/* ==============================
   ORBITALL AI — Design System
   ============================== */

/* --- Tokens --- */
:root {
  --bg-primary: #0a0a0f;
  --bg-secondary: #111118;
  --bg-card: rgba(255, 255, 255, 0.03);
  --bg-card-hover: rgba(255, 255, 255, 0.06);
  --border-card: rgba(255, 255, 255, 0.08);
  --border-card-hover: rgba(0, 180, 255, 0.25);

  --accent: #00b4ff;
  --accent-dim: #0088cc;
  --accent-glow: rgba(0, 180, 255, 0.35);
  --accent-glow-soft: rgba(0, 180, 255, 0.12);

  --text-primary: #f0f0f5;
  --text-secondary: #8a8a9a;
  --text-muted: #55556a;

  --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius: 16px;
  --radius-sm: 10px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);

  --container: 1140px;
  --section-pad: 120px;
}

/* --- Reset --- */
*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-font-smoothing: antialiased; }
body {
  font-family: var(--font);
  background: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  overflow-x: hidden;
}
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }
button { cursor: pointer; border: none; background: none; font-family: inherit; }
input, textarea, select { font-family: inherit; }

/* --- Utilities --- */
.container { max-width: var(--container); margin: 0 auto; padding: 0 24px; }
.section { padding: var(--section-pad) 0; position: relative; }
.section-alt { background: var(--bg-secondary); }

.section-header { text-align: center; margin-bottom: 64px; }
.section-tag {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2px;
  color: var(--accent);
  margin-bottom: 16px;
}
.section-header h2 {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

/* --- Glass Card --- */
.glass-card {
  background: var(--bg-card);
  border: 1px solid var(--border-card);
  border-radius: var(--radius);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  transition: var(--transition);
}
.glass-card:hover {
  background: var(--bg-card-hover);
  border-color: var(--border-card-hover);
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-size: 0.95rem;
  font-weight: 600;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.btn-primary {
  background: var(--accent);
  color: #000;
  box-shadow: 0 0 20px var(--accent-glow), 0 4px 15px rgba(0, 0, 0, 0.3);
}
.btn-primary:hover {
  background: #33c4ff;
  box-shadow: 0 0 35px var(--accent-glow), 0 6px 25px rgba(0, 0, 0, 0.4);
  transform: translateY(-2px);
}
.btn-secondary {
  border: 1px solid var(--border-card);
  color: var(--text-primary);
  background: var(--bg-card);
  backdrop-filter: blur(10px);
}
.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.btn-lg { padding: 18px 40px; font-size: 1.05rem; }
.btn-full { width: 100%; justify-content: center; }

/* --- Fade-in Animation --- */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.7s ease-out, transform 0.7s ease-out;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==============================
   NAV
   ============================== */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 0;
  transition: background 0.4s, padding 0.4s, backdrop-filter 0.4s;
}
#navbar.scrolled {
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 10px 0;
  border-bottom: 1px solid var(--border-card);
}
.nav-container {
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.logo {
  font-size: 1.3rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 6px;
}
.logo-icon { color: var(--accent); font-size: 1rem; }

.nav-links {
  display: flex;
  gap: 32px;
}
.nav-links a {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
  transition: color var(--transition);
  position: relative;
}
.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 2px;
  background: var(--accent);
  transition: width var(--transition);
}
.nav-links a:hover { color: var(--text-primary); }
.nav-links a:hover::after { width: 100%; }

.nav-cta {
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 24px;
  background: var(--accent);
  color: #000;
  border-radius: 50px;
  transition: var(--transition);
}
.nav-cta:hover { background: #33c4ff; transform: translateY(-1px); }

.mobile-toggle { display: none; flex-direction: column; gap: 5px; }
.mobile-toggle span {
  width: 24px; height: 2px;
  background: var(--text-primary);
  transition: var(--transition);
}

/* ==============================
   HERO
   ============================== */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  padding-top: 80px;
  padding-bottom: 0;
}
.hero-bg-glow {
  position: absolute;
  top: 50%; left: 55%;
  width: 700px; height: 700px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent-glow-soft) 0%, transparent 70%);
  pointer-events: none;
}
#heroCanvas {
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  pointer-events: none;
}
.hero-content {
  position: relative;
  z-index: 2;
  max-width: var(--container);
  margin: 0 auto;
  padding: 0 24px;
  width: 100%;
  display: flex;
  align-items: flex-start;
  gap: 48px;
}
.hero-text { max-width: 560px; flex: 1; }
.hero-badge {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 2.5px;
  color: var(--accent);
  background: var(--accent-glow-soft);
  padding: 6px 16px;
  border-radius: 50px;
  margin-bottom: 24px;
  border: 1px solid rgba(0, 180, 255, 0.15);
}
#hero h1 {
  font-size: clamp(2rem, 4.5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -0.03em;
  line-height: 1.15;
  margin-bottom: 20px;
}
.hero-sub {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 480px;
  margin-bottom: 28px;
  line-height: 1.7;
}
.hero-buttons { display: flex; gap: 16px; flex-wrap: wrap; margin-bottom: 24px; }

