/* ==========================================================================
   1. LANDING PAGE (index.html)
   ==========================================================================

   Scroll-driven hero → pull quote → bento grid → keyboard showcase → CTA.
   The hero uses a sticky inner box driven by a JS-updated CSS variable
   --progress (0 → 1) set on .hero-pin. Everything visual derives from it.
   -------------------------------------------------------------------------- */

/* Shared button-group helper used on the landing page and the 404. */
.intro-buttons{
    display: flex;
    gap: var(--space-m);
    flex-wrap: wrap;
}

/* ---------- Scroll-driven hero ---------- */

section.hero-scroll{
    position: relative;
    height: 220vh;
    margin: 0;
    margin-left: calc(50% - 50vw);
    margin-right: calc(50% - 50vw);
}

.hero-pin{
    position: sticky;
    top: 0;
    height: 100vh;
    height: 100svh;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding-top: 50px;
    --progress: 0;
}

/* Text content — visible at progress 0, fades out as the video grows */
.hero-text{
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 0 var(--space-m);
    max-width: 900px;
    opacity: calc(1 - var(--progress) * 1.6);
    transform: translateY(calc(var(--progress) * -40px));
    transition: opacity 0.1s linear;
    pointer-events: auto;
}

.hero-text[data-progress-hidden="true"]{
    pointer-events: none;
}

.hero-eyebrow{
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 14px;
    margin-bottom: var(--space-xl);
    font-size: var(--fs-small);
    font-weight: var(--fw-medium);
    color: var(--color-text);
    background: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(0, 0, 0, 0.08);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-radius: 999px;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.04);
}

.hero-eyebrow .dot{
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--color-primary);
    box-shadow: 0 0 10px var(--color-primary);
}

.hero-text h1{
    font-size: clamp(2rem, min(6.5vw, 8.5vh), 5.5rem);
    font-weight: var(--fw-bold);
    line-height: 1.02;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-l);
    color: var(--color-text);
}

.hero-text h1 .accent{
    background: linear-gradient(135deg, #51ABEC 0%, #D15EFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.hero-text p.lead{
    font-size: clamp(1rem, min(1.6vw, 2.2vh), 1.375rem);
    line-height: 1.5;
    color: var(--color-text-muted);
    max-width: 600px;
    margin: 0 auto var(--space-xl);
}

.hero-text .scroll-hint{
    display: inline-flex;
    align-items: center;
    gap: var(--space-xs);
    font-size: var(--fs-small);
    color: var(--color-text-muted);
    margin-top: var(--space-l);
}

.hero-text .scroll-hint svg{
    animation: scroll-bounce 1.8s ease-in-out infinite;
}

@keyframes scroll-bounce{
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(4px); }
}

/* The video container.
   At progress 0: a small box anchored to the bottom of the pin, centered
   horizontally, clamped so it never overlaps the text area above it.
   At progress 1: inset: 0 — fills the entire viewport pin.
   Each edge is interpolated from its small-box value down to 0. */
.hero-video{
    position: absolute;
    /* Base size — capped by both vw and vh so short viewports get a
       smaller initial video that always fits under the text. */
    --base-w: min(28vw, 35vh);
    --base-h: calc(var(--base-w) * 9 / 16);
    --gap-bottom: clamp(16px, 4vh, 48px);
    left:   calc(((100vw - var(--base-w)) / 2) * (1 - var(--progress)));
    right:  calc(((100vw - var(--base-w)) / 2) * (1 - var(--progress)));
    top:    calc((100vh - var(--base-h) - var(--gap-bottom)) * (1 - var(--progress)));
    bottom: calc(var(--gap-bottom) * (1 - var(--progress)));
    border-radius: calc(24px * (1 - var(--progress)));
    overflow: hidden;
    box-shadow:
      0 calc(30px + 30px * (1 - var(--progress))) calc(80px + 40px * (1 - var(--progress))) -20px rgba(0, 0, 0, calc(0.35 * (1 - var(--progress)))),
      0 10px 30px -10px rgba(0, 0, 0, calc(0.2 * (1 - var(--progress))));
    background: #0a0a0c;
    transition: box-shadow 0.1s linear;
    z-index: 1;
}

