/* ============================================================
   Techra LLC — Marketing Site
   ============================================================ */

/* ── Reset & Base ──────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:          #0d1117;
  --bg-card:     #161b22;
  --bg-card-alt: #1c2128;
  --border:      rgba(255,255,255,.08);
  --border-glow: rgba(99,102,241,.3);

  --text:        #e6edf3;
  --text-muted:  #8b949e;
  --text-dim:    #6e7681;

  --primary:     #6366f1;
  --primary-dark:#4f46e5;
  --primary-glow:rgba(99,102,241,.15);
  --accent:      #06b6d4;
  --accent-glow: rgba(6,182,212,.12);

  --radius:      12px;
  --radius-lg:   20px;
  --shadow:      0 4px 24px rgba(0,0,0,.4);
  --shadow-glow: 0 0 40px rgba(99,102,241,.15);

  --font: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Helvetica, Arial, sans-serif;
  --font-mono: 'SF Mono', 'Fira Code', 'Consolas', monospace;

  --nav-h: 72px;
  --section-gap: 120px;
  --container: 1140px;

  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--nav-h);
}

body {
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.65;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

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

.section { padding: var(--section-gap) 0; }

.gradient-text {
  background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.section-label {
  display: inline-block;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-glow);
  border: 1px solid var(--border-glow);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: 20px;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: -.02em;
  margin-bottom: 16px;
}

.section-sub {
  font-size: 1.1rem;
  color: var(--text-muted);
  max-width: 520px;
  margin-bottom: 56px;
}

/* ── Buttons ───────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 24px;
  font-size: .9375rem;
  font-weight: 600;
  border-radius: var(--radius);
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: all .2s var(--ease-out);
  white-space: nowrap;
  background: none;
}

.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
  box-shadow: 0 0 0 0 var(--primary-glow);
}
.btn-primary:hover {
  background: var(--primary-dark);
  border-color: var(--primary-dark);
  box-shadow: 0 0 0 8px var(--primary-glow), 0 8px 24px rgba(99,102,241,.35);
  transform: translateY(-1px);
}

.btn-ghost {
  color: var(--text-muted);
  border-color: var(--border);
  background: rgba(255,255,255,.04);
}
.btn-ghost:hover {
  color: var(--text);
  border-color: rgba(255,255,255,.2);
  background: rgba(255,255,255,.08);
}

.btn-sm { padding: 8px 18px; font-size: .875rem; }

.btn-full { width: 100%; justify-content: center; }

/* ── Nav ───────────────────────────────────────────────────── */
.nav-wrap {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  border-bottom: 1px solid transparent;
  transition: background .3s, border-color .3s, backdrop-filter .3s;
}

.nav-wrap.scrolled {
  background: rgba(13,17,23,.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-color: var(--border);
}

.nav {
  display: flex;
  align-items: center;
  height: var(--nav-h);
  gap: 32px;
}

.logo {
  display: flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  flex-shrink: 0;
}

.logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  border-radius: 8px;
  font-size: 1rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -.02em;
}

.logo-text {
  font-size: 1.125rem;
  font-weight: 700;
  color: var(--text);
  letter-spacing: -.01em;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 8px;
  list-style: none;
  margin-left: auto;
}

.nav-links a {
  text-decoration: none;
  color: var(--text-muted);
  font-size: .9375rem;
  font-weight: 500;
  padding: 8px 12px;
  border-radius: 8px;
  transition: color .15s, background .15s;
}

.nav-links a:hover { color: var(--text); background: rgba(255,255,255,.06); }

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

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: transform .3s, opacity .3s;
}

/* ── Hero ──────────────────────────────────────────────────── */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  overflow: hidden;
}

.hero-bg {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 80% 60% at 50% -10%, rgba(99,102,241,.12) 0%, transparent 60%),
    radial-gradient(ellipse 60% 50% at 90% 80%, rgba(6,182,212,.06) 0%, transparent 50%);
  pointer-events: none;
}

.hero-glow {
  position: absolute;
  top: 40%;
  left: 50%;
  width: 600px;
  height: 600px;
  transform: translate(-50%,-50%);
  background: radial-gradient(circle, rgba(99,102,241,.08) 0%, transparent 70%);
  pointer-events: none;
  filter: blur(40px);
}

