:root {
      --bg: #f6f4ef;
      --surface: #ffffff;
      --surface-2: #f1efe7;
      --surface-3: #ece8df;
      --text: #1d1f23;
      --muted: #6f6b63;
      --border: #d9d2c6;
      --accent: #1b7f79;
      --accent-warm: #f4a261;
      --danger: #d64550;
      --accent-strong: color-mix(in srgb, var(--accent) 82%, var(--text) 18%);
      --accent-soft: color-mix(in srgb, var(--accent) 12%, transparent);
      --accent-border: color-mix(in srgb, var(--accent) 35%, transparent);
      --accent-focus: color-mix(in srgb, var(--accent) 20%, transparent);
      --warm-soft: color-mix(in srgb, var(--accent-warm) 15%, transparent);
      --warm-border: color-mix(in srgb, var(--accent-warm) 35%, transparent);
      --warm-text: color-mix(in srgb, var(--accent-warm) 70%, var(--text) 30%);
      --warning: color-mix(in srgb, var(--accent-warm) 55%, var(--danger) 45%);
      --warning-soft: color-mix(in srgb, var(--warning) 15%, transparent);
      --warning-border: color-mix(in srgb, var(--warning) 35%, transparent);
      --warning-strong: color-mix(in srgb, var(--warning) 82%, var(--text) 18%);
      --danger-strong: color-mix(in srgb, var(--danger) 82%, var(--text) 18%);
      --danger-soft: color-mix(in srgb, var(--danger) 15%, transparent);
      --danger-border: color-mix(in srgb, var(--danger) 35%, transparent);
      --success: color-mix(in srgb, var(--accent) 70%, var(--text) 30%);
      --success-soft: color-mix(in srgb, var(--success) 15%, transparent);
      --success-border: color-mix(in srgb, var(--success) 35%, transparent);
      --text-on-accent: var(--surface);
      --shadow-soft: 0 12px 30px color-mix(in srgb, var(--text) 8%, transparent);
      --shadow-card: 0 20px 45px color-mix(in srgb, var(--text) 12%, transparent);
      --radius-lg: 18px;
      --radius-md: 12px;
      --radius-sm: 10px;
      --control-height: 38px;
      --control-radius: 12px;
      --control-padding-x: 0.95rem;
      --control-font: 0.85rem;
    }
    * {
      box-sizing: border-box;
    }
    body {
      margin: 0;
      background: var(--bg);
      color: var(--text);
      font-family: "Space Grotesk", "IBM Plex Sans", "Helvetica Neue", sans-serif;
      min-height: 100vh;
      line-height: 1.5;
      position: relative;
      overflow-x: hidden;
    }
    body::before,
    body::after {
      content: "";
      position: absolute;
      inset: -20% auto auto -10%;
      width: 520px;
      height: 520px;
      background: radial-gradient(circle, color-mix(in srgb, var(--accent) 18%, transparent), transparent 65%);
      z-index: 0;
      filter: blur(4px);
    }
    body::after {
      inset: auto -10% -20% auto;
      background: radial-gradient(circle, color-mix(in srgb, var(--accent-warm) 20%, transparent), transparent 60%);
    }
    .auth-shell {
      min-height: 100vh;
      display: flex;
      align-items: center;
      justify-content: center;
      padding: 2.5rem;
      position: relative;
      z-index: 1;
    }
    .auth-card form {
      display: grid;
      gap: 0.6rem;
    }
    .auth-card .card-title,
    .auth-card h2 {
      font-family: "Instrument Serif", "Times New Roman", serif;
      letter-spacing: -0.01em;
    }
    .auth-submit {
      margin-top: 0.4rem;
    }
    .auth-link {
      margin-top: 0.6rem;
    }
    h1, h2, h3, h4 {
      font-family: "Instrument Serif", "Times New Roman", serif;
      letter-spacing: -0.01em;
      margin: 0 0 0.6rem 0;
    }
    p {
      margin: 0 0 0.75rem 0;
      color: var(--text);
    }
    a {
      color: var(--accent);
      text-decoration: none;
      font-weight: 500;
    }
    a:hover {
      color: var(--accent-strong);
    }
    .container {
      padding: 2rem clamp(1.2rem, 2.5vw, 3rem) 3rem;
      max-width: 100%;
      margin: 0 auto;
      position: relative;
      z-index: 1;
    }
    header.shell-header {
      padding: 1rem clamp(1.4rem, 3vw, 3rem);
      border-bottom: 1px solid color-mix(in srgb, var(--border) 70%, transparent);
      display: flex;
      align-items: center;
      justify-content: space-between;
      background: color-mix(in srgb, var(--bg) 92%, transparent);
      backdrop-filter: blur(12px);
      position: sticky;
      top: 0;
      z-index: 30;
      gap: 1rem;
    }
    .brand {
      display: flex;
      align-items: center;
      gap: 0.9rem;
      flex-wrap: wrap;
    }
    .brand-mark {
      width: 44px;
      height: 44px;
      border-radius: 14px;
