/* Code4U — premium dark studio. Layout: centered statement hero → tilted PANDA showcase → capability marquee → bento services → case study → timeline → WhatsApp CTA. */
:root {
  --bg: #07080a;
  --bg-2: #0d0f13;
  --surface: #12151a;
  --surface-2: #181c22;
  --line: rgba(255, 255, 255, 0.08);
  --line-2: rgba(255, 255, 255, 0.14);
  --text: #f3f1ee;
  --muted: #9b9a97;
  --dim: #63625f;
  --accent: #ff5a3c;
  --accent-2: #ffb08f;
  --wa: #25d366;

  --f-display: 'Alexandria', 'IBM Plex Sans Arabic', Tahoma, sans-serif;
  --f-body: 'IBM Plex Sans Arabic', 'Segoe UI', Tahoma, sans-serif;
  --f-mono: 'IBM Plex Mono', ui-monospace, Menlo, Consolas, monospace;

  --ease: cubic-bezier(.2, .7, .1, 1);
  color-scheme: dark;
}

*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; padding: 0; }
html { scroll-behavior: smooth; background: var(--bg); }

body {
  font-family: var(--f-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}
body::before {
  content: "";
  position: fixed;
  inset: 0 0 auto;
  height: env(safe-area-inset-top, 0px);
  z-index: 60;
  background: var(--bg);
}
/* film grain */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 100;
  opacity: .05;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 4px; border-radius: 6px; }
::selection { background: var(--accent); color: #0b0b0b; }

.container {
  max-width: 1200px;
  margin-inline: auto;
  padding-left: max(20px, env(safe-area-inset-left, 0px));
  padding-right: max(20px, env(safe-area-inset-right, 0px));
}
.gold {
  background: linear-gradient(100deg, var(--accent) 10%, var(--accent-2) 50%, var(--accent) 90%);
  background-size: 200% 100%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: sheen 6s var(--ease) infinite;
}
@keyframes sheen { 0%, 100% { background-position: 0% 0; } 50% { background-position: 100% 0; } }

/* ---------- header ---------- */
.header {
  position: fixed;
  top: env(safe-area-inset-top, 0px);
  inset-inline: 0;
  z-index: 50;
  padding-block: 16px;
  transition: padding .4s var(--ease);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  height: 62px;
  padding-inline: 10px 22px;
  border: 1px solid transparent;
  border-radius: 16px;
  transition: background .4s var(--ease), border-color .4s var(--ease), backdrop-filter .4s;
}
.header.scrolled { padding-block: 10px; }
.header.scrolled .header-inner {
  background: rgba(13, 15, 19, .72);
  border-color: var(--line);
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
}
.logo { display: flex; align-items: center; gap: 10px; direction: ltr; }
.logo-box {
  width: 38px; height: 38px;
  display: grid; place-items: center;
  border-radius: 10px;
  background: linear-gradient(140deg, var(--accent), #c8381f);
  color: #0b0b0b;
  font-family: var(--f-mono);
  font-weight: 700;
  font-size: 14px;
  box-shadow: 0 6px 24px -6px rgba(255, 90, 60, .6);
}
.logo-text { font-family: var(--f-display); font-weight: 800; font-size: 19px; letter-spacing: .06em; }
.logo-text span { color: var(--accent); }

.nav { display: flex; align-items: center; gap: 30px; }
.nav a { font-size: 15px; color: var(--muted); transition: color .25s; }
.nav a:hover { color: var(--text); }
.btn-wa-sm {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 9px 16px;
  border-radius: 10px;
  background: var(--text);
  color: #0b0b0b !important;
  font-weight: 600;
  transition: transform .25s var(--ease), background .25s;
}
.btn-wa-sm:hover { transform: translateY(-1px); background: #fff; }
.btn-wa-sm svg { width: 17px; height: 17px; color: #128c4a; }

.menu-btn {
  display: none;
  width: 42px; height: 42px;
  border-radius: 10px;
  border: 1px solid var(--line-2);
  background: rgba(255,255,255,.03);
  color: var(--text);
  place-items: center;
  cursor: pointer;
}
.menu-btn svg { width: 20px; height: 20px; }

