 500; color: var(--ink); }
.nav-menu .btn { align-self: flex-start; margin-top: .5rem; }

/* --- Hero --- */
.hero {
  position: relative;
  padding: 9.5rem 0 5rem;
  overflow: hidden;
  isolation: isolate;
}
.hero-canvas-wrap { position: absolute; inset: 0; z-index: -2; }
.hero-canvas-wrap canvas { position: absolute; inset: 0; }
.hero-mesh {
  position: absolute; inset: -20% -10%; z-index: -1;
  background:
    radial-gradient(46% 40% at var(--mx, 32%) var(--my, 30%), rgba(79,124,255,.35), transparent 60%),
    radial-gradient(50% 42% at calc(100% - var(--mx, 32%)) calc(100% - var(--my, 30%)), rgba(155,92,246,.32), transparent 62%);
  filter: blur(90px) saturate(130%);
  pointer-events: none;
}
.hero-grid-fade {
  position: absolute; inset: 0; z-index: -1; pointer-events: none;
  background: radial-gradient(ellipse at 50% 0%, transparent 30%, var(--bg) 78%);
}
.hero-inner {
  display: grid;
  gap: 3.5rem;
  align-items: center;
}
.hero-copy { position: relative; z-index: 1; }
.hero-title { margin-block: 1.1rem 1.2rem; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 1rem; margin-top: 2.1rem; }
.hero-meta-row {
  display: flex; flex-wrap: wrap; gap: 1.6rem;
  margin-top: 3rem; padding-top: 1.8rem;
  border-top: 1px solid var(--line);
}
.hero-meta-item { display: flex; flex-direction: column; gap: .2rem; }
.hero-meta-item strong { font-family: var(--display); font-size: 1.5rem; color: var(--ink); }
.hero-meta-item span { font-size: .8rem; color: var(--ink-dim); text-transform: uppercase; letter-spacing: .06em; }

.hero-visual { position: relative; display: none; }
.hero-panel {
  aspect-ratio: 4 / 3.1;
  padding: .9rem;
  transform: rotate(2.5deg);
}
.hero-panel-float {
  position: absolute;
  bottom: -1.6rem; left: -1.6rem;
  width: 58%;
  aspect-ratio: 16/10;
  transform: rotate(-4deg);
  padding: .7rem;
  z-index: 2;
}

/* --- Services --- */
.services { padding-block: 6rem; position: relative; }
.service-featured {
  padding: 2.6rem;
  display: grid;
  gap: 2rem;
  margin-bottom: 1.25rem;
}
.service-featured .card-icon-wrap { width: 62px; height: 62px; }
.service-featured h3 { font-size: 1.7rem; margin-bottom: .7rem; }
.service-featured p { color: var(--ink-mute); max-width: 60ch; }
.service-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
}
.service-card { padding: 2rem; }
.service-card h3 { font-size: 1.15rem; margin-bottom: .55rem; }
.service-card p { color: var(--ink-mute); font-size: .95rem; }

/* --- Why Vexlai --- */
.why { padding-block: 6rem; background: var(--bg-1); position: relative; }
.why-grid { display: grid; gap: 3rem; }
.why-stats { display: flex; gap: 2.2rem; flex-wrap: wrap; margin-top: 2.2rem; }
.why-stat strong { font-family: var(--display); font-size: 2.1rem; color: var(--ink); display: block; }
.why-stat span { font-size: .82rem; color: var(--ink-dim); }
.pillar-list { display: flex; flex-direction: column; }
.pillar {
  display: flex; gap: 1.2rem;
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
}
.pillar:first-child { border-top: none; }
.pillar-icon {
  width: 44px; height: 44px; flex-shrink: 0;
  display: grid; place-items: center;
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  border: 1px solid var(--line-strong);
}
.pillar h4 { font-size: 1.05rem; margin-bottom: .3rem; color: var(--ink); }
.pillar p { font-size: .9rem; color: var(--ink-mute); }

/* --- Testimonials --- */
.testimonials { padding-block: 6rem; background: var(--bg-1); }
.testi-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }
.testi-card { padding: 2.2rem; display: flex; flex-direction: column; gap: 1.4rem; }
.testi-quote { font-size: 1.05rem; color: var(--ink-soft); }
.testi-quote::before { content: "\201C"; color: var(--blue-2); font-size: 1.4em; line-height: 0; }
.testi-person { display: flex; align-items: center; gap: .9rem; }
.testi-avatar {
  width: 44px; height: 44px; border-radius: 50%;
  background: var(--gradient);
  display: grid; place-items: center;
  font-family: var(--display); font-weight: 700; color: #06070d; font-size: .95rem;
}
.testi-person strong { display: block; font-size: .92rem; color: var(--ink); }
.testi-person span { font-size: .82rem; color: var(--ink-dim); }

