/* ============================================================
   Meshlocks — dark, futuristic mesh-network consulting site
   ============================================================ */

:root {
  --bg:          #060912;
  --bg-2:        #0a0e1a;
  --surface:     #0e1424;
  --surface-2:   #131c30;
  --border:      rgba(120, 180, 255, 0.12);
  --border-lit:  rgba(34, 211, 238, 0.45);

  --text:        #e7eef9;
  --text-dim:    #a4b4cc;
  --muted:       #6b7a94;

  --primary:     #22d3ee;   /* electric cyan */
  --primary-2:   #38bdf8;
  --accent:      #8b5cf6;   /* violet */
  --accent-2:    #a855f7;

  --glow-cyan:   rgba(34, 211, 238, 0.35);
  --glow-violet: rgba(139, 92, 246, 0.30);

  --grad: linear-gradient(120deg, var(--primary) 0%, var(--accent) 100%);

  --maxw: 1140px;
  --radius: 16px;
  --radius-sm: 10px;

  --font-head: "Space Grotesk", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "Chakra Petch", "Space Grotesk", sans-serif;
}

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

html { scroll-behavior: smooth; scroll-padding-top: 90px; }

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

/* Ambient page glow */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background:
    radial-gradient(60vw 60vw at 80% -10%, rgba(139, 92, 246, 0.10), transparent 60%),
    radial-gradient(55vw 55vw at -10% 30%, rgba(34, 211, 238, 0.10), transparent 60%);
}

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

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

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

section { position: relative; z-index: 1; }

.eyebrow {
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: 0.22em;
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--primary);
  margin-bottom: 14px;
}

.grad {
  background: var(--grad);
  -webkit-background-clip: text;
  background-clip: text;
  -webkit-text-fill-color: transparent;
  color: transparent;
}

/* ---------------- Buttons ---------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 13px 26px;
  border-radius: 999px;
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 0.95rem;
  cursor: pointer;
  border: 1px solid transparent;
  transition: transform .2s ease, box-shadow .25s ease, background .25s ease, border-color .25s ease;
}

.btn-accent {
  background: var(--grad);
  color: #04101a;
  box-shadow: 0 0 0 1px rgba(34,211,238,.3), 0 10px 30px -10px var(--glow-cyan);
}
.btn-accent:hover { transform: translateY(-2px); box-shadow: 0 0 0 1px rgba(34,211,238,.5), 0 16px 40px -12px var(--glow-cyan); }

.btn-ghost {
  background: rgba(255,255,255,.02);
  border-color: var(--border);
  color: var(--text);
}
.btn-ghost:hover { border-color: var(--border-lit); transform: translateY(-2px); box-shadow: 0 0 24px -8px var(--glow-cyan); }

/* ---------------- Nav ---------------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 50;
  transition: background .3s ease, border-color .3s ease, backdrop-filter .3s ease;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  background: rgba(6, 9, 18, 0.78);
  backdrop-filter: blur(14px);
  border-bottom-color: var(--border);
}
.nav-inner { display: flex; align-items: center; justify-content: space-between; height: 76px; }

.nav-logo { display: block; line-height: 0; }
.nav-logo img { display: block; height: 38px; width: auto; }

.nav-links { display: flex; align-items: center; gap: 30px; }
.nav-links a {
  font-size: 0.92rem;
  color: var(--text-dim);
  font-weight: 500;
  transition: color .2s ease;
  position: relative;
}
.nav-links a:not(.nav-cta):hover { color: var(--text); }
.nav-links a:not(.nav-cta)::after {
  content: ""; position: absolute; left: 0; bottom: -6px; height: 2px; width: 0;
  background: var(--grad); transition: width .25s ease;
}
.nav-links a:not(.nav-cta):hover::after { width: 100%; }

