/* ========================================
   TOOL HERO
======================================== */

.tool-hero {
  padding: 70px 0 60px;

  background: var(--background-secondary);

  border-bottom: 1px solid var(--border-color);
}

/* ========================================
   BREADCRUMB
======================================== */

.breadcrumb {
  display: flex;

  align-items: center;

  gap: 8px;

  margin-bottom: 40px;

  font-size: 13px;

  color: var(--text-secondary);
}

.breadcrumb a {
  color: var(--primary-color);

  font-weight: 500;
}

.breadcrumb i {
  font-size: 18px;
}

/* ========================================
   TOOL HEADER
======================================== */

.tool-header {
  max-width: 700px;

  margin: 0 auto;

  text-align: center;
}

.tool-page-icon {
  width: 70px;

  height: 70px;

  margin: 0 auto 20px;

  display: flex;

  align-items: center;

  justify-content: center;

  border-radius: 18px;

  background: var(--primary-light);

  color: var(--primary-color);

  font-size: 36px;
}

.tool-header h1 {
  margin-bottom: 16px;

  font-size: clamp(32px, 5vw, 52px);

  line-height: 1.2;

  letter-spacing: -2px;
}

.tool-header p {
  max-width: 600px;

  margin: 0 auto;

  color: var(--text-secondary);

  font-size: 15px;
}

/* ========================================
   COMPRESSOR SECTION
======================================== */

.compressor-section {
  padding: 80px 0;

  background: var(--background-color);
}

.compressor-wrapper {
  max-width: 1000px;

  margin: 0 auto;
}

/* ========================================
   UPLOAD AREA
======================================== */

.upload-area {
  padding: 70px 30px;

  text-align: center;

  border: 2px dashed var(--border-color);

  border-radius: 20px;

  background: var(--background-secondary);

  transition: var(--transition);
}

.upload-area:hover,
.upload-area.dragover {
  border-color: var(--primary-color);

  background: var(--primary-light);
}

.upload-icon {
  width: 70px;

  height: 70px;

  margin: 0 auto 20px;

  display: flex;

  align-items: center;

  justify-content: center;

  border-radius: 50%;

  background: var(--primary-light);

  color: var(--primary-color);

  font-size: 36px;
}

.upload-area h2 {
  margin-bottom: 8px;

  font-size: 22px;
}

.upload-area p {
  margin-bottom: 24px;

  color: var(--text-secondary);

  font-size: 14px;
}

.upload-button {
  display: inline-flex;

  align-items: center;

  gap: 8px;

  padding: 13px 22px;

  border-radius: 8px;

  background: var(--primary-color);

  color: #ffffff;

  font-size: 14px;

  font-weight: 600;

  cursor: pointer;

  transition: var(--transition);
}

.upload-button:hover {
  background: var(--primary-hover);

  transform: translateY(-2px);
}

.upload-info {
  display: block;

  margin-top: 16px;

  font-size: 12px;

  color: var(--text-secondary);
}

/* ========================================
   PREVIEW GRID
======================================== */

.preview-grid {
  display: grid;

  grid-template-columns: repeat(2, 1fr);

  gap: 20px;
}

/* ========================================
   PREVIEW CARD
======================================== */

.preview-card {
  overflow: hidden;

  border: 1px solid var(--border-color);

  border-radius: 16px;

  background: var(--card-background);
}

.preview-header {
  padding: 16px 20px;

  border-bottom: 1px solid var(--border-color);
}

.preview-header h3 {
  font-size: 14px;
}

/* ========================================
   IMAGE PREVIEW
======================================== */

.image-preview {
  height: 320px;

  display: flex;

  align-items: center;

  justify-content: center;

  padding: 20px;

  background: var(--background-secondary);

  overflow: hidden;
}

.image-preview img {
  max-width: 100%;

  max-height: 100%;

  object-fit: contain;
}

/* ========================================
   IMAGE INFO
======================================== */

.image-info {
  display: flex;

  align-items: center;

  justify-content: space-between;

  padding: 14px 20px;

  border-top: 1px solid var(--border-color);

  font-size: 13px;
}

.image-info span {
  color: var(--text-secondary);
}

.image-info strong {
  color: var(--text-color);
}

/* ========================================
   COMPRESSION SETTINGS
======================================== */

.compression-settings {
  margin-top: 24px;

  padding: 24px;

  border: 1px solid var(--border-color);

  border-radius: 16px;

  background: var(--card-background);
}

.settings-header {
  display: flex;

  align-items: center;

  justify-content: space-between;

  gap: 20px;

  margin-bottom: 20px;
}

.settings-header h3 {
  margin-bottom: 4px;

  font-size: 16px;
}

.settings-header p {
  font-size: 13px;

  color: var(--text-secondary);
}

#qualityValue {
  min-width: 50px;

  text-align: right;

  color: var(--primary-color);
}

/* ========================================
   RANGE SLIDER
======================================== */

#qualitySlider {
  width: 100%;

  height: 6px;

  appearance: none;

  border-radius: 10px;

  background: var(--border-color);

  outline: none;

  cursor: pointer;
}

#qualitySlider::-webkit-slider-thumb {
  appearance: none;

  width: 20px;

  height: 20px;

  border-radius: 50%;

  background: var(--primary-color);

