/* Practical Logic brand tokens (from moodboard) */
:root {
  --green: #20C96B;
  --green-dark: #17A557;
  --charcoal: #101F29;
  --charcoal-2: #16293a;
  --slate: #536573;
  --light: #F5F7F8;
  --white: #ffffff;
  --ink: #101F29;
  --muted: #536573;
  --line: #dde3e7;

  --font-head: "Montserrat", "Inter", system-ui, sans-serif;
  --font-body: "Inter", system-ui, -apple-system, "Segoe UI", sans-serif;

  --container: 1120px;
  --gutter: 20px;
  --radius: 14px;
  --shadow: 0 10px 30px rgba(16, 31, 41, 0.08);
}

*, *::before, *::after { box-sizing: border-box; }

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: 17px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--white);
}

img, svg { display: block; max-width: 100%; }

h1, h2, h3 {
  font-family: var(--font-head);
  font-weight: 800;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0 0 0.5em;
}
h1 { font-size: clamp(2.2rem, 5.5vw, 3.6rem); }
h2 { font-size: clamp(1.7rem, 3.6vw, 2.4rem); }
h3 { font-size: 1.15rem; font-weight: 700; }
p { margin: 0 0 1em; }
a { color: var(--green-dark); }

.accent { color: var(--green); }

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.skip-link {
  position: absolute; left: -999px; top: 0;
  background: var(--green); color: var(--charcoal); padding: 8px 12px; z-index: 100;
}
.skip-link:focus { left: 8px; top: 8px; }

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  font-family: var(--font-head); font-weight: 700; font-size: 0.95rem;
  padding: 14px 24px; border-radius: 999px; text-decoration: none;
  border: 2px solid transparent; cursor: pointer; transition: transform .15s ease, background .15s ease, color .15s ease, border-color .15s ease;
}
.btn:active { transform: translateY(1px); }
.btn-primary { background: var(--green); color: var(--charcoal); }
.btn-primary:hover { background: #2ad877; }
.btn-ghost { background: transparent; color: var(--light); border-color: rgba(245, 247, 248, 0.35); }
.btn-ghost:hover { border-color: var(--light); }
.btn-small { padding: 10px 18px; font-size: 0.85rem; }
.btn[disabled] { opacity: .6; cursor: default; }

/* Header */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--charcoal);
  border-bottom: 1px solid rgba(255,255,255,0.06);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  min-height: 72px; gap: 20px;
}
.brand, .footer-brand { display: inline-flex; align-items: center; gap: 12px; text-decoration: none; }
.brand-mark { width: 34px; height: auto; }
.brand-word {
  font-family: var(--font-head); font-weight: 800; font-size: 1.25rem;
  color: var(--white); letter-spacing: -0.01em; white-space: nowrap;
}
.brand-accent { color: var(--green); }

.site-nav { display: flex; align-items: center; gap: 28px; }
.site-nav a { color: var(--light); text-decoration: none; font-weight: 500; font-size: 0.95rem; }
.site-nav a:not(.btn):hover { color: var(--green); }

.nav-toggle {
  display: none; background: none; border: 0; padding: 8px; cursor: pointer;
  flex-direction: column; gap: 5px;
}
.nav-toggle span { display: block; width: 24px; height: 2px; background: var(--light); transition: transform .2s, opacity .2s; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Hero */
.hero {
  background: var(--charcoal);
  background-image:
    radial-gradient(ellipse at 85% 20%, rgba(32, 201, 107, 0.18), transparent 50%),
    linear-gradient(180deg, var(--charcoal) 0%, var(--charcoal-2) 100%);
  color: var(--light);
  padding: clamp(56px, 9vw, 120px) 0;
  overflow: hidden;
}
.hero-inner { display: grid; grid-template-columns: 1.4fr 1fr; align-items: center; gap: 40px; }
.hero .eyebrow { color: var(--green); }
.hero h1 { color: var(--white); max-width: 14ch; }
.lead { font-size: clamp(1.05rem, 2vw, 1.3rem); color: rgba(245, 247, 248, 0.82); max-width: 44ch; }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 28px; }
.hero-art svg { width: min(100%, 300px); margin-inline: auto; filter: drop-shadow(0 20px 40px rgba(0,0,0,0.35)); }

.eyebrow {
  font-family: var(--font-head); font-weight: 700; font-size: 0.78rem;
  letter-spacing: 0.22em; text-transform: uppercase; color: var(--green-dark);
  margin-bottom: 14px;
}

