/* ==========================================================================
   O'QUV KARTOCHKASI (.krt) — ikki bosqich: flesh-kartalar → nazorat topshiriqlari.
   Ramka (sarlavha, rejim tugmalari, yon panel) sxema ish stolining .sxy-* / .sxy__panel
   uslublarini qayta ishlatadi; bu fayl faqat karta va topshiriqlarning o'ziga tegishli.
   Tur rangi — teal (didaktik.css dagi [data-tur="kartochka"] palitrasi bilan bir xil).
   ========================================================================== */
.krt {
    --krt: #2b9457;
    --krt-soft: rgba(43, 148, 87, 0.12);
    --krt-border: rgba(43, 148, 87, 0.34);
    --ok: #2b9457;
    --bad: #cf4a37;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - var(--navbar-height));
    padding: .75rem 0 1.5rem;
}
.krt__container { display: flex; flex-direction: column; flex: 1; min-height: 0; max-width: 1280px; }
.krt__head { flex-shrink: 0; }
.krt__head .breadcrumb--tight { margin-bottom: .5rem !important; }
.krt__head .xarita-bar { margin-bottom: 1rem; align-items: center; }
.krt__head .xarita-bar__title h1 { font-size: clamp(1rem, 1.5vw, 1.25rem); }

.krt__body {
    flex: 1;
    min-height: 0;
    display: grid;
    grid-template-columns: minmax(0, 1fr) 340px;
    gap: 1rem;
    align-items: stretch;
}
.krt__stage {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 520px;
    padding: clamp(1.25rem, 3vw, 2.5rem);
    border-radius: var(--radius-2xl);
    background: radial-gradient(ellipse at 50% 0%, rgba(43, 148, 87, 0.08), transparent 60%),
                var(--qogoz-2);
    border: 1px solid var(--chiziq);
    backdrop-filter: blur(var(--blur-md));
    -webkit-backdrop-filter: blur(var(--blur-md));
}
.krt__side { min-height: 0; display: flex; flex-direction: column; }
.krt-panel__text { margin: 0; font-size: .86rem; line-height: 1.55; color: var(--text-secondary); }
.krt-panel__text--note {
    display: flex; gap: .45rem; align-items: flex-start;
    padding: .6rem .75rem; border-radius: var(--radius-md);
    background: rgba(15, 31, 56, 0.04); border: 1px dashed var(--surface-glass-border);
    color: var(--text-tertiary);
}
.krt-panel__text--note svg { width: 15px; height: 15px; flex-shrink: 0; margin-top: 2px; color: var(--krt); }
.krt-panel__facts { display: flex; gap: 1.25rem; font-size: .82rem; color: var(--text-tertiary); }
.krt-panel__facts b { font-family: var(--font-display); font-size: 1.2rem; color: var(--text-primary); margin-right: .25rem; }

/* progress nuqtalari */
.krt-progress { display: flex; flex-wrap: wrap; gap: 5px; }
.krt-progress i {
    width: 14px; height: 6px; border-radius: 3px;
    background: rgba(15, 31, 56, 0.12);
    transition: background .3s ease, transform .3s var(--ease-spring);
}
.krt-progress i.is-now  { background: var(--krt); transform: scaleY(1.5); box-shadow: 0 0 10px var(--krt-soft); }
.krt-progress i.is-done { background: rgba(43, 148, 87, 0.6); }
.krt-progress i.is-ok   { background: var(--ok); }
.krt-progress i.is-bad  { background: var(--bad); }

/* --- flesh-karta --- */
.krt-deck { width: 100%; max-width: 620px; display: flex; flex-direction: column; align-items: center; gap: 1.25rem; }
.krt-deck__stack { position: relative; width: 100%; height: 0; }
.krt-deck__stack i {
    position: absolute; left: 4%; right: 4%; top: 10px; height: 40px;
    border-radius: var(--radius-xl);
    background: rgba(15, 31, 56, 0.05);
    border: 1px solid var(--surface-glass-border);
}
.krt-deck__stack i + i { left: 8%; right: 8%; top: 18px; background: rgba(15, 31, 56, 0.03); }

