/* Atlanticus Innovations — engineering-studio direction */

:root {
  --ink:        #0E1A17;
  --paper:      #FBFCFB;
  --card:       #FFFFFF;
  --muted:      #5A6B66;
  --hairline:   #E4EAE7;

  --teal:       #0F6E56;
  --teal-bright:#1D9E75;
  --teal-deep:  #085041;
  --teal-darker:#04342C;
  --teal-pale:  #E1F5EE;
  --teal-100:   #9FE1CB;
  --teal-300:   #5DCAA5;

  --maxw: 1080px;
  --pad: clamp(20px, 5vw, 48px);
  --radius: 12px;

  --font-display: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
}

.wrap { max-width: var(--maxw); margin: 0 auto; padding-left: var(--pad); padding-right: var(--pad); }

a { color: inherit; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 0 18px;
}

/* ---------- header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 40;
  background: rgba(251,252,251,0.86);
  backdrop-filter: saturate(1.4) blur(8px);
  border-bottom: 1px solid var(--hairline);
}
.site-header .wrap {
  display: flex; align-items: center; justify-content: space-between;
  height: 66px;
}
.brand { display: flex; align-items: center; gap: 10px; text-decoration: none; }
.brand svg { width: 26px; height: 26px; display: block; }
.brand span { font-family: var(--font-display); font-weight: 600; font-size: 17px; letter-spacing: -0.01em; }
.nav { display: flex; gap: 28px; }
.nav a { font-size: 14px; color: var(--muted); text-decoration: none; transition: color .15s; }
.nav a:hover { color: var(--ink); }
.nav-cta {
  font-size: 14px; text-decoration: none; color: var(--teal);
  border: 1px solid var(--teal); border-radius: 8px; padding: 7px 15px;
  transition: background .15s, color .15s;
}
.nav-cta:hover { background: var(--teal); color: #fff; }
.menu-toggle { display: none; }

/* ---------- hero ---------- */
.hero {
  position: relative; overflow: hidden;
  background: var(--teal-deep);
  color: var(--teal-pale);
}
.hero .traces { position: absolute; inset: 0; width: 100%; height: 100%; opacity: 0.4; pointer-events: none; }
.hero .wrap { position: relative; z-index: 1; padding-top: clamp(64px, 11vw, 120px); padding-bottom: clamp(64px, 11vw, 120px); }
.hero .eyebrow { color: var(--teal-300); }
.hero h1 {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: clamp(32px, 6vw, 56px);
  line-height: 1.05;
  letter-spacing: -0.02em;
  color: #fff;
  margin: 0;
  max-width: 15ch;
}
.hero p {
  font-size: clamp(16px, 2vw, 19px);
  color: var(--teal-100);
  max-width: 52ch;
  margin: 22px 0 0;
}
.hero-actions { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 34px; }

.btn {
  display: inline-block; font-family: var(--font-body); font-size: 15px; font-weight: 500;
  text-decoration: none; padding: 12px 22px; border-radius: 9px; cursor: pointer;
  border: 1px solid transparent; transition: transform .12s, background .15s, color .15s;
}
.btn:active { transform: translateY(1px); }
.btn-solid { background: #fff; color: var(--teal-deep); }
.btn-solid:hover { background: var(--teal-pale); }
.btn-ghost { border-color: var(--teal-bright); color: var(--teal-pale); }
.btn-ghost:hover { background: rgba(29,158,117,0.18); }

/* ---------- sections ---------- */
section { padding: clamp(56px, 9vw, 104px) 0; }
.section-head { max-width: 60ch; margin-bottom: 40px; }
.section-head h2 {
  font-family: var(--font-display); font-weight: 600;
  font-size: clamp(24px, 3.4vw, 34px); letter-spacing: -0.015em;
  line-height: 1.12; margin: 0;
}
.section-head p { color: var(--muted); margin: 14px 0 0; font-size: 17px; }

