/* --- Reset & Base (scoped to .tt-shell for Webflow embedding) --- */
.tt-shell, .tt-shell *, .tt-shell *::before, .tt-shell *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

/* --- Tool Shell + Design Tokens (Light Mode Default) --- */
.tt-shell {
  /* ThumbMagic light mode palette */
  --tm-bg-primary: #ffffff;
  --tm-bg-secondary: #F7F7F7;
  --tm-bg-elevated: #ffffff;
  --tm-bg-hover: rgba(0, 0, 0, 0.04);
  --tm-text-primary: #000000;
  --tm-text-secondary: #5D5656;
  --tm-text-disabled: #aaaeb3;
  --tm-border: #e4e4e7;
  --tm-chip-bg: #F7F7F7;
  --tm-chip-bg-active: #000000;
  --tm-chip-text: #000000;
  --tm-chip-text-active: #ffffff;
  --tm-badge-bg: rgba(0, 0, 0, 0.8);
  --tm-badge-text: #ffffff;
  --tm-avatar-bg: #ececee;
  --tm-link-color: #FF0032;
  --tm-red: #FF0032;
  --tm-overlay-bg: rgba(0, 0, 0, 0.6);

  /* Tool-specific */
  --tool-accent: #FF0032;
  --tool-accent-hover: #cc0029;
  --tool-success: #1AB76A;
  --tool-warning: #f57c00;
  --tool-info: #ff0032;

  /* Scoring */
  --score-strong: #1AB76A;
  --score-decent: #ff0032;
  --score-moderate: #f9ab00;
  --score-weak: #d93025;

  /* Shell layout */
  max-width: 1120px;
  margin: 0 auto;
  padding: 24px 16px;

  /* Base typography */
  font-family: 'Open Sauce Two', 'Source Sans 3', Arial, sans-serif;
  background: var(--tm-bg-primary);
  color: var(--tm-text-primary);
  line-height: 1.4;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* --- Dark Mode (scoped) --- */
.tt-shell[data-theme="dark"] {
  --tm-bg-primary: #0f0f0f;
  --tm-bg-secondary: #1a1a1a;
  --tm-bg-elevated: #212121;
  --tm-bg-hover: rgba(255, 255, 255, 0.1);
  --tm-text-primary: #f1f1f1;
  --tm-text-secondary: #aaaaaa;
  --tm-text-disabled: #717171;
  --tm-border: #3f3f3f;
  --tm-chip-bg: #3f3f3f;
  --tm-chip-bg-active: #f1f1f1;
  --tm-chip-text: #f1f1f1;
  --tm-chip-text-active: #0f0f0f;
  --tm-badge-bg: rgba(0, 0, 0, 0.8);
  --tm-badge-text: #ffffff;
  --tm-link-color: #FF4D6A;
}

/* --- Header --- */
.tt-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 0 24px;
  border-bottom: 1px solid var(--tm-border);
  margin-bottom: 24px;
}

.tt-header__title {
  font-size: 20px;
  font-weight: 600;
  color: var(--tm-text-primary);
}

/* --- Buttons --- */
.tt-btn {
  padding: 10px 20px;
  min-height: 44px;
  font-size: 14px;
  font-weight: 600;
  font-family: 'Open Sauce Two', 'Source Sans 3', Arial, sans-serif;
  border: none;
  border-radius: 16px;
  cursor: pointer;
  transition: background 0.2s, opacity 0.2s;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  text-decoration: none;
}

.tt-btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.tt-btn--primary {
  background: var(--tm-red);
  color: #ffffff;
  box-shadow: rgba(255, 3, 50, 0.35) 0px 8px 12px -4px, rgba(121, 0, 0, 0.06) 0px 2px 0px 0px, rgba(255, 255, 255, 0.75) 0px 0px 10px 1px inset, rgba(0, 0, 0, 0.2) 0px 0px 0px 2px inset;
}

.tt-btn--primary:hover:not(:disabled) {
  background: var(--tool-accent-hover);
}

