@import "/styles/constants.css";

/* Container for the title, card, and options */
#card-container {
    height: fit-content;
    grid-column: 2;
    width: min(100%, 880px);
    min-width: 0;
    justify-self: center;
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    grid-template-rows: none;
    margin: var(--space-3) 0 var(--space-4);
    z-index: 1;
    transition: margin var(--dur-med) var(--ease-out);

    background: none;
    border: 0;
    padding: var(--space-1) 0 var(--space-3);
}

/* Card-container when fullscreen */
#card-container.fullscreen {
    /* Fill exactly the viewport below the header so nothing needs scrolling */
    display: flex;
    flex-direction: column;
    height: calc(100dvh - var(--header-height) - 2 * var(--space-3));
    margin: var(--space-3) 0;
    box-sizing: border-box;
}

#card-container.fullscreen > * {
    flex-shrink: 0;
}

/* Card takes whatever height the other controls leave over */
#card-container.fullscreen #card {
    flex: 1 1 0;
    min-height: 140px;
    height: auto;
    width: 100%;
}

#card-container.fullscreen #category-title {
    margin: var(--space-2) 0 var(--space-1);
    font-size: clamp(1.2rem, 2.4vw, 1.6rem);
}

#card-container.fullscreen #tally-bar {
    margin-bottom: var(--space-2);
}

#card-container.fullscreen #progress-bar-container {
    margin-top: var(--space-3);
}

#card-container.fullscreen #grade-buttons,
#card-container.fullscreen #card-options {
    margin-top: var(--space-2);
}

#card-container.fullscreen #message {
    min-height: 0;
    margin-top: var(--space-1);
}

/* Flashcard set title */
#card-container #category-title {
    text-align: center;
    align-self: center;
    text-transform: capitalize;
    color: var(--ocean-deep);
    font-family: var(--font-display);
    font-weight: 700;
    line-height: 1.15;
    margin: var(--space-2) 0 var(--space-1);
    letter-spacing: 0;

    font-size: clamp(1.4rem, 2.6vw, 1.8rem);
}

/***********************************************
* Tally bar: pill counters
*************************************************/
#card-container #tally-bar {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-bottom: var(--space-2);
    color: var(--font-color);
    font-size: var(--fs-sm);
}

#card-container #tally-bar .tally {
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: var(--space-2);
    padding: 3px 12px 3px 22px;
    border: 2px solid var(--koa-soft);
    border-radius: 4px 14px 14px 4px;
    background-color: #fffdf6;
    color: var(--koa-soft);
    font-weight: 700;
}

#card-container #tally-bar .tally::before {
    content: "";
    position: absolute;
    left: 8px;
    top: 50%;
    width: 8px;
    height: 8px;
    margin-top: -4px;
    border-radius: 50%;
    background-color: var(--koa-soft);
}

#card-container #tally-bar .tally[hidden] {
    display: none;
}

#card-container #tally-bar .correct-tally::before {
    background-color: var(--leaf);
}

#card-container #tally-bar .incorrect-tally::before {
    background-color: var(--danger);
}

#card-container #tally-bar .tally strong {
    font-family: var(--font-display);
    font-size: 1.1em;
    color: var(--terracotta-dark);
    font-variant-numeric: tabular-nums;
}

/***********************************************
* Flashcard (3D flip)
*************************************************/
#card-container #card {
    position: relative;
    align-self: end;
    /* the other pieces (header, title, tally, progress, grade buttons, options) take ~400px, so the card gets the rest */
    /* the rope zone is part of this height, so the whole stack stays as tall as before the reskin */
    --rope: 28px;
    padding-top: var(--rope);
    height: clamp(200px, calc(100dvh - 400px), 480px);
    width: auto;
    perspective: 1400px;
    cursor: pointer;
    outline: none;
    touch-action: pan-y;
    user-select: none;
    -webkit-user-select: none;
    -webkit-tap-highlight-color: transparent;
    --tint: 0;
    transition: height var(--dur-med) var(--ease-out);
}

#card-container #card.dragging {
    cursor: grabbing;
}

#card-container #card:focus-visible .card-face {
    outline: 3px solid var(--terracotta);
    outline-offset: 4px;
}