/* Trust badges */
.hero-trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.trust-badge {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.78rem;
  color: var(--text-secondary);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-card);
  padding: 6px 14px;
  border-radius: 50px;
}
.trust-badge svg { color: var(--accent); flex-shrink: 0; }

/* Hero form */
.hero-form-wrapper {
  flex-shrink: 0;
  width: 400px;
  position: relative;
  z-index: 5;
}
.hero-form {
  padding: 32px;
  background: rgba(15, 15, 25, 0.85);
  border: 1px solid var(--border-card);
}
.hero-form:hover {
  border-color: var(--border-card-hover);
}
.hero-form h3 {
  font-size: 1.3rem;
  font-weight: 700;
  margin-bottom: 4px;
}
.hero-form-sub {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 24px;
}
.hero-form .form-group { margin-bottom: 16px; }
.hero-form .form-group:last-of-type { margin-bottom: 20px; }
.hero-form .form-group label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 6px;
}
.hero-form .form-group input,
.hero-form .form-group select {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: rgba(255, 255, 255, 0.04);
  color: var(--text-primary);
  font-size: 0.9rem;
  transition: var(--transition);
  outline: none;
}
.hero-form .form-group input:focus,
.hero-form .form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow-soft);
}

/* Hero bottom bar */
.hero-bottom-bar {
  position: relative;
  z-index: 2;
  width: 100%;
  display: flex;
  justify-content: center;
  gap: 32px;
  padding: 20px 24px;
  margin-top: 48px;
  border-top: 1px solid var(--border-card);
  background: rgba(255, 255, 255, 0.02);
}
.bar-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  font-weight: 500;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  white-space: nowrap;
}
.bar-item svg { color: var(--accent); flex-shrink: 0; }

/* ==============================
   PROBLEM
   ============================== */
.problem-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.problem-grid .glass-card {
  padding: 40px 32px;
  text-align: center;
}
.card-icon {
  width: 64px; height: 64px;
  margin: 0 auto 20px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-glow-soft);
  color: var(--accent);
}
.problem-grid h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
}
.problem-grid p {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.7;
}

/* ==============================
   SOLUTION
   ============================== */
.solution-content { max-width: 800px; margin: 0 auto; }
.solution-card { padding: 48px 40px; text-align: center; }
.solution-lead {
  font-size: 1.2rem;
  line-height: 1.8;
  color: var(--text-secondary);
  margin-bottom: 40px;
}
.text-glow { color: var(--accent); font-weight: 600; }

.solution-stats {
  display: flex;
  justify-content: center;
  gap: 48px;
}
.stat { text-align: center; }
.stat-number {
  font-size: 2.8rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.03em;
}
.stat-suffix {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
}
.stat-label {
  display: block;
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-top: 4px;
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ==============================
   SERVICES
   ============================== */
.services-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.service-card {
  padding: 40px 32px;
  position: relative;
  overflow: hidden;
}
.service-card:hover { transform: translateY(-6px); }
.service-icon {
  width: 64px; height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-sm);
  background: var(--accent-glow-soft);
  color: var(--accent);
  margin-bottom: 20px;
}
.service-card h3 {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 16px;
}
.service-card ul { display: flex; flex-direction: column; gap: 10px; }
.service-card li {
  font-size: 0.9rem;
  color: var(--text-secondary);
  padding-left: 18px;
  position: relative;
}
.service-card li::before {
  content: '';
  position: absolute;
  left: 0; top: 9px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
}
.card-glow {
  position: absolute;
  bottom: -40px; right: -40px;
  width: 160px; height: 160px;
  background: radial-gradient(circle, var(--accent-glow-soft) 0%, transparent 70%);
  opacity: 0;
  transition: opacity 0.5s;
  pointer-events: none;
}
.service-card:hover .card-glow { opacity: 1; }

/* ==============================
   HOW IT WORKS
   ============================== */
.timeline {
  max-width: 600px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 0;
}
.timeline-step {
  display: flex;
  gap: 24px;
  position: relative;
  padding-bottom: 40px;
}
.step-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  min-width: 60px;
  text-align: center;
  position: relative;
}
.step-line {
  position: absolute;
  left: 30px;
  top: 50px;
  width: 2px;
  height: calc(100% - 30px);
  background: linear-gradient(to bottom, var(--accent-glow-soft), transparent);
}
.timeline-step:last-child .step-line { display: none; }
.timeline-step:last-child { padding-bottom: 0; }

.step-content {
  padding: 24px 28px;
  flex: 1;
}
.step-content h3 {
  font-size: 1.05rem;
  font-weight: 600;
  margin-bottom: 8px;
}
.step-content p {
  font-size: 0.9rem;
  color: var(--text-secondary);
}

