:root{
    --paper:#f4eee2;
    --paper2:#ece3d2;
    --card:rgba(247,239,223,.9);
    --ink:#2c2823;
    --ink2:#6f675c;
    --ink3:#9a9183;
    --line:#d6cab2;
    --line2:#c3b6996e;
    --accent:#c2603e;       /* warm clay */
    --accent-soft:#ecd6c8;
    --blue:#46627f;         /* sparing, for the "0101001" digital note */
    --hatch:rgba(44,40,35,.07);
    --shadow:0 14px 34px -18px rgba(44,40,35,.45);
    --accent-ink:#7a3a22;
    --final-grad:linear-gradient(135deg,#efe3d6,#f4ece0);
    --stamp-bg:#eef2f6;
    --f-head: Caveat, cursive;
    --f-body: "Patrick Hand", ui-rounded, system-ui, sans-serif;
    --f-ui: Gaegu, sans-serif;
    --grain-url: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='180' height='180'%3E%3Cfilter id='g'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23g)'/%3E%3C/svg%3E");
    --tex-image: var(--grain-url); --tex-size:170px; --tex-opacity:0; --tex-blend:multiply;
    --page-bg:
      linear-gradient(rgba(244,235,217,.16), rgba(244,235,217,.16)),
      url("textures/kraft.png") center / 520px repeat fixed,
      #d8c3a0;
  }
  [data-theme="stone"]{
    --paper:#bcc0b9;--paper2:#b0b4ac;--card:rgba(238,240,236,.9);--ink:#2a2d29;--ink2:#585c54;--ink3:#878b81;
    --line:#b6bab1;--line2:#b6bab1aa;--accent:#c2603e;--accent-soft:#e7d8cf;--accent-ink:#7e3b22;--blue:#4f6b8a;
    --hatch:rgba(42,45,41,.07);--final-grad:linear-gradient(135deg,#dcd9d2,#cdd3cf);--stamp-bg:#dde0e6;
    --f-head:"Space Grotesk",sans-serif;--f-body:"Nunito",sans-serif;--f-ui:"Space Mono",monospace;
    --page-bg:
      linear-gradient(rgba(232,234,230,.22), rgba(232,234,230,.22)),
      url("textures/stone.png") center / 540px repeat fixed,
      #bcc0b9;
  }
  [data-theme="night"]{
    --paper:#0c0f17;--paper2:#161a26;--card:rgba(18,22,34,.84);--ink:#e9ecf6;--ink2:#aab2c8;--ink3:#737c95;
    --line:#2a3145;--line2:#2a3145aa;--accent:#e8b15a;--accent-soft:#2a2a3f;--accent-ink:#f5cd8e;--blue:#8fb3e6;
    --hatch:rgba(233,236,246,.06);--final-grad:linear-gradient(135deg,#243154,#3a2c4f);--stamp-bg:#23304e;
    --f-head:"Newsreader",serif;--f-body:"Gaegu",sans-serif;--f-ui:"Gaegu",sans-serif;
    --shadow:0 18px 44px -18px rgba(0,0,0,.7);
    --page-bg:
      linear-gradient(rgba(8,10,18,.35), rgba(8,10,18,.45)),
      url("textures/night.png") center / cover fixed no-repeat,
      #0a0c12;
  }
  [data-theme="linen"]{
    --paper:#e8e1d2;--paper2:#ded5c2;--card:rgba(245,240,229,.9);--ink:#34302a;--ink2:#6a6356;--ink3:#9c937f;
    --line:#cfc6b0;--line2:#cfc6b0aa;--accent:#b06a43;--accent-soft:#ecddca;--accent-ink:#7e4524;--blue:#7d864f;
    --hatch:rgba(52,48,42,.06);--final-grad:linear-gradient(135deg,#ead9c6,#e4e2cf);--stamp-bg:#e6e2cf;
    --f-head:"Newsreader",serif;--f-body:"Nunito",sans-serif;--f-ui:"Gaegu",sans-serif;
    --page-bg:
      linear-gradient(rgba(245,240,229,.18), rgba(245,240,229,.18)),
      url("textures/linen.png") center / 440px repeat fixed,
      #e8e1d2;
  }
  [data-theme="wood"]{
    --paper:#e2cfa8;--paper2:#d8c39a;--card:rgba(246,237,219,.9);--ink:#3a2c18;--ink2:#6e5a3a;--ink3:#9c875f;
    --line:#d3bd92;--line2:#d3bd92aa;--accent:#5a7a3c;--accent-soft:#e7ddc5;--accent-ink:#3f5a2a;--blue:#9a6a32;
    --hatch:rgba(58,44,24,.06);--final-grad:linear-gradient(135deg,#ecdcbd,#dfe6c9);--stamp-bg:#e3e7cf;
    --f-head:"Newsreader",serif;--f-body:"Patrick Hand",ui-rounded,system-ui,sans-serif;--f-ui:"Gaegu",sans-serif;
    --page-bg:
      linear-gradient(rgba(243,233,213,.16), rgba(243,233,213,.16)),
      url("textures/wood.png") center / 720px repeat fixed,
      #e2cfa8;
  }
  [data-theme="marble"]{
    --paper:#173329;--paper2:#1d3e32;--card:rgba(22,50,40,.82);--ink:#eef4ee;--ink2:#bcd0c4;--ink3:#85a191;
    --line:#2f5446;--line2:#2f5446aa;--accent:#d8b75a;--accent-soft:#244b3c;--accent-ink:#f0d792;--blue:#83c0a4;
    --hatch:rgba(238,244,238,.06);--final-grad:linear-gradient(135deg,#234d3d,#2d4f4a);--stamp-bg:#244b3c;
    --f-head:"Newsreader",serif;--f-body:"Nunito",sans-serif;--f-ui:"Gaegu",sans-serif;
    --shadow:0 18px 44px -18px rgba(0,0,0,.6);
    --page-bg:
      linear-gradient(rgba(15,40,32,.30), rgba(15,40,32,.42)),
      url("textures/marble.png") center / cover fixed no-repeat,
      #173329;
  }
  /* mood switcher */
  .themes{display:flex;align-items:center;gap:7px;flex-wrap:wrap;border-left:2px dashed var(--line);padding-left:14px}
  .tlabel{font-family:var(--f-ui);font-weight:700;font-size:11px;letter-spacing:.14em;text-transform:uppercase;color:var(--ink3)}
  .themebtn{font-family:var(--f-ui);font-weight:700;font-size:13px;border:1.5px solid var(--line);background:transparent;color:var(--ink2);padding:6px 11px;border-radius:10px;cursor:pointer;display:flex;align-items:center;gap:7px;line-height:1;transition:.14s}
  .themebtn:hover{border-color:var(--ink3);color:var(--ink)}
  .themebtn .sw{width:13px;height:13px;border-radius:4px;border:1.5px solid var(--ink)}
  .themebtn.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
  /* Dina's margin thoughts — real content, always visible */
  .thought{
    font-family:var(--f-head);font-weight:500;font-size:18px;line-height:1.18;
    color:var(--ink2);margin-top:11px;padding:6px 0 2px 26px;position:relative;max-width:48ch;
  }
  .thought::before{content:"✎";position:absolute;left:2px;top:6px;color:var(--accent);font-size:15px;font-family:var(--f-ui)}
  .dpanel .thought{margin-top:14px;border-top:1.5px dashed var(--line);padding-top:12px}
  *{box-sizing:border-box}
  html,body{margin:0}
  body{
    background:var(--page-bg);
    color:var(--ink);
    font-family:var(--f-body);
    -webkit-font-smoothing:antialiased;
    line-height:1.5;
  }
  body::before{
    content:"";position:fixed;inset:0;pointer-events:none;z-index:60;
    background-image:var(--tex-image);background-size:var(--tex-size);
    opacity:var(--tex-opacity);mix-blend-mode:var(--tex-blend);
  }
  .wrap{max-width:1180px;margin:0 auto;padding:0 26px 120px}

