/* PicDriver DPI / PPI / Resolution Tools Suite Stylesheet */

/* Preset Chips Bar */
.preset-chips-container {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  align-items: center;
  margin-bottom: 24px;
}

.preset-chip {
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 6px 14px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 500;
  cursor: pointer;
  white-space: nowrap;
  transition: all 0.18s ease;
}

.preset-chip:hover {
  background: rgba(99, 102, 241, 0.15);
  border-color: var(--brand-primary);
  color: #ffffff;
  transform: translateY(-1px);
}

.preset-chip.active {
  background: var(--brand-primary);
  border-color: var(--brand-primary);
  color: #ffffff;
  font-weight: 600;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.35);
}

/* Workspace Wrapper */
.dpi-workspace {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 16px;
}

/* Tabs Header */
.dpi-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  background: rgba(15, 23, 42, 0.8);
  padding: 6px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}

.dpi-tab-btn {
  flex: 1;
  min-width: 160px;
  background: transparent;
  border: none;
  color: var(--text-secondary);
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  transition: all 0.2s ease;
}

.dpi-tab-btn:hover {
  color: var(--text-primary);
  background: rgba(255, 255, 255, 0.04);
}

.dpi-tab-btn.active {
  background: var(--brand-primary);
  color: #ffffff;
  box-shadow: 0 2px 10px rgba(99, 102, 241, 0.3);
}

/* Tab Panels */
.dpi-tab-panel {
  display: none;
  animation: fadeIn 0.2s ease;
}

.dpi-tab-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(4px); }
  to { opacity: 1; transform: translateY(0); }
}

/* Calculator Grid */
.calc-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(360px, 1fr));
  gap: 20px;
  margin-bottom: 24px;
}

/* Calculator Card */
.calc-card-panel {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 22px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  position: relative;
  overflow: hidden;
}

.calc-card-panel::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--brand-gradient);
  opacity: 0.8;
}

.calc-title-bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.calc-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}

.calc-badge {
  background: rgba(99, 102, 241, 0.15);
  color: #818cf8;
  padding: 3px 8px;
  border-radius: 4px;
  font-size: 0.75rem;
  font-family: var(--font-mono);
  font-weight: 600;
}

/* Form Inputs */
.calc-input-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.calc-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  justify-content: space-between;
}

.calc-input-row {
  display: flex;
  gap: 8px;
  align-items: center;
}

.calc-input {
  flex: 1;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--border-subtle);
  color: #fff;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.95rem;
  transition: all 0.2s ease;
}

.calc-input:focus {
  outline: none;
  border-color: var(--brand-primary);
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.calc-select {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid var(--border-subtle);
  color: #fff;
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  font-size: 0.88rem;
  font-weight: 500;
  cursor: pointer;
}

.calc-select:focus {
  outline: none;
  border-color: var(--brand-primary);
}

/* Result Box */
.calc-result-box {
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(99, 102, 241, 0.3);
  border-radius: var(--radius-sm);
  padding: 14px 16px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.calc-result-header {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.5px;
  font-weight: 700;
}

.calc-result-main {
  font-family: var(--font-mono);
  font-size: 1.5rem;
  font-weight: 800;
  color: #38bdf8;
  display: flex;
  align-items: baseline;
  gap: 6px;
}

.calc-result-unit {
  font-size: 0.9rem;
  color: var(--text-secondary);
  font-weight: 500;
}

.calc-result-meta {
  font-size: 0.82rem;
  color: var(--text-secondary);
  display: flex;
  flex-direction: column;
  gap: 4px;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
  padding-top: 8px;
}

/* Quality Rating Pill */
.quality-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 10px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.quality-high {
  background: rgba(16, 185, 129, 0.15);
  color: #34d399;
  border: 1px solid rgba(16, 185, 129, 0.3);
}

.quality-medium {
  background: rgba(245, 158, 11, 0.15);
  color: #fbbf24;
  border: 1px solid rgba(245, 158, 11, 0.3);
}

.quality-low {
  background: rgba(239, 68, 68, 0.15);
  color: #f87171;
  border: 1px solid rgba(239, 68, 68, 0.3);
}

/* Formula Box */
.formula-callout {
  background: rgba(255, 255, 255, 0.03);
  border-left: 3px solid var(--brand-primary);
  padding: 8px 12px;
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  font-size: 0.78rem;
  color: var(--text-secondary);
  font-family: var(--font-mono);
}

/* Image Inspector View */
.inspector-layout {
  display: grid;
  grid-template-columns: 1fr 380px;
  gap: 20px;
}

@media (max-width: 900px) {
  .inspector-layout {
    grid-template-columns: 1fr;
  }
}

.inspector-preview-card {
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.preview-stage {
  min-height: 320px;
  background: #070a12;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  position: relative;
}

.preview-stage img {
  max-width: 100%;
  max-height: 400px;
  object-fit: contain;
  box-shadow: 0 4px 20px rgba(0,0,0,0.6);
}

/* Metadata Data Table */
.meta-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.85rem;
}

.meta-table tr {
  border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.meta-table tr:last-child {
  border-bottom: none;
}

.meta-table td {
  padding: 8px 6px;
}

.meta-table td:first-child {
  color: var(--text-secondary);
  width: 45%;
}

.meta-table td:last-child {
  font-family: var(--font-mono);
  color: var(--text-primary);
  font-weight: 600;
  text-align: right;
}

/* Quick Standard Sizing Buttons */
.shortcut-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 6px;
}

.shortcut-btn {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  padding: 6px 4px;
  border-radius: var(--radius-sm);
  font-size: 0.76rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all 0.15s ease;
}

.shortcut-btn:hover, .shortcut-btn.active {
  background: rgba(99, 102, 241, 0.2);
  border-color: var(--brand-primary);
  color: #fff;
}