/* Layer48 Technology Solutions Corp. */

:root {
  --ink: #0b1220;
  --ink-2: #111a2e;
  --ink-3: #1a2540;
  --paper: #f7f8fa;
  --white: #ffffff;
  --text: #1c2333;
  --muted: #5b6475;
  --line: #e3e6ec;
  --line-dark: rgba(255, 255, 255, 0.1);
  --accent: #2bb59a;
  --accent-ink: #1d8f79;
  --accent-soft: rgba(43, 181, 154, 0.12);
  --on-dark: #e8ecf3;
  --on-dark-muted: #9aa5b8;
  --radius: 14px;
  --shadow: 0 1px 2px rgba(11, 18, 32, 0.04), 0 8px 24px rgba(11, 18, 32, 0.06);
  --max: 1180px;
  --font: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --display: "Space Grotesk", "Inter", system-ui, sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 88px; }

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

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

a { color: var(--accent-ink); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3, h4 {
  font-family: var(--display);
  line-height: 1.2;
  letter-spacing: -0.015em;
  margin: 0 0 0.5em;
  color: var(--ink);
}

p { margin: 0 0 1em; }

.container {
  width: 100%;
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-ink);
  margin-bottom: 14px;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.95rem;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.2s, color 0.2s, border-color 0.2s, transform 0.2s;
}
.btn:hover { text-decoration: none; transform: translateY(-1px); }
.btn-primary { background: var(--accent); color: var(--ink); }
.btn-primary:hover { background: #35c9ab; }
.btn-ghost { border-color: rgba(255, 255, 255, 0.25); color: var(--on-dark); }
.btn-ghost:hover { border-color: var(--accent); color: var(--white); }

/* Header */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 18, 32, 0.92);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line-dark);
}
.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
  color: var(--white);
}
.brand:hover { text-decoration: none; }
.brand-mark { width: 34px; height: 34px; }
.brand-name {
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.2rem;
  letter-spacing: -0.01em;
  line-height: 1;
}
.brand-name small {
  display: block;
  font-family: var(--font);
  font-weight: 500;
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--on-dark-muted);
  margin-top: 4px;
}

.nav { display: flex; align-items: center; gap: 30px; }
.nav a {
  color: var(--on-dark-muted);
  font-size: 0.93rem;
  font-weight: 500;
}
.nav a:hover, .nav a[aria-current="page"] { color: var(--white); text-decoration: none; }
.nav .btn { color: var(--ink); padding: 9px 18px; }

.nav-toggle {
  display: none;
  background: none;
  border: 0;
  padding: 8px;
  cursor: pointer;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  margin: 5px 0;
  background: var(--white);
  transition: transform 0.2s, opacity 0.2s;
}

/* Hero */

.hero {
  position: relative;
  overflow: hidden;
  background: radial-gradient(1200px 500px at 85% -10%, rgba(43, 181, 154, 0.18), transparent 60%),
    linear-gradient(180deg, var(--ink) 0%, var(--ink-2) 100%);
  color: var(--on-dark);
  padding: 120px 0 110px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(180deg, transparent, #000 30%, #000 70%, transparent);
  pointer-events: none;
}
.hero .container { position: relative; z-index: 1; }
.hero h1 {
  color: var(--white);
  font-size: clamp(2.4rem, 5.5vw, 4.1rem);
  max-width: 15ch;
  margin-bottom: 22px;
}
.hero h1 em { font-style: normal; color: var(--accent); }
.hero p.lead {
  font-size: 1.18rem;
  color: var(--on-dark-muted);
  max-width: 60ch;
  margin-bottom: 36px;
}
.hero .eyebrow { color: var(--accent); }
.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; }

.hero-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 64px;
  padding-top: 28px;
  border-top: 1px solid var(--line-dark);
}
.hero-tags span {
  font-size: 0.82rem;
  color: var(--on-dark-muted);
  border: 1px solid var(--line-dark);
  border-radius: 999px;
  padding: 6px 14px;
}

.page-hero { padding: 96px 0 80px; }
.page-hero h1 { max-width: 20ch; }

/* Sections */

.section { padding: 100px 0; }
.section-white { background: var(--white); }
.section-dark { background: var(--ink); color: var(--on-dark); }
.section-dark h2, .section-dark h3 { color: var(--white); }
.section-dark .eyebrow { color: var(--accent); }

