/* =====================================================
   Arcsplash Wireless — Shared site styles
   Dark theme · cyan accents · matches portal/management UI
   ===================================================== */

:root {
  --bg-dark:       #050810;
  --bg-mid:        #0a1525;
  --panel:         rgba(13,16,20,0.7);
  --panel-solid:   #0d1014;
  --border:        rgba(255,255,255,0.08);
  --border-hot:    rgba(0,229,255,0.35);
  --text:          #e8edf3;
  --text-dim:      #8a95a5;
  --text-faint:    #525b6a;
  --accent:        #00e5ff;
  --accent-glow:   rgba(0,229,255,0.5);
  --accent-soft:   rgba(0,229,255,0.12);
  --pink:          #c0427a;
  --pink-glow:     rgba(192,66,122,0.2);
  --green:         #2dd4a7;
  --amber:         #fbbf24;
  --red:           #f87171;
  --radius:        14px;
}

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

html { scroll-behavior: smooth; }

body {
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", sans-serif;
  background:
    radial-gradient(ellipse 1200px 800px at 20% 30%, rgba(0,229,255,0.18), transparent 60%),
    radial-gradient(ellipse 1000px 600px at 80% 70%, rgba(192,66,122,0.16), transparent 55%),
    linear-gradient(135deg, var(--bg-dark) 0%, var(--bg-mid) 50%, var(--bg-dark) 100%);
  background-attachment: fixed;
  color: var(--text);
  min-height: 100vh;
  overflow-x: hidden;
  position: relative;
  line-height: 1.55;
}

/* Animated background mesh */
body::before {
  content: ''; position: fixed; inset: -50%; z-index: -1;
  background: conic-gradient(from 0deg at 50% 50%,
    transparent 0deg, rgba(0,229,255,0.05) 60deg,
    transparent 120deg, rgba(192,66,122,0.04) 240deg, transparent 360deg);
  animation: bgspin 28s linear infinite;
}
body::after {
  content: ''; position: fixed; inset: 0; z-index: -1;
  background-image:
    linear-gradient(rgba(0,229,255,0.03) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,229,255,0.03) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 1000px 700px at center, black, transparent 70%);
  pointer-events: none;
}
@keyframes bgspin { to { transform: rotate(360deg); } }
@keyframes pulse {
  0%, 100% { filter: drop-shadow(0 12px 36px var(--accent-glow)); transform: scale(1); }
  50%      { filter: drop-shadow(0 18px 56px rgba(0,229,255,0.85)); transform: scale(1.02); }
}
@keyframes shimmer {
  0%   { background-position: -200% 0; }
  100% { background-position: 200% 0; }
}
@keyframes fadeup {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}
.fadeup { animation: fadeup 0.8s cubic-bezier(0.2, 0.8, 0.2, 1) backwards; }
.fadeup.d1 { animation-delay: 0.1s; }
.fadeup.d2 { animation-delay: 0.25s; }
.fadeup.d3 { animation-delay: 0.4s; }
.fadeup.d4 { animation-delay: 0.55s; }

/* ===== HEADER / NAV ===== */
.site-header {
  position: sticky; top: 0; z-index: 100;
  background: rgba(8,11,15,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  max-width: 1280px; margin: 0 auto;
  display: flex; align-items: center; justify-content: space-between;
  padding: 14px 24px;
  gap: 24px;
}
.brand { display: flex; align-items: center; gap: 12px; text-decoration: none; color: var(--text); }
.brand img { height: 44px; width: auto; display: block; filter: drop-shadow(0 2px 12px var(--accent-glow)); }
.brand-text { font-size: 15px; font-weight: 600; letter-spacing: -0.01em; }
.brand-text span { color: var(--accent); }

.nav-links {
  display: flex; gap: 4px; align-items: center;
  list-style: none;
}
.nav-links li a {
  color: var(--text-dim); text-decoration: none;
  padding: 8px 16px; font-size: 14px; font-weight: 500;
  border-radius: 8px;
  transition: all 0.2s;
}
.nav-links li a:hover { color: var(--accent); background: var(--accent-soft); }
.nav-links li a.active { color: var(--accent); }

