:root {
  --primary: 142 76% 36%;
  --primary-foreground: 0 0% 100%;
  --background: 220 40% 96%;
  --foreground: 222 40% 14%;
  --card: 0 0% 100%;
  --border: 220 25% 86%;
  --muted: 220 25% 92%;
  --muted-foreground: 220 18% 42%;
  --shadow: 220 30% 30%;
}

html[data-theme="dark"] {
  --primary: 142 76% 36%;
  --primary-foreground: 0 0% 100%;
  --background: 222 47% 8%;
  --foreground: 210 40% 98%;
  --card: 217 33% 12%;
  --border: 217 33% 17%;
  --muted: 217 33% 17%;
  --muted-foreground: 215 20% 65%;
  --shadow: 0 0% 0%;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: Inter, system-ui, sans-serif;
  background: hsl(var(--background));
  color: hsl(var(--foreground));
}

a { color: inherit; text-decoration: none; }
button, input, textarea, select { font: inherit; }

.site-shell { min-height: 100vh; }
.app-shell { display: flex; flex-direction: column; }

.app-header {
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 24px;
  border-bottom: 1px solid hsl(var(--border));
  background: hsl(var(--card) / 0.5);
  backdrop-filter: blur(10px);
  flex-shrink: 0;
}

.app-brand-wrap,
.app-header-actions,
.theme-switcher,
.hero-actions,
.footer-links,
.inline-actions,
.toolbar,
.panel-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}

.app-brand {
  font-size: 31px;
  font-weight: 800;
  letter-spacing: -0.04em;
  color: hsl(var(--primary));
}

.app-subtitle,
.muted,
.small,
.footer-note,
.admin-topbar p {
  color: hsl(var(--muted-foreground));
}

.theme-btn,
.btn,
.admin-nav-link,
.logout-link,
.mini-link {
  border-radius: 12px;
  border: 1px solid hsl(var(--border));
  padding: 10px 14px;
  background: transparent;
  color: hsl(var(--muted-foreground));
  cursor: pointer;
}

.theme-btn.is-active,
.btn-primary,
.admin-nav-link.is-active {
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  border-color: transparent;
}

.btn-secondary,
.mini-link {
  background: hsl(var(--muted) / 0.35);
  color: hsl(var(--foreground));
}

.header-cta { padding-inline: 18px; }

.site-main {
  flex: 1;
  padding: 24px;
  background: hsl(var(--card) / 0.3);
}

.app-workspace {
  display: grid;
  gap: 18px;
  max-width: 1500px;
  margin: 0 auto;
}

.tool-page-wrap {
  max-width: 1500px;
  margin: 0 auto;
}

.tool-frame-shell {
  min-height: calc(100vh - 56px - 40px - 48px);
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card) / 0.5);
  overflow: hidden;
}

.tool-frame {
  width: 100%;
  height: calc(100vh - 56px - 40px - 50px);
  border: 0;
  display: block;
  background: hsl(var(--background));
}

.app-canvas {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 260px;
  gap: 0;
  min-height: calc(100vh - 56px - 40px - 48px);
  border: 1px solid hsl(var(--border));
  background: hsl(var(--card) / 0.5);
  overflow: hidden;
}

.app-controls {
  border-left: 1px solid hsl(var(--border));
  background: hsl(var(--card) / 0.55);
  padding: 16px 12px;
  overflow-y: auto;
}

.panel-block {
  margin-bottom: 14px;
  padding: 12px;
  border-radius: 14px;
  background: hsl(var(--muted) / 0.24);
  border: 1px solid hsl(var(--border));
}

.panel-label {
  margin-bottom: 10px;
  font-size: 12px;
  font-weight: 700;
  text-transform: uppercase;
  color: hsl(var(--muted-foreground));
}

.panel-list {
  display: grid;
  gap: 8px;
}

.panel-item {
  font-size: 13px;
  line-height: 1.45;
}

.panel-stats {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
}

.panel-stats strong {
  display: block;
  font-size: 20px;
  color: hsl(var(--primary));
}

.panel-stats span {
  display: block;
  font-size: 11px;
  color: hsl(var(--muted-foreground));
}

.canvas-stage {
  min-width: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.canvas-display {
  width: min(100%, 980px);
  min-height: 540px;
  border: 1px solid hsl(var(--border));
  border-radius: 22px;
  padding: 28px;
  background:
    radial-gradient(circle at top, rgba(255,255,255,0.08), transparent 55%),
    hsl(var(--card));
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
}

.canvas-badge {
  display: inline-flex;
  padding: 10px 18px;
  border-radius: 14px;
  background: hsl(var(--primary));
  color: hsl(var(--primary-foreground));
  font-weight: 600;
}

