/* ==========================================================================
   nge.ai.id - Modern Cyber-Luxe Design System
   ========================================================================== */

:root {
  --font-main: 'Plus Jakarta Sans', system-ui, -apple-system, sans-serif;
  --font-heading: 'Outfit', system-ui, -apple-system, sans-serif;

  /* Color Palette */
  --bg-dark: #07090e;
  --bg-card: rgba(17, 24, 39, 0.7);
  --bg-card-hover: rgba(26, 36, 56, 0.85);
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-glow: rgba(139, 92, 246, 0.3);

  /* Primary Brand Neons */
  --accent-primary: #8b5cf6;
  --accent-secondary: #06b6d4;
  --accent-gradient: linear-gradient(135deg, #a855f7 0%, #6366f1 50%, #06b6d4 100%);
  --accent-gradient-text: linear-gradient(135deg, #c084fc 0%, #818cf8 40%, #38bdf8 100%);

  /* Neutrals */
  --text-main: #f8fafc;
  --text-muted: #94a3b8;
  --text-dim: #64748b;

  /* Status Colors */
  --emerald: #10b981;
  --amber: #f59e0b;
  --rose: #f43f5e;
}

/* Reset & Base */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  font-family: var(--font-main);
  background-color: var(--bg-dark);
  color: var(--text-main);
}

body {
  overflow-x: hidden;
  min-height: 100vh;
  position: relative;
  line-height: 1.6;
  background-image: 
    radial-gradient(circle at 50% 0%, rgba(139, 92, 246, 0.15) 0%, transparent 60%),
    linear-gradient(rgba(255, 255, 255, 0.02) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.02) 1px, transparent 1px);
  background-size: 100% 100%, 48px 48px, 48px 48px;
}

/* Ambient Glow Blobs */
.ambient-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(120px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.45;
}

.glow-1 {
  top: -100px;
  left: 20%;
  width: 500px;
  height: 500px;
  background: radial-gradient(circle, #7c3aed, transparent 70%);
}

.glow-2 {
  top: 400px;
  right: 5%;
  width: 450px;
  height: 450px;
  background: radial-gradient(circle, #0891b2, transparent 70%);
}

.glow-3 {
  bottom: 10%;
  left: 10%;
  width: 600px;
  height: 600px;
  background: radial-gradient(circle, #4f46e5, transparent 70%);
}

/* Typography Helpers */
h1, h2, h3, h4 {
  font-family: var(--font-heading);
  letter-spacing: -0.025em;
  font-weight: 700;
}

/* ==========================================================================
   Navbar
   ========================================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  background: rgba(7, 9, 14, 0.75);
  border-bottom: 1px solid var(--border-subtle);
  transition: all 0.3s ease;
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  text-decoration: none;
  color: var(--text-main);
  font-family: var(--font-heading);
  font-size: 1.45rem;
  font-weight: 800;
}

.logo-icon {
  font-size: 1.5rem;
  filter: drop-shadow(0 0 8px #8b5cf6);
}

.accent-dot {
  color: #38bdf8;
  font-weight: 900;
}

.nav-status {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(16, 185, 129, 0.1);
  border: 1px solid rgba(16, 185, 129, 0.25);
  color: #34d399;
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.35rem 0.85rem;
  border-radius: 9999px;
}

.status-indicator {
  width: 8px;
  height: 8px;
  background: #10b981;
  border-radius: 50%;
  box-shadow: 0 0 10px #10b981;
  animation: pulse-dot 2s infinite ease-in-out;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.4; transform: scale(0.85); }
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.75rem;
}

.nav-links a:not(.btn-nav-action) {
  text-decoration: none;
  color: var(--text-muted);
  font-size: 0.92rem;
  font-weight: 500;
  transition: color 0.2s ease;
}

.nav-links a:not(.btn-nav-action):hover {
  color: var(--text-main);
}

.btn-nav-action {
  text-decoration: none;
  background: rgba(139, 92, 246, 0.15);
  color: #c084fc;
  border: 1px solid rgba(139, 92, 246, 0.4);
  padding: 0.45rem 1.15rem;
  border-radius: 8px;
  font-size: 0.88rem;
  font-weight: 600;
  transition: all 0.25s ease;
}