/* Ground shadow: stretches and fades as the card turns over */
#card-container #card::after {
    content: "";
    position: absolute;
    z-index: -1;
    left: 10%;
    right: 10%;
    bottom: -14px;
    height: 22px;
    border-radius: 50%;
    background: radial-gradient(ellipse at center, color-mix(in srgb, var(--shadow-color) 55%, transparent), transparent 70%);
    filter: blur(4px);
    opacity: 0.6;
    pointer-events: none;
    animation: shadow-turn-a var(--dur-slow) var(--ease-out);
}

#card-container #card:has(.card-inner.flipped)::after {
    animation-name: shadow-turn-b;
}

#card-container #card .card-inner {
    position: relative;
    width: 100%;
    height: 100%;
    transform-style: preserve-3d;
    transition: transform var(--dur-slow) var(--ease-out);
    animation: flip-lift-a var(--dur-slow) var(--ease-out);
}

#card-container #card .card-inner.flipped {
    transform: rotateY(180deg);
    animation-name: flip-lift-b;
}

@keyframes flip-lift-a {
    0%, 100% { scale: 1; }
    45%      { scale: 1.045; }
}

@keyframes flip-lift-b {
    0%, 100% { scale: 1; }
    45%      { scale: 1.045; }
}

@keyframes shadow-turn-a {
    0%, 100% { transform: scaleX(1); opacity: 0.6; }
    50%      { transform: scaleX(0.55) translateY(10px); opacity: 0.3; }
}

@keyframes shadow-turn-b {
    0%, 100% { transform: scaleX(1); opacity: 0.6; }
    50%      { transform: scaleX(0.55) translateY(10px); opacity: 0.3; }
}

#card-container #card .card-face {
    position: absolute;
    inset: 0; /* .card-inner already starts below the rope zone (#card padding-top) */
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    padding: var(--space-5) var(--space-4) var(--space-6);
    text-align: center;
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;

    /* Koa plank: wood grain + two nail heads (the ropes are the ::before) */
    background:
        radial-gradient(circle at 35% 30%, #d9c3a4, #6a5240) 14px 12px / 12px 12px no-repeat,
        radial-gradient(circle at 35% 30%, #d9c3a4, #6a5240) calc(100% - 14px) 12px / 12px 12px no-repeat,
        repeating-linear-gradient(92deg, rgba(255, 255, 255, .05) 0 2px, transparent 2px 9px),
        repeating-linear-gradient(88deg, rgba(0, 0, 0, .14) 0 1px, transparent 1px 16px),
        linear-gradient(180deg, #4a2f20, var(--koa));
    border: 2px solid #24150d;
    border-radius: 14px;
    box-shadow: inset 0 2px 0 rgba(255, 255, 255, .12), inset 0 -6px 0 rgba(0, 0, 0, .28),
                0 16px 26px -10px color-mix(in srgb, var(--koa) 55%, transparent);

    color: var(--plumeria-soft);
    font-family: var(--font-display);
    /* long entries wrap at spaces and slashes; a single over-long word only breaks as a last resort */
    font-size: clamp(1.9rem, 5.4vw, 3.2rem);
    font-weight: 700;
    line-height: 1.15;
    letter-spacing: 0.01em;
    text-shadow: 0 -2px 0 rgba(0, 0, 0, .55), 0 2px 0 rgba(255, 255, 255, .12);
    text-rendering: optimizeLegibility;
    font-kerning: normal;
    overflow-wrap: anywhere; /* anywhere (not break-word) so a long entry shrinks the flex item instead of clipping */
    hyphens: manual;
    text-wrap: balance;
}

/* Two ropes hanging the plank; they belong to the face, so they turn with the card */
#card-container #card .card-face::before {
    content: "";
    position: absolute;
    top: calc(-1 * var(--rope, 28px) - 2px);
    left: 0;
    right: 0;
    height: calc(var(--rope, 28px) + 10px);
    background:
        linear-gradient(var(--koa-soft), var(--koa-soft)) 18% 0 / 4px 100% no-repeat,
        linear-gradient(var(--koa-soft), var(--koa-soft)) 82% 0 / 4px 100% no-repeat;
    pointer-events: none;
}

