truss-image 0.15.0

:root {
  --bg: #e5ded2;
  --bg-deep: #d0c7b8;
  --paper: rgba(248, 244, 237, 0.9);
  --paper-strong: #f7f1e7;
  --paper-muted: rgba(255, 255, 255, 0.5);
  --ink: #241f1a;
  --muted: #655d53;
  --line: rgba(82, 72, 60, 0.14);
  --accent: #355f57;
  --accent-strong: #24453f;
  --accent-warm: #9f6246;
  --danger: #8b4a3c;
  --success: #2f6b45;
  --shadow: 0 18px 42px rgba(44, 36, 29, 0.1);
  --radius: 22px;
  --radius-tight: 14px;
}

* {
  box-sizing: border-box;
}

html {
  font-size: 16px;
}

body {
  margin: 0;
  min-height: 100vh;
  overflow: auto;
  font-family: "Avenir Next", "Gill Sans", "Trebuchet MS", sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.5), transparent 28%),
    linear-gradient(135deg, rgba(53, 95, 87, 0.08), transparent 38%),
    linear-gradient(180deg, var(--bg), var(--bg-deep));
}

img {
  display: block;
  max-width: 100%;
}

button,
input,
select,
a {
  font: inherit;
}

a {
  color: inherit;
}

.page-shell {
  width: min(1260px, calc(100% - 1.25rem));
  height: 100dvh;
  margin: 0 auto;
  padding: 0.45rem 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 0.5rem;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.42rem 0.65rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: rgba(248, 244, 237, 0.8);
  backdrop-filter: blur(12px);
  box-shadow: 0 10px 24px rgba(44, 36, 29, 0.08);
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 3.8rem;
  min-height: 1.8rem;
  padding: 0.18rem 0.7rem;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #f4eee4;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: lowercase;
}

.topbar-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
}

.topbar-nav a {
  padding: 0.28rem 0.62rem;
  border-radius: 999px;
  color: var(--muted);
  text-decoration: none;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.topbar-nav a:hover {
  background: rgba(255, 255, 255, 0.54);
  color: var(--ink);
  transform: translateY(-1px);
}

.topbar-nav a:focus-visible {
  background: rgba(255, 255, 255, 0.54);
  color: var(--ink);
  transform: translateY(-1px);
  outline: 2px solid rgba(53, 95, 87, 0.28);
  outline-offset: 2px;
}

.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--paper);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow);
}

.panel::before {
  content: "";
  position: absolute;
  inset: 0 auto auto 0;
  width: 100%;
  height: 3px;
  background: linear-gradient(90deg, var(--accent), rgba(53, 95, 87, 0));
  opacity: 0.7;
}

.layout {
  min-height: 0;
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(300px, 0.74fr);
  gap: 0.75rem;
}

.editor-column {
  min-height: 0;
  display: grid;
  grid-template-rows: auto minmax(0, 1fr);
  gap: 0.75rem;
}

.stack {
  min-height: 0;
  display: grid;
  gap: 0.75rem;
  padding: 0.9rem;
}

.source-panel,
.controls-panel,
.result-panel {
  min-height: 0;
}

.result-panel {
  position: relative;
}

.controls-panel,
.result-panel {
  overflow: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(82, 72, 60, 0.26) transparent;
}

.controls-panel::-webkit-scrollbar,
.result-panel::-webkit-scrollbar {
  width: 8px;
}

.controls-panel::-webkit-scrollbar-track,
.result-panel::-webkit-scrollbar-track {
  background: transparent;
}

.controls-panel::-webkit-scrollbar-thumb,
.result-panel::-webkit-scrollbar-thumb {
  border-radius: 999px;
  background: rgba(82, 72, 60, 0.26);
}

.controls-panel::-webkit-scrollbar-thumb:hover,
.result-panel::-webkit-scrollbar-thumb:hover {
  background: rgba(82, 72, 60, 0.38);
}

.source-panel {
  align-content: start;
  overflow: hidden;
}

.section-head {
  display: grid;
  gap: 0.18rem;
}

.section-kicker,
.meta-grid dt,
.result-stat-label {
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-size: 0.7rem;
  color: var(--muted);
}

.section-head h2,
.option-section-head h3 {
  margin: 0;
  font-family: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  font-weight: 600;
  letter-spacing: -0.03em;
  line-height: 1;
}

.section-head h2 {
  font-size: 1.35rem;
}

.inline-note,
.placeholder,
.status-line,
.option-section-head p,
.dropzone-copy {
  margin: 0;
  color: var(--muted);
  line-height: 1.5;
}

