:root {
  color-scheme: light;
  --paper: #ffffff;
  --paper-muted: #f7f7f5;
  --ink: #111111;
  --ink-soft: #5e5e5e;
  --line: #171717;
  --line-muted: #d8d8d4;
  --accent: #111111;
  --accent-contrast: #ffffff;
  --shadow: 0 16px 36px rgba(17, 17, 17, 0.08);
  --shadow-hover: 0 20px 44px rgba(17, 17, 17, 0.14);
  --grid-columns: 2;
  --page-gutter: clamp(20px, 4vw, 64px);
  --content-width: 1440px;
  font-family:
    Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", "Microsoft YaHei",
    sans-serif;
  font-synthesis: none;
  letter-spacing: 0;
  background: var(--paper);
  color: var(--ink);
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #111111;
  --paper-muted: #1d1d1d;
  --ink: #f8f8f6;
  --ink-soft: #bababa;
  --line: #f1f1ed;
  --line-muted: #414141;
  --accent: #f8f8f6;
  --accent-contrast: #111111;
  --shadow: 0 16px 36px rgba(0, 0, 0, 0.26);
  --shadow-hover: 0 20px 44px rgba(0, 0, 0, 0.42);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  background: var(--paper);
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  transition:
    background-color 180ms ease,
    color 180ms ease;
}

button,
input,
textarea {
  font: inherit;
  letter-spacing: inherit;
}

button {
  cursor: pointer;
}

button:focus-visible,
input:focus-visible,
textarea:focus-visible,
a:focus-visible {
  outline: 3px solid #6a8cff;
  outline-offset: 3px;
}

.app-shell {
  width: min(100%, var(--content-width));
  min-height: 100vh;
  margin: 0 auto;
  padding: 0 var(--page-gutter);
  display: flex;
  flex-direction: column;
}

.site-header {
  min-height: 88px;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
  position: relative;
  align-items: center;
  gap: 24px;
  border-bottom: 1px solid var(--line-muted);
}

.brand-wordmark {
  color: var(--ink);
  font-family: Georgia, "Times New Roman", SimSun, serif;
  font-size: 28px;
  line-height: 32px;
  font-weight: 400;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-decoration: none;
}

.header-actions,
.auth-area {
  display: flex;
  align-items: center;
  gap: 10px;
}

.header-actions {
  justify-self: end;
}

.top-toolbar {
  min-width: 0;
  justify-content: center;
  align-items: center;
  gap: 12px;
}

.button,
.icon-button,
.segment-button,
.dialog__close {
  border: 1px solid transparent;
  background: transparent;
  color: var(--ink);
  transition:
    color 160ms ease,
    background-color 160ms ease,
    border-color 160ms ease,
    transform 160ms ease,
    box-shadow 160ms ease;
}

.button {
  min-height: 42px;
  padding: 0 16px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 650;
  white-space: nowrap;
}

.button:active,
.icon-button:active,
.segment-button:active,
.dialog__close:active {
  transform: translateY(1px);
}

.button--quiet {
  border-color: var(--line-muted);
  background: var(--paper);
}

.button--quiet:hover {
  border-color: var(--line);
  background: var(--paper-muted);
}

.button--primary {
  border-color: var(--accent);
  background: var(--accent);
  color: var(--accent-contrast);
}

.button--primary:hover {
  box-shadow: var(--shadow);
  transform: translateY(-1px);
}

.icon-button {
  width: 40px;
  height: 40px;
  padding: 0;
  border-color: var(--line-muted);
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  font-weight: 650;
  line-height: 1;
}

.auth-icon,
.theme-toggle {
  width: 42px;
  height: 42px;
  padding: 0;
}

.ui-icon {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.7;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.icon-button:hover {
  border-color: var(--line);
  background: var(--paper-muted);
}

.auth-icon span {
  display: block;
  font-size: 18px;
  line-height: 1;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--ink-soft);
  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0;
  line-height: 1.2;
}

h2,
p {
  margin-top: 0;
}

.toolbar {
  display: flex;
  align-items: center;
  justify-content: center;
}

.layout-picker {
  display: flex;
  align-items: center;
  gap: 8px;
}

.segmented-control {
  padding: 3px;
  display: inline-flex;
  gap: 2px;
  border: 1px solid var(--line-muted);
  border-radius: 999px;
  background: var(--paper-muted);
}