.hero-video video{
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* Subtle highlight border on the small player that fades out as it grows */
.hero-video::after{
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    border: 1px solid rgba(255, 255, 255, 0.15);
    pointer-events: none;
    opacity: calc(1 - var(--progress));
}

/* Reduced motion: freeze video at a readable size, no animation */
@media (prefers-reduced-motion: reduce){
    section.hero-scroll{ height: auto; }
    .hero-pin{ position: static; height: auto; padding: var(--space-section) 0; }
    .hero-text{ opacity: 1; transform: none; }
    .hero-video{
        position: relative;
        left: auto;
        top: auto;
        transform: none;
        width: min(900px, 92vw);
        margin: var(--space-xxl) auto 0;
        border-radius: 20px;
    }
    .hero-video::after{ opacity: 0.5; }
}

/* ---------- Pull quote ---------- */

.pull-quote{
    padding: var(--space-section) var(--space-m);
    text-align: center;
    max-width: 900px;
    margin: 0 auto;
}

.pull-quote blockquote{
    font-size: clamp(1.75rem, 4vw, 3rem);
    line-height: 1.2;
    letter-spacing: -0.02em;
    font-weight: var(--fw-semibold);
    color: var(--color-text);
    margin: 0 0 var(--space-xl);
}

.pull-quote blockquote .mark{
    background: linear-gradient(135deg, #51ABEC 0%, #D15EFF 100%);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.pull-quote cite{
    font-style: normal;
    color: var(--color-text-muted);
    font-size: var(--fs-small);
    letter-spacing: 0.05em;
    text-transform: uppercase;
}

/* ---------- Bento grid ---------- */

.bento-section{
    padding: var(--space-section) 0;
}

.bento-heading{
    text-align: center;
    margin-bottom: var(--space-xxl);
}

.bento-heading h2{
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--fw-bold);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-s);
}

.bento-heading p{
    color: var(--color-text-muted);
    font-size: var(--fs-h4);
    max-width: 600px;
    margin: 0 auto;
}

.bento{
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    grid-auto-rows: 180px;
    gap: var(--space-m);
}

.bento-card{
    position: relative;
    background: #fafafa;
    border: 1px solid var(--color-border);
    border-radius: 20px;
    padding: var(--space-xl);
    overflow: hidden;
    transition: transform 0.3s ease, box-shadow 0.3s ease, border-color 0.3s ease;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: var(--space-s);
}

.bento-card:hover{
    transform: translateY(-4px);
    box-shadow: 0 30px 60px -30px rgba(0, 0, 0, 0.18);
    border-color: rgba(0, 0, 0, 0.12);
}

.bento-card h3{
    font-size: var(--fs-h3);
    font-weight: var(--fw-semibold);
    letter-spacing: -0.01em;
    margin: 0;
}

.bento-card p{
    color: var(--color-text-muted);
    font-size: var(--fs-small);
    margin: 0;
    max-width: 32ch;
}

/* Bento card with a side image (text on the left, image pinned to the
   right edge). The image bleeds to the card's right edge so it reads
   as a decorative accent rather than an inline illustration. */
.bento-card.has-side-image{
    flex-direction: row;
    align-items: center;
    gap: var(--space-xl);
    padding-right: 60px;
}

.bento-card.has-side-image .bento-card-text{
    flex: 1 1 auto;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-s);
}

.bento-card.has-side-image .bento-card-text h3{
    margin: 0;
}

.bento-card.has-side-image .bento-card-text p{
    margin: 0;
    max-width: 48ch;
}

.bento-side-image{
    flex: 0 0 auto;
    height: 100%;
    width: auto;
    max-width: 30%;
    object-fit: contain;
    object-position: right center;
    align-self: stretch;
}