/* Small hint on the card face */
#card-container #card .card-face::after {
    position: absolute;
    bottom: var(--space-3);
    left: 0;
    right: 0;
    font-family: var(--font-sans);
    font-size: var(--fs-xs);
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
    text-shadow: none;
    color: var(--plumeria);
    opacity: 1;
}

#card-container #card .card-face.front::after {
    content: "Tap to reveal";
}

#card-container #card .card-face.back::after {
    content: "Tap to flip back";
}

/* Answer side: a lighter koa so the flip still reads as turning the plank over */
#card-container #card .card-face.back {
    transform: rotateY(180deg);
    background:
        radial-gradient(circle at 35% 30%, #d9c3a4, #6a5240) 14px 12px / 12px 12px no-repeat,
        radial-gradient(circle at 35% 30%, #d9c3a4, #6a5240) calc(100% - 14px) 12px / 12px 12px no-repeat,
        repeating-linear-gradient(92deg, rgba(255, 255, 255, .07) 0 2px, transparent 2px 9px),
        repeating-linear-gradient(88deg, rgba(0, 0, 0, .12) 0 1px, transparent 1px 16px),
        linear-gradient(180deg, #8a5a3c, #6b4430);
    color: #fff6e8;
}

#card-container #card:hover .card-face.front {
    filter: brightness(1.08);
}

#card-container #card:hover .card-face.back {
    filter: brightness(1.06);
}

/***********************************************
* Drag / grade feedback: edge glow + stamp
*************************************************/
#card-container #card .card-tint {
    position: absolute;
    inset: var(--rope, 28px) 0 0;
    border-radius: 14px;
    pointer-events: none;
    opacity: min(1, calc(var(--tint) * 1.6));
    --glow: var(--sea);
}

#card-container #card.tint-correct .card-tint {
    --glow: var(--correct-color);
}

#card-container #card.tint-incorrect .card-tint {
    --glow: var(--incorrect-color);
}

#card-container #card.tint-correct .card-tint,
#card-container #card.tint-incorrect .card-tint {
    box-shadow:
        inset 0 0 0 4px var(--glow),
        inset 0 0 44px color-mix(in srgb, var(--glow) 60%, transparent),
        0 0 14px color-mix(in srgb, var(--glow) 55%, transparent);
    background-color: color-mix(in srgb, var(--glow) 14%, transparent);
}

#card-container #card .card-tint::after {
    position: absolute;
    top: 10%;
    display: grid;
    place-items: center;
    width: 4.5rem;
    height: 4.5rem;
    border: 5px solid var(--glow);
    border-radius: 50%;
    background-color: var(--sand-soft);
    color: var(--glow);
    font-size: 2.6rem;
    font-weight: 700;
    line-height: 1;
    scale: calc(0.6 + var(--tint) * 0.7);
}

#card-container #card.tint-correct .card-tint::after {
    content: "\2713";
    left: 8%;
    rotate: -14deg;
}

#card-container #card.tint-incorrect .card-tint::after {
    content: "\2717";
    right: 8%;
    rotate: 14deg;
}

/* Existing grade of the card being viewed */
#card-container #card .card-badge {
    position: absolute;
    top: calc(var(--rope, 28px) + var(--space-4));
    right: var(--space-3);
    width: 34px;
    height: 34px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    font-weight: 700;
    color: white;
    pointer-events: none;
    box-shadow: var(--shadow-md);
    animation: badge-pop var(--dur-med) var(--ease-out);
}

@keyframes badge-pop {
    from { scale: 0.4; opacity: 0; }
    to   { scale: 1; opacity: 1; }
}

#card-container #card .card-badge[hidden] {
    display: none;
}

#card-container #card .card-badge.correct {
    background-color: var(--correct-color);
}

#card-container #card .card-badge.incorrect {
    background-color: var(--incorrect-color);
    color: white;
}

/***********************************************
* Progress bar
*************************************************/
#card-container #progress-bar-container {
    background-color: #fffdf6;
    width: auto;
    height: 22px;
    margin-top: var(--space-3);
    border: 3px solid var(--koa-soft);
    border-radius: var(--radius-pill);
    overflow: hidden;
}

#card-container #progress-bar-container #progress-bar {
    background: var(--leaf);
    height: 100%;
    width: 0%;
    border-radius: var(--radius-pill);
    transition: width var(--dur-med) var(--ease-out);
}