  cursor: pointer;

  box-shadow: 0 0 0 5px var(--primary-light);
}

#qualitySlider::-moz-range-thumb {
  width: 20px;

  height: 20px;

  border: none;

  border-radius: 50%;

  background: var(--primary-color);

  cursor: pointer;
}

.range-labels {
  display: flex;

  justify-content: space-between;

  margin-top: 10px;

  font-size: 11px;

  color: var(--text-secondary);
}

/* ========================================
   COMPRESSION RESULT
======================================== */

.compression-result {
  display: flex;

  align-items: center;

  gap: 14px;

  margin-top: 20px;

  padding: 18px 20px;

  border: 1px solid rgba(16, 185, 129, 0.2);

  border-radius: 12px;

  background: rgba(16, 185, 129, 0.08);
}

.result-icon {
  width: 40px;

  height: 40px;

  display: flex;

  align-items: center;

  justify-content: center;

  border-radius: 50%;

  background: var(--success-color);

  color: #ffffff;

  font-size: 22px;
}

.result-info {
  display: flex;

  flex-direction: column;
}

.result-info span {
  font-size: 12px;

  color: var(--text-secondary);
}

.result-info strong {
  font-size: 18px;

  color: var(--success-color);
}

/* ========================================
   TOOL ACTIONS
======================================== */

.tool-actions {
  display: flex;

  align-items: center;

  justify-content: flex-end;

  gap: 12px;

  margin-top: 24px;
}

.tool-actions button:disabled {
  opacity: 0.5;

  cursor: not-allowed;

  transform: none;
}

/* ========================================
   INFO SECTION
======================================== */

.tool-info-section {
  padding: 80px 0;

  background: var(--background-secondary);
}

.info-content {
  max-width: 1000px;

  margin: 0 auto;
}

.info-content > h2 {
  margin-bottom: 12px;

  text-align: center;

  font-size: 32px;
}

.info-content > p {
  max-width: 600px;

  margin: 0 auto 50px;

  text-align: center;

  font-size: 14px;

  color: var(--text-secondary);
}

/* ========================================
   STEPS GRID
======================================== */

.steps-grid {
  display: grid;

  grid-template-columns: repeat(3, 1fr);

  gap: 20px;
}

.step-card {
  padding: 28px;

  border: 1px solid var(--border-color);

  border-radius: 16px;

  background: var(--card-background);
}

.step-number {
  margin-bottom: 18px;

  color: var(--primary-color);

  font-size: 13px;

  font-weight: 700;
}

.step-card h3 {
  margin-bottom: 8px;

  font-size: 16px;
}

.step-card p {
  font-size: 13px;

  color: var(--text-secondary);
}

/* ========================================
   SETTING GROUP
======================================== */

.setting-group {
  margin-top: 28px;
}

/* ========================================
   SETTING LABEL
======================================== */

.setting-label {
  display: flex;

  align-items: center;

  justify-content: space-between;

  margin-bottom: 14px;
}

.setting-label label {
  font-size: 14px;

  font-weight: 600;

  color: var(--text-color);
}

/* ========================================
   FORMAT OPTIONS
======================================== */

.format-options {
  display: grid;

  grid-template-columns: repeat(3, 1fr);

  gap: 12px;
}

.format-option {
  position: relative;

  cursor: pointer;
}

.format-option input {
  position: absolute;

  opacity: 0;
}

.format-option span {
  min-height: 54px;

  display: flex;

  align-items: center;

  justify-content: center;

  gap: 8px;

  border: 1px solid var(--border-color);

  border-radius: 10px;

  background: var(--background-secondary);

  color: var(--text-secondary);

  font-size: 13px;

  font-weight: 600;

  transition: var(--transition);
}

.format-option span i {
  font-size: 20px;
}

.format-option:hover span {
  border-color: var(--primary-color);

  color: var(--primary-color);
}

/* SELECTED FORMAT */

.format-option input:checked + span {
  border-color: var(--primary-color);

  background: var(--primary-light);

  color: var(--primary-color);

  box-shadow: 0 0 0 2px rgba(79, 70, 229, 0.1);
}

/* ========================================
   PROCESSING STATE
======================================== */

.btn.loading {
  pointer-events: none;

  opacity: 0.7;
}

.btn.loading i {
  animation: spin 1s linear infinite;
}

@keyframes spin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

/* ========================================
   RESPONSIVE FORMAT OPTIONS
======================================== */

@media (max-width: 600px) {
  .format-options {
    grid-template-columns: 1fr;
  }

  .format-option span {
    justify-content: flex-start;

    padding: 0 18px;
  }
}

/* ========================================
   RESPONSIVE
======================================== */

@media (max-width: 768px) {
  .tool-hero {
    padding: 50px 0;
  }

  .breadcrumb {
    margin-bottom: 30px;
  }

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

  .image-preview {
    height: 260px;
  }

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

  .tool-actions {
    flex-direction: column-reverse;
  }

  .tool-actions .btn {
    width: 100%;
  }
}

@media (max-width: 480px) {
  .upload-area {
    padding: 50px 20px;
  }

  .upload-area h2 {
    font-size: 20px;
  }

  .compression-settings {
    padding: 20px;
  }

  .settings-header {
    align-items: flex-start;
  }
}