.nav-cta {
  padding: 9px 20px;
  border-radius: 999px;
  border: 1px solid var(--border-lit);
  color: var(--primary) !important;
  font-weight: 600;
  transition: background .25s ease, box-shadow .25s ease, color .25s ease;
}
.nav-cta:hover { background: rgba(34,211,238,.12); box-shadow: 0 0 22px -6px var(--glow-cyan); }

.nav-toggle { display: none; flex-direction: column; gap: 5px; background: none; border: 0; cursor: pointer; padding: 8px; }
.nav-toggle span { width: 24px; height: 2px; background: var(--text); border-radius: 2px; transition: .3s; }
.nav-toggle.open span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* ---------------- Hero ---------------- */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 0 90px;
  overflow: hidden;
}
.hero-mesh { position: absolute; inset: 0; width: 100%; height: 100%; z-index: 0; opacity: .9; }
.hero-grid {
  position: absolute; inset: 0; z-index: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(120,180,255,.05) 1px, transparent 1px),
    linear-gradient(90deg, rgba(120,180,255,.05) 1px, transparent 1px);
  background-size: 60px 60px;
  mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 80%);
  -webkit-mask-image: radial-gradient(120% 80% at 50% 0%, #000 30%, transparent 80%);
}
.hero-inner { position: relative; z-index: 2; max-width: 820px; }

.hero-title {
  font-size: clamp(2.6rem, 7vw, 4.6rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin-bottom: 22px;
}
.hero-sub { font-size: clamp(1.02rem, 2.2vw, 1.22rem); color: var(--text-dim); max-width: 640px; margin-bottom: 28px; }

.hero-badges { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 34px; }
.badge {
  display: inline-flex; align-items: center; gap: 9px;
  padding: 8px 15px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255,255,255,.02);
  font-size: 0.82rem;
  color: var(--text-dim);
  font-family: var(--font-mono);
  letter-spacing: .02em;
}
.badge .dot {
  width: 7px; height: 7px; border-radius: 50%;
  background: var(--primary);
  box-shadow: 0 0 10px 1px var(--glow-cyan);
  animation: pulse 2.6s infinite;
}
@keyframes pulse { 0%,100% { opacity: 1; } 50% { opacity: .35; } }

.hero-cta { display: flex; flex-wrap: wrap; gap: 14px; }

/* ---------------- Trust strip ---------------- */
.strip { border-block: 1px solid var(--border); background: rgba(10,14,26,.6); }
.strip-inner {
  display: flex; flex-wrap: wrap; align-items: center; justify-content: center;
  gap: 18px; padding: 20px 24px;
  font-family: var(--font-mono);
  text-transform: uppercase;
  letter-spacing: .12em;
  font-size: 0.74rem;
  color: var(--muted);
}
.strip .sep { color: var(--primary); opacity: .6; }

/* ---------------- Section shell ---------------- */
.section { padding: 100px 0; }
.section-head { max-width: 640px; margin: 0 auto 56px; text-align: center; }
.section-head h2 { font-size: clamp(1.9rem, 4vw, 2.7rem); margin-bottom: 14px; }
.section-sub { color: var(--text-dim); font-size: 1.05rem; }

/* ---------------- Why ---------------- */
.why-layout { display: grid; grid-template-columns: 1.05fr 1fr; gap: 60px; align-items: center; }
.why-copy h2 { font-size: clamp(1.7rem, 3.4vw, 2.4rem); margin-bottom: 20px; }
.why-copy p { color: var(--text-dim); margin-bottom: 16px; }
.why-copy strong { color: var(--text); }
.why-copy .btn { margin-top: 10px; }