      background: linear-gradient(135deg, var(--accent), var(--accent-warm));
      display: flex;
      align-items: center;
      justify-content: center;
      color: var(--text-on-accent);
      font-weight: 700;
      font-size: 0.75rem;
      letter-spacing: 0.2em;
      text-transform: uppercase;
      box-shadow: var(--shadow-soft);
    }
    .brand-mark img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: 12px;
      display: block;
    }
    .brand-copy strong {
      display: block;
      font-size: 1.05rem;
      letter-spacing: 0.01em;
    }
    .brand-tagline {
      display: block;
      font-size: 0.85rem;
      color: var(--muted);
    }
    .flex {
      display: flex;
      gap: 1rem;
      align-items: center;
    }
    .shell-nav {
      display: flex;
      flex: 1;
      align-items: center;
      justify-content: space-between;
      gap: 1rem;
      flex-wrap: wrap;
    }
    .shell-nav-links {
      display: grid;
      grid-auto-flow: column;
      grid-auto-columns: minmax(140px, auto);
      gap: 0.65rem;
      align-items: stretch;
    }
    .shell-nav-link {
      display: flex;
      flex-direction: column;
      gap: 0.1rem;
      padding: 0.65rem 0.95rem;
      border-radius: var(--radius-md);
      border: 1px solid transparent;
      background: color-mix(in srgb, var(--surface) 90%, transparent);
      box-shadow: 0 12px 24px color-mix(in srgb, var(--text) 8%, transparent);
      font-size: 0.95rem;
      color: var(--text);
      transition: transform 0.2s ease, border-color 0.2s ease, background 0.2s ease;
      min-height: 58px;
    }
    .shell-nav-link:hover {
      transform: translateY(-1px);
      border-color: var(--accent-border);
    }
    .shell-nav-link.active {
      border-color: color-mix(in srgb, var(--accent) 60%, transparent);
      background: color-mix(in srgb, var(--accent) 8%, transparent);
    }
    .shell-nav-link-label {
      font-weight: 600;
    }
    .shell-nav-link-desc {
      font-size: 0.7rem;
      letter-spacing: 0.08em;
      text-transform: uppercase;
      color: var(--muted);
    }
    .shell-nav-actions {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      flex-wrap: wrap;
    }
    .shell-admin-link {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: var(--control-height);
      padding: 0 var(--control-padding-x);
      border-radius: var(--control-radius);
      border: 1px solid var(--border);
      background: color-mix(in srgb, var(--accent-warm) 8%, transparent);
      color: var(--accent-warm);
      font-size: var(--control-font);
      font-weight: 600;
      letter-spacing: 0.02em;
      transition: background 0.2s ease, transform 0.2s ease;
    }
    .shell-admin-link:hover {
      background: color-mix(in srgb, var(--accent-warm) 20%, transparent);
      transform: translateY(-1px);
    }
    .shell-project-switcher {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      font-size: 0.75rem;
      color: var(--muted);
      text-transform: uppercase;
      letter-spacing: 0.1em;
      white-space: nowrap;
    }
    .shell-project-switcher form { margin: 0; }
    .shell-project-select {
      min-width: 180px;
      height: var(--control-height);
      border-radius: var(--control-radius);
      border: 1px solid var(--border);
      background: var(--surface);
      color: var(--text);
      padding: 0 0.7rem;
      font-size: var(--control-font);
    }
    .shell-project-empty {
      display: inline-flex;
      align-items: center;
      height: var(--control-height);
      font-size: 0.72rem;
      color: var(--muted);
      background: color-mix(in srgb, var(--accent) 8%, transparent);
      padding: 0 0.7rem;
      border-radius: var(--control-radius);
    }
    .shell-user-actions {
      display: flex;
      align-items: center;
      gap: 0.6rem;
      flex-wrap: wrap;
    }
    .user-pill {
      display: inline-flex;
      align-items: center;
      gap: 0.45rem;
      height: var(--control-height);
      padding: 0 0.8rem;
      border-radius: var(--control-radius);
      background: var(--surface);
      border: 1px solid var(--border);
      font-size: var(--control-font);
      color: var(--muted);
    }
    .user-pill small {
      font-size: 0.68rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--muted);
    }
    .grid { display: grid; gap: 1rem; }
    .card {
      border: 1px solid var(--border);
      padding: 1rem 1.1rem;
      background: var(--surface);
      border-radius: var(--radius-lg);
