/* ============================================================
   otai.io restrained business-services design system
   Brand: green #478a67 / amber accent #f2a93b
   ============================================================ */

:root {
  --green:        #478a67;
  --green-dark:   #35694f;
  --green-deep:   #223f30;
  --amber:        #f2a93b;
  --amber-dark:   #d98f22;

  --ink:          #1b241f;
  --body:         #40514a;
  --muted:        #6d7d74;
  --line:         #e2e9e4;
  --line-soft:    #eef2ef;

  --bg:           #ffffff;
  --bg-soft:      #f6f8f6;
  --bg-green:     #f0f5f1;

  --maxw:         1140px;
  --gutter:       clamp(20px, 5vw, 48px);
  --radius:       14px;
  --radius-sm:    9px;

  --shadow:       0 1px 2px rgba(27,36,31,.04), 0 8px 30px rgba(27,36,31,.06);
  --shadow-lg:    0 24px 60px rgba(27,36,31,.12);

  --font-sans:    "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-head:    "Space Grotesk", var(--font-sans);

  --ease:         cubic-bezier(.22,.61,.36,1);
}

/* ---------- reset-ish ---------- */
*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: var(--font-sans);
  color: var(--body);
  background: var(--bg);
  line-height: 1.65;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
img, video { max-width: 100%; display: block; }
a { color: var(--green-dark); text-decoration: none; transition: color .2s var(--ease); }
a:hover { color: var(--green); }
h1, h2, h3, h4 {
  font-family: var(--font-head);
  color: var(--ink);
  line-height: 1.1;
  margin: 0 0 .5em;
  font-weight: 700;
  letter-spacing: -.01em;
}
p { margin: 0 0 1.1em; }
::selection { background: var(--amber); color: #2a1c00; }

/* ---------- layout ---------- */
.wrap { max-width: var(--maxw); margin-inline: auto; padding-inline: var(--gutter); }
.section { padding-block: clamp(64px, 9vw, 120px); }
.section--soft { background: var(--bg-soft); }
.section--green { background: var(--bg-green); }
.narrow { max-width: 760px; }
.center { text-align: center; }

.eyebrow {
  font-family: var(--font-head);
  font-size: .78rem;
  font-weight: 600;
  letter-spacing: .16em;
  text-transform: uppercase;
  color: var(--green);
  margin: 0 0 .9em;
  display: inline-flex;
  align-items: center;
  gap: .6em;
}
.eyebrow::before {
  content: "";
  width: 26px; height: 2px;
  background: var(--amber);
  display: inline-block;
}
.center .eyebrow { justify-content: center; }

h1.display {
  font-size: clamp(2.3rem, 6vw, 4rem);
  letter-spacing: -.025em;
  font-weight: 700;
}
h2.title { font-size: clamp(1.7rem, 3.6vw, 2.6rem); }
.lede { font-size: clamp(1.08rem, 1.7vw, 1.28rem); color: var(--body); }