.dropzone {
  display: grid;
  gap: 0.4rem;
  padding: 1rem;
  border-radius: calc(var(--radius) - 8px);
  border: 1px dashed rgba(82, 72, 60, 0.22);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.46), transparent 58%),
    var(--paper-strong);
  cursor: pointer;
  transition: border-color 180ms ease, transform 180ms ease, background 180ms ease;
}

.dropzone:hover,
.dropzone.dragover,
.dropzone:focus-within {
  border-color: var(--accent);
  background:
    linear-gradient(135deg, rgba(53, 95, 87, 0.12), transparent 58%),
    var(--paper-strong);
  transform: translateY(-1px);
}

.dropzone-preview {
  min-width: 0;
  padding: 0.7rem;
  gap: 0.6rem;
}

.dropzone input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.dropzone-title {
  font-size: 1rem;
  font-weight: 700;
}

.preview-block {
  min-height: 0;
  display: grid;
  gap: 0.55rem;
  grid-template-rows: minmax(0, 1fr) auto;
  align-content: start;
}

.preview-frame {
  min-height: 0;
  min-width: 0;
  width: 100%;
  height: clamp(150px, 28vh, 250px);
  display: grid;
  place-items: center;
  overflow: hidden;
  padding: 0.7rem;
  border-radius: calc(var(--radius) - 8px);
  border: 1px solid rgba(82, 72, 60, 0.08);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.34), transparent 60%),
    rgba(245, 240, 233, 0.98);
}

.preview-frame-input {
  height: clamp(160px, 24vh, 220px);
}

.result-panel .preview-frame {
  height: clamp(140px, 24vh, 220px);
}

.preview-frame img {
  width: 100%;
  height: 100%;
  min-width: 0;
  min-height: 0;
  border-radius: 12px;
  object-fit: contain;
  object-position: center;
}

.placeholder {
  max-width: 28ch;
  text-align: center;
}

.meta-grid {
  margin: 0;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.5rem;
}

.meta-grid div,
.result-stat {
  border: 1px solid rgba(82, 72, 60, 0.09);
  border-radius: var(--radius-tight);
  background: var(--paper-muted);
}

.meta-grid div {
  padding: 0.72rem 0.8rem;
}

.meta-grid dt {
  margin-bottom: 0.25rem;
}

.meta-grid dd {
  margin: 0;
  font-size: 0.96rem;
}

.control-stack {
  display: grid;
  gap: 0.7rem;
}

.option-section {
  display: grid;
  gap: 0.7rem;
  padding: 0.8rem;
  border-radius: calc(var(--radius) - 8px);
  background: rgba(255, 255, 255, 0.34);
  border: 1px solid rgba(82, 72, 60, 0.08);
}

.option-section-head {
  display: grid;
  gap: 0.18rem;
}

.option-section-head h3 {
  font-size: 1.18rem;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem;
}

.form-grid label {
  display: grid;
  gap: 0.35rem;
}

.form-grid label > span {
  font-size: 0.84rem;
  color: var(--muted);
}

.form-grid input[type="text"],
.form-grid input[type="number"],
.form-grid select {
  width: 100%;
  min-height: 40px;
  padding: 0.62rem 0.75rem;
  border: 1px solid rgba(82, 72, 60, 0.16);
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--ink);
}

.form-grid input:focus,
.form-grid select:focus,
.action-button:focus,
.download-link:focus,
.watermark-clear-button:focus {
  outline: 2px solid rgba(53, 95, 87, 0.28);
  outline-offset: 2px;
}

.checkbox {
  grid-column: 1 / -1;
  display: flex;
  align-items: center;
  gap: 0.55rem;
  padding: 0.2rem 0;
}

.checkbox input {
  width: 18px;
  height: 18px;
  accent-color: var(--accent);
}

.quality-field,
.blur-field,
.sharpen-field {
  grid-column: 1 / -1;
}

.quality-pair {
  display: grid;
  grid-template-columns: 1fr 88px;
  gap: 0.6rem;
  align-items: center;
}

.quality-pair input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

.advanced-details,
.watermark-details {
  border: 1px solid rgba(82, 72, 60, 0.08);
  border-radius: calc(var(--radius) - 8px);
  background: rgba(255, 255, 255, 0.34);
}

.advanced-details summary,
.watermark-summary {
  cursor: pointer;
  padding: 0.75rem 0.85rem;
  font-weight: 700;
}

.advanced-body,
.watermark-controls {
  display: grid;
  gap: 0.7rem;
  padding: 0 0.85rem 0.85rem;
}