  /* ---------- header ---------- */
  header.top{padding:46px 0 18px}
  .kicker{
    font-family:var(--f-ui);font-weight:700;letter-spacing:.22em;
    text-transform:uppercase;font-size:13px;color:var(--accent);
    display:flex;align-items:center;gap:12px;
  }
  .kicker::after{content:"";flex:1;height:0;border-top:2px dashed var(--line)}
  h1.title{
    font-family:var(--f-head);font-weight:700;
    font-size:clamp(38px,6vw,72px);line-height:.96;margin:.16em 0 .1em;
    letter-spacing:.5px;
  }
  h1.title .u{color:var(--accent);position:relative;white-space:nowrap}
  .lede{font-size:clamp(16px,1.6vw,19px);color:var(--ink2);max-width:62ch}
  .lede b{color:var(--ink);font-weight:400;border-bottom:2px solid var(--accent-soft)}
  .chips{display:flex;flex-wrap:wrap;gap:9px;margin-top:18px}
  .chip{
    font-family:var(--f-ui);font-weight:700;font-size:13px;
    border:1.5px solid var(--line);background:var(--card);
    padding:5px 12px;border-radius:20px;color:var(--ink2);
    display:inline-flex;align-items:center;gap:7px;
  }
  .chip .dot{width:8px;height:8px;border-radius:50%;background:var(--accent)}
  .chip.award .dot{background:var(--blue)}