/* ---------- hero ---------- */
.hero {
  position: relative;
  padding-top: calc(170px + env(safe-area-inset-top, 0px));
  padding-bottom: 40px;
  text-align: center;
  isolation: isolate;
}
.hero-glow {
  position: absolute;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  pointer-events: none;
}
.hero-glow::before {
  content: "";
  position: absolute;
  width: 900px; height: 900px;
  max-width: 160vw;
  top: -420px; left: 50%;
  transform: translateX(-50%);
  background: radial-gradient(closest-side, rgba(255, 90, 60, .32), rgba(255, 90, 60, .08) 55%, transparent);
  filter: blur(10px);
  animation: breathe 9s ease-in-out infinite;
}
.hero-glow::after {
  content: "";
  position: absolute; inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 72px 72px;
  background-position: center top;
  mask-image: radial-gradient(ellipse 70% 55% at 50% 0%, #000 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 55% at 50% 0%, #000 20%, transparent 75%);
}
@keyframes breathe { 0%, 100% { opacity: .85; transform: translateX(-50%) scale(1); } 50% { opacity: 1; transform: translateX(-50%) scale(1.06); } }

.badge {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 6px 16px 6px 8px;
  border: 1px solid var(--line-2);
  background: rgba(255,255,255,.03);
  border-radius: 99px;
  font-size: 14px;
  color: var(--muted);
  margin-bottom: 30px;
  backdrop-filter: blur(6px);
}
.badge b {
  font-weight: 600;
  font-size: 12px;
  color: #0b0b0b;
  background: var(--accent);
  padding: 2px 10px;
  border-radius: 99px;
}
.hero h1 {
  font-family: var(--f-display);
  font-weight: 800;
  font-size: clamp(40px, 7.4vw, 92px);
  line-height: 1.15;
  letter-spacing: -0.01em;
  text-wrap: balance;
  max-width: 13em;
  margin-inline: auto;
}
.hero-sub {
  max-width: 36em;
  margin: 26px auto 40px;
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--muted);
}
.hero-cta { display: flex; justify-content: center; gap: 14px; flex-wrap: wrap; }

.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 10px;
  padding: 15px 30px;
  border-radius: 14px;
  font-weight: 600;
  font-size: 16px;
  border: 1px solid transparent;
  transition: transform .3s var(--ease), box-shadow .3s var(--ease), background .3s, border-color .3s;
}
.btn svg { width: 20px; height: 20px; }
.btn-primary {
  background: linear-gradient(140deg, var(--accent), #e2401f);
  color: #0b0b0b;
  box-shadow: 0 12px 40px -12px rgba(255, 90, 60, .7), inset 0 1px 0 rgba(255,255,255,.35);
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 18px 50px -12px rgba(255, 90, 60, .85), inset 0 1px 0 rgba(255,255,255,.35); }
.btn-ghost { border-color: var(--line-2); color: var(--text); background: rgba(255,255,255,.02); }
.btn-ghost:hover { border-color: rgba(255,255,255,.35); transform: translateY(-2px); }

/* hero showcase */
.showcase {
  margin-top: 80px;
  perspective: 1600px;
}
.frame {
  position: relative;
  max-width: 1080px;
  margin-inline: auto;
  border-radius: 18px;
  padding: 10px;
  background: linear-gradient(180deg, rgba(255,255,255,.12), rgba(255,255,255,.02));
  box-shadow:
    0 0 0 1px rgba(255,255,255,.06),
    0 50px 120px -40px rgba(255, 90, 60, .45),
    0 30px 80px -30px rgba(0,0,0,.9);
  transform: rotateX(var(--tilt, 14deg)) scale(var(--sc, .96));
  transform-origin: center top;
  transition: transform .15s linear;
}
.frame-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 4px 8px 12px;
  direction: ltr;
}
.frame-bar i { width: 10px; height: 10px; border-radius: 50%; background: rgba(255,255,255,.14); }
.frame-bar span {
  margin-inline: auto;
  font-family: var(--f-mono);
  font-size: 12px;
  color: var(--dim);
  background: rgba(0,0,0,.3);
  padding: 2px 14px;
  border-radius: 6px;
}
.frame img { border-radius: 10px; width: 100%; }
.showcase-fade {
  height: 120px;
  margin-top: -120px;
  position: relative;
  background: linear-gradient(to bottom, transparent, var(--bg));
  pointer-events: none;
}

/* ---------- marquee ---------- */
.marquee {
  border-block: 1px solid var(--line);
  padding-block: 22px;
  overflow: hidden;
  mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
  -webkit-mask-image: linear-gradient(90deg, transparent, #000 12%, #000 88%, transparent);
}
.marquee-track {
  display: flex;
  width: max-content;
  gap: 48px;
  animation: slide 38s linear infinite;
  direction: ltr;
}
.marquee-track span {
  font-family: var(--f-display);
  font-size: 22px;
  font-weight: 500;
  color: var(--dim);
  white-space: nowrap;
  display: inline-flex; align-items: center; gap: 48px;
}
.marquee-track span::after { content: "✦"; font-size: 14px; color: var(--accent); }
@keyframes slide { to { transform: translateX(-50%); } }