.why-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.mini-card {
  padding: 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.mini-card:hover { transform: translateY(-4px); border-color: var(--border-lit); box-shadow: 0 18px 40px -22px var(--glow-cyan); }
.mini-ico {
  width: 44px; height: 44px; display: grid; place-items: center;
  border-radius: 12px; font-size: 1.2rem; margin-bottom: 14px;
  background: rgba(34,211,238,.08); border: 1px solid var(--border);
  color: var(--primary);
}
.mini-card h3 { font-size: 1.12rem; margin-bottom: 6px; }
.mini-card p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------------- Services ---------------- */
.service-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.service-card {
  position: relative;
  padding: 30px 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  overflow: hidden;
  transition: transform .25s ease, border-color .25s ease, box-shadow .25s ease;
}
.service-card::before {
  content: ""; position: absolute; inset: 0 0 auto 0; height: 2px;
  background: var(--grad); opacity: 0; transition: opacity .25s ease;
}
.service-card:hover { transform: translateY(-6px); border-color: var(--border-lit); box-shadow: 0 24px 50px -28px var(--glow-violet); }
.service-card:hover::before { opacity: 1; }
.svc-num {
  font-family: var(--font-mono);
  font-size: 0.85rem; letter-spacing: .15em;
  color: var(--primary); margin-bottom: 16px;
}
.service-card h3 { font-size: 1.2rem; margin-bottom: 10px; }
.service-card p { color: var(--text-dim); font-size: 0.94rem; }

/* ---------------- Process ---------------- */
.process { background: var(--bg-2); border-block: 1px solid var(--border); }
.steps { list-style: none; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
.step {
  position: relative;
  padding: 30px 24px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg));
}
.step-num {
  display: grid; place-items: center;
  width: 46px; height: 46px; border-radius: 12px;
  font-family: var(--font-head); font-weight: 700; font-size: 1.15rem;
  background: var(--grad); color: #04101a;
  margin-bottom: 16px;
  box-shadow: 0 10px 24px -12px var(--glow-cyan);
}
.step h3 { font-size: 1.15rem; margin-bottom: 8px; }
.step p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------------- Use cases ---------------- */
.uc-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 18px; }
.uc-card {
  padding: 26px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: rgba(255,255,255,.015);
  transition: transform .25s ease, border-color .25s ease, background .25s ease;
}
.uc-card:hover { transform: translateY(-4px); border-color: var(--border-lit); background: rgba(34,211,238,.04); }
.uc-card h3 { font-size: 1.1rem; margin-bottom: 8px; color: var(--text); }
.uc-card p { color: var(--text-dim); font-size: 0.92rem; }

/* ---------------- Contact ---------------- */
.contact-layout { display: grid; grid-template-columns: 1.3fr 1fr; gap: 30px; align-items: start; }
.contact-form {
  padding: 32px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
}
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.form-field { margin-bottom: 18px; }
.form-field label { display: block; font-size: 0.85rem; font-weight: 500; margin-bottom: 7px; color: var(--text-dim); }
.req { color: var(--primary); }
.form-field input,
.form-field select,
.form-field textarea {
  width: 100%;
  padding: 12px 14px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color .2s ease, box-shadow .2s ease;
}
.form-field textarea { resize: vertical; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus {
  outline: none;
  border-color: var(--border-lit);
  box-shadow: 0 0 0 3px rgba(34,211,238,.12);
}
.form-field select { appearance: none; cursor: pointer; }

.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }

.form-actions { display: flex; align-items: center; gap: 18px; flex-wrap: wrap; margin-top: 4px; }
.form-note { font-size: 0.88rem; color: var(--muted); }
.form-note a { color: var(--primary); }

.form-status { margin-top: 16px; padding: 12px 16px; border-radius: var(--radius-sm); font-size: 0.92rem; }
.form-status.is-success { background: rgba(34,211,238,.1); border: 1px solid var(--border-lit); color: var(--primary); }
.form-status.is-error { background: rgba(248,113,113,.1); border: 1px solid rgba(248,113,113,.4); color: #fca5a5; }