.krt-card {
    appearance: none; border: 0; background: none; padding: 0; margin: 0;
    position: relative;
    width: 100%;
    min-height: 340px;
    perspective: 1400px;
    cursor: pointer;
    text-align: left;
    color: inherit;
    font: inherit;
    transition: transform .26s var(--ease-out), opacity .26s ease;
}
.krt-card:focus-visible { outline: 2px solid var(--krt); outline-offset: 6px; border-radius: var(--radius-xl); }
.krt-card__inner {
    position: relative;
    width: 100%;
    min-height: 340px;
    transform-style: preserve-3d;
    transition: transform .7s cubic-bezier(.4, 0, .2, 1);
}
.krt-card.is-flipped .krt-card__inner { transform: rotateY(180deg); }
.krt-card__face {
    position: absolute;
    inset: 0;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    padding: clamp(1.5rem, 3vw, 2.25rem);
    border-radius: var(--radius-xl);
    backface-visibility: hidden;
    -webkit-backface-visibility: hidden;
    overflow: hidden;
}
.krt-card__face--front {
    background: linear-gradient(150deg, rgba(43, 148, 87, 0.16), rgba(29, 95, 214, 0.06) 55%, transparent),
                var(--surface-glass-strong);
    border: 1px solid var(--krt-border);
    box-shadow: var(--shadow-lg), 0 0 60px rgba(43, 148, 87, 0.12);
}
.krt-card__face--back {
    transform: rotateY(180deg);
    background: #f7fbf9;
    color: #0f172a;
    border: 1px solid rgba(29, 95, 214, 0.35);
    box-shadow: var(--shadow-lg), 0 0 60px rgba(43, 148, 87, 0.2);
}
.krt-card__eyebrow {
    display: inline-flex; align-items: center; gap: .4rem; align-self: flex-start;
    font-size: .7rem; font-weight: 600; letter-spacing: .14em; text-transform: uppercase;
    color: var(--krt);
}
.krt-card__face--back .krt-card__eyebrow { color: #164683; }
.krt-card__eyebrow svg { width: 14px; height: 14px; }
.krt-card__text {
    margin: auto 0;
    font-family: var(--font-display);
    font-size: clamp(1.15rem, 2vw, 1.5rem);
    line-height: 1.35;
    color: var(--text-primary);
}
.krt-card__hint {
    display: inline-flex; align-items: center; gap: .35rem;
    font-size: .78rem; color: var(--text-tertiary);
}
.krt-card__hint svg { width: 13px; height: 13px; }
.krt-card__answer { margin: auto 0; font-size: clamp(1rem, 1.5vw, 1.15rem); line-height: 1.6; color: var(--siyoh); }
.krt-card__list { margin: 0; padding: 0 0 0 1.15rem; display: flex; flex-direction: column; gap: .35rem; font-size: .98rem; line-height: 1.45; color: var(--siyoh); }
.krt-card__list li::marker { color: var(--kok); }

/* karta chiqib ketishi */
.krt-card.is-leaving-right { transform: translateX(60px) rotate(3deg); opacity: 0; }
.krt-card.is-leaving-left  { transform: translateX(-60px) rotate(-3deg); opacity: 0; }

.krt-deck__actions {
    display: flex; gap: .75rem; flex-wrap: wrap; justify-content: center;
    opacity: .35; pointer-events: none;
    transition: opacity .3s ease;
}
.krt-deck__actions.is-ready { opacity: 1; pointer-events: auto; }
.krt-btn svg { width: 16px; height: 16px; }
.krt-btn--bildim { min-width: 160px; }

/* to'plam tugadi / natija */
.krt-done, .krt-result { text-align: center; max-width: 460px; display: flex; flex-direction: column; align-items: center; gap: .75rem; }
.krt-done h2, .krt-result h2 { font-family: var(--font-display); font-size: 1.5rem; margin: 0; }
.krt-done p, .krt-result p { margin: 0; color: var(--text-secondary); line-height: 1.6; }
.krt-done__icon { display: grid; place-items: center; width: 64px; height: 64px; border-radius: 50%; background: var(--krt-soft); border: 1px solid var(--krt-border); color: var(--krt); }
.krt-done__icon svg { width: 28px; height: 28px; }
.krt-done__actions { display: flex; gap: .6rem; flex-wrap: wrap; justify-content: center; margin-top: .5rem; }
.krt-done__actions .btn svg { width: 16px; height: 16px; }

.krt-result__ring {
    --p: 0;
    display: grid; place-items: center; position: relative;
    width: 150px; height: 150px; border-radius: 50%;
    background: conic-gradient(var(--krt) calc(var(--p) * 1%), rgba(15, 31, 56, 0.08) 0);
    animation: krt-ring 1s var(--ease-out) both;
}
.krt-result__ring::before { content: ''; position: absolute; inset: 10px; border-radius: 50%; background: var(--surface-deep); }
.krt-result__ring b, .krt-result__ring small { position: relative; }
.krt-result__ring b { font-family: var(--font-display); font-size: 2rem; line-height: 1; }
.krt-result__ring small { font-size: .8rem; color: var(--text-tertiary); }
@keyframes krt-ring { from { transform: scale(.8); opacity: 0; } to { transform: scale(1); opacity: 1; } }