.tt-btn--secondary {
  background: var(--tm-chip-bg);
  color: var(--tm-chip-text);
}

.tt-btn--secondary:hover:not(:disabled) {
  background: var(--tm-bg-hover);
}

/* --- Cards --- */
.tt-pane-card {
  background: var(--tm-bg-elevated);
  border: 1px solid var(--tm-border);
  border-radius: 16px;
  padding: 18px;
}

.tt-pane-card__title {
  font-size: 15px;
  font-weight: 600;
  color: var(--tm-text-primary);
  margin-bottom: 4px;
}

.tt-pane-card__subtitle {
  font-size: 13px;
  color: var(--tm-text-secondary);
  margin-bottom: 14px;
}


/* ============================================================
   SECTION: Upload Zone
   ============================================================ */

.tt-upload-zone {
  border: 2px dashed var(--tm-border);
  border-radius: 16px;
  padding: 40px 20px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  background: var(--tm-bg-secondary);
  position: relative;
}

.tt-upload-zone:hover,
.tt-upload-zone--dragover {
  border-color: var(--tm-link-color);
  background: var(--tm-bg-hover);
}

.tt-upload-zone:focus-visible {
  outline: 2px solid var(--tm-link-color);
  outline-offset: 2px;
}

.tt-upload-zone__icon {
  font-size: 48px;
  line-height: 1;
  margin-bottom: 12px;
  color: var(--tm-text-disabled);
}

.tt-upload-zone__text {
  font-size: 16px;
  font-weight: 500;
  color: var(--tm-text-primary);
  margin-bottom: 6px;
}

.tt-upload-zone__hint {
  font-size: 13px;
  color: var(--tm-text-secondary);
}

.tt-upload-zone__input {
  position: absolute;
  width: 1px;
  height: 1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
}

.tt-upload-error {
  font-size: 13px;
  color: var(--score-weak);
  text-align: center;
  margin-top: 8px;
  min-height: 0;
}

.tt-upload-info {
  display: none;
  align-items: center;
  gap: 12px;
  padding: 10px 14px;
  border: 1px solid var(--tm-border);
  border-radius: 12px;
  background: var(--tm-bg-secondary);
  margin-top: 12px;
}

.tt-upload-info.visible {
  display: flex;
}

.tt-upload-info__thumb {
  width: 48px;
  height: 48px;
  border-radius: 6px;
  object-fit: cover;
  flex-shrink: 0;
}

.tt-upload-info__details {
  flex: 1;
  min-width: 0;
}

.tt-upload-info__name {
  font-size: 13px;
  font-weight: 500;
  color: var(--tm-text-primary);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.tt-upload-info__meta {
  font-size: 12px;
  color: var(--tm-text-secondary);
}

.tt-upload-info__remove {
  width: 32px;
  height: 32px;
  border: none;
  background: none;
  color: var(--tm-text-secondary);
  font-size: 18px;
  cursor: pointer;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: background 0.2s;
}

.tt-upload-info__remove:hover {
  background: var(--tm-bg-hover);
}

.tt-upload-info__remove:focus-visible {
  outline: 2px solid var(--tm-link-color);
  outline-offset: 2px;
}


/* ============================================================
   SECTION: Platform Selector
   ============================================================ */

.tt-resizer {
  display: grid;
  gap: 20px;
  margin-top: 20px;
}

.tt-platform-chips {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.tt-platform-chip {
  padding: 8px 16px;
  min-height: 36px;
  font-size: 13px;
  font-weight: 500;
  font-family: 'Open Sauce Two', 'Source Sans 3', Arial, sans-serif;
  border: 1px solid var(--tm-border);
  border-radius: 16px;
  cursor: pointer;
  background: var(--tm-chip-bg);
  color: var(--tm-chip-text);
  transition: background 0.2s, color 0.2s, border-color 0.2s;
}

