:root {
  --bg: #081016;
  --bg-deep: #050a0e;
  --panel: rgba(13, 25, 34, 0.86);
  --panel-solid: #0d1922;
  --line: rgba(145, 177, 191, 0.16);
  --line-strong: rgba(101, 225, 198, 0.32);
  --text: #e7f0f2;
  --muted: #8fa4ad;
  --accent: #65e1c6;
  --accent-deep: #1da88d;
  --amber: #f2c76b;
  --danger: #ff7d75;
  --blue: #7fb7ff;
  --radius: 18px;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.35);
  color-scheme: dark;
  font-family: Inter, "Noto Sans KR", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  min-width: 320px;
  min-height: 100vh;
  margin: 0;
  color: var(--text);
  background:
    radial-gradient(circle at 75% 0%, rgba(43, 129, 134, 0.13), transparent 36rem),
    linear-gradient(145deg, var(--bg-deep), var(--bg));
}

button,
input,
select,
textarea {
  font: inherit;
}

button {
  cursor: pointer;
}

.hidden {
  display: none !important;
}

.atmosphere {
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 48px 48px;
  mask-image: linear-gradient(to bottom, black, transparent 80%);
}

.login-view {
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
}

.login-card {
  width: min(440px, 100%);
  padding: 42px;
  border: 1px solid var(--line);
  border-radius: 26px;
  background: rgba(10, 20, 28, 0.92);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.brand-mark {
  width: 58px;
  height: 58px;
  display: grid;
  place-items: center;
  margin-bottom: 28px;
  border: 1px solid var(--line-strong);
  border-radius: 16px;
  color: var(--accent);
  font-weight: 800;
  letter-spacing: 0.12em;
  background: linear-gradient(145deg, rgba(101, 225, 198, 0.14), transparent);
  box-shadow: inset 0 0 28px rgba(101, 225, 198, 0.08);
}

.brand-mark.small {
  width: 42px;
  height: 42px;
  margin: 0;
  border-radius: 12px;
  font-size: 13px;
}

.eyebrow {
  margin: 0 0 7px;
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.18em;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  margin-bottom: 12px;
  font-size: clamp(26px, 4vw, 38px);
  letter-spacing: -0.04em;
}

h2 {
  margin-bottom: 0;
  font-size: 20px;
  letter-spacing: -0.02em;
}

.muted {
  color: var(--muted);
  line-height: 1.65;
}

.stack {
  display: grid;
  gap: 16px;
}

.login-card .stack {
  margin-top: 32px;
}

label {
  display: grid;
  gap: 8px;
  color: #b9c9cf;
  font-size: 13px;
  font-weight: 600;
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 11px;
  outline: none;
  color: var(--text);
  background: rgba(2, 9, 13, 0.66);
  transition: border-color 160ms ease, box-shadow 160ms ease;
}

input,
select {
  min-height: 44px;
  padding: 0 13px;
}

textarea {
  resize: vertical;
  padding: 12px 13px;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(101, 225, 198, 0.1);
}

button {
  min-height: 40px;
  padding: 0 15px;
  border: 1px solid transparent;
  border-radius: 10px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
  transition: transform 150ms ease, border-color 150ms ease, background 150ms ease;
}

button:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.5;
  transform: none;
}

.primary {
  color: #04110e;
  font-weight: 800;
  background: linear-gradient(135deg, var(--accent), #8ef2d7);
}

.wide {
  width: 100%;
}

.ghost {
  border-color: var(--line);
  background: transparent;
}

.form-error {
  min-height: 20px;
  margin: 0;
  color: var(--danger);
  font-size: 13px;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 244px minmax(0, 1fr);
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  display: flex;
  flex-direction: column;
  padding: 24px 18px;
  border-right: 1px solid var(--line);
  background: rgba(5, 12, 17, 0.84);
  backdrop-filter: blur(20px);
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 13px;
  padding: 0 8px 28px;
  border-bottom: 1px solid var(--line);
}

