:root {
  --paper: #fafafa; --paper-deep: #f3f3f3; --panel: #fff; --ink: #181818; --ink-muted: #666; --ink-soft: #858585;
  --line: #e7e7e7; --line-dark: #d9d9d9; --pine: #292929; --pine-dark: #171717; --mint: #f3f3f3; --mint-strong: #e7e7e7;
  --clay: #666; --clay-soft: #f3f3f3; --sand: #f3f3f3; --danger: #b42318; --danger-soft: #fff0ee; --white: #fff;
  --sans: 'Segoe UI Variable', 'PingFang SC', 'Microsoft YaHei', system-ui, sans-serif;
  --shadow: 0 6px 20px rgba(0, 0, 0, .045);
}
* { box-sizing: border-box; }
[hidden] { display: none !important; }
dialog:not([open]) { display: none; }
html { background: var(--paper); }
body { margin: 0; min-width: 320px; color: var(--ink); background: var(--paper); font-family: var(--sans); font-size: 14px; line-height: 1.55; }
button, input, textarea, select { font: inherit; }
button { cursor: pointer; }
button:disabled { cursor: not-allowed; opacity: .55; }
input, textarea, select { width: 100%; border: 1px solid var(--line-dark); border-radius: 10px; background: var(--white); color: var(--ink); padding: 11px 13px; outline: none; transition: border-color .2s, box-shadow .2s, background .2s; }
input:focus, textarea:focus, select:focus { border-color: var(--pine); box-shadow: 0 0 0 3px rgba(0, 0, 0, .08); }
:focus-visible { outline: 2px solid var(--pine); outline-offset: 4px; }
textarea { resize: vertical; }
label { display: flex; flex-direction: column; gap: 7px; color: var(--ink); font-weight: 600; font-size: 12px; letter-spacing: .02em; }
.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; }

.button { display: inline-flex; align-items: center; justify-content: center; gap: 8px; min-height: 42px; padding: 0 18px; border: 1px solid transparent; border-radius: 9px; font-weight: 700; letter-spacing: .01em; transition: transform .2s, background .2s, border-color .2s, color .2s; }
.button:hover:not(:disabled) { transform: translateY(-1px); }
.button-primary { background: var(--pine); color: var(--white); }
.button-primary:hover:not(:disabled) { background: var(--pine-dark); }
.button-secondary { background: var(--mint); border-color: var(--mint-strong); color: var(--pine-dark); }
.button-secondary:hover:not(:disabled) { background: var(--mint-strong); }
.button-ghost { background: transparent; border-color: var(--line-dark); color: var(--ink-muted); }
.button-ghost:hover:not(:disabled) { background: var(--paper-deep); }
.button-danger { background: var(--danger); color: white; }
.button-danger:hover:not(:disabled) { background: #843c34; }
.button-small { min-height: 34px; padding: 0 12px; font-size: 12px; }
.button-wide { width: 100%; }
.text-button { padding: 0; border: 0; background: transparent; color: var(--pine); font-size: 12px; font-weight: 700; }
.text-button:hover { color: var(--pine-dark); text-decoration: underline; }
.text-danger { color: var(--danger); }
.icon-button { display: inline-grid; place-items: center; width: 34px; height: 34px; border: 0; border-radius: 50%; background: transparent; color: var(--ink-muted); font-size: 24px; line-height: 1; }
.icon-button:hover { background: var(--paper-deep); color: var(--ink); }
.login-view { min-height: 100vh; display: grid; place-items: center; padding: 24px; background: var(--paper); }
.login-card { width: min(100%, 430px); padding: 52px 44px 34px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); box-shadow: var(--shadow); }
.login-logo { display: block; width: 108px; height: 53px; margin: 0 0 25px; object-fit: contain; object-position: left center; }
.login-card h1 { margin: 0; font-family: var(--sans); font-size: 28px; font-weight: 650; letter-spacing: -.02em; }
.login-lede { margin: 9px 0 28px; color: var(--ink-muted); }
.stack-form { display: grid; gap: 17px; }
.login-foot { margin: 34px 0 0; padding-top: 16px; border-top: 1px solid var(--line); color: var(--ink-soft); font-family: var(--sans); font-size: 10px; letter-spacing: .08em; text-transform: uppercase; }
.form-error { margin: 0; color: var(--danger); font-size: 12px; }