  /* ---------- toolbar ---------- */
  .toolbar{
    position:sticky;top:0;z-index:40;margin-top:26px;
    background:linear-gradient(var(--paper) 70%, transparent);
    padding:12px 0 14px;
  }
  .toolbar-inner{
    display:flex;align-items:center;gap:14px;flex-wrap:wrap;
    background:var(--card);border:2px solid var(--ink);border-radius:16px;
    padding:9px 12px;box-shadow:var(--shadow);
  }
  .tabs{display:flex;gap:8px;flex-wrap:wrap;flex:1;min-width:240px}
  .tab{
    font-family:var(--f-ui);font-weight:700;font-size:15px;
    border:1.5px solid var(--line);background:transparent;color:var(--ink2);
    padding:8px 14px;border-radius:11px;cursor:pointer;transition:.14s;
    display:flex;align-items:center;gap:9px;line-height:1.1;
  }
  .tab .n{
    width:22px;height:22px;border-radius:7px;display:grid;place-items:center;
    background:var(--paper2);color:var(--ink);font-size:13px;flex:none;
  }
  .tab:hover{border-color:var(--ink3);color:var(--ink)}
  .tab[aria-selected="true"]{
    background:var(--ink);color:var(--paper);border-color:var(--ink);
  }
  .tab[aria-selected="true"] .n{background:var(--accent);color:#fff}
  .toggle{
    display:flex;align-items:center;gap:9px;font-family:var(--f-ui);
    font-weight:700;font-size:14px;color:var(--ink2);cursor:pointer;
    border-left:2px dashed var(--line);padding-left:14px;user-select:none;
  }
  .switch{
    width:42px;height:24px;border-radius:20px;background:var(--accent);
    border:2px solid var(--ink);position:relative;transition:.16s;flex:none;
  }
  .switch::after{
    content:"";position:absolute;top:1px;left:19px;width:18px;height:18px;
    border-radius:50%;background:#fff;transition:.16s;
  }
  body.hide-notes .switch{background:var(--paper2)}
  body.hide-notes .switch::after{left:1px}

  /* ---------- concept scaffolding ---------- */
  .concept{display:none;animation:fade .3s ease}
  .concept.on{display:block}
  @keyframes fade{from{opacity:0;transform:translateY(6px)}to{opacity:1;transform:none}}

  .concept-head{display:flex;gap:22px;align-items:flex-start;flex-wrap:wrap;margin:14px 0 22px}
  .concept-head .lead{flex:1;min-width:300px}
  .concept-name{font-family:var(--f-head);font-weight:700;font-size:clamp(30px,4vw,44px);line-height:1;margin:0 0 6px}
  .concept-name small{font-family:var(--f-ui);font-weight:700;font-size:14px;color:var(--accent);display:block;letter-spacing:.16em;text-transform:uppercase;margin-bottom:4px}
  .concept-desc{color:var(--ink2);font-size:16.5px;max-width:60ch}
  .reads{display:flex;gap:8px;flex-wrap:wrap;margin-top:14px}
  .read{font-family:var(--f-ui);font-weight:700;font-size:13px;background:var(--accent-soft);color:var(--accent-ink);border-radius:8px;padding:5px 11px;display:inline-flex;gap:6px;align-items:center}
  .read::before{content:"✓";font-weight:700}

  /* ---------- browser frame ---------- */
  .frame{
    border:2.5px solid var(--ink);border-radius:16px;overflow:hidden;
    background:var(--card);box-shadow:var(--shadow);
  }
  .frame + .frame{margin-top:26px}
  .frame-bar{
    display:flex;align-items:center;gap:8px;padding:9px 14px;
    background:var(--paper2);border-bottom:2px solid var(--ink);
  }
  .frame-bar .d{width:11px;height:11px;border-radius:50%;border:1.5px solid var(--ink);background:transparent}
  .frame-url{
    margin-left:10px;font-family:var(--f-ui);font-weight:700;font-size:13px;color:var(--ink2);
    background:var(--card);border:1.5px solid var(--line);border-radius:18px;
    padding:3px 14px;flex:1;max-width:340px;
  }
  .frame-tagline{margin-left:auto;font-family:var(--f-ui);font-weight:700;font-size:12px;color:var(--ink3);letter-spacing:.05em}
  .frame-canvas{padding:30px;position:relative}

  .frame-label{
    font-family:var(--f-head);font-weight:700;color:var(--accent);font-size:21px;
    display:flex;align-items:center;gap:10px;margin:0 0 4px;
  }
  .frame-label::before{content:"";width:26px;border-top:2.5px solid var(--accent)}

