/* ============================================================
   FastStudio — styles
   Palette: white + soft blue, easy on the eyes
   ============================================================ */

:root {
  --paper:    #FBFCFE;
  --surface:  #FFFFFF;
  --ink:      #0E1A2B;   /* soft navy, not pure black */
  --muted:    #5A6B82;
  --faint:    #8A98AC;
  --accent:   #3B6FE0;   /* soft blue */
  --accent-2: #6E9BFF;
  --wash:     #E8F0FF;   /* blue tint surface */
  --hairline: #E4EAF3;
  --shadow:   24px 40px 80px -40px rgba(24, 52, 110, 0.28);
  --shadow-sm: 0 10px 30px -18px rgba(24, 52, 110, 0.35);
  --radius:   20px;
  --radius-lg: 28px;
  --ease:     cubic-bezier(0.22, 1, 0.36, 1);
  --maxw:     1180px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  font-family: "Inter", system-ui, sans-serif;
  background: var(--paper);
  color: var(--ink);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

h1, h2, h3, .nav__brand { font-family: "Space Grotesk", sans-serif; }

a { color: inherit; text-decoration: none; }
ul, ol { list-style: none; }

/* ---------- ambient background ---------- */
.ambient { position: fixed; inset: 0; z-index: -1; overflow: hidden; }
.ambient__glow {
  position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.55;
}
.ambient__glow--a {
  width: 50vw; height: 50vw; top: -16vw; right: -10vw;
  background: radial-gradient(circle, rgba(110,155,255,0.40), transparent 70%);
}
.ambient__glow--b {
  width: 42vw; height: 42vw; bottom: -14vw; left: -10vw;
  background: radial-gradient(circle, rgba(59,111,224,0.18), transparent 70%);
}
.ambient__grid {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(to right, rgba(14,26,43,0.035) 1px, transparent 1px),
    linear-gradient(to bottom, rgba(14,26,43,0.035) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 80%);
}

/* ---------- layout ---------- */
.section {
  max-width: var(--maxw);
  margin: 0 auto;
  padding: clamp(72px, 11vw, 140px) clamp(20px, 5vw, 40px);
}
.section__head { max-width: 640px; margin-bottom: clamp(40px, 6vw, 64px); }
.section__title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 600; line-height: 1.12; letter-spacing: -0.02em;
  margin-top: 14px;
}

.eyebrow {
  display: inline-flex; align-items: center; gap: 8px;
  font-size: 0.78rem; font-weight: 600; letter-spacing: 0.14em;
  text-transform: uppercase; color: var(--accent);
}
.eyebrow::before {
  content: ""; width: 18px; height: 1.5px; background: var(--accent); border-radius: 2px;
}

.grad {
  background: linear-gradient(110deg, var(--accent), var(--accent-2));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 8px;
  font-weight: 600; font-size: 0.95rem; padding: 14px 26px; border-radius: 999px;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s, color .3s;
  will-change: transform; cursor: pointer; border: 1px solid transparent;
}
.btn--primary {
  background: var(--accent); color: #fff;
  box-shadow: 0 14px 30px -12px rgba(59,111,224,0.6);
}
.btn--primary:hover { background: #2f60cf; box-shadow: 0 20px 38px -12px rgba(59,111,224,0.7); }
.btn--ghost {
  background: var(--surface); color: var(--ink); border-color: var(--hairline);
  box-shadow: var(--shadow-sm);
}
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--text { color: var(--ink); padding: 14px 6px; }
.btn--text .arrow { transition: transform .3s var(--ease); color: var(--accent); }
.btn--text:hover .arrow { transform: translateX(6px); }

/* ---------- nav ---------- */
.nav {
  position: sticky; top: 0; z-index: 50;
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; padding: 16px clamp(20px, 5vw, 40px);
  max-width: var(--maxw); margin: 0 auto;
  transition: padding .3s var(--ease);
}
.nav.is-stuck {
  position: fixed; left: 50%; transform: translateX(-50%);
  width: min(100% - 24px, var(--maxw)); top: 12px;
  padding: 12px 18px; border-radius: 18px;
  background: rgba(255,255,255,0.72);
  backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--hairline); box-shadow: var(--shadow-sm);
}
.nav__brand {
  display: inline-flex; align-items: center; gap: 9px;
  font-weight: 700; font-size: 1.15rem; letter-spacing: -0.01em;
}
.nav__brand span { color: var(--accent); }
.nav__mark {
  display: grid; place-items: center; width: 34px; height: 34px; border-radius: 10px;
  background: var(--wash); color: var(--accent);
}
.nav__links { display: flex; gap: 28px; }
.nav__links a {
  font-size: 0.92rem; color: var(--muted); font-weight: 500; position: relative;
  transition: color .25s;
}
.nav__links a::after {
  content: ""; position: absolute; left: 0; bottom: -5px; width: 0; height: 2px;
  background: var(--accent); border-radius: 2px; transition: width .3s var(--ease);
}
.nav__links a:hover { color: var(--ink); }
.nav__links a:hover::after { width: 100%; }
.nav__cta { padding: 10px 20px; font-size: 0.9rem; }