.sidebar-brand strong,
.sidebar-brand span {
  display: block;
}

.sidebar-brand span {
  margin-top: 3px;
  color: var(--muted);
  font-size: 12px;
}

nav {
  display: grid;
  gap: 7px;
  margin-top: 24px;
}

.nav-item {
  display: flex;
  align-items: center;
  gap: 12px;
  min-height: 46px;
  padding: 0 12px;
  border-color: transparent;
  color: var(--muted);
  text-align: left;
  background: transparent;
}

.nav-item span {
  color: #536973;
  font-size: 10px;
  letter-spacing: 0.12em;
}

.nav-item.active {
  color: var(--text);
  border-color: var(--line-strong);
  background: rgba(101, 225, 198, 0.08);
}

.nav-item.active span {
  color: var(--accent);
}

.sidebar-footer {
  margin-top: auto;
  padding: 20px 8px 0;
  border-top: 1px solid var(--line);
}

.operator {
  margin-bottom: 13px;
}

.operator span,
.operator small {
  display: block;
}

.operator span {
  overflow: hidden;
  font-size: 13px;
  text-overflow: ellipsis;
}

.operator small {
  margin-top: 4px;
  color: var(--accent);
  font-size: 10px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.workspace {
  min-width: 0;
  padding: 30px clamp(20px, 4vw, 54px) 54px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 30px;
}

.topbar h1 {
  margin: 0;
  font-size: 30px;
}

.server-state {
  display: flex;
  align-items: center;
  gap: 9px;
  color: var(--muted);
  font-size: 12px;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--amber);
  box-shadow: 0 0 10px rgba(242, 199, 107, 0.6);
}

.status-dot.online {
  background: var(--accent);
  box-shadow: 0 0 12px rgba(101, 225, 198, 0.7);
}

.status-dot.offline {
  background: var(--danger);
  box-shadow: 0 0 12px rgba(255, 125, 117, 0.65);
}

.icon-button {
  min-width: 38px;
  padding: 0;
  font-size: 20px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 15px;
  margin-bottom: 18px;
}

.metric-card,
.surface {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--panel);
  box-shadow: 0 12px 36px rgba(0, 0, 0, 0.12);
  backdrop-filter: blur(16px);
}

.metric-card {
  min-height: 148px;
  padding: 22px;
}

.metric-card .metric-label {
  color: var(--muted);
  font-size: 12px;
}

.metric-card strong {
  display: block;
  margin: 20px 0 7px;
  font-size: 34px;
  letter-spacing: -0.04em;
}

.metric-card small {
  color: #637b85;
}

.skeleton {
  background:
    linear-gradient(100deg, transparent 30%, rgba(255, 255, 255, 0.035) 50%, transparent 70%),
    var(--panel);
  background-size: 220% 100%;
  animation: shimmer 1.4s infinite;
}

@keyframes shimmer {
  to {
    background-position-x: -220%;
  }
}

.split-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 18px;
}

.surface {
  padding: 24px;
}

.feature-surface {
  border-color: var(--line-strong);
  background:
    radial-gradient(circle at 90% 0%, rgba(101, 225, 198, 0.1), transparent 18rem),
    var(--panel);
}

.surface-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 24px;
}

.chip,
.warning-chip,
.state-chip {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 0 9px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--accent);
  background: rgba(101, 225, 198, 0.07);
  font-size: 10px;
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap;
}

.warning-chip {
  color: var(--amber);
  border-color: rgba(242, 199, 107, 0.28);
  background: rgba(242, 199, 107, 0.07);
}

.state-chip.offline,
.state-chip.failed {
  color: var(--danger);
  border-color: rgba(255, 125, 117, 0.28);
  background: rgba(255, 125, 117, 0.07);
}

.state-chip.neutral {
  color: var(--muted);
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.03);
}

.anomaly-name {
  margin-bottom: 8px;
  font-size: 28px;
  letter-spacing: -0.03em;
}

.modifier-row {
  display: flex;
  flex-wrap: wrap;
  gap: 9px;
  margin-top: 22px;
}

.modifier {
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 10px;
  color: #b8cbd1;
  font-size: 12px;
  background: rgba(0, 0, 0, 0.15);
}