/* ---------- buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: .55em;
  font-family: var(--font-head);
  font-weight: 600; font-size: .98rem;
  padding: .82em 1.5em;
  border-radius: 100px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform .2s var(--ease), background .2s var(--ease), color .2s var(--ease), border-color .2s var(--ease);
  white-space: nowrap;
}
.btn:hover { transform: translateY(-2px); }
.btn-primary { background: var(--green); color: #fff; }
.btn-primary:hover { background: var(--green-dark); color: #fff; }
.btn-ghost { background: transparent; border-color: var(--line); color: var(--ink); }
.btn-ghost:hover { border-color: var(--green); color: var(--green-dark); }
.btn-amber { background: var(--amber); color: #2a1c00; }
.btn-amber:hover { background: var(--amber-dark); color: #2a1c00; }
.btn-lg { padding: 1em 1.8em; font-size: 1.05rem; }
.arrow { transition: transform .2s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255,255,255,.86);
  backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--line-soft);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; height: 74px;
}
.brand { display: inline-flex; align-items: center; }
.brand img { height: 34px; width: auto; }
.nav { display: flex; align-items: center; gap: 4px; }
.nav a {
  font-family: var(--font-head);
  font-weight: 500; font-size: .96rem;
  color: var(--ink);
  padding: .5em .85em; border-radius: 8px;
  transition: background .18s var(--ease), color .18s var(--ease);
}
.nav a:hover, .nav a[aria-current="page"] { background: var(--bg-green); color: var(--green-dark); }
.nav__actions { display: flex; align-items: center; gap: 12px; }
.lang {
  font-family: var(--font-head); font-weight: 600; font-size: .9rem;
  border: 1.5px solid var(--line); border-radius: 100px;
  padding: .4em .9em; color: var(--ink);
}
.lang:hover { border-color: var(--green); color: var(--green-dark); }
.nav-toggle {
  display: none; width: 44px; height: 44px; border: 0; background: transparent;
  cursor: pointer; align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle span::before, .nav-toggle span::after {
  content: ""; display: block; width: 22px; height: 2px; background: var(--ink);
  position: relative; transition: transform .25s var(--ease), opacity .2s;
}
.nav-toggle span::before { position: absolute; top: -7px; }
.nav-toggle span::after  { position: absolute; top: 7px; }
body.nav-open .nav-toggle span { background: transparent; }
body.nav-open .nav-toggle span::before { transform: translateY(7px) rotate(45deg); }
body.nav-open .nav-toggle span::after  { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: inline-flex; }
  .nav {
    position: fixed; inset: 74px 0 auto 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: #fff; border-bottom: 1px solid var(--line);
    padding: 12px var(--gutter) 24px;
    transform: translateY(-120%); transition: transform .32s var(--ease);
    box-shadow: var(--shadow-lg);
  }
  body.nav-open .nav { transform: translateY(0); }
  .nav a { padding: .85em .4em; font-size: 1.05rem; border-radius: 0; border-bottom: 1px solid var(--line-soft); }
  .nav a:last-child { border-bottom: 0; }
}

/* ---------- "more" dropdown ---------- */
.nav__more { position: relative; display: flex; align-items: center; }
.nav__more-btn {
  font-family: var(--font-head); font-weight: 500; font-size: .96rem;
  color: var(--ink); background: transparent; border: 0; cursor: pointer;
  padding: .5em .8em; border-radius: 8px; line-height: 1;
  display: inline-flex; align-items: center;
  transition: background .18s var(--ease), color .18s var(--ease);
}
.nav__more-btn:hover, .nav__more:hover .nav__more-btn,
.nav__more.open .nav__more-btn, .nav__more-btn.is-active {
  background: var(--bg-green); color: var(--green-dark);
}
.nav__dots { font-size: 1.35rem; letter-spacing: .06em; line-height: 0; position: relative; top: -.16em; }
.nav__menu {
  position: absolute; top: calc(100% + 8px); right: 0;
  min-width: 205px; padding: 8px;
  background: #fff; border: 1px solid var(--line); border-radius: 12px;
  box-shadow: var(--shadow-lg);
  display: flex; flex-direction: column; gap: 2px;
  opacity: 0; visibility: hidden; transform: translateY(6px);
  transition: opacity .18s var(--ease), transform .18s var(--ease), visibility .18s;
  z-index: 60;
}
.nav__more:hover .nav__menu, .nav__more.open .nav__menu { opacity: 1; visibility: visible; transform: none; }
.nav__menu a {
  font-family: var(--font-head); font-weight: 500; font-size: .95rem;
  padding: .58em .7em; border-radius: 8px; white-space: nowrap; color: var(--ink);
}
.nav__menu a:hover, .nav__menu a[aria-current="page"] { background: var(--bg-green); color: var(--green-dark); }

@media (max-width: 900px) {
  .nav__more { display: block; position: static; }
  .nav__more-btn { display: none; }
  .nav__menu {
    position: static; opacity: 1; visibility: visible; transform: none;
    background: transparent; border: 0; box-shadow: none; padding: 0; min-width: 0; gap: 0;
  }
  .nav__menu a {
    font-size: 1.05rem; padding: .85em .4em; border-radius: 0;
    border-bottom: 1px solid var(--line-soft); white-space: normal;
  }
  .nav__menu a:last-child { border-bottom: 0; }
}