/* ---------- hero ---------- */
.hero { max-width: var(--maxw); margin: 0 auto; padding: clamp(48px,7vw,96px) clamp(20px,5vw,40px) clamp(40px,6vw,80px); }
.hero__inner {
  display: grid; grid-template-columns: 1.05fr 0.95fr; gap: clamp(32px, 5vw, 72px);
  align-items: center;
}
.hero__title {
  font-size: clamp(2.4rem, 6.4vw, 4.6rem); line-height: 1.04;
  font-weight: 600; letter-spacing: -0.03em; margin: 18px 0 22px;
}
.hero__lede { font-size: clamp(1rem, 1.6vw, 1.18rem); color: var(--muted); max-width: 30em; }
.hero__actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; margin-top: 32px; }
.hero__meta { display: flex; align-items: center; gap: 24px; margin-top: 44px; }
.hero__meta strong { font-family: "Space Grotesk"; font-size: 1.5rem; display: block; }
.hero__meta span { font-size: 0.85rem; color: var(--faint); }
.hero__meta-div { width: 1px; height: 38px; background: var(--hairline); }

/* signature mockups */
.hero__stage { position: relative; min-height: 420px; perspective: 1400px; }
.mock {
  position: absolute; background: var(--surface); border: 1px solid var(--hairline);
  border-radius: var(--radius); box-shadow: var(--shadow); will-change: transform;
}
.mock--site {
  top: 10px; left: 0; width: 78%; overflow: hidden;
  transform: rotate(-2deg);
}
.mock__bar {
  display: flex; align-items: center; gap: 6px; padding: 12px 16px;
  border-bottom: 1px solid var(--hairline); background: #fbfcff;
}
.mock__bar span { width: 9px; height: 9px; border-radius: 50%; background: var(--hairline); }
.mock__bar span:first-child { background: #ff9b9b; }
.mock__bar em {
  margin-left: auto; font-style: normal; font-size: 0.72rem; color: var(--faint);
  background: var(--paper); padding: 4px 12px; border-radius: 8px;
}
.mock__body { padding: 22px; }
.mock__hero-line { height: 26px; width: 60%; border-radius: 8px; background: linear-gradient(90deg, var(--accent), var(--accent-2)); margin-bottom: 14px; }
.mock__line { height: 10px; border-radius: 6px; background: var(--hairline); margin-bottom: 10px; }
.mock__line.w70 { width: 70%; } .mock__line.w50 { width: 50%; }
.mock__cards { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-top: 18px; }
.mock__card { height: 70px; border-radius: 12px; background: var(--wash); }
.mock__card:last-child { background: var(--paper); border: 1px solid var(--hairline); }

.mock--bot {
  bottom: 0; right: 0; width: 56%; padding: 16px;
  transform: rotate(2deg);
}
.mock__bot-head { display: flex; align-items: center; gap: 10px; padding-bottom: 12px; border-bottom: 1px solid var(--hairline); }
.mock__avatar { width: 36px; height: 36px; border-radius: 11px; background: var(--accent); color: #fff; display: grid; place-items: center; font-family: "Space Grotesk"; font-weight: 700; }
.mock__bot-head strong { display: block; font-size: 0.92rem; }
.mock__bot-head em { font-style: normal; font-size: 0.72rem; color: #36b37e; }
.mock__chat { display: flex; flex-direction: column; gap: 8px; padding-top: 14px; }
.bubble {
  font-size: 0.82rem; padding: 9px 13px; border-radius: 14px; max-width: 82%;
}
.bubble--in { background: var(--wash); color: var(--ink); border-bottom-left-radius: 4px; align-self: flex-start; }
.bubble--out { background: var(--accent); color: #fff; border-bottom-right-radius: 4px; align-self: flex-end; }
.bubble.typing { display: inline-flex; gap: 4px; align-items: center; }
.bubble.typing i { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); opacity: .5; animation: blink 1.4s infinite; }
.bubble.typing i:nth-child(2) { animation-delay: .2s; }
.bubble.typing i:nth-child(3) { animation-delay: .4s; }
@keyframes blink { 0%,60%,100% { opacity:.3; transform: translateY(0);} 30% { opacity:1; transform: translateY(-3px);} }

/* ---------- marquee ---------- */
.marquee { border-block: 1px solid var(--hairline); background: var(--surface); overflow: hidden; padding: 18px 0; }
.marquee__track { display: flex; gap: 28px; white-space: nowrap; width: max-content; animation: scroll 28s linear infinite; }
.marquee__track span { font-family: "Space Grotesk"; font-size: 1.05rem; font-weight: 500; color: var(--ink); }
.marquee__track .dot { color: var(--accent); }
@keyframes scroll { to { transform: translateX(-50%); } }