  /* ---------- generic wireframe atoms ---------- */
  .ph{
    background:
      repeating-linear-gradient(45deg,var(--hatch) 0 1px,transparent 1px 11px),
      var(--paper);
    border:1.6px dashed var(--ink3);border-radius:7px;
    display:flex;align-items:center;justify-content:center;text-align:center;
    color:var(--ink3);font-family:var(--f-ui);font-weight:700;font-size:13px;
    padding:8px;line-height:1.2;position:relative;
  }
  .ph.solid{background:var(--paper2);border-style:solid;border-color:var(--line)}
  .barline{height:9px;border-radius:6px;background:var(--line2);margin:7px 0}
  .barline.s{width:64%}.barline.m{width:84%}.barline.l{width:96%}
  .bars .barline:last-child{margin-bottom:0}
  .pillbtn{
    font-family:var(--f-ui);font-weight:700;font-size:14px;border-radius:11px;
    padding:9px 16px;display:inline-flex;align-items:center;gap:8px;line-height:1;
  }
  .pillbtn.solid{background:var(--ink);color:var(--paper);border:2px solid var(--ink)}
  .pillbtn.ghost{background:transparent;color:var(--ink);border:2px solid var(--ink)}
  .pillbtn.clay{background:var(--accent);color:#fff;border:2px solid #8f4225}
  .h-title{font-family:var(--f-head);font-weight:700;line-height:.98;letter-spacing:.5px}
  .mono{font-family:var(--f-ui);font-weight:700;letter-spacing:.04em}
  .quote{
    font-family:var(--f-head);font-weight:600;color:var(--ink);font-size:clamp(20px,2.4vw,30px);
    line-height:1.18;border-left:4px solid var(--accent);padding-left:16px;
  }
  .quote .ru{color:var(--accent)}
  .stamp{
    display:inline-flex;align-items:center;gap:8px;font-family:var(--f-ui);font-weight:700;
    font-size:12.5px;color:var(--blue);border:2px solid var(--blue);border-radius:10px;
    padding:6px 11px;transform:rotate(-2.5deg);background:var(--stamp-bg);letter-spacing:.04em;
  }
  .stamp .star{color:var(--blue)}

  /* ---------- annotations ---------- */
  .note{
    position:absolute;font-family:var(--f-head);font-weight:600;color:var(--accent);
    font-size:18px;line-height:1.05;max-width:150px;z-index:6;pointer-events:none;
    transition:opacity .2s;
  }
  .note.blue{color:var(--blue)}
  .note .arr{font-size:24px;display:inline-block}
  body.hide-notes .note{opacity:0}
  .pin{position:absolute;width:11px;height:11px;border-radius:50%;background:var(--accent);border:2px solid #8f4225;z-index:5}

  /* ============ CONCEPT A — DIARY ============ */
  .diary{display:grid;grid-template-columns:1fr;gap:0;max-width:600px;margin:0 auto;position:relative}
  .diary-hd{text-align:center;margin-bottom:6px}
  .diary-hd .pj{font-family:var(--f-head);font-weight:700;font-size:42px;line-height:1}
  .diary-hd .ru{color:var(--accent)}
  .diary-hd .meta{font-family:var(--f-ui);font-weight:700;font-size:13px;color:var(--ink3);letter-spacing:.06em}
  .thread{position:relative;padding-left:30px;margin-top:18px}
  .thread::before{content:"";position:absolute;left:7px;top:6px;bottom:30px;border-left:2.5px dashed var(--line)}
  .beat{position:relative;margin-bottom:22px}
  .beat::before{content:"";position:absolute;left:-30px;top:3px;width:15px;height:15px;border-radius:50%;background:var(--card);border:2.5px solid var(--accent)}
  .beat.client::before{border-color:var(--blue)}
  .beat .who{font-family:var(--f-ui);font-weight:700;font-size:12px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink3);margin-bottom:5px}
  .beat.client .who{color:var(--blue)}
  .bubble{
    background:var(--paper2);border:1.6px solid var(--line);border-radius:4px 14px 14px 14px;
    padding:13px 15px;
  }
  .beat.her .bubble{background:#fbf6ee;border-color:var(--accent-soft);border-radius:14px 4px 14px 14px}
  .sketchrow{display:flex;gap:9px;margin-top:10px;flex-wrap:wrap}
  .sketchrow .ph{width:120px;height:90px;font-size:11px}
  .finalwrap{margin-top:6px}
  .finalwrap .ph{height:230px;border-style:solid;border-color:var(--accent);background:var(--final-grad);font-size:14px;color:var(--accent)}
  .ph.imgph{background-size:cover;background-position:center;background-repeat:no-repeat;border-style:solid;border-color:var(--line);color:transparent;font-size:0}
  .artshot{margin-top:2px;border:1.6px solid var(--line);border-radius:9px;overflow:hidden;background:var(--paper2)}
  .artshot img{display:block;width:100%;height:auto}
  .diary-cta{margin-top:18px;display:flex;gap:12px;align-items:center;justify-content:center;flex-wrap:wrap;background:var(--paper2);border:2px dashed var(--accent);border-radius:14px;padding:16px}
  .diary-cta b{font-family:var(--f-head);font-weight:700;font-size:24px}