/***********************************************
* Grade buttons
*************************************************/
#card-container #grade-buttons {
    display: flex;
    justify-content: center;
    gap: var(--space-3);
    margin-top: var(--space-3);
}

#card-container #grade-buttons button,
#card-container #summary-actions button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    min-height: 56px;
    margin-bottom: 4px;
    padding: var(--space-2) var(--space-5);
    border: 3px solid var(--koa-soft);
    border-radius: 14px;
    background-color: #fffdf6;
    color: var(--koa);
    font-size: 1.05rem;
    font-weight: 700;
    cursor: pointer;
    transition: background-color var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) ease;
}

#card-container #grade-buttons button:hover,
#card-container #summary-actions button:hover {
    background-color: var(--plumeria-soft);
}

#card-container #grade-buttons button:active,
#card-container #summary-actions button:active {
}

#card-container #grade-buttons button:focus-visible,
#card-container #summary-actions button:focus-visible,
#card-container #card-options button:focus-visible {
    outline: 2px solid var(--terracotta);
    outline-offset: 2px;
}

#card-container #grade-buttons button:focus-visible,
#card-container #summary-actions button:focus-visible {
    box-shadow: 0 4px 0 var(--koa-soft);
}

#card-container .grade-icon {
    display: inline-grid;
    place-items: center;
    width: 26px;
    height: 26px;
    border-radius: 50%;
    font-size: 0.95rem;
    line-height: 1;
}

/* btn-ok / btn-no look: solid success / danger pills, white text */
#card-container #grade-buttons #grade-correct {
    background-color: var(--correct-color);
    color: #fff;
}

#card-container #grade-correct .grade-icon,
#card-container #grade-incorrect .grade-icon {
    background-color: rgba(255, 255, 255, .22);
    color: white;
}

#card-container #grade-buttons #grade-correct:hover {
    background-color: #255a30;
}

#card-container #grade-buttons #grade-incorrect {
    background-color: var(--incorrect-color);
    color: #fff;
}

#card-container #grade-buttons #grade-incorrect:hover {
    background-color: #861d17;
}

/***********************************************
* Deck-end summary replaces the card
*************************************************/
#card-container #deck-summary {
    text-align: center;
    margin: var(--space-4) 0 0;
    padding: var(--space-6) var(--space-4);
    color: var(--font-color);
    background-color: var(--sand-soft);
    border: 1px solid rgba(58, 36, 24, .07);
    border-radius: var(--r-xl);
    box-shadow: var(--shadow-lift);
    animation: summary-in var(--dur-slow) var(--ease-out) both;
}

@keyframes summary-in {
    from { opacity: 0; transform: translateY(16px) scale(0.94); }
    to   { opacity: 1; transform: none; }
}

#card-container #deck-summary[hidden],
#card-container #deck-summary [hidden] {
    display: none;
}

#card-container #deck-summary h2 {
    margin: var(--space-2) 0 0;
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    color: var(--ocean-deep);
}

#card-container .summary-mark {
    display: grid;
    place-items: center;
    width: 64px;
    height: 64px;
    margin: 0 auto;
    border-radius: 50%;
    background-color: var(--correct-color);
    color: white;
    font-size: 2rem;
    box-shadow: 0 0 0 8px color-mix(in srgb, var(--correct-color) 22%, transparent);
    animation: badge-pop var(--dur-slow) var(--ease-out) 120ms both;
}

#card-container #summary-score {
    display: inline-block;
    font-size: clamp(1.1rem, 2.5vw, 1.4rem);
    font-weight: 700;
    margin: var(--space-4) 0 var(--space-1);
    padding: var(--space-2) var(--space-4);
    border-radius: var(--radius-pill);
    background-color: var(--ocean-mist);
    border: 1px solid rgba(58, 36, 24, .07);
    color: var(--ocean-deep);
}

#card-container #summary-ungraded {
    margin: var(--space-2) 0 0;
    font-size: var(--fs-sm);
}

#card-container #summary-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: var(--space-3);
    margin-top: var(--space-5);
}

#card-container #review-missed-note {
    margin: var(--space-3) 0 0;
    font-size: var(--fs-sm);
}

