:root {
        --ink: #0b0b0d;
        --paper: #edeae3;
        --paper-dim: #bdb9b0;
        --red: #edeae3;
        --gold: #c9a24b;
        --silver: #c7cdd4;
        --steel: #54565e;
        --steel-line: #2a2b2f;
        --panel: #141417;
        --panel-raised: #1b1b1f;
        --rise: 0.4s;
      }
      * {
        box-sizing: border-box;
      }
      html,
      body {
        margin: 0;
        padding: 0;
      }
      body {
        background: var(--ink);
        color: var(--paper);
        font-family: "Inter", sans-serif;
        -webkit-font-smoothing: antialiased;
        overflow-x: hidden;
        text-align: center;
      }
      ::selection {
        background: var(--red);
        color: var(--ink);
      }
 
      /* ---------- focus visibility ---------- */
      a:focus-visible,
      button:focus-visible,
      input:focus-visible,
      [tabindex]:focus-visible {
        outline: 2px solid var(--gold);
        outline-offset: 2px;
      }
 
      /* ---------- scrollbar (webkit) ---------- */
      ::-webkit-scrollbar {
        width: 10px;
        height: 10px;
      }
      ::-webkit-scrollbar-track {
        background: var(--ink);
      }
      ::-webkit-scrollbar-thumb {
        background: var(--steel-line);
        border-radius: 5px;
      }
 
      /* =================== HEADER =================== */
      .masthead {
        padding: 12px 5vw 10px;
        border-bottom: 1px solid var(--steel-line);
        display: flex;
        align-items: center;
        justify-content: space-between;
        gap: 16px;
        flex-wrap: wrap;
      }
      .masthead-title {
        font-family: "Oswald", sans-serif;
        font-weight: 700;
        letter-spacing: 0.01em;
        font-size: clamp(18px, 3vw, 28px);
        line-text: none;
        text-transform: uppercase;
        line-height: 1;
        margin: 0;
        text-align: left;
      }
      .masthead-title span {
        color: var(--paper-dim);
      }
      .masthead-sub {
        font-family: "JetBrains Mono", monospace;
        font-size: 10px;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--steel);
        margin-top: 3px;
        text-align: left;
      }
      .masthead-stat {
        text-align: right;
        font-family: "JetBrains Mono", monospace;
      }
      .masthead-stat .num {
        font-size: 20px;
        font-weight: 700;
        color: var(--gold);
        display: block;
        line-height: 1;
      }
      .masthead-stat .lbl {
        font-size: 9px;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--steel);
      }
 
      /* =================== TIMELINE SCRUBBER (signature element) =================== */
      .sticky-header {
        position: sticky;
        top: 0;
        z-index: 40;
      }
      .timeline-wrap {
        padding: 8px 5vw 6px;
        border-bottom: 1px solid var(--steel-line);
        background: var(--ink);
        -webkit-backdrop-filter: blur(6px);
        backdrop-filter: blur(6px);
        overflow: hidden;
        transition: max-height 0.3s ease, padding 0.3s ease, opacity 0.3s ease;
        max-height: 200px;
        opacity: 1;
      }
      .timeline-wrap.collapsed {
        max-height: 0;
        padding-top: 0;
        padding-bottom: 0;
        opacity: 0;
        border-bottom: none;
      }
      .timeline-head {
        display: flex;
        justify-content: space-between;
        align-items: center;
        margin-bottom: 6px;
        gap: 12px;
        flex-wrap: wrap;
      }
      .timeline-date {
        font-family: "Oswald", sans-serif;
        font-size: 16px;
        font-weight: 600;
        letter-spacing: 0.02em;
        text-align: left;
        flex: 1;
      }
      .timeline-date .yr {
        color: var(--paper);
      }
      .timeline-controls {
        display: flex;
        gap: 6px;
        align-items: center;
      }
      .tl-btn {
        font-family: "JetBrains Mono", monospace;
        background: var(--panel);
        border: 1px solid var(--steel-line);
        color: var(--paper);
        width: 28px;
        height: 28px;
        border-radius: 3px;
        cursor: pointer;
        display: flex;
        align-items: center;
        justify-content: center;
        font-size: 12px;
        transition:
          background 0.15s,
          border-color 0.15s;
      }
      .tl-btn:hover {
        background: var(--panel-raised);
        border-color: var(--gold);
      }
      .tl-btn.play {
        width: auto;
        padding: 0 10px;
        gap: 5px;
        font-size: 10px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
      }
      .tl-btn.play.active {
        border-color: var(--red);
        color: var(--paper);
        background: rgba(237, 234, 227, 0.1);
      }
      .tl-speed {
        font-family: "JetBrains Mono", monospace;
        font-size: 10px;
        color: var(--steel);
        background: var(--panel);
        border: 1px solid var(--steel-line);
        border-radius: 3px;
        padding: 4px 6px;
        height: 28px;
      }
 