.app-shell { min-height: 100vh; display: flex; }
.sidebar { position: fixed; inset: 0 auto 0 0; z-index: 3; display: flex; flex-direction: column; width: 225px; padding: 29px 19px 20px; border-right: 1px solid var(--line); background: var(--panel); }
.brand-lockup { display: flex; flex-direction: column; align-items: flex-start; gap: 22px; padding: 0 8px 20px; }
.brand-logo { display: block; width: 90px; height: 44px; object-fit: contain; object-position: left center; }
.brand-module { color: var(--ink-soft); font-size: 12px; font-weight: 500; }

.main-nav { display: grid; gap: 6px; }
.nav-item { display: flex; align-items: center; gap: 12px; padding: 12px 13px; border: 0; border-radius: 9px; background: transparent; color: var(--ink-muted); text-align: left; font-weight: 600; }
.nav-item:hover { background: var(--panel); color: var(--ink); }
.nav-item.is-active { background: var(--mint); color: var(--pine-dark); }
.nav-icon { width: 18px; color: var(--clay); font-size: 17px; text-align: center; }
.sidebar-foot { display: grid; gap: 12px; margin-top: auto; padding: 20px 12px 0; border-top: 1px solid var(--line); }
.site-link, .logout-button { display: flex; align-items: center; justify-content: space-between; border: 0; background: transparent; color: var(--ink-muted); font-size: 12px; text-decoration: none; }
.site-link:hover, .logout-button:hover { color: var(--pine); }
.logout-button { justify-content: flex-start; gap: 8px; }
.content-shell { width: calc(100% - 225px); margin-left: 225px; }
.topbar { display: flex; align-items: center; justify-content: space-between; min-height: 74px; padding: 0 clamp(23px, 4vw, 55px); border-bottom: 1px solid var(--line); background: var(--panel); }
.breadcrumb { display: flex; align-items: center; gap: 9px; color: var(--ink-soft); font-family: var(--sans); font-size: 11px; }
.breadcrumb strong { color: var(--ink); font-family: var(--sans); font-size: 13px; }
.top-actions { display: flex; align-items: center; gap: 15px; }
.live-dot { display: inline-flex; align-items: center; gap: 6px; color: var(--ink-muted); font-size: 11px; }
.live-dot i { width: 7px; height: 7px; border-radius: 50%; background: #666; box-shadow: none; }
.user-badge { padding: 6px 9px; border-radius: 7px; background: var(--paper-deep); color: var(--ink-muted); font-size: 11px; }
.page-view { max-width: 1400px; margin: 0 auto; padding: clamp(30px, 5vw, 56px) clamp(23px, 4vw, 55px) 70px; }
.page-intro { display: flex; align-items: end; justify-content: space-between; gap: 25px; margin-bottom: 30px; }
.page-intro h1 { margin: 0; font-family: var(--sans); font-size: clamp(28px, 3vw, 34px); font-weight: 650; letter-spacing: -.025em; line-height: 1.08; }
.page-intro p:not(.eyebrow) { margin: 9px 0 0; color: var(--ink-muted); }
.metrics { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 13px; margin-bottom: 34px; }
.metric-card { display: grid; grid-template-columns: 1fr auto; gap: 1px 12px; min-height: 103px; padding: 18px 19px 14px; border: 1px solid var(--line); border-radius: 12px; background: var(--panel); }
.metric-card strong { grid-row: span 2; align-self: center; color: var(--pine-dark); font-family: var(--sans); font-size: 32px; font-weight: 650; line-height: 1; }
.metric-label { color: var(--ink-muted); font-size: 11px; font-weight: 700; letter-spacing: .06em; text-transform: uppercase; }
.metric-note { color: var(--ink-soft); font-size: 11px; }
.metric-accent { border-color: var(--line); background: var(--clay-soft); }
.metric-accent strong { color: var(--ink); }
.library-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 17px; margin-bottom: 17px; }
.search-wrap { display: flex; align-items: center; gap: 8px; width: min(420px, 100%); padding: 0 12px; border: 1px solid var(--line-dark); border-radius: 9px; background: var(--white); color: var(--ink-soft); }
.search-wrap input { padding: 10px 0; border: 0; background: transparent; box-shadow: none; }
.toolbar-actions { display: flex; align-items: center; gap: 10px; }