#card-container #review-missed-note[hidden] {
    display: none;
}

#card-container.summarizing #card,
#card-container.summarizing #progress-bar-container,
#card-container.summarizing #grade-buttons {
    display: none;
}

/***********************************************
* Options row
*************************************************/
#card-container #card-options {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-2);
    margin: var(--space-3) 0 0;
}

/* Right-side spacer: the left side holds 3 option buttons and the right only the "How it works"
   and fullscreen buttons, so this adds the difference (1 button + 1 gap; the flex gap around the
   spacer supplies the gap) to keep the navigation centered on the container */
#card-container #card-options::after {
    content: "";
    order: 1;
    width: calc(104px + var(--space-2));   /* the switch (104px, plus one gap) balances the left side */
}

#card-container #tutorial-button,
#card-container #fullscreen-button {
    order: 2;
}

/* container for navigating set buttons (restart, back, progress, next, shuffle) */
#card-container #card-navigation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    margin: 0 auto;
}

#card-container #card-options #card-navigation #num-progress {
    color: var(--font-color);
    font-size: var(--fs-sm);
    font-weight: 700;
    text-align: center;
    white-space: nowrap;
    font-variant-numeric: tabular-nums;
    min-width: 64px;
    padding: 0 var(--space-2);
    margin: 0;
}

#card-container #card-options button {
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 0;
    margin: 0 0 4px;
    border: 3px solid var(--koa-soft);
    background-color: #fffdf6;
    border-radius: 14px;
    cursor: pointer;
    transition: background-color var(--dur-fast) ease, transform var(--dur-fast) var(--ease-out),
                box-shadow var(--dur-fast) ease;
}

#card-container #card-options button img {
    width: 24px;
    height: 24px;
}

#card-container #card-options button:hover:not(:disabled) {
    background-color: var(--plumeria-soft);
}

#card-container #card-options button:disabled {
    opacity: .5;
    cursor: not-allowed;
}

#card-container #card-options button:active:not(:disabled) {
}

#card-container #card-options button:focus-visible {
    box-shadow: 0 4px 0 var(--koa-soft);
}

#card-container #message:empty {
    display: none;
}

#card-container #message {
    min-height: 1.2em;
    margin: var(--space-1) 0 0;
    text-align: center;
    font-weight: 600;
    color: var(--correct-color);
}

/***********************************************
* Small screens
*************************************************/
@media (max-width: 760px) {
    #card-container {
        margin: var(--space-4) 0 var(--space-5);
        width: auto;
        padding: var(--space-2) var(--space-3) var(--space-4);
        justify-self: stretch;
    }

    #card-container.fullscreen {
        margin: var(--space-3) 0;
    }

    #card-container #card {
        /* stacked options row + wrapped tally need ~70px more on small screens */
        height: clamp(165px, calc(100dvh - 478px), 380px);
    }

    #card-container #card-options #card-navigation {
        order: 3;
        flex: 1 0 100%;
    }

    #card-container #card-options::after {
        display: none;
    }

    #card-container #tally-bar {
        gap: var(--space-1);
        font-size: var(--fs-xs);
    }

    #card-container #tally-bar .tally {
        gap: var(--space-1);
        padding: 3px 4px 3px 8px;
    }

    #card-container #tally-bar .tally strong {
        min-width: 22px;
        padding: 0 6px;
    }

    #card-container #tally-bar .tally::before {
        display: none;
    }

    #card-container #grade-buttons button {
        flex: 1 1 0;
        padding-inline: var(--space-3);
    }
}

@media (prefers-reduced-motion: reduce) {
    #card-container #card .card-inner,
    #card-container #card::after,
    #card-container #deck-summary,
    #card-container .summary-mark,
    #card-container #card .card-badge,
    #card-container #progress-bar-container #progress-bar {
        animation: none;
        transition: none;
    }

    #card-container #grade-buttons button:active,
    #card-container #summary-actions button:active,
    #card-container #card-options button:hover,
    #card-container #card-options button:active:not(:disabled) {
        transform: none;
    }
}

/* Touch targets: option buttons are 48x48 chunky tiles */
#card-container #card-options button {
    min-width: 48px;
    min-height: 48px;
    justify-content: center;
    align-items: center;
}