.btn-nav-action:hover {
  background: #8b5cf6;
  color: #fff;
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.5);
  transform: translateY(-1px);
}

/* ==========================================================================
   Hero Section
   ========================================================================== */
.hero-section {
  position: relative;
  z-index: 1;
  padding: 5.5rem 1.5rem 4rem;
  text-align: center;
}

.hero-container {
  max-width: 900px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  backdrop-filter: blur(8px);
  padding: 0.4rem 1.1rem;
  border-radius: 9999px;
  font-size: 0.85rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.badge-tag {
  background: linear-gradient(135deg, #8b5cf6, #3b82f6);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.15rem 0.55rem;
  border-radius: 9999px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.hero-title {
  font-size: clamp(2.8rem, 7vw, 5.2rem);
  line-height: 1.08;
  font-weight: 900;
  background: var(--accent-gradient-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  margin-bottom: 1.5rem;
  letter-spacing: -0.03em;
  text-shadow: 0 0 40px rgba(168, 85, 247, 0.3);
}

.smile-emoji {
  display: inline-block;
  background: linear-gradient(135deg, #facc15, #f97316);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  transform: rotate(90deg);
  margin-left: 0.35rem;
  font-weight: 900;
  animation: gentle-tilt 3s ease-in-out infinite;
}

@keyframes gentle-tilt {
  0%, 100% { transform: rotate(90deg) scale(1); }
  50% { transform: rotate(90deg) scale(1.15); }
}

.hero-desc {
  font-size: clamp(1.05rem, 2vw, 1.25rem);
  color: var(--text-muted);
  max-width: 680px;
  margin: 0 auto 2.5rem;
  line-height: 1.7;
}

.hero-desc strong {
  color: var(--text-main);
  font-weight: 600;
}

.hero-cta-group {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 3.5rem;
}

/* Primary Button */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--accent-gradient);
  color: #fff;
  text-decoration: none;
  font-weight: 700;
  font-size: 1rem;
  padding: 0.85rem 1.85rem;
  border-radius: 12px;
  box-shadow: 0 8px 30px rgba(99, 102, 241, 0.4), inset 0 1px 0 rgba(255, 255, 255, 0.25);
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  border: none;
  cursor: pointer;
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 35px rgba(99, 102, 241, 0.6), inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.btn-arrow {
  transition: transform 0.2s ease;
}

.btn-primary:hover .btn-arrow {
  transform: translateX(4px);
}

.btn-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-main);
  text-decoration: none;
  font-weight: 600;
  font-size: 1rem;
  padding: 0.85rem 1.85rem;
  border-radius: 12px;
  transition: all 0.25s ease;
}

.btn-secondary:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-2px);
}

/* Platform Chips */
.supported-platforms {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  flex-wrap: wrap;
}

.platform-label {
  font-size: 0.85rem;
  color: var(--text-dim);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.platform-tags {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.platform-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.45rem;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  padding: 0.4rem 0.85rem;
  border-radius: 8px;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.25s ease;
}

.platform-chip:hover {
  border-color: rgba(255, 255, 255, 0.25);
  color: #fff;
  transform: translateY(-1px);
}

.platform-chip.ig:hover { color: #f43f5e; border-color: #f43f5e; box-shadow: 0 0 12px rgba(244, 63, 94, 0.3); }
.platform-chip.tiktok:hover { color: #06b6d4; border-color: #06b6d4; box-shadow: 0 0 12px rgba(6, 182, 212, 0.3); }
.platform-chip.fb:hover { color: #3b82f6; border-color: #3b82f6; box-shadow: 0 0 12px rgba(59, 130, 246, 0.3); }
.platform-chip.threads:hover { color: #e2e8f0; border-color: #e2e8f0; }

/* ==========================================================================
   Simulator Section (Interactive Playground)
   ========================================================================== */
.simulator-section {
  position: relative;
  z-index: 1;
  padding: 4.5rem 1.5rem;
}

.section-container {
  max-width: 1100px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3rem;
}

.sub-badge {
  display: inline-block;
  color: #38bdf8;
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  color: var(--text-main);
  margin-bottom: 0.75rem;
}

.section-subtitle {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 650px;
  margin: 0 auto;
}

