/* =========================================================
   CharCount Pro — Styles
   Design goals: editor first, ads balanced, no scroll-before-use
   ========================================================= */

:root {
  --blue: #2563eb;
  --blue-light: #dbeafe;
  --blue-mid: #60a5fa;
  --green: #16a34a;
  --amber: #d97706;
  --red: #dc2626;
  --surface: #ffffff;
  --surface-dim: #f8fafc;
  --border: #e5e7eb;
  --text-primary: #111827;
  --text-secondary: #4b5563;
  --text-muted: #6b7280;
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color-scheme: light;
}

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

html, body {
  margin: 0;
  min-height: 100%;
  line-height: 1.6;
  color: var(--text-primary);
  background: linear-gradient(160deg, #f0f6ff 0%, #f6f8fb 60%, #fffbf0 100%);
}

/* ── Page shell ─────────────────────────────────────────── */
.page-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 20px 20px 40px;
}

/* ── Site header (compact — tool visible on first load) ─── */
.site-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 18px 28px;
  margin-bottom: 20px;
  background: var(--surface);
  border-radius: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 4px 24px rgba(15, 23, 42, 0.06);
  flex-wrap: wrap;
}

.header-brand {
  flex: 0 0 auto;
}

.header-brand h1 {
  margin: 0;
  font-size: clamp(1.4rem, 2.5vw, 2rem);
  letter-spacing: -0.03em;
  line-height: 1.1;
}

.header-tagline {
  margin: 4px 0 0;
  color: var(--text-secondary);
  font-size: 0.92rem;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 6px;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--blue);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* Header ad (leaderboard 728×90) */
.header-ad {
  flex: 1 1 auto;
  max-width: 740px;
  min-width: 250px;
  display: flex;
  flex-direction: column;
  align-items: stretch;
  gap: 4px;
  overflow: hidden;
}

.ad-label {
  font-size: 0.72rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  align-self: flex-start;
  margin-bottom: 2px;
}

.ad-card {
  border-radius: 14px;
  background: linear-gradient(160deg, #eef2ff 0%, var(--surface) 100%);
  border: 1px dashed #c7d2fe;
  display: grid;
  place-items: center;
  color: #334155;
  text-align: center;
  padding: 12px 18px;
  font-size: 0.9rem;
}

.ad-leaderboard {
  display: block;
  width: 100%;
  min-width: 250px;
  min-height: 100px;
}

.ad-sidebar {
  display: block;
  width: 100%;
  min-height: 250px;
  max-height: 600px;
}

.ad-horizontal {
  display: block;
  width: 100%;
  min-height: 100px;
}

.ad-tag {
  display: inline-block;
  margin-top: 6px;
  font-size: 0.8rem;
  color: var(--blue);
  font-weight: 700;
}

/* ── Main editor layout ──────────────────────────────────── */
.editor-section {
  display: grid;
  gap: 20px;
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, 420px);
  align-items: start;
}

/* ── Editor card ─────────────────────────────────────────── */
.editor-card {
  background: var(--surface);
  border-radius: 20px;
  padding: 20px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}

.toolbar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}

.toolbar-label {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text-primary);
}

.toolbar-actions {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* Buttons */
.button {
  border: none;
  border-radius: 999px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 9px 18px;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background-color 0.15s ease;
  line-height: 1;
}
.button:hover { transform: translateY(-1px); }
.button:active { transform: none; }

.button-primary {
  background: var(--blue);
  color: white;
  box-shadow: 0 8px 24px rgba(37, 99, 235, 0.18);
}
.button-secondary {
  background: var(--blue-light);
  color: #1d4ed8;
}
.button-tertiary {
  background: var(--surface);
  color: var(--text-primary);
  border: 1px solid var(--border);
}
.button-tertiary:hover { background: var(--surface-dim); }

/* Textarea */
textarea {
  width: 100%;
  min-height: 340px;
  padding: 18px;
  border-radius: 16px;
  border: 1.5px solid #cbd5e1;
  resize: vertical;
  font: 1rem/1.7 "Inter", sans-serif;
  color: var(--text-primary);
  background: var(--surface-dim);
  transition: border-color 0.2s, box-shadow 0.2s;
}
textarea:focus {
  outline: none;
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.12);
  background: var(--surface);
}

/* Goal row */
.goal-row {
  margin-top: 12px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.goal-controls {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
}

.goal-label {
  font-weight: 600;
  font-size: 0.88rem;
  color: var(--text-secondary);
  white-space: nowrap;
}

.goal-select,
.goal-input {
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 6px 12px;
  font-size: 0.88rem;
  color: var(--text-primary);
  background: var(--surface);
  cursor: pointer;
}
.goal-select { min-width: 190px; }
.goal-input  { width: 110px; display: none; }
.goal-input.visible { display: block; }
.goal-select:focus, .goal-input:focus {
  outline: none;
  border-color: var(--blue-mid);
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

/* Progress bar */
.goal-progress-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
}