      .scrubber {
        position: relative;
        height: 34px;
        cursor: pointer;
      }
      .scrubber-track {
        position: absolute;
        top: 15px;
        left: 0;
        right: 0;
        height: 3px;
        background: var(--steel-line);
        border-radius: 2px;
      }
      .scrubber-fill {
        position: absolute;
        top: 15px;
        left: 0;
        height: 3px;
        background: var(--red);
        border-radius: 2px;
        pointer-events: none;
      }
      .scrubber-tick {
        position: absolute;
        top: 12px;
        width: 2px;
        height: 8px;
        background: var(--steel-line);
        pointer-events: none;
      }
      .scrubber-tick.title-change {
        background: var(--gold);
        height: 11px;
        top: 10px;
        width: 3px;
      }
      .scrubber-handle {
        position: absolute;
        top: 6px;
        left: 0;
        width: 24px;
        height: 24px;
        border-radius: 50%;
        background: var(--paper);
        border: 3px solid var(--red);
        transform: translateX(-50%);
        box-shadow: 0 2px 8px rgba(0, 0, 0, 0.5);
        pointer-events: none;
        will-change: left;
      }
      .scrubber-labels {
        display: flex;
        justify-content: space-between;
        font-family: "JetBrains Mono", monospace;
        font-size: 10px;
        color: var(--steel);
        margin-top: 2px;
        letter-spacing: 0.05em;
      }
 
      /* =================== DIVISION TABS (fight-card lineup) =================== */
      .division-nav {
        padding: 6px 5vw;
        display: flex;
        gap: 4px;
        flex-wrap: wrap;
        justify-content: center;
        border-bottom: 1px solid var(--steel-line);
        background: var(--ink);
      }
      @media (max-width: 720px) {
        .division-nav {
          flex-wrap: nowrap;
          overflow-x: auto;
          justify-content: flex-start;
          padding: 6px 4vw;
          -webkit-overflow-scrolling: touch;
          scrollbar-width: none;
        }
        .division-nav::-webkit-scrollbar {
          display: none;
        }
      }
      .div-tab {
        font-family: "Oswald", sans-serif;
        text-transform: uppercase;
        font-size: 11px;
        letter-spacing: 0.02em;
        font-weight: 500;
        color: var(--steel);
        background: var(--panel);
        border: 1px solid var(--steel-line);
        padding: 5px 10px;
        border-radius: 3px;
        cursor: pointer;
        white-space: nowrap;
        transition:
          color 0.15s,
          border-color 0.15s,
          background 0.15s;
      }
      .div-tab:hover {
        color: var(--paper);
        border-color: var(--paper-dim);
      }
      .div-tab.active {
        color: var(--ink);
        background: var(--red);
        border-color: var(--red);
        font-weight: 600;
      }
 
