/* ==========================================================================
   Apple-style layer
   Loaded after styles.css: only overrides tokens and UI chrome. The A4
   document canvas, official-document typography and print rules are untouched.
   ========================================================================== */

:root {
  --ink: #1d1d1f;
  --ink-deep: #000000;
  --ink-soft: #424245;
  --ink-muted: #6e6e73;
  --sage: #86868b;
  --sage-soft: #e8e8ed;
  --paper: #ffffff;
  --canvas: #f5f5f7;
  --surface: #ffffff;
  --surface-soft: #f5f5f7;
  --line: #e5e5ea;
  --line-strong: #d2d2d7;
  --accent: #0071e3;
  --accent-soft: #e8f1fd;
  --danger: #d70015;
  --danger-soft: #ffe9e9;
  --success: #1d8a4e;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.04), 0 4px 16px rgba(0, 0, 0, 0.04);
  --shadow-md: 0 2px 6px rgba(0, 0, 0, 0.05), 0 18px 46px rgba(0, 0, 0, 0.08);
  --shadow-paper: 0 2px 6px rgba(0, 0, 0, 0.05), 0 30px 80px rgba(0, 0, 0, 0.1);

  --radius-sm: 10px;
  --radius-md: 14px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro SC",
    "SF Pro Display", "PingFang SC", "Helvetica Neue", "Microsoft YaHei", sans-serif;
  --font-serif: var(--font-sans);
  --header-h: 56px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

body {
  background: var(--canvas);
  font-size: 14px;
  letter-spacing: -0.01em;
}

[hidden] {
  display: none !important;
}

h1,
h2,
h3,
h4 {
  letter-spacing: -0.022em;
}

/* ---------------------------------------------------------------- buttons */

.btn {
  border-radius: 980px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: background-color 0.2s ease, color 0.2s ease, transform 0.14s ease,
    box-shadow 0.2s ease;
}

.btn:hover {
  transform: none;
}

.btn:active {
  transform: scale(0.98);
}

.btn--primary {
  background: var(--accent);
  color: #fff;
  box-shadow: none;
}

.btn--primary:hover {
  background: #0077ed;
  box-shadow: none;
}

.btn--secondary {
  border-color: transparent;
  background: rgba(0, 0, 0, 0.05);
  color: var(--ink);
  box-shadow: none;
}

.btn--secondary:hover {
  background: rgba(0, 0, 0, 0.08);
  border-color: transparent;
}

.btn--ghost {
  color: var(--accent);
}

.btn--ghost:hover {
  background: rgba(0, 113, 227, 0.08);
}

.btn--compact {
  min-height: 34px;
  padding: 0 16px;
  font-size: 13px;
}

.btn--danger {
  background: var(--danger);
  color: #fff;
}

.btn:focus-visible,
.icon-button:focus-visible,
.nav-link:focus-visible,
.auth-tab:focus-visible {
  outline: 3px solid rgba(0, 113, 227, 0.45);
  outline-offset: 2px;
}

/* --------------------------------------------------------------- controls */

.field-label {
  margin-bottom: 8px;
  color: var(--ink-muted);
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0;
}

.field-input {
  min-height: 46px;
  border: 1px solid transparent;
  border-radius: 12px;
  background: rgba(118, 118, 128, 0.08);
}

.field-input:focus-within {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 4px rgba(0, 113, 227, 0.12);
}

.field-input input,
.field-input select {
  height: 44px;
  font-size: 15px;
}

.field-input input::placeholder {
  color: #a1a1a6;
}

.field-input input:-webkit-autofill {
  -webkit-box-shadow: 0 0 0 60px #fff inset;
  -webkit-text-fill-color: var(--ink);
}

.field-hint,
.field-tip {
  color: var(--ink-muted);
}

/* ---------------------------------------------------------- login screen */

.login-screen {
  position: relative;
  display: grid;
  /* 单列 minmax(0,1fr)：否则网格轨道按 max-content 撑开，窄屏会横向溢出 */
  grid-template-columns: minmax(0, 1fr);
  place-items: center;
  min-height: 100dvh;
  padding: 48px 24px;
  overflow: hidden;
  background: #f5f5f7;
}

.login-bg {
  position: absolute;
  inset: 0;
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  transform: scale(1.02);
}

.login-screen:not(.has-bg) .login-bg {
  background: radial-gradient(1200px 720px at 15% 10%, #e9edf5 0%, transparent 55%),
    radial-gradient(1000px 700px at 85% 90%, #eef1f4 0%, transparent 55%),
    linear-gradient(180deg, #fbfbfd 0%, #f2f2f5 100%);
}