      box-shadow: var(--shadow-card);
    }
    .card-title { font-weight: 600; margin-bottom: 0.4rem; }
    .card-body { color: var(--text); }
    .muted { color: var(--muted); }
    .pill-row { display: flex; flex-wrap: wrap; gap: 0.5rem; }
    .pill {
      padding: 0.2rem 0.6rem;
      border-radius: 999px;
      border: 1px solid var(--border);
      font-size: 0.75rem;
      color: var(--muted);
      background: color-mix(in srgb, var(--surface) 70%, transparent);
    }
    .badge {
      padding: 0.25rem 0.6rem;
      border-radius: 999px;
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--muted);
      border: 1px solid var(--border);
      background: var(--surface-2);
    }
    .badge-strong {
      color: var(--accent);
      border-color: var(--accent-border);
      background: color-mix(in srgb, var(--accent) 10%, transparent);
    }
    .role-pill {
      padding: 0.25rem 0.65rem;
      border-radius: 999px;
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      background: var(--warm-soft);
      color: var(--warm-text);
      border: 1px solid var(--warm-border);
    }
    .avatar {
      width: 38px;
      height: 38px;
      min-width: 38px;
      min-height: 38px;
      aspect-ratio: 1 / 1;
      border-radius: 50%;
      background: var(--surface-3);
      display: inline-flex;
      align-items: center;
      justify-content: center;
      font-size: 0.75rem;
      font-weight: 600;
      color: var(--accent);
      border: 1px solid color-mix(in srgb, var(--accent) 20%, transparent);
      overflow: hidden;
      flex: 0 0 auto;
    }
    .avatar img {
      width: 100%;
      height: 100%;
      object-fit: cover;
      border-radius: inherit;
      display: block;
    }
    .avatar.avatar-initials {
      background: var(--avatar-color, color-mix(in srgb, var(--accent) 18%, transparent));
      color: var(--text);
      border-color: color-mix(in srgb, var(--accent) 15%, transparent);
    }
    .avatar.avatar-image {
      background: var(--surface-3);
    }
    .avatar.small {
      width: 26px;
      height: 26px;
      min-width: 26px;
      min-height: 26px;
      font-size: 0.65rem;
    }
    .btn {
      display: inline-flex;
      align-items: center;
      justify-content: center;
      height: var(--control-height);
      background: var(--accent);
      color: var(--text-on-accent);
      padding: 0 var(--control-padding-x);
      border: 1px solid var(--accent);
      border-radius: var(--control-radius);
      cursor: pointer;
      font-weight: 600;
      font-size: var(--control-font);
      line-height: 1;
      transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
      box-shadow: 0 12px 24px color-mix(in srgb, var(--accent) 20%, transparent);
    }
    .btn:disabled {
      opacity: 0.6;
      cursor: not-allowed;
      transform: none;
      box-shadow: none;
    }
    .btn:hover {
      background: var(--accent-strong);
      transform: translateY(-1px);
    }
    .btn.secondary {
      background: transparent;
      color: var(--text);
      border-color: var(--border);
      box-shadow: none;
    }
    .btn.secondary:hover {
      border-color: var(--accent);
      color: var(--accent);
      background: color-mix(in srgb, var(--accent) 8%, transparent);
    }
    .btn.danger {
      background: var(--danger);
      border-color: var(--danger);
      color: var(--text-on-accent);
      box-shadow: 0 12px 24px color-mix(in srgb, var(--danger) 20%, transparent);
    }
    .btn.danger:hover {
      background: var(--danger-strong);
    }
    .status {
      padding: 0.25rem 0.6rem;
      border-radius: 999px;
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      border: 1px solid var(--border);
      background: var(--surface-2);
    }
    .status-backlog { color: var(--muted); }
    .status-in_progress { background: color-mix(in srgb, var(--accent) 14%, transparent); color: var(--accent-strong); border-color: color-mix(in srgb, var(--accent) 30%, transparent); }
    .status-test { background: var(--warm-soft); color: var(--warm-text); border-color: var(--warm-border); }
    .status-done { background: var(--success-soft); color: var(--success); border-color: var(--success-border); }
    .status-archived { background: var(--surface-3); color: var(--muted); }
    .status-ok { background: color-mix(in srgb, var(--success) 20%, transparent); color: var(--success); border-color: var(--success-border); }
