:root {
  --bg: #e4e2dd;
  --surface: #f2f2f3;
  --surface-alt: #e9e9ea;
  --text: #1d1f20;
  --text-soft: rgba(29, 31, 32, .65);
  --border: rgba(29, 31, 32, .16);
  --blue: #5980a6;
  --blue-hover: #597ea3;
  --blue-icon: #416180;
  --dark: #1d2d3d;
  --on-dark: #f5f5f8;
  --font-body: 'Barlow', system-ui, sans-serif;
  --font-head: 'Barlow Condensed', system-ui, sans-serif;
}

* { box-sizing: border-box; }
body { margin: 0; background: var(--surface); color: var(--text); font-family: var(--font-body); font-size: 16px; line-height: 1.55; }
h1, h2, h3, h4 { font-family: var(--font-head); font-weight: 600; margin: 0; }
p { margin: 0; }
a { color: inherit; }

.container { max-width: 1200px; margin: 0 auto; padding: 0 20px; }

.btn { display: inline-flex; align-items: center; justify-content: center; padding: 10px 18px; font-family: var(--font-head); font-weight: 600; font-size: 14px; text-decoration: none; border: 1px solid transparent; cursor: pointer; }
.btn--primary { background: var(--blue); color: var(--surface); border-color: var(--blue); }
.btn--primary:hover { background: var(--blue-hover); }
.btn--outline { background: transparent; color: var(--text); border-color: var(--border); }
.btn--outline:hover { background: rgba(29, 31, 32, .06); }
.btn--text { background: transparent; color: var(--blue); padding-left: 4px; padding-right: 4px; }
.btn--text:hover { background: rgba(89, 128, 166, .1); }
.btn--light { background: var(--on-dark); color: var(--dark); }
.btn--light:hover { background: #d6ebff; }
.btn--block { width: 100%; }
.btn[disabled] { opacity: .6; cursor: default; }

/* Nav */
.nav { background: var(--surface); border-bottom: 1px solid var(--border); }
.nav__row { display: flex; align-items: center; gap: 16px; padding: 14px 20px; }
.nav__brand { font-family: var(--font-head); font-weight: 600; font-size: 18px; margin-right: auto; }
.nav__links { display: none; gap: 20px; }
.nav__links a { text-decoration: none; font-size: 14px; }
.nav__links a:hover { color: var(--blue); }

/* Badge / icons */
.badge { display: inline-flex; font-size: 11px; letter-spacing: .02em; padding: 3px 10px; border: 1px solid var(--blue); color: var(--blue); margin-bottom: 16px; }
.icon { display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px; border: 1px solid var(--border); color: var(--blue-icon); margin-bottom: 10px; }
.icon::before { content: ""; display: block; }
.icon--circle::before { width: 18px; height: 18px; border-radius: 50%; border: 2px solid currentColor; }
.icon--diamond::before { width: 14px; height: 14px; border: 2px solid currentColor; transform: rotate(45deg); }
.icon--triangle::before { width: 0; height: 0; border-left: 8px solid transparent; border-right: 8px solid transparent; border-bottom: 15px solid currentColor; }
.icon--square::before { width: 16px; height: 16px; border: 2px solid currentColor; }

/* Hero */
.hero { padding: 56px 0; }
.hero__grid { display: grid; grid-template-columns: 1fr; gap: 40px; align-items: center; }
.hero__title span { display: block; font-size: 34px; line-height: 1.16; letter-spacing: -.015em; }
.hero__subtitle { font-size: 17px; max-width: 520px; opacity: .85; margin-top: 14px; }
.hero__ctas { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 24px; }
.hero__mission { margin-top: 22px; padding-top: 18px; border-top: 1px solid var(--border); font-family: var(--font-head); font-weight: 600; font-size: 16px; }
.hero__image { width: 100%; aspect-ratio: 4/3; object-fit: cover; object-position: top center; display: block; border: 1px solid var(--border); }

/* Section head */
.section-head { max-width: 640px; margin-bottom: 28px; }
.section-head h2 { font-size: 28px; margin-bottom: 8px; }
.section-head p { color: var(--text-soft); }

/* Loop */
.loop { background: var(--surface-alt); padding: 48px 0; }
.loop__track { display: flex; flex-direction: column; border: 1px solid var(--border); }
.loop__node { padding: 22px 20px; }
.loop__node h4 { font-size: 18px; margin: 6px 0; }
.loop__node p { font-size: 13px; opacity: .8; }
.loop__num { display: block; font-family: var(--font-head); font-weight: 600; font-size: 12px; color: var(--blue-icon); letter-spacing: .08em; }
.loop__connector { display: none; }

/* Services */
.services { padding: 48px 0; }
.services__grid { display: grid; grid-template-columns: 1fr; gap: 16px; }
.card { border: 1px solid var(--border); padding: 20px; display: flex; flex-direction: column; gap: 8px; }
.card__kicker { font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--blue); }
.card h3 { font-size: 17px; }
.card p { font-size: 13px; opacity: .8; }

/* Banner */
.banner { background: var(--dark); color: var(--on-dark); padding: 48px 0; text-align: center; }
.banner__inner h2 { font-size: 26px; margin-bottom: 8px; }
.banner__inner p { opacity: .85; margin-bottom: 20px; }

/* Contact */
.contact { padding: 48px 0; }
.contact__inner { max-width: 640px; margin: 0 auto; }
.contact__inner h2 { font-size: 26px; margin-bottom: 8px; }
.contact__inner > p { color: var(--text-soft); margin-bottom: 24px; }
.form__row { display: grid; grid-template-columns: 1fr; gap: 12px; }
.field { margin-top: 12px; }
.field label { display: block; font-size: 12px; margin-bottom: 5px; color: var(--text-soft); }
.field input, .field textarea { width: 100%; padding: 8px 10px; font: inherit; font-size: 14px; background: var(--surface-alt); border: 1px solid var(--border); box-sizing: border-box; }
.field textarea { resize: vertical; }
.form__status { min-height: 20px; margin-top: 12px; font-size: 13px; }
.form__status[data-state="success"] { color: #2f6f4f; }
.form__status[data-state="error"] { color: #b3261e; }

/* Footer */
.footer { border-top: 1px solid var(--border); padding: 28px 0; }
.footer__row { display: flex; flex-direction: column; gap: 8px; }
.footer__brand { font-family: var(--font-head); font-weight: 600; font-size: 16px; }
.footer__tagline, .footer__copyright { font-size: 12px; color: var(--text-soft); }

/* Tablet */
@media (min-width: 640px) {
  .nav__links { display: flex; }
  .services__grid { grid-template-columns: repeat(2, 1fr); }
  .form__row { grid-template-columns: 1fr 1fr; }
  .footer__row { flex-direction: row; justify-content: space-between; align-items: center; }
}

/* Desktop */
@media (min-width: 960px) {
  .hero__grid { grid-template-columns: 1.05fr .95fr; }
  .hero__title span { font-size: 44px; }
  .services__grid { grid-template-columns: repeat(3, 1fr); }
  .loop__track { flex-direction: row; align-items: stretch; }
  .loop__node { flex: 1; }
  .loop__connector { display: flex; flex: 0 0 40px; align-items: center; justify-content: center; position: relative; }
  .loop__connector::before { content: ""; position: absolute; left: 0; right: 0; top: 50%; height: 1px; background: var(--border); }
}