  /* index variant (small) */
  .idx-letters{display:flex;flex-direction:column;gap:10px;max-width:560px;margin:6px auto 0}
  .letter-row{display:flex;align-items:center;gap:14px;background:var(--paper2);border:1.6px solid var(--line);border-radius:10px;padding:11px 14px}
  .letter-row .ph{width:58px;height:44px;flex:none}
  .letter-row .lt{flex:1}
  .letter-row .lt .t{font-family:var(--f-head);font-weight:700;font-size:21px;line-height:1}
  .letter-row .lt .s{font-family:var(--f-ui);font-weight:400;font-size:12.5px;color:var(--ink3)}
  .letter-row .date{font-family:var(--f-ui);font-weight:700;font-size:12px;color:var(--ink3)}

  /* ============ CONCEPT B — REEL ============ */
  .reel-stage{position:relative}
  .reel{
    display:flex;gap:0;overflow-x:auto;padding:14px 2px 22px;scroll-snap-type:x proximity;
    border-top:3px dashed var(--ink);border-bottom:3px dashed var(--ink);
    background:repeating-linear-gradient(90deg,transparent 0 38px,rgba(44,40,35,.04) 38px 40px);
  }
  .cell{
    min-width:230px;width:230px;scroll-snap-align:center;padding:0 14px;flex:none;
    border-right:2px dashed var(--line);position:relative;
  }
  .cell:last-child{border-right:none}
  .cell .step{font-family:var(--f-ui);font-weight:700;font-size:12px;color:var(--accent);letter-spacing:.14em;text-transform:uppercase}
  .cell .step .num{color:var(--ink3)}
  .cell .cap{font-family:var(--f-head);font-weight:700;font-size:22px;line-height:1;margin:3px 0 9px}
  .cell .ph{height:140px}
  .cell .note-sm{font-family:var(--f-ui);font-weight:400;font-size:12.5px;color:var(--ink2);margin-top:8px;line-height:1.35}
  .cell.final .ph{border-style:solid;border-color:var(--accent);background:var(--final-grad);color:var(--accent);font-weight:700}
  .cell.final .cap{color:var(--accent)}
  .reel-rail{display:flex;gap:7px;justify-content:center;margin-top:8px}
  .reel-rail .seg{width:30px;height:6px;border-radius:4px;background:var(--line)}
  .reel-rail .seg.on{background:var(--accent)}
  .scrollcue{font-family:var(--f-head);font-weight:600;color:var(--accent);font-size:19px;text-align:right;margin:4px 4px -4px}
  /* shelf index */
  .shelf{display:flex;flex-direction:column;gap:14px;margin-top:6px}
  .shelf .strip{display:flex;align-items:center;gap:12px}
  .shelf .strip .t{font-family:var(--f-head);font-weight:700;font-size:20px;min-width:150px}
  .shelf .mini{display:flex;gap:6px;flex:1;overflow:hidden;border:1.5px dashed var(--line);border-radius:8px;padding:7px;background:var(--paper2)}
  .shelf .mini .ph{height:40px;flex:1;min-width:0;font-size:10px}