.goal-progress-bar {
  flex: 1;
  height: 10px;
  border-radius: 999px;
  background: #e5e7eb;
  overflow: hidden;
}

.goal-progress-fill {
  height: 100%;
  width: 0%;
  border-radius: 999px;
  background: var(--green);
  transition: width 0.2s ease, background-color 0.3s ease;
}
.goal-progress-fill.warn  { background: var(--amber); }
.goal-progress-fill.over  { background: var(--red); }

.goal-counter {
  font-size: 0.88rem;
  font-weight: 700;
  color: var(--text-secondary);
  white-space: nowrap;
  min-width: 80px;
  text-align: right;
}
.goal-counter.over { color: var(--red); }

/* Status row */
.status-row {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 10px;
  color: var(--text-muted);
  font-size: 0.88rem;
}

/* ── Metrics sidebar (sticky) ────────────────────────────── */
.metrics-panel {
  display: grid;
  gap: 18px;
  position: sticky;
  top: 16px;
  max-height: calc(100vh - 32px);
  overflow-y: auto;
  /* subtle scroll without visible scrollbar on modern browsers */
  scrollbar-width: thin;
  scrollbar-color: var(--border) transparent;
}

.metrics-card,
.ad-panel {
  background: var(--surface);
  border-radius: 18px;
  padding: 18px 18px 20px;
  border: 1px solid var(--border);
  box-shadow: 0 2px 12px rgba(15, 23, 42, 0.04);
}

.metrics-card h2 {
  margin: 0 0 14px;
  font-size: 0.97rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}

.metrics-grid {
  display: grid;
  gap: 10px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric-item {
  background: var(--surface-dim);
  border-radius: 14px;
  padding: 14px 12px;
  display: flex;
  flex-direction: column;
  gap: 3px;
  border: 1px solid var(--border);
}

.metric-highlight {
  border-color: var(--blue-light);
  background: #f0f6ff;
}

.metric-item span {
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1;
  letter-spacing: -0.03em;
}

.metric-highlight span { color: var(--blue); }

.metric-item p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.8rem;
  font-weight: 500;
}

/* Keywords card */
.keywords-card h2 { margin-bottom: 12px; }

.keyword-list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 7px;
}

.keyword-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 9px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--surface-dim);
  font-size: 0.88rem;
}

.keyword-list li .kw-word {
  font-weight: 600;
  color: var(--text-primary);
}

.keyword-list li .kw-count {
  font-size: 0.8rem;
  color: var(--text-muted);
  background: var(--border);
  border-radius: 999px;
  padding: 2px 8px;
  font-weight: 600;
}

.keyword-empty {
  color: var(--text-muted);
  font-style: italic;
  font-size: 0.88rem;
  border: none !important;
  background: transparent !important;
  padding: 4px 0 !important;
}

/* Sidebar ad */
.ad-panel {
  text-align: left;
  padding: 12px;
  overflow: hidden;
}

/* ── Features section ────────────────────────────────────── */
.features-section {
  margin-top: 32px;
}

.features-section h2 {
  margin: 0 0 18px;
  font-size: 1.25rem;
  font-weight: 700;
}

.feature-grid {
  display: grid;
  gap: 14px;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
}

.feature-card {
  padding: 20px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
}

.feature-icon {
  font-size: 1.5rem;
  margin-bottom: 10px;
}

.feature-card h3 {
  margin: 0 0 6px;
  font-size: 0.97rem;
}

.feature-card p {
  margin: 0;
  color: var(--text-secondary);
  font-size: 0.88rem;
  line-height: 1.55;
}

/* ── Bottom banner ad ────────────────────────────────────── */
.ad-banner-wrap {
  margin-top: 28px;
}

/* ── Footer ──────────────────────────────────────────────── */
.footer {
  margin-top: 20px;
  padding: 18px 22px;
  border-radius: 18px;
  background: var(--surface);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.88rem;
}

.footer p { margin: 0 0 4px; }
.footer p:last-child { margin-bottom: 0; }

/* =========================================================
   Responsive
   ========================================================= */

/* Tablet (≤ 960px) — stack to single column */
@media (max-width: 960px) {
  .editor-section {
    grid-template-columns: 1fr;
  }

  .metrics-panel {
    position: static;
    max-height: none;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    overflow: visible;
  }
}

/* Header adapts on narrow screens */
@media (max-width: 860px) {
  .site-header {
    flex-direction: column;
    align-items: flex-start;
  }
  .header-ad {
    width: 100%;
    align-items: stretch;
  }
}

/* Phone (≤ 600px) */
@media (max-width: 600px) {
  .page-shell {
    padding: 14px 12px 28px;
  }

  .site-header {
    padding: 14px 16px;
  }

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

  .toolbar-actions {
    width: 100%;
    justify-content: flex-start;
  }

  .button {
    padding: 10px 14px;
  }

  .goal-controls {
    flex-wrap: wrap;
  }

  .goal-select { min-width: 0; flex: 1 1 140px; }

  .metrics-panel {
    grid-template-columns: 1fr;
  }
}