.contact-grid { display: grid; gap: 16px; }
.contact-card {
  padding: 22px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: linear-gradient(180deg, var(--surface), var(--bg-2));
  transition: border-color .25s ease, transform .25s ease;
}
.contact-card:hover { border-color: var(--border-lit); transform: translateY(-3px); }
.cc-ico {
  width: 40px; height: 40px; display: grid; place-items: center;
  border-radius: 10px; margin-bottom: 12px; font-size: 1.05rem;
  background: rgba(139,92,246,.12); border: 1px solid var(--border); color: var(--accent-2);
}
.contact-card h3 { font-size: 1.02rem; margin-bottom: 4px; }
.contact-card a, .cc-plain { color: var(--primary); font-weight: 600; font-size: 1rem; }
.cc-plain { color: var(--text); }
.cc-sub { color: var(--muted); font-size: 0.85rem; margin-top: 4px; }

/* ---------------- Footer ---------------- */
.footer { background: var(--bg-2); border-top: 1px solid var(--border); padding-top: 64px; position: relative; z-index: 1; }
.footer-inner { display: grid; grid-template-columns: 2fr 1fr 1fr 1fr; gap: 40px; padding-bottom: 48px; }
.footer-logo { height: 40px; width: auto; display: block; margin-bottom: 16px; }
.footer-brand p { color: var(--text-dim); font-size: 0.92rem; max-width: 320px; }
.footer-col h4 { font-size: 0.82rem; text-transform: uppercase; letter-spacing: .14em; color: var(--muted); margin-bottom: 16px; font-family: var(--font-mono); }
.footer-col a, .footer-plain { display: block; color: var(--text-dim); font-size: 0.92rem; margin-bottom: 10px; transition: color .2s ease; }
.footer-col a:hover { color: var(--primary); }

.social-row { display: flex; gap: 10px; }
.social {
  width: 40px; height: 40px; display: grid !important; place-items: center;
  border: 1px solid var(--border); border-radius: 10px;
  font-family: var(--font-mono); font-size: 0.85rem; color: var(--text-dim) !important;
  margin-bottom: 0 !important;
  transition: border-color .2s ease, color .2s ease, box-shadow .2s ease;
}
.social:hover { border-color: var(--border-lit); color: var(--primary) !important; box-shadow: 0 0 18px -6px var(--glow-cyan); }

.footer-bar { border-top: 1px solid var(--border); padding: 22px 0; }
.footer-bar p { color: var(--muted); font-size: 0.85rem; text-align: center; }

/* ---------------- Fade-up animation ---------------- */
.fade-up { opacity: 0; transform: translateY(24px); transition: opacity .6s ease, transform .6s ease; }
.fade-up.visible { opacity: 1; transform: translateY(0); }

/* ---------------- Responsive ---------------- */
@media (max-width: 900px) {
  .why-layout { grid-template-columns: 1fr; gap: 40px; }
  .service-grid { grid-template-columns: 1fr 1fr; }
  .steps { grid-template-columns: 1fr 1fr; }
  .uc-grid { grid-template-columns: 1fr 1fr; }
  .contact-layout { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr 1fr; gap: 32px; }
}

@media (max-width: 640px) {
  .nav-links {
    position: fixed; inset: 76px 0 auto 0;
    flex-direction: column; align-items: flex-start;
    gap: 4px; padding: 18px 24px 26px;
    background: rgba(6,9,18,.96); backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--border);
    transform: translateY(-130%);
    transition: transform .32s ease;
  }
  .nav-links.open { transform: translateY(0); }
  .nav-links a { width: 100%; padding: 10px 0; font-size: 1rem; }
  .nav-cta { width: auto; margin-top: 8px; }
  .nav-toggle { display: flex; }

  .section { padding: 72px 0; }
  .why-cards { grid-template-columns: 1fr; }
  .service-grid { grid-template-columns: 1fr; }
  .steps { grid-template-columns: 1fr; }
  .uc-grid { grid-template-columns: 1fr; }
  .form-row { grid-template-columns: 1fr; }
  .footer-inner { grid-template-columns: 1fr; gap: 28px; }
}

@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; scroll-behavior: auto !important; }
  .fade-up { opacity: 1; transform: none; }
}