/* SMS Segment & Encoding Calculator - Content Area Styles */
:root {
  --sms-bg: #ffffff;
  --sms-surface: #f0fdf4;
  --sms-card: #ffffff;
  --sms-border: #bbf7d0;
  --sms-line: #86efac;
  --sms-ink: #052e16;
  --sms-ink-soft: #166534;
  --sms-ink-faint: #4ade80;
  --sms-primary: var(--tf-accent, #15803d);
  --sms-primary-hover: #166534;
  --sms-warn: #b45309;
  --sms-warn-bg: #fef3c7;
  --sms-warn-border: #fde68a;
  --sms-radius: 2px;
}

.sms-main {
  width: 100%;
  color: var(--sms-ink);
}

.sms-wrap {
  max-width: 980px;
  margin: 0 auto;
  padding: 0 16px;
}

/* Controls bar */
.sms-controls-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  justify-content: space-between;
  margin-bottom: 24px;
  padding: 16px;
  background: var(--sms-surface);
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
}

.sms-control-group {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sms-control-label {
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--sms-ink-soft);
}

/* Panels */
.sms-panel {
  background: var(--sms-card);
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
  padding: 24px;
  margin-bottom: 24px;
}

.sms-form-panel,
.sms-results-panel {
  position: relative;
}

.sms-panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 12px;
}

.sms-panel-title {
  font-size: 1.125rem;
  font-weight: 700;
  margin: 0;
  color: var(--sms-ink);
}

.sms-encoding-badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 700;
  border-radius: var(--sms-radius);
  background: var(--sms-surface);
  color: var(--sms-primary);
  border: 1px solid var(--sms-line);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.sms-encoding-badge.is-ucs2 {
  background: var(--sms-warn-bg);
  color: var(--sms-warn);
  border-color: var(--sms-warn-border);
}

.sms-textarea {
  width: 100%;
  padding: 12px;
  font-size: 0.9375rem;
  line-height: 1.5;
  color: var(--sms-ink);
  background: var(--sms-card);
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
  font-family: inherit;
  box-sizing: border-box;
  resize: vertical;
}

.sms-textarea:focus {
  outline: 2px solid var(--sms-primary);
  border-color: var(--sms-primary);
}

.sms-char-bar {
  display: flex;
  justify-content: space-between;
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--sms-ink-soft);
  margin-top: 6px;
}

.sms-stat-grid {
  margin-top: 16px;
}

.sms-ad {
  overflow: hidden;
  min-height: 280px;
}

/* Grids */
.sms-grid {
  display: grid;
  gap: 16px;
}

.sms-grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
}

.sms-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.sms-label {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--sms-ink);
}

.sms-hint {
  font-size: 0.75rem;
  color: var(--sms-ink-soft);
}

.sms-input-wrap {
  display: flex;
  align-items: center;
  position: relative;
}

.sms-input,
.sms-select {
  width: 100%;
  padding: 8px 12px;
  font-size: 0.875rem;
  color: var(--sms-ink);
  background: var(--sms-card);
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
  font-family: inherit;
  box-sizing: border-box;
}

.sms-input:focus,
.sms-select:focus {
  outline: 2px solid var(--sms-primary);
  border-color: var(--sms-primary);
}

.sms-unit {
  position: absolute;
  right: 12px;
  font-size: 0.8125rem;
  color: var(--sms-ink-soft);
  pointer-events: none;
}

.sms-curr-prefix {
  position: absolute;
  left: 10px;
  font-size: 0.875rem;
  font-weight: 600;
  color: var(--sms-ink-soft);
  pointer-events: none;
}

.sms-curr-prefix + .sms-input {
  padding-left: 22px;
}

/* Buttons */
.sms-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 22px;
  font-size: 0.875rem;
  font-weight: 600;
  border-radius: var(--sms-radius);
  cursor: pointer;
  border: 1px solid transparent;
  transition: background-color 0.15s ease;
  background: var(--sms-primary);
  color: #ffffff;
}

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

.sms-btn-sm {
  padding: 6px 14px;
  font-size: 0.8125rem;
}

/* Hero Summary */
.sms-summary-hero {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 16px;
  margin-bottom: 24px;
}

