/* PLsim · 浅色清爽主题 */
:root {
  --bg-0: #ffffff;
  --bg-1: #f8fafc;
  --bg-2: #f1f5f9;
  --border: rgba(15, 23, 42, 0.08);
  --text: #0f172a;
  --muted: #64748b;
  --accent: #2563eb;
  --accent-dim: rgba(37, 99, 235, 0.1);
  --ok: #059669;
  --danger: #dc2626;
  --blue: #2563eb;
  --radius: 14px;
  --shadow: 0 12px 40px rgba(15, 23, 42, 0.06);
  --shadow-lg: 0 24px 60px rgba(15, 23, 42, 0.08);
  font-family: "DM Sans", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

.plsim-body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  color: var(--text);
  background: var(--bg-0);
  line-height: 1.55;
}

.plsim-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 100% 80% at 50% -30%, rgba(37, 99, 235, 0.06), transparent 50%),
    linear-gradient(180deg, #ffffff 0%, #f8fafc 45%, #f1f5f9 100%);
  pointer-events: none;
}

.plsim-body--home .plsim-bg {
  background: linear-gradient(180deg, #ffffff 0%, #f1f5f9 100%);
}

/* 登录 / 认证页 · 居中卡片 */
.plsim-body--auth .plsim-bg {
  background:
    radial-gradient(ellipse 90% 70% at 50% -20%, rgba(37, 99, 235, 0.12), transparent 55%),
    radial-gradient(ellipse 60% 50% at 100% 50%, rgba(59, 130, 246, 0.06), transparent 45%),
    radial-gradient(ellipse 50% 45% at 0% 80%, rgba(99, 102, 241, 0.05), transparent 40%),
    linear-gradient(165deg, #ffffff 0%, #f1f5f9 50%, #e8eef5 100%);
}

/* 已配置 Mapbox 时由底图承担主视觉，底层渐变减弱 */
.plsim-body--auth.plsim-body--auth-map .plsim-bg {
  opacity: 0.25;
}

/* 主内容叠在地图之上，背景透明才能看到整屏底图 */
.plsim-body--auth.plsim-body--auth-map .plsim-main--auth {
  background: transparent;
}

.plsim-main--auth {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.5rem, 4vw, 2.5rem) 1rem 2.5rem;
  min-height: calc(100vh - 5rem);
  min-height: calc(100dvh - 5rem);
  min-height: calc(100svh - 5rem);
}

/* 登录页：整屏固定背景层（地图 + 轻遮罩），低于顶栏 z-50 */
.plsim-auth-map-backdrop {
  position: fixed;
  inset: 0;
  width: 100vw;
  height: 100vh;
  min-height: 100dvh;
  z-index: 0;
  pointer-events: none;
}

.plsim-auth-map-backdrop .plsim-auth-map {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.plsim-auth-map-backdrop .plsim-auth-map .mapboxgl-map,
.plsim-auth-map-backdrop .plsim-auth-map .mapboxgl-canvas-container,
.plsim-auth-map-backdrop .plsim-auth-map .mapboxgl-canvas {
  width: 100% !important;
  height: 100% !important;
}

.plsim-auth-map-backdrop .plsim-auth-map .mapboxgl-ctrl-bottom-right,
.plsim-auth-map-backdrop .plsim-auth-map .mapboxgl-ctrl-bottom-left {
  pointer-events: auto;
}

.plsim-auth-map-backdrop .plsim-auth-map-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    160deg,
    rgba(255, 255, 255, 0.32) 0%,
    rgba(248, 250, 252, 0.22) 45%,
    rgba(241, 245, 249, 0.34) 100%
  );
}

.plsim-auth {
  position: relative;
  width: min(420px, 100%);
}

.plsim-auth-card {
  padding: clamp(1.5rem, 4vw, 2rem) clamp(1.35rem, 4vw, 1.85rem);
  border-radius: calc(var(--radius) + 4px);
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid rgba(255, 255, 255, 0.95);
  box-shadow:
    var(--shadow-lg),
    0 0 0 1px rgba(15, 23, 42, 0.04);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

.plsim-auth-brand {
  display: flex;
  gap: 1rem;
  align-items: flex-start;
  margin-bottom: 1.35rem;
}

.plsim-auth-logo {
  width: 3rem;
  height: 3rem;
  flex-shrink: 0;
  display: block;
  object-fit: contain;
  filter: drop-shadow(0 4px 12px rgba(37, 99, 235, 0.2));
}

.plsim-auth-brand-text {
  min-width: 0;
  flex: 1;
}

.plsim-auth-app {
  margin: 0 0 0.2rem;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  opacity: 0.9;
}

.plsim-auth-title {
  margin: 0 0 0.45rem;
  font-size: clamp(1.45rem, 3.5vw, 1.65rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.2;
  color: var(--text);
}

.plsim-auth-lead {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
  line-height: 1.5;
}

.plsim-auth-alert {
  margin-bottom: 1rem;
}

.plsim-form--auth {
  max-width: none;
}

.plsim-form--auth .plsim-field-group {
  margin-bottom: 0.15rem;
}

.plsim-form--auth .plsim-field-group:last-of-type .plsim-field {
  margin-bottom: 1.15rem;
}