      .era-badge {
        font-family: "JetBrains Mono", monospace;
        font-size: 9px;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        padding: 3px 7px;
        border-radius: 2px;
        font-weight: 700;
        flex-shrink: 0;
        white-space: nowrap;
      }
      .era-badge.media {
        color: var(--steel);
        border: 1px solid var(--steel);
      }
      .era-badge.meta {
        color: var(--ink);
        background: linear-gradient(120deg, #8ad6ff, #6f7bf7);
      }
 
      /* =================== MAIN STAGE =================== */
      .stage {
        padding: 30px 5vw 60px;
        max-width: 960px;
        margin: 0 auto;
        text-align: left;
      }
      .stage-head {
        display: flex;
        align-items: baseline;
        justify-content: space-between;
        gap: 10px;
        margin-bottom: 14px;
      }
      .stage-division-name {
        font-family: "Oswald", sans-serif;
        text-transform: uppercase;
        font-size: 20px;
        font-weight: 600;
        letter-spacing: 0.02em;
        color: var(--paper);
      }
      .stage-empty {
        font-family: "JetBrains Mono", monospace;
        color: var(--steel);
        font-size: 13px;
        padding: 60px 0;
        text-align: center;
        border: 1px dashed var(--steel-line);
        border-radius: 4px;
      }
 
      .champion-banner {
        display: flex;
        align-items: center;
        gap: 20px;
        padding: 22px 26px;
        background: linear-gradient(120deg, var(--panel-raised), var(--panel));
        border: 1px solid var(--steel-line);
        border-left: 4px solid var(--gold);
        border-radius: 4px;
        margin-bottom: 28px;
        flex-wrap: wrap;
        box-shadow: 0 0 18px rgba(201, 162, 75, 0.08);
      }
      .champion-banner .belt-icon {
        font-family: "Oswald", sans-serif;
        font-size: 11px;
        letter-spacing: 0.14em;
        color: var(--gold);
        border: 1px solid var(--gold);
        padding: 4px 10px;
        border-radius: 2px;
        text-transform: uppercase;
        flex-shrink: 0;
      }
      .champion-banner .champ-name {
        font-family: "Oswald", sans-serif;
        font-size: clamp(20px, 3vw, 28px);
        font-weight: 600;
        text-transform: uppercase;
        flex: 1;
        min-width: 160px;
      }
      .champion-banner .champ-meta {
        font-family: "JetBrains Mono", monospace;
        font-size: 11px;
        color: var(--steel);
        text-align: right;
      }
      .champion-banner.vacant {
        border-left-color: var(--steel);
        opacity: 0.7;
      }
      .champion-banner.vacant .belt-icon {
        color: var(--steel);
        border-color: var(--steel);
      }
      .champion-banner.p4p-banner {
        border-left-color: var(--gold);
      }
 
      /* ranking ladder */
      .ladder {
        display: flex;
        flex-direction: column;
        gap: 4px;
      }
      .rank-row {
        display: grid;
        grid-template-columns: 64px 1fr 90px;
        align-items: center;
        gap: 14px;
        padding: 13px 18px;
        background: var(--panel);
        border: 1px solid var(--steel-line);
        border-radius: 3px;
        transition:
          transform var(--rise) cubic-bezier(0.2, 0.8, 0.2, 1),
          background 0.2s,
          border-left-color 0.15s,
          padding-left 0.15s;
        position: relative;
        cursor: pointer;
      }
      .rank-row:hover {
        background: var(--panel-raised);
        border-left: 3px solid var(--red);
        padding-left: 15px;
      }
      .rank-row.champ-row {
        background: linear-gradient(
          90deg,
          rgba(201, 162, 75, 0.12),
          var(--panel) 40%
        );
        border-color: rgba(201, 162, 75, 0.35);
      }
      .rank-row.interim-row {
        background: linear-gradient(
          90deg,
          rgba(199, 205, 212, 0.1),
          var(--panel) 40%
        );
        border-color: rgba(199, 205, 212, 0.35);
      }
      .rank-row.interim-row .rank-num {
        color: var(--silver);
      }
      .rank-num {
        font-family: "JetBrains Mono", monospace;
        font-size: 20px;
        font-weight: 700;
        color: var(--steel);
        text-align: center;
      }
      .rank-row.champ-row .rank-num {
        color: var(--gold);
      }
      .fighter-name {
        font-family: "Oswald", sans-serif;
        font-size: 18px;
        font-weight: 600;
        letter-spacing: 0.01em;
        text-transform: uppercase;
        display: flex;
        align-items: center;
        gap: 10px;
        flex-wrap: wrap;
        min-width: 0;
      }
      .title-tag {
        font-family: "JetBrains Mono", monospace;
        font-size: 9.5px;
        letter-spacing: 0.08em;
        text-transform: uppercase;
        padding: 3px 7px;
        border-radius: 2px;
        font-weight: 700;
      }
      .title-tag.champion {
        background: var(--gold);
        color: var(--ink);
      }
      .title-tag.interim {
        background: linear-gradient(120deg, #a8b0b8, var(--silver));
        color: var(--ink);
        border: none;
      }
      .title-tag.bmf {
        background: #000;
        color: var(--paper);
        border: 1px solid var(--steel-line);
      }
 