    .status-error { background: var(--danger-soft); color: var(--danger); border-color: var(--danger-border); }
    form label {
      display: block;
      margin-top: 0.6rem;
      font-size: 0.85rem;
      color: var(--muted);
    }
    form input,
    form select,
    form textarea {
      width: 100%;
      padding: 0.55rem 0.7rem;
      background: var(--surface);
      color: var(--text);
      border: 1px solid var(--border);
      border-radius: var(--radius-sm);
      font-family: inherit;
      transition: border-color 0.2s ease, box-shadow 0.2s ease;
    }
    form input:focus,
    form select:focus,
    form textarea:focus {
      outline: none;
      border-color: color-mix(in srgb, var(--accent) 60%, transparent);
      box-shadow: 0 0 0 3px var(--accent-focus);
    }
    form button.btn,
    form input.btn,
    form .btn {
      margin-top: 0.6rem;
    }
    .inline-form .btn,
    .search-row .btn {
      margin-top: 0;
    }
    .select-search {
      display: grid;
      gap: 0.4rem;
    }
    .select-search input {
      padding: 0.45rem 0.7rem;
    }
    .assignee-picker,
    .blocked-picker {
      display: grid;
      gap: 0.4rem;
    }
    .tiptap-source { display: none; }
    .tiptap-toolbar {
      display: flex;
      gap: 0.4rem;
      flex-wrap: wrap;
      margin-bottom: 0.5rem;
    }
    .tiptap-button {
      border: 1px solid var(--border);
      background: var(--surface);
      color: var(--text);
      padding: 0.35rem 0.55rem;
      border-radius: 999px;
      font-size: 0.75rem;
      display: inline-flex;
      align-items: center;
      justify-content: center;
      gap: 0.35rem;
      min-width: 2.2rem;
      cursor: pointer;
    }
    .tiptap-button svg {
      width: 16px;
      height: 16px;
      stroke: currentColor;
      fill: none;
      stroke-width: 2;
      stroke-linecap: round;
      stroke-linejoin: round;
    }
    .tiptap-button.active {
      border-color: color-mix(in srgb, var(--accent) 60%, transparent);
      background: var(--accent-soft);
      color: var(--accent-strong);
    }
    .tiptap-editor {
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: var(--surface);
      padding: 0.6rem;
      min-height: 180px;
    }
    .tiptap-editor .ProseMirror {
      outline: none;
      min-height: 160px;
      white-space: pre-wrap;
    }
    .tiptap-editor[data-size="compact"] { min-height: 120px; }
    .tiptap-editor[data-size="compact"] .ProseMirror { min-height: 100px; }
    .tiptap-editor[data-size="large"] { min-height: 320px; }
    .tiptap-editor[data-size="large"] .ProseMirror { min-height: 300px; }
    .tiptap-editor .ProseMirror p {
      margin: 0 0 0.6rem 0;
    }
    .tiptap-editor .ProseMirror blockquote {
      border-left: 3px solid var(--accent-border);
      padding-left: 0.75rem;
      color: var(--muted);
      margin: 0 0 0.6rem 0;
    }
    .tiptap-editor .ProseMirror code,
    .rich-text code {
      background: color-mix(in srgb, var(--accent) 8%, transparent);
      padding: 0.1rem 0.35rem;
      border-radius: 6px;
      font-family: "Courier New", monospace;
      font-size: 0.85em;
    }
    .tiptap-editor .ProseMirror pre,
    .rich-text pre {
      background: color-mix(in srgb, var(--accent) 8%, transparent);
      padding: 0.75rem;
      border-radius: var(--radius-sm);
      overflow-x: auto;
    }
    .tiptap-editor .ProseMirror mark,
    .rich-text mark {
      background: color-mix(in srgb, var(--accent-warm) 35%, transparent);
      padding: 0.1rem 0.2rem;
      border-radius: 4px;
    }
    .mention {
      background: color-mix(in srgb, var(--accent) 12%, transparent);
      color: var(--accent-strong);
      border-radius: 999px;
      padding: 0.1rem 0.45rem;
      border: 1px solid color-mix(in srgb, var(--accent) 25%, transparent);
      text-decoration: none;
    }
    .mention-epic {
      background: color-mix(in srgb, var(--accent-warm) 18%, transparent);
      color: var(--warm-text);
      border-color: var(--warm-border);
    }
    .mention-task {
      background: color-mix(in srgb, var(--accent) 14%, transparent);
      color: var(--accent-strong);
      border-color: var(--accent-border);
    }
    .mention-page {
      background: color-mix(in srgb, var(--accent) 14%, transparent);
      color: var(--accent-strong);
      border-color: var(--accent-border);
    }
    .link-preview {
      display: grid;
      gap: 0.6rem;
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      background: var(--surface-2);
