:root{
      --bg1:#f6f8ff;
      --bg2:#fff7ea;
      --panel:#ffffff;
      --text:#1f2937;
      --muted:#6b7280;
      --border:#e5e7eb;
      --shadow: 0 20px 50px rgba(31,41,55,.12);
      --shadow2: 0 12px 30px rgba(31,41,55,.08);

      --green:#0ea15b;
      --green2:#0b7a46;
      --gold:#f4c84a;
      --blue:#4f6bff;
      --cyan:#2bb4d6;
      --orange:#ff8a5b;

      --radius: 22px;
      --radius2: 16px;

      --maxw: 1080px;
      --slide-base-w: 1280px;
      --slide-base-h: 720px;
    }

    *{ box-sizing:border-box; }
    html,body{ height:100%; }
    body{
      margin:0;
      font-family:"Space Grotesk", system-ui, -apple-system, Segoe UI, Roboto, Arial, sans-serif;
      color:var(--text);
      background:
        radial-gradient(1200px 700px at 15% 15%, rgba(79,107,255,.18), transparent 60%),
        radial-gradient(1000px 600px at 85% 20%, rgba(244,200,74,.22), transparent 55%),
        linear-gradient(135deg, var(--bg1), var(--bg2));
      overflow-x:hidden;
      min-height: 100vh;
      display: flex;
      flex-direction: column;
    }

    /* Topbar */
    .topbar{
      position:sticky; top:0; z-index:20;
      backdrop-filter: blur(10px);
      background: rgba(255,255,255,.55);
      border-bottom:1px solid rgba(229,231,235,.7);
    }
    .topbar-inner{
      max-width:var(--maxw);
      margin:0 auto;
      padding:14px 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap:12px;
    }
    .brand{
      display:flex;
      align-items:center;
      gap:10px;
      min-width: 260px;
    }

    /* ✅ Real company logo instead of "TS" */
    .logo{
      width:34px; height:34px;
      border-radius:10px;
      background: rgba(255,255,255,.9);
      border:1px solid rgba(229,231,235,.9);
      display:grid;
      place-items:center;
      overflow:hidden;
      box-shadow: 0 8px 18px rgba(31,41,55,.06);
    }
    .logo img{
      width:100%;
      height:100%;
      object-fit:cover;
      display:block;
    }

    .brand-title{
      display:flex; align-items:center; gap:8px; flex-wrap:wrap;
    }
    .pill{
      font-size:12px;
      color:var(--muted);
      padding:6px 10px;
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.8);
      border-radius:999px;
    }

    .nav-actions{
      display:flex; align-items:center; gap:10px;
    }
    .btn{
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.85);
      padding:10px 14px;
      border-radius:999px;
      cursor:pointer;
      font-weight:600;
      color:#111827;
      display:inline-flex; align-items:center; gap:8px;
      box-shadow: 0 8px 18px rgba(31,41,55,.06);
      transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
      user-select:none;
    }
    .btn:hover{ transform: translateY(-1px); box-shadow: 0 14px 24px rgba(31,41,55,.10); }
    .btn:active{ transform: translateY(0px); }
    .btn.primary{
      border-color: rgba(244,200,74,.8);
      background: rgba(244,200,74,.18);
    }
    .kbd{
      font-size:12px;
      padding:3px 8px;
      border-radius:8px;
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.85);
      color: var(--muted);
    }

    /* Main deck */
    .wrap{
      max-width:var(--maxw);
      margin: 0 auto;
      padding: 18px 18px 24px;
      width: 100%;
      flex: 1;
      display: flex;
      min-height: 0;
    }

    .deck{
      background: rgba(255,255,255,.75);
      border: 1px solid rgba(229,231,235,.8);
      border-radius: calc(var(--radius) + 10px);
      box-shadow: var(--shadow);
      padding: 24px;
      flex: 1;
      display: flex;
      flex-direction: column;
      min-height: 0;
      overflow: hidden;
    }

