/* ============================================================
   Fragment Labs — main stylesheet
   ============================================================ */

:root {
  --bg: #0b0e14;
  --bg-raised: #11151f;
  --bg-card: #141927;
  --border: #232a3b;
  --text: #e8ecf4;
  --text-dim: #9aa4b8;
  --accent: #ff5c39;       /* signal orange */
  --accent-soft: #ff7a5c;
  --radius: 14px;
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --container: 1120px;
}

* { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

h1, h2, h3 {
  font-family: var(--font-display);
  line-height: 1.15;
  letter-spacing: -0.02em;
}

h2 { font-size: clamp(1.75rem, 3.5vw, 2.6rem); font-weight: 700; }
h3 { font-size: 1.15rem; font-weight: 600; }

.eyebrow {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
}

.lede {
  font-size: 1.15rem;
  color: var(--text-dim);
  max-width: 640px;
}

section { padding: 96px 0; }

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(11, 14, 20, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}

.brand {
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 1.2rem;
  color: var(--text);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 10px;
}

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

.brand-logo {
  height: 20px;
  width: auto;
}

.brand-mark {
  width: 14px;
  height: 14px;
  background: var(--accent);
  clip-path: polygon(0 0, 100% 0, 100% 65%, 65% 100%, 0 100%);
  display: inline-block;
}

.site-nav { display: flex; align-items: center; gap: 28px; }

.site-nav a {
  color: var(--text-dim);
  text-decoration: none;
  font-size: 0.95rem;
  font-weight: 500;
  transition: color 0.2s;
}

.site-nav a:hover { color: var(--text); }

.nav-cta {
  color: var(--text) !important;
  border: 1px solid var(--accent);
  padding: 8px 18px;
  border-radius: 999px;
  transition: background 0.2s;
}

.nav-cta:hover { background: var(--accent); }

.nav-toggle { display: none; }

/* ---------- Hero ---------- */
.hero {
  position: relative;
  padding: 140px 0 120px;
  overflow: hidden;
}

.hero-grid {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 0%, black 10%, transparent 70%);
  opacity: 0.5;
  pointer-events: none;
}

.hero .container { position: relative; z-index: 1; }

.hero h1 {
  font-size: clamp(2.4rem, 6vw, 4.2rem);
  font-weight: 800;
  max-width: 900px;
  margin-bottom: 24px;
}

.hero h1 em {
  font-style: normal;
  color: var(--accent);
}

.hero .lede { margin-bottom: 40px; }

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-block;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  padding: 14px 28px;
  border-radius: 999px;
  transition: transform 0.15s, background 0.2s, border-color 0.2s;
}

.btn:hover { transform: translateY(-2px); }

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover { background: var(--accent-soft); }

.btn-ghost {
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-ghost:hover { border-color: var(--text-dim); }

.btn-lg { padding: 18px 36px; font-size: 1.05rem; }

/* ---------- Clients ---------- */
.clients {
  padding: 48px 0;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
  background: var(--bg-raised);
}

.clients-label {
  text-align: center;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 20px;
}

.client-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 16px 48px;
}

.client-list li {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--text-dim);
}

/* ---------- Pitch ---------- */
.pitch-grid {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 64px;
  align-items: start;
}

.pitch-copy p { color: var(--text-dim); }
.pitch-copy p + p { margin-top: 18px; }

/* ---------- Services ---------- */
.services { background: var(--bg-raised); border-top: 1px solid var(--border); border-bottom: 1px solid var(--border); }

.services h2 { margin-bottom: 48px; max-width: 640px; }

.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: transform 0.2s, border-color 0.2s;
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--accent);
}

.card-num {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--accent);
  font-size: 0.85rem;
  margin-bottom: 16px;
}

.card h3 { margin-bottom: 10px; }
.card p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- Process ---------- */
.process h2 { margin-bottom: 56px; max-width: 640px; }

.steps {
  list-style: none;
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 40px;
}

.step-num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--accent);
  color: var(--accent);
  font-family: var(--font-display);
  font-weight: 700;
  margin-bottom: 18px;
}