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  min-height: min(88vh, 760px);
  display: flex; align-items: center;
  color: #fff; text-align: center;
}
.hero__media { position: absolute; inset: 0; z-index: 0; }
.hero__media video, .hero__media img { width: 100%; height: 100%; object-fit: cover; }
.hero__media::after {
  content: ""; position: absolute; inset: 0;
  background:
    linear-gradient(180deg, rgba(34,63,48,.55) 0%, rgba(34,63,48,.42) 45%, rgba(27,36,31,.78) 100%),
    linear-gradient(90deg, rgba(53,105,79,.35), rgba(34,63,48,.35));
}
.hero__inner { position: relative; z-index: 2; width: 100%; }
.hero h1 {
  color: #fff;
  font-size: clamp(2.8rem, 9vw, 6.2rem);
  font-weight: 700; text-transform: uppercase;
  letter-spacing: -.02em; line-height: .92;
  margin: 0;
  text-shadow: 0 2px 30px rgba(0,0,0,.25);
}
.hero h1 .rotator { color: var(--amber); display: inline-block; }
.hero h1 .rotator::after {
  content: "|"; color: var(--amber); font-weight: 400;
  margin-left: .04em; animation: caret 1s steps(1) infinite;
}
@keyframes caret { 50% { opacity: 0; } }
.hero__sub {
  color: rgba(255,255,255,.9);
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  max-width: 620px; margin: 1.4rem auto 2rem;
  text-shadow: 0 1px 12px rgba(0,0,0,.3);
}
.hero__cta { display: inline-flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* ---------- generic page header (non-video) ---------- */
.page-head {
  background:
    radial-gradient(1200px 400px at 80% -30%, rgba(242,169,59,.12), transparent 60%),
    linear-gradient(180deg, var(--bg-green), var(--bg));
  padding-block: clamp(64px, 10vw, 128px) clamp(40px, 6vw, 72px);
  border-bottom: 1px solid var(--line-soft);
}
.page-head h1 { font-size: clamp(2.2rem, 5vw, 3.5rem); }

/* ---------- service cards ---------- */
.grid { display: grid; gap: 26px; }
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }
@media (max-width: 860px) { .grid-3 { grid-template-columns: 1fr; } .grid-2 { grid-template-columns: 1fr; } }

.card {
  background: #fff; border: 1px solid var(--line);
  border-radius: var(--radius); padding: 34px 30px;
  box-shadow: var(--shadow);
  transition: transform .25s var(--ease), box-shadow .25s var(--ease), border-color .25s var(--ease);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); border-color: #d5e0d9; }
.card__num {
  font-family: var(--font-head); font-weight: 700;
  font-size: .82rem; letter-spacing: .12em;
  color: var(--amber-dark); margin-bottom: 18px;
}
.card__icon {
  width: 50px; height: 50px; border-radius: 12px;
  background: var(--bg-green); color: var(--green-dark);
  display: grid; place-items: center; margin-bottom: 20px;
}
.card__icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 1.32rem; margin-bottom: .5em; }
.card p { color: var(--body); margin-bottom: 0; font-size: .98rem; }
.card__tag {
  display: inline-block; margin-top: 18px;
  font-size: .82rem; color: var(--muted);
  border-top: 1px solid var(--line-soft); padding-top: 14px; width: 100%;
}
.card__tag b { color: var(--ink); font-weight: 600; }

/* ---------- connected strip ---------- */
.connect {
  border-radius: var(--radius); overflow: hidden;
  background: linear-gradient(120deg, var(--green-deep), var(--green-dark));
  color: #fff; padding: clamp(38px, 6vw, 64px);
  position: relative;
}
.connect::after {
  content: ""; position: absolute; right: -60px; top: -60px;
  width: 260px; height: 260px; border-radius: 50%;
  background: radial-gradient(circle, rgba(242,169,59,.25), transparent 70%);
}
.connect h2 { color: #fff; }
.connect p { color: rgba(255,255,255,.86); }
.connect .btn-ghost { border-color: rgba(255,255,255,.4); color: #fff; }
.connect .btn-ghost:hover { background: rgba(255,255,255,.1); border-color: #fff; color: #fff; }

