:root {
  color-scheme: light;
  --ink: #17212b;
  --muted: #66727e;
  --soft-muted: #98a4af;
  --line: #dce4e9;
  --surface: #ffffff;
  --canvas: #f3f7f8;
  --navy: #19364b;
  --navy-dark: #102839;
  --teal: #168a82;
  --teal-soft: #e7f6f3;
  --orange: #d56c4e;
  --orange-soft: #fff0ea;
  --danger: #bd403c;
  --danger-soft: #fff1f0;
  --shadow: 0 18px 44px rgba(24, 54, 75, 0.09);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--canvas);
}

body {
  margin: 0;
  color: var(--ink);
  background:
    radial-gradient(circle at 92% 0%, rgba(22, 138, 130, 0.12), transparent 28rem),
    var(--canvas);
  font-family:
    Inter, "Noto Sans SC", "Microsoft YaHei", "PingFang SC", system-ui, sans-serif;
  line-height: 1.5;
}

button,
input,
select {
  font: inherit;
}

button,
select {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
select:focus-visible,
.drop-zone:focus-visible,
#command-preview:focus-visible {
  outline: 3px solid rgba(22, 138, 130, 0.3);
  outline-offset: 2px;
}

code,
pre {
  font-family: "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

.page-shell {
  width: min(1420px, calc(100% - 36px));
  margin: 0 auto;
  padding: 42px 0 34px;
}

.hero {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 32px;
  margin-bottom: 24px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 8px;
  color: var(--teal);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.16em;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 13px;
  color: var(--navy-dark);
  font-size: clamp(2.2rem, 5vw, 4.3rem);
  letter-spacing: -0.055em;
  line-height: 1.02;
}

h2 {
  margin-bottom: 0;
  color: var(--navy-dark);
  font-size: 1.35rem;
  letter-spacing: -0.025em;
}

h3 {
  margin-bottom: 0;
  color: var(--navy-dark);
  font-size: 1.05rem;
}

.hero-copy {
  max-width: 740px;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1rem;
}

.hero-badge {
  display: flex;
  align-items: center;
  flex: 0 0 auto;
  gap: 11px;
  padding: 13px 17px 13px 13px;
  color: var(--navy);
  background: rgba(255, 255, 255, 0.72);
  border: 1px solid rgba(22, 138, 130, 0.2);
  border-radius: 16px;
  box-shadow: 0 10px 28px rgba(24, 54, 75, 0.06);
  font-size: 0.78rem;
  line-height: 1.25;
}

.hero-badge strong {
  color: var(--teal);
}

.hero-badge-mark {
  display: grid;
  width: 38px;
  height: 38px;
  place-items: center;
  color: #ffffff;
  background: var(--navy);
  border-radius: 11px;
  font-size: 1.3rem;
}

.notice {
  margin: 0 0 18px;
  padding: 11px 15px;
  color: #4d3b1a;
  background: #fff8e8;
  border: 1px solid #eed391;
  border-radius: 10px;
  font-size: 0.88rem;
}

.builder-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.12fr) minmax(380px, 0.88fr);
  align-items: start;
  gap: 22px;
}

.panel {
  min-width: 0;
  background: var(--surface);
  border: 1px solid rgba(220, 228, 233, 0.95);
  border-radius: 18px;
  box-shadow: var(--shadow);
}

.settings-panel {
  padding: 25px 26px 8px;
}

.result-panel {
  position: sticky;
  top: 20px;
  padding: 25px 26px;
}

.panel-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 22px;
}

.panel-note,
.shell-pill {
  display: inline-flex;
  align-items: center;
  min-height: 26px;
  padding: 4px 9px;
  color: var(--teal);
  background: var(--teal-soft);
  border-radius: 999px;
  font-size: 0.72rem;
  font-weight: 700;
}

.setting-group {
  padding: 4px 0 25px;
  border-bottom: 1px solid var(--line);
}

.setting-group + .setting-group {
  padding-top: 25px;
}

.setting-group:last-child {
  border-bottom: 0;
}

.group-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 17px;
}

.group-index {
  display: inline-block;
  min-width: 28px;
  margin: 0 7px 0 0;
  color: var(--orange);
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  vertical-align: middle;
}