  /* ============ CONCEPT C — PROCESS BOOK ============ */
  .book{
    display:grid;grid-template-columns:1fr 1fr;max-width:880px;margin:0 auto;position:relative;
    background:var(--card);border:2px solid var(--ink);border-radius:8px;overflow:hidden;
    box-shadow:0 22px 50px -26px rgba(44,40,35,.55);
  }
  .book::before{content:"";position:absolute;left:50%;top:0;bottom:0;width:26px;transform:translateX(-50%);
    background:linear-gradient(90deg,transparent,rgba(44,40,35,.12),transparent);z-index:3;pointer-events:none}
  .page{padding:26px 28px;min-height:430px}
  .page.left{border-right:1.5px dashed var(--line);background:linear-gradient(90deg,#fbf8f1,#f6f0e6)}
  .page.right{background:linear-gradient(-90deg,#fbf8f1,#f6f0e6)}
  .chapter{font-family:var(--f-ui);font-weight:700;font-size:12px;letter-spacing:.18em;text-transform:uppercase;color:var(--accent)}
  .page .pj{font-family:var(--f-head);font-weight:700;font-size:34px;line-height:1;margin:2px 0 12px}
  .page .pj .ru{color:var(--accent)}
  .ledger{margin-top:14px;border:1.6px solid var(--line);border-radius:9px;background:var(--paper2);padding:11px 13px;font-family:var(--f-ui);font-weight:700;font-size:13px;color:var(--ink2)}
  .ledger .row{display:flex;justify-content:space-between;padding:3px 0;border-bottom:1px dashed var(--line)}
  .ledger .row:last-child{border-bottom:none}
  .ladder{display:flex;flex-direction:column;gap:9px}
  .ladder .rung{display:flex;align-items:center;gap:11px}
  .ladder .rung .ph{width:60px;height:46px;flex:none;font-size:10px}
  .ladder .rung .lab{font-family:var(--f-ui);font-weight:700;font-size:13px;color:var(--ink2)}
  .ladder .rung.final .ph{width:100%;height:150px;border-style:solid;border-color:var(--accent);background:var(--final-grad);color:var(--accent)}
  .ladder .rung.final{flex-direction:column;align-items:stretch;gap:5px}
  .book-tabs{display:flex;gap:7px;justify-content:center;margin-top:14px;flex-wrap:wrap}
  .book-tabs .bt{font-family:var(--f-ui);font-weight:700;font-size:12.5px;border:1.5px solid var(--line);border-radius:7px;padding:5px 11px;color:var(--ink2);background:var(--card)}
  .book-tabs .bt.on{background:var(--ink);color:var(--paper);border-color:var(--ink)}
  .pageno{position:absolute;bottom:10px;font-family:var(--f-ui);font-weight:700;font-size:12px;color:var(--ink3)}
  .pageno.l{left:24px}.pageno.r{right:24px}
  /* contents index */
  .contents{max-width:560px;margin:6px auto 0;border:1.6px solid var(--line);border-radius:10px;background:var(--paper2);padding:16px 18px}
  .contents .ct-h{font-family:var(--f-head);font-weight:700;font-size:26px;text-align:center;margin-bottom:8px}
  .contents .ci{display:flex;align-items:baseline;gap:10px;padding:7px 0;border-bottom:1px dashed var(--line);font-family:var(--f-ui);font-weight:700;font-size:15px}
  .contents .ci:last-child{border-bottom:none}
  .contents .ci .dots{flex:1;border-bottom:2px dotted var(--ink3);transform:translateY(-3px)}
  .contents .ci .pg{color:var(--ink3)}
  .contents .ci .em{color:var(--accent)}

  /* ============ CONCEPT D — REEL-DIARY (scrub + deep panel) ============ */
  .rd-hd{text-align:center;margin-bottom:4px}
  .rd-hd .pj{font-family:var(--f-head);font-weight:700;font-size:34px;line-height:1}
  .rd-hd .ru{color:var(--accent)}
  .rd-hd .meta{font-family:var(--f-ui);font-weight:700;font-size:12px;color:var(--ink3);letter-spacing:.06em}
  .dscrub{display:flex;gap:8px;overflow-x:auto;padding:10px 2px 12px;scroll-snap-type:x proximity}
  .dcell{
    min-width:118px;width:118px;flex:none;scroll-snap-align:center;cursor:pointer;
    border:1.6px solid var(--line);border-radius:9px;background:var(--paper2);padding:8px;transition:.14s;
  }
  .dcell:hover{border-color:var(--ink3)}
  .dcell.on{border-color:var(--ink);background:var(--card);box-shadow:0 8px 18px -12px rgba(44,40,35,.5)}
  .dcell .st{font-family:var(--f-ui);font-weight:700;font-size:10.5px;letter-spacing:.1em;text-transform:uppercase;color:var(--accent)}
  .dcell .st .num{color:var(--ink3)}
  .dcell .ph{height:48px;margin-top:5px;font-size:10px}
  .dcell.on.fin .ph,.dcell.fin .ph{border-color:var(--accent);color:var(--accent)}
  .dcell .ct{font-family:var(--f-head);font-weight:700;font-size:16px;line-height:1;margin-top:5px}
  .dpanel{
    display:grid;grid-template-columns:1.05fr 1fr;gap:20px;margin-top:6px;
    border:2px solid var(--ink);border-radius:14px;background:var(--card);padding:20px;
  }
  .dpanel .art .ph{height:250px;font-size:14px}
  .dpanel .art.fin .ph{border-style:solid;border-color:var(--accent);color:var(--accent);background:var(--final-grad)}
  .dpanel .who{font-family:var(--f-ui);font-weight:700;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--ink3)}
  .dpanel .who.client{color:var(--blue)}
  .dpanel .dt{font-family:var(--f-head);font-weight:700;font-size:30px;line-height:1;margin:3px 0 8px}
  .dpanel .body{color:var(--ink2);font-size:15.5px}
  .dpanel .qd{font-family:var(--f-head);font-weight:600;color:var(--ink);font-size:23px;line-height:1.18;border-left:4px solid var(--accent);padding-left:14px;margin:4px 0}
  .dpanel .qd .ru{color:var(--accent)}
  .dpanel .skr{display:flex;gap:8px;margin-top:12px;flex-wrap:wrap}
  .dpanel .skr .ph{width:108px;height:80px;font-size:10px}
  .dprog{font-family:var(--f-ui);font-weight:700;font-size:12px;color:var(--ink3);margin-top:14px}