/* --- Vexlai Labs --- */
.labs {
  padding-block: 6.5rem;
  position: relative;
  background: var(--bg-labs);
  overflow: hidden;
  isolation: isolate;
}
.labs::before {
  content: ""; position: absolute; inset: -20%; z-index: -1;
  background: radial-gradient(50% 45% at 80% 20%, rgba(155,92,246,.28), transparent 65%),
              radial-gradient(45% 40% at 15% 80%, rgba(79,124,255,.18), transparent 65%);
  filter: blur(100px);
}
.labs-head { display: grid; gap: 2.5rem; margin-bottom: 3rem; align-items: end; }
.labs-head p { color: var(--ink-mute); max-width: 50ch; }
.lab-grid { display: grid; grid-template-columns: 1fr; gap: 1.25rem; }
.lab-card { padding: 1.9rem; }
.lab-card .tag { margin-bottom: 1.2rem; }
.lab-card h3 { font-size: 1.15rem; margin-bottom: .6rem; }
.lab-card p { color: var(--ink-mute); font-size: .92rem; margin-bottom: 1rem; }
.lab-card .lab-link { font-size: .85rem; font-weight: 600; color: var(--blue-2); }

/* --- Contact --- */
.contact { padding-block: 6.5rem; }
.contact-grid { display: grid; gap: 3rem; }
.contact-pitch h2 { font-size: clamp(2rem, 5vw, 2.8rem); margin-bottom: 1.1rem; }
.contact-pitch p { color: var(--ink-mute); max-width: 46ch; margin-bottom: 2rem; }
.contact-email {
  display: inline-flex; align-items: center; gap: .6rem;
  font-family: var(--display); font-size: 1.3rem; color: var(--ink);
  margin-bottom: 2.2rem;
}
.contact-form-card { padding: 2.2rem; }
.form-row { display: grid; gap: 1.1rem; margin-bottom: 1.1rem; }

/* --- Footer --- */
.footer { padding-block: 4rem 2.5rem; border-top: 1px solid var(--line); }
.footer-grid {
  display: grid; grid-template-columns: 1fr; gap: 2.5rem;
  padding-bottom: 3rem;
}
.footer-brand p { color: var(--ink-mute); max-width: 34ch; margin-block: 1rem 1.4rem; font-size: .92rem; }
.footer-col h4 { font-size: .85rem; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-dim); margin-bottom: 1.1rem; }
.footer-col ul { display: flex; flex-direction: column; gap: .7rem; }
.footer-col a { font-size: .92rem; color: var(--ink-mute); transition: color .25s; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom {
  display: flex; flex-direction: column; gap: 1rem;
  padding-top: 2rem; border-top: 1px solid var(--line);
  font-size: .82rem; color: var(--ink-dim);
}

/* =============================================================
   7. Effects
   ============================================================= */
@keyframes floatY {
  0%, 100% { transform: translateY(0) rotate(var(--rot, 0deg)); }
  50% { transform: translateY(-14px) rotate(var(--rot, 0deg)); }
}
.hero-panel { animation: floatY 7s ease-in-out infinite; --rot: 2.5deg; }
.hero-panel-float { animation: floatY 8.5s ease-in-out infinite; animation-delay: .4s; --rot: -4deg; }

/* =============================================================
   8. Responsive
   ============================================================= */
@media (min-width: 540px) {
  .why-stats { gap: 3rem; }
}

@media (min-width: 720px) {
  .service-grid { grid-template-columns: repeat(2, 1fr); }
  .testi-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1.3fr 1fr 1fr; }
}

@media (min-width: 960px) {
  .nav-links { display: flex; }
  .nav-cta { display: inline-flex; }
  .nav-toggle { display: none; }

  .hero-inner { grid-template-columns: 1.1fr .9fr; }
  .hero-visual { display: block; }
  .hero-meta-row { gap: 2.6rem; }

  .service-featured { grid-template-columns: 1.1fr .9fr; align-items: center; }
  .service-grid { grid-template-columns: repeat(3, 1fr); }

  .why-grid { grid-template-columns: 1fr 1.1fr; }

  .testi-grid { grid-template-columns: repeat(3, 1fr); }

  .labs-head { grid-template-columns: 1.2fr .8fr; }
  .lab-grid { grid-template-columns: repeat(3, 1fr); }

  .contact-grid { grid-template-columns: 1fr 1fr; }
  .form-row.two-col { grid-template-columns: 1fr 1fr; }

  .footer-grid { grid-template-columns: 1.4fr .8fr .8fr .8fr; }
}

@media (min-width: 1280px) {
  .hero { padding-block: 11rem 6rem; }
  .service-featured { padding: 3.4rem; }
}

/* =============================================================
   9. Reduced-motion (only intrusive effects)
   ============================================================= */
@media (prefers-reduced-motion: reduce) {
  .hero-panel, .hero-panel-float { animation: none; }
  .hero-canvas-wrap { display: none; }
}