/* ═══════════════════════════════════════════════════
   ROBOT ARMY — WHITE & BLUE THEME
   ═══════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800;900&family=JetBrains+Mono:wght@400;700&display=swap');

:root {
  --bg-primary: #ffffff;
  --bg-secondary: #f8fafd;
  --bg-card: #ffffff;
  --bg-card-hover: #f0f5ff;
  --border: #e2e8f0;
  --border-hover: #3b82f6;
  --blue-50: #eff6ff;
  --blue-100: #dbeafe;
  --blue-200: #bfdbfe;
  --blue-500: #3b82f6;
  --blue-600: #2563eb;
  --blue-700: #1d4ed8;
  --blue-900: #1e3a5f;
  --accent: #2563eb;
  --accent-light: #60a5fa;
  --accent-dark: #1d4ed8;
  --text-primary: #0f172a;
  --text-secondary: #475569;
  --text-muted: #94a3b8;
  --gradient: linear-gradient(135deg, #3b82f6, #1d4ed8);
  --gradient-light: linear-gradient(135deg, #60a5fa, #3b82f6);
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 12px rgba(0,0,0,0.08);
  --shadow-lg: 0 12px 40px rgba(0,0,0,0.1);
  --radius: 16px;
  --radius-lg: 24px;
}

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

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: #cbd5e1 #f1f5f9;
}

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  background: var(--bg-primary);
  color: var(--text-primary);
  overflow-x: hidden;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: #f1f5f9; }
::-webkit-scrollbar-thumb { background: #cbd5e1; border-radius: 3px; }
::selection { background: #dbeafe; color: var(--accent-dark); }

/* ─── LOADER ─── */
#loader {
  position: fixed; inset: 0; z-index: 9999;
  background: #ffffff;
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.6s ease, visibility 0.6s ease;
}
#loader.hidden { opacity: 0; visibility: hidden; pointer-events: none; }

.loader-content { text-align: center; }

.loader-spinner {
  width: 48px; height: 48px;
  margin: 0 auto 24px;
  border: 3px solid #e2e8f0;
  border-top-color: var(--accent);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

.loader-bar {
  width: 200px; height: 3px;
  background: #e2e8f0;
  border-radius: 2px;
  margin: 0 auto 16px;
  overflow: hidden;
}
.loader-fill {
  height: 100%;
  width: 0%;
  background: var(--gradient);
  border-radius: 2px;
  transition: width 0.3s ease;
}

.loader-text {
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  font-weight: 500;
}

@keyframes spin { to { transform: rotate(360deg); } }

/* ─── NAVBAR ─── */
#navbar {
  position: fixed; top: 0; left: 0; right: 0;
  z-index: 1000;
  padding: 16px 40px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: rgba(255,255,255,0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid #e2e8f0;
  transition: all 0.3s ease;
}
#navbar.scrolled {
  padding: 10px 40px;
  box-shadow: var(--shadow-sm);
}

.nav-brand {
  font-weight: 800;
  font-size: 1.1rem;
  color: var(--text-primary);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 32px;
}
.nav-links a {
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

.btn-nav {
  background: var(--gradient) !important;
  color: #fff !important;
  padding: 8px 20px !important;
  border-radius: 8px;
  font-weight: 600 !important;
}

.nav-toggle {
  display: none;
  flex-direction: column; gap: 5px;
  background: none; border: none; cursor: pointer; padding: 5px;
}
.nav-toggle span { width: 22px; height: 2px; background: var(--text-primary); transition: 0.3s; }

/* ─── HERO ─── */
#hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: linear-gradient(180deg, #f0f5ff 0%, #ffffff 100%);
}

#hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  z-index: 1;
}

.hero-overlay {
  position: relative;
  z-index: 2;
  text-align: center;
  pointer-events: none;
  max-width: 800px;
  padding: 0 20px;
}

.hero-badge {
  display: inline-block;
  padding: 6px 16px;
  background: #eff6ff;
  border: 1px solid #bfdbfe;
  border-radius: 100px;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 24px;
}

.hero-overlay h1 {
  font-size: clamp(2.5rem, 7vw, 5rem);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1.05;
  color: var(--text-primary);
}

.glitch { position: relative; }
.glitch::before,
.glitch::after {
  content: attr(data-text);
  position: absolute;
  top: 0; left: 0;
  width: 100%; height: 100%;
  overflow: hidden;
  pointer-events: none;
}
.glitch::before {
  left: 2px;
  color: #3b82f6;
  clip-path: inset(0 0 60% 0);
  animation: glitch-top 4s infinite linear alternate-reverse;
  opacity: 0.15;
}
.glitch::after {
  left: -2px;
  color: #1d4ed8;
  clip-path: inset(60% 0 0 0);
  animation: glitch-bottom 3.5s infinite linear alternate-reverse;
  opacity: 0.15;
}

