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

:root {
  --bg: #0b1220;
  --bg-elevated: #0f1729;
  --panel: #141d33;
  --panel-raised: #1a2440;
  --panel-border: #263252;
  --panel-border-soft: #1d2740;
  --text: #f3f6fb;
  --text-muted: #97a3bf;
  --text-faint: #647092;
  --accent: #2dd881;
  --accent-soft: #1f9d5f;
  --accent-dim: #14532d;
  --accent-rgb: 45, 216, 129;
  --warn: #f5a524;
  --crit: #f2495c;
  --info: #4cc9f0;

  --radius-xs: 6px;
  --radius-sm: 9px;
  --radius-md: 14px;
  --radius-lg: 22px;

  --font-ui: 'Fira Sans', system-ui, -apple-system, 'Segoe UI', sans-serif;
  --font-mono: 'Fira Code', ui-monospace, 'SFMono-Regular', Consolas, monospace;

  --shadow-ambient: 0 1px 2px rgba(2, 6, 15, 0.4), 0 12px 32px -12px rgba(2, 6, 15, 0.55);
  --shadow-glow: 0 0 0 1px rgba(var(--accent-rgb), 0.16), 0 8px 28px -8px rgba(var(--accent-rgb), 0.28);
  --ease: cubic-bezier(0.16, 1, 0.3, 1);
}

:root[data-theme='light'] {
  --bg: #eef1f7;
  --bg-elevated: #f6f8fc;
  --panel: #ffffff;
  --panel-raised: #f8fafc;
  --panel-border: #dde3ef;
  --panel-border-soft: #e7ebf3;
  --text: #101827;
  --text-muted: #55617a;
  --text-faint: #8994ac;
  --accent-dim: #c8f4dd;
  --shadow-ambient: 0 1px 2px rgba(16, 24, 39, 0.06), 0 12px 28px -14px rgba(16, 24, 39, 0.18);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  background:
    radial-gradient(ellipse 1200px 600px at 12% -10%, color-mix(in srgb, var(--accent) 7%, transparent), transparent 55%),
    radial-gradient(ellipse 900px 500px at 100% 0%, color-mix(in srgb, var(--info) 6%, transparent), transparent 50%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-ui);
  min-height: 100vh;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

/* 미세한 그레인 오버레이 — 완전 평면적인 다크 배경의 인위적인 느낌을 완화 */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  opacity: 0.035;
  mix-blend-mode: overlay;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='120' height='120'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

#__app,
body > * {
  position: relative;
  z-index: 1;
}

a {
  color: inherit;
}

button,
input,
select {
  font-family: inherit;
}

h1,
h2,
h3,
h4 {
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.15;
  text-wrap: balance;
  margin: 0;
}

p {
  text-wrap: pretty;
}

.mono,
.tabular {
  font-family: var(--font-mono);
  font-variant-numeric: tabular-nums;
  font-feature-settings: 'tnum' 1;
}

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
}

.skip-link {
  position: absolute;
  left: 12px;
  top: -48px;
  z-index: 100;
  padding: 10px 16px;
  border-radius: var(--radius-xs);
  background: var(--accent);
  color: #04140b;
  font-weight: 600;
  font-size: 0.85rem;
  transition: top 160ms var(--ease);
}

.skip-link:focus {
  top: 12px;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.45em;
  padding: 0.32em 0.75em;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  white-space: nowrap;
  border: 1px solid transparent;
}

.badge::before {
  content: '';
  width: 0.42em;
  height: 0.42em;
  border-radius: 50%;
  background: currentColor;
  box-shadow: 0 0 0 3px color-mix(in srgb, currentColor 20%, transparent);
}

.badge-ok {
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
  color: var(--accent);
}

.badge-warning {
  background: color-mix(in srgb, var(--warn) 14%, transparent);
  border-color: color-mix(in srgb, var(--warn) 30%, transparent);
  color: var(--warn);
}

.badge-critical {
  background: color-mix(in srgb, var(--crit) 14%, transparent);
  border-color: color-mix(in srgb, var(--crit) 30%, transparent);
  color: var(--crit);
}

.badge-info {
  background: color-mix(in srgb, var(--info) 14%, transparent);
  border-color: color-mix(in srgb, var(--info) 30%, transparent);
  color: var(--info);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.68em 1.35em;
  border-radius: var(--radius-xs);
  border: 1px solid var(--panel-border);
  background: var(--panel-raised);
  color: var(--text);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: background 160ms var(--ease), border-color 160ms var(--ease), transform 120ms var(--ease), box-shadow 160ms var(--ease);
}

.btn:hover {
  border-color: color-mix(in srgb, var(--accent) 55%, var(--panel-border));
  transform: translateY(-1px);
  box-shadow: var(--shadow-ambient);
}

.btn:active {
  transform: translateY(0) scale(0.98);
}

.btn:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.btn-primary {
  background: linear-gradient(180deg, var(--accent), var(--accent-soft));
  border-color: var(--accent-soft);
  color: #04140b;
}

.btn-primary:hover {
  box-shadow: var(--shadow-glow);
  filter: brightness(1.04);
}

.panel {
  background: linear-gradient(165deg, var(--panel-raised), var(--panel) 60%);
  border: 1px solid var(--panel-border-soft);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-ambient);
}

.skeleton {
  position: relative;
  overflow: hidden;
  background: var(--panel-raised);
  border-radius: var(--radius-sm);
}

.skeleton::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--text) 8%, transparent), transparent);
  animation: skeleton-sweep 1.4s infinite;
}

@keyframes skeleton-sweep {
  from {
    transform: translateX(-100%);
  }
  to {
    transform: translateX(100%);
  }
}

@media (prefers-reduced-motion: reduce) {
  * {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}