    /* Tabs like your screenshot */
    .tabs{
      display:flex; align-items:center; gap:10px;
      padding: 8px 6px 18px;
      flex-wrap:wrap;
    }
    .tab{
      padding: 9px 12px;
      border-radius:999px;
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.75);
      color: var(--muted);
      font-weight:600;
      cursor:pointer;
      transition: background .12s ease, transform .12s ease;
      user-select:none;
    }
    .tab:hover{ transform: translateY(-1px); }
    .tab.active{
      color:#111827;
      border-color: rgba(244,200,74,.85);
      background: rgba(244,200,74,.20);
    }

    /* Slide header */
    .slide-head{
      padding: 8px 8px 14px;
    }
    .h1{
      font-family: Arial, sans-serif;
      font-size: 44px;
      line-height: 1.05;
      margin: 6px 0 6px;
      letter-spacing: .2px;
      color: #0f172a;
    }
    .h1 .accent{ color: var(--green2); }
    .sub{
      color: var(--muted);
      font-size: 16px;
      line-height: 1.6;
      margin: 0 0 12px;
      max-width: 820px;
    }
    .slide-extra{
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.72);
      border-radius: 14px;
      padding: 12px 14px;
      box-shadow: var(--shadow2);
      max-width: 900px;
      margin-bottom: 10px;
    }
    .extra-title{
      font-size: 14px;
      font-weight: 700;
      color:#111827;
    }
    .extra-sub{
      margin-top: 2px;
      font-size: 12px;
      color: var(--muted);
      font-weight: 600;
    }
    .extra-list{
      margin: 8px 0 0;
      padding-left: 18px;
      font-size: 12px;
      column-count: 2;
      column-gap: 18px;
    }
    .extra-list li{
      margin: 4px 0;
      line-height: 1.35;
      break-inside: avoid;
    }
    @media (max-width: 760px){
      .extra-list{ column-count: 1; }
    }
    .callout{
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.72);
      border-radius: 14px;
      padding: 12px 14px;
      color:#111827;
      font-weight:600;
      box-shadow: var(--shadow2);
      max-width: 900px;
    }

    /* Content grid */
    .grid{
      display:grid;
      grid-template-columns: 1.35fr .85fr;
      gap: 18px;
      margin-top: 16px;
      flex: 1;
      min-height: 0;
      overflow: auto;
    }
    .grid.single{
      grid-template-columns: 1fr;
    }
    @media (max-width: 980px){
      .grid{ grid-template-columns: 1fr; }
      .brand{ min-width:unset; }
      .h1{ font-size: 36px; }
    }

    .panel{
      background: rgba(255,255,255,.8);
      border: 1px solid rgba(229,231,235,.85);
      border-radius: var(--radius);
      padding: 18px;
      box-shadow: var(--shadow2);
    }
    .panel-title{
      display:flex; align-items:center; justify-content:space-between;
      gap:10px;
      margin-bottom: 10px;
    }
    .panel-title h3{
      margin:0;
      font-size: 15px;
      letter-spacing:.2px;
      color:#111827;
    }
    .tag{
      font-size:12px;
      color: var(--muted);
      padding: 5px 10px;
      border: 1px solid rgba(229,231,235,.9);
      border-radius: 999px;
      background: rgba(255,255,255,.75);
    }

