@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

:root {
  --bg: #1e1e1e;
  --bg-card: #262626;
  --bg-card-hover: #2e2e2e;
  --bg-input: #14151a;
  --border: #383838;
  --text: #f2f2f3;
  --text-muted: #9a9ca3;
  --accent: #e4201b;
  --accent-2: #f0b429;
  --success: #2fbf71;
  --danger: #ff7a7a;
  --radius: 12px;
  --font-sans: 'Inter', -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --font-mono: 'JetBrains Mono', 'Fira Code', 'IBM Plex Mono', Consolas, monospace;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: var(--font-sans);
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
}

.app {
  max-width: 900px;
  margin: 0 auto;
  padding: 0 20px 64px;
}

.topbar {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 22px 0;
  border-bottom: 1px solid var(--border);
  margin-bottom: 28px;
}

.topbar .brand {
  display: flex;
  align-items: center;
  gap: 10px;
}

.topbar .brand img {
  height: 32px;
}

.topbar .brand .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
}

.topbar .tool-name {
  color: var(--text-muted);
  font-size: 14px;
  font-weight: 600;
  padding-left: 12px;
  border-left: 1px solid var(--border);
}

.tabs {
  display: flex;
  align-items: center;
  gap: 4px;
  margin: 20px 0 28px;
}

.tab-btn {
  background: none;
  border: none;
  color: var(--text-muted);
  font-family: var(--font-sans);
  font-size: 15px;
  padding: 8px 18px;
  border-radius: 999px;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.tab-btn:hover {
  color: var(--text);
  border-bottom-color: var(--accent);
}

.tab-btn.active {
  background: var(--accent);
  color: #fff;
  font-weight: 700;
  border-bottom-color: transparent;
}

.tab-btn.active:hover {
  border-bottom-color: transparent;
}

.panel[hidden] {
  display: none;
}

.page-title {
  font-size: 28px;
  font-weight: 800;
  letter-spacing: -0.02em;
  margin: 0 0 6px;
}

.subtitle {
  color: var(--text-muted);
  margin: 0 0 24px;
  font-size: 14px;
}

.dropzone {
  border: 2px dashed var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  padding: 48px 24px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.15s, color 0.15s;
}

.dropzone:hover,
.dropzone.dragover {
  border-color: var(--accent);
  color: var(--accent);
}

.dropzone-content svg {
  color: var(--text-muted);
  margin-bottom: 12px;
}

.dropzone:hover .dropzone-content svg,
.dropzone.dragover .dropzone-content svg {
  color: var(--accent);
}

.dropzone-content p {
  margin: 4px 0;
  color: var(--text);
}

.hint {
  color: var(--text-muted);
  font-size: 12px;
}

.controls {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  margin-top: 20px;
  display: grid;
  gap: 16px;
}

.controls[hidden] {
  display: none;
}

.control-row {
  display: grid;
  grid-template-columns: 200px 1fr;
  align-items: center;
  gap: 12px;
}

.control-row label {
  font-size: 13px;
  color: var(--text-muted);
}

.control-row.buttons {
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

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

.checkbox-wrap input[type="checkbox"] {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
  flex-shrink: 0;
}

.checkbox-wrap .hint {
  margin: 0;
}

select, input[type="range"] {
  width: 100%;
}

select {
  background: var(--bg-input);
  color: var(--text);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 10px 12px;
  font-size: 14px;
  font-family: var(--font-sans);
}

select:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(228, 32, 27, 0.25);
}

input[type="range"] {
  accent-color: var(--accent);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: 8px;
  padding: 10px 18px;
  font-size: 14px;
  font-weight: 600;
  font-family: var(--font-sans);
  cursor: pointer;
}

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

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:not(:disabled):hover {
  filter: brightness(1.1);
}

.btn-secondary {
  background: var(--bg-card-hover);
  color: var(--text);
  border: 1px solid var(--border);
}