.login-screen:not(.has-bg) .login-scrim {
  display: none;
}

.login-scrim {
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, rgba(0, 0, 0, 0.16), rgba(0, 0, 0, 0.4));
}

.login-shell {
  position: relative;
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  width: 100%;
  max-width: 420px;
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 11px;
  color: var(--ink);
}

.login-screen.has-bg .login-brand {
  color: #fff;
  text-shadow: 0 1px 14px rgba(0, 0, 0, 0.35);
}

.login-brand-mark {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  overflow: hidden;
  border-radius: 13px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.login-brand-mark .icon {
  width: 22px;
  height: 22px;
  color: var(--accent);
  stroke-width: 1.7;
}

.login-brand-mark img {
  width: 100%;
  height: 100%;
  padding: 5px;
  object-fit: contain;
}

.login-brand-name {
  font-size: 17px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.login-card {
  width: 100%;
  padding: 34px 32px 24px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.16), 0 0 0 0.5px rgba(0, 0, 0, 0.06);
  backdrop-filter: blur(40px) saturate(180%);
  -webkit-backdrop-filter: blur(40px) saturate(180%);
}

.login-card-head h1 {
  margin: 0 0 8px;
  font-size: 28px;
  font-weight: 600;
  line-height: 1.14;
  letter-spacing: -0.025em;
  color: var(--ink);
}

.login-eyebrow {
  margin: 0 0 12px;
  color: #86868b;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}

.login-card-head > p:last-child {
  margin: 0;
  color: var(--ink-muted);
  font-size: 13.5px;
  line-height: 1.5;
}

.login-callout {
  display: flex;
  gap: 10px;
  padding: 14px 15px;
  margin-bottom: 4px;
  border-radius: 13px;
  background: rgba(0, 113, 227, 0.07);
  color: #0a5bb0;
}

.login-callout .icon {
  flex: none;
  width: 18px;
  height: 18px;
  margin-top: 1px;
}

.login-callout p {
  margin: 0;
  font-size: 12.5px;
  line-height: 1.5;
}

.login-card .auth-tabs {
  position: relative;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0;
  padding: 2px;
  margin: 22px 0 22px;
  border-radius: 11px;
  background: rgba(118, 118, 128, 0.12);
}

.login-card .auth-tab {
  position: relative;
  z-index: 1;
  height: 32px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: #3a3a3c;
  font-size: 13px;
  font-weight: 500;
}

.login-card .auth-tab.is-active {
  color: var(--ink);
  font-weight: 600;
}

.login-card .auth-tab-slider {
  position: absolute;
  top: 2px;
  left: 2px;
  width: calc(50% - 2px);
  height: 32px;
  border-radius: 9px;
  background: #fff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.12);
  transition: transform 0.3s var(--ease);
}

.login-card .auth-tabs.is-register .auth-tab-slider {
  transform: translateX(100%);
}

.login-card .auth-form {
  display: flex;
  flex-direction: column;
  gap: 15px;
}

.login-card .auth-form .btn--primary {
  justify-content: center;
  min-height: 46px;
  margin-top: 4px;
  padding: 0 18px;
  font-size: 15px;
}

.login-card .auth-form .btn--primary .btn-label {
  flex: 0 0 auto;
  text-align: center;
}

.auth-switch {
  margin: 18px 0 0;
  color: var(--ink-muted);
  font-size: 12.5px;
  text-align: center;
}

.auth-switch button {
  padding: 0;
  border: 0;
  background: none;
  color: var(--accent);
  font-size: 12.5px;
  font-weight: 500;
}

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

.auth-note {
  position: static;
  bottom: auto;
  width: min(380px, 100%);
  margin: 0;
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.5;
  letter-spacing: 0;
  text-align: center;
}

.login-screen.has-bg .auth-note {
  color: rgba(255, 255, 255, 0.9);
  text-shadow: 0 1px 8px rgba(0, 0, 0, 0.4);
}

/* ----------------------------------------------------------------- header */

.app-header {
  height: var(--header-h);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
  background: rgba(255, 255, 255, 0.72);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);
}

.header-inner {
  width: min(1120px, 100%);
  padding: 0 24px;
}

.brand-copy strong {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

.brand-copy small {
  color: var(--ink-muted);
  font-size: 11px;
}

.brand-mark {
  border-radius: 9px;
  background: rgba(0, 0, 0, 0.04);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  padding: 3px;
  border-radius: inherit;
  object-fit: contain;
}

.brand-mark .icon {
  color: var(--accent);
  stroke-width: 1.7;
}

.brand-mark.has-image .icon,
.login-brand-mark.has-image .icon {
  display: none;
}

.app-nav {
  gap: 2px;
  margin-left: 28px;
}

.nav-link {
  height: 32px;
  padding: 0 12px;
  border-radius: 8px;
  color: var(--ink-muted);
  font-size: 13px;
  font-weight: 400;
}

