:root {
  --bg: #f3f5f8;
  --surface: #ffffff;
  --surface-alt: #f8fafc;
  --surface-soft: #eef2f7;
  --surface-panel: rgba(255, 255, 255, 0.88);
  --surface-glass: rgba(247, 249, 252, 0.92);
  --line: #d7dee9;
  --line-strong: #b7c4d6;
  --ink: #132238;
  --ink-soft: #51647d;
  --ink-faint: #7c8ba0;
  --text: var(--ink);
  --text-muted: var(--ink-faint);
  --bg-subtle: var(--surface-alt);
  --bg-card: var(--surface);
  --accent: #1f5eff;
  --accent-soft: rgba(31, 94, 255, 0.1);
  --accent-strong: #0f3fb8;
  --success: #177245;
  --success-soft: rgba(23, 114, 69, 0.1);
  --danger: #bf3b3b;
  --danger-soft: rgba(191, 59, 59, 0.08);
  --shadow: 0 18px 45px rgba(15, 34, 56, 0.08);
  --shadow-soft: 0 10px 24px rgba(15, 34, 56, 0.05);
  --body-gradient: linear-gradient(180deg, #f7f9fc 0%, #eef2f7 100%);
  --header-bg: rgba(247, 249, 252, 0.9);
  --tabs-bg: rgba(247, 249, 252, 0.96);
  --overlay-bg: rgba(14, 23, 38, 0.44);
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --workspace-gutter: 28px;
  --workspace-top: 20px;
  --workspace-bottom: 40px;
  --workspace-gap: 20px;
  --panel-padding: 20px;
  --panel-padding-compact: 16px;
  --control-height: 40px;
  --action-gap: 8px;
  --transition: 180ms ease;
}

:root[data-theme="dark"] {
  color-scheme: dark;
  --bg: #080808;
  --surface: #121212;
  --surface-alt: #181818;
  --surface-soft: #242424;
  --surface-panel: rgba(18, 18, 18, 0.94);
  --surface-glass: rgba(10, 10, 10, 0.9);
  --line: #2b2b2b;
  --line-strong: #3f3f3f;
  --ink: #f1f1f1;
  --ink-soft: #c7c7c7;
  --ink-faint: #8f8f8f;
  --text: var(--ink);
  --text-muted: var(--ink-faint);
  --bg-subtle: var(--surface-alt);
  --bg-card: var(--surface);
  --accent: #d9d9d9;
  --accent-soft: rgba(255, 255, 255, 0.1);
  --accent-strong: #ffffff;
  --success: #64d28f;
  --success-soft: rgba(100, 210, 143, 0.12);
  --danger: #ff7a7a;
  --danger-soft: rgba(255, 122, 122, 0.12);
  --shadow: 0 20px 54px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 12px 28px rgba(0, 0, 0, 0.25);
  --body-gradient: #050505;
  --header-bg: rgba(8, 8, 8, 0.9);
  --tabs-bg: rgba(9, 9, 9, 0.96);
  --overlay-bg: rgba(0, 0, 0, 0.62);
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

/* 스크린 리더 전용 — 시각적으로는 숨기되 접근성은 유지 */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

html {
  scroll-behavior: smooth;
  /* 스크롤바 등장/사라짐으로 뷰포트 폭이 바뀌어 그리드 컬럼 수가
     갑자기 변하는 현상(리플로우)을 막기 위해 스크롤바 거터를 항상 예약한다. */
  scrollbar-gutter: stable;
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--body-gradient);
  color: var(--ink);
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  overflow-x: hidden;
}

button,
input,
textarea {
  font: inherit;
}

button {
  border: 0;
  background: none;
}

/* ?€?€ Tab navigation ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.app-tabs-bar {
  position: sticky;
  top: 83px;
  z-index: 19;
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 0;
  padding: 0 28px;
  min-height: 44px;
  background: var(--tabs-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  overflow: hidden;
}

.app-tabs {
  min-width: 0;
  display: flex;
  flex: 1 1 auto;
  align-items: center;
  align-self: stretch;
  gap: 10px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.static-mode-notice {
  padding: 7px 16px;
  background: #eef6ff;
  border-bottom: 1px solid #c9ddf5;
  color: #244b78;
  font-size: 12px;
  line-height: 1.45;
  text-align: center;
}

.app-tabs::-webkit-scrollbar {
  display: none;
}

.app-tab-group-switcher { display: none; }

/* 탭 전체가 한 줄에 들어가지 않는 데스크톱에서도 모든 작업군에 접근할 수 있게 한다. */
@media (min-width: 721px) and (max-width: 1680px) {
  .app-tab-group-switcher {
    display: flex;
    flex: 0 0 auto;
    align-items: center;
    gap: 4px;
    padding-right: 10px;
    border-right: 1px solid var(--line);
  }