/* ---------- bento services ---------- */
.bento { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.card {
  background: var(--surface); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 30px; box-shadow: var(--shadow-sm); position: relative; overflow: hidden;
  transition: transform .35s var(--ease), box-shadow .35s var(--ease), border-color .35s;
  will-change: transform;
}
.card:hover { box-shadow: var(--shadow); border-color: #d6e0f3; }
.card--lg { grid-column: span 2; }
.card--accent { background: linear-gradient(155deg, var(--wash), #fff); }
.card__icon {
  display: grid; place-items: center; width: 48px; height: 48px; border-radius: 14px;
  background: var(--wash); color: var(--accent); margin-bottom: 18px;
}
.card__icon svg { width: 24px; height: 24px; }
.card h3 { font-size: 1.25rem; font-weight: 600; letter-spacing: -0.01em; margin-bottom: 8px; }
.card p { color: var(--muted); font-size: 0.95rem; }
.tags { display: flex; gap: 8px; margin-top: 18px; flex-wrap: wrap; }
.tags li { font-size: 0.78rem; color: var(--accent); background: var(--wash); padding: 5px 12px; border-radius: 999px; font-weight: 500; }

/* ---------- process ---------- */
.steps { display: grid; grid-template-columns: repeat(4, 1fr); gap: 18px; counter-reset: step; }
.step {
  position: relative; padding: 28px 24px; border-radius: var(--radius);
  background: var(--surface); border: 1px solid var(--hairline);
  transition: transform .35s var(--ease);
}
.step:hover { transform: translateY(-6px); }
.step__num {
  font-family: "Space Grotesk"; font-size: 1.6rem; font-weight: 700; color: var(--accent);
  display: block; margin-bottom: 14px;
}
.step h3 { font-size: 1.1rem; font-weight: 600; margin-bottom: 6px; }
.step p { font-size: 0.9rem; color: var(--muted); }

/* ---------- work ---------- */
.work__grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.project {
  border-radius: var(--radius-lg); overflow: hidden; background: var(--surface);
  border: 1px solid var(--hairline); box-shadow: var(--shadow-sm);
  transition: transform .4s var(--ease), box-shadow .4s var(--ease); will-change: transform;
}
.project:hover { box-shadow: var(--shadow); }
.project__visual { height: 220px; position: relative; display: grid; place-items: center; overflow: hidden; }
.project__visual::after {
  content: ""; position: absolute; inset: 0;
  background-image: radial-gradient(rgba(255,255,255,0.4) 1px, transparent 1px);
  background-size: 18px 18px; opacity: .5;
}
.project__visual--1 { background: linear-gradient(150deg, #cfe0ff, #eef4ff); }
.project__visual--2 { background: linear-gradient(150deg, #3B6FE0, #6E9BFF); }
.project__visual--3 { background: linear-gradient(150deg, #dfe9ff, #c4d6ff); }
.project__tag {
  position: relative; z-index: 1; font-size: 0.8rem; font-weight: 600; color: var(--ink);
  background: rgba(255,255,255,0.85); padding: 7px 16px; border-radius: 999px;
  backdrop-filter: blur(6px);
}
.project__visual--2 .project__tag { color: var(--accent); }
.project__meta { padding: 22px 24px; }
.project__meta h3 { font-size: 1.2rem; font-weight: 600; margin-bottom: 4px; }
.project__meta p { color: var(--muted); font-size: 0.9rem; }

/* ---------- stats ---------- */
.stats__inner {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 24px;
  background: var(--ink); border-radius: var(--radius-lg);
  padding: clamp(36px, 5vw, 56px); color: #fff; position: relative; overflow: hidden;
}
.stats__inner::before {
  content: ""; position: absolute; top: -40%; right: -10%; width: 50%; height: 180%;
  background: radial-gradient(circle, rgba(110,155,255,0.35), transparent 70%);
}
.stat { position: relative; }
.stat strong { font-family: "Space Grotesk"; font-size: clamp(2.2rem, 4.5vw, 3.2rem); font-weight: 700; display: block; letter-spacing: -0.02em; }
.stat span { color: #9fb2cc; font-size: 0.9rem; }

/* ---------- cta ---------- */
.cta { max-width: var(--maxw); margin: 0 auto; padding: 0 clamp(20px,5vw,40px) clamp(72px,10vw,120px); }
.cta__card {
  background: linear-gradient(160deg, var(--wash), #fff);
  border: 1px solid var(--hairline); border-radius: var(--radius-lg);
  padding: clamp(48px, 7vw, 88px); text-align: center; box-shadow: var(--shadow);
}
.cta__card h2 { font-size: clamp(1.7rem, 3.6vw, 2.6rem); font-weight: 600; letter-spacing: -0.02em; margin: 16px auto 32px; max-width: 18em; line-height: 1.18; }
.cta__actions { display: flex; gap: 14px; justify-content: center; flex-wrap: wrap; }