/* Bento sizes */
.bento-card.xl { grid-column: span 4; grid-row: span 2; }
.bento-card.lg { grid-column: span 2; grid-row: span 2; }
.bento-card.md { grid-column: span 3; grid-row: span 1; }
.bento-card.sm { grid-column: span 2; grid-row: span 1; }
.bento-card.wide { grid-column: span 6; grid-row: span 1; }

/* XL card visual: mini grid hero */
.bento-card.xl{
    background:
      radial-gradient(ellipse at 80% 20%, rgba(81, 171, 236, 0.18) 0%, rgba(81, 171, 236, 0) 60%),
      radial-gradient(ellipse at 20% 80%, rgba(209, 94, 255, 0.14) 0%, rgba(209, 94, 255, 0) 60%),
      #fafafa;
}

.bento-visual{
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.bento-mini-grid{
    display: grid;
    grid-template-columns: repeat(8, 28px);
    grid-template-rows: repeat(4, 28px);
    gap: 1px;
    background: rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.1);
    border-radius: 8px;
    overflow: hidden;
    transform: translateY(-20px);
}

.bento-mini-grid > div{
    background: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: var(--fw-semibold);
    color: var(--color-text);
    font-family: 'SF Mono', Menlo, Consolas, monospace;
}

.bento-mini-grid > div.op{ color: var(--color-text-muted); }
.bento-mini-grid > div.res{ color: var(--color-primary); }
.bento-mini-grid > div.underline{ border-bottom: 1.5px solid var(--color-text); }

/* Key card: shows a big single keycap */
.bento-card.lg .bento-visual{
    top: var(--space-xl);
    bottom: auto;
    height: 60%;
}

.bento-keycap{
    font-family: 'SF Mono', Menlo, Consolas, monospace;
    font-size: 2.5rem;
    font-weight: var(--fw-bold);
    color: var(--color-text);
    background: #fff;
    border: 1px solid var(--color-border);
    border-radius: 12px;
    padding: 16px 20px;
    min-width: 80px;
    text-align: center;
    box-shadow:
      0 1px 0 rgba(0, 0, 0, 0.1),
      0 4px 0 rgba(0, 0, 0, 0.06),
      inset 0 -2px 0 rgba(0, 0, 0, 0.04);
    transform: rotate(-4deg);
}

/* Audio waveform card */
.bento-waveform{
    display: flex;
    align-items: center;
    gap: 4px;
    height: 60px;
}

.bento-waveform span{
    width: 4px;
    background: var(--color-primary);
    border-radius: 2px;
    animation: wave 1.2s ease-in-out infinite;
}

.bento-waveform span:nth-child(1){ height: 20%; animation-delay: 0.0s; }
.bento-waveform span:nth-child(2){ height: 60%; animation-delay: 0.1s; }
.bento-waveform span:nth-child(3){ height: 40%; animation-delay: 0.2s; }
.bento-waveform span:nth-child(4){ height: 80%; animation-delay: 0.3s; }
.bento-waveform span:nth-child(5){ height: 30%; animation-delay: 0.4s; }
.bento-waveform span:nth-child(6){ height: 70%; animation-delay: 0.5s; }
.bento-waveform span:nth-child(7){ height: 50%; animation-delay: 0.6s; }
.bento-waveform span:nth-child(8){ height: 90%; animation-delay: 0.7s; }
.bento-waveform span:nth-child(9){ height: 35%; animation-delay: 0.8s; }
.bento-waveform span:nth-child(10){ height: 55%; animation-delay: 0.9s; }

@keyframes wave{
    0%, 100% { transform: scaleY(0.5); }
    50%      { transform: scaleY(1); }
}

/* ---------- Keyboard showcase ---------- */

.keyboard-section{
    padding: var(--space-section) 0;
    text-align: center;
}

.keyboard-section h2{
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: var(--fw-bold);
    letter-spacing: -0.02em;
    margin-bottom: var(--space-s);
}

.keyboard-section .subtitle{
    color: var(--color-text-muted);
    font-size: var(--fs-h4);
    max-width: 600px;
    margin: 0 auto var(--space-xxl);
}