.header-actions { display: flex; gap: 8px; align-items: center; }

.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 20px;
  font-size: 14px; font-weight: 600; font-family: inherit;
  border-radius: 8px; cursor: pointer; text-decoration: none;
  transition: all 0.2s ease;
  border: 1px solid transparent;
  white-space: nowrap;
}
.btn-primary {
  background: linear-gradient(135deg, var(--accent) 0%, #45f0ff 100%);
  color: #001318; position: relative; overflow: hidden;
}
.btn-primary::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.3), transparent);
  background-size: 200% 100%; animation: shimmer 3s linear infinite;
  pointer-events: none;
}
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 8px 24px var(--accent-glow); filter: brightness(1.1); }
.btn-ghost {
  background: rgba(255,255,255,0.04); color: var(--text);
  border: 1px solid var(--border);
  backdrop-filter: blur(10px);
}
.btn-ghost:hover { border-color: var(--border-hot); color: var(--accent); }
.btn-lg { padding: 14px 28px; font-size: 15px; }
.btn-xl { padding: 18px 36px; font-size: 16px; }

.menu-toggle {
  display: none;
  background: none; border: none; color: var(--text); cursor: pointer;
  padding: 8px;
}

/* ===== HERO ===== */
.hero {
  max-width: 1280px; margin: 0 auto;
  padding: 80px 24px 64px;
  text-align: center;
}
.hero-logo {
  width: 70vw; max-width: 920px; margin: 0 auto -8px;
  filter: drop-shadow(0 24px 80px var(--accent-glow));
  animation: pulse 5s ease-in-out infinite;
}
.hero-logo img { width: 100%; height: auto; display: block; }
.hero-tag {
  display: inline-block;
  padding: 6px 14px; margin-bottom: 18px;
  font-size: 12px; font-weight: 600;
  letter-spacing: 0.06em; text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-soft);
  border: 1px solid var(--border-hot);
  border-radius: 100px;
}
.hero h1 {
  font-size: clamp(36px, 5.5vw, 64px);
  font-weight: 700; letter-spacing: -0.02em;
  line-height: 1.05; margin-bottom: 20px;
}
.hero h1 .accent { background: linear-gradient(135deg, var(--accent), #45f0ff); -webkit-background-clip: text; background-clip: text; color: transparent; }
.hero p.subtitle {
  font-size: clamp(16px, 1.6vw, 19px);
  color: var(--text-dim);
  max-width: 720px; margin: 0 auto 36px;
}
.hero .cta-row { display: flex; gap: 14px; flex-wrap: wrap; justify-content: center; }

/* ===== SECTIONS ===== */
section { padding: 64px 24px; }
.section-wrap { max-width: 1280px; margin: 0 auto; }
.section-head { text-align: center; margin-bottom: 48px; }
.section-eyebrow {
  display: inline-block; padding: 4px 12px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--accent);
  background: var(--accent-soft); border-radius: 100px;
  margin-bottom: 14px;
}
.section-head h2 {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700; letter-spacing: -0.02em;
  margin-bottom: 14px;
}
.section-head p {
  color: var(--text-dim); max-width: 680px;
  margin: 0 auto; font-size: 17px;
}

/* ===== CARD GRIDS ===== */
.grid { display: grid; gap: 24px; }
.grid-3 { grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); }
.grid-2 { grid-template-columns: repeat(auto-fit, minmax(380px, 1fr)); }

.card {
  background: var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px;
  transition: all 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent-glow), transparent);
  opacity: 0; transition: opacity 0.3s;
}
.card:hover {
  border-color: var(--border-hot);
  transform: translateY(-4px);
  box-shadow: 0 20px 50px rgba(0,229,255,0.1);
}
.card:hover::before { opacity: 1; }

