/* ============================================
   Latch Group — Design System
   Palette: black + white, teal/green gradient as accent only
   Gradient: #07ef9c → #25ead1 (from brand logomark)
   Type: Fraunces (display) + Inter (body)
   ============================================ */

:root {
  --black: #000000;
  --black-soft: #0a0a0a;
  --white: #ffffff;
  --off-white: #f6f6f6;

  --ink: #000000;
  --gray: #555555;
  --line: #e6e6e6;
  --line-dark: rgba(255,255,255,0.16);

  --grad-1: #07ef9c;
  --grad-2: #25ead1;
  --gradient: linear-gradient(90deg, var(--grad-1) 0%, var(--grad-2) 100%);
  --teal-mid: #14dba9; /* solid stand-in for gradient where a flat fill is needed (borders, dots, icons) */

  /* legacy variable names kept so existing markup doesn't need touching */
  --navy: var(--black);
  --navy-light: var(--black-soft);
  --teal: var(--teal-mid);
  --teal-dark: #0fae8a;
  --cream: var(--white);
  --cream-deep: var(--off-white);

  --max: 1140px;
  --pad: clamp(20px, 5vw, 64px);
  --radius: 4px;

  --serif: "Fraunces", Georgia, serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--white);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a { color: inherit; text-decoration: none; }

.container {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--pad);
}

h1, h2, h3, h4 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  margin: 0;
  letter-spacing: -0.01em;
}

h1 { font-size: clamp(2.4rem, 5vw, 3.6rem); }
h2 { font-size: clamp(1.8rem, 3.4vw, 2.5rem); }
h3 { font-size: 1.3rem; }

p { margin: 0; }

/* gradient accent text — used sparingly: eyebrows, key stats, one headline emphasis per page */
.gradient-text {
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 14px;
  display: block;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}

.eyebrow.on-dark { /* gradient reads fine on black too, no override needed */ }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 26px;
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  transition: all 0.18s ease;
  font-family: var(--sans);
}

.btn-primary {
  background: var(--gradient);
  color: var(--black);
}
.btn-primary:hover { filter: brightness(0.93); }

.btn-outline {
  background: transparent;
  border-color: #cfcfcf;
  color: var(--ink);
}
.btn-outline:hover { border-color: var(--grad-2); color: var(--teal-dark); }

.btn-outline.on-dark {
  border-color: rgba(255,255,255,0.35);
  color: var(--white);
}
.btn-outline.on-dark:hover { border-color: var(--grad-1); color: var(--grad-1); }

/* ---------- Nav ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px var(--pad);
  max-width: var(--max);
  margin: 0 auto;
}

.logo-img { height: 60px; width: auto; }

.nav-links {
  display: flex;
  align-items: center;
  gap: 34px;
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--ink);
  position: relative;
}
.nav-links a:hover { color: var(--teal-dark); }

.nav-cta { display: flex; align-items: center; gap: 18px; }

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  flex-direction: column;
  gap: 5px;
  padding: 4px;
}
.nav-toggle span {
  width: 22px;
  height: 2px;
  background: var(--black);
  display: block;
}

/* ---------- Sections ---------- */
section { padding: 96px 0; }
section.tight { padding: 64px 0; }

.section-head {
  max-width: 640px;
  margin-bottom: 48px;
}
.section-head.center { margin-left: auto; margin-right: auto; text-align: center; }

.lede {
  font-size: 1.1rem;
  color: var(--gray);
  margin-top: 16px;
}

/* ---------- Hero ---------- */
.hero {
  background: var(--black);
  color: var(--white);
  padding: 110px 0 90px;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -120px;
  top: -120px;
  width: 460px;
  height: 460px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(7,239,156,0.28), rgba(37,234,209,0.1) 55%, transparent 75%);
}

.hero-inner {
  max-width: 760px;
  position: relative;
  z-index: 2;
}

.hero h1 { color: var(--white); }
.hero .lede { color: rgba(255,255,255,0.78); max-width: 560px; }

.hero-actions {
  display: flex;
  gap: 14px;
  margin-top: 36px;
  flex-wrap: wrap;
}

.hero-meta {
  margin-top: 56px;
  display: flex;
  gap: 40px;
  flex-wrap: wrap;
  border-top: 1px solid rgba(255,255,255,0.15);
  padding-top: 28px;
}
.hero-meta div { max-width: 220px; }
.hero-meta strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.4rem;
  margin-bottom: 4px;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero-meta span { font-size: 0.85rem; color: rgba(255,255,255,0.7); }

/* ---------- Cards / Grids ---------- */
.grid {
  display: grid;
  gap: 24px;
}
.grid-3 { grid-template-columns: repeat(3, 1fr); }
.grid-2 { grid-template-columns: repeat(2, 1fr); }

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
}

.practice-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-left: 3px solid var(--teal-mid);
  padding: 26px 28px;
}
.practice-card h4 {
  font-family: var(--sans);
  font-weight: 700;
  font-size: 1rem;
  margin-bottom: 8px;
}
.practice-card p { font-size: 0.92rem; color: var(--gray); }

.model-card {
  background: var(--white);
  border: 1px solid var(--line);
  padding: 36px 30px;
  text-align: left;
}
.model-card .num {
  font-family: var(--serif);
  font-size: 0.85rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 18px;
  display: block;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.model-card h3 { margin-bottom: 10px; }
.model-card p { color: var(--gray); font-size: 0.95rem; }

/* ---------- Bench / network section ---------- */
.bench-section {
  background: var(--off-white);
}