/* ---------- sections ---------- */
section { padding-block: 130px; position: relative; }
.head { max-width: 680px; margin-bottom: 60px; }
.head.center { margin-inline: auto; text-align: center; }
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 14px;
  font-weight: 500;
  color: var(--accent);
  margin-bottom: 16px;
}
.eyebrow::before { content: ""; width: 26px; height: 1px; background: currentColor; }
.head.center .eyebrow::after { content: ""; width: 26px; height: 1px; background: currentColor; }
.title {
  font-family: var(--f-display);
  font-size: clamp(32px, 4.6vw, 56px);
  font-weight: 700;
  line-height: 1.2;
  text-wrap: balance;
}
.lead { color: var(--muted); font-size: 18px; margin-top: 16px; }

/* ---------- services bento ---------- */
.bento {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
}
.cell {
  --x: 50%; --y: 0%;
  position: relative;
  min-width: 0;
  padding: 34px 32px;
  border-radius: 22px;
  background: var(--surface);
  border: 1px solid var(--line);
  overflow: hidden;
  isolation: isolate;
  transition: border-color .3s, transform .4s var(--ease);
}
.cell::before {
  content: "";
  position: absolute; inset: 0;
  z-index: -1;
  background: radial-gradient(420px circle at var(--x) var(--y), rgba(255, 90, 60, .14), transparent 60%);
  opacity: 0;
  transition: opacity .35s;
}
.cell:hover { border-color: var(--line-2); }
.cell:hover::before { opacity: 1; }
.cell.c-4 { grid-column: span 4; }
.cell.c-2 { grid-column: span 2; }
.cell.c-3 { grid-column: span 3; }
.cell-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  display: grid; place-items: center;
  background: linear-gradient(160deg, rgba(255,90,60,.2), rgba(255,90,60,.04));
  border: 1px solid rgba(255,90,60,.25);
  color: var(--accent);
  margin-bottom: 26px;
}
.cell-icon svg { width: 24px; height: 24px; }
.cell h3 { font-family: var(--f-display); font-size: 23px; font-weight: 600; margin-bottom: 10px; }
.cell p { color: var(--muted); font-size: 16px; max-width: 34em; }
.cell-tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 22px; }
.cell-tags span {
  font-size: 13px;
  color: var(--text);
  border: 1px solid var(--line-2);
  background: rgba(255,255,255,.02);
  padding: 4px 12px;
  border-radius: 99px;
}
/* decorative chat bubbles in automation cell */
.chat { display: grid; gap: 8px; margin-top: 24px; max-width: 320px; }
.chat div { font-size: 14px; padding: 8px 14px; border-radius: 14px; width: fit-content; max-width: 100%; }
.chat .in { background: var(--surface-2); border: 1px solid var(--line); border-start-start-radius: 4px; }
.chat .out { background: rgba(37,211,102,.12); border: 1px solid rgba(37,211,102,.25); color: #c9f5d9; justify-self: end; border-start-end-radius: 4px; }
.chat small { display: block; font-size: 11px; color: var(--dim); font-family: var(--f-mono); direction: ltr; text-align: left; }