.card-icon {
  width: 52px; height: 52px;
  background: linear-gradient(135deg, var(--accent-soft), rgba(0,229,255,0.04));
  border: 1px solid var(--border-hot);
  border-radius: 12px;
  display: flex; align-items: center; justify-content: center;
  color: var(--accent);
  margin-bottom: 20px;
}
.card-icon svg { width: 26px; height: 26px; }
.card h3 { font-size: 19px; font-weight: 600; margin-bottom: 10px; letter-spacing: -0.01em; }
.card p  { color: var(--text-dim); font-size: 14px; }
.card ul { list-style: none; margin-top: 16px; }
.card ul li {
  font-size: 14px; color: var(--text-dim);
  padding: 6px 0; display: flex; align-items: center; gap: 10px;
}
.card ul li::before {
  content: ''; width: 5px; height: 5px;
  background: var(--accent); border-radius: 50%; flex-shrink: 0;
}

/* ===== PRICING CARDS ===== */
.price-card {
  background: var(--panel);
  backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 32px;
  display: flex; flex-direction: column;
  transition: all 0.3s;
  position: relative;
}
.price-card.popular {
  border: 2px solid var(--accent);
  background: linear-gradient(180deg, rgba(0,229,255,0.08), var(--panel));
}
.price-card.popular::before {
  content: 'MOST POPULAR';
  position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: linear-gradient(135deg, var(--accent), #45f0ff); color: #001318;
  padding: 4px 14px; border-radius: 100px;
  font-size: 11px; font-weight: 700; letter-spacing: 0.06em;
}
.price-card:hover { transform: translateY(-4px); border-color: var(--border-hot); }
.price-card h3 { font-size: 18px; margin-bottom: 8px; }
.price-card .price { font-size: 38px; font-weight: 700; margin: 8px 0; letter-spacing: -0.02em; }
.price-card .price small { font-size: 14px; color: var(--text-dim); font-weight: 400; }
.price-card .target { color: var(--text-dim); font-size: 13px; min-height: 38px; margin-bottom: 20px; }
.price-card ul { list-style: none; margin-bottom: 24px; flex: 1; }
.price-card ul li {
  font-size: 13.5px; padding: 7px 0; display: flex; align-items: flex-start; gap: 10px;
}
.price-card ul li::before {
  content: '✓'; color: var(--accent); font-weight: 700; flex-shrink: 0;
}
.price-card ul li.x { color: var(--text-faint); }
.price-card ul li.x::before { content: '✕'; color: var(--text-faint); }

/* ===== FEATURE STRIP ===== */
.feature-strip {
  display: grid; gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
  margin: 48px 0;
}
.stat-tile {
  text-align: center; padding: 24px;
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 12px;
}
.stat-tile .num {
  font-size: 36px; font-weight: 700; color: var(--accent);
  letter-spacing: -0.02em;
}
.stat-tile .lbl {
  font-size: 12px; color: var(--text-dim);
  text-transform: uppercase; letter-spacing: 0.08em;
  margin-top: 6px;
}

/* ===== HOW IT WORKS ===== */
.steps { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 24px; }
.step {
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 14px; padding: 28px;
  position: relative; overflow: hidden;
}
.step-num {
  font-size: 64px; font-weight: 800;
  color: var(--accent-soft);
  position: absolute; right: 18px; top: 10px;
  line-height: 1;
}
.step h3 { font-size: 18px; margin-bottom: 10px; position: relative; }
.step p { color: var(--text-dim); font-size: 14px; position: relative; }

/* ===== INDUSTRY CARDS ===== */
.industry-card {
  position: relative; overflow: hidden;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: var(--panel-solid);
  padding: 36px 28px;
  min-height: 240px;
  display: flex; flex-direction: column; justify-content: flex-end;
  transition: all 0.3s;
}
.industry-card::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(ellipse at top right, var(--accent-soft), transparent 60%);
  opacity: 0.7; transition: opacity 0.3s;
}
.industry-card:hover { transform: translateY(-4px); border-color: var(--border-hot); }
.industry-card:hover::before { opacity: 1; }
.industry-card h3 { position: relative; font-size: 22px; margin-bottom: 10px; }
.industry-card p { position: relative; color: var(--text-dim); font-size: 14px; }
.industry-icon {
  position: absolute; top: 24px; right: 24px;
  color: var(--accent); opacity: 0.6;
}

