:root {
  --bg: #0b1119;
  --surface: #131b26;
  --surface-alt: #0f1620;
  --border: #223041;
  --accent: #2bb5a8;
  --accent-hover: #24988d;
  --text: #eef3f7;
  --muted: #8aa0b7;
  --danger: #ef5350;
  --success: #2ecc71;
  --warn: #f1c40f;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  min-height: 100vh;
  background:
    radial-gradient(circle at top right, rgba(43, 181, 168, 0.18), transparent 30%),
    linear-gradient(180deg, #071018 0%, #0b1119 45%, #0f1620 100%);
  color: var(--text);
  font-family: "Segoe UI", system-ui, -apple-system, sans-serif;
}

.hidden {
  display: none !important;
}

.btn {
  border: 1px solid transparent;
  border-radius: 10px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 600;
  padding: 10px 16px;
  transition: all 0.18s ease;
}

.btn-sm {
  padding: 7px 12px;
  font-size: 12px;
}

.btn-primary {
  background: var(--accent);
  color: #041514;
}

.btn-primary:hover {
  background: var(--accent-hover);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.02);
  color: var(--muted);
  border-color: var(--border);
}

.btn-ghost:hover {
  color: var(--text);
  border-color: var(--accent);
}

.btn-block {
  width: 100%;
}

.login-wrapper {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.login-box {
  width: 100%;
  max-width: 380px;
  padding: 32px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 24px;
  background: rgba(10, 16, 24, 0.92);
  backdrop-filter: blur(14px);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.35);
}

.login-box h1 {
  font-size: 24px;
  margin-bottom: 24px;
}

.login-box .field {
  margin-bottom: 16px;
}

.login-box label {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 13px;
}

.login-box input,
.sidebar-filters input,
.url-bar input {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: rgba(9, 14, 20, 0.9);
  color: var(--text);
  font-size: 14px;
  padding: 12px 14px;
  outline: none;
}

.login-box input:focus,
.sidebar-filters input:focus,
.url-bar input:focus {
  border-color: var(--accent);
}

.login-error {
  margin-bottom: 16px;
  color: var(--danger);
  font-size: 13px;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 360px 1fr;
}

.sidebar {
  background: rgba(8, 13, 19, 0.92);
  border-right: 1px solid rgba(255, 255, 255, 0.06);
  display: flex;
  flex-direction: column;
}

.sidebar-header {
  padding: 28px 24px 20px;
  display: flex;
  gap: 16px;
  align-items: flex-start;
  justify-content: space-between;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.sidebar-header h1 {
  font-size: 22px;
  line-height: 1.1;
  margin-bottom: 6px;
}

.sidebar-subtitle {
  color: var(--muted);
  font-size: 13px;
}

.sidebar-filters {
  padding: 16px 20px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  display: grid;
  gap: 10px;
}

.screen-list {
  flex: 1;
  overflow-y: auto;
  padding: 14px;
}

.empty-list {
  padding: 18px;
  border: 1px dashed var(--border);
  border-radius: 16px;
  color: var(--muted);
  text-align: center;
  font-size: 13px;
}

.screen-group {
  margin-bottom: 18px;
}

.screen-group-title {
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.screen-group-title span {
  color: rgba(255, 255, 255, 0.32);
  font-weight: 400;
  margin-left: 6px;
}

.screen-card {
  width: 100%;
  text-align: left;
  background: linear-gradient(180deg, rgba(18, 28, 40, 0.96), rgba(13, 21, 31, 0.96));
  border: 1px solid transparent;
  border-radius: 16px;
  color: var(--text);
  padding: 14px;
  margin-bottom: 10px;
  cursor: pointer;
}

.screen-card:hover,
.screen-card.active {
  border-color: rgba(43, 181, 168, 0.8);
  box-shadow: inset 0 0 0 1px rgba(43, 181, 168, 0.14);
}

.screen-card-top {
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 8px;
}

.screen-card-top strong {
  font-size: 15px;
}

.submeta {
  font-size: 12px;
  color: var(--muted);
  line-height: 1.5;
}

.screen-status {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 4px 8px;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.status-good {
  background: rgba(46, 204, 113, 0.12);
  color: var(--success);
}

.status-warn {
  background: rgba(241, 196, 15, 0.12);
  color: var(--warn);
}

.status-bad {
  background: rgba(239, 83, 80, 0.12);
  color: var(--danger);
}

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.viewer-header {
  display: flex;
  gap: 16px;
  justify-content: space-between;
  align-items: flex-start;
  padding: 28px 28px 18px;
}

.viewer-title-group h2 {
  font-size: 28px;
  margin-bottom: 8px;
}

.viewer-meta {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.5;
  max-width: 900px;
}

.viewer-actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  align-items: flex-start;
}

.viewer-preset-control {
  display: grid;
  gap: 4px;
  min-width: 220px;
}

.viewer-preset-label {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.viewer-preset-control select {
  width: 100%;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: rgba(9, 14, 20, 0.9);
  color: var(--text);
  font-size: 13px;
  padding: 9px 12px;
  outline: none;
}

.viewer-preset-control select:focus {
  border-color: var(--accent);
}

.viewer-preset-hint {
  color: var(--muted);
  font-size: 11px;
  line-height: 1.4;
}

.url-bar {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
  padding: 0 28px 18px;
}

.viewer {
  flex: 1;
  margin: 0 28px 28px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.06);
  background:
    radial-gradient(circle at top left, rgba(43, 181, 168, 0.12), transparent 25%),
    linear-gradient(180deg, rgba(10, 16, 24, 0.92), rgba(7, 11, 17, 0.96));
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 460px;
  position: relative;
}

.placeholder {
  max-width: 420px;
  padding: 24px;
  text-align: center;
  color: var(--muted);
  line-height: 1.6;
}

#screenCanvas {
  max-width: 100%;
  max-height: 100%;
  width: auto;
  height: auto;
  outline: none;
  display: block;
}

.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(4, 8, 12, 0.76);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  z-index: 20;
}

.modal {
  width: min(820px, 100%);
  background: #0a1119;
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.45);
}

.modal h2 {
  font-size: 22px;
  margin-bottom: 10px;
}

.modal-help {
  color: var(--muted);
  font-size: 13px;
  line-height: 1.6;
  margin-bottom: 16px;
}

.modal-help code {
  font-family: monospace;
  color: var(--text);
}

.modal textarea {
  width: 100%;
  min-height: 360px;
  resize: vertical;
  border-radius: 16px;
  border: 1px solid var(--border);
  background: #071018;
  color: var(--text);
  padding: 14px;
  outline: none;
  font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
  font-size: 13px;
  line-height: 1.5;
}

.modal-actions {
  margin-top: 16px;
  display: flex;
  gap: 10px;
  justify-content: flex-end;
  flex-wrap: wrap;
}

@media (max-width: 1080px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  }

  .screen-list {
    max-height: 280px;
  }
}

@media (max-width: 720px) {
  .sidebar-header,
  .viewer-header,
  .url-bar {
    padding-left: 18px;
    padding-right: 18px;
  }

  .viewer {
    margin: 0 18px 18px;
    min-height: 320px;
  }

  .viewer-header,
  .url-bar {
    grid-template-columns: 1fr;
    flex-direction: column;
  }
}