.btn-secondary:not(:disabled):hover {
  background: #2c2f37;
}

.results {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.result-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 16px;
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 14px;
  align-items: center;
}

.result-thumb {
  width: 64px;
  height: 64px;
  border-radius: 8px;
  object-fit: cover;
  background: var(--bg-card-hover);
}

.result-info {
  min-width: 0;
}

.result-name {
  font-size: 14px;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.result-sizes {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
  margin-top: 4px;
}

.result-sizes .saved {
  display: inline-block;
  color: var(--success);
  background: rgba(47, 191, 113, 0.15);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  letter-spacing: 0.03em;
}

.result-sizes .grew {
  display: inline-block;
  color: var(--danger);
  background: rgba(214, 69, 69, 0.15);
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 11px;
  letter-spacing: 0.03em;
}

.result-actions {
  display: flex;
  align-items: center;
  gap: 6px;
}

.icon-btn {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--bg-card-hover);
  color: var(--text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 14px;
  padding: 0;
}

.icon-btn:hover:not(:disabled) {
  color: var(--text);
  background: #2c2f37;
  border-color: var(--accent);
}

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

.result-actions .btn-primary {
  padding: 8px 14px;
  font-size: 13px;
}

.progress-bar {
  height: 3px;
  background: var(--bg-card-hover);
  border-radius: 2px;
  overflow: hidden;
  margin-top: 8px;
}

.progress-bar-fill {
  height: 100%;
  background: var(--accent);
  width: 0%;
  transition: width 0.2s;
}

.site-footer {
  text-align: center;
  margin-top: 40px;
  padding-top: 24px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 12px;
}

.preview-modal {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
}

.preview-modal[hidden] {
  display: none;
}

.preview-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
}

.preview-dialog {
  position: relative;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  max-width: min(90vw, 900px);
  max-height: 90vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.4);
}

.preview-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  gap: 12px;
}

.preview-name {
  font-weight: 600;
  font-size: 14px;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.preview-close {
  background: none;
  border: none;
  color: var(--text-muted);
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  padding: 4px 8px;
  border-radius: 6px;
}

.preview-close:hover {
  background: var(--bg-card-hover);
  color: var(--text);
}

.preview-body {
  flex: 1;
  min-height: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  background: #000;
  padding: 12px;
}

.preview-body img {
  max-width: 100%;
  max-height: 70vh;
  object-fit: contain;
  border-radius: 4px;
}

.preview-footer {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 12px 16px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.preview-info {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--text-muted);
}

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

.crop-results {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
  gap: 16px;
  margin-top: 20px;
}

.crop-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.crop-box {
  position: relative;
  overflow: hidden;
  background: #000;
  cursor: grab;
  touch-action: none;
  aspect-ratio: 3 / 2;
}

.crop-box.dragging {
  cursor: grabbing;
}

.crop-box .crop-img {
  position: absolute;
  top: 0;
  left: 0;
  max-width: none;
  user-select: none;
  pointer-events: none;
}

.crop-info {
  padding: 12px 14px 0;
}

.crop-info .result-sizes {
  display: flex;
  align-items: center;
  gap: 6px;
  margin-top: 4px;
}

.ratio-tag {
  display: inline-block;
  background: var(--bg-card-hover);
  color: var(--text-muted);
  font-size: 10px;
  font-weight: 600;
  padding: 1px 7px;
  border-radius: 20px;
  letter-spacing: 0.03em;
}

.crop-actions {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 14px 14px;
  margin-top: auto;
}

.crop-actions .btn-primary {
  flex: 1;
  padding: 8px 14px;
  font-size: 13px;
}

@media (max-width: 560px) {
  .control-row {
    grid-template-columns: 1fr;
    gap: 6px;
  }
  .result-card {
    grid-template-columns: 48px 1fr;
  }
  .result-actions {
    grid-column: 1 / -1;
  }
}