.nav-link:hover {
  background: rgba(0, 0, 0, 0.05);
  color: var(--ink);
}

.nav-link.is-active {
  color: var(--ink);
  font-weight: 500;
}

.nav-link.is-active::after {
  display: none;
}

/* user menu */

.user-menu-wrap {
  position: relative;
  margin-left: 8px;
}

.user-menu-wrap .user-chip {
  padding: 4px 8px 4px 4px;
  border: 0;
  border-radius: 980px;
  background: transparent;
  color: var(--ink);
  transition: background-color 0.18s ease;
}

.user-menu-wrap .user-chip:hover {
  background: rgba(0, 0, 0, 0.05);
}

.user-chip-chevron {
  width: 15px;
  height: 15px;
  color: var(--ink-muted);
}

.user-avatar {
  background: linear-gradient(180deg, #f5f5f7, #e8e8ed);
  color: var(--ink-soft);
  font-weight: 500;
}

.user-menu {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 60;
  width: 168px;
  padding: 6px;
  border: 0.5px solid rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.94);
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.16);
  backdrop-filter: blur(30px) saturate(180%);
  -webkit-backdrop-filter: blur(30px) saturate(180%);
  animation: menu-in 0.16s ease both;
}

@keyframes menu-in {
  from { opacity: 0; transform: translateY(-4px) scale(0.98); }
  to { opacity: 1; transform: translateY(0) scale(1); }
}

.user-menu-item {
  display: flex;
  align-items: center;
  gap: 9px;
  width: 100%;
  height: 36px;
  padding: 0 10px;
  border: 0;
  border-radius: 9px;
  background: transparent;
  color: var(--ink);
  font-size: 13.5px;
  text-align: left;
}

.user-menu-item:hover {
  background: rgba(0, 0, 0, 0.05);
}

.user-menu-item .icon {
  width: 16px;
  height: 16px;
  color: var(--ink-muted);
  stroke-width: 1.7;
}

/* ------------------------------------------------------------- surfaces */

.dashboard-hero,
.stat-card,
.admin-card,
.compliance-banner,
.penalty-summary-strip,
.settings-help,
.document-card,
.panel {
  border-color: rgba(0, 0, 0, 0.07);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.stat-card:hover {
  transform: none;
  border-color: rgba(0, 0, 0, 0.1);
  box-shadow: 0 8px 28px rgba(0, 0, 0, 0.06);
}

.stat-card--tint,
.stat-card--penalty {
  background: #fff;
}

.stat-label {
  color: var(--ink-muted);
  font-weight: 500;
}

.stat-value {
  letter-spacing: -0.03em;
}

.section-label,
.eyebrow,
.side-label {
  color: var(--ink-muted);
  letter-spacing: 0.08em;
  font-weight: 600;
}

.dashboard-hero h1 {
  letter-spacing: -0.03em;
  font-weight: 600;
}

.compliance-banner {
  background: #fff;
}

.admin-card-head h2 {
  font-size: 19px;
  font-weight: 600;
  letter-spacing: -0.02em;
}

/* ------------------------------------------------------------- brand form */

.brand-settings {
  padding: 22px;
  border-top: 1px solid var(--line);
  background: #fbfbfd;
}

.brand-settings-head {
  display: flex;
  flex-wrap: wrap;
  align-items: flex-end;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 18px;
}

.brand-settings-head h3 {
  margin: 2px 0 0;
  font-size: 16px;
  font-weight: 600;
}

.brand-settings-head > p {
  margin: 0;
  color: var(--ink-muted);
  font-size: 12.5px;
}

.brand-upload-grid {
  display: grid;
  gap: 16px;
}

.brand-upload {
  display: flex;
  gap: 16px;
  padding: 16px;
  border: 1px solid var(--line);
  border-radius: 16px;
  background: #fff;
}

.brand-preview {
  display: grid;
  flex: none;
  place-items: center;
  width: 128px;
  height: 84px;
  overflow: hidden;
  border-radius: 12px;
  background: rgba(118, 118, 128, 0.08);
  color: var(--ink-muted);
  font-size: 11px;
  text-align: center;
}

.brand-preview--logo {
  width: 84px;
  background: #f5f5f7;
}

.brand-preview .icon {
  width: 26px;
  height: 26px;
  color: #c7c7cc;
}

.brand-preview img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand-preview--logo img {
  object-fit: contain;
  padding: 14px;
  background: #fff;
}

.brand-upload-body {
  min-width: 0;
}

.brand-upload-body strong {
  display: block;
  margin-bottom: 4px;
  font-size: 14px;
  font-weight: 600;
}