/* ---------- steps / approach ---------- */
.steps { display: grid; gap: 24px; grid-template-columns: repeat(3,1fr); counter-reset: step; }
@media (max-width: 860px) { .steps { grid-template-columns: 1fr; } }
.step { padding-left: 0; }
.step__k {
  font-family: var(--font-head); font-weight: 700; color: var(--green);
  font-size: 1.6rem; display: flex; align-items: center; gap: 12px; margin-bottom: 10px;
}
.step__k::before {
  counter-increment: step; content: "0" counter(step);
  color: #fff; background: var(--green);
  font-size: .85rem; width: 34px; height: 34px; border-radius: 9px;
  display: grid; place-items: center;
}
.step h3 { font-size: 1.15rem; }
.step p { font-size: .96rem; margin: 0; }

/* ---------- prose (legal) ---------- */
.prose { max-width: 780px; }
.prose h2 { font-size: 1.35rem; margin-top: 2.2em; }
.prose h3 { font-size: 1.08rem; margin-top: 1.6em; }
.prose p, .prose li { color: var(--body); }
.prose ul { padding-left: 1.2em; }
.prose li { margin-bottom: .5em; }
.prose .updated { color: var(--muted); font-size: .92rem; }

/* ---------- contact form ---------- */
.form { display: grid; gap: 18px; }
.field { display: grid; gap: 7px; }
.field label { font-family: var(--font-head); font-weight: 500; font-size: .92rem; color: var(--ink); }
.field input, .field textarea, .field select {
  font: inherit; color: var(--ink);
  padding: .82em 1em; border: 1.5px solid var(--line);
  border-radius: var(--radius-sm); background: #fff;
  transition: border-color .18s var(--ease), box-shadow .18s var(--ease);
  width: 100%;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus, .field select:focus {
  outline: none; border-color: var(--green);
  box-shadow: 0 0 0 4px rgba(71,138,103,.14);
}
.form__note { font-size: .88rem; color: var(--muted); }
.form-status { font-size: .95rem; padding: .8em 1em; border-radius: var(--radius-sm); display: none; }
.form-status.ok { display: block; background: var(--bg-green); color: var(--green-dark); border: 1px solid #cfe1d6; }
.form-status.err { display: block; background: #fdf0ee; color: #a5432f; border: 1px solid #f3d3cc; }

.contact-grid { display: grid; grid-template-columns: 1.1fr .9fr; gap: clamp(30px, 5vw, 64px); align-items: start; }
@media (max-width: 820px) { .contact-grid { grid-template-columns: 1fr; } }
.contact-detail { margin-bottom: 22px; }
.contact-detail .k { font-family: var(--font-head); font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--green); margin-bottom: 4px; }
.contact-detail .v { color: var(--ink); font-size: 1.05rem; }

/* ---------- footer ---------- */
.site-footer { background: var(--green-deep); color: rgba(255,255,255,.72); padding-block: 64px 34px; }
.site-footer a { color: rgba(255,255,255,.8); }
.site-footer a:hover { color: #fff; }
.footer-grid { display: grid; grid-template-columns: 1.6fr 1fr 1fr 1.2fr; gap: 34px; }
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; } }
@media (max-width: 520px) { .footer-grid { grid-template-columns: 1fr; } }
.footer-brand img { height: 30px; margin-bottom: 16px; filter: brightness(0) invert(1); opacity: .95; }
.footer-brand p { font-size: .95rem; max-width: 34ch; }
.footer-col h4 { color: #fff; font-size: .82rem; letter-spacing: .1em; text-transform: uppercase; margin-bottom: 14px; font-family: var(--font-head); }
.footer-col a { display: block; padding: .28em 0; font-size: .96rem; }
.footer-bottom {
  border-top: 1px solid rgba(255,255,255,.12);
  margin-top: 44px; padding-top: 22px;
  display: flex; justify-content: space-between; gap: 14px; flex-wrap: wrap;
  font-size: .88rem;
}

/* ---------- reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity .6s var(--ease), transform .6s var(--ease); }
.reveal.in { opacity: 1; transform: none; }
@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .hero h1 .rotator::after { animation: none; }
  html { scroll-behavior: auto; }
}

/* ---------- RTL (Arabic) ---------- */
[dir="rtl"] body, [dir="rtl"] { font-family: "Cairo", var(--font-sans); }
[dir="rtl"] .eyebrow::before { margin-left: 0; }
[dir="rtl"] .btn:hover .arrow { transform: translateX(-3px); }
[dir="rtl"] .hero h1 .rotator::after { margin-left: 0; margin-right: .04em; }
[dir="rtl"] .connect::after { right: auto; left: -60px; }