    /* Bullet list */
    .bullets{
      margin: 10px 0 0;
      padding-left: 18px;
      color:#111827;
    }
    .bench{
      display:grid;
      gap:10px;
      margin-top: 6px;
    }
    .bench-list{
      display:flex;
      gap:8px;
      flex-wrap:wrap;
    }
    .bench-item{
      text-align:center;
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.78);
      width:32px;
      height:32px;
      border-radius: 999px;
      font-weight: 600;
      font-size: 12px;
      color:#111827;
      cursor: pointer;
      display:grid;
      place-items:center;
    }
    .bench-item.active{
      border-color: rgba(244,200,74,.85);
      background: rgba(244,200,74,.20);
    }
    .bench-detail{
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.8);
      border-radius: var(--radius2);
      padding: 10px 12px;
      box-shadow: var(--shadow2);
    }
    .bench-title{
      font-size: 13px;
      font-weight: 700;
      color:#111827;
      margin-bottom: 4px;
    }
    .bench-meta{
      font-size: 12px;
      color: var(--muted);
      margin-bottom: 8px;
    }
    .bench-cols{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 10px;
    }
    .bench-sub{
      font-size: 12px;
      font-weight: 700;
      color:#111827;
      margin-bottom: 4px;
    }
    .bench-ul{
      margin: 0;
      padding-left: 16px;
      font-size: 12px;
      color:#111827;
    }
    .bench-note{
      margin-top: 8px;
      font-size: 11px;
      color: var(--muted);
      line-height: 1.4;
    }
    @media (max-width: 520px){
      .bench-cols{ grid-template-columns: 1fr; }
    }
    .left-media{
      margin-top: 6px;
      border:1px solid rgba(229,231,235,.85);
      border-radius: var(--radius);
      background: rgba(255,255,255,.85);
      box-shadow: var(--shadow2);
      overflow: hidden;
      position: relative;
    }
    .left-media img{
      width:100%;
      height:auto;
      display:block;
      object-fit: contain;
      cursor: zoom-in;
    }
    .left-media-next{
      position:absolute;
      right:12px;
      top:50%;
      transform: translateY(-50%);
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.92);
      width:36px;
      height:36px;
      border-radius: 999px;
      font-weight: 700;
      cursor: pointer;
      display: grid;
      place-items: center;
      box-shadow: 0 10px 22px rgba(31,41,55,.12);
    }
    .img-next{
      position:absolute;
      right:10px;
      top:50%;
      transform: translateY(-50%);
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.92);
      width:30px;
      height:30px;
      border-radius: 999px;
      font-weight: 700;
      cursor: pointer;
      display: grid;
      place-items: center;
      box-shadow: 0 10px 22px rgba(31,41,55,.12);
      z-index: 2;
    }
    .bullets li{
      margin: 8px 0;
      line-height: 1.55;
    }
    .muted{ color:var(--muted); }

    /* Stats cards */
    .stats{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 12px;
    }
    @media (max-width: 520px){ .stats{ grid-template-columns: 1fr; } }

    .gaps-grid{
      display:grid;
      grid-template-columns: 1fr 1fr;
      gap: 12px;
      margin-top: 12px;
    }
    .gap-card{
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.78);
      border-radius: var(--radius2);
      padding: 12px;
      box-shadow: 0 10px 22px rgba(31,41,55,.06);
    }
    .gap-title{
      font-size: 12px;
      color: var(--muted);
      font-weight: 700;
      letter-spacing: .2px;
      text-transform: uppercase;
    }
    .gap-value{
      font-size: 18px;
      font-weight: 800;
      color:#111827;
      margin-top: 2px;
    }
    .gap-note{
      margin-top: 6px;
      font-size: 12px;
      color: var(--muted);
      line-height: 1.4;
    }
    @media (max-width: 520px){ .gaps-grid{ grid-template-columns: 1fr; } }

    .stat{
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.78);
      border-radius: var(--radius2);
      padding: 14px;
      box-shadow: 0 10px 22px rgba(31,41,55,.06);
      position:relative;
      overflow:hidden;
    }
    .stat::before{
      content:"";
      position:absolute; inset:0;
      background: radial-gradient(500px 120px at 10% 0%, rgba(14,161,91,.12), transparent 55%),
                  radial-gradient(420px 120px at 80% 10%, rgba(79,107,255,.10), transparent 55%);
      pointer-events:none;
    }
    .stat .k{
      position:relative;
      font-size: 12px;
      color: var(--muted);
      margin-bottom: 6px;
      font-weight: 600;
    }
    .stat .v{
      position:relative;
      font-size: 26px;
      font-weight: 800;
      color:#0f172a;
      letter-spacing: .2px;
    }
    .stat .note{
      position:relative;
      margin-top: 6px;
      font-size: 12px;
      color: var(--muted);
      line-height: 1.4;
    }
    .growth-card{
      border:1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.78);
      border-radius: var(--radius2);
      padding: 14px;
      box-shadow: 0 10px 22px rgba(31,41,55,.06);
      margin-top: 12px;
    }
    .growth-title{
      font-size: 14px;
      font-weight: 700;
      color:#111827;
    }
    .growth-sub{
      margin-top: 2px;
      font-size: 12px;
      color: var(--muted);
      font-weight: 600;
    }
    .growth-table{
      width:100%;
      border-collapse: collapse;
      margin-top: 8px;
      font-size: 12px;
    }
    .growth-table th,
    .growth-table td{
      text-align:left;
      padding: 6px 0;
    }
    .growth-table th{
      color: var(--muted);
      font-weight: 600;
    }
    .growth-table td{
      border-top:1px dashed rgba(148,163,184,.35);
      color:#0f172a;
    }
    .growth-table td.growth-value{
      font-weight: 700;
    }
    .growth-note{
      margin-top: 8px;
      font-size: 11px;
      color: var(--muted);
      line-height: 1.4;
    }
    @media (max-width: 520px){
      .growth-card{ padding: 12px; }
      .growth-table{ font-size: 11px; }
    }