.func-pill {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 30px;
  padding: 10px 18px;
  font-size: 0.88rem;
  font-weight: 500;
}
.func-pill .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--gradient);
  display: inline-block;
}
.func-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 28px;
}

.callout-box {
  border-left: 3px solid var(--teal-mid);
  background: var(--white);
  padding: 24px 28px;
  margin-top: 32px;
  font-size: 0.95rem;
  color: var(--black);
  font-style: italic;
}

/* ---------- Logo strip ---------- */
.logo-strip {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 44px;
  margin-top: 12px;
  opacity: 0.85;
}
.logo-strip img {
  height: 26px;
  width: auto;
  filter: grayscale(1) contrast(0.8);
  opacity: 0.7;
}

/* ---------- Contact ---------- */
.contact-section { background: var(--black); color: var(--white); }
.contact-section .section-head .lede { color: rgba(255,255,255,0.75); }
.contact-wrap {
  display: grid;
  grid-template-columns: 1fr 1.2fr;
  gap: 60px;
  align-items: start;
}
.contact-info { padding-top: 8px; }
.contact-info .item { margin-bottom: 28px; }
.contact-info .item strong {
  display: block; font-size: 0.8rem; letter-spacing: 0.08em; text-transform: uppercase; margin-bottom: 6px;
  background: var(--gradient);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.contact-info .item a, .contact-info .item span { font-size: 1.05rem; }

form { display: flex; flex-direction: column; gap: 16px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
label { font-size: 0.82rem; color: rgba(255,255,255,0.7); margin-bottom: 6px; display: block; }
input, select, textarea {
  width: 100%;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.25);
  border-radius: var(--radius);
  padding: 12px 14px;
  color: var(--white);
  font-family: var(--sans);
  font-size: 0.95rem;
}
input::placeholder, textarea::placeholder { color: rgba(255,255,255,0.4); }
input:focus, select:focus, textarea:focus { outline: none; border-color: var(--grad-2); }
textarea { resize: vertical; min-height: 110px; }

.form-note { font-size: 0.78rem; color: rgba(255,255,255,0.5); margin-top: 4px; }

/* ---------- Footer ---------- */
footer {
  background: var(--black-soft);
  color: rgba(255,255,255,0.6);
  padding: 36px 0;
  font-size: 0.85rem;
  border-top: 1px solid var(--line-dark);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
}
.footer-inner a:hover { color: var(--grad-1); }

/* ---------- Why Chris section ---------- */
.chris-wrap {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 64px;
  align-items: start;
}

.photo-placeholder {
  width: 100%;
  aspect-ratio: 3/4;
  background: var(--line);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
}
.photo-placeholder::after {
  content: "Photo";
  font-size: 0.8rem;
  color: var(--gray);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.chris-photo img {
  width: 100%;
  border-radius: var(--radius);
}

.chris-name {
  margin-top: 16px;
}
.chris-name strong {
  display: block;
  font-family: var(--serif);
  font-size: 1.1rem;
}
.chris-name span {
  font-size: 0.85rem;
  color: var(--gray);
}

.bg-logos {
  margin-top: 36px;
  padding-top: 28px;
  border-top: 1px solid var(--line);
}
.bg-logos-label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--gray);
  display: block;
  margin-bottom: 16px;
}
.bg-logo-row {
  display: flex;
  align-items: center;
  gap: 32px;
  flex-wrap: wrap;
}
.bg-logo-row img {
  height: 22px;
  width: auto;
}

/* ---------- Testimonials ---------- */
.testimonial-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 32px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  gap: 24px;
}

.testimonial-quote {
  font-family: var(--serif);
  font-size: 1.15rem;
  line-height: 1.55;
  color: var(--ink);
  font-style: italic;
  margin: 0;
}

.testimonial-attr {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}
.testimonial-attr strong {
  display: block;
  font-size: 0.88rem;
  font-weight: 700;
}
.testimonial-attr span {
  font-size: 0.82rem;
  color: var(--gray);
}
.testimonial-attr img {
  height: 20px;
  width: auto;
  filter: grayscale(1) contrast(0.75);
  opacity: 0.6;
}
.attr-logo-text {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--gray);
}

/* ---------- About page specifics ---------- */
.about-hero {
  background: var(--black);
  color: var(--white);
  padding: 90px 0 70px;
}
.bio-block {
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 56px;
  align-items: start;
}
.bio-photo img {
  border-radius: var(--radius);
  border: 1px solid var(--line);
}
.bio-photo .role {
  margin-top: 18px;
  text-align: left;
}
.bio-photo .role strong { display: block; font-family: var(--serif); font-size: 1.1rem; }
.bio-photo .role span { font-size: 0.85rem; color: var(--gray); }

.story-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 30px;
  margin-top: 16px;
}
.story-grid .card h4 {
  font-family: var(--sans);
  font-weight: 700;
  margin-bottom: 10px;
}
.story-grid .card p { color: var(--gray); font-size: 0.95rem; }

/* ---------- Responsive ---------- */
@media (max-width: 880px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .grid-3 { grid-template-columns: 1fr; }
  .grid-2 { grid-template-columns: 1fr; }
  .contact-wrap { grid-template-columns: 1fr; gap: 40px; }
  .form-row { grid-template-columns: 1fr; }
  .chris-wrap { grid-template-columns: 1fr; }
  .bio-block { grid-template-columns: 1fr; }
  .bio-photo img { max-width: 220px; }
  .story-grid { grid-template-columns: 1fr; }
  .hero-meta { gap: 28px; }
}