.select-wrap { min-width: 130px; }
.select-wrap select { padding: 9px 12px; color: var(--ink-muted); font-size: 12px; }
.view-toggle { display: flex; border: 1px solid var(--line-dark); border-radius: 8px; overflow: hidden; }
.view-toggle button { width: 37px; height: 35px; border: 0; border-right: 1px solid var(--line-dark); background: var(--white); color: var(--ink-soft); }
.view-toggle button:last-child { border-right: 0; }
.view-toggle button.is-active { background: var(--mint); color: var(--pine-dark); }
.case-grid { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 17px; }
.case-card { min-width: 0; overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); transition: transform .2s, box-shadow .2s; }
.case-card:hover { transform: translateY(-2px); box-shadow: var(--shadow); }
.case-cover { position: relative; aspect-ratio: 16 / 9; overflow: hidden; background: var(--paper-deep); }
.case-cover img { display: block; width: 100%; height: 100%; object-fit: contain; }
.cover-missing { background: var(--paper-deep); }
.cover-placeholder { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 12px; width: 100%; height: 100%; padding: 16px; color: var(--ink-soft); }
.cover-placeholder span { font-size: 12px; }
.cover-placeholder img { width: 34px; height: 40px; opacity: .36; object-fit: contain; }
.featured-badge, .cover-status, .duration { position: absolute; z-index: 1; padding: 4px 7px; border-radius: 5px; font-family: var(--sans); font-size: 10px; letter-spacing: 0; }
.featured-badge { top: 12px; left: 12px; background: var(--clay); color: white; }
.cover-status { right: 12px; bottom: 12px; background: rgba(255, 255, 255, .92); color: var(--ink); }
.status-published { background: #fff; color: var(--ink); }
.status-processing { background: var(--sand); color: var(--ink-muted); }
.status-failed { background: var(--danger-soft); color: var(--danger); }
.duration { right: 12px; top: 12px; background: rgba(0, 0, 0, .64); color: white; }
.cover-play { position: absolute; inset: 50% auto auto 50%; z-index: 2; display: grid; place-items: center; width: 44px; height: 44px; padding-left: 3px; border: 1px solid rgba(255, 255, 255, .75); border-radius: 50%; background: rgba(0, 0, 0, .58); color: white; font-size: 16px; transform: translate(-50%, -50%); }
.cover-play:hover { background: var(--pine); }
.case-content { padding: 16px 17px 13px; }
.case-eyebrow { display: flex; align-items: center; justify-content: space-between; color: var(--clay); font-family: var(--sans); font-size: 11px; letter-spacing: 0; }
.case-eyebrow span:last-child { color: var(--ink-soft); }
.case-content h2 { overflow: hidden; margin: 7px 0 0; font-family: var(--sans); font-size: 17px; font-weight: 600; letter-spacing: -.02em; text-overflow: ellipsis; white-space: nowrap; }
.case-client { overflow: hidden; margin: 2px 0 0; color: var(--ink-muted); font-size: 12px; text-overflow: ellipsis; white-space: nowrap; }
.case-footer { display: flex; align-items: center; justify-content: space-between; min-height: 46px; padding: 0 17px; border-top: 1px solid var(--line); }
.case-actions { display: flex; gap: 14px; }
.card-processing { display: flex; justify-content: space-between; margin-top: 11px; color: var(--ink-muted); font-size: 11px; }
.card-processing strong { color: var(--pine); font-family: var(--sans); font-size: 10px; }
.card-progress-track { height: 4px; margin-top: 6px; overflow: hidden; border-radius: 9px; background: var(--paper-deep); }
.card-progress-track i { display: block; height: 100%; border-radius: inherit; background: var(--pine); transition: width .2s; }
.card-error { margin: 9px 0 0; color: var(--danger); font-size: 11px; }
.case-list { grid-template-columns: 1fr; }
.case-list .case-card { display: grid; grid-template-columns: 230px 1fr auto; align-items: stretch; }
.case-list .case-cover { aspect-ratio: auto; min-height: 138px; }
.case-list .case-footer { display: flex; flex-direction: column; align-items: end; justify-content: center; gap: 10px; min-width: 165px; border-top: 0; border-left: 1px solid var(--line); }
