/* ========================================================
   localdev.ai — Shared Design System
   Used across: index.html, about.html, products.html
   ======================================================== */

:root {
  --bg: #000000;
  --bg-purple: #0f0122;
  --bg-mid: #1c1b3a;
  --accent-green: #30dc74;
  --accent-purple: #793aff;
  --accent-orange: #ff8154;
  --text: #ffffff;
  --text-muted: rgba(255,255,255,0.65);
  --text-dim: rgba(255,255,255,0.45);
  --border: rgba(255,255,255,0.08);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  font-family: 'Open Sans', Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  font-weight: 400;
  margin: 0;
}
h1, h2, h3, h4 { font-weight: 700; letter-spacing: -0.01em; }

.bg-section-dark { background: var(--bg); }
.bg-section-purple { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-purple) 50%, var(--bg) 100%); }
.bg-section-mid { background: linear-gradient(180deg, var(--bg) 0%, var(--bg-mid) 50%, var(--bg) 100%); }

/* Hero mesh background */
.mesh-bg { position: absolute; inset: 0; z-index: 0; overflow: hidden; }
.mesh-bg::before {
  content: ""; position: absolute; inset: -20%;
  background:
    radial-gradient(at 25% 30%, rgba(121,58,255,0.45) 0%, transparent 50%),
    radial-gradient(at 80% 20%, rgba(48,220,116,0.30) 0%, transparent 50%),
    radial-gradient(at 50% 90%, rgba(255,129,84,0.20) 0%, transparent 45%);
  filter: blur(80px);
  animation: meshMove 22s ease-in-out infinite;
}
@keyframes meshMove {
  0%,100% { transform: translate(0,0) scale(1); }
  33% { transform: translate(4%, -3%) scale(1.08); }
  66% { transform: translate(-3%, 4%) scale(0.95); }
}

.grid-overlay {
  position: absolute; inset: 0;
  background-image:
    linear-gradient(rgba(48,220,116,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(48,220,116,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
  mask-image: radial-gradient(ellipse at center, black 30%, transparent 75%);
}

/* Cards */
.card {
  background: rgba(28,27,58,0.5);
  border: 1px solid var(--border);
  border-radius: 12px;
  transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}
.card:hover { border-color: rgba(48,220,116,0.35); transform: translateY(-4px); }
.card-feature {
  background: linear-gradient(180deg, rgba(28,27,58,0.6) 0%, rgba(15,1,34,0.3) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
}

/* Buttons */
.btn-primary {
  background: var(--accent-green); color: #000; font-weight: 700;
  transition: all 0.3s; border: 2px solid var(--accent-green);
  text-decoration: none; display: inline-block;
}
.btn-primary:hover { background: transparent; color: var(--accent-green); transform: translateY(-2px); }
.btn-secondary {
  background: transparent; color: var(--accent-green); border: 2px solid var(--accent-green);
  font-weight: 700; transition: all 0.3s;
  text-decoration: none; display: inline-block;
}
.btn-secondary:hover { background: var(--accent-green); color: #000; }
.btn-purple {
  background: var(--accent-purple); color: #fff; font-weight: 700;
  transition: all 0.3s; border: 2px solid var(--accent-purple);
  text-decoration: none; display: inline-block;
}
.btn-purple:hover { background: transparent; color: var(--accent-purple); }

/* Pulse rings */
.pulse-ring {
  position: absolute; inset: 0; border-radius: 50%;
  border: 2px solid rgba(48,220,116,0.55);
  animation: pulseRing 2.5s cubic-bezier(0.215, 0.61, 0.355, 1) infinite;
}
.pulse-ring:nth-child(2) { animation-delay: 0.8s; }
.pulse-ring:nth-child(3) { animation-delay: 1.6s; }
@keyframes pulseRing {
  0% { transform: scale(1); opacity: 0.8; }
  100% { transform: scale(2); opacity: 0; }
}

/* Marquee */
.marquee-wrap { overflow: hidden; mask-image: linear-gradient(90deg, transparent, black 10%, black 90%, transparent); }
.marquee { display: flex; gap: 4rem; animation: marquee 40s linear infinite; width: max-content; }
@keyframes marquee { 0% { transform: translateX(0); } 100% { transform: translateX(-50%); } }
.logo-placeholder {
  font-family: 'Open Sans', sans-serif; font-weight: 600; font-size: 14px;
  color: rgba(255,255,255,0.4); letter-spacing: 3px;
  padding: 18px 28px; border: 1px solid rgba(255,255,255,0.12);
  border-radius: 6px; white-space: nowrap; transition: all 0.3s;
}
.logo-placeholder:hover { color: var(--accent-green); border-color: var(--accent-green); }