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--hairline); background: var(--surface); }
.footer__inner {
  max-width: var(--maxw); margin: 0 auto; padding: 40px clamp(20px,5vw,40px);
  display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}
.footer__note { color: var(--accent); font-weight: 500; font-size: 0.9rem; }
.footer__copy { color: var(--faint); font-size: 0.85rem; }

/* ---------- reveal animation ---------- */
.reveal { opacity: 0; transform: translateY(26px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
.reveal.is-in { opacity: 1; transform: none; }

/* ---------- mobile menu (hidden on desktop) ---------- */
.nav__burger {
  display: none; flex-direction: column; gap: 5px; justify-content: center;
  width: 44px; height: 44px; border: 1px solid var(--hairline); border-radius: 12px;
  background: var(--surface); cursor: pointer; padding: 0; flex: none;
}
.nav__burger span {
  display: block; width: 20px; height: 2px; margin: 0 auto; border-radius: 2px;
  background: var(--ink); transition: transform .3s var(--ease), opacity .25s;
}
.nav__burger[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav__burger[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav__burger[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

.mobile-menu {
  position: fixed; inset: 0; z-index: 45;
  background: rgba(251,252,254,0.92);
  backdrop-filter: blur(20px); -webkit-backdrop-filter: blur(20px);
  display: flex; flex-direction: column; justify-content: center; align-items: stretch;
  gap: 24px; padding: 96px clamp(24px, 8vw, 48px) 48px;
  opacity: 0; transform: translateY(-12px); pointer-events: none;
  transition: opacity .35s var(--ease), transform .35s var(--ease);
}
.mobile-menu.is-open { opacity: 1; transform: none; pointer-events: auto; }
.mobile-menu__links { display: flex; flex-direction: column; gap: 4px; }
.mobile-menu__links a {
  font-family: "Space Grotesk"; font-size: 1.8rem; font-weight: 600; letter-spacing: -0.02em;
  padding: 12px 0; border-bottom: 1px solid var(--hairline); color: var(--ink);
  transition: color .25s, padding-left .25s var(--ease);
}
.mobile-menu__links a:hover, .mobile-menu__links a:active { color: var(--accent); padding-left: 8px; }
.mobile-menu__cta { margin-top: 12px; width: 100%; padding: 16px; font-size: 1rem; }

/* lock scroll when menu open */
body.menu-open { overflow: hidden; }

/* ---------- responsive ---------- */
@media (max-width: 980px) {
  .hero__inner { grid-template-columns: 1fr; }
  .hero__stage { min-height: 360px; max-width: 460px; margin-top: 8px; }
  .bento, .work__grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .stats__inner { grid-template-columns: 1fr 1fr; gap: 32px 24px; }
  .card--lg { grid-column: span 2; }
  .nav__links, .nav__cta { display: none; }
  .nav__burger { display: flex; }
}

@media (max-width: 680px) {
  /* tighter horizontal padding on phones */
  .section { padding: clamp(56px, 14vw, 80px) 20px; }
  .hero { padding: 32px 20px 48px; }
  .cta { padding: 0 20px 72px; }

  .hero__inner { gap: 28px; }
  .hero__title { font-size: clamp(2.2rem, 11vw, 3.2rem); }
  .hero__actions { gap: 12px; }
  .hero__actions .btn { flex: 1 1 auto; justify-content: center; }
  .hero__stage { min-height: 300px; max-width: 100%; }

  .bento, .steps, .work__grid { grid-template-columns: 1fr; gap: 14px; }
  .card--lg { grid-column: span 1; }
  .card { padding: 26px; }
  .work__grid { gap: 16px; }
  .project__visual { height: 190px; }

  .stats__inner { grid-template-columns: 1fr 1fr; padding: 36px 28px; gap: 28px 20px; }

  .footer__inner { flex-direction: column; align-items: flex-start; gap: 10px; }
}

@media (max-width: 420px) {
  .hero__meta { flex-wrap: wrap; gap: 14px 20px; }
  .hero__meta-div { display: none; }
  .hero__meta strong { font-size: 1.3rem; }
  .stats__inner { grid-template-columns: 1fr; gap: 24px; text-align: left; }
  .mobile-menu__links a { font-size: 1.5rem; }
}

/* phones in landscape / short screens: center menu differently */
@media (max-width: 980px) and (max-height: 520px) {
  .mobile-menu { justify-content: flex-start; padding-top: 88px; overflow-y: auto; }
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; scroll-behavior: auto !important; }
  .reveal { opacity: 1; transform: none; }
}

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