      .move-indicator {
        font-family: "JetBrains Mono", monospace;
        font-size: 12px;
        text-align: center;
        font-weight: 700;
      }
      .move-indicator.up {
        color: #4fb477;
      }
      .move-indicator.down {
        color: #e3261f;
      }
      .move-indicator.new {
        color: var(--gold);
      }
      .move-indicator.flat {
        color: var(--steel);
      }
 
      /* legend */
      .legend {
        display: flex;
        gap: 16px;
        flex-wrap: wrap;
        padding: 6px 5vw;
        border-bottom: 1px solid var(--steel-line);
        font-family: "JetBrains Mono", monospace;
        font-size: 10px;
        color: var(--paper-dim);
        letter-spacing: 0.04em;
        align-items: center;
        justify-content: center;
      }

      /* collapse toggle bar */
      .header-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        gap: 8px;
        padding: 3px 5vw;
        border-bottom: 1px solid var(--steel-line);
        background: var(--ink);
        cursor: pointer;
        user-select: none;
      }
      .header-toggle-date {
        font-family: "JetBrains Mono", monospace;
        font-size: 11px;
        color: var(--paper);
        letter-spacing: 0.06em;
        display: none;
      }
      .header-toggle.collapsed .header-toggle-date {
        display: block;
      }
      .header-toggle-label {
        font-family: "JetBrains Mono", monospace;
        font-size: 9px;
        letter-spacing: 0.1em;
        text-transform: uppercase;
        color: var(--steel);
      }
      .header-toggle-arrow {
        font-size: 8px;
        color: var(--steel);
        transition: transform 0.25s ease;
      }
      .header-toggle.collapsed .header-toggle-arrow {
        transform: rotate(180deg);
      }
      .legend span {
        display: inline-flex;
        align-items: center;
        gap: 6px;
      }
      .legend .sw {
        width: 9px;
        height: 9px;
        border-radius: 50%;
        display: inline-block;
      }
 