.guard-list {
  display: grid;
  gap: 14px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.guard-list li {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 10px;
  color: #a9bbc2;
  font-size: 13px;
  line-height: 1.55;
}

.guard-list span {
  color: var(--accent);
  font-size: 10px;
  letter-spacing: 0.08em;
}

.search-form {
  display: flex;
  gap: 8px;
  width: min(440px, 100%);
}

.search-form button {
  min-width: 74px;
}

.table-wrap {
  overflow-x: auto;
  margin: 0 -8px -8px;
}

table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
}

th,
td {
  padding: 14px 12px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  vertical-align: middle;
}

th {
  color: #6f8791;
  font-size: 10px;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

tbody tr:last-child td {
  border-bottom: 0;
}

tbody tr:hover {
  background: rgba(255, 255, 255, 0.018);
}

.player-cell strong,
.player-cell small {
  display: block;
}

.player-cell small,
.identity-line {
  margin-top: 5px;
  color: #637983;
  font-family: "SFMono-Regular", Consolas, monospace;
  font-size: 11px;
}

.table-actions {
  display: flex;
  gap: 7px;
}

.table-actions button {
  min-height: 32px;
  padding: 0 10px;
  font-size: 11px;
}

.empty-state {
  padding: 28px 0;
  color: var(--muted);
  text-align: center;
}

.report-list {
  display: grid;
  gap: 12px;
}

.report-card {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 18px;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(3, 10, 14, 0.34);
}

.report-card.resolved {
  opacity: 0.58;
}

.report-card blockquote {
  margin: 12px 0;
  padding: 11px 13px;
  border-left: 2px solid var(--line-strong);
  color: #c8d5d9;
  background: rgba(101, 225, 198, 0.035);
}

.report-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  color: #718892;
  font-size: 11px;
}

.form-surface {
  max-width: 900px;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.span-2 {
  grid-column: 1 / -1;
}

.form-actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-top: 8px;
  padding-top: 20px;
  border-top: 1px solid var(--line);
}

.form-actions p {
  margin: 0;
  font-size: 12px;
}

dialog {
  width: min(520px, calc(100% - 32px));
  padding: 0;
  border: 1px solid var(--line-strong);
  border-radius: 20px;
  color: var(--text);
  background: var(--panel-solid);
  box-shadow: var(--shadow);
}

dialog::backdrop {
  background: rgba(0, 5, 8, 0.76);
  backdrop-filter: blur(7px);
}

.dialog-card {
  display: grid;
  gap: 17px;
  padding: 24px;
}

.dialog-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 12px;
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 9px;
  padding-top: 8px;
}

.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 20;
  max-width: min(420px, calc(100% - 48px));
  padding: 13px 16px;
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  opacity: 0;
  color: #dffbf3;
  background: #10251f;
  box-shadow: var(--shadow);
  transform: translateY(10px);
  pointer-events: none;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translateY(0);
}

.toast.error {
  color: #ffe4e2;
  border-color: rgba(255, 125, 117, 0.35);
  background: #2b1516;
}

@media (max-width: 1040px) {
  .metric-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .app-shell {
    display: block;
  }

  .sidebar {
    position: static;
    width: 100%;
    height: auto;
    padding: 15px;
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .sidebar-brand {
    padding-bottom: 14px;
  }

  nav {
    grid-template-columns: repeat(5, minmax(0, 1fr));
    gap: 4px;
    margin-top: 12px;
    overflow-x: auto;
  }

  .nav-item {
    min-width: 88px;
    justify-content: center;
    padding: 0 8px;
    font-size: 11px;
  }

  .nav-item span {
    display: none;
  }

  .sidebar-footer {
    display: none;
  }

  .workspace {
    padding: 22px 15px 38px;
  }

  .topbar,
  .surface-heading.responsive,
  .form-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .server-state {
    align-self: flex-start;
  }

  .metric-grid,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .span-2 {
    grid-column: auto;
  }

  .surface {
    padding: 18px;
  }

  .report-card {
    grid-template-columns: 1fr;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}