  .app-tab-group-switcher button {
    min-height: 32px;
    padding: 0 9px;
    border: 1px solid transparent;
    border-radius: 9px;
    background: transparent;
    color: var(--ink-soft);
    font: inherit;
    font-size: 11px;
    font-weight: 800;
    white-space: nowrap;
    cursor: pointer;
  }

  .app-tab-group-switcher button:hover {
    background: var(--surface-soft);
    color: var(--ink);
  }

  .app-tab-group-switcher button.active {
    border-color: color-mix(in srgb, var(--accent) 20%, transparent);
    background: color-mix(in srgb, var(--accent) 9%, transparent);
    color: var(--accent);
  }
}

.app-tab-group {
  display: flex;
  flex: 0 0 auto;
  align-items: center;
  gap: 4px;
  min-width: 0;
  padding-right: 10px;
  border-right: 1px solid var(--line);
}

.app-tab-group:last-child {
  padding-right: 0;
  border-right: 0;
}

.app-tab-group-label {
  flex: 0 0 auto;
  padding: 4px 7px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 800;
  white-space: nowrap;
}

.app-tab-group.legacy .app-tab-group-label {
  background: var(--surface-alt);
  color: var(--ink-faint);
}

.app-tab-group-buttons {
  display: flex;
  align-items: center;
  gap: 2px;
  min-width: 0;
}

.app-tab-btn {
  position: relative;
  padding: 14px 12px;
  font-size: 13px;
  font-weight: 700;
  color: var(--ink-faint);
  background: none;
  border: 0;
  cursor: pointer;
  transition: color var(--transition);
  white-space: nowrap;
}

.app-tab-btn::after {
  content: "";
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  height: 2px;
  border-radius: 2px 2px 0 0;
  background: var(--accent);
  opacity: 0;
  transition: opacity var(--transition);
}

.app-tab-btn.active {
  color: var(--accent);
}

.app-tab-btn.legacy:not(.active) {
  color: var(--ink-faint);
  font-weight: 600;
}

.app-tab-btn.active::after {
  opacity: 1;
}

.app-tab-btn:hover {
  color: var(--ink);
}

.app-tab-btn:focus-visible,
.app-tab-group-switch:focus-visible {
  outline: 3px solid color-mix(in srgb, var(--accent) 20%, transparent);
  outline-offset: 2px;
}

@media (min-width: 721px) and (max-width: 1399px) {
  .app-tab-group {
    display: none;
  }

  .app-tabs[data-active-group="deck"] .app-tab-group[data-tab-group="deck"],
  .app-tabs[data-active-group="visual"] .app-tab-group[data-tab-group="visual"],
  .app-tabs[data-active-group="special"] .app-tab-group[data-tab-group="special"] {
    display: flex;
  }

  .app-tab-group-label {
    display: none;
  }
}

.tab-pane {
  display: none;
}

.tab-pane.active {
  display: block;
}

.legacy-tool-notice {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin: var(--workspace-top) var(--workspace-gutter) 0;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: var(--radius-md);
  background: var(--surface-alt);
  box-shadow: var(--shadow-soft);
}

.legacy-tool-notice > div {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  align-items: center;
  gap: 4px 9px;
  min-width: 0;
}

.legacy-tool-notice span {
  grid-row: 1 / span 2;
  padding: 5px 8px;
  border-radius: 999px;
  background: var(--surface-soft);
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 800;
}

.legacy-tool-notice strong { font-size: 14px; line-height: 1.4; }
.legacy-tool-notice p { margin: 0; color: var(--ink-soft); font-size: 12px; line-height: 1.45; }
.legacy-tool-notice .btn { flex: 0 0 auto; }

/* ?€?€ App header ?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€?€ */
.app-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 18px 28px;
  background: var(--header-bg);
  backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  overflow-x: auto;
  scrollbar-width: thin;
}

.brand-block {
  display: flex;
  align-items: center;
  gap: 14px;
  min-width: 0;
}

.brand-mark {
  width: 46px;
  height: 46px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 16px;
  background: linear-gradient(135deg, #1f5eff 0%, #0f3fb8 100%);
  color: #fff;
  font-size: 15px;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 12px 24px rgba(31, 94, 255, 0.18);
}

.brand-copy {
  min-width: 0;
}

.brand-title {
  margin: 0;
  font-size: 20px;
  font-weight: 800;
  letter-spacing: -0.03em;
}

.brand-subtitle {
  margin: 4px 0 0;
  font-size: 13px;
  line-height: 1.5;
  color: var(--ink-soft);
}

.workspace-state {
  display: grid;
  gap: 3px;
  min-width: 190px;
  max-width: 280px;
  margin-left: auto;
  padding: 8px 11px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface-alt);
}

.workspace-state-current {
  display: flex;
  align-items: center;
  gap: 7px;
  min-width: 0;
}