/* --- topshiriqlar --- */
.krt-task { width: 100%; max-width: 720px; display: flex; flex-direction: column; gap: 1.1rem; }
.krt-task__head { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }
.krt-task__num { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; color: var(--krt); }
.krt-task__num small { font-size: .85rem; color: var(--text-tertiary); font-weight: 500; }
.krt-task__kind {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .35rem .8rem; border-radius: var(--radius-pill);
    font-size: .74rem; font-weight: 600; letter-spacing: .1em; text-transform: uppercase;
    color: var(--text-secondary); background: rgba(15, 31, 56, 0.04); border: 1px solid var(--surface-glass-border);
}
.krt-task__kind svg { width: 13px; height: 13px; color: var(--krt); }
.krt-task__lead { margin: 0; font-size: .88rem; color: var(--text-tertiary); }
.krt-task__q { font-family: var(--font-display); font-size: clamp(1.1rem, 1.8vw, 1.4rem); line-height: 1.4; margin: 0; }
.krt-task__q--gap { line-height: 1.8; }
.krt-task__note { display: flex; gap: .45rem; align-items: center; margin: 0; font-size: .85rem; color: var(--color-accent); }
.krt-task__note svg { width: 15px; height: 15px; }
.krt-task__foot { display: flex; align-items: center; justify-content: space-between; gap: 1rem; flex-wrap: wrap; min-height: 48px; }
.krt-task__foot .btn svg { width: 16px; height: 16px; }
.krt-task__foot > .btn:only-child { margin-left: auto; }

.krt-options { display: grid; gap: .6rem; }
.krt-options--tn { grid-template-columns: 1fr 1fr; }
.krt-option {
    display: flex; align-items: center; gap: .85rem;
    padding: .9rem 1.1rem; text-align: left;
    border-radius: var(--radius-lg);
    background: var(--surface-glass); border: 1px solid var(--surface-glass-border);
    color: var(--text-primary); font: inherit; font-size: .98rem; line-height: 1.4;
    cursor: pointer;
    transition: border-color .2s ease, background .2s ease, transform .2s var(--ease-out);
}
.krt-option:not(:disabled):hover { border-color: var(--krt-border); background: var(--surface-glass-strong); transform: translateX(3px); }
.krt-option:disabled { cursor: default; }
.krt-option__key {
    display: grid; place-items: center; flex-shrink: 0;
    width: 30px; height: 30px; border-radius: 50%;
    font-family: var(--font-display); font-weight: 700; font-size: .85rem;
    background: rgba(15, 31, 56, 0.06); border: 1px solid var(--surface-glass-border);
}
.krt-option svg { width: 18px; height: 18px; flex-shrink: 0; }
.krt-options--tn .krt-option { justify-content: center; font-family: var(--font-display); font-weight: 600; }
.krt-option--true svg { color: var(--ok); }
.krt-option--false svg { color: var(--bad); }

.krt-option.is-correct, .krt-chip.is-correct, .krt-match__item.is-correct, .krt-order__item.is-correct {
    border-color: var(--ok) !important; background: rgba(43, 148, 87, 0.14) !important; opacity: 1 !important;
}
.krt-option.is-correct .krt-option__key { background: var(--ok); color: #fff; border-color: var(--ok); }
.krt-option.is-wrong, .krt-chip.is-wrong, .krt-match__item.is-wrong, .krt-order__item.is-wrong {
    border-color: var(--bad) !important; background: rgba(207, 74, 55, 0.12) !important; opacity: 1 !important;
    animation: sxy-shake .45s ease;
}
.krt-task.is-answered .krt-option:not(.is-correct):not(.is-wrong),
.krt-task.is-answered .krt-chip:not(.is-correct):not(.is-wrong) { opacity: .45; }

/* bo'sh joy */
.krt-gap {
    display: inline-block; min-width: 5.5rem; margin: 0 .25rem; padding: 0 .6rem;
    border-bottom: 2px dashed var(--krt-border); color: var(--krt);
    text-align: center; transition: color .2s ease, border-color .2s ease;
}
.krt-gap.is-ok  { color: var(--ok); border-bottom-style: solid; border-color: var(--ok); }
.krt-gap.is-bad { color: var(--bad); border-bottom-style: solid; border-color: var(--bad); text-decoration: line-through; }
.krt-chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.krt-chip {
    padding: .55rem 1.05rem; border-radius: var(--radius-pill);
    background: var(--krt-soft); border: 1px solid var(--krt-border); color: var(--text-primary);
    font: inherit; font-weight: 500; cursor: pointer;
    transition: transform .2s var(--ease-spring), background .2s ease;
}
.krt-chip:not(:disabled):hover { transform: translateY(-2px); background: rgba(43, 148, 87, 0.22); }
.krt-chip:disabled { cursor: default; }