.segment-button {
  width: 31px;
  height: 30px;
  border-radius: 999px;
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
}

.segment-button:hover {
  color: var(--ink);
}

.segment-button[aria-pressed="true"] {
  background: var(--accent);
  color: var(--accent-contrast);
}

.add-button {
  min-height: 36px;
  padding: 0 13px;
  font-size: 13px;
}

.notice-region {
  min-height: 0;
  margin-bottom: 20px;
}

.notice {
  margin: 0;
  padding: 12px 14px;
  border: 1px solid var(--line-muted);
  border-radius: 8px;
  background: var(--paper-muted);
  color: var(--ink-soft);
  font-size: 13px;
  line-height: 1.5;
}

.notice--error {
  border-color: #c45252;
  color: #a02929;
}

:root[data-theme="dark"] .notice--error {
  color: #ffadad;
}

.script-grid {
  --grid-gap: clamp(14px, 1.8vw, 24px);
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: stretch;
  gap: var(--grid-gap);
  padding: 34px 0 40px;
}

.script-grid[data-layout="1"] {
  --grid-gap: 20px;
  max-width: 780px;
  margin-inline: auto;
}

.script-grid[data-layout="2"] {
  --grid-gap: clamp(18px, 2.2vw, 28px);
  max-width: 1120px;
  margin-inline: auto;
}

.script-grid[data-authenticated="false"] {
  --grid-gap: 20px;
  row-gap: 8px;
  padding-top: 22px;
  padding-bottom: 24px;
}

.script-card {
  flex: 0 0 100%;
  min-width: 0;
  min-height: 86px;
  padding: 20px 22px;
  border: 1.5px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  cursor: copy;
  transition:
    box-shadow 180ms ease,
    transform 180ms ease,
    background-color 180ms ease;
}

.script-grid[data-authenticated="true"] .script-card {
  min-height: 64px;
  padding: 14px 18px;
}

.script-grid[data-authenticated="false"] .script-card {
  min-height: 0;
  padding: 10px 12px;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.script-grid[data-authenticated="false"] .script-card:hover {
  box-shadow: none;
  background: var(--paper-muted);
  transform: none;
}

.script-grid[data-authenticated="false"] .script-card__topline {
  justify-content: center;
}

.script-grid[data-layout="2"] .script-card {
  flex-basis: calc((100% - var(--grid-gap)) / 2);
}

.script-grid[data-layout="3"] .script-card {
  flex-basis: calc((100% - var(--grid-gap) - var(--grid-gap)) / 3);
}

.script-grid[data-layout="4"] .script-card {
  flex-basis: calc((100% - var(--grid-gap) - var(--grid-gap) - var(--grid-gap)) / 4);
}

.script-card:hover {
  box-shadow: var(--shadow-hover);
  transform: translateY(-2px);
}

.script-card__topline {
  display: flex;
  align-items: center;
  gap: 12px;
}

.script-card__index {
  flex: 0 0 auto;
  color: var(--ink-soft);
  font-size: 14px;
  font-weight: 750;
  line-height: 1.4;
}

.script-card__title {
  min-width: 0;
  margin: 0;
  overflow-wrap: anywhere;
  color: var(--ink);
  font-size: 17px;
  font-weight: 700;
  line-height: 1.35;
}

.script-card__actions {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 5px;
}

.small-button {
  min-height: 30px;
  padding: 0 9px;
  border: 1px solid var(--line-muted);
  border-radius: 999px;
  background: var(--paper);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 650;
  white-space: nowrap;
}

.small-button:hover {
  border-color: var(--line);
  background: var(--paper-muted);
  color: var(--ink);
}

.small-button--danger:hover {
  border-color: #c45252;
  color: #a02929;
}

.empty-state {
  flex: 0 0 100%;
  min-height: 170px;
  padding: 28px 24px;
  border: 1px dashed var(--line-muted);
  border-radius: 8px;
  display: grid;
  place-items: center;
  text-align: center;
}

.empty-state__title {
  margin-bottom: 8px;
  font-size: 20px;
  font-weight: 700;
}

.empty-state__copy {
  max-width: 480px;
  margin: 0;
  color: var(--ink-soft);
  font-size: 14px;
  line-height: 1.6;
}