.section-head { max-width: 680px; margin-bottom: 56px; }
.section-head h2 { font-size: clamp(1.9rem, 3.5vw, 2.6rem); }
.section-head p { color: var(--muted); font-size: 1.08rem; }
.section-dark .section-head p { color: var(--on-dark-muted); }

/* Practice cards */

.practice-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 22px;
}
.practice {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s;
}
.practice:hover { border-color: rgba(43, 181, 154, 0.5); transform: translateY(-2px); }
.practice-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--accent-soft);
  color: var(--accent-ink);
  display: grid;
  place-items: center;
  margin-bottom: 22px;
}
.practice-icon svg { width: 24px; height: 24px; }
.practice h3 { font-size: 1.3rem; }
.practice > p { color: var(--muted); font-size: 0.97rem; }
.practice ul {
  list-style: none;
  margin: 8px 0 0;
  padding: 18px 0 0;
  border-top: 1px solid var(--line);
}
.practice li { margin: 0 0 8px; }
.practice li a {
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 500;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.practice li a::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 2px;
  background: var(--accent);
  flex: none;
}
.practice li a:hover { color: var(--accent-ink); text-decoration: none; }

/* Approach */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 0;
  border-top: 1px solid var(--line-dark);
}
.step {
  padding: 34px 28px 10px 0;
  border-right: 1px solid var(--line-dark);
  padding-left: 28px;
}
.step:first-child { padding-left: 0; }
.step:last-child { border-right: 0; }
.step-num {
  font-family: var(--display);
  font-size: 0.9rem;
  color: var(--accent);
  font-weight: 600;
  letter-spacing: 0.08em;
  margin-bottom: 14px;
}
.step h3 { font-size: 1.25rem; }
.step p { color: var(--on-dark-muted); font-size: 0.95rem; }

/* Principles */

.principles {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 40px 48px;
}
.principle h3 {
  font-size: 1.12rem;
  padding-top: 18px;
  border-top: 2px solid var(--accent);
  display: inline-block;
}
.principle p { color: var(--muted); font-size: 0.97rem; }

/* Frameworks strip */

.frameworks {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
}
.frameworks span {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 10px;
  padding: 10px 18px;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--ink-3);
}

/* Services page */

.services-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 56px;
  align-items: start;
}

.service-nav {
  position: sticky;
  top: 100px;
  max-height: calc(100vh - 120px);
  overflow-y: auto;
  padding-right: 8px;
}
.service-nav h4 {
  font-family: var(--font);
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 22px 0 8px;
}
.service-nav h4:first-child { margin-top: 0; }
.service-nav ul { list-style: none; margin: 0; padding: 0; }
.service-nav a {
  display: block;
  padding: 5px 0 5px 14px;
  border-left: 2px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
  line-height: 1.4;
}
.service-nav a:hover { color: var(--ink); text-decoration: none; }
.service-nav a.active { color: var(--accent-ink); border-left-color: var(--accent); font-weight: 600; }

.practice-block { margin-bottom: 72px; }
.practice-block > header {
  margin-bottom: 28px;
  padding-bottom: 20px;
  border-bottom: 1px solid var(--line);
}
.practice-block > header h2 { font-size: 1.9rem; margin-bottom: 8px; }
.practice-block > header p { color: var(--muted); margin: 0; max-width: 70ch; }

.service {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 40px;
  margin-bottom: 24px;
  box-shadow: var(--shadow);
}
.service h3 { font-size: 1.55rem; margin-bottom: 14px; }
.service .summary { font-size: 1.05rem; color: var(--text); }
.service .detail { color: var(--muted); }

.service-cols {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  margin-top: 26px;
  padding-top: 26px;
  border-top: 1px solid var(--line);
}
.service-cols h4 {
  font-family: var(--font);
  font-size: 0.76rem;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--ink-3);
  margin-bottom: 12px;
}
.service-cols ul { margin: 0; padding: 0; list-style: none; }
.service-cols li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 9px;
  font-size: 0.94rem;
  line-height: 1.55;
}
.service-cols li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.62em;
  width: 8px;
  height: 2px;
  background: var(--accent);
}

.outcome {
  margin-top: 26px;
  padding: 18px 22px;
  background: var(--accent-soft);
  border-left: 3px solid var(--accent);
  border-radius: 0 10px 10px 0;
  font-size: 0.95rem;
}
.outcome strong { color: var(--ink); }