    /* Images panel */
    .imgbox{
      display:grid;
      gap: 12px;
    }
    .img{
      width:100%;
      aspect-ratio: 16/9;
      border-radius: var(--radius);
      border:1px dashed rgba(148,163,184,.7);
      background: rgba(255,255,255,.65);
      display:grid;
      place-items:center;
      color: var(--muted);
      font-weight: 700;
      overflow:hidden;
      position:relative;
    }
    .img.chart{
      aspect-ratio: 860 / 320;
      background: rgba(255,255,255,.9);
      border-style: solid;
    }
    .img canvas{
      width:100%;
      height:100%;
      display:block;
    }
    .img img{
      width:100%;
      height:100%;
      object-fit:cover;
      display:block;
    }
    .img small{
      position:absolute;
      bottom:10px; left:12px;
      padding: 6px 10px;
      background: rgba(255,255,255,.75);
      border:1px solid rgba(229,231,235,.85);
      border-radius:999px;
      font-size:12px;
      color:#111827;
      backdrop-filter: blur(8px);
    }
    .img.clickable img{ cursor: zoom-in; }
    .img.is-logo{
      background: rgba(255,255,255,.9);
      border-style: solid;
    }
    .img.is-logo img{
      width: 62%;
      height: 62%;
      object-fit: contain;
    }
    .chart-block{
      border:1px solid rgba(229,231,235,.85);
      border-radius: var(--radius);
      background: rgba(255,255,255,.85);
      box-shadow: var(--shadow2);
      padding: 12px;
    }
    .chart-title{
      font-size: 13px;
      font-weight: 700;
      color:#111827;
      margin: 2px 0 10px;
    }
    .chart-canvas{
      width:100%;
      height:auto;
      aspect-ratio: 860 / 320;
      display:block;
      cursor: zoom-in;
    }
    .chart-canvas.bar{
      aspect-ratio: 860 / 240;
    }

    /* Lightbox */
    .lightbox{
      position: fixed;
      inset: 0;
      background: rgba(15,23,42,.55);
      display: flex;
      align-items: center;
      justify-content: center;
      opacity: 0;
      pointer-events: none;
      transition: opacity .16s ease;
      z-index: 60;
      padding: 24px;
    }
    .lightbox.open{
      opacity: 1;
      pointer-events: auto;
    }
    .lightbox img{
      max-width: min(92vw, 1100px);
      max-height: 82vh;
      border-radius: 18px;
      background: #fff;
      box-shadow: var(--shadow);
    }
    .lightbox .lightbox-close{
      position: absolute;
      top: 16px;
      right: 16px;
      border: 1px solid rgba(229,231,235,.9);
      background: rgba(255,255,255,.9);
      padding: 8px 12px;
      border-radius: 999px;
      font-weight: 600;
      cursor: pointer;
    }

    /* Footer controls */
    .footer{
      margin-top: 18px;
      display:flex;
      align-items:center;
      justify-content:space-between;
      gap: 12px;
      flex-wrap:wrap;
    }
    .progress{
      display:flex; align-items:center; gap:6px;
      flex-wrap:wrap;
    }
    .dot{
      width:10px; height:10px;
      border-radius:99px;
      border:1px solid rgba(148,163,184,.65);
      background: rgba(255,255,255,.55);
      cursor:pointer;
      transition: transform .12s ease, background .12s ease;
    }
    .dot:hover{ transform: translateY(-1px); }
    .dot.active{
      background: rgba(14,161,91,.55);
      border-color: rgba(14,161,91,.75);
    }
    .meta{
      color: var(--muted);
      font-size: 13px;
      display:flex; align-items:center; gap:10px;
    }