.hero-inner {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  max-width: 760px;
  padding-top: 80px;
  padding-bottom: 120px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: .8125rem;
  font-weight: 500;
  color: var(--accent);
  background: rgba(6,182,212,.08);
  border: 1px solid rgba(6,182,212,.2);
  padding: 5px 14px;
  border-radius: 100px;
  margin-bottom: 28px;
  letter-spacing: .02em;
}

.hero-headline {
  font-size: clamp(2.75rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.08;
  letter-spacing: -.03em;
  margin-bottom: 24px;
}

.hero-sub {
  font-size: 1.2rem;
  color: var(--text-muted);
  line-height: 1.6;
  max-width: 520px;
  margin-bottom: 40px;
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 56px;
}

.hero-proof {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .875rem;
  color: var(--text-dim);
}

.hero-proof .dot { opacity: .4; }

/* ── Services ──────────────────────────────────────────────── */
.services-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-lg);
  padding: 36px 32px;
  position: relative;
  transition: border-color .3s, transform .3s var(--ease-out), box-shadow .3s;
}

.card:hover {
  border-color: rgba(99,102,241,.25);
  box-shadow: var(--shadow), 0 0 40px rgba(99,102,241,.08);
  transform: translateY(-4px);
}

.card-featured {
  border-color: rgba(99,102,241,.3);
  background: linear-gradient(135deg, rgba(99,102,241,.06) 0%, rgba(6,182,212,.04) 100%);
  box-shadow: var(--shadow-glow);
}

.card-badge {
  position: absolute;
  top: 20px;
  right: 20px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--primary);
  background: var(--primary-glow);
  border: 1px solid var(--border-glow);
  padding: 3px 10px;
  border-radius: 100px;
}

.card-icon {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, var(--primary-glow), var(--accent-glow));
  border: 1px solid var(--border-glow);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 24px;
  color: var(--primary);
}

.card-icon svg { width: 24px; height: 24px; }

.card h3 {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -.02em;
  margin-bottom: 12px;
}

.card p {
  color: var(--text-muted);
  font-size: .9375rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.feature-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.feature-list li {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .875rem;
  color: var(--text-muted);
}

.feature-list li::before {
  content: '';
  display: block;
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  flex-shrink: 0;
  opacity: .7;
}

/* ── Why ───────────────────────────────────────────────────── */
.why {
  background: linear-gradient(180deg, transparent 0%, rgba(99,102,241,.03) 50%, transparent 100%);
}

.why-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.why-points {
  display: flex;
  flex-direction: column;
  gap: 28px;
}

.why-point {
  display: flex;
  gap: 16px;
}

.why-icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  background: var(--primary-glow);
  border: 1px solid var(--border-glow);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
  color: var(--primary);
}

.why-icon svg { width: 14px; height: 14px; }

.why-point strong {
  display: block;
  font-size: .9375rem;
  font-weight: 600;
  margin-bottom: 4px;
}

.why-point p {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.why-visual {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.stat-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 32px;
  transition: border-color .3s;
}

.stat-card:hover { border-color: rgba(99,102,241,.25); }

.stat-num {
  font-size: 2.25rem;
  font-weight: 800;
  letter-spacing: -.03em;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: 4px;
}

.stat-label {
  font-size: .875rem;
  color: var(--text-muted);
}

/* ── Process ───────────────────────────────────────────────── */
.process { text-align: center; }

.process .section-sub { margin-left: auto; margin-right: auto; }

.steps {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr auto 1fr;
  align-items: start;
  gap: 0;
  margin-top: 64px;
}

.step {
  text-align: center;
  padding: 0 16px;
}

.step-num {
  display: inline-block;
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .1em;
  color: var(--primary);
  background: var(--primary-glow);
  border: 1px solid var(--border-glow);
  padding: 6px 14px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.step h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.step p {
  font-size: .875rem;
  color: var(--text-muted);
  line-height: 1.6;
}

.step-connector {
  width: 48px;
  height: 2px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  opacity: .25;
  margin-top: 22px;
  flex-shrink: 0;
}

/* ── Contact ───────────────────────────────────────────────── */
.contact {
  background: linear-gradient(180deg, transparent 0%, rgba(6,182,212,.03) 50%, transparent 100%);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: start;
}

