/**
 * Sınav Oluşturucu — qmx
 */

.qmx {
    --x-a: var(--accent-primary, #667eea);
    --x-bg: var(--bg-card, var(--content-bg, #fff));
    --x-sf: var(--bg-surface-alt, #f4f6f9);
    --x-tx: var(--text-heading, #0f172a);
    --x-bd: var(--border-light, #e2e8f0);
    --x-in: var(--bg-surface, #fff);
    --x-mu: var(--text-muted, #64748b);
    --x-ok: #ef4444;
    --x-r: 10px;
    --x-scroll-thumb: color-mix(in srgb, var(--x-bd) 72%, var(--x-a));
    --x-scroll-thumb-hover: color-mix(in srgb, var(--x-bd) 52%, var(--x-a));
    width: 100%;
    padding-bottom: 2rem;
    color: var(--x-tx);
    font-size: 0.875rem;
    line-height: 1.5;
    color-scheme: light;
}

[data-theme="dark"] .qmx {
    --x-bg: var(--bg-secondary, #0b1223);
    --x-sf: var(--bg-tertiary, #1e293b);
    --x-tx: var(--text-primary, #e2e8f0);
    --x-bd: var(--border-color, #334155);
    --x-in: var(--bg-tertiary, #1e293b);
    --x-mu: var(--text-tertiary, #94a3b8);
    --x-scroll-thumb: color-mix(in srgb, var(--x-bd) 55%, var(--x-a));
    --x-scroll-thumb-hover: color-mix(in srgb, var(--x-bd) 38%, var(--x-a));
    color-scheme: dark;
}

.qmx__shell {
    border: 1px solid var(--x-bd);
    border-radius: calc(var(--x-r) + 2px);
    background: var(--x-bg);
}

/* Head */
.qmx__head {
    padding: 1rem 1.25rem 0.875rem;
    border-bottom: 1px solid var(--x-bd);
    background: var(--x-sf);
}

.qmx__head-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    margin-bottom: 0.75rem;
}

.qmx__title {
    margin: 0;
    font-size: 1.125rem;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.qmx__step-badge {
    font-size: 0.6875rem;
    font-weight: 600;
    color: var(--x-mu);
    padding: 0.2rem 0.55rem;
    border-radius: 999px;
    border: 1px solid var(--x-bd);
    white-space: nowrap;
}

.qmx__tabs {
    display: flex;
    gap: 0.25rem;
}

.qmx__tab {
    flex: 1;
    padding: 0.45rem 0.5rem;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--x-mu);
    font: inherit;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
}

.qmx__tab:hover { color: var(--x-tx); }

.qmx__tab.is-on {
    color: var(--x-a);
    background: color-mix(in srgb, var(--x-a) 10%, var(--x-bg));
}

.qmx__tab.is-done { color: var(--x-a); }

.qmx__track {
    height: 2px;
    margin-top: 0.65rem;
    background: var(--x-bd);
    border-radius: 99px;
    overflow: hidden;
}

.qmx__track > i {
    display: block;
    height: 100%;
    width: 0;
    background: var(--gradient-primary, linear-gradient(90deg, #667eea, #764ba2));
    transition: width 0.3s ease;
}

/* Stage */
.qmx__stage {
    padding: 1rem 1.25rem;
    animation: qmx-in 0.2s ease;
}

.qmx__stage[hidden] { display: none !important; }

.qmx__stage[data-step="2"] {
    padding-bottom: 1.25rem;
}

@keyframes qmx-in {
    from { opacity: 0; transform: translateY(4px); }
    to   { opacity: 1; transform: none; }
}

.qmx__grid {
    display: grid;
    gap: 0.75rem;
}

.qmx__grid--2 {
        grid-template-columns: 1fr 1fr;
}

.qmx__field--full { grid-column: 1 / -1; }

@media (max-width: 640px) {
    .qmx__grid--2 { grid-template-columns: 1fr; }
    .qmx__field--full { grid-column: auto; }
}

.qmx__field {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.qmx__lbl {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--x-mu);
}

.qmx__lbl em {
    color: var(--x-ok);
    font-style: normal;
}

.qmx__hint {
    font-size: 0.6875rem;
    color: var(--x-mu);
}

.qmx__control {
    width: 100%;
    padding: 0.5rem 0.65rem;
    border: 1px solid var(--x-bd);
    border-radius: 7px;
    background: var(--x-in);
    color: var(--x-tx);
    font: inherit;
    font-size: 0.8125rem;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.qmx__control--area {
    resize: vertical;
    min-height: 3.5rem;
}

.qmx__control:hover { border-color: color-mix(in srgb, var(--x-a) 35%, var(--x-bd)); }

.qmx__control:focus {
    outline: none;
    border-color: var(--x-a);
    box-shadow: 0 0 0 2px color-mix(in srgb, var(--x-a) 18%, transparent);
}

.qmx__control.is-err { border-color: var(--x-ok); }

/* Select — native dropdown dark/light uyumu */
.qmx select.qmx__control {
    appearance: none;
    -webkit-appearance: none;
    padding-right: 2rem;
    cursor: pointer;
    accent-color: var(--x-a);
    background-color: var(--x-in);
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 0.5rem center;
    background-size: 0.9rem;
}