      padding: 0.7rem;
      margin: 0.7rem 0;
    }
    .link-preview-body {
      display: grid;
      gap: 0.25rem;
    }
    .link-preview-host {
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.08em;
      color: var(--muted);
    }
    .link-preview-title {
      font-weight: 600;
      color: var(--text);
      word-break: break-word;
    }
    .link-preview-description {
      font-size: 0.85rem;
      color: var(--muted);
    }
    .link-preview-thumb,
    .link-preview-media {
      width: 100%;
      border-radius: var(--radius-sm);
      border: 1px solid var(--border);
      background: var(--text);
      max-height: 240px;
      object-fit: cover;
    }
    .link-preview--file {
      background: color-mix(in srgb, var(--accent) 8%, transparent);
    }
    .link-preview--file .link-preview-title {
      color: var(--accent-strong);
    }
    .mention-menu {
      position: absolute;
      z-index: 60;
      background: var(--surface);
      border: 1px solid var(--border);
      border-radius: var(--radius-md);
      box-shadow: var(--shadow-soft);
      padding: 0.35rem;
      min-width: 200px;
    }
    .mention-item {
      width: 100%;
      text-align: left;
      background: transparent;
      border: none;
      padding: 0.35rem 0.5rem;
      border-radius: var(--radius-sm);
      cursor: pointer;
      font-size: 0.85rem;
      color: var(--text);
    }
    .mention-item.is-selected {
      background: var(--accent-soft);
      color: var(--accent-strong);
    }
    .modal-panel .tiptap-editor { min-height: 140px; }
    .modal-comment .tiptap-editor { min-height: 120px; }
    .rich-text p { margin: 0 0 0.6rem 0; }
    .rich-text ul,
    .rich-text ol {
      margin: 0.35rem 0 0.35rem 1.2rem;
      padding: 0;
    }
    .rich-text a {
      color: var(--accent-strong);
      text-decoration: underline;
    }
    .wiki-card { border-style: dashed; }
    .notice {
      padding: 0.75rem 1rem;
      border: 1px solid var(--accent-border);
      background: color-mix(in srgb, var(--accent) 8%, transparent);
      border-radius: var(--radius-md);
      margin: 1rem 0;
    }
    .board-header {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      flex-wrap: wrap;
      gap: 1.2rem;
      margin-bottom: 1.2rem;
    }
    .page-hero {
      display: flex;
      justify-content: space-between;
      align-items: flex-end;
      flex-wrap: wrap;
      gap: 1.5rem;
      margin-bottom: 1.5rem;
    }
    .page-hero h2 {
      font-size: 2.2rem;
    }
    .page-hero-actions {
      display: flex;
      gap: 0.75rem;
      flex-wrap: wrap;
    }
    .board-header h2 {
      font-size: 2rem;
    }
    .board-actions {
      display: flex;
      gap: 0.75rem;
      flex-wrap: wrap;
    }
    .inline-form { display: inline-flex; }
    .column-title .inline-form .btn.secondary { padding: 0.35rem 0.7rem; font-size: 0.75rem; height: auto; }
    .board-grid {
      display: grid;
      gap: 1rem;
      grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    }
    .roadmap-page {
      display: flex;
      flex-direction: column;
      gap: 1.5rem;
    }
    .roadmap-stage {
      --roadmap-day-width: 6px;
      border: 1px solid var(--border);
      border-radius: var(--radius-lg);
      background: var(--surface);
      box-shadow: var(--shadow-soft);
      padding: 0.75rem;
    }
    .roadmap-scroll {
      overflow: hidden;
      min-height: unset;
      max-height: none;
    }
    .roadmap-axis {
      position: relative;
      height: 38px;
      border-bottom: 1px solid var(--border);
      margin-bottom: 0.5rem;
      background: var(--surface);
      z-index: 2;
    }
    .roadmap-month {
      position: absolute;
      top: 0.45rem;
      font-size: 0.7rem;
      text-transform: uppercase;
      letter-spacing: 0.12em;
      color: var(--muted);
      white-space: nowrap;
    }
    .roadmap-month.is-hidden {
      opacity: 0;
      visibility: hidden;
    }
    .roadmap-grid {
      position: relative;
      display: grid;
      grid-auto-rows: 64px;
      row-gap: 0.4rem;
      padding: 0.4rem 0;
      background-image:
        repeating-linear-gradient(
          to right,
          color-mix(in srgb, var(--border) 40%, transparent) 0 1px,
          transparent 1px calc(var(--roadmap-day-width) * 7)
        );
      background-position: 0 0;
      background-attachment: local;
    }
    .roadmap-row {
      position: relative;
      min-height: 56px;
    }