@import url('https://fonts.googleapis.com/css2?family=Prompt:ital,wght@0,300;0,400;0,500;0,600;0,700;0,800;1,400&family=Noto+Sans+Thai:wght@300;400;500;600;700;800&family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --font-prompt: 'Prompt', 'Noto Sans Thai', sans-serif;
  --font-inter: 'Inter', sans-serif;
  
  /* KP Cyber Brand Palette */
  --kp-navy-dark: #070b19;
  --kp-navy-mid: #0d132b;
  --kp-navy-light: #1c2541;
  
  --kp-purple-dark: #4c1d95;
  --kp-purple-main: #6d28d9;
  --kp-purple-light: #8b5cf6;
  --kp-purple-soft: #f5f3ff;
  
  --kp-cyan-deep: #0284c7;
  --kp-cyan-bright: #06b6d4;
  --kp-cyan-neon: #00f2fe;
  --kp-cyan-soft: #ecfeff;
  
  --kp-line-green: #06c755;
  --kp-line-green-hover: #05b04b;
  --kp-line-soft: #ecfdf5;

  --kp-bg-main: #ffffff;
  --kp-bg-surface: #f8fafc;
  --kp-bg-card: #ffffff;
  --kp-border-subtle: #e2e8f0;
  --kp-text-heading: #0f172a;
  --kp-text-body: #334155;
  --kp-text-muted: #64748b;
}

* {
  box-sizing: border-box;
  font-family: var(--font-prompt);
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

body {
  background-color: #ffffff;
  color: #334155;
  overflow-x: hidden;
  font-size: 16px;
  line-height: 1.6;
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
::-webkit-scrollbar-track {
  background: #f8fafc;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 9999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #8b5cf6;
}

/* Brand Gradients */
.kp-gradient-text {
  background: linear-gradient(135deg, #1e1b4b 0%, #6d28d9 45%, #0284c7 80%, #00f2fe 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.kp-gradient-accent {
  background: linear-gradient(135deg, #6d28d9 0%, #0284c7 60%, #06b6d4 100%);
}

.kp-gradient-hero {
  background: radial-gradient(circle at 50% -20%, rgba(109, 40, 217, 0.08) 0%, rgba(2, 132, 199, 0.05) 50%, rgba(255, 255, 255, 0) 80%);
}

.kp-gradient-card-glow {
  position: relative;
}
.kp-gradient-card-glow::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: inherit;
  padding: 1.5px;
  background: linear-gradient(135deg, rgba(109, 40, 217, 0.35), rgba(2, 132, 199, 0.25), rgba(0, 242, 254, 0.35));
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
  pointer-events: none;
  opacity: 0.6;
  transition: opacity 0.3s ease;
}
.kp-gradient-card-glow:hover::before {
  opacity: 1;
}

/* Brand Button Styles */
.kp-btn-primary {
  background: linear-gradient(135deg, #1c2541 0%, #6d28d9 50%, #0284c7 100%);
  color: #ffffff;
  font-weight: 600;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 4px 16px rgba(109, 40, 217, 0.3);
}
.kp-btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(109, 40, 217, 0.45);
  background: linear-gradient(135deg, #0b132b 0%, #7c3aed 50%, #06b6d4 100%);
}
.kp-btn-primary:active {
  transform: translateY(0);
}

.kp-btn-line {
  background-color: var(--kp-line-green);
  color: #ffffff;
  font-weight: 600;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(6, 199, 85, 0.25);
}
.kp-btn-line:hover {
  background-color: var(--kp-line-green-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 20px rgba(6, 199, 85, 0.35);
}

.kp-btn-secondary {
  background-color: #ffffff;
  color: var(--kp-navy-mid);
  border: 1.5px solid #e2e8f0;
  font-weight: 600;
  transition: all 0.2s ease;
}
.kp-btn-secondary:hover {
  border-color: #cbd5e1;
  background-color: #f8fafc;
  transform: translateY(-1px);
}

/* Pixel / Grid Motifs */
.pixel-grid-bg {
  background-image: radial-gradient(rgba(109, 40, 217, 0.12) 1px, transparent 1px);
  background-size: 24px 24px;
}

/* Audio Recording Pulse */
@keyframes voice-wave {
  0%, 100% { height: 6px; }
  50% { height: 26px; }
}
.voice-wave-bar {
  width: 3px;
  background: #6d28d9;
  border-radius: 3px;
  animation: voice-wave 1s ease-in-out infinite;
}
.voice-wave-bar:nth-child(2) { animation-delay: 0.15s; }
.voice-wave-bar:nth-child(3) { animation-delay: 0.3s; }
.voice-wave-bar:nth-child(4) { animation-delay: 0.45s; }
.voice-wave-bar:nth-child(5) { animation-delay: 0.6s; }

/* Subtle Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(8px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-fade-in {
  animation: fadeIn 0.35s cubic-bezier(0.16, 1, 0.3, 1) forwards;
}

@keyframes pulseGlow {
  0%, 100% { box-shadow: 0 0 0 0 rgba(109, 40, 217, 0.4); }
  50% { box-shadow: 0 0 0 10px rgba(109, 40, 217, 0); }
}
.animate-pulse-glow {
  animation: pulseGlow 2.5s infinite;
}

/* Safe Area for Mobile */
.safe-pb {
  padding-bottom: calc(env(safe-area-inset-bottom, 0px) + 12px);
}

@media (max-width: 768px) {
  .mobile-action-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 45;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(12px);
    border-top: 1px solid #e2e8f0;
    padding: 10px 16px calc(env(safe-area-inset-bottom, 0px) + 10px) 16px;
    box-shadow: 0 -4px 20px rgba(0,0,0,0.06);
  }
}