.keyboard-list{
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 4px var(--space-xxl);
    max-width: 860px;
    margin: 0 auto;
    padding: var(--space-xxl) var(--space-xxl) calc(var(--space-xxl) - 4px);
    background: #fafafa;
    border: 1px solid var(--color-border);
    border-radius: 24px;
    text-align: left;
}

.key-row{
    display: flex;
    align-items: center;
    gap: var(--space-m);
    padding: 10px 14px;
    border-radius: 12px;
    transition: background 0.15s;
}

.key-row:hover{
    background: rgba(0,0,0,0.03);
}

.key-row .keys{
    display: flex;
    align-items: center;
    gap: 6px;
    min-width: 180px;
    flex-shrink: 0;
}

.key-row .desc{
    color: var(--color-text-muted);
    font-size: var(--fs-small);
}

.key-row .plus{
    color: var(--color-text-muted);
    font-size: var(--fs-xs);
}

/* Big keycaps with press animation */
.keyboard-list kbd{
    min-width: 42px;
    padding: 8px 12px;
    font-size: 0.95rem;
    font-weight: 600;
    background: #fff;
    border: 1px solid #d1d1d6;
    border-radius: 10px;
    box-shadow:
      0 3px 0 rgba(0,0,0,0.10),
      0 3px 6px rgba(0,0,0,0.04),
      inset 0 -1px 0 rgba(0,0,0,0.05);
    transition: transform 0.08s ease, box-shadow 0.08s ease, background 0.08s ease;
    line-height: 1.3;
    cursor: pointer;
}

.keyboard-list kbd.pressed{
    transform: translateY(3px);
    box-shadow:
      0 0 0 rgba(0,0,0,0.10),
      0 0 0 rgba(0,0,0,0.04),
      inset 0 1px 3px rgba(0,0,0,0.10);
    background: #e8e8ed;
}

/* ---------- CTA banner ---------- */

.cta-banner{
    position: relative;
    padding: calc(var(--space-section) * 1.2) var(--space-m);
    text-align: center;
    margin: var(--space-section) calc(50% - 50vw) 0;
    background:
      radial-gradient(ellipse at center, #1a1a1f 0%, #0a0a0c 80%);
    color: #fff;
    overflow: hidden;
}

.cta-banner::before{
    content: "";
    position: absolute;
    inset: 0;
    background:
      radial-gradient(circle at 30% 30%, rgba(81, 171, 236, 0.3) 0%, transparent 50%),
      radial-gradient(circle at 70% 70%, rgba(209, 94, 255, 0.25) 0%, transparent 50%);
    pointer-events: none;
}

.cta-banner-inner{
    position: relative;
    max-width: 720px;
    margin: 0 auto;
}

.cta-banner h2{
    font-size: clamp(2.25rem, 5vw, 3.75rem);
    font-weight: var(--fw-bold);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: #fff;
    margin-bottom: var(--space-m);
}

.cta-banner p{
    font-size: var(--fs-h4);
    color: rgba(255, 255, 255, 0.7);
    margin-bottom: var(--space-xxl);
    max-width: 520px;
    margin-left: auto;
    margin-right: auto;
}

.cta-banner .button{
    padding: 16px 32px;
    font-size: 1.0625rem;
    border-radius: 12px;
}

/* ---------- Landing-page responsive ---------- */

@media (max-width: 1024px){
    .bento{
        grid-template-columns: repeat(4, 1fr);
        grid-auto-rows: 180px;
    }
    .bento-card.xl { grid-column: span 4; grid-row: span 2; }
    .bento-card.lg { grid-column: span 2; grid-row: span 2; }
    .bento-card.md { grid-column: span 2; grid-row: span 1; }
    .bento-card.sm { grid-column: span 2; grid-row: span 1; }
    .bento-card.wide { grid-column: span 4; grid-row: span 1; }
}