.group-heading h3 {
  display: inline;
}

.group-description {
  max-width: 230px;
  color: var(--soft-muted);
  font-size: 0.73rem;
  text-align: right;
}

.drop-zone {
  position: relative;
  display: flex;
  min-height: 150px;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 21px;
  color: var(--muted);
  background:
    linear-gradient(135deg, rgba(231, 246, 243, 0.7), rgba(255, 255, 255, 0.86)),
    var(--surface);
  border: 1px dashed #9accc5;
  border-radius: 13px;
  text-align: center;
  transition:
    border-color 140ms ease,
    background 140ms ease,
    transform 140ms ease;
}

.drop-zone:hover,
.drop-zone.is-active {
  background: var(--teal-soft);
  border-color: var(--teal);
}

.drop-zone.is-active {
  transform: translateY(-2px);
}

.drop-zone strong {
  color: var(--navy);
  font-size: 0.93rem;
}

.drop-help {
  color: var(--soft-muted);
  font-size: 0.76rem;
}

.drop-icon {
  display: grid;
  width: 34px;
  height: 34px;
  place-items: center;
  margin-bottom: 4px;
  color: var(--teal);
  background: #ffffff;
  border: 1px solid #c2e1dc;
  border-radius: 50%;
  font-size: 1.25rem;
  font-weight: 800;
}

.file-details {
  display: flex;
  max-width: 100%;
  flex-direction: column;
  gap: 1px;
  margin-top: 8px;
  color: var(--navy);
  overflow: hidden;
}

.file-details strong {
  max-width: 100%;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-details span {
  color: var(--muted);
  font-size: 0.75rem;
}

.text-button {
  padding: 0;
  color: var(--orange);
  background: transparent;
  border: 0;
  font-size: 0.76rem;
}

.text-button:hover {
  text-decoration: underline;
}

.field,
.check-field {
  margin-top: 14px;
}

.field label,
.check-field {
  color: var(--navy);
  font-size: 0.8rem;
  font-weight: 700;
}

.field label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  margin-bottom: 6px;
}

.label-note {
  color: var(--soft-muted);
  font-size: 0.7rem;
  font-weight: 500;
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  min-height: 39px;
  padding: 8px 10px;
  color: var(--ink);
  background: #ffffff;
  border: 1px solid var(--line);
  border-radius: 8px;
  outline: 0;
  transition:
    border-color 140ms ease,
    box-shadow 140ms ease,
    background 140ms ease;
}

input[type="text"]:hover,
input[type="number"]:hover,
select:hover {
  border-color: #a7b9c2;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(22, 138, 130, 0.1);
}

input[readonly],
input:disabled,
select:disabled {
  color: var(--soft-muted);
  background: #f6f8f9;
  cursor: not-allowed;
}

.hint {
  margin: 6px 0 0;
  color: var(--soft-muted);
  font-size: 0.72rem;
}

.hint code {
  color: var(--muted);
}

.field-grid {
  display: grid;
  gap: 12px;
}

.two-columns {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.crop-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 10px;
  padding: 12px;
  background: #f7fafb;
  border: 1px solid #e8eef0;
  border-radius: 10px;
}

.conditional[hidden],
[hidden] {
  display: none !important;
}

.check-field {
  display: flex;
  align-items: center;
  gap: 8px;
  width: fit-content;
  color: var(--ink);
  cursor: pointer;
}

.check-field input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: var(--teal);
}

.align-end {
  align-self: end;
  min-height: 39px;
  margin-top: 0;
}

.field-error {
  min-height: 0;
  margin: 5px 0 0;
  color: var(--danger);
  font-size: 0.73rem;
}

.warning-text {
  margin: 6px 0 0;
  color: var(--orange);
  font-size: 0.73rem;
}

.validation-banner {
  margin-bottom: 16px;
  padding: 12px 14px;
  color: var(--danger);
  background: var(--danger-soft);
  border: 1px solid #f2c4c1;
  border-radius: 10px;
  font-size: 0.8rem;
}