/* Reveal */
.reveal { opacity: 0; transform: translateY(30px); transition: all 0.9s cubic-bezier(0.16, 1, 0.3, 1); }
.reveal.visible { opacity: 1; transform: none; }

/* Pricing */
.tier-featured {
  background: linear-gradient(180deg, rgba(48,220,116,0.10) 0%, rgba(28,27,58,0.4) 100%);
  border: 1.5px solid var(--accent-green) !important; position: relative;
}
.tier-featured::after {
  content: "EMPFOHLEN"; position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
  background: var(--accent-green); color: #000; padding: 4px 14px; border-radius: 20px;
  font-size: 11px; font-weight: 700; letter-spacing: 1px;
}

/* Chat */
.typing-dots span {
  display: inline-block; width: 6px; height: 6px; margin: 0 2px;
  background: var(--accent-green); border-radius: 50%; opacity: 0.5;
  animation: typing 1.4s infinite;
}
.typing-dots span:nth-child(2) { animation-delay: 0.2s; }
.typing-dots span:nth-child(3) { animation-delay: 0.4s; }
@keyframes typing { 0%,60%,100% { opacity: 0.4; transform: translateY(0); } 30% { opacity: 1; transform: translateY(-4px); } }
.chat-bubble { opacity: 0; transform: translateY(10px); animation: bubbleIn 0.6s forwards; }
@keyframes bubbleIn { to { opacity: 1; transform: none; } }

/* Nav */
nav.scrolled { background: rgba(0,0,0,0.92); backdrop-filter: blur(16px); border-bottom: 1px solid var(--border); }

/* Service icon */
.icon-circle {
  width: 72px; height: 72px; border-radius: 50%;
  background: linear-gradient(135deg, rgba(121,58,255,0.18), rgba(48,220,116,0.12));
  display: flex; align-items: center; justify-content: center;
  border: 1px solid rgba(48,220,116,0.2); transition: all 0.4s;
}
.service-card:hover .icon-circle {
  background: linear-gradient(135deg, var(--accent-purple), var(--accent-green));
  transform: scale(1.05);
}

.stat-number { color: var(--accent-green); font-weight: 800; }
.section-divider { height: 1px; background: linear-gradient(90deg, transparent, rgba(255,255,255,0.08), transparent); }

/* Floating head */
.floating-head {
  animation: floatHead 8s ease-in-out infinite;
  filter: drop-shadow(0 0 60px rgba(48,220,116,0.3));
}
@keyframes floatHead {
  0%,100% { transform: translateY(0) rotate(0deg); }
  50% { transform: translateY(-15px) rotate(2deg); }
}

/* Product cards */
.product-card { transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1); cursor: pointer; }
.product-card:hover { border-color: var(--accent-purple); }
.product-number {
  font-family: 'Open Sans', monospace; font-weight: 800;
  color: var(--accent-purple); opacity: 0.4;
  font-size: 4rem; line-height: 1;
}

/* FAQ accordion */
.faq-item {
  border: 1px solid var(--border);
  border-radius: 10px;
  margin-bottom: 12px;
  overflow: hidden;
  background: rgba(28,27,58,0.4);
  transition: all 0.3s;
}
.faq-item[open] { border-color: rgba(48,220,116,0.35); background: rgba(28,27,58,0.6); }
.faq-item summary {
  padding: 16px 20px;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-weight: 600;
  font-size: 15px;
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  color: var(--accent-green);
  font-size: 24px;
  font-weight: 300;
  transition: transform 0.3s;
}
.faq-item[open] summary::after { content: "−"; }
.faq-item .faq-body {
  padding: 0 20px 16px;
  color: var(--text-muted);
  font-size: 14px;
  line-height: 1.6;
}

/* Page-link indicator (preview only) */
.preview-banner {
  position: fixed; bottom: 20px; right: 20px; z-index: 999;
  background: rgba(48,220,116,0.95); color: #000;
  padding: 10px 16px; border-radius: 20px;
  font-size: 13px; font-weight: 700;
  box-shadow: 0 8px 30px rgba(48,220,116,0.3);
}