.tt-platform-chip:hover {
  background: var(--tm-bg-hover);
}

.tt-platform-chip:focus-visible {
  outline: 2px solid var(--tm-link-color);
  outline-offset: 2px;
}

.tt-platform-chip--active {
  background: var(--tm-chip-bg-active);
  color: var(--tm-chip-text-active);
  border-color: var(--tm-chip-bg-active);
}

.tt-platform-chip--active:hover {
  background: var(--tm-chip-bg-active);
  opacity: 0.9;
}

.tt-size-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 10px;
}

.tt-size-card {
  padding: 12px 14px;
  border: 1px solid var(--tm-border);
  border-radius: 12px;
  cursor: pointer;
  background: var(--tm-bg-secondary);
  transition: border-color 0.2s, background 0.2s;
  min-height: 44px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.tt-size-card:hover {
  border-color: var(--tm-link-color);
}

.tt-size-card:focus-visible {
  outline: 2px solid var(--tm-link-color);
  outline-offset: 2px;
}

.tt-size-card--active {
  border-color: var(--tm-link-color);
  background: var(--tm-bg-elevated);
  box-shadow: 0 0 0 1px var(--tm-link-color);
}

.tt-size-card__name {
  font-size: 14px;
  font-weight: 500;
  color: var(--tm-text-primary);
}

.tt-size-card__dims {
  font-size: 12px;
  color: var(--tm-text-secondary);
  margin-top: 2px;
}

/* Custom size inputs */
.tt-custom-size {
  display: none;
  gap: 10px;
  align-items: flex-end;
  margin-top: 10px;
}

.tt-custom-size.visible {
  display: flex;
}

.tt-custom-size__group {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.tt-custom-size__group label {
  font-size: 12px;
  font-weight: 500;
  color: var(--tm-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tt-custom-size__input {
  padding: 10px 12px;
  font-size: 14px;
  font-family: 'Open Sauce Two', 'Source Sans 3', Arial, sans-serif;
  background: var(--tm-bg-primary);
  color: var(--tm-text-primary);
  border: 1px solid var(--tm-border);
  border-radius: 8px;
  outline: none;
  transition: border-color 0.2s;
  width: 110px;
}

.tt-custom-size__input:focus {
  border-color: var(--tm-link-color);
}

.tt-custom-size__x {
  font-size: 14px;
  color: var(--tm-text-secondary);
  padding-bottom: 12px;
}


/* ============================================================
   SECTION: Resize Controls + Preview + Download
   ============================================================ */

.tt-resize-controls {
  display: none;
  gap: 20px;
}

.tt-resize-controls.visible {
  display: grid;
}

.tt-mode-toggle {
  display: flex;
  gap: 0;
  border: 1px solid var(--tm-border);
  border-radius: 12px;
  overflow: hidden;
  width: fit-content;
}

.tt-mode-btn {
  padding: 10px 20px;
  min-height: 44px;
  font-size: 13px;
  font-weight: 500;
  font-family: 'Open Sauce Two', 'Source Sans 3', Arial, sans-serif;
  border: none;
  cursor: pointer;
  background: var(--tm-bg-secondary);
  color: var(--tm-text-secondary);
  transition: background 0.2s, color 0.2s;
}

.tt-mode-btn:focus-visible {
  outline: 2px solid var(--tm-link-color);
  outline-offset: -2px;
}

.tt-mode-btn--active {
  background: var(--tm-chip-bg-active);
  color: var(--tm-chip-text-active);
}

.tt-mode-desc {
  font-size: 12px;
  color: var(--tm-text-secondary);
  margin-top: 6px;
}

.tt-format-row {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.tt-format-row label {
  font-size: 12px;
  font-weight: 500;
  color: var(--tm-text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.tt-format-select {
  padding: 8px 12px;
  font-size: 14px;
  font-family: 'Open Sauce Two', 'Source Sans 3', Arial, sans-serif;
  background: var(--tm-bg-primary);
  color: var(--tm-text-primary);
  border: 1px solid var(--tm-border);
  border-radius: 8px;
  outline: none;
  min-height: 44px;
}