/* ==============================
   DEMO
   ============================== */
.demo-container {
  max-width: 480px;
  margin: 0 auto;
}
.chatbot-window {
  overflow: hidden;
}
.chatbot-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 18px 24px;
  border-bottom: 1px solid var(--border-card);
}
.chatbot-avatar {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  color: #000;
  font-size: 0.9rem;
}
.chatbot-header strong { font-size: 0.92rem; }
.chatbot-status {
  display: block;
  font-size: 0.75rem;
  color: #22c55e;
}
.chatbot-messages {
  padding: 24px;
  min-height: 260px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}
.chat-msg {
  max-width: 80%;
  padding: 12px 18px;
  border-radius: 16px;
  font-size: 0.88rem;
  line-height: 1.5;
  animation: msgIn 0.4s ease-out;
}
@keyframes msgIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}
.chat-msg.user {
  align-self: flex-end;
  background: var(--accent);
  color: #000;
  border-bottom-right-radius: 4px;
}
.chat-msg.bot {
  align-self: flex-start;
  background: rgba(255, 255, 255, 0.06);
  color: var(--text-primary);
  border-bottom-left-radius: 4px;
}
.chatbot-input {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 24px;
  border-top: 1px solid var(--border-card);
  color: var(--text-muted);
  font-size: 0.88rem;
}
.chatbot-send {
  color: var(--accent);
  transition: var(--transition);
}
.chatbot-send:hover { transform: rotate(-45deg); }

/* ==============================
   CTA
   ============================== */
.section-cta {
  background: var(--bg-secondary);
  text-align: center;
  position: relative;
  overflow: hidden;
}
.section-cta::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  width: 600px; height: 600px;
  transform: translate(-50%, -50%);
  background: radial-gradient(circle, var(--accent-glow-soft) 0%, transparent 70%);
  pointer-events: none;
}
.cta-content { position: relative; z-index: 1; }
.cta-content h2 {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  margin-bottom: 16px;
}
.cta-content p {
  font-size: 1.05rem;
  color: var(--text-secondary);
  margin-bottom: 32px;
  max-width: 500px;
  margin-left: auto;
  margin-right: auto;
}

/* ==============================
   CONTACT
   ============================== */
.contact-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 32px;
  align-items: start;
}
.contact-form { padding: 36px; }
.form-group { margin-bottom: 20px; }
.form-group label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 8px;
}
.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-card);
  background: rgba(255, 255, 255, 0.03);
  color: var(--text-primary);
  font-size: 0.92rem;
  transition: var(--transition);
  outline: none;
}
.form-group select {
  appearance: none;
  -webkit-appearance: none;
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg width='12' height='8' viewBox='0 0 12 8' fill='none' xmlns='http://www.w3.org/2000/svg'%3E%3Cpath d='M1 1.5L6 6.5L11 1.5' stroke='%238a8a9a' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 40px;
}
.form-group select option {
  background: #1a1a25;
  color: var(--text-primary);
}
.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-glow-soft);
}
.form-group textarea { resize: vertical; }

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

.contact-info { display: flex; flex-direction: column; gap: 20px; }
.info-card {
  padding: 28px;
  display: flex;
  align-items: center;
  gap: 16px;
}
.info-icon {
  flex-shrink: 0;
  width: 48px; height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  background: var(--accent-glow-soft);
  color: var(--accent);
}
.info-card h4 { font-size: 0.9rem; font-weight: 600; }
.info-card a, .info-card p {
  font-size: 0.88rem;
  color: var(--text-secondary);
}
.info-card a:hover { color: var(--accent); }

/* ==============================
   FOOTER
   ============================== */
#footer {
  padding: 48px 0 32px;
  border-top: 1px solid var(--border-card);
}
.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  text-align: center;
}
.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-top: 8px;
}
.footer-socials {
  display: flex;
  gap: 16px;
}
.footer-socials a {
  width: 40px; height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  border: 1px solid var(--border-card);
  color: var(--text-secondary);
  transition: var(--transition);
}
.footer-socials a:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.footer-copy {
  font-size: 0.78rem;
  color: var(--text-muted);
}

/* ==============================
   RESPONSIVE
   ============================== */
@media (max-width: 900px) {
  :root { --section-pad: 80px; }
  .nav-links { display: none; }
  .nav-cta { display: none; }
  .mobile-toggle { display: flex; }

  /* Mobile menu */
  .nav-links.open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(10, 10, 15, 0.95);
    backdrop-filter: blur(20px);
    padding: 24px;
    gap: 20px;
    border-bottom: 1px solid var(--border-card);
  }

  .hero-content { flex-direction: column; gap: 32px; }
  .hero-form-wrapper { width: 100%; }
  .hero-bottom-bar {
    flex-wrap: wrap;
    gap: 16px;
    justify-content: center;
  }

  .problem-grid,
  .services-grid {
    grid-template-columns: 1fr;
    gap: 16px;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .solution-stats {
    gap: 24px;
  }
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

@media (min-width: 601px) and (max-width: 900px) {
  .services-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 600px) {
  :root { --section-pad: 60px; }
  .hero-text { max-width: 100%; }
  .hero-buttons { flex-direction: column; }
  .hero-buttons .btn { width: 100%; justify-content: center; }
  .hero-trust-badges { flex-direction: column; }
  .hero-bottom-bar { flex-direction: column; align-items: center; gap: 10px; }
  .solution-stats { flex-direction: column; gap: 24px; }
  .step-number { font-size: 1.5rem; min-width: 40px; }
  .step-line { left: 20px; }
}