:root {
  color-scheme: light;
  --bg: #f7f4ef;
  --panel: #ffffff;
  --panel-soft: #f0ebe3;
  --text: #1f2328;
  --muted: #667085;
  --border: #ddd6ca;
  --accent: #0f766e;
  --accent-strong: #115e59;
  --accent-soft: #dff5f0;
  --shadow: 0 20px 45px rgba(36, 31, 24, 0.08);
}

.dark {
  color-scheme: dark;
  --bg: #111312;
  --panel: #1b1f1e;
  --panel-soft: #242927;
  --text: #f2f0eb;
  --muted: #a7b0ac;
  --border: #363d3a;
  --accent: #5eead4;
  --accent-strong: #99f6e4;
  --accent-soft: #123b36;
  --shadow: 0 20px 45px rgba(0, 0, 0, 0.25);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(180deg, rgba(15, 118, 110, 0.08), transparent 18rem),
    var(--bg);
  color: var(--text);
  font-family: "Aptos", "Segoe UI", sans-serif;
}

button,
input,
textarea {
  font: inherit;
}

a {
  color: inherit;
}

.site-header {
  align-items: center;
  display: flex;
  gap: 1rem;
  justify-content: space-between;
  margin: 0 auto;
  max-width: 1440px;
  padding: 1rem clamp(1rem, 3vw, 2rem);
}

.brand {
  align-items: center;
  display: inline-flex;
  font-weight: 750;
  gap: 0.6rem;
  text-decoration: none;
}

.brand-mark {
  align-items: center;
  background: var(--text);
  border-radius: 0.45rem;
  color: var(--bg);
  display: inline-flex;
  height: 2rem;
  justify-content: center;
  width: 2rem;
}

.top-nav {
  align-items: center;
  display: flex;
  gap: 0.75rem;
}

.top-nav a {
  color: var(--muted);
  font-size: 0.95rem;
  text-decoration: none;
}

.site-footer {
  color: var(--muted);
  font-size: 0.85rem;
  margin: 0 auto;
  max-width: 1440px;
  padding: 0 2rem 1.5rem;
  text-align: center;
}

.workspace {
  display: grid;
  gap: 1rem;
  grid-template-columns: 18rem minmax(0, 1fr) 20rem;
  margin: 0 auto;
  max-width: 1440px;
  padding: 0 clamp(1rem, 3vw, 2rem) 2rem;
}

.tool-panel,
.editor-panel,
.options-panel,
.plain-content {
  background: color-mix(in srgb, var(--panel) 96%, transparent);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow);
}

.tool-panel,
.options-panel {
  align-self: start;
  padding: 1rem;
}

.editor-panel {
  min-width: 0;
  padding: 1rem;
}

.panel-heading {
  margin-bottom: 1rem;
}

.panel-heading h1,
.panel-heading h2,
.editor-toolbar h2,
.plain-content h1 {
  margin: 0;
}

.panel-heading h1 {
  font-size: 1.55rem;
  line-height: 1.15;
}

.panel-heading.compact h2,
.feedback-card h2 {
  font-size: 1rem;
}

.eyebrow {
  color: var(--accent-strong);
  font-size: 0.75rem;
  font-weight: 750;
  letter-spacing: 0;
  margin: 0 0 0.35rem;
  text-transform: uppercase;
}

.tool-list {
  display: grid;
  gap: 0.4rem;
}

.tool-button,
.ghost-button,
.secondary-button,
.primary-button,
.icon-button {
  border: 1px solid var(--border);
  border-radius: 0.5rem;
  cursor: pointer;
  min-height: 2.4rem;
  padding: 0.55rem 0.8rem;
}

.tool-button {
  background: transparent;
  color: var(--text);
  display: block;
  text-decoration: none;
  text-align: left;
}

.tool-button.active {
  background: var(--accent-soft);
  border-color: var(--accent);
  color: var(--accent-strong);
  font-weight: 700;
}

.icon-button,
.ghost-button,
.secondary-button {
  background: var(--panel);
  color: var(--text);
}

.primary-button {
  background: var(--accent);
  border-color: var(--accent);
  color: #ffffff;
  font-weight: 750;
}

.dark .primary-button {
  color: #10201d;
}

.privacy-note {
  color: var(--muted);
  font-size: 0.85rem;
  line-height: 1.45;
  margin: 1rem 0 0;
}

.editor-toolbar,
.main-actions,
.stats-row {
  align-items: center;
  display: flex;
  gap: 0.75rem;
  justify-content: space-between;
}