.case-list .case-content { display: flex; flex-direction: column; justify-content: center; }
.empty-state { display: grid; place-items: center; gap: 7px; min-height: 260px; padding: 40px 20px; border: 1px dashed var(--line-dark); border-radius: 14px; text-align: center; }
.empty-state[hidden] { display: none; }
.empty-icon { color: var(--clay); font-family: var(--sans); font-size: 46px; }
.empty-state h2 { margin: 0; font-family: var(--sans); font-size: 22px; font-weight: 650; }
.empty-state p { margin: 0 0 9px; color: var(--ink-muted); }
.settings-form { display: grid; gap: 16px; max-width: 960px; }
.settings-card { padding: 26px; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); }
.section-heading { display: flex; gap: 13px; align-items: flex-start; margin-bottom: 22px; }

.section-heading h2 { margin: 0; font-family: var(--sans); font-size: 18px; font-weight: 650; }
.section-heading p { margin: 3px 0 0; color: var(--ink-muted); font-size: 12px; }
.field-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.field-span-2 { grid-column: span 2; }
.field-help { color: var(--ink-soft); font-size: 10px; font-weight: 400; }
.inline-note { display: block; margin-top: 6px; color: var(--ink-soft); font-size: 11px; font-weight: 400; }
.password-card .button { margin-top: 19px; }
.modal-dialog { width: min(680px, calc(100% - 30px)); max-height: calc(100% - 30px); padding: 0; border: 1px solid var(--line); border-radius: 14px; background: var(--panel); color: var(--ink); box-shadow: 0 30px 80px rgba(0, 0, 0, .14); }
.modal-dialog::backdrop { background: rgba(0, 0, 0, .35); backdrop-filter: blur(4px); }
.modal-card, .preview-card { display: flex; flex-direction: column; max-height: calc(100vh - 30px); }
.modal-header { display: flex; align-items: flex-start; justify-content: space-between; gap: 15px; padding: 25px 27px 18px; border-bottom: 1px solid var(--line); }
.modal-header h2 { margin: 0; font-family: var(--sans); font-size: 22px; font-weight: 650; letter-spacing: -.025em; }
.modal-body { overflow-y: auto; padding: 25px 27px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 9px; padding: 16px 27px; border-top: 1px solid var(--line); background: var(--paper-deep); }
.check-field { flex-direction: row; align-items: center; align-self: end; gap: 8px; min-height: 42px; }
.check-field input { width: 17px; height: 17px; accent-color: var(--pine); }
.media-fields { display: grid; gap: 10px; margin-top: 22px; }
.media-field { display: flex; align-items: center; justify-content: space-between; gap: 15px; padding: 12px 13px; border: 1px solid var(--line); border-radius: 9px; background: var(--paper); }
.media-field strong, .file-name { display: block; }
.file-name { margin-top: 2px; color: var(--ink-muted); font-size: 11px; font-weight: 400; }
.drop-zone { display: grid; place-items: center; gap: 5px; min-height: 220px; padding: 25px; border: 1px dashed var(--line-dark); border-radius: 14px; background: var(--paper); color: var(--ink-muted); text-align: center; transition: background .2s, border-color .2s; }
.drop-zone:hover, .drop-zone.is-dragging { border-color: var(--pine); background: var(--mint); }
.drop-zone.is-disabled { pointer-events: none; opacity: .65; }
.drop-icon { display: grid; place-items: center; width: 45px; height: 45px; border-radius: 50%; background: var(--clay-soft); color: var(--clay); font-size: 24px; }
.drop-zone strong { color: var(--ink); font-family: var(--sans); font-size: 23px; font-weight: 500; }
.drop-zone span:last-of-type { font-size: 12px; }
.upload-progress { margin-top: 20px; }
.progress-label { display: flex; justify-content: space-between; color: var(--ink-muted); font-size: 12px; }
.progress-label strong { color: var(--pine); font-family: var(--sans); font-size: 11px; }
.progress-track { height: 7px; margin-top: 9px; overflow: hidden; border-radius: 9px; background: var(--paper-deep); }