.sms-hero-card {
  padding: 20px;
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
  background: var(--sms-surface);
}

.sms-hero-label {
  display: block;
  font-size: 0.8125rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  color: var(--sms-ink-soft);
  margin-bottom: 6px;
}

.sms-hero-value {
  font-size: 2rem;
  font-weight: 800;
  line-height: 1.1;
  letter-spacing: -0.02em;
  color: var(--sms-primary);
  margin-bottom: 6px;
  font-variant-numeric: tabular-nums;
}

.sms-hero-sub {
  font-size: 0.8125rem;
  color: var(--sms-ink-soft);
}

/* Stat Box */
.sms-stat-box {
  padding: 14px;
  background: var(--sms-card);
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
}

.sms-stat-label {
  display: block;
  font-size: 0.75rem;
  font-weight: 600;
  color: var(--sms-ink-soft);
  margin-bottom: 4px;
}

.sms-stat-num {
  display: block;
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--sms-ink);
  font-variant-numeric: tabular-nums;
}

.sms-stat-sub {
  display: block;
  font-size: 0.75rem;
  color: var(--sms-ink-soft);
  margin-top: 2px;
}

/* Callout */
.sms-callout {
  margin-top: 20px;
  padding: 16px;
  background: var(--sms-surface);
  border-left: 3px solid var(--sms-primary);
  border-radius: 0 var(--sms-radius) var(--sms-radius) 0;
}

.sms-callout.is-warn {
  background: var(--sms-warn-bg);
  border-left-color: var(--sms-warn);
}

.sms-callout-title {
  font-size: 0.875rem;
  font-weight: 700;
  margin: 0 0 4px 0;
  color: var(--sms-ink);
}

.sms-callout-text {
  font-size: 0.8125rem;
  line-height: 1.5;
  margin: 0;
  color: var(--sms-ink-soft);
}

/* Inspect Box */
.sms-inspect-box {
  margin-top: 20px;
  padding: 16px;
  background: var(--sms-surface);
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
}

.sms-inspect-title {
  font-size: 0.875rem;
  font-weight: 700;
  margin: 0 0 8px 0;
  color: var(--sms-ink);
}

.sms-inspect-list {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.sms-char-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 8px;
  background: var(--sms-card);
  border: 1px solid var(--sms-line);
  border-radius: var(--sms-radius);
  font-size: 0.75rem;
  font-family: var(--tf-font-mono, monospace);
}

.sms-char-badge {
  font-weight: 700;
  font-size: 0.875rem;
  color: var(--sms-warn);
}

@media (max-width: 640px) {
  .sms-controls-bar {
    flex-direction: column;
    align-items: stretch;
  }
  .sms-control-group {
    justify-content: space-between;
  }
}

.sms-pricing-section {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--sms-line);
}

.sms-pricing-header {
  margin-bottom: 14px;
}

.sms-pricing-title {
  display: block;
  font-size: 1rem;
  font-weight: 700;
  color: var(--sms-ink);
  margin-bottom: 4px;
}

.sms-rate-presets-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 8px;
  margin-top: 12px;
}

.sms-btn-xs {
  padding: 4px 10px;
  font-size: 0.75rem;
  font-weight: 600;
  border-radius: var(--sms-radius);
  background: var(--sms-surface);
  color: var(--sms-ink);
  border: 1px solid var(--sms-line);
  cursor: pointer;
  transition: all 0.15s ease;
}

.sms-btn-xs:hover {
  background: var(--sms-primary);
  color: #ffffff;
  border-color: var(--sms-primary);
}

/* tf:dark-palette — generated by migrate_chrome.py */
/* Neutrals inherit the shared chrome tokens so all tools share one
   ground; brand hues are kept and lightened, never inverted. */
[data-theme="dark"] {
  --sms-bg: var(--tf-surface);
  --sms-surface: var(--tf-surface);
  --sms-card: var(--tf-surface);
  --sms-border: #81daa0;
  --sms-line: #81daa1;
  --sms-ink: #59cf8a;
  --sms-ink-soft: #59cf86;
  --sms-ink-faint: #81daa1;
  --sms-primary-hover: #59cf86;
  --sms-warn: #d9a57d;
  --sms-warn-bg: var(--tf-surface);
  --sms-warn-border: #dac881;
}