.validation-banner strong {
  font-size: 0.82rem;
}

.validation-banner ul {
  margin: 6px 0 0;
  padding-left: 18px;
}

.output-card,
.summary-card,
.privacy-card {
  padding: 13px 14px;
  background: #f7fafb;
  border: 1px solid #e8eef0;
  border-radius: 10px;
}

.output-card + .output-card {
  margin-top: 9px;
}

.result-label,
.command-language {
  display: block;
  color: var(--soft-muted);
  font-size: 0.7rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.output-card code {
  display: block;
  margin-top: 5px;
  color: var(--navy);
  overflow-wrap: anywhere;
  font-size: 0.82rem;
}

.command-card {
  margin-top: 17px;
  padding: 15px;
  background: var(--navy-dark);
  border-radius: 12px;
  box-shadow: 0 12px 25px rgba(16, 40, 57, 0.15);
}

.command-card-heading {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
}

.command-card .result-label {
  color: #9eb4c2;
}

.command-language {
  color: #6e8a9b;
  font-size: 0.64rem;
}

#command-preview {
  min-height: 146px;
  margin: 14px 0 16px;
  padding: 0;
  color: #e6f5f2;
  background: transparent;
  border: 0;
  outline: 0;
  overflow: auto;
  white-space: pre-wrap;
  overflow-wrap: anywhere;
  font-size: 0.82rem;
  line-height: 1.7;
}

.command-actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 8px;
}

.primary-button,
.secondary-button {
  min-height: 37px;
  padding: 7px 13px;
  border-radius: 8px;
  font-size: 0.78rem;
  font-weight: 800;
  transition:
    transform 140ms ease,
    opacity 140ms ease,
    background 140ms ease;
}

.primary-button {
  color: #ffffff;
  background: var(--teal);
  border: 1px solid var(--teal);
}

.secondary-button {
  color: #d5e4ea;
  background: transparent;
  border: 1px solid #557183;
}

.primary-button:not(:disabled):hover,
.secondary-button:not(:disabled):hover {
  transform: translateY(-1px);
}

.secondary-button:not(:disabled):hover {
  background: rgba(255, 255, 255, 0.08);
}

button:disabled {
  cursor: not-allowed;
  opacity: 0.42;
}

.copy-status {
  min-height: 18px;
  margin-left: auto;
  color: #8fe2d6;
  font-size: 0.75rem;
}

.summary-card {
  margin-top: 17px;
  background: #ffffff;
}

.summary-list {
  display: grid;
  gap: 6px;
  margin: 12px 0 0;
  padding: 0;
  color: var(--muted);
  font-size: 0.78rem;
  list-style: none;
}

.summary-list li {
  display: flex;
  gap: 7px;
}

.summary-list li::before {
  content: "•";
  color: var(--teal);
  font-weight: 900;
}

.privacy-card {
  margin-top: 17px;
  color: var(--muted);
  background: var(--teal-soft);
  border-color: #c6e6e1;
  font-size: 0.76rem;
}

.privacy-card strong {
  color: var(--teal);
}

.privacy-card p {
  margin: 5px 0 0;
}

.footer-note {
  padding: 20px 0 0;
  color: var(--soft-muted);
  font-size: 0.72rem;
  text-align: center;
}

.noscript-message {
  position: fixed;
  inset: 15px;
  z-index: 10;
  padding: 20px;
  color: var(--danger);
  background: #ffffff;
  border: 1px solid #f2c4c1;
  border-radius: 10px;
  box-shadow: var(--shadow);
}

@media (max-width: 980px) {
  .builder-layout {
    grid-template-columns: 1fr;
  }

  .result-panel {
    position: static;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 24px, 560px);
    padding-top: 25px;
  }

  .hero {
    align-items: flex-start;
    flex-direction: column;
    gap: 18px;
  }

  .hero-badge {
    align-self: stretch;
  }

  .settings-panel,
  .result-panel {
    padding: 20px 17px 7px;
  }

  .result-panel {
    padding-bottom: 20px;
  }

  .group-heading {
    flex-direction: column;
    gap: 4px;
  }

  .group-description {
    max-width: none;
    text-align: left;
  }

  .two-columns,
  .crop-grid {
    grid-template-columns: 1fr 1fr;
  }

  .copy-status {
    width: 100%;
    margin-left: 0;
  }
}