.progress-track i { display: block; width: 0; height: 100%; border-radius: inherit; background: var(--pine); transition: width .25s; }
.small-modal { width: 100%; }
.small-modal .modal-body { min-height: 120px; }
.small-modal .modal-body p { margin: 0; color: var(--ink-muted); }
.preview-dialog { width: min(960px, calc(100% - 30px)); }
.preview-stage { position: relative; padding: 22px; background: #171717; }
.preview-stage video { display: block; width: 100%; max-height: 64vh; background: black; }
.preview-watermark { position: absolute; right: 34px; bottom: 33px; color: rgba(255, 255, 255, .62); font-family: var(--sans); font-size: 10px; letter-spacing: .1em; pointer-events: none; }
.preview-meta { display: flex; align-items: end; justify-content: space-between; gap: 15px; padding: 18px 22px 22px; }
.preview-meta h3 { margin: 4px 0 0; font-family: var(--sans); font-size: 22px; font-weight: 650; }
.preview-meta span:first-child { color: var(--ink-muted); font-size: 11px; }
.status-pill { padding: 5px 8px; border-radius: 5px; background: var(--mint); color: var(--pine-dark); font-family: var(--sans); font-size: 10px; }
.toast-region { position: fixed; z-index: 20; top: 18px; right: 20px; display: grid; gap: 9px; width: min(360px, calc(100% - 40px)); }
.toast { padding: 12px 15px; border: 1px solid var(--mint-strong); border-radius: 9px; background: var(--mint); color: var(--pine-dark); box-shadow: 0 10px 28px rgba(0, 0, 0, .08); font-size: 12px; animation: toast-in .25s ease both; }
.toast-error { border-color: #e4bdb5; background: var(--danger-soft); color: var(--danger); }
@keyframes toast-in { from { opacity: 0; transform: translateY(-7px); } to { opacity: 1; transform: translateY(0); } }
@media (max-width: 1120px) { .case-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); } }
@media (max-width: 820px) { .sidebar { position: static; width: 100%; min-height: auto; padding: 15px 17px; border-right: 0; border-bottom: 1px solid var(--line); } .app-shell { display: block; } .content-shell { width: auto; margin-left: 0; } .brand-lockup { display: flex; flex-direction: column; align-items: flex-start; gap: 22px; padding: 0 8px 20px; } .main-nav { display: flex; gap: 6px; } .nav-item { flex: 1; justify-content: center; padding: 9px 10px; } .sidebar-foot { display: flex; align-items: center; justify-content: space-between; margin-top: 12px; padding: 12px 3px 0; } .topbar { min-height: 58px; padding: 0 20px; } .page-view { padding: 30px 20px 55px; } }
@media (max-width: 620px) { .login-card { padding: 35px 24px 26px; } .page-intro { align-items: flex-start; flex-direction: column; } .page-intro .button { width: 100%; } .metrics { grid-template-columns: repeat(2, minmax(0, 1fr)); } .metric-card { min-height: 88px; padding: 13px 14px; } .metric-card strong { font-size: 30px; } .library-toolbar { align-items: stretch; flex-direction: column; } .search-wrap { width: 100%; } .toolbar-actions { justify-content: space-between; } .case-grid { grid-template-columns: 1fr; } .case-list .case-card { display: block; } .case-list .case-cover { min-height: 0; aspect-ratio: 16 / 9; } .case-list .case-footer { align-items: center; flex-direction: row; justify-content: space-between; min-width: 0; min-height: 49px; border-top: 1px solid var(--line); border-left: 0; } .field-grid { grid-template-columns: 1fr; } .field-span-2 { grid-column: auto; } .settings-card { padding: 20px; } .modal-dialog { width: calc(100% - 20px); } .modal-header, .modal-body { padding-right: 19px; padding-left: 19px; } .modal-footer { padding-right: 19px; padding-left: 19px; } .media-field { align-items: flex-start; flex-direction: column; } .media-field .button { width: 100%; } .preview-stage { padding: 12px; } .preview-meta { padding: 14px 12px 17px; } .preview-watermark { right: 22px; bottom: 22px; font-size: 8px; } }
@media (prefers-reduced-motion: reduce) { *, *::before, *::after { scroll-behavior: auto !important; transition-duration: .001ms !important; animation-duration: .001ms !important; } }