.toolbar-actions,
.main-actions {
  flex-wrap: wrap;
}

.editor-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin-top: 1rem;
}

.text-box {
  display: grid;
  gap: 0.5rem;
  min-width: 0;
}

.text-box span {
  color: var(--muted);
  font-size: 0.85rem;
  font-weight: 700;
}

textarea,
input[type="email"],
input[type="text"] {
  background: var(--panel-soft);
  border: 1px solid var(--border);
  border-radius: 0.55rem;
  color: var(--text);
  outline: none;
  padding: 0.8rem;
  width: 100%;
}

textarea:focus,
input[type="email"]:focus,
input[type="text"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 18%, transparent);
}

.editor-grid textarea {
  min-height: min(52vh, 34rem);
  resize: vertical;
}

.stats-row {
  color: var(--muted);
  font-size: 0.85rem;
  justify-content: flex-start;
  margin: 0.8rem 0 1rem;
}

.options-group {
  display: grid;
  gap: 0.75rem;
}

.options-group label {
  align-items: center;
  color: var(--text);
  display: flex;
  gap: 0.55rem;
}

.stacked-option {
  align-items: stretch !important;
  display: grid !important;
  gap: 0.35rem !important;
}

.feedback-card {
  border-top: 1px solid var(--border);
  display: grid;
  gap: 0.75rem;
  margin-top: 1.25rem;
  padding-top: 1rem;
}

.char-counter {
  color: var(--muted);
  font-size: 0.78rem;
  text-align: right;
}

.hidden {
  display: none !important;
}

.toast {
  background: var(--text);
  border-radius: 999px;
  bottom: 1.25rem;
  color: var(--bg);
  left: 50%;
  opacity: 0;
  padding: 0.65rem 1rem;
  pointer-events: none;
  position: fixed;
  transform: translate(-50%, 0.5rem);
  transition: opacity 160ms ease, transform 160ms ease;
}

.toast.visible {
  opacity: 1;
  transform: translate(-50%, 0);
}

.plain-page {
  padding: 4rem 1rem;
}

.admin-page {
  margin: 0 auto;
  max-width: 1440px;
  padding: 0 clamp(1rem, 3vw, 2rem) 2rem;
}

.admin-header,
.admin-section {
  background: color-mix(in srgb, var(--panel) 96%, transparent);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  box-shadow: var(--shadow);
  margin-bottom: 1rem;
  padding: 1rem;
}

.admin-header h1,
.admin-section h2 {
  margin: 0;
}

.admin-section h2 {
  font-size: 1.1rem;
  margin-bottom: 0.75rem;
}

.admin-table-wrap {
  overflow-x: auto;
}

.admin-table {
  border-collapse: collapse;
  font-size: 0.9rem;
  min-width: 48rem;
  width: 100%;
}

.admin-table th,
.admin-table td {
  border-top: 1px solid var(--border);
  padding: 0.65rem;
  text-align: left;
  vertical-align: top;
}

.admin-table th {
  color: var(--muted);
  font-size: 0.78rem;
  text-transform: uppercase;
}

.muted-text {
  color: var(--muted);
}

.seo-section {
  margin: 0 auto;
  max-width: 1440px;
  padding: 0 clamp(1rem, 3vw, 2rem) 2rem;
}

.seo-content {
  border-top: 1px solid var(--border);
  padding-top: 2rem;
}

.seo-content h2 {
  font-size: clamp(1.4rem, 2vw, 2rem);
  line-height: 1.2;
  margin: 0;
  max-width: 54rem;
}

.seo-content > p {
  color: var(--muted);
  line-height: 1.65;
  max-width: 58rem;
}

.seo-grid {
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 1.5rem;
}

.seo-card {
  background: color-mix(in srgb, var(--panel) 80%, transparent);
  border: 1px solid var(--border);
  border-radius: 0.65rem;
  color: inherit;
  display: block;
  padding: 1rem;
  text-decoration: none;
  transition: border-color 140ms ease, transform 140ms ease;
}

.seo-card:hover {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.seo-grid h3 {
  font-size: 1rem;
  margin: 0 0 0.45rem;
}

.seo-grid p {
  color: var(--muted);
  font-size: 0.92rem;
  line-height: 1.55;
  margin: 0;
}

.plain-content {
  line-height: 1.65;
  margin: 0 auto;
  max-width: 44rem;
  padding: clamp(1.5rem, 5vw, 3rem);
}

.plain-content p {
  color: var(--muted);
}

.inline-action {
  display: inline-flex;
  margin-top: 1rem;
  text-decoration: none;
}

@media (max-width: 1100px) {
  .workspace {
    grid-template-columns: 15rem minmax(0, 1fr);
  }

  .options-panel {
    grid-column: 1 / -1;
  }
}

@media (max-width: 760px) {
  .site-header {
    padding-inline: 1rem;
  }

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

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

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

  .editor-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .editor-grid textarea {
    min-height: 18rem;
  }
}