.canvas-title {
  margin: 18px 0 12px;
  font-size: clamp(46px, 6vw, 72px);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.canvas-copy {
  max-width: 720px;
  margin: 0 0 20px;
  font-size: 17px;
  line-height: 1.55;
  color: hsl(var(--muted-foreground));
}

.content-strip {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}

.content-tile,
.page-card,
.content-card,
.admin-card,
.stat-card,
.login-card,
.app-footer-inner {
  border: 1px solid hsl(var(--border));
  border-radius: 20px;
  background: hsl(var(--card) / 0.72);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
}

.content-tile {
  padding: 20px;
}

.tile-slug { margin-bottom: 16px; }
.content-tile h3 { margin: 0 0 14px; font-size: 18px; }
.tile-btn { margin-top: 12px; }

.app-footer {
  height: 40px;
  border-top: 1px solid hsl(var(--border));
  background: hsl(var(--card) / 0.3);
  color: hsl(var(--muted-foreground));
  flex-shrink: 0;
}

.app-footer-inner {
  max-width: 1500px;
  height: 100%;
  margin: 0 auto;
  padding: 0 18px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 18px;
  flex-wrap: wrap;
  font-size: 12px;
}

.footer-links a { color: hsl(var(--primary)); }

.ad-slot {
  margin-top: 20px;
  border: 1px dashed hsl(var(--border));
  padding: 14px;
  border-radius: 16px;
  background: hsl(var(--muted) / 0.3);
}

.page-content { line-height: 1.75; }

.admin-shell {
  display: grid;
  grid-template-columns: 220px 1fr;
  min-height: 100vh;
}

.admin-sidebar {
  background: #0f1323;
  color: #eef3ff;
  padding: 24px 18px;
  border-right: 1px solid #1e2641;
}

.admin-nav { display: grid; gap: 10px; margin: 28px 0; }
.logout-link { display: inline-block; }
.admin-content { padding: 26px; }
.stats-grid,
.form-grid,
.two-col { display: grid; gap: 16px; }
.stats-grid { grid-template-columns: repeat(auto-fit, minmax(150px, 1fr)); }
.form-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.two-col { grid-template-columns: 1.4fr 1fr; }
.field,
.stack { display: grid; gap: 8px; }
.stack { margin-bottom: 16px; }
.input,
.textarea,
.select {
  width: 100%;
  border-radius: 14px;
  border: 1px solid hsl(var(--border));
  background: hsl(var(--muted) / 0.5);
  color: hsl(var(--foreground));
  padding: 12px 14px;
}
.textarea { min-height: 140px; resize: vertical; }
.textarea.editor { min-height: 280px; }
.flash {
  margin-bottom: 18px;
  padding: 14px 16px;
  border-radius: 14px;
  border: 1px solid hsl(var(--border));
}
.flash-success { background: rgba(35,197,94,.12); }
.flash-error { background: rgba(240,79,95,.12); }
.table-wrap { overflow: auto; border-radius: 18px; border: 1px solid hsl(var(--border)); }
table { width: 100%; border-collapse: collapse; min-width: 820px; }
th, td { padding: 14px 12px; border-bottom: 1px solid hsl(var(--border)); text-align: left; vertical-align: top; }
thead th { background: hsl(var(--muted) / 0.55); color: hsl(var(--muted-foreground)); }
.login-shell { min-height: 100vh; display: grid; place-items: center; padding: 24px; }
.login-card { width: min(460px, 100%); padding: 28px; }
pre.small { white-space: pre-wrap; margin: 0; }

@media (max-width: 1100px) {
  .app-canvas,
  .admin-shell,
  .two-col,
  .form-grid {
    grid-template-columns: 1fr;
  }

  .app-controls {
    border-left: 0;
    border-top: 1px solid hsl(var(--border));
  }

  .canvas-display {
    min-height: 420px;
  }

  .tool-frame-shell {
    min-height: calc(100vh - 56px - 40px - 40px);
  }

  .tool-frame {
    height: calc(100vh - 56px - 40px - 42px);
  }
}

@media (max-width: 760px) {
  .app-header {
    height: auto;
    padding: 14px 16px;
    flex-direction: column;
    align-items: flex-start;
  }

  .app-header-actions {
    width: 100%;
    justify-content: space-between;
    flex-wrap: wrap;
  }

  .site-main { padding: 16px; }
  .canvas-stage { padding: 16px; }
  .canvas-display { padding: 22px; min-height: 360px; }
  .canvas-title { font-size: clamp(38px, 12vw, 58px); }
  .app-footer { height: auto; }
  .app-footer-inner { padding: 10px 14px; justify-content: flex-start; }
  .tool-frame-shell {
    min-height: calc(100vh - 120px);
  }
  .tool-frame {
    height: calc(100vh - 124px);
  }
}