    /* ✅ Cover slide special layout */
    .cover-wrap{
      display:grid;
      gap:16px;
    }
    .cover-image{
      width:100%;
      border-radius: var(--radius);
      overflow:hidden;
      border:1px solid rgba(229,231,235,.85);
      background: rgba(255,255,255,.7);
      box-shadow: var(--shadow2);
      aspect-ratio: 16/7;
    }
    .cover-image img{
      width:100%;
      height:100%;
      object-fit: cover;
      display:block;
    }
    .cover-logos{
      display:flex;
      justify-content:center;
      gap:16px;
      flex-wrap:wrap;
      padding:14px;
      border-radius: var(--radius);
      border:1px solid rgba(229,231,235,.85);
      background: rgba(255,255,255,.72);
      box-shadow: var(--shadow2);
    }
    .cover-logos .logo-card{
      background:white;
      border:1px solid rgba(229,231,235,.85);
      border-radius: 16px;
      padding: 12px 16px;
      box-shadow: 0 10px 22px rgba(31,41,55,.06);
      display:flex;
      align-items:center;
      justify-content:center;
    }
    .cover-logos img{
      height: 54px;
      width:auto;
      display:block;
    }
    .start-btn{
      display:inline-flex;
      align-items:center;
      justify-content:center;
      gap:10px;
      padding: 12px 18px;
      border-radius: 999px;
      border:1px solid rgba(244,200,74,.85);
      background: linear-gradient(135deg, rgba(244,200,74,.26), rgba(79,107,255,.18));
      font-weight: 800;
      cursor:pointer;
      box-shadow: 0 14px 26px rgba(31,41,55,.10);
      transition: transform .12s ease, box-shadow .12s ease;
      user-select:none;
    }
    .start-btn:hover{ transform: translateY(-1px); box-shadow: 0 18px 34px rgba(31,41,55,.14); }

    /* Print */
    @media print{
      .topbar, .footer{ display:none !important; }
      body{ background: #fff; }
      .deck{ box-shadow:none; border:1px solid #ddd; }
    }


/* ===========================
   PPT-style shell overrides
   =========================== */
body {
  display: block;
}

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 280px 1fr;
  gap: 0;
}

.sidebar {
  background: rgba(255, 255, 255, 0.92);
  border-right: 1px solid rgba(229, 231, 235, 0.85);
  padding: 18px 16px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  position: sticky;
  top: 0;
  height: 100vh;
  overflow: auto;
}

.sidebar-brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.sidebar .logo {
  width: 46px;
  height: 46px;
}

.brand-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.deck-title {
  font-weight: 700;
  font-size: 15px;
  color: #111827;
}

.deck-subtitle {
  font-size: 12px;
  color: var(--muted);
}

.slide-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.slide-item {
  border: 1px solid transparent;
  background: transparent;
  border-radius: 14px;
  padding: 8px 10px;
  display: flex;
  gap: 10px;
  align-items: flex-start;
  cursor: pointer;
  text-align: left;
  transition: transform .12s ease, box-shadow .12s ease, background .12s ease;
  color: inherit;
}

.slide-item:hover {
  transform: translateY(-1px);
}

.slide-item.active {
  background: rgba(255, 255, 255, 0.95);
  border-color: rgba(244, 200, 74, .85);
  box-shadow: 0 12px 24px rgba(31, 41, 55, .08);
}

.slide-num {
  font-weight: 700;
  font-size: 11px;
  padding: 4px 7px;
  border-radius: 10px;
  background: rgba(244, 200, 74, .22);
  color: #111827;
  min-width: 30px;
  text-align: center;
}

.slide-text {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.slide-text .slide-section {
  text-transform: uppercase;
  letter-spacing: .08em;
  font-size: 10px;
  color: var(--muted);
}

.slide-text .slide-title {
  font-size: 12px;
  font-weight: 700;
  color: #0f172a;
}

.sidebar-footer {
  margin-top: auto;
  font-size: 12px;
  color: var(--muted);
}