#card-container {
    grid-row: 1;
}

/* Empty-deck hint on the card front */
#card-container #card .card-face.front.card-hint {
    font-size: var(--fs-xl);
    font-weight: 600;
    opacity: .75;
}

/* Narrow phones: 44px nav buttons need tighter gaps to fit (and may wrap as a fallback) */
@media (max-width: 420px) {
    #card-container #card-options #card-navigation {
        gap: var(--space-1);
        flex-wrap: wrap;
    }

    /* 40px visually, 44px hit area via the 2px ::before extension into the gaps */
    #card-container #card-options #card-navigation button {
        position: relative;
        min-width: 44px;
    }

    #card-container #card-options #card-navigation button::before {
        content: "";
        position: absolute;
        inset: 0 -2px; /* hit area extends 2px into each 4px gap, so neighbours never overlap */
    }
    /* the "1 / 19" counter drops its fixed width so the row fits */
    #card-container #card-options #card-navigation #num-progress {
        min-width: 0;
        padding: 0 var(--space-1);
        font-size: var(--fs-xs);
    }
}


/* Options row: below ~1000px the single row (3 buttons + navigation + fullscreen) no longer fits beside the
   sidebar, so use the stacked layout earlier instead of orphaning the fullscreen tile on a third row */
@media (max-width: 1000px) {
    #card-container #card-options #card-navigation {
        order: 3;
        flex: 1 0 100%;
    }

    #card-container #card-options::after {
        display: none;
    }
}

/* Very narrow phones: let the grade buttons shrink so they never push past the container */
@media (max-width: 420px) {
    #card-container #card .card-face {
        padding-inline: var(--space-3);
    }
}

@media (max-width: 360px) {
    #card-container #grade-buttons button {
        min-width: 0;
        padding-inline: var(--space-2);
    }
}

/* Phones: smaller face text so "wonderful/marvelous" fits on one line or wraps sensibly,
   and the "tap" hint is dropped (it collides with a wrapped answer on a short plank) */
@media (max-width: 420px) {
    #card-container #card .card-face {
        font-size: clamp(1.45rem, 7vw, 2rem);
        padding-block: var(--space-4);
    }

    #card-container #card .card-face::after {
        display: none;
    }
}

/* Short fullscreen viewports: shorter ropes and card so the options row stays on screen */
@media (max-height: 620px) {
    #card-container.fullscreen #card {
        --rope: 20px;
        min-height: 120px;
    }

    #card-container.fullscreen #card .card-face::after {
        display: none;
    }
}

/***********************************************
* Spaced repetition: toggle pressed state, loading, "all caught up"
*************************************************/
#card-container #card-options button[aria-disabled="true"] {
    opacity: .5;
    cursor: not-allowed;
}

#card-container #card .card-face.front.card-loading {
    font-size: var(--fs-xl);
    font-weight: 600;
    opacity: .75;
}

#card-container #caught-up {
    text-align: center;
    margin: var(--space-4) 0 0;
    padding: var(--space-6) var(--space-4);
    color: var(--font-color);
    background-color: var(--sand-soft);
    border: 1px solid rgba(58, 36, 24, .07);
    border-radius: var(--r-xl);
}

#card-container #caught-up[hidden] {
    display: none;
}

#card-container #caught-up h2 {
    margin: 0;
    font-family: var(--font-display);
    font-size: var(--fs-xl);
    color: var(--ocean-deep);
}

#card-container #next-due {
    margin: var(--space-2) 0 0;
    font-weight: 600;
}

#card-container #study-full-set {
    min-height: 48px;
    margin-top: var(--space-4);
    padding: 0 var(--space-5);
    border: 3px solid var(--koa-soft);
    border-radius: 14px;
    background-color: #fffdf6;
    color: var(--font-color);
    font: inherit;
    font-weight: 600;
    cursor: pointer;
    transition: background-color var(--dur-fast) ease;
}

#card-container #study-full-set:hover {
    background-color: var(--plumeria-soft);
}

#card-container #study-full-set:focus-visible {
    outline: 2px solid var(--terracotta);
    outline-offset: 2px;
}

#card-container.caught-up-open #card,
#card-container.caught-up-open #progress-bar-container,
#card-container.caught-up-open #grade-buttons {
    display: none;
}