[data-theme="dark"] .qmx select.qmx__control {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
}

.qmx select.qmx__control option,
.qmx select.qmx__control optgroup {
    background-color: var(--x-in);
    color: var(--x-tx);
}

/* Textarea & kaydırma çubukları */
.qmx textarea.qmx__control,
.qmx__q-body,
.qmx__opts {
    scrollbar-width: thin;
    scrollbar-color: var(--x-scroll-thumb) transparent;
}

.qmx textarea.qmx__control::-webkit-scrollbar,
.qmx__q-body::-webkit-scrollbar,
.qmx__opts::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}

.qmx textarea.qmx__control::-webkit-scrollbar-track,
.qmx__q-body::-webkit-scrollbar-track,
.qmx__opts::-webkit-scrollbar-track {
    background: transparent;
}

.qmx textarea.qmx__control::-webkit-scrollbar-thumb,
.qmx__q-body::-webkit-scrollbar-thumb,
.qmx__opts::-webkit-scrollbar-thumb {
    background: var(--x-scroll-thumb);
    border-radius: 99px;
}

.qmx textarea.qmx__control::-webkit-scrollbar-thumb:hover,
.qmx__q-body::-webkit-scrollbar-thumb:hover,
.qmx__opts::-webkit-scrollbar-thumb:hover {
    background: var(--x-scroll-thumb-hover);
}

/* Chips */
.qmx__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
}

.qmx__chip {
    cursor: pointer;
    margin: 0;
}

.qmx__chip input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.qmx__chip span {
    display: inline-block;
    padding: 0.3rem 0.65rem;
    border: 1px solid var(--x-bd);
    border-radius: 999px;
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--x-mu);
    transition: all 0.15s;
}

.qmx__chip:hover span {
    border-color: color-mix(in srgb, var(--x-a) 40%, var(--x-bd));
    color: var(--x-tx);
}

.qmx__chip input:checked + span {
    color: #fff;
    border-color: transparent;
    background: var(--gradient-primary, linear-gradient(135deg, #667eea, #764ba2));
}

/* Sorular */
.qmx__stage-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    margin-bottom: 0.65rem;
}

.qmx__count {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--x-mu);
}

.qmx__q-list {
    display: flex;
    flex-direction: column;
    gap: 0.45rem;
}

.qmx__q-list:not(:empty) + .qmx__q-empty { display: none; }

.qmx__q-empty {
    padding: 1.75rem 1rem;
    text-align: center;
    color: var(--x-mu);
    font-size: 0.8125rem;
    border: 1px dashed var(--x-bd);
    border-radius: var(--x-r);
}

.qmx__q {
    border: 1px solid var(--x-bd);
    border-radius: calc(var(--x-r) + 2px);
    background: var(--x-in);
    overflow: hidden;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.qmx__q.is-open {
    border-color: color-mix(in srgb, var(--x-a) 38%, var(--x-bd));
    box-shadow: 0 6px 20px color-mix(in srgb, var(--x-a) 7%, transparent);
}

.qmx__q.is-busy { opacity: 0.5; pointer-events: none; }

.qmx__q-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.65rem;
    cursor: pointer;
    user-select: none;
}

.qmx__q.is-open .qmx__q-toggle {
    background: linear-gradient(
        180deg,
        color-mix(in srgb, var(--x-a) 7%, var(--x-in)) 0%,
        color-mix(in srgb, var(--x-a) 3%, var(--x-in)) 100%
    );
    border-bottom: 1px solid color-mix(in srgb, var(--x-a) 12%, var(--x-bd));
}

.qmx__q-toggle:focus-visible {
    outline: 2px solid var(--x-a);
    outline-offset: -2px;
}

.qmx__q-n {
    flex-shrink: 0;
    width: 1.45rem;
    height: 1.45rem;
    display: grid;
    place-items: center;
    border-radius: 6px;
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--x-mu);
    background: color-mix(in srgb, var(--x-mu) 10%, transparent);
}

.qmx__q.is-open .qmx__q-n {
    color: #fff;
    background: var(--gradient-primary, linear-gradient(135deg, #667eea, #764ba2));
    box-shadow: 0 2px 8px color-mix(in srgb, var(--x-a) 30%, transparent);
}

.qmx__q-title {
    flex: 1;
    min-width: 0;
    font-size: 0.8125rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    color: var(--x-mu);
}

.qmx__q.is-open .qmx__q-title {
    font-weight: 600;
    color: var(--x-tx);
}

.qmx__q-del {
    flex-shrink: 0;
    width: 1.45rem;
    height: 1.45rem;
    border: none;
    border-radius: 6px;
    background: transparent;
    color: var(--x-mu);
    font-size: 1.05rem;
    line-height: 1;
    cursor: pointer;
    transition: color 0.15s, background 0.15s;
}

.qmx__q-del:hover {
    color: var(--x-ok);
    background: color-mix(in srgb, var(--x-ok) 10%, transparent);
}

/* Açık soru içeriği */
.qmx__q-body {
    padding: 