.main {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(10px);
  background: rgba(255, 255, 255, 0.7);
  border-bottom: 1px solid rgba(229, 231, 235, 0.75);
  padding: 12px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
}

.icon-btn {
  display: none;
  width: 38px;
  height: 38px;
  padding: 0;
  align-items: center;
  justify-content: center;
}

.topbar-right {
  margin-left: auto;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.lang-toggle {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 6px 10px;
  border: 1px solid rgba(229, 231, 235, .85);
  border-radius: 999px;
  background: rgba(255, 255, 255, .85);
}

.lang-btn {
  border: none;
  background: transparent;
  font-weight: 700;
  color: #111827;
  cursor: pointer;
}

.lang-btn.is-active {
  background: rgba(244, 200, 74, .25);
  border-radius: 999px;
  padding: 2px 8px;
}

.lang-sep {
  color: var(--muted);
}

.slide-area {
  flex: 1;
  padding: 18px 24px 24px;
  display: flex;
  flex-direction: column;
}

.slide-canvas {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
}

.slide-card {
  width: min(1160px, 92vw);
  aspect-ratio: 16 / 9;
  display: flex;
  align-items: stretch;
  justify-content: center;
}

.slide-card .deck {
  width: 100%;
  height: 100%;
}

.scrim {
  position: fixed;
  inset: 0;
  background: rgba(15, 23, 42, .45);
  opacity: 0;
  pointer-events: none;
  transition: opacity .16s ease;
  z-index: 25;
}

body.sidebar-open .scrim {
  opacity: 1;
  pointer-events: auto;
}

body.sidebar-open .sidebar {
  transform: translateX(0);
}

body.is-fullscreen .app-shell {
  width: 100vw;
  height: 100vh;
}

body.is-fullscreen .sidebar {
  display: none;
}

body.is-fullscreen .deck-title,
body.is-fullscreen .deck-subtitle,
body.is-fullscreen .slide-text,
body.is-fullscreen .sidebar-footer {
  display: none;
}

body.is-fullscreen .slide-card {
  width: var(--slide-base-w);
  height: var(--slide-base-h);
  max-width: none;
  max-height: none;
  aspect-ratio: auto;
  margin: 0;
  border-radius: 12px;
  overflow: hidden;
  position: absolute;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%) scale(1);
  transform-origin: center center;
}

body.is-fullscreen {
  background: #f5f7fb;
  overflow: hidden;
}

body.is-fullscreen .main {
  height: 100vh;
  overflow: hidden;
  position: relative;
  width: 100vw;
}

body.is-fullscreen .topbar {
  position: absolute;
  top: 12px;
  right: 12px;
  left: auto;
  padding: 0;
  background: transparent;
  border: none;
  box-shadow: none;
  backdrop-filter: none;
  z-index: 50;
}

body.is-fullscreen .slide-area {
  padding: 0;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}

body.is-fullscreen .slide-canvas {
  width: 100%;
  height: 100%;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
}

body.is-fullscreen .slide-canvas.needs-scroll {
  overflow: auto;
  align-items: flex-start;
  justify-content: center;
}

body.is-fullscreen .slide-card .deck {
  height: 100%;
  overflow: hidden;
  background: #ffffff;
  border-radius: 12px;
  box-shadow: 0 12px 28px rgba(31, 41, 55, 0.12);
  border: 1px solid rgba(229, 231, 235, 0.85);
  width: 100%;
  height: 100%;
}

body.is-fullscreen .grid {
  overflow: visible;
  flex: 0 0 auto;
  max-height: none;
}

body.is-fullscreen .img img,
body.is-fullscreen .left-media img,
body.is-fullscreen .cover-image img {
  object-fit: contain;
  max-width: 100%;
  max-height: 100%;
}

@media (max-width: 980px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    width: 260px;
    transform: translateX(-100%);
    transition: transform .2s ease;
    z-index: 30;
  }

  .icon-btn {
    display: inline-flex;
  }
}

@media (max-width: 720px) {
  .topbar {
    padding: 10px 14px;
  }

  .slide-area {
    padding: 14px;
  }

  .slide-card {
    width: min(980px, 94vw);
  }
}