.simulator-card {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-glow);
  border-radius: 20px;
  padding: 1.75rem;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5), 0 0 40px rgba(139, 92, 246, 0.15);
}

.box-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1.25rem;
}

.box-tag {
  font-size: 0.8rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--text-dim);
}

.platform-toggle {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  padding: 0.25rem 0.65rem;
  border-radius: 6px;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.active-dot {
  width: 6px;
  height: 6px;
  background: #e11d48;
  border-radius: 50%;
}

.target-card {
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  padding: 1.25rem;
  margin-bottom: 1.5rem;
}

.target-author {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.author-avatar {
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, #d97706, #92400e);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.author-meta {
  display: flex;
  flex-direction: column;
}

.author-name {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-main);
}

.author-time {
  font-size: 0.75rem;
  color: var(--text-dim);
}

.target-content {
  font-size: 0.92rem;
  color: #cbd5e1;
  line-height: 1.55;
  margin-bottom: 1rem;
}

.target-stats {
  display: flex;
  gap: 1rem;
  font-size: 0.78rem;
  color: var(--text-dim);
  border-top: 1px solid rgba(255, 255, 255, 0.05);
  padding-top: 0.65rem;
}

/* Persona Selectors */
.persona-section {
  margin-bottom: 1.5rem;
}

.persona-label {
  display: block;
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-muted);
  margin-bottom: 0.65rem;
}

.persona-options {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.5rem;
}

.persona-btn {
  background: rgba(255, 255, 255, 0.03);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  font-family: var(--font-main);
  font-size: 0.8rem;
  font-weight: 600;
  padding: 0.55rem 0.75rem;
  border-radius: 8px;
  cursor: pointer;
  transition: all 0.2s ease;
  text-align: left;
}

.persona-btn:hover {
  background: rgba(255, 255, 255, 0.07);
  color: var(--text-main);
}

.persona-btn.active {
  background: rgba(139, 92, 246, 0.18);
  border-color: #8b5cf6;
  color: #c084fc;
  box-shadow: 0 0 12px rgba(139, 92, 246, 0.25);
}

.btn-generate {
  width: 100%;
  background: var(--accent-gradient);
  border: none;
  color: #fff;
  font-family: var(--font-main);
  font-weight: 700;
  font-size: 0.95rem;
  padding: 0.8rem;
  border-radius: 10px;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  transition: all 0.25s ease;
}

.btn-generate:hover {
  opacity: 0.95;
  box-shadow: 0 4px 20px rgba(99, 102, 241, 0.4);
}

/* Right: Terminal Output */
.latency-badge {
  font-size: 0.75rem;
  color: #38bdf8;
  background: rgba(6, 182, 212, 0.1);
  border: 1px solid rgba(6, 182, 212, 0.25);
  padding: 0.2rem 0.5rem;
  border-radius: 4px;
}

.terminal-view {
  background: #030712;
  border: 1px solid var(--border-subtle);
  border-radius: 12px;
  overflow: hidden;
  height: calc(100% - 95px);
  display: flex;
  flex-direction: column;
}

.terminal-bar {
  background: #0b0f19;
  padding: 0.65rem 1rem;
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.circle {
  width: 9px;
  height: 9px;
  border-radius: 50%;
}
.circle.red { background: #ef4444; }
.circle.yellow { background: #eab308; }
.circle.green { background: #22c55e; }

.terminal-title {
  margin-left: 0.5rem;
  font-family: monospace;
  font-size: 0.75rem;
  color: var(--text-dim);
}

.terminal-body {
  padding: 1.25rem;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  font-family: monospace;
  font-size: 0.8rem;
}

.log-line.text-muted { color: #64748b; }
.log-line.text-success { color: #34d399; font-weight: 600; }

.comment-bubble {
  margin-top: 0.75rem;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.3);
  border-radius: 12px;
  padding: 1rem;
  font-family: var(--font-main);
  animation: fadeIn 0.4s ease;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.bubble-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 0.5rem;
}

.bot-account-name {
  font-size: 0.82rem;
  font-weight: 700;
  color: #c084fc;
}

.verified-human-badge {
  font-size: 0.72rem;
  font-weight: 700;
  color: #10b981;
  background: rgba(16, 185, 129, 0.15);
  padding: 0.15rem 0.45rem;
  border-radius: 4px;
}