/* ---------- case study ---------- */
.case {
  display: grid;
  grid-template-columns: 1fr 1.25fr;
  gap: 0;
  border-radius: 28px;
  border: 1px solid var(--line);
  background:
    radial-gradient(700px 400px at 100% 0%, rgba(255,90,60,.12), transparent 60%),
    var(--surface);
  overflow: hidden;
}
.case-body { padding: 56px 52px; min-width: 0; display: flex; flex-direction: column; gap: 22px; justify-content: center; }
.case-label { font-family: var(--f-mono); font-size: 13px; color: var(--accent); direction: ltr; text-align: right; letter-spacing: .08em; }
.case-title { font-family: var(--f-display); font-size: clamp(30px, 3.6vw, 44px); font-weight: 700; line-height: 1.2; }
.case-title small { display: block; font-size: .5em; font-weight: 400; color: var(--muted); margin-top: 8px; }
.case-body > p { color: var(--muted); font-size: 17px; }
.features { list-style: none; display: grid; grid-template-columns: 1fr 1fr; gap: 1px; background: var(--line); border: 1px solid var(--line); border-radius: 16px; overflow: hidden; }
.features li { background: var(--surface); padding: 16px 18px; font-size: 15px; display: grid; gap: 2px; }
.features li b { font-family: var(--f-display); font-weight: 600; font-size: 16px; }
.features li span { color: var(--muted); font-size: 14px; line-height: 1.6; }
.stack { display: flex; flex-wrap: wrap; gap: 8px; direction: ltr; justify-content: flex-end; }
.stack span { font-family: var(--f-mono); font-size: 12.5px; color: var(--muted); border: 1px solid var(--line-2); padding: 3px 10px; border-radius: 8px; }
.case-shot { min-width: 0; position: relative; padding: 56px 0 56px 0; display: flex; align-items: center; }
.case-shot img {
  width: 135%;
  max-width: none;
  border-radius: 0 14px 14px 0;
  border: 1px solid var(--line-2);
  border-left: 0;
  box-shadow: 0 40px 90px -30px rgba(0,0,0,.9);
}
.case-shot { overflow: hidden; justify-content: flex-start; }

/* ---------- process ---------- */
.timeline { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: s; }
.timeline li {
  counter-increment: s;
  position: relative;
  padding: 30px 26px 32px;
  border-radius: 20px;
  border: 1px solid var(--line);
  background: linear-gradient(180deg, var(--surface), transparent);
  min-width: 0;
}
.timeline li::before {
  content: "0" counter(s);
  display: block;
  font-family: var(--f-mono);
  font-size: 13px;
  color: var(--accent);
  margin-bottom: 40px;
  letter-spacing: .1em;
}
.timeline li::after {
  content: "";
  position: absolute;
  top: 40px; inset-inline-start: 62px; inset-inline-end: 26px;
  height: 1px;
  background: linear-gradient(to left, var(--line-2), transparent);
}
.timeline h3 { font-family: var(--f-display); font-size: 21px; font-weight: 600; margin-bottom: 8px; }
.timeline p { color: var(--muted); font-size: 15px; }

/* ---------- promise ---------- */
.promise { padding-block: 40px 130px; }
.promise-grid { display: grid; grid-template-columns: repeat(3, 1fr); border-top: 1px solid var(--line); }
.promise-grid div { padding: 34px 28px 0 28px; border-inline-start: 1px solid var(--line); min-width: 0; }
.promise-grid div:first-child { border-inline-start: 0; padding-inline-start: 0; }
.promise-grid b { display: block; font-family: var(--f-display); font-size: 21px; font-weight: 600; margin-bottom: 8px; }
.promise-grid p { color: var(--muted); font-size: 15px; }

/* ---------- CTA ---------- */
.cta { padding-block: 40px 140px; }
.cta-box {
  position: relative;
  overflow: hidden;
  text-align: center;
  border-radius: 32px;
  padding: 100px 28px;
  border: 1px solid rgba(255,90,60,.25);
  background:
    radial-gradient(600px 300px at 50% 120%, rgba(255,90,60,.35), transparent 70%),
    radial-gradient(400px 200px at 50% -20%, rgba(255,176,143,.12), transparent 70%),
    var(--bg-2);
  isolation: isolate;
}
.cta-box::before {
  content: "";
  position: absolute; inset: 0; z-index: -1;
  background-image: radial-gradient(rgba(255,255,255,.08) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: radial-gradient(ellipse at center, #000, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse at center, #000, transparent 70%);
}
.cta-box .title { max-width: 14em; margin-inline: auto; }
.cta-box .lead { max-width: 32em; margin: 18px auto 40px; }
.btn-wa {
  background: var(--wa);
  color: #052e16;
  font-size: 18px;
  padding: 18px 34px;
  box-shadow: 0 16px 50px -14px rgba(37, 211, 102, .65), inset 0 1px 0 rgba(255,255,255,.4);
}
.btn-wa:hover { transform: translateY(-2px); box-shadow: 0 22px 60px -14px rgba(37, 211, 102, .8), inset 0 1px 0 rgba(255,255,255,.4); }
.btn-wa svg { width: 24px; height: 24px; }
.phone {
  display: block;
  margin-top: 22px;
  font-family: var(--f-mono);
  font-size: 15px;
  color: var(--muted);
  direction: ltr;
  letter-spacing: .06em;
  user-select: all;
}