  /* ============ CONCEPT E — LONG REEL (vertical scrollytelling) ============ */
  .vreel{max-width:760px;margin:0 auto;position:relative}
  .vframe{
    display:grid;grid-template-columns:1fr 1fr;gap:0;align-items:stretch;
    border:2px solid var(--ink);border-radius:12px;overflow:hidden;background:var(--card);
    margin-bottom:0;
  }
  .vlink{height:30px;width:4px;margin:0 auto;border-left:3px dashed var(--line)}
  .vframe .vtext{padding:22px 24px;position:relative}
  .vframe .vart{background:var(--paper2);border-left:2px dashed var(--line);padding:16px;display:flex;align-items:center;justify-content:center}
  .vframe.alt .vtext{order:2;border-left:2px dashed var(--line)}
  .vframe.alt .vart{order:1;border-left:none;border-right:2px dashed var(--line)}
  .vframe .vart .ph{width:100%;height:200px}
  .vframe.fin .vart .ph{border-style:solid;border-color:var(--accent);color:var(--accent);background:var(--final-grad)}
  .vframe .st{font-family:var(--f-ui);font-weight:700;font-size:11.5px;letter-spacing:.12em;text-transform:uppercase;color:var(--accent)}
  .vframe .st .num{color:var(--ink3)}
  .vframe .vt{font-family:var(--f-head);font-weight:700;font-size:30px;line-height:1;margin:3px 0 8px}
  .vframe .who{font-family:var(--f-ui);font-weight:700;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink3);margin-bottom:4px}
  .vframe .who.client{color:var(--blue)}
  .vframe .body{color:var(--ink2);font-size:15px;line-height:1.5}
  .vframe .qd{font-family:var(--f-head);font-weight:600;color:var(--ink);font-size:22px;line-height:1.16;border-left:4px solid var(--accent);padding-left:13px;margin-top:8px}
  .vframe .qd .ru{color:var(--accent)}
  .vsprk{position:absolute;top:0;bottom:0;width:14px;display:flex;flex-direction:column;justify-content:space-around;align-items:center;padding:10px 0}
  .vsprk.l{left:4px}
  .vsprk i{width:7px;height:7px;border:1.5px solid var(--line);border-radius:2px;display:block}

  /* ============ CONCEPT F — THE SPLIT (story | art synced) ============ */
  .split{display:grid;grid-template-columns:1fr 1fr;gap:0;border:2px solid var(--ink);border-radius:14px;overflow:hidden;background:var(--card)}
  .split .story{padding:22px 22px 26px;border-right:2px dashed var(--line);max-height:520px;overflow-y:auto}
  .split .story .pj{font-family:var(--f-head);font-weight:700;font-size:30px;line-height:1;margin-bottom:2px}
  .split .story .pj .ru{color:var(--accent)}
  .split .story .meta{font-family:var(--f-ui);font-weight:700;font-size:11px;letter-spacing:.06em;color:var(--ink3);margin-bottom:14px}
  .sbeat{margin-bottom:16px;border-left:3px solid var(--line);padding-left:13px}
  .sbeat.act{border-left-color:var(--accent)}
  .sbeat .who{font-family:var(--f-ui);font-weight:700;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink3);margin-bottom:3px}
  .sbeat.client .who{color:var(--blue)}
  .sbeat .tx{color:var(--ink2);font-size:14.5px;line-height:1.45}
  .sbeat .qd{font-family:var(--f-head);font-weight:600;color:var(--ink);font-size:21px;line-height:1.16}
  .sbeat .qd .ru{color:var(--accent)}
  .split .art{background:var(--paper2);padding:20px;display:flex;flex-direction:column;align-items:center;justify-content:center;text-align:center}
  .split .art .ph{width:100%;height:260px;font-size:14px}
  .split .art.fin .ph{border-style:solid;border-color:var(--accent);color:var(--accent);background:var(--final-grad)}
  .split .art .ind{font-family:var(--f-ui);font-weight:700;font-size:12px;color:var(--ink3);margin-top:12px;display:flex;gap:6px;align-items:center}
  .split .art .ind .seg{width:22px;height:5px;border-radius:3px;background:var(--line)}
  .split .art .ind .seg.on{background:var(--accent)}