.tt-format-select:focus {
  border-color: var(--tm-link-color);
}

.tt-preview-area {
  display: none;
  flex-direction: column;
  align-items: center;
  gap: 14px;
}

.tt-preview-area.visible {
  display: flex;
}

.tt-preview-label {
  font-size: 13px;
  font-weight: 500;
  color: var(--tm-text-secondary);
  text-align: center;
}

.tt-preview-container {
  position: relative;
  max-width: 100%;
  border: 1px solid var(--tm-border);
  border-radius: 8px;
  overflow: hidden;
  background: var(--tm-bg-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
}

.tt-preview-container canvas {
  max-width: 100%;
  max-height: 500px;
  display: block;
}

.tt-preview-dims {
  font-size: 12px;
  color: var(--tm-text-disabled);
  text-align: center;
}

.tt-download-row {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: center;
}

.tt-ios-hint {
  display: none;
  font-size: 12px;
  color: var(--tm-text-secondary);
  text-align: center;
  font-style: italic;
}

.tt-ios-hint.visible {
  display: block;
}


/* ============================================================
   SECTION: SEO Content
   ============================================================ */

.tt-seo {
  margin-top: 26px;
  margin-left: auto;
  margin-right: auto;
  max-width: 1120px;
  border-top: 1px solid var(--tm-border);
  padding-top: 26px;
  display: grid;
  gap: 18px;
}

.tt-seo__hero {
  background: linear-gradient(135deg, var(--tm-bg-secondary), var(--tm-bg-primary));
  border: 1px solid var(--tm-border);
  border-radius: 16px;
  padding: 18px;
}

.tt-seo__eyebrow {
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.45px;
  color: var(--tm-red);
  margin-bottom: 8px;
}

.tt-seo__title {
  font-size: 28px;
  line-height: 1.15;
  color: var(--tm-text-primary);
  margin-bottom: 10px;
}

.tt-seo__lead {
  font-size: 14px;
  line-height: 1.55;
  color: var(--tm-text-secondary);
  max-width: 950px;
}

.tt-seo__section {
  border: 1px solid var(--tm-border);
  border-radius: 16px;
  background: var(--tm-bg-primary);
  padding: 16px;
}

.tt-seo__section-title {
  font-size: 20px;
  line-height: 1.2;
  color: var(--tm-text-primary);
  margin-bottom: 12px;
}

.tt-seo__section-lead {
  font-size: 14px;
  color: var(--tm-text-secondary);
  margin-bottom: 10px;
  line-height: 1.55;
}

/* --- Dimension tables --- */
.tt-dim-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 13px;
  margin-bottom: 6px;
}

.tt-dim-table th {
  text-align: left;
  font-size: 11px;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.4px;
  color: var(--tm-text-secondary);
  padding: 8px 10px;
  border-bottom: 2px solid var(--tm-border);
}

.tt-dim-table td {
  padding: 10px;
  border-bottom: 1px solid var(--tm-border);
  color: var(--tm-text-primary);
}

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

.tt-dim-table .td-use {
  font-weight: 500;
}

.tt-dim-table .td-dims {
  color: var(--tm-text-secondary);
  font-variant-numeric: tabular-nums;
}

.tt-dim-table .td-ratio {
  color: var(--tm-text-disabled);
  font-size: 12px;
}

/* --- Tips grid --- */
.tt-seo__grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
}

.tt-seo-card {
  border: 1px solid var(--tm-border);
  border-radius: 16px;
  background: var(--tm-bg-secondary);
  padding: 12px;
}

.tt-seo-card__title {
  font-size: 15px;
  color: var(--tm-text-primary);
  margin-bottom: 6px;
}

.tt-seo-card__text {
  font-size: 13px;
  line-height: 1.45;
  color: var(--tm-text-secondary);
}