.workspace-state-current b {
  flex: 0 0 auto;
  color: var(--accent);
  font-size: 12px;
  font-weight: 800;
}

.workspace-state-current strong {
  overflow: hidden;
  color: var(--ink);
  font-size: 13px;
  font-weight: 750;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.workspace-state-save {
  color: var(--success);
  font-size: 12px;
  font-weight: 650;
}

.workspace-state-save.is-error { color: var(--danger); }
.workspace-state + .header-user-bar { margin-left: 0; }

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

.app-tabs-bar .header-actions {
  flex: 0 0 auto;
  justify-content: flex-end;
  flex-wrap: nowrap;
  max-width: min(760px, 48vw);
  min-height: 43px;
  overflow-x: auto;
  overflow-y: hidden;
  padding: 0;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.app-tabs-bar .header-actions::-webkit-scrollbar {
  display: none;
}

.app-tabs-bar .header-actions .btn {
  flex: 0 0 auto;
  min-height: 32px;
  padding: 0 12px;
  font-size: 12px;
  white-space: nowrap;
}

/* ── 탭별 우측 패널 액션 도크 ─────────────────────────────── */
.tab-action-dock {
  position: relative;
  z-index: 1;
  display: flex;
  width: 100%;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: none;
}

.tab-action-dock[hidden] {
  display: none !important;
}

.tab-action-direct {
  display: flex;
  min-width: 0;
  align-items: center;
  justify-content: flex-end;
  gap: 8px;
  overflow-x: auto;
  overflow-y: hidden;
  scrollbar-width: none;
}

.tab-action-direct::-webkit-scrollbar {
  display: none;
}

.tab-action-dock .btn {
  flex: 0 0 auto;
  min-height: 34px;
  padding: 0 12px;
  font-size: 12px;
  white-space: nowrap;
}

.tab-action-more {
  position: relative;
  flex: 0 0 auto;
}

.tab-action-more > summary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 34px;
  cursor: pointer;
  list-style: none;
}

.tab-action-more > summary::-webkit-details-marker {
  display: none;
}

.tab-action-more > summary::after {
  content: "";
  width: 6px;
  height: 6px;
  margin-left: 7px;
  border-right: 1.5px solid currentColor;
  border-bottom: 1.5px solid currentColor;
  transform: rotate(45deg) translateY(-2px);
}

.tab-action-more[open] > summary::after {
  transform: rotate(225deg) translate(-1px, -1px);
}

.tab-action-more-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 40;
  display: grid;
  min-width: 190px;
  gap: 6px;
  padding: 8px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: var(--surface);
  box-shadow: 0 18px 42px rgba(15, 23, 42, 0.18);
}

.tab-action-more-menu .btn {
  width: 100%;
  justify-content: flex-start;
}

@media (min-width: 961px) {
  .tab-action-host.tab-action-panel-sticky {
    position: static !important;
    top: auto !important;
    align-self: stretch;
    max-height: none;
    overflow: visible;
  }

  .promo-preview-section.tab-action-panel-sticky {
    height: auto !important;
  }
}

@media (max-width: 960px) {
  .tab-action-dock {
    position: static;
  }
}

/* ── 사용자 pill ─────────────────────────────────────────────── */
.header-user-bar {
  display: inline-flex;
  align-items: center;
  gap: 2px;
  padding: 3px 3px 3px 6px;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 40px;
  flex: 0 0 auto;
  margin-left: auto;
  transition: border-color var(--transition);
}
.header-user-bar:hover { border-color: var(--line-strong); }

.hub-avatar {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent) 0%, var(--accent-strong) 100%);
  color: #fff;
  font-size: 11px;
  font-weight: 800;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  text-transform: uppercase;
  letter-spacing: 0;
  margin-right: 2px;
}

.hub-name {
  font-size: 13px;
  font-weight: 700;
  color: var(--ink);
  white-space: nowrap;
  padding: 0 4px 0 2px;
}

.hub-sep {
  display: block;
  width: 1px;
  height: 18px;
  background: var(--line);
  flex-shrink: 0;
  margin: 0 2px;
}

.hub-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 28px;
  border-radius: 20px;
  border: none;
  background: transparent;
  color: var(--ink-soft);
  font-size: 12px;
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  text-decoration: none;
  transition: background var(--transition), color var(--transition);
  white-space: nowrap;
}

.hub-btn-icon {
  width: 28px;
  padding: 0;
  color: var(--ink-faint);
}
.hub-btn-icon:hover {
  background: var(--surface-soft);
  color: var(--ink);
}

.hub-btn-logout {
  gap: 5px;
  padding: 0 10px 0 8px;
  background: var(--surface-soft);
}
.hub-btn-logout:hover {
  background: var(--danger-soft);
  color: var(--danger);
}

