/* Codiler — public site. Modern minimal, no build step. */
:root {
  --bg: #ffffff;
  --bg-soft: #f5f8fb;
  --bg-dark: #0f1c33;
  --text: #16233b;
  --text-soft: #5a6675;
  --border: #e4e8ee;
  --accent: #1b74e6;
  --accent-dark: #135ec4;
  --accent-cyan: #26b7ec;
  --accent-soft: #e7f2fd;
  --radius: 14px;
  --maxw: 1080px;
  --shadow: 0 1px 2px rgba(16, 24, 40, .04), 0 12px 32px rgba(16, 24, 40, .06);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: var(--font);
  color: var(--text);
  background: var(--bg);
  line-height: 1.65;
  font-size: 16px;
}
img { max-width: 100%; display: block; }
a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-dark); }
h1, h2, h3 { line-height: 1.2; letter-spacing: -0.02em; margin: 0 0 .4em; font-weight: 700; }
h1 { font-size: clamp(2rem, 5vw, 3.1rem); }
h2 { font-size: clamp(1.6rem, 3.5vw, 2.2rem); }
h3 { font-size: 1.15rem; }
p { margin: 0 0 1rem; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 24px; }
.section { padding: 88px 0; }
.section--soft { background: var(--bg-soft); }
.section__head { max-width: 620px; margin-bottom: 48px; }
.section__head p { color: var(--text-soft); font-size: 1.05rem; margin: 0; }
.eyebrow {
  display: inline-block; font-size: .8rem; font-weight: 600; letter-spacing: .08em;
  text-transform: uppercase; color: var(--accent); margin-bottom: 14px;
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 12px 22px; border-radius: 999px; font-weight: 600; font-size: .95rem;
  border: 1px solid transparent; cursor: pointer; transition: .15s ease;
  white-space: nowrap; text-align: center;
}
.btn--primary { background: linear-gradient(135deg, var(--accent-cyan), var(--accent)); color: #fff; }
.btn--primary:hover { background: linear-gradient(135deg, var(--accent), var(--accent-dark)); color: #fff; }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }
.btn--lg { padding: 15px 28px; font-size: 1rem; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, .85); backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
}
.site-header__inner { display: flex; align-items: center; justify-content: space-between; height: 84px; }
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; font-size: 1.15rem; color: var(--text); letter-spacing: -0.02em; }
.brand img { height: 52px; width: auto; max-width: 220px; object-fit: contain; }
.brand__mark {
  width: 30px; height: 30px; border-radius: 9px; display: grid; place-items: center;
  background: linear-gradient(135deg, var(--accent-cyan), var(--accent)); color: #fff; font-weight: 800; font-size: .95rem;
}
.nav { display: flex; align-items: center; gap: 30px; }
.nav a { color: var(--text-soft); font-weight: 500; font-size: .95rem; }
.nav a:hover { color: var(--text); }
.nav a.btn--primary, .nav a.btn--primary:hover { color: #fff; }
.nav a.btn--ghost { color: var(--text); }
.nav__cta { margin-left: 8px; }
.site-header .btn { flex: none; }
.nav-toggle { display: none; background: none; border: 0; font-size: 1.5rem; cursor: pointer; color: var(--text); }

/* Hero */
.hero { padding: 96px 0 84px; }
.hero__grid { display: grid; grid-template-columns: 1.05fr .95fr; gap: 56px; align-items: center; }
.hero p.lead { font-size: 1.15rem; color: var(--text-soft); max-width: 40ch; }
.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero__panel {
  background: linear-gradient(160deg, #eaf4ff, #e0f3fc);
  border: 1px solid var(--border); border-radius: 24px; padding: 30px;
  box-shadow: var(--shadow);
}
.hero__panel ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.hero__panel li { display: flex; gap: 12px; align-items: flex-start; font-weight: 500; }
.hero__panel li svg { flex: none; margin-top: 3px; color: var(--accent); }

/* Services grid */
.grid { display: grid; gap: 22px; }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }
.card {
  background: var(--bg); border: 1px solid var(--border); border-radius: var(--radius);
  padding: 26px; transition: .15s ease;
}
.card:hover { border-color: #cdd6ff; box-shadow: var(--shadow); transform: translateY(-2px); }
.card__icon {
  width: 44px; height: 44px; border-radius: 12px; background: var(--accent-soft);
  display: grid; place-items: center; margin-bottom: 16px; font-size: 1.3rem;
}
.card h3 { margin-bottom: 6px; }
.card p { color: var(--text-soft); font-size: .96rem; margin: 0; }

/* About */
.about__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 56px; align-items: start; }
.about__body p { color: var(--text-soft); }
.checklist { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
.checklist li { display: flex; gap: 12px; align-items: flex-start; }
.checklist li::before {
  content: "✓"; flex: none; width: 22px; height: 22px; border-radius: 50%;
  background: var(--accent-soft); color: var(--accent); display: grid; place-items: center;
  font-size: .8rem; font-weight: 700; margin-top: 2px;
}