@keyframes glitch-top {
  0%, 92% { transform: translate(0); }
  93% { transform: translate(-3px, -1px); }
  95% { transform: translate(3px, 1px); }
  97% { transform: translate(-2px, 1px); }
  100% { transform: translate(0); }
}
@keyframes glitch-bottom {
  0%, 90% { transform: translate(0); }
  92% { transform: translate(2px, 1px); }
  94% { transform: translate(-2px, -1px); }
  97% { transform: translate(1px, -1px); }
  100% { transform: translate(0); }
}

.subtitle {
  margin-top: 20px;
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--text-secondary);
  font-weight: 400;
  line-height: 1.7;
}

.cta-group {
  margin-top: 36px;
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
  pointer-events: all;
}

/* ─── BUTTONS ─── */
.btn {
  display: inline-block;
  padding: 14px 32px;
  font-family: 'Inter', sans-serif;
  font-size: 0.85rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: 10px;
  transition: all 0.3s ease;
  cursor: pointer;
  border: none;
}

.btn-primary {
  background: var(--gradient);
  color: #fff;
  box-shadow: 0 2px 8px rgba(37,99,235,0.3);
}
.btn-primary:hover {
  box-shadow: 0 4px 16px rgba(37,99,235,0.4);
  transform: translateY(-2px);
}

.btn-outline {
  background: #fff;
  color: var(--text-primary);
  border: 1px solid #e2e8f0;
  box-shadow: var(--shadow-sm);
}
.btn-outline:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-full { width: 100%; text-align: center; font-size: 0.95rem; padding: 16px; }

/* ─── SCROLL INDICATOR ─── */
.scroll-indicator {
  position: absolute; bottom: 32px; left: 50%;
  transform: translateX(-50%); z-index: 2;
  text-align: center;
  color: var(--text-muted);
  font-size: 0.7rem; letter-spacing: 3px; text-transform: uppercase;
  animation: float 2.5s ease-in-out infinite;
}
.scroll-indicator .arrow {
  width: 14px; height: 14px;
  margin: 8px auto 0;
  border-right: 1.5px solid var(--accent);
  border-bottom: 1.5px solid var(--accent);
  transform: rotate(45deg);
  opacity: 0.5;
}
@keyframes float {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50% { transform: translateX(-50%) translateY(8px); }
}

/* ─── SECTIONS ─── */
section {
  padding: 120px 5%;
  max-width: 1200px;
  margin: 0 auto;
}

.section-header { text-align: center; margin-bottom: 64px; }

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  font-weight: 800;
  letter-spacing: -0.02em;
  color: var(--text-primary);
}

.section-subtitle {
  margin-top: 12px;
  color: var(--text-secondary);
  font-size: 1rem;
}

/* ─── ROBOT GRID ─── */
.robot-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.robot-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  transition: all 0.4s ease;
  cursor: pointer;
  opacity: 0;
  transform: translateY(20px);
  position: relative;
}
.robot-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.robot-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.robot-card.active {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.15), var(--shadow-lg);
}

.robot-preview {
  height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
}
.robot-emoji {
  font-size: 4.5rem;
  filter: drop-shadow(0 4px 12px rgba(0,0,0,0.15));
  transition: transform 0.3s ease;
}
.robot-card:hover .robot-emoji {
  transform: scale(1.1) rotate(-5deg);
}

.robot-info {
  padding: 20px 24px 24px;
}
.robot-name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 4px;
}
.robot-tagline {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.robot-colors {
  display: flex;
  gap: 6px;
}
.robot-color-dot {
  width: 14px; height: 14px;
  border-radius: 50%;
  border: 2px solid #fff;
  box-shadow: 0 0 0 1px rgba(0,0,0,0.1);
}

.robot-select-btn {
  position: absolute;
  top: 12px; right: 12px;
  background: rgba(255,255,255,0.9);
  backdrop-filter: blur(8px);
  border: 1px solid #e2e8f0;
  padding: 6px 12px;
  border-radius: 8px;
  font-size: 0.7rem;
  font-weight: 600;
  color: var(--accent);
  cursor: pointer;
  opacity: 0;
  transition: all 0.2s;
}
.robot-card:hover .robot-select-btn { opacity: 1; }

/* ─── ARENA ─── */
.arena-container {
  position: relative;
  height: 500px;
  background: var(--bg-secondary);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
}

#arena-canvas {
  width: 100%;
  height: 100%;
  display: block;
}

.arena-info {
  position: absolute;
  bottom: 24px;
  left: 24px;
  background: rgba(255,255,255,0.92);
  backdrop-filter: blur(16px);
  border: 1px solid #e2e8f0;
  border-radius: 16px;
  padding: 20px 24px;
  min-width: 260px;
  box-shadow: var(--shadow-lg);
}