.plsim-form--auth .plsim-field::placeholder {
  color: #94a3b8;
}

.plsim-btn-block {
  width: 100%;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}

.plsim-auth-footer {
  margin: 1.35rem 0 0;
  padding-top: 1.25rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.9rem;
  color: var(--muted);
}

.plsim-auth-footer a {
  color: var(--accent);
  font-weight: 600;
  text-decoration: none;
}

.plsim-auth-footer a:hover {
  text-decoration: underline;
}

.plsim-body--auth-map .plsim-footer {
  position: relative;
  z-index: 3;
}

.plsim-wrap {
  width: min(1120px, 100% - 2rem);
  margin-inline: auto;
}

.plsim-header {
  position: sticky;
  top: 0;
  z-index: 50;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(14px);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.8) inset;
}

.plsim-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}

.plsim-logo {
  display: flex;
  align-items: center;
  gap: 0.55rem;
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.plsim-logo-img {
  width: 2rem;
  height: 2rem;
  flex-shrink: 0;
  display: block;
  object-fit: contain;
}

.plsim-logo-text {
  line-height: 1.2;
}

.plsim-nav {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem 0.85rem;
  font-size: 0.92rem;
}

.plsim-nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.35rem 0.55rem;
  border-radius: 10px;
  transition: color 0.15s, background 0.15s;
}

.plsim-nav a:hover {
  color: var(--text);
  background: rgba(15, 23, 42, 0.05);
}

.plsim-nav a.is-active {
  color: var(--accent);
  background: var(--accent-dim);
}

.plsim-nav-admin {
  color: var(--accent) !important;
}

.plsim-nav-user {
  color: var(--muted);
  font-size: 0.85rem;
  max-width: 8rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.plsim-nav-out {
  color: var(--danger) !important;
}

.plsim-nav-cta {
  color: var(--text) !important;
  font-weight: 600;
}

.plsim-main {
  flex: 1;
  padding: 2rem 1rem 3rem;
}

.plsim-main--home {
  padding: 0;
  width: 100%;
  max-width: none;
}

.plsim-footer {
  border-top: 1px solid var(--border);
  padding: 1.25rem;
  margin-top: auto;
  background: var(--bg-1);
}

.plsim-footer-inner p {
  margin: 0;
  font-size: 0.8rem;
  color: var(--muted);
  text-align: center;
}

/* 首页 · Mapbox 英雄区（固定高度带，保证底图容器有非零尺寸） */
.plsim-home-hero {
  position: relative;
  overflow: hidden;
  /* 明确高度：Mapbox 初始化依赖容器 clientHeight */
  height: clamp(380px, 72vh, 720px);
  min-height: clamp(380px, 72vh, 720px);
}

.plsim-home-map {
  position: absolute;
  left: 0;
  right: 0;
  top: 0;
  bottom: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
}

.plsim-home-map .mapboxgl-map,
.plsim-home-map .mapboxgl-canvas-container,
.plsim-home-map .mapboxgl-canvas {
  width: 100% !important;
  height: 100% !important;
}

.plsim-home-hero--fallback .plsim-home-map {
  background: linear-gradient(145deg, #e0e7ff 0%, #dbeafe 35%, #f0f9ff 70%, #f8fafc 100%);
}

/* 轻遮罩：衬托地图上的标题（不拦截地图拖拽，除文案区域外） */
.plsim-home-hero-overlay {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.5) 0%,
    rgba(255, 255, 255, 0.15) 42%,
    rgba(255, 255, 255, 0.35) 100%
  );
}

/* 叠在地图上的主文案（居中） */
.plsim-home-hero-copy {
  position: absolute;
  inset: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: clamp(1.25rem, 4vw, 2.5rem) 1.25rem;
  box-sizing: border-box;
  pointer-events: none;
}

.plsim-home-hero-copy .plsim-hero--onmap {
  pointer-events: auto;
  width: min(40rem, 100%);
  margin: 0;
  padding: clamp(1.35rem, 3.5vw, 2rem) clamp(1.35rem, 3vw, 2.25rem);
  text-align: center;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.92);
  border: 1px solid rgba(255, 255, 255, 0.98);
  box-shadow: 0 20px 50px rgba(15, 23, 42, 0.12), 0 0 0 1px rgba(15, 23, 42, 0.04);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
}

.plsim-hero--onmap h1 {
  color: var(--text);
  text-shadow: 0 1px 0 rgba(255, 255, 255, 0.9);
}

.plsim-hero--onmap p {
  margin: 0.65rem auto 0;
  max-width: 38ch;
  color: var(--muted);
  font-size: clamp(0.95rem, 2.2vw, 1.05rem);
  line-height: 1.55;
}

.plsim-home-hero-actions {
  margin-top: 1.5rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

.plsim-home-below {
  padding: 2.5rem 1rem 3rem;
}

/* Typography */
.plsim-hero {
  padding: 0;
}

.plsim-hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.85rem, 4vw, 2.5rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  color: var(--text);
}