.divider { border: 0; border-top: 1px solid var(--hairline); margin: 0; }

/* services */
.grid-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.card {
  background: var(--card); border: 1px solid var(--hairline); border-radius: var(--radius);
  padding: 26px; transition: border-color .15s, transform .15s;
}
.card:hover { border-color: var(--teal-bright); transform: translateY(-2px); }
.card .ic {
  width: 42px; height: 42px; border-radius: 10px; background: var(--teal-pale);
  display: grid; place-items: center; color: var(--teal); margin-bottom: 16px;
}
.card .ic svg { width: 22px; height: 22px; }
.card h3 { font-family: var(--font-display); font-weight: 600; font-size: 19px; margin: 0 0 8px; }
.card p { color: var(--muted); margin: 0; font-size: 15px; }

/* apps */
.apps { background: var(--card); }
.grid-2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.app {
  border: 1px solid var(--hairline); border-radius: var(--radius); padding: 28px;
  display: flex; flex-direction: column; min-height: 190px;
}
.app.featured { border-color: var(--teal-bright); background: var(--teal-pale); }
.badge {
  align-self: flex-start; font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.08em;
  padding: 4px 11px; border-radius: 999px; margin-bottom: 16px;
}
.badge.live { background: var(--teal); color: #fff; }
.badge.soon { background: #fff; color: var(--teal); border: 1px solid var(--teal-bright); }
.app h3 { font-family: var(--font-display); font-weight: 600; font-size: 22px; margin: 0 0 8px; }
.app p { color: var(--muted); margin: 0; font-size: 15px; }
.app.featured p { color: var(--teal-deep); }

/* contact */
.contact .wrap { display: grid; grid-template-columns: 0.9fr 1.1fr; gap: clamp(32px, 6vw, 72px); align-items: start; }
.contact-info h2 { font-family: var(--font-display); font-weight: 600; font-size: clamp(24px,3.4vw,34px); letter-spacing:-0.015em; margin: 0; }
.contact-info p { color: var(--muted); margin: 14px 0 0; }
.contact-info .addr {
  margin-top: 26px; font-size: 15px; line-height: 1.8; color: var(--ink);
  border-top: 1px solid var(--hairline); padding-top: 22px;
}
.contact-info .addr .label { font-family: var(--font-mono); font-size: 11px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); display: block; margin-bottom: 4px; }

form { display: grid; gap: 16px; }
.field { display: grid; gap: 6px; }
.field label { font-size: 13px; font-weight: 500; color: var(--ink); }
.field input, .field textarea {
  font-family: var(--font-body); font-size: 15px; color: var(--ink);
  background: var(--card); border: 1px solid var(--hairline); border-radius: 9px;
  padding: 12px 14px; width: 100%; transition: border-color .15s, box-shadow .15s;
}
.field textarea { resize: vertical; min-height: 130px; }
.field input:focus, .field textarea:focus {
  outline: none; border-color: var(--teal); box-shadow: 0 0 0 3px rgba(15,110,86,0.14);
}
.hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }
form .btn-solid { background: var(--teal); color: #fff; justify-self: start; }
form .btn-solid:hover { background: var(--teal-deep); }

.form-note { font-size: 13px; color: var(--muted); }
.alert { border-radius: 9px; padding: 12px 14px; font-size: 14px; margin-bottom: 4px; }
.alert.ok { background: var(--teal-pale); color: var(--teal-deep); border: 1px solid var(--teal-100); }
.alert.err { background: #FCEBEB; color: #791F1F; border: 1px solid #F09595; }

/* footer */
.site-footer { border-top: 1px solid var(--hairline); padding: 36px 0; }
.site-footer .wrap { display: flex; align-items: center; justify-content: space-between; gap: 16px; flex-wrap: wrap; }
.site-footer .brand span { font-size: 15px; }
.site-footer small { color: var(--muted); font-size: 13px; }

/* focus visibility */
a:focus-visible, .btn:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--teal-bright); outline-offset: 2px;
}

/* responsive */
@media (max-width: 860px) {
  .grid-3 { grid-template-columns: 1fr; }
  .contact .wrap { grid-template-columns: 1fr; }
}
@media (max-width: 620px) {
  .grid-2 { grid-template-columns: 1fr; }
  .nav { display: none; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}