/* ===== CTA BAND ===== */
.cta-band {
  background:
    radial-gradient(ellipse 800px 400px at 20% 50%, var(--accent-soft), transparent 60%),
    radial-gradient(ellipse 700px 400px at 80% 50%, var(--pink-glow), transparent 60%),
    linear-gradient(180deg, var(--panel-solid), var(--bg-mid));
  border: 1px solid var(--border-hot);
  border-radius: 20px;
  padding: 56px 32px;
  text-align: center;
  margin: 64px 0;
  position: relative;
  overflow: hidden;
}
.cta-band h2 { font-size: clamp(26px, 3.5vw, 36px); margin-bottom: 16px; }
.cta-band p { color: var(--text-dim); margin-bottom: 28px; max-width: 600px; margin-left: auto; margin-right: auto; }

/* ===== FORMS ===== */
.form-card {
  background: var(--panel); backdrop-filter: blur(12px);
  border: 1px solid var(--border);
  border-radius: 16px; padding: 36px;
  max-width: 580px; margin: 0 auto;
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block; margin-bottom: 6px;
  font-size: 13px; color: var(--text-dim); font-weight: 500;
}
.form-row input, .form-row select, .form-row textarea {
  width: 100%; padding: 12px 14px;
  background: rgba(8,11,15,0.6); color: var(--text);
  border: 1px solid var(--border); border-radius: 8px;
  font-family: inherit; font-size: 14px;
  transition: all 0.2s;
}
.form-row input:focus, .form-row select:focus, .form-row textarea:focus {
  outline: none; border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}
.form-row textarea { min-height: 120px; resize: vertical; }
.form-split { display: grid; gap: 18px; grid-template-columns: 1fr 1fr; }

/* ===== FOOTER ===== */
.site-footer {
  margin-top: 64px;
  padding: 56px 24px 32px;
  border-top: 1px solid var(--border);
  background: rgba(5,8,16,0.6);
}
.footer-inner {
  max-width: 1280px; margin: 0 auto;
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
}
.footer-brand img { height: 56px; width: auto; filter: drop-shadow(0 4px 16px var(--accent-glow)); margin-bottom: 14px; }
.footer-brand p { color: var(--text-dim); font-size: 14px; max-width: 280px; }
.footer-col h5 {
  font-size: 12px; font-weight: 700; letter-spacing: 0.08em;
  text-transform: uppercase; color: var(--text);
  margin-bottom: 16px;
}
.footer-col ul { list-style: none; }
.footer-col ul li { margin-bottom: 8px; }
.footer-col ul li a {
  color: var(--text-dim); text-decoration: none; font-size: 14px;
  transition: color 0.2s;
}
.footer-col ul li a:hover { color: var(--accent); }
.footer-bottom {
  max-width: 1280px; margin: 32px auto 0; padding-top: 24px;
  border-top: 1px solid var(--border);
  display: flex; justify-content: space-between; align-items: center;
  color: var(--text-faint); font-size: 13px;
}

/* ===== UTILITY ===== */
.text-accent { color: var(--accent); }
.text-dim    { color: var(--text-dim); }
.center      { text-align: center; }
.mt-md { margin-top: 24px; }
.mt-lg { margin-top: 40px; }

/* ===== MOBILE ===== */
@media (max-width: 900px) {
  .nav-links { display: none; }
  .menu-toggle { display: block; }
  .nav-links.open {
    display: flex; flex-direction: column;
    position: absolute; top: 100%; left: 0; right: 0;
    background: rgba(8,11,15,0.98); backdrop-filter: blur(20px);
    border-top: 1px solid var(--border);
    padding: 16px 24px;
  }
  .nav-links.open li { width: 100%; }
  .nav-links.open li a { display: block; padding: 12px 16px; }

  .header-actions .btn-ghost { display: none; }

  .hero-logo { width: 92vw; }
  .hero { padding: 48px 20px 40px; }

  .footer-inner { grid-template-columns: 1fr; gap: 32px; }
  .footer-bottom { flex-direction: column; gap: 12px; }

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