.contact-details {
  margin-top: 32px;
}

.contact-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text-muted);
  text-decoration: none;
  font-size: .9375rem;
  transition: color .15s;
}

.contact-link:hover { color: var(--accent); }
.contact-link svg { width: 18px; height: 18px; flex-shrink: 0; }

.contact-form {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 40px;
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

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

.form-group label {
  font-size: .8125rem;
  font-weight: 600;
  color: var(--text-muted);
  letter-spacing: .02em;
}

.form-group input,
.form-group select,
.form-group textarea {
  background: rgba(255,255,255,.04);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 16px;
  font-size: .9375rem;
  font-family: var(--font);
  color: var(--text);
  outline: none;
  transition: border-color .2s, box-shadow .2s;
  -webkit-appearance: none;
  appearance: none;
}

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%238b949e' stroke-width='2'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.form-group select option { background: var(--bg-card); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-glow);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-dim); }

.form-group textarea { resize: vertical; min-height: 100px; }

.form-note {
  font-size: .8125rem;
  color: var(--text-dim);
  text-align: center;
  margin-top: -8px;
}

.form-success {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: .9375rem;
  color: #4ade80;
  background: rgba(74,222,128,.08);
  border: 1px solid rgba(74,222,128,.2);
  border-radius: 10px;
  padding: 14px 18px;
}
.form-success svg { width: 18px; height: 18px; flex-shrink: 0; }

/* ── Footer ────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--border);
  padding: 60px 0 32px;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1.5fr 1fr;
  gap: 64px;
  margin-bottom: 48px;
}

.footer-brand p {
  font-size: .9rem;
  color: var(--text-muted);
  margin-top: 16px;
  line-height: 1.6;
}

.footer-brand .logo { margin-bottom: 0; }

.footer-nav {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer-col strong {
  font-size: .8125rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 4px;
}

.footer-col a {
  font-size: .875rem;
  color: var(--text-muted);
  text-decoration: none;
  transition: color .15s;
}
.footer-col a:hover { color: var(--text); }

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  font-size: .8125rem;
  color: var(--text-dim);
}

.footer-bottom a {
  color: var(--text-muted);
  text-decoration: none;
  transition: color .15s;
}
.footer-bottom a:hover { color: var(--text); }

/* ── Scroll animation ──────────────────────────────────────── */
[data-aos] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity .6s var(--ease-out), transform .6s var(--ease-out);
}

[data-aos].aos-animate {
  opacity: 1;
  transform: translateY(0);
}

/* ── Responsive ────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .services-grid { grid-template-columns: 1fr; max-width: 540px; margin: 0 auto; }
  .why-inner { grid-template-columns: 1fr; gap: 48px; }
  .contact-inner { grid-template-columns: 1fr; gap: 48px; }
  .footer-inner { grid-template-columns: 1fr; gap: 40px; }
}

@media (max-width: 768px) {
  :root { --section-gap: 80px; }

  .steps {
    grid-template-columns: 1fr;
    gap: 32px;
  }
  .step-connector { display: none; }
  .step { text-align: left; padding: 0; }

  .form-row { grid-template-columns: 1fr; }

  .contact-form { padding: 28px 24px; }

  .footer-bottom { flex-direction: column; gap: 8px; text-align: center; }

  .nav-toggle { display: flex; }

  .nav-links {
    display: none;
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: rgba(13,17,23,.97);
    backdrop-filter: blur(12px);
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 40px 24px;
    gap: 8px;
  }

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

  .nav-links a {
    width: 100%;
    text-align: center;
    padding: 14px;
    font-size: 1.1rem;
  }

  .hero-headline { letter-spacing: -.025em; }
  .hero-proof { flex-wrap: wrap; gap: 8px; }
}

@media (max-width: 480px) {
  .hero-cta { flex-direction: column; }
  .btn { width: 100%; justify-content: center; }
  .hero-inner { padding-top: 40px; padding-bottom: 80px; }
}

/* ── Focus styles ──────────────────────────────────────────── */
:focus-visible {
  outline: 2px solid var(--primary);
  outline-offset: 3px;
  border-radius: 4px;
}