:root {
 --diff-primary: #000000;
 --diff-matte: #171717;
 --diff-accent: #181c1f;
 --diff-border: #272727;
 --diff-color: #cacaca;
 --diff-topbar-height: 70px;
 --diff-topbar-gap: 2vh;
 --diff-topbar-total: calc(var(--diff-topbar-height) + var(--diff-topbar-gap) + 16px);
 --diff-removed-text: #f87171;
 --diff-added-text: #4ade80;
}
::selection {
 background: rgba(255, 255, 255, 0.15);
}
.diff-topbar {
 position: fixed;
 top: var(--diff-topbar-gap);
 left: 50%;
 transform: translateX(-50%);
 width: fit-content;
 background: var(--diff-matte);
 padding: 6px 16px;
 display: flex;
 align-items: center;
 border-radius: 30px;
 z-index: 1000;
 height: var(--diff-topbar-height);
 border: 1px solid var(--diff-border);
 box-shadow: 0 10px 30px rgba(0,0,0,0.8);
}
.diff-topbar-section {
 display: flex;
 align-items: center;
 flex: 1;
 color: var(--diff-color);
 justify-content: space-between;
 gap: 4px;
}
.diff-topbar-button {
 background: var(--diff-matte);
 border: none;
 color: var(--diff-color);
 cursor: pointer;
 width: auto;
 min-width: 56px;
 height: 56px;
 border-radius: 16px;
 display: flex;
 flex-direction: column;
 align-items: center;
 justify-content: center;
 margin: 0 4px;
 transition: 0.2s;
 font-family: 'classy', sans-serif;
 font-size: 11px;
 gap: 4px;
}
.diff-topbar-button.active {
 background: var(--diff-accent);
 color: #fff;
}
.diff-topbar .material-symbols-rounded {
 font-size: 22px;
 color: #999999;
}
.diff-topbar-button.active .material-symbols-rounded {
 color: #fff;
}
.diff-viewport {
 height: 100dvh;
 width: 100vw;
 position: relative;
 overflow: hidden;
 padding-top: var(--diff-topbar-total);
}
.diff-view {
 width: 100%;
 height: 100%;
 display: none;
 background: var(--diff-primary);
}
.diff-view.active {
 display: block;
}
.diff-scroll-container {
 display: flex;
 width: 100%;
 height: 100%;
}
.diff-editor-wrapper, .diff-lines-container {
 flex: 1;
 overflow: auto;
 height: 100%;
 display: flex;
 flex-direction: column;
}
.diff-editor, .diff-lines, .diff-editor-gutter, .diff-gutter-cell, .diff-content-cell {
 font-family: 'Source Code Pro', monospace;
 font-size: 13px;
 line-height: 1.6;
}
.diff-editor-gutter, .diff-gutter-cell {
 flex-shrink: 0;
 background: var(--diff-matte);
 border-right: 1px solid var(--diff-border);
 text-align: right;
 color: #666;
 user-select: none;
 min-width: 50px;
}
.diff-editor-gutter {
 padding: 16px 12px 16px 8px;
 overflow: hidden;
}
.diff-editor {
 flex: 1;
 background: transparent;
 border: none;
 color: var(--diff-color);
 padding: 16px;
 resize: none;
 outline: none;
 white-space: pre;
 overflow: auto;
}
.diff-lines {
 padding: 16px 0;
}
.diff-line-row {
 display: flex;
}
.diff-gutter-cell {
 padding: 0 12px 0 8px;
}
.diff-content-cell {
 flex: 1;
 padding: 0 16px;
 white-space: pre-wrap;
 word-break: break-all;
}
.diff-removed .diff-content-cell {
 color: var(--diff-removed-text);
}
.diff-added .diff-content-cell {
 color: var(--diff-added-text);
}
.diff-word-removed-strong {
 color: #ff8a8a;
 text-decoration: underline;
}
.diff-word-added-strong {
 color: #a7f3d0;
 text-decoration: underline;
}
.diff-custom-overlay {
 position: fixed;
 background: var(--diff-accent);
 border: 1px solid var(--diff-border);
 border-radius: 16px;
 padding: 8px;
 display: flex;
 flex-direction: column;
 gap: 6px;
 box-shadow: 0 8px 30px rgba(0,0,0,0.9);
 z-index: 10000;
 backdrop-filter: blur(8px);
 min-width: 220px;
 opacity: 0;
 pointer-events: none;
 transition: opacity 0.1s ease;
}
.diff-custom-overlay.visible {
 opacity: 1;
 pointer-events: auto;
}
.diff-overlay-btn {
 background: transparent;
 border: none;
 color: var(--diff-color);
 padding: 10px 16px;
 border-radius: 8px;
 cursor: pointer;
 font-size: 13px;
 display: flex;
 align-items: center;
 gap: 12px;
 white-space: nowrap;
 text-align: left;
 font-family: 'classy', sans-serif;
}
.diff-overlay-btn .material-symbols-rounded {
 font-size: 20px;
}
.diff-overlay-btn:hover, .diff-overlay-btn:active {
 background: var(--diff-matte);
 color: #fff;
}
.diff-settings-wrapper {
 padding: 20px;
 max-width: 600px;
 margin: 0 auto;
 height: 100%;
 overflow-y: auto;
 font-size: 14px;
}
.diff-settings-wrapper .material-symbols-rounded {
 font-size: 22px;
}
.diff-settings-card {
 background: var(--diff-matte);
 border: 1px solid var(--diff-border);
 border-radius: 16px;
 padding: 20px;
 margin-bottom: 20px;
}
.diff-settings-row {
 display: flex;
 justify-content: space-between;
 align-items: center;
 padding: 14px 0;
 border-bottom: 1px solid var(--diff-border);
}
.diff-settings-row:last-child {
 border: none;
 padding-bottom: 0;
}
.diff-settings-row:first-child {
 padding-top: 0;
}
.diff-action-grid {
 display: grid;
 grid-template-columns: 1fr 1fr;
 gap: 12px;
}
.diff-btn-action {
 background: var(--diff-accent);
 border: 1px solid var(--diff-border);
 color: var(--diff-color);
 padding: 14px;
 border-radius: 12px;
 font-size: 13.2px;
 display: flex;
 align-items: center;
 justify-content: center;
 gap: 8px;
 cursor: pointer;
 font-family: 'classy', sans-serif;
}
.diff-btn-action:active {
 background: var(--diff-matte);
}
input[type="checkbox"] {
 width: 16px;
 height: 16px;
 accent-color: #272727;
}
@media (max-width: 600px) {
 .diff-topbar {
  width: 95%;
  padding: 6px 10px;
  border-radius: 20px;
 }
 .diff-topbar-button {
  min-width: 0;
  flex: 1;
  padding: 4px;
 }
}