.bubble-text {
  font-size: 0.92rem;
  color: #f1f5f9;
  line-height: 1.5;
}

.stealth-features-mini {
  display: flex;
  gap: 1rem;
  margin-top: 1rem;
}

.mini-feat {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  font-size: 0.78rem;
  color: var(--text-dim);
}

/* ==========================================================================
   Features Grid
   ========================================================================== */
.features-section {
  position: relative;
  z-index: 1;
  padding: 5rem 1.5rem;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1.5rem;
}

.feature-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 16px;
  padding: 2rem;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  transition: all 0.3s ease;
}

.feature-card:hover {
  background: var(--bg-card-hover);
  border-color: rgba(255, 255, 255, 0.2);
  transform: translateY(-4px);
  box-shadow: 0 16px 32px rgba(0, 0, 0, 0.4);
}

.feat-card-icon {
  width: 52px;
  height: 52px;
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 1.25rem;
}

.feat-card-icon.violet { background: rgba(139, 92, 246, 0.15); border: 1px solid rgba(139, 92, 246, 0.3); }
.feat-card-icon.cyan { background: rgba(6, 182, 212, 0.15); border: 1px solid rgba(6, 182, 212, 0.3); }
.feat-card-icon.emerald { background: rgba(16, 185, 129, 0.15); border: 1px solid rgba(16, 185, 129, 0.3); }
.feat-card-icon.amber { background: rgba(245, 158, 11, 0.15); border: 1px solid rgba(245, 158, 11, 0.3); }
.feat-card-icon.rose { background: rgba(244, 63, 94, 0.15); border: 1px solid rgba(244, 63, 94, 0.3); }
.feat-card-icon.blue { background: rgba(59, 130, 246, 0.15); border: 1px solid rgba(59, 130, 246, 0.3); }

.feat-card-title {
  font-size: 1.2rem;
  color: var(--text-main);
  margin-bottom: 0.65rem;
}

.feat-card-desc {
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* ==========================================================================
   CTA Section
   ========================================================================== */
.cta-section {
  position: relative;
  z-index: 1;
  padding: 4rem 1.5rem 6rem;
}

.cta-card {
  max-width: 900px;
  margin: 0 auto;
  background: radial-gradient(circle at top, rgba(139, 92, 246, 0.25) 0%, rgba(15, 23, 42, 0.8) 100%);
  border: 1px solid var(--border-glow);
  border-radius: 24px;
  padding: 3.5rem 2rem;
  text-align: center;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

.cta-title {
  font-size: clamp(2rem, 4vw, 2.75rem);
  margin-bottom: 1rem;
}

.cta-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 600px;
  margin: 0 auto 2rem;
}

.cta-form {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  max-width: 520px;
  margin: 0 auto;
  flex-wrap: wrap;
}

.cta-input {
  flex: 1;
  min-width: 260px;
  background: rgba(3, 7, 18, 0.7);
  border: 1px solid var(--border-subtle);
  color: #fff;
  padding: 0.85rem 1.25rem;
  border-radius: 12px;
  font-family: var(--font-main);
  font-size: 0.95rem;
  outline: none;
  transition: all 0.25s ease;
}

.cta-input:focus {
  border-color: #8b5cf6;
  box-shadow: 0 0 16px rgba(139, 92, 246, 0.4);
}

.form-feedback {
  margin-top: 1rem;
  font-size: 0.88rem;
  color: #34d399;
}

/* ==========================================================================
   Footer
   ========================================================================== */
.footer {
  border-top: 1px solid var(--border-subtle);
  padding: 2.5rem 1.5rem;
  background: #04060a;
  position: relative;
  z-index: 1;
}

.footer-container {
  max-width: 1200px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 1.5rem;
}

.footer-tagline {
  color: var(--text-dim);
  font-size: 0.85rem;
  margin-top: 0.35rem;
}

.footer-right {
  font-size: 0.85rem;
  color: var(--text-dim);
}

/* ==========================================================================
   Responsive Breakpoints
   ========================================================================== */
@media (max-width: 868px) {
  .simulator-card {
    grid-template-columns: 1fr;
  }

  .nav-links {
    display: none;
  }
}