/* Process */
.steps { counter-reset: step; display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; }
.step { position: relative; padding-top: 8px; }
.step__num {
  counter-increment: step; width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--border); display: grid; place-items: center;
  font-weight: 700; color: var(--accent); margin-bottom: 14px;
}
.step__num::before { content: counter(step); }
.step h3 { font-size: 1.05rem; }
.step p { color: var(--text-soft); font-size: .93rem; margin: 0; }

/* FAQ */
.faq { max-width: 780px; display: grid; gap: 10px; }
.faq__item {
  border: 1px solid var(--border); border-radius: 12px; background: var(--bg);
  padding: 4px 20px; transition: border-color .15s ease;
}
.faq__item[open] { border-color: #bcd6fb; }
.faq__item summary {
  list-style: none; cursor: pointer; font-weight: 600; padding: 16px 0;
  display: flex; justify-content: space-between; align-items: center; gap: 16px;
}
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after {
  content: "+"; font-weight: 400; font-size: 1.4rem; color: var(--accent); flex: none; line-height: 1;
}
.faq__item[open] summary::after { content: "\2013"; }
.faq__item p { color: var(--text-soft); margin: 0 0 18px; font-size: .96rem; }

/* Contact */
.contact__grid { display: grid; grid-template-columns: .9fr 1.1fr; gap: 56px; align-items: start; }
.contact__info { display: grid; gap: 18px; }
.contact__info .row { display: flex; gap: 12px; align-items: flex-start; }
.contact__info .row strong { display: block; font-size: .8rem; text-transform: uppercase; letter-spacing: .06em; color: var(--text-soft); font-weight: 600; }
.contact__info .row span, .contact__info .row a { font-size: 1rem; color: var(--text); }
.form { display: grid; gap: 16px; }
.form .row2 { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { font-size: .88rem; font-weight: 600; }
.field input, .field textarea {
  font: inherit; padding: 12px 14px; border: 1px solid var(--border); border-radius: 10px;
  background: var(--bg); color: var(--text); width: 100%;
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--accent-soft); border-color: var(--accent); }
.field textarea { min-height: 130px; resize: vertical; }
.hp { position: absolute; left: -9999px; }

.alert { padding: 14px 16px; border-radius: 10px; font-size: .95rem; margin-bottom: 18px; }
.alert--ok { background: #e9f9ef; color: #1b7f43; border: 1px solid #bce8cd; }
.alert--err { background: #fdecec; color: #b3261e; border: 1px solid #f5c6c3; }
.field .err { color: #b3261e; font-size: .85rem; }

/* Footer */
.site-footer { background: var(--bg-dark); color: #aeb7c4; padding: 56px 0 28px; }
.site-footer a { color: #d6dde7; }
.site-footer a:hover { color: #fff; }
.site-footer__top { display: flex; justify-content: space-between; gap: 32px; flex-wrap: wrap; padding-bottom: 28px; border-bottom: 1px solid #232a35; }
.site-footer__brand { max-width: 340px; }
.site-footer__brand .brand { color: #fff; margin-bottom: 12px; }
.site-footer__links { display: flex; gap: 56px; flex-wrap: wrap; }
.site-footer__links h4 { color: #fff; font-size: .82rem; text-transform: uppercase; letter-spacing: .08em; margin: 0 0 14px; }
.site-footer__links ul { list-style: none; margin: 0; padding: 0; display: grid; gap: 9px; font-size: .93rem; }
.site-footer__socials { display: flex; gap: 12px; margin-top: 16px; }
.site-footer__socials a { width: 36px; height: 36px; border-radius: 9px; background: #1b222c; display: grid; place-items: center; }
.site-footer__socials a:hover { background: var(--accent); }
.site-footer__bottom { padding-top: 22px; font-size: .86rem; display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap; }

/* Responsive */
@media (max-width: 900px) {
  .hero__grid, .about__grid, .contact__grid { grid-template-columns: 1fr; gap: 36px; }
  .grid--3, .grid--4 { grid-template-columns: repeat(2, 1fr); }
  .steps { grid-template-columns: repeat(2, 1fr); }
  .section { padding: 64px 0; }
  .hero { padding: 64px 0 52px; }
  .nav { display: none; }
  .nav-toggle { display: block; }
  .brand img { height: 44px; }
  .site-header.open .nav {
    display: flex; position: absolute; left: 0; right: 0; top: 84px; flex-direction: column;
    background: var(--bg); border-bottom: 1px solid var(--border); padding: 18px 24px; gap: 16px; align-items: flex-start;
  }
}
@media (max-width: 560px) {
  .grid--3, .grid--4, .steps { grid-template-columns: 1fr; }
  .form .row2 { grid-template-columns: 1fr; }
}