.plsim-hero p {
  margin: 0;
  max-width: 52ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.plsim-h2 {
  margin: 0 0 1rem;
  font-size: 1.35rem;
  letter-spacing: -0.02em;
  color: var(--text);
}

/* Cards & grid */
.plsim-grid {
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 720px) {
  .plsim-grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
  .plsim-grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

.plsim-card {
  background: #ffffff;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.35rem 1.5rem;
  box-shadow: var(--shadow);
}

.plsim-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--text);
}

.plsim-card p {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.plsim-card-meta {
  margin-top: 1rem;
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.78rem;
  color: var(--accent);
  opacity: 0.95;
}

/* Buttons */
.plsim-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  padding: 0.65rem 1.2rem;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 600;
  font-size: 0.92rem;
  cursor: pointer;
  text-decoration: none;
  transition: transform 0.12s, box-shadow 0.12s, background 0.12s;
  font-family: inherit;
}

.plsim-btn:active {
  transform: scale(0.98);
}

.plsim-btn-primary {
  background: linear-gradient(145deg, #3b82f6, #2563eb);
  color: #ffffff;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.28);
}

.plsim-btn-primary:hover {
  box-shadow: 0 12px 32px rgba(37, 99, 235, 0.35);
}

.plsim-btn-secondary {
  background: #eff6ff;
  color: #1e40af;
  border-color: rgba(37, 99, 235, 0.22);
}

.plsim-btn-secondary:hover {
  background: #dbeafe;
}

.plsim-btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: var(--border);
}

.plsim-btn-ghost:hover {
  background: var(--bg-2);
}

.plsim-btn-danger {
  background: #fef2f2;
  color: #b91c1c;
  border-color: rgba(220, 38, 38, 0.25);
}

.plsim-btn-sm {
  padding: 0.45rem 0.85rem;
  font-size: 0.85rem;
}

/* Forms */
.plsim-form {
  max-width: 420px;
}

.plsim-form label {
  display: block;
  margin-bottom: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.plsim-field {
  width: 100%;
  padding: 0.7rem 0.95rem;
  margin-bottom: 1rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #ffffff;
  color: var(--text);
  font-size: 1rem;
  font-family: inherit;
}

.plsim-field:focus {
  outline: none;
  border-color: rgba(37, 99, 235, 0.45);
  box-shadow: 0 0 0 3px var(--accent-dim);
}

.plsim-form textarea.plsim-field {
  min-height: 120px;
  resize: vertical;
}

.plsim-alert {
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.plsim-alert-error {
  background: #fef2f2;
  border: 1px solid rgba(220, 38, 38, 0.25);
  color: #991b1b;
}

.plsim-alert-success {
  background: #ecfdf5;
  border: 1px solid rgba(5, 150, 105, 0.28);
  color: #065f46;
}

/* Badges */
.plsim-badge {
  display: inline-block;
  padding: 0.2rem 0.55rem;
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.plsim-badge-ok {
  background: #d1fae5;
  color: var(--ok);
}

.plsim-badge-draft {
  background: #f1f5f9;
  color: var(--muted);
}

.plsim-badge-pub {
  background: #dbeafe;
  color: var(--blue);
}

.plsim-badge-role-admin {
  background: #fef3c7;
  color: #b45309;
}

.plsim-badge-role-mod {
  background: #dbeafe;
  color: var(--blue);
}

.plsim-badge-banned {
  background: #fee2e2;
  color: var(--danger);
}

/* Table */
.plsim-table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: #ffffff;
}

.plsim-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}

.plsim-table th,
.plsim-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
}

.plsim-table th {
  color: var(--muted);
  font-weight: 600;
  background: var(--bg-2);
}

.plsim-table tr:last-child td {
  border-bottom: none;
}

/* Map placeholder */
.plsim-map-shell {
  height: min(70vh, 560px);
  border-radius: var(--radius);
  border: 1px solid var(--border);
  overflow: hidden;
  position: relative;
  background: var(--bg-2);
}

.plsim-map-shell .plsim-map-fallback {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  height: 100%;
  padding: 2rem;
  text-align: center;
  color: var(--muted);
}

.plsim-metar-pre {
  font-family: "JetBrains Mono", ui-monospace, monospace;
  font-size: 0.82rem;
  white-space: pre-wrap;
  word-break: break-word;
  margin: 0;
  padding: 1rem;
  background: var(--bg-2);
  border-radius: 12px;
  border: 1px solid var(--border);
  color: #334155;
}

/* Admin layout */
.plsim-admin-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1.25rem;
}

.plsim-admin-bar a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--border);
}

.plsim-admin-bar a:hover,
.plsim-admin-bar a.is-active {
  color: var(--accent);
  border-color: rgba(37, 99, 235, 0.25);
  background: var(--accent-dim);
}

.plsim-muted {
  color: var(--muted);
  font-size: 0.9rem;
}

a.muted-link {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
}

a.muted-link:hover {
  color: var(--accent);
}

.plsim-split {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}