  /* ============ CONCEPT B v2 — CINEMA LIGHTBOX (openable reel) ============ */
  .cinema{position:relative;margin-top:6px}
  .lightbox{
    display:grid;grid-template-columns:1.15fr 1fr;gap:0;align-items:stretch;
    border:2px solid var(--ink);border-radius:14px;overflow:hidden;background:var(--card);
    box-shadow:var(--shadow);
  }
  .lightbox .lb-art{position:relative;background:var(--paper2);display:flex;align-items:center;justify-content:center;padding:18px;min-height:300px;border-right:2px solid var(--ink)}
  .lightbox .lb-art .ph{width:100%;height:100%;min-height:264px;font-size:14px}
  .lightbox .lb-art.fin .ph{border-style:solid;border-color:var(--accent);color:var(--accent);background:var(--final-grad)}
  .lb-frameno{position:absolute;top:12px;left:14px;font-family:var(--f-ui);font-weight:700;font-size:11px;color:var(--ink3);letter-spacing:.14em}
  .lightbox .lb-info{padding:24px 26px;display:flex;flex-direction:column}
  .lb-step{font-family:var(--f-ui);font-weight:700;font-size:12px;letter-spacing:.14em;text-transform:uppercase;color:var(--accent)}
  .lb-step .num{color:var(--ink3)}
  .lb-cap{font-family:var(--f-head);font-weight:700;font-size:40px;line-height:.98;margin:4px 0 8px}
  .lb-who{font-family:var(--f-ui);font-weight:700;font-size:11px;letter-spacing:.1em;text-transform:uppercase;color:var(--ink3);margin-bottom:7px}
  .lb-who.client{color:var(--blue)}
  .lb-line{color:var(--ink2);font-size:16px;line-height:1.5}
  .lb-quote{font-family:var(--f-head);font-weight:600;color:var(--ink);font-size:26px;line-height:1.16;border-left:4px solid var(--accent);padding-left:15px}
  .lb-quote .ru{color:var(--accent)}
  .lb-nav{margin-top:auto;display:flex;align-items:center;gap:10px;padding-top:18px}
  .lb-nav button{font-family:var(--f-ui);font-weight:700;font-size:14px;border:2px solid var(--ink);background:transparent;color:var(--ink);border-radius:10px;padding:7px 14px;cursor:pointer;transition:.14s}
  .lb-nav button:hover{background:var(--ink);color:var(--paper)}
  .lb-nav .frac{font-family:var(--f-ui);font-weight:700;font-size:13px;color:var(--ink3);margin-left:auto}
  .filmstrip{
    display:flex;gap:10px;overflow-x:auto;margin-top:14px;padding:18px 14px;border-radius:12px;
    background-color:var(--ink);
    background-image:
      radial-gradient(circle, var(--paper) 3px, transparent 3.4px),
      radial-gradient(circle, var(--paper) 3px, transparent 3.4px);
    background-size:16px 16px,16px 16px;
    background-position:8px 7px,8px calc(100% - 7px);
    background-repeat:repeat-x,repeat-x;
  }
  .fcell{min-width:132px;width:132px;flex:none;cursor:pointer;border-radius:7px;overflow:hidden;background:var(--card);border:2px solid transparent;transition:.15s}
  .fcell:hover{transform:translateY(-2px)}
  .fcell.on{border-color:var(--accent);transform:translateY(-3px);box-shadow:0 8px 16px -8px rgba(0,0,0,.5)}
  .fcell .fc-art{height:78px;padding:7px;background:var(--paper2)}
  .fcell .fc-art .ph{width:100%;height:100%;font-size:10px;border-radius:4px}
  .fcell.fin .fc-art .ph{border-style:solid;border-color:var(--accent);color:var(--accent)}
  .fcell .fc-cap{font-family:var(--f-ui);font-weight:700;font-size:11px;color:var(--ink2);padding:6px 8px;text-align:center;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
  .fcell .fc-num{color:var(--ink3)}

  /* footer note */
  .footnote{margin-top:34px;text-align:center;font-family:var(--f-ui);font-weight:400;color:var(--ink3);font-size:14px}
  .footnote b{color:var(--accent);font-weight:700}

  @media (max-width:720px){
    .book{grid-template-columns:1fr}
    .page.left{border-right:none;border-bottom:1.5px dashed var(--line)}
    .book::before{display:none}
    .note{position:static;max-width:none;display:block;margin:6px 0;opacity:1!important}
    .frame-canvas{padding:18px}
    .lightbox{grid-template-columns:1fr}
    .lightbox .lb-art{min-height:200px;border-right:none;border-bottom:2px solid var(--ink)}
    .lb-cap{font-size:32px}
  }
  /* clickable thumbnails (sketchrow + reel-diary skr) */
  .sketchrow .ph, .skr .ph{cursor:pointer;transition:transform .15s, box-shadow .15s, border-color .15s}
  .sketchrow .ph:hover, .skr .ph:hover{transform:translateY(-3px);box-shadow:0 9px 18px -11px rgba(0,0,0,.55);border-color:var(--ink3)}
  .sketchrow .ph.imgph, .skr .ph.imgph{background-size:contain;background-repeat:no-repeat;background-position:center;background-color:var(--paper2)}
  .bubble.clickable{cursor:pointer;transition:transform .15s, box-shadow .15s}
  .bubble.clickable:hover{transform:translateY(-2px);box-shadow:0 12px 24px -16px rgba(0,0,0,.5)}