.tags { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 20px; }
.tags span {
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--ink-3);
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 4px 10px;
}

/* CTA + contact */

.cta {
  background: linear-gradient(135deg, var(--ink) 0%, var(--ink-3) 100%);
  border-radius: 20px;
  padding: 64px;
  color: var(--on-dark);
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 56px;
  align-items: start;
}
.cta h2 { color: var(--white); font-size: clamp(1.8rem, 3vw, 2.4rem); }
.cta p { color: var(--on-dark-muted); }
.cta .eyebrow { color: var(--accent); }

.contact-form { display: grid; gap: 14px; }
.contact-form .row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }
.contact-form label { display: grid; gap: 6px; font-size: 0.82rem; color: var(--on-dark-muted); font-weight: 500; }
.contact-form input, .contact-form select, .contact-form textarea {
  width: 100%;
  font: inherit;
  font-size: 0.95rem;
  color: var(--white);
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 10px;
  padding: 11px 14px;
  transition: border-color 0.2s, background 0.2s;
}
.contact-form select option { color: var(--ink); }
.contact-form textarea { min-height: 120px; resize: vertical; }
.contact-form input:focus, .contact-form select:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
  background: rgba(255, 255, 255, 0.08);
}
.contact-form .btn { justify-self: start; }

/* Footer */

.site-footer {
  background: var(--ink);
  color: var(--on-dark-muted);
  padding: 64px 0 36px;
  font-size: 0.9rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr repeat(3, 1fr);
  gap: 40px;
  padding-bottom: 40px;
  border-bottom: 1px solid var(--line-dark);
}
.footer-grid h4 {
  font-family: var(--font);
  color: var(--white);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: 14px;
}
.footer-grid ul { list-style: none; margin: 0; padding: 0; }
.footer-grid li { margin-bottom: 8px; }
.footer-grid a { color: var(--on-dark-muted); }
.footer-grid a:hover { color: var(--white); text-decoration: none; }
.footer-grid p { max-width: 34ch; margin-top: 16px; }
.footer-bottom { padding-top: 28px; display: flex; justify-content: space-between; flex-wrap: wrap; gap: 12px; }

/* Reveal */

.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.6s ease, transform 0.6s ease; }
.reveal.in { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { opacity: 1; transform: none; transition: none; }
}

/* Responsive */

@media (max-width: 1000px) {
  .services-layout { grid-template-columns: 1fr; gap: 0; }
  .service-nav {
    position: sticky;
    top: 72px;
    z-index: 20;
    max-height: none;
    overflow-x: auto;
    overflow-y: hidden;
    display: flex;
    gap: 8px;
    padding: 12px 0;
    margin: 0 -24px 24px;
    padding-left: 24px;
    background: var(--paper);
    border-bottom: 1px solid var(--line);
    scrollbar-width: none;
  }
  .service-nav::-webkit-scrollbar { display: none; }
  .service-nav h4 { display: none; }
  .service-nav ul { display: contents; }
  .service-nav a {
    white-space: nowrap;
    border: 1px solid var(--line);
    border-radius: 999px;
    padding: 6px 14px;
    background: var(--white);
  }
  .service-nav a.active { border-color: var(--accent); }
  .cta { grid-template-columns: 1fr; padding: 44px 32px; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 760px) {
  .nav {
    position: absolute;
    top: 72px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    gap: 0;
    background: var(--ink);
    border-bottom: 1px solid var(--line-dark);
    padding: 8px 24px 24px;
    display: none;
  }
  .nav.open { display: flex; }
  .nav a { padding: 12px 0; width: 100%; }
  .nav .btn { margin-top: 10px; width: auto; padding: 10px 20px; }
  .nav-toggle { display: block; }
  .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); }

  .container { padding: 0 20px; }
  .service-nav { margin: 0 -20px 24px; padding-left: 20px; }
  .section { padding: 72px 0; }
  .hero { padding: 84px 0 72px; }
  .practice-grid { grid-template-columns: 1fr; }
  .practice { padding: 26px; }
  .step, .step:first-child { padding: 26px 0 6px; border-right: 0; border-bottom: 1px solid var(--line-dark); }
  .service { padding: 26px 22px; }
  .service-cols { grid-template-columns: 1fr; gap: 22px; }
  .contact-form .row { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
}