@media (max-width: 720px){
    .bento{
        grid-template-columns: 1fr;
        grid-auto-rows: auto;
    }
    .bento-card,
    .bento-card.xl,
    .bento-card.lg,
    .bento-card.md,
    .bento-card.sm,
    .bento-card.wide{
        grid-column: span 1;
        grid-row: span 1;
        min-height: 200px;
    }
    .bento-card.xl{ min-height: 320px; }
    .bento-card.has-side-image{
        flex-direction: column;
        align-items: stretch;
        padding-right: var(--space-xl);
        gap: var(--space-m);
    }
    .bento-side-image{
        max-width: 140px;
        height: auto;
        align-self: flex-end;
        object-position: center;
    }
    .keyboard-list{
        grid-template-columns: 1fr;
        padding: var(--space-l);
        gap: 2px;
    }
    .hero-video{
        /* Start a bit larger on narrow screens so the player stays readable */
        --base-w: min(62vw, 32vh);
    }
}

/* ==========================================================================
   2. SHOWCASE (used on about.html for a worksheet preview figure)
   ========================================================================== */

.showcase{
    border-radius: 20px;
    overflow: hidden;
    box-shadow:
      0 40px 80px -30px rgba(0, 0, 0, 0.25),
      0 16px 32px -16px rgba(0, 0, 0, 0.12);
    background: #f5f5f7;
    border: 1px solid var(--color-border);
}

.showcase video,
.showcase img{
    display: block;
    width: 100%;
    height: auto;
}

/* ==========================================================================
   3. FOOTER (column layout used on every page)
   ========================================================================== */

.footer-cols{
    display: grid;
    grid-template-columns: 1.4fr 1fr 1fr 1fr;
    gap: var(--space-xxl);
}

.footer-brand .logo-text{
    font-weight: var(--fw-semibold);
    font-size: var(--fs-h4);
    margin-bottom: var(--space-s);
}

.footer-brand p{
    color: var(--color-text-muted);
    font-size: var(--fs-small);
    max-width: 280px;
}

.footer-col h4{
    font-size: var(--fs-small);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-muted);
    margin-bottom: var(--space-m);
}

.footer-col ul{
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.footer-col a{
    color: var(--color-text);
    font-weight: var(--fw-regular);
    font-size: var(--fs-small);
}

.footer-col a:hover{
    color: var(--color-primary);
    text-decoration: none;
}

.footer-bottom{
    padding-top: var(--space-m);
    border-top: 1px solid var(--color-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: var(--fs-small);
    color: var(--color-text-muted);
}

#build-info a{
    color: var(--color-text-muted);
    font-weight: var(--fw-regular);
    font-family: 'SF Mono', Menlo, Consolas, monospace;
}

#build-info a:hover{
    color: var(--color-primary);
    text-decoration: underline;
}

@media (max-width: 900px){
    .footer-cols{ grid-template-columns: 1fr 1fr; gap: var(--space-xl); }
    .footer-brand{ grid-column: 1 / -1; }
    .footer-bottom{ flex-direction: column; gap: var(--space-s); text-align: center; }
}

/* ==========================================================================
   4. 404 PAGE
   ========================================================================== */

.not-found{
    text-align: center;
    padding: var(--space-section) var(--space-m);
}

.not-found .code{
    font-size: 8rem;
    font-weight: var(--fw-bold);
    line-height: 1;
    background: linear-gradient(135deg, var(--color-primary), var(--color-purple));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    margin-bottom: var(--space-m);
}

.not-found p{
    color: var(--color-text-muted);
    font-size: var(--fs-h4);
    margin-bottom: var(--space-xl);
}

.not-found .intro-buttons{
    justify-content: center;
}

@media (max-width: 900px){
    .not-found .code{ font-size: 5rem; }
}

/* ==========================================================================
   5. ABOUT PAGE
   ========================================================================== */

.about-us-images{
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-l);
}

.about-us-images img{
    width: 100%;
    height: auto;
    display: block;
    object-fit: cover;
    border-radius: 8px;
}

.about-us-image{
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 8px;
    text-align: center;
}

@media (max-width: 768px){
    .about-us-images{ grid-template-columns: 1fr; }
    .intro-buttons{ justify-content: center; }
}

/* ==========================================================================
   6. WORKSHEET GRID (worksheet.html)
   ========================================================================== */