.watermark-dropzone {
  padding: 0.85rem;
}

.watermark-preview-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.65rem;
}

.watermark-preview-img {
  max-width: 120px;
  max-height: 64px;
  border-radius: 8px;
  border: 1px solid var(--line);
  object-fit: contain;
}

.watermark-clear-button {
  padding: 0.4rem 0.75rem;
  border: 1px solid rgba(82, 72, 60, 0.16);
  border-radius: 10px;
  background: rgba(255, 255, 255, 0.58);
  color: var(--danger);
  cursor: pointer;
  font-weight: 700;
}

.watermark-clear-button:hover {
  border-color: var(--danger);
}

.action-row,
.download-row {
  display: grid;
  gap: 0.6rem;
}

.action-button,
.download-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 42px;
  padding: 0.7rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(82, 72, 60, 0.16);
  text-decoration: none;
  font-weight: 700;
  transition: transform 180ms ease, background 180ms ease, border-color 180ms ease;
}

.action-button {
  background: linear-gradient(135deg, var(--accent), var(--accent-strong));
  color: #f5efe4;
  cursor: pointer;
}

.download-link {
  background: rgba(255, 255, 255, 0.56);
  color: var(--ink);
}

.action-button:hover,
.download-link:hover:not(.disabled) {
  transform: translateY(-1px);
  border-color: rgba(82, 72, 60, 0.28);
}

.download-link.disabled {
  pointer-events: none;
  opacity: 0.55;
}

.result-summary {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 0.5rem;
}

.result-stat {
  display: grid;
  gap: 0.25rem;
  padding: 0.72rem 0.8rem;
}

.result-stat-value {
  font-size: 1.25rem;
  line-height: 1;
}

.result-stat-value[data-trend="down"] {
  color: var(--success);
}

.result-stat-value[data-trend="up"] {
  color: var(--accent-warm);
}

.comparison-grid {
  margin: 0;
  display: grid;
  gap: 0.5rem;
  position: relative;
  z-index: 1;
}

.comparison-grid div {
  display: grid;
  gap: 0.24rem;
  padding: 0.68rem 0.8rem;
  border: 1px solid rgba(82, 72, 60, 0.09);
  border-radius: var(--radius-tight);
  background: var(--paper-muted);
}

.comparison-grid dd {
  margin: 0;
  display: flex;
  align-items: center;
  gap: 0.45rem;
  min-width: 0;
  font-size: 0.94rem;
}

.comparison-grid dd span {
  min-width: 0;
}

.comparison-grid dd span:not(.comparison-arrow) {
  flex: 1 1 0;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.comparison-arrow {
  flex: 0 0 auto;
  color: var(--muted);
}

.status-stack {
  display: grid;
  gap: 0.55rem;
}

.warning-list,
.error-box {
  margin: 0;
  padding: 0.75rem 0.9rem;
  border-radius: var(--radius-tight);
  border: 1px solid rgba(159, 98, 70, 0.16);
  background: rgba(159, 98, 70, 0.08);
}

.warning-list {
  padding-left: 1.45rem;
}

.error-box {
  color: var(--danger);
  border-color: rgba(139, 74, 60, 0.18);
  background: rgba(139, 74, 60, 0.08);
}

.is-unavailable {
  color: var(--accent-warm);
}

.is-busy button,
.is-busy input,
.is-busy select,
.is-busy .dropzone,
.is-busy .download-link {
  opacity: 0.55;
  pointer-events: none;
}

@media (max-height: 780px) {
  .stack {
    gap: 0.6rem;
    padding: 0.8rem;
  }

  .preview-frame {
    height: clamp(130px, 24vh, 210px);
  }

  .preview-frame-input {
    height: clamp(140px, 20vh, 180px);
  }

  .meta-grid div,
  .result-stat {
    padding: 0.65rem 0.75rem;
  }
}

@media (max-width: 1120px) {
  .page-shell {
    height: auto;
    min-height: 100dvh;
  }

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

  .editor-column {
    grid-template-rows: auto auto;
  }

  .controls-panel,
  .result-panel {
    overflow: visible;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100% - 0.75rem, 100%);
    padding-top: 0.5rem;
  }

  .topbar {
    flex-direction: column;
    align-items: stretch;
    border-radius: 24px;
  }

  .topbar-nav {
    justify-content: space-between;
  }

  .layout,
  .form-grid,
  .meta-grid,
  .result-summary {
    grid-template-columns: 1fr;
  }

  .preview-frame {
    height: 180px;
  }

  .action-button,
  .download-link {
    width: 100%;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
    scroll-behavior: auto !important;
  }
}