/* ---------- footer ---------- */
.footer { border-top: 1px solid var(--line); padding-block: 30px calc(30px + env(safe-area-inset-bottom, 0px)); color: var(--dim); font-size: 14px; }
.footer-inner { display: flex; justify-content: space-between; align-items: center; gap: 16px; flex-wrap: wrap; }
.footer a { direction: ltr; font-family: var(--f-mono); transition: color .2s; }
.footer a:hover { color: var(--text); }

/* floating WhatsApp */
.wa-float {
  position: fixed;
  z-index: 55;
  bottom: calc(22px + env(safe-area-inset-bottom, 0px));
  left: calc(22px + env(safe-area-inset-left, 0px));
  width: 58px; height: 58px;
  border-radius: 50%;
  display: grid; place-items: center;
  background: var(--wa);
  color: #052e16;
  box-shadow: 0 12px 30px -8px rgba(37,211,102,.6);
  transition: transform .3s var(--ease), opacity .3s;
}
.wa-float:hover { transform: scale(1.07); }
.wa-float svg { width: 28px; height: 28px; }
.wa-float::after {
  content: ""; position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid var(--wa);
  animation: ring 2.4s ease-out infinite;
}
@keyframes ring { from { transform: scale(1); opacity: .7; } to { transform: scale(1.6); opacity: 0; } }

/* ---------- reveal (only when JS is on and element starts below the fold) ---------- */
.js .reveal.pending { opacity: 0; transform: translateY(28px); }
.reveal { transition: opacity .9s var(--ease), transform .9s var(--ease); }

/* hero intro */
.hero .intro { animation: rise 1s var(--ease) both; }
.hero .intro:nth-child(2) { animation-delay: .08s; }
.hero .intro:nth-child(3) { animation-delay: .16s; }
.hero .intro:nth-child(4) { animation-delay: .24s; }
@keyframes rise { from { opacity: 0; transform: translateY(18px); } to { opacity: 1; transform: none; } }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation: none !important; transition: none !important; }
  .js .reveal.pending { opacity: 1; transform: none; }
  .frame { transform: none; }
}

/* ---------- responsive ---------- */
@media (max-width: 1000px) {
  .bento { grid-template-columns: 1fr 1fr; }
  .cell.c-4, .cell.c-3 { grid-column: span 2; }
  .cell.c-2 { grid-column: span 1; }
  .case { grid-template-columns: 1fr; }
  .case-body { padding: 44px 32px 10px; }
  .case-shot { padding: 30px 0 0 0; padding-inline-start: 32px; }
  .case-shot img { width: 100%; max-width: 100%; border-radius: 0 14px 0 0; border-bottom: 0; }
  .timeline { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 760px) {
  section { padding-block: 90px; }
  .menu-btn { display: grid; }
  .header-inner { padding-inline: 10px 10px; }
  .nav {
    position: absolute;
    top: calc(100% - 6px);
    inset-inline: max(20px, env(safe-area-inset-left, 0px));
    flex-direction: column; align-items: stretch; gap: 2px;
    padding: 12px;
    border-radius: 16px;
    background: rgba(13, 15, 19, .96);
    border: 1px solid var(--line-2);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    display: none;
  }
  .header.open .nav { display: flex; }
  .header.open .header-inner { background: rgba(13, 15, 19, .9); border-color: var(--line); }
  .nav a { padding: 12px 10px; font-size: 16px; color: var(--text); }
  .btn-wa-sm { justify-content: center; margin-top: 6px; padding: 12px; }
  .hero { padding-top: calc(130px + env(safe-area-inset-top, 0px)); }
  .showcase { margin-top: 56px; }
  .frame { padding: 6px; border-radius: 12px; }
  .frame-bar { padding-bottom: 8px; }
  .bento { grid-template-columns: 1fr; }
  .cell.c-4, .cell.c-3, .cell.c-2 { grid-column: auto; }
  .cell { padding: 28px 24px; }
  .case-body { padding: 36px 24px 6px; }
  .case-shot { padding-inline-start: 24px; }
  .features { grid-template-columns: 1fr; }
  .timeline { grid-template-columns: 1fr; }
  .promise-grid { grid-template-columns: 1fr; }
  .promise-grid div { border-inline-start: 0; padding: 26px 0 0; }
  .promise-grid div + div { border-top: 1px solid var(--line); margin-top: 26px; }
  .cta-box { padding: 70px 22px; border-radius: 24px; }
  .btn-wa { width: 100%; max-width: 360px; }
  .wa-float { width: 52px; height: 52px; }
}