#worksheet-root{
    display: flex;
    justify-content: center;
    margin: 1rem 0 2rem;
}

.worksheet-cell{
    display: flex;
    justify-content: center;
    align-items: center;
    background: transparent;
    font-size: var(--fs-h2);
    position: relative;
}

.worksheet-grid{
    border: 4px solid var(--color-text);
}

.worksheet-cell.is-cursor{
    outline: 2px solid var(--color-primary);
    outline-offset: -2px;
    z-index: 1;
    animation: cursor-idle 1s linear infinite;
}

@keyframes cursor-idle{
    0%  { outline: 2px solid var(--color-primary); outline-offset: -2px; }
    50% { outline: 4px solid var(--color-primary); outline-offset:  0px; }
}

/* Operation visuals */
.worksheet-cell.underline{ border-bottom: 1px solid #000 !important; }
.worksheet-cell.result{ color: var(--color-primary); }
.worksheet-cell.result-correct{ color: var(--color-primary); }
.worksheet-cell.result-wrong{ color: var(--color-red); }
.worksheet-cell.box-selected{ background: var(--color-primary-bg-20); }

/* Carry/borrow scratch overlays — absolute-positioned on top-right of A-row cells */
.scratch-overlay{
    position: absolute;
    top: 2px;
    right: 2px;
    font-size: 1rem;
    color: #bbb;
    line-height: 1;
    pointer-events: none;
    min-width: 8px;
    text-align: center;
    border-radius: 2px;
}

.scratch-overlay.scratch-active{
    outline: 1px solid var(--color-primary);
    color: var(--color-primary);
}

/* Text row overlay — starts narrow, grows with content up to full row width */
.text-row-overlay{
    position: absolute;
    display: inline-flex;
    align-items: center;
    width: max-content;
    min-width: 2ch;
    padding: 0 8px;
    font-size: 1.5rem;
    color: var(--color-text);
    background: #fffef5;
    border: 1px dashed #ccc;
    box-sizing: border-box;
    pointer-events: none;
    white-space: pre;
    overflow: hidden;
    z-index: 0;
    border-radius: 3px;
}

.text-row-overlay.is-active{
    border-color: var(--color-primary);
    background: #f5fff8;
}

.text-row-caret{
    display: inline-block;
    width: 2px;
    height: 1.1em;
    background: var(--color-text);
    vertical-align: text-bottom;
    margin: 0 1px;
    animation: text-caret-blink 1s step-end infinite;
}

@keyframes text-caret-blink{
    0%, 100% { opacity: 1; }
    50%      { opacity: 0; }
}

/* ==========================================================================
   7. PRINT (worksheet.html export path)
   ========================================================================== */

@media print{
    @page{ size: A4 portrait; margin: var(--print-margin-mm, 10mm); }
    header, footer, nav, .button, button{ display: none !important; }
    .is-cursor{ outline: none !important; }
    body.container, .container{
        max-width: none !important;
        padding: 0 !important;
        margin: 0 !important;
    }
    #main-content, #worksheet-root{
        width: 100% !important;
        margin: 0 !important;
        padding: 0 !important;
        justify-content: flex-start;
    }
    .worksheet-grid{
        width: calc(var(--page-width-mm, 210mm) - 2 * var(--print-margin-mm, 10mm));
        grid-template-columns: repeat(var(--cols), 1fr) !important;
        grid-auto-rows: calc((var(--page-width-mm, 210mm) - 2 * var(--print-margin-mm, 10mm)) / var(--cols)) !important;
    }
    .worksheet-cell{
        border: none;
        width: auto !important;
        height: auto !important;
        font-size: calc((var(--page-width-mm, 210mm) - 2 * var(--print-margin-mm, 10mm)) / var(--cols) * 0.8) !important;
        line-height: 1 !important;
    }
    .scratch-overlay{
        color: #555 !important;
        font-weight: 600 !important;
    }
    .worksheet-cell.result-correct{ background: transparent !important; }
    .worksheet-cell.box-selected{ background: transparent !important; }
}