/* moslashtirish */
.krt-match { display: grid; grid-template-columns: 1fr 1fr; gap: .6rem 1.25rem; }
.krt-match__col { display: flex; flex-direction: column; gap: .6rem; }
.krt-match__item, .krt-order__item {
    display: flex; align-items: center; gap: .7rem;
    padding: .75rem .9rem; text-align: left;
    border-radius: var(--radius-lg);
    background: var(--surface-glass); border: 1px solid var(--surface-glass-border);
    color: var(--text-primary); font: inherit; font-size: .92rem; line-height: 1.35; cursor: pointer;
    transition: border-color .2s ease, background .2s ease, transform .2s var(--ease-out);
}
.krt-match__item:not(:disabled):hover, .krt-order__item:not(:disabled):hover { border-color: var(--krt-border); background: var(--surface-glass-strong); }
.krt-match__item:disabled, .krt-order__item:disabled { cursor: default; }
.krt-match__item b, .krt-order__item b {
    display: grid; place-items: center; flex-shrink: 0;
    width: 26px; height: 26px; border-radius: 50%;
    font-family: var(--font-display); font-size: .8rem; font-weight: 700;
    background: rgba(15, 31, 56, 0.06); border: 1px solid var(--surface-glass-border);
}
.krt-match__item[data-right] { justify-content: space-between; }
.krt-match__item[data-right] b:empty { opacity: .25; }
.krt-match__item.is-selected { border-color: var(--krt); background: var(--krt-soft); box-shadow: 0 0 0 3px rgba(43, 148, 87, 0.15); }
.krt-match__item.is-paired { border-color: rgba(43, 148, 87, 0.5); }
.krt-match__item.is-paired b, .krt-order__item.is-picked b { background: var(--krt); color: #fff; border-color: var(--krt); }

/* tartib */
.krt-order { display: flex; flex-direction: column; gap: .6rem; }
.krt-order__item.is-picked { border-color: rgba(43, 148, 87, 0.5); }

/* amaliy */
.krt-check { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .5rem; }
.krt-check label {
    display: flex; align-items: center; gap: .8rem; padding: .75rem .9rem;
    border-radius: var(--radius-lg); background: var(--surface-glass); border: 1px solid var(--surface-glass-border);
    cursor: pointer; transition: border-color .2s ease;
}
.krt-check label:hover { border-color: var(--krt-border); }
.krt-check input { width: 18px; height: 18px; accent-color: var(--krt); }
.krt-check input:checked + span { color: var(--text-tertiary); text-decoration: line-through; }

/* javob xulosasi */
.krt-verdict {
    display: inline-flex; align-items: center; gap: .5rem;
    padding: .55rem .9rem; border-radius: var(--radius-pill);
    font-size: .88rem; font-weight: 500;
    animation: dm-rise .35s var(--ease-out) both;
}
.krt-verdict svg { width: 16px; height: 16px; flex-shrink: 0; }
.krt-verdict.is-ok { color: var(--ok); background: rgba(43, 148, 87, 0.12); border: 1px solid rgba(43, 148, 87, 0.35); }
.krt-verdict.is-bad { color: #fecaca; background: rgba(207, 74, 55, 0.12); border: 1px solid rgba(207, 74, 55, 0.35); }
.krt-verdict.is-bad svg { color: var(--bad); }
.krt-verdict.is-neutral { color: var(--text-secondary); background: rgba(15, 31, 56, 0.05); border: 1px solid var(--surface-glass-border); }

/* yon paneldagi qadamlar ro'yxati */
.krt-steps { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: .3rem; overflow-y: auto; min-height: 0; scrollbar-width: thin; }
.krt-steps button {
    display: flex; flex-direction: column; gap: 1px; width: 100%; text-align: left;
    padding: .5rem .7rem .5rem 1.1rem; border-radius: var(--radius-md);
    background: none; border: 1px solid transparent; color: var(--text-secondary); font: inherit; font-size: .82rem; cursor: pointer;
    position: relative; transition: background .2s ease;
}
.krt-steps button::before { content: ''; position: absolute; left: .35rem; top: 50%; width: 5px; height: 5px; border-radius: 50%; transform: translateY(-50%); background: rgba(15, 31, 56, 0.2); }
.krt-steps button small { font-size: .74rem; color: var(--text-tertiary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 100%; }
.krt-steps button:hover { background: rgba(15, 31, 56, 0.04); }
.krt-steps li.is-now button { background: var(--krt-soft); border-color: var(--krt-border); color: var(--text-primary); }
.krt-steps li.is-now button::before { background: var(--krt); }
.krt-steps li.is-ok button::before { background: var(--ok); }
.krt-steps li.is-bad button::before { background: var(--bad); }
.krt-steps li.is-done button::before { background: rgba(43, 148, 87, 0.6); }

/* --- responsive --- */
@media (max-width: 900px) {
    .krt__body { grid-template-columns: 1fr; }
    .krt__stage { min-height: 440px; }
    .krt-match { grid-template-columns: 1fr; }
    .krt-options--tn { grid-template-columns: 1fr; }
    .krt-steps { max-height: 220px; }
}