.theme-toggle {
  width: 38px;
  height: 38px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface);
  color: var(--ink-soft);
  font-size: 16px;
  cursor: pointer;
  transition: var(--transition);
}

.theme-toggle:hover {
  transform: translateY(-1px);
  border-color: var(--accent);
  color: var(--accent-strong);
  background: var(--accent-soft);
}

.theme-toggle-icon {
  font-size: 16px;
  line-height: 1;
}

.theme-toggle-text { display: none; }

@media (max-width: 720px) {
  :root {
    --workspace-gutter: 14px;
    --workspace-top: 14px;
    --workspace-bottom: 28px;
    --workspace-gap: 14px;
    --panel-padding: 16px;
    --panel-padding-compact: 14px;
  }

  .app-header {
    align-items: flex-start;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 14px;
  }

  .brand-block {
    flex: 1 1 calc(100% - 92px);
  }

  .brand-mark {
    width: 40px;
    height: 40px;
    border-radius: 14px;
    font-size: 13px;
  }

  .brand-title {
    font-size: 18px;
  }

  .brand-subtitle {
    font-size: 12px;
  }

  .workspace-state {
    order: 3;
    width: 100%;
    max-width: none;
    margin-left: 0;
    padding: 9px 11px;
  }

  .workspace-state-current {
    grid-template-columns: auto minmax(0, 1fr);
  }

  .workspace-state-save {
    grid-column: 1 / -1;
    justify-self: start;
  }

  .theme-toggle {
    width: 36px;
    height: 36px;
    min-height: unset;
    padding: 0;
  }

  .header-actions {
    width: 100%;
    flex-wrap: nowrap;
    gap: 8px;
    overflow-x: auto;
    padding-bottom: 2px;
    scrollbar-width: thin;
  }

  .app-tabs-bar {
    top: 0;
    display: block;
    padding: 6px 10px;
  }

  .app-tab-group-switcher {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
    margin-bottom: 6px;
  }

  .app-tab-group-switcher button {
    min-width: 0;
    min-height: 34px;
    padding: 6px 4px;
    border: 1px solid transparent;
    border-radius: 9px;
    background: transparent;
    color: var(--ink-soft);
    font: inherit;
    font-size: 11px;
    font-weight: 800;
    cursor: pointer;
  }

  .app-tab-group-switcher button.active {
    border-color: rgba(31, 94, 255, 0.18);
    background: rgba(31, 94, 255, 0.08);
    color: var(--brand-strong);
  }

  .app-tabs-bar .header-actions {
    display: none;
  }

  .tab-action-dock {
    display: none !important;
  }

  .header-actions .btn {
    flex: 0 0 auto;
    min-height: 36px;
    padding: 0 12px;
    font-size: 12px;
  }

  .app-tabs {
    display: block;
    overflow-x: visible;
    padding: 0;
  }

  .app-tab-group {
    display: none;
  }

  .app-tabs[data-active-group="deck"] .app-tab-group[data-tab-group="deck"],
  .app-tabs[data-active-group="visual"] .app-tab-group[data-tab-group="visual"],
  .app-tabs[data-active-group="special"] .app-tab-group[data-tab-group="special"] {
    display: block;
  }

  .app-tab-group-label {
    display: none;
  }

  .app-tab-group-buttons {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 4px;
  }

  .app-tab-btn {
    width: 100%;
    min-width: 0;
    min-height: 38px;
    padding: 9px 6px;
    border-radius: 10px;
    text-align: center;
  }

  .legacy-tool-notice {
    align-items: stretch;
    flex-direction: column;
  }

  .legacy-tool-notice .btn {
    width: 100%;
  }
}

.btn {
  min-height: 40px;
  padding: 0 16px;
  border-radius: 12px;
  border: 1px solid transparent;
  cursor: pointer;
  transition: var(--transition);
  font-size: 13px;
  font-weight: 700;
}

.btn.primary {
  background: linear-gradient(135deg, #1f5eff 0%, #0f3fb8 100%);
  color: #fff;
  box-shadow: 0 12px 24px rgba(31, 94, 255, 0.18);
}

.btn.secondary {
  background: var(--surface);
  color: var(--ink);
  border-color: var(--line);
}

.btn.ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink-soft);
}

.btn:hover,
.lang-btn:hover,
.option-card:hover,
.page-type-card:hover,
.template-chip:hover {
  transform: translateY(-1px);
}

.btn:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  box-shadow: none;
}

.btn:disabled:hover {
  transform: none;
}

.btn:focus-visible,
.lang-btn:focus-visible,
.option-card:focus-visible,
.page-type-card:focus-visible,
.template-chip:focus-visible {
  outline: 3px solid rgba(31, 94, 255, 0.18);
  outline-offset: 2px;
}

:root[data-theme="dark"] img,
:root[data-theme="dark"] video,
:root[data-theme="dark"] canvas {
  color-scheme: light;
}