/* Sections */
.section { padding: clamp(56px, 8vw, 100px) 0; }
.section-alt { background: var(--light); }
.section-intro { color: var(--muted); max-width: 56ch; font-size: 1.05rem; margin-bottom: 40px; }

.services-grid {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px;
}
.service {
  background: var(--white); border: 1px solid var(--line); border-radius: var(--radius);
  padding: 28px 24px; box-shadow: var(--shadow);
  transition: transform .15s ease, border-color .15s ease;
}
.service:hover { transform: translateY(-3px); border-color: var(--green); }
.service-icon {
  width: 48px; height: 48px; border-radius: 12px;
  background: rgba(32, 201, 107, 0.12); color: var(--green-dark);
  display: grid; place-items: center; margin-bottom: 18px;
}
.service-icon svg { width: 26px; height: 26px; }
.service p { color: var(--muted); margin: 0; }

.steps {
  list-style: none; padding: 0; margin: 32px 0 0;
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px;
  counter-reset: step;
}
.step { position: relative; padding-top: 8px; }
.step-number {
  font-family: var(--font-head); font-weight: 800; font-size: 2.4rem;
  color: var(--green); line-height: 1; display: block; margin-bottom: 14px;
}
.step p { color: var(--muted); margin: 0; }

/* CTA band */
.cta-band { background: var(--charcoal); color: var(--white); padding: clamp(48px, 7vw, 80px) 0; }
.cta-inner { display: flex; align-items: center; justify-content: space-between; gap: 24px; flex-wrap: wrap; }
.cta-band h2 { margin: 0; }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr 1.2fr; gap: 56px; align-items: start; }
.contact-copy p { color: var(--muted); }
.contact-alt a { font-weight: 600; }

.contact-form { background: var(--light); border-radius: var(--radius); padding: 32px; }
.field { margin-bottom: 18px; }
.field label { display: block; font-weight: 600; font-size: 0.92rem; margin-bottom: 6px; }
.optional { color: var(--muted); font-weight: 400; }
.field input, .field textarea {
  width: 100%; font: inherit; color: var(--ink);
  padding: 12px 14px; border: 1px solid var(--line); border-radius: 10px; background: var(--white);
}
.field input:focus, .field textarea:focus { outline: 2px solid var(--green); outline-offset: 1px; border-color: var(--green); }
.field textarea { resize: vertical; min-height: 130px; }
.field-trap { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
.field.invalid input, .field.invalid textarea { border-color: #d14343; }
.form-status { margin: 14px 0 0; font-size: 0.95rem; min-height: 1.4em; }
.form-status.ok { color: var(--green-dark); font-weight: 600; }
.form-status.error { color: #b93333; }

/* Footer */
.site-footer { background: var(--charcoal); color: rgba(245, 247, 248, 0.75); padding: 40px 0; font-size: 0.92rem; }
.footer-inner { display: flex; flex-direction: column; align-items: flex-start; gap: 10px; }
.footer-tagline { font-family: var(--font-head); letter-spacing: 0.22em; text-transform: uppercase; font-size: 0.72rem; color: var(--light); margin: 0; }
.footer-meta { margin: 0; }
.site-footer a { color: var(--green); text-decoration: none; }
.site-footer a:hover { text-decoration: underline; }

/* Responsive */
@media (max-width: 900px) {
  .services-grid { grid-template-columns: repeat(2, 1fr); }
  .hero-inner { grid-template-columns: 1fr; }
  .hero-art { order: -1; }
  .hero-art svg { width: 160px; margin: 0 0 8px; filter: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 32px; }
  .steps { grid-template-columns: 1fr; }
}

@media (max-width: 680px) {
  body { font-size: 16px; }
  .services-grid { grid-template-columns: 1fr; }
  .nav-toggle { display: flex; }
  .site-nav {
    display: none; position: absolute; left: 0; right: 0; top: 100%;
    background: var(--charcoal); flex-direction: column; align-items: stretch; gap: 0;
    padding: 12px var(--gutter) 20px; border-bottom: 1px solid rgba(255,255,255,0.08);
  }
  .site-nav.open { display: flex; }
  .site-nav a { padding: 12px 0; }
  .site-nav .btn { margin-top: 8px; }
  .contact-form { padding: 22px 18px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .btn, .service, .nav-toggle span { transition: none; }
}