.tt-seo-card__text a {
  color: var(--tm-link-color);
  text-decoration: none;
}

.tt-seo-card__text a:hover {
  text-decoration: underline;
}


/* ============================================================
   SECTION: FAQ
   ============================================================ */

.tt-seo-faq {
  display: grid;
  gap: 8px;
}

.tt-seo-faq__item {
  border: 1px solid var(--tm-border);
  border-radius: 12px;
  background: var(--tm-bg-secondary);
  padding: 0 12px;
}

.tt-seo-faq__item summary {
  cursor: pointer;
  min-height: 44px;
  display: flex;
  align-items: center;
  color: var(--tm-text-primary);
  font-size: 14px;
  font-weight: 600;
  list-style: none;
}

.tt-seo-faq__item summary::-webkit-details-marker {
  display: none;
}

.tt-seo-faq__item summary::after {
  content: '+';
  margin-left: auto;
  font-size: 18px;
  font-weight: 400;
  color: var(--tm-text-secondary);
  transition: transform 0.2s;
}

.tt-seo-faq__item[open] summary::after {
  content: '-';
}

.tt-seo-faq__item p {
  padding: 0 0 12px;
  color: var(--tm-text-secondary);
  font-size: 13px;
  line-height: 1.5;
}

.tt-seo-faq__item summary:focus-visible {
  outline: 2px solid var(--tm-link-color);
  outline-offset: 2px;
}


/* ============================================================
   CTA Section
   ============================================================ */

.tt-seo-cta {
  border: 1px solid var(--tm-border);
  border-radius: 16px;
  padding: 16px;
  background: linear-gradient(135deg, rgba(255, 0, 50, 0.07), rgba(255, 0, 50, 0.03));
}

.tt-seo-cta__title {
  font-size: 20px;
  line-height: 1.2;
  color: var(--tm-text-primary);
  margin-bottom: 8px;
}

.tt-seo-cta__text {
  font-size: 14px;
  color: var(--tm-text-secondary);
  margin-bottom: 12px;
}

.tt-seo-cta__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}


/* ============================================================
   Focus visible for all interactive elements
   ============================================================ */

.tt-shell *:focus-visible {
  outline: 2px solid var(--tm-link-color);
  outline-offset: 2px;
}


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

@media (max-width: 1024px) {
  .tt-size-grid {
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  }
}

@media (max-width: 767px) {
  .tt-seo__grid {
    grid-template-columns: 1fr;
  }
  .tt-size-grid {
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
  }
  .tt-dim-table {
    font-size: 12px;
  }
  .tt-dim-table th, .tt-dim-table td {
    padding: 8px 6px;
  }
  .tt-seo__title {
    font-size: 22px;
  }
  .tt-seo__section-title {
    font-size: 18px;
  }
  .tt-custom-size {
    flex-wrap: wrap;
  }
}

@media (max-width: 478px) {
  .tt-shell {
    padding: 16px 12px;
  }
  .tt-header__title {
    font-size: 17px;
  }
  .tt-upload-zone {
    padding: 28px 14px;
  }
  .tt-upload-zone__icon {
    font-size: 36px;
  }
  .tt-upload-zone__text {
    font-size: 14px;
  }
  .tt-platform-chips {
    gap: 6px;
  }
  .tt-platform-chip {
    padding: 8px 12px;
    font-size: 12px;
  }
  .tt-size-grid {
    grid-template-columns: 1fr 1fr;
    gap: 8px;
  }
  .tt-size-card {
    padding: 10px 12px;
  }
  .tt-custom-size__input {
    width: 90px;
  }
  .tt-mode-btn {
    padding: 10px 14px;
    font-size: 12px;
  }
  .tt-seo__title {
    font-size: 20px;
  }
  .tt-seo-cta__actions {
    flex-direction: column;
  }
  .tt-seo-cta__actions .tt-btn {
    width: 100%;
  }
  .tt-download-row {
    flex-direction: column;
    align-items: stretch;
  }
  .tt-download-row .tt-btn {
    width: 100%;
  }
}