.loading-state {
  flex: 0 0 100%;
  color: var(--ink-soft);
  text-align: center;
  font-size: 14px;
}

.dialog {
  width: min(calc(100% - 32px), 480px);
  max-height: calc(100dvh - 32px);
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.24);
}

.dialog--wide {
  width: min(calc(100% - 32px), 620px);
}

.dialog::backdrop {
  background: rgba(17, 17, 17, 0.48);
  backdrop-filter: blur(3px);
}

.dialog__form {
  padding: 26px;
}

.dialog__header {
  margin-bottom: 26px;
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
}

.dialog h2 {
  margin: 0;
  font-size: 26px;
  line-height: 1.15;
}

.dialog__close {
  width: 34px;
  height: 34px;
  border-color: var(--line-muted);
  border-radius: 50%;
  font-size: 24px;
  font-weight: 300;
  line-height: 1;
}

.dialog__close:hover {
  border-color: var(--line);
  background: var(--paper-muted);
}

.field-stack {
  display: grid;
  gap: 18px;
}

.field {
  display: grid;
  gap: 8px;
}

.field__label {
  color: var(--ink-soft);
  font-size: 13px;
  font-weight: 700;
}

.field input,
.field textarea {
  width: 100%;
  border: 1px solid var(--line-muted);
  border-radius: 8px;
  outline: 0;
  background: var(--paper);
  color: var(--ink);
  padding: 12px 13px;
  transition:
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.field input {
  min-height: 45px;
}

.field textarea {
  min-height: 150px;
  resize: vertical;
  line-height: 1.55;
}

.field input:focus,
.field textarea:focus {
  border-color: var(--ink);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--ink) 14%, transparent);
}

.field input::placeholder,
.field textarea::placeholder {
  color: var(--ink-soft);
  opacity: 0.7;
}

.form-error {
  min-height: 20px;
  margin: 15px 0 0;
  color: #a02929;
  font-size: 13px;
  line-height: 1.5;
}

:root[data-theme="dark"] .form-error {
  color: #ffadad;
}

.dialog__actions {
  margin-top: 13px;
  display: flex;
  justify-content: flex-end;
  gap: 10px;
}

.toast-region {
  position: fixed;
  z-index: 10;
  right: max(18px, var(--page-gutter));
  bottom: 20px;
  width: min(360px, calc(100vw - 36px));
  display: grid;
  gap: 8px;
  pointer-events: none;
}

.toast {
  padding: 12px 14px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--accent);
  color: var(--accent-contrast);
  box-shadow: var(--shadow-hover);
  font-size: 13px;
  line-height: 1.45;
  animation: toast-in 180ms ease both;
}

.toast--error {
  border-color: #c45252;
  background: #a02929;
  color: #ffffff;
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 880px) {
  .site-header {
    grid-template-columns: minmax(0, 1fr) auto;
    padding: 14px 0 12px;
  }

  .top-toolbar {
    grid-column: 1 / -1;
    grid-row: 2;
    justify-self: center;
    width: 100%;
  }

  .script-grid[data-layout="3"],
  .script-grid[data-layout="4"] {
    --grid-columns: 2;
  }

  .script-grid[data-layout="3"] .script-card,
  .script-grid[data-layout="4"] .script-card {
    flex-basis: calc((100% - var(--grid-gap)) / 2);
  }
}

@media (max-width: 620px) {
  :root {
    --page-gutter: 18px;
  }

  .site-header {
    min-height: 74px;
  }

  .header-actions {
    gap: 7px;
  }

  .top-toolbar {
    gap: 8px;
    justify-content: center;
    overflow-x: auto;
    padding-inline: 4px;
  }

  .script-grid,
  .script-grid[data-layout="2"],
  .script-grid[data-layout="3"],
  .script-grid[data-layout="4"] {
    --grid-columns: 1;
    max-width: 780px;
  }

  .script-card {
    flex-basis: 100% !important;
    min-height: 60px;
    padding: 12px 14px;
  }

  .script-grid[data-authenticated="false"] {
    --grid-gap: 2px;
    row-gap: 2px;
    padding-top: 14px;
  }

  .script-grid[data-authenticated="false"] .script-card {
    padding: 8px 10px;
  }

  .dialog__form {
    padding: 22px 19px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
  }
}