@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&family=Noto+Sans+JP:wght@300;400;500;700&display=swap');

/* --- CSS Variables & Design System --- */
:root {
  --font-family: 'Outfit', 'Noto Sans JP', sans-serif;
  
  /* Modern HSL Color Palette */
  --bg-main: hsl(224, 71%, 4%);
  --bg-card: hsla(222, 47%, 10%, 0.5);
  --bg-card-hover: hsla(222, 47%, 15%, 0.7);
  --border-color: rgba(255, 255, 255, 0.06);
  --border-color-glow: rgba(99, 102, 241, 0.2);
  
  --primary: hsl(250, 85%, 65%);
  --primary-glow: hsla(250, 85%, 65%, 0.35);
  --primary-light: hsl(250, 100%, 75%);
  
  --success: hsl(160, 84%, 39%);
  --success-glow: hsla(160, 84%, 39%, 0.3);
  
  --warning: hsl(38, 92%, 50%);
  --warning-glow: hsla(38, 92%, 50%, 0.3);
  
  --danger: hsl(350, 89%, 60%);
  --danger-glow: hsla(350, 89%, 60%, 0.3);
  
  --info: hsl(199, 89%, 48%);
  --info-glow: hsla(199, 89%, 48%, 0.3);
  
  /* Neutrals */
  --text-main: hsl(210, 40%, 96%);
  --text-muted: hsl(215, 20%, 65%);
  
  /* Shadow & Blur System */
  --glass-blur: blur(20px);
  --shadow-sm: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.3), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-glow: 0 0 20px -2px var(--primary-glow);
  
  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 16px;
  --radius-lg: 24px;
}

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

body {
  font-family: var(--font-family);
  background-color: var(--bg-main);
  background-image: 
    radial-gradient(at 0% 0%, hsla(253, 16%, 7%, 1) 0, transparent 50%),
    radial-gradient(at 50% 0%, hsla(250, 85%, 65%, 0.1) 0, transparent 60%),
    radial-gradient(at 100% 100%, hsla(199, 89%, 48%, 0.05) 0, transparent 50%);
  background-attachment: fixed;
  color: var(--text-main);
  min-height: 100vh;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}

/* --- Layout Utility Classes --- */
.app-container {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

header.app-header {
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur);
  position: sticky;
  top: 0;
  z-index: 100;
  background-color: rgba(15, 23, 42, 0.4);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: linear-gradient(135deg, var(--primary), var(--info));
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-glow);
}

.logo-icon svg {
  width: 24px;
  height: 24px;
  fill: #fff;
}

.logo-text {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: -0.5px;
  background: linear-gradient(to right, #fff, var(--text-muted));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.nav-links {
  display: flex;
  gap: 1rem;
}

.nav-link {
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: all 0.3s ease;
  border: 1px solid transparent;
}

.nav-link:hover, .nav-link.active {
  color: var(--text-main);
  background-color: var(--border-color);
  border-color: rgba(255, 255, 255, 0.05);
}

.nav-link.active {
  box-shadow: 0 0 10px rgba(99, 102, 241, 0.1);
}

main.app-main {
  flex: 1;
  padding: 2.5rem 2rem;
  max-width: 1400px;
  width: 100%;
  margin: 0 auto;
}

footer.app-footer {
  padding: 2rem;
  text-align: center;
  font-size: 0.85rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-color);
  background-color: rgba(15, 23, 42, 0.2);
}

/* --- Premium Reusable UI Components --- */

/* Glass Cards */
.glass-card {
  background-color: var(--bg-card);
  backdrop-filter: var(--glass-blur);
  -webkit-backdrop-filter: var(--glass-blur);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 1.75rem;
  box-shadow: var(--shadow-sm);
  transition: all 0.4s cubic-bezier(0.16, 1, 0.3, 1);
  position: relative;
  overflow: hidden;
}

.glass-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.03), transparent 70%);
  pointer-events: none;
}

.glass-card.interactive:hover {
  transform: translateY(-4px);
  border-color: var(--border-color-glow);
  box-shadow: var(--shadow-lg), var(--shadow-glow);
  background-color: var(--bg-card-hover);
}

/* Glass Header Cards for Dashboards */
.glass-header {
  border-radius: var(--radius-md);
  padding: 1.5rem 2rem;
  margin-bottom: 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: linear-gradient(90deg, rgba(30, 41, 59, 0.5), rgba(15, 23, 42, 0.3));
  border: 1px solid var(--border-color);
  backdrop-filter: var(--glass-blur);
}

.glass-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* Beautiful Status Badge */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.35rem 0.75rem;
  border-radius: 9999px;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: -0.2px;
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: currentColor;
}

.badge-live {
  background-color: var(--danger-glow);
  color: var(--danger);
  animation: pulse-border 2s infinite;
}

.badge-online {
  background-color: var(--success-glow);
  color: var(--success);
}

.badge-warning {
  background-color: var(--warning-glow);
  color: var(--warning);
}

.badge-info {
  background-color: var(--info-glow);
  color: var(--info);
}

/* Modern Input Elements */
.form-group {
  margin-bottom: 1.25rem;
}

.form-label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  margin-bottom: 0.5rem;
  color: var(--text-muted);
}

.form-control {
  width: 100%;
  background: rgba(15, 23, 42, 0.6);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-sm);
  padding: 0.75rem 1rem;
  font-family: inherit;
  color: var(--text-main);
  transition: all 0.3s ease;
  font-size: 0.95rem;
}

.form-control:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.15);
  background: rgba(15, 23, 42, 0.8);
}

/* Glowing Interactive Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
  border: 1px solid transparent;
  font-family: inherit;
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary), hsl(250, 95%, 70%));
  color: #fff;
  box-shadow: var(--shadow-glow);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 0 25px -2px hsla(250, 85%, 65%, 0.5);
}

.btn-secondary {
  background-color: rgba(255, 255, 255, 0.05);
  border-color: var(--border-color);
  color: var(--text-main);
}

.btn-secondary:hover {
  background-color: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.15);
}

.btn-danger {
  background-color: var(--danger);
  color: white;
  box-shadow: 0 4px 10px var(--danger-glow);
}

.btn-danger:hover {
  background-color: hsl(350, 89%, 50%);
  box-shadow: 0 6px 15px var(--danger-glow);
  transform: translateY(-2px);
}

.btn-icon {
  padding: 0.5rem;
  border-radius: var(--radius-sm);
}

/* --- Grid & Panel Layouts --- */
.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 1.5rem;
}

.col-12 { grid-column: span 12; }
.col-8 { grid-column: span 8; }
.col-4 { grid-column: span 4; }
.col-6 { grid-column: span 6; }
.col-3 { grid-column: span 3; }

@media (max-width: 1024px) {
  .col-8, .col-4, .col-6, .col-3 {
    grid-column: span 12;
  }
}

/* --- Animations --- */
@keyframes pulse-border {
  0% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0.4);
  }
  70% {
    box-shadow: 0 0 0 8px rgba(239, 68, 68, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(239, 68, 68, 0);
  }
}

@keyframes slideUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade-in {
  animation: slideUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}