.arena-name {
  font-size: 1.2rem;
  font-weight: 800;
  color: var(--text-primary);
}
.arena-tagline {
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-top: 2px;
}
.arena-stats {
  display: flex;
  gap: 16px;
  margin: 12px 0 16px;
}
.arena-stat {
  font-size: 0.75rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 4px;
}

/* ─── PRICING ─── */
.pricing-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
  align-items: start;
}

.price-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 40px 28px;
  text-align: center;
  transition: all 0.4s ease;
  position: relative;
  opacity: 0;
  transform: translateY(20px);
}
.price-card.visible {
  opacity: 1;
  transform: translateY(0);
}
.price-card:hover {
  border-color: var(--border-hover);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.price-card.featured {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1), var(--shadow-lg);
  transform: scale(1.03) translateY(0);
}
.price-card.featured.visible { transform: scale(1.03) translateY(0); }
.price-card.featured:hover { transform: scale(1.03) translateY(-4px); }

.badge {
  position: absolute;
  top: -12px; left: 50%;
  transform: translateX(-50%);
  background: var(--gradient);
  color: #fff;
  font-size: 0.65rem;
  font-weight: 700;
  padding: 5px 16px;
  border-radius: 100px;
  letter-spacing: 1px;
  text-transform: uppercase;
  white-space: nowrap;
}

.price-card h3 {
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 8px;
}

.price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 2.2rem;
  font-weight: 700;
  color: var(--accent);
  margin-bottom: 4px;
}

.price-desc {
  color: var(--text-muted);
  font-size: 0.8rem;
  margin-bottom: 24px;
}

.price-card ul {
  list-style: none;
  margin-bottom: 28px;
  text-align: left;
}
.price-card li {
  padding: 8px 0;
  color: var(--text-secondary);
  font-size: 0.85rem;
  border-bottom: 1px solid #f1f5f9;
}
.price-card li::before {
  content: '✓ ';
  color: #10b981;
  font-weight: bold;
}

/* ─── CONTACT ─── */
#contact { max-width: 700px; }

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

.form-group { margin-bottom: 16px; }
.form-group label {
  display: block;
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-secondary);
  margin-bottom: 6px;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

input, textarea, select {
  width: 100%;
  padding: 14px 16px;
  background: #fff;
  border: 1px solid #e2e8f0;
  border-radius: 10px;
  color: var(--text-primary);
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
  -webkit-appearance: none;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.1);
}
input::placeholder, textarea::placeholder { color: var(--text-muted); }
textarea { resize: vertical; }

select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394a3b8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

/* ─── FOOTER ─── */
footer {
  border-top: 1px solid #e2e8f0;
  padding: 60px 5% 30px;
  max-width: 1200px;
  margin: 0 auto;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer-brand {
  font-weight: 800;
  font-size: 1.1rem;
  margin-bottom: 8px;
}
footer p { color: var(--text-secondary); font-size: 0.85rem; }

.footer-grid h4 {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--text-muted);
  margin-bottom: 12px;
}
.footer-grid a {
  display: block;
  color: var(--text-secondary);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 4px 0;
  transition: color 0.2s;
}
.footer-grid a:hover { color: var(--accent); }

.footer-bottom {
  padding-top: 20px;
  border-top: 1px solid #e2e8f0;
  text-align: center;
}

/* ─── RESPONSIVE ─── */
@media (max-width: 1024px) {
  .robot-grid, .pricing-grid { grid-template-columns: repeat(2, 1fr); }
  .price-card.featured { transform: none; }
  .price-card.featured.visible { transform: none; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 768px) {
  #navbar { padding: 12px 20px; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(255,255,255,0.98);
    backdrop-filter: blur(20px);
    flex-direction: column;
    padding: 20px;
    gap: 16px;
    border-bottom: 1px solid #e2e8f0;
    box-shadow: var(--shadow-md);
  }
  .nav-links.open { display: flex; }
  .nav-toggle { display: flex; }

  .robot-grid, .pricing-grid { grid-template-columns: 1fr; max-width: 440px; margin: 0 auto; }
  .form-row { grid-template-columns: 1fr; }
  section { padding: 80px 5%; }
  .footer-grid { grid-template-columns: 1fr; gap: 24px; }

  .arena-container { height: 400px; }
  .arena-info {
    left: 12px; right: 12px; bottom: 12px;
    padding: 16px;
  }
}

@media (max-width: 480px) {
  .hero-overlay h1 { font-size: 2rem; }
  .subtitle { font-size: 0.9rem; }
  .btn { padding: 12px 24px; font-size: 0.8rem; }
}