.upload-hint {
  margin: 0 0 12px;
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.55;
}

.upload-hint b {
  color: var(--ink-soft);
  font-weight: 600;
}

.upload-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.upload-actions label.btn {
  cursor: pointer;
}

/* ----------------------------------------------------------------- modal */

.modal {
  border-radius: 20px;
  background: #fff;
}

.modal::backdrop {
  background: rgba(0, 0, 0, 0.42);
  backdrop-filter: blur(8px);
}

.modal-head h2 {
  letter-spacing: -0.02em;
}

/* ----------------------------------------------------------------- toast */

.toast {
  border-radius: 14px;
  background: rgba(29, 29, 31, 0.94);
  color: #fff;
  backdrop-filter: blur(20px);
}

.toast.is-error {
  background: rgba(215, 0, 21, 0.95);
}

/* ------------------------------------------------------- autosave panel */

.autosave-card {
  color: var(--ink);
  border: 1px solid rgba(0, 0, 0, 0.07);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.autosave-card::after {
  display: none;
}

.autosave-card .side-label {
  color: var(--ink-muted);
}

.autosave-card h3 {
  color: var(--ink);
}

.autosave-readiness {
  color: var(--ink-muted);
}

.autosave-readiness span {
  color: var(--ink-muted);
  font-size: 11px;
}

.readiness-bar i {
  background: var(--success);
}

#lastSavedLabel {
  color: var(--ink-muted);
  font-size: 10px;
}

.autosave-icon {
  border-color: rgba(0, 0, 0, 0.06);
  background: rgba(29, 138, 78, 0.1);
  color: #1d8a4e;
}

.autosave-copy {
  color: var(--ink-muted);
}

.readiness-bar {
  background: rgba(0, 0, 0, 0.08);
}

/* --------------------------------------------------------- side info cards */

.side-info-card {
  border-color: rgba(0, 0, 0, 0.07);
  border-radius: 18px;
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.side-info-card--dark {
  color: var(--ink);
  border-color: rgba(0, 0, 0, 0.07);
  background: #fff;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.03);
}

.side-info-card--dark::after {
  display: none;
}

.side-info-card--dark .side-label {
  color: var(--ink-muted);
}

.side-info-card--dark h3 {
  color: var(--ink);
}

.side-info-card--dark > p:not(.side-label) {
  color: var(--ink-muted);
  font-size: 12px;
  line-height: 1.6;
}

.side-info-card > p strong {
  color: var(--ink);
}

.side-info-icon {
  border: 0;
  background: rgba(0, 113, 227, 0.1);
  color: var(--accent);
}

.side-info-card--dark .side-rule-list span,
.side-rule-list span {
  color: var(--ink-soft);
  font-size: 11.5px;
}

.side-rule-list .icon {
  color: #1d8a4e;
}

/* ------------------------------------------------------ file type picker */

.filetype-option {
  border-color: rgba(0, 0, 0, 0.08);
  border-radius: 14px;
  background: #fff;
}

.filetype-option:hover {
  border-color: rgba(0, 0, 0, 0.18);
}

.filetype-option.is-active {
  border-color: var(--accent);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.12);
}

.filetype-option--penalty.is-active {
  border-color: var(--danger);
  background: #fff;
  box-shadow: 0 0 0 3px rgba(215, 0, 21, 0.1);
}

/* ---------------------------------------------------------------- tables */

.ledger-table thead th {
  color: var(--ink-muted);
  font-weight: 500;
}

/* -------------------------------------------------------------- responsive */

@media (max-width: 900px) {
  .login-screen {
    padding: 28px 16px;
  }

  .login-card {
    padding: 28px 22px 20px;
    border-radius: 20px;
  }

  .login-card-head h1 {
    font-size: 24px;
  }

  .brand-upload {
    flex-direction: column;
  }

  .brand-preview {
    width: 100%;
    height: 120px;
  }
}

@media (max-width: 700px) {
  .dashboard-hero {
    flex-direction: column;
    align-items: stretch;
    gap: 16px;
  }

  .btn--hero {
    width: 100%;
  }

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

  .penalty-summary-strip {
    grid-template-columns: 1fr;
    gap: 0;
    padding: 6px 18px;
  }

  .penalty-summary-strip > div {
    padding: 12px 0;
    border-top: 1px solid rgba(0, 0, 0, 0.07);
    border-left: 0;
  }

  .penalty-summary-strip > div:first-child {
    border-top: 0;
    padding-left: 0;
  }
}

@media (max-width: 620px) {
  .app-header {
    --header-h: 52px;
  }

  .user-meta {
    display: none;
  }

  .header-inner {
    padding: 0 14px;
  }
}