.step h3 { margin-bottom: 10px; }
.step p { color: var(--text-dim); font-size: 0.95rem; }

/* ---------- About ---------- */
.about { background: var(--bg-raised); border-top: 1px solid var(--border); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-copy p { color: var(--text-dim); }
.about-copy p + p { margin-top: 18px; }

/* ---------- Contact ---------- */
.contact {
  text-align: center;
  padding: 120px 0;
  border-top: 1px solid var(--border);
}

.contact .lede { margin: 16px auto 40px; }

.contact-actions {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Contact form ---------- */
.contact-form {
  max-width: 640px;
  margin: 0 auto 40px;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}

.contact-form label { display: flex; flex-direction: column; gap: 8px; }

.contact-form label span {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-dim);
}

.contact-form input,
.contact-form textarea {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 1rem;
  transition: border-color 0.2s;
}

.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: var(--accent);
}

.contact-form textarea { resize: vertical; }

.contact-form button { align-self: center; margin-top: 8px; }

/* honeypot — visually removed, still in the DOM for bots */
.hp-field {
  position: absolute !important;
  left: -9999px !important;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.form-status { min-height: 1.5em; text-align: center; color: var(--text-dim); }
.form-status.ok { color: #6fd394; }
.form-status.err { color: var(--accent-soft); }

/* ---------- Case studies ---------- */
.page-hero { padding: 110px 0 40px; }

.page-hero h1 {
  font-size: clamp(2rem, 5vw, 3.4rem);
  font-weight: 800;
  margin-bottom: 20px;
  max-width: 880px;
}

.crumb { color: var(--accent); text-decoration: none; }
.crumb:hover { text-decoration: underline; }

.cs-list { padding-top: 40px; }

.cs-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
  text-decoration: none;
  color: var(--text);
}

.cs-tag {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
}

.cs-more {
  margin-top: auto;
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--accent);
}

.cs-card-cta .btn { align-self: flex-start; margin-top: auto; }

.cs-layout {
  display: grid;
  grid-template-columns: 260px 1fr;
  gap: 64px;
  padding-top: 24px;
  padding-bottom: 40px;
}

.cs-meta dl {
  position: sticky;
  top: 100px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: 24px;
}

.cs-meta dt {
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-top: 18px;
}

.cs-meta dt:first-child { margin-top: 0; }
.cs-meta dd { color: var(--text-dim); margin-top: 4px; }
.cs-meta a { color: var(--text); }

.cs-body h2 {
  font-size: 1.4rem;
  margin: 36px 0 12px;
}

.cs-body h2:first-child { margin-top: 0; }
.cs-body p { color: var(--text-dim); }
.cs-body p + p { margin-top: 14px; }

.cs-next {
  border-top: 1px solid var(--border);
  padding: 48px 0 80px;
  margin-top: 40px;
}

.cs-next .container {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  justify-content: space-between;
}

.site-nav a.active { color: var(--text); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 28px 0;
  font-size: 0.9rem;
  color: var(--text-dim);
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
}

.site-footer nav { display: flex; gap: 24px; }

.site-footer a {
  color: var(--text-dim);
  text-decoration: none;
}

.site-footer a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  section { padding: 72px 0; }

  .card-grid, .steps { grid-template-columns: 1fr 1fr; }
  .cs-layout { grid-template-columns: 1fr; gap: 32px; }
  .cs-meta dl { position: static; }
  .pitch-grid, .about-grid { grid-template-columns: 1fr; gap: 32px; }
  .desktop-br { display: none; }
}

@media (max-width: 640px) {
  .card-grid, .steps { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }

  .site-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: flex-start;
    background: var(--bg-raised);
    border-bottom: 1px solid var(--border);
    padding: 20px 24px;
    gap: 18px;
  }

  .site-nav.open { display: flex; }

  .nav-toggle {
    display: flex;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
  }

  .nav-toggle span {
    width: 22px;
    height: 2px;
    background: var(--text);
    display: block;
  }

  .hero { padding: 90px 0 80px; }
}