      /* =================== FIGHTER PROGRESSION DRAWER =================== */
      .drawer-overlay {
        position: fixed;
        inset: 0;
        background: rgba(0, 0, 0, 0.6);
        z-index: 90;
        opacity: 0;
        pointer-events: none;
        transition: opacity 0.25s;
      }
      .drawer-overlay.open {
        opacity: 1;
        pointer-events: auto;
      }
      .drawer {
        position: fixed;
        top: 0;
        right: 0;
        bottom: 0;
        width: min(560px, 92vw);
        background: var(--panel);
        border-left: 1px solid var(--steel-line);
        z-index: 91;
        transform: translateX(100%);
        transition: transform 0.3s cubic-bezier(0.2, 0.8, 0.2, 1);
        display: flex;
        flex-direction: column;
        padding: 28px 28px 20px;
        overflow-y: auto;
      }
      .drawer.open {
        transform: translateX(0);
      }
      .drawer-close {
        align-self: flex-end;
        background: none;
        border: 1px solid var(--steel-line);
        color: var(--paper);
        width: 32px;
        height: 32px;
        border-radius: 50%;
        cursor: pointer;
        font-size: 16px;
        margin-bottom: 10px;
      }
      .drawer-name {
        font-family: "Oswald", sans-serif;
        font-size: 28px;
        text-transform: uppercase;
        font-weight: 600;
        margin: 0 0 4px;
      }
      .drawer-div {
        font-family: "JetBrains Mono", monospace;
        font-size: 11px;
        color: var(--steel);
        letter-spacing: 0.1em;
        text-transform: uppercase;
        margin-bottom: 24px;
      }
      .chart-wrap {
        background: var(--ink);
        border: 1px solid var(--steel-line);
        border-radius: 4px;
        padding: 16px 10px 6px;
        margin-bottom: 20px;
      }
      .drawer-stats {
        display: grid;
        grid-template-columns: 1fr 1fr 1fr;
        gap: 10px;
        margin-bottom: 20px;
      }
      .dstat {
        background: var(--ink);
        border: 1px solid var(--steel-line);
        border-radius: 4px;
        padding: 12px;
        text-align: center;
      }
      .dstat .v {
        font-family: "JetBrains Mono", monospace;
        font-size: 20px;
        font-weight: 700;
        color: var(--gold);
      }
      .dstat .l {
        font-family: "JetBrains Mono", monospace;
        font-size: 9.5px;
        color: var(--steel);
        text-transform: uppercase;
        letter-spacing: 0.08em;
        margin-top: 3px;
      }
      .drawer-log-title {
        font-family: "JetBrains Mono", monospace;
        font-size: 10.5px;
        color: var(--steel);
        text-transform: uppercase;
        letter-spacing: 0.1em;
        margin-bottom: 10px;
      }
      .drawer-log {
        display: flex;
        flex-direction: column;
        gap: 1px;
        font-family: "JetBrains Mono", monospace;
        font-size: 11.5px;
      }
      .drawer-log-row {
        display: grid;
        grid-template-columns: 90px 40px 1fr;
        gap: 10px;
        padding: 7px 4px;
        border-bottom: 1px solid var(--steel-line);
        color: var(--paper-dim);
        align-items: center;
      }
      .drawer-log-row .rk {
        color: var(--paper);
        font-weight: 700;
      }
      .drawer-log-row .delta-up {
        color: #4fb477;
      }
      .drawer-log-row .delta-down {
        color: #e3261f;
      }
 
      /* =================== EMPTY-DIVISION STATE =================== */
      .not-established {
        font-family: "JetBrains Mono", monospace;
        color: var(--steel);
        font-size: 13px;
        text-align: center;
        padding: 50px 20px;
        border: 1px dashed var(--steel-line);
        border-radius: 4px;
        line-height: 1.7;
      }
      .not-established b {
        color: var(--paper-dim);
      }
 
      /* =================== RESPONSIVE =================== */
      @media (max-width: 720px) {
        .rank-row {
          grid-template-columns: 40px 1fr 60px;
        }
        .stage {
          padding: 20px 4vw 50px;
        }
        .masthead {
          flex-direction: column;
          align-items: center;
        }
        .masthead-title {
          text-align: center;
        }
        .masthead-sub {
          text-align: center;
        }
        .masthead-stat {
          text-align: center;
        }
      }
 
      @media (prefers-reduced-motion: reduce) {
        * {
          transition-duration: 0.01ms !important;
          animation-duration: 0.01ms !important;
        }
      }
 
      .footer-note {
        font-family: "JetBrains Mono", monospace;
        font-size: 10.5px;
        color: var(--paper-dim);
        text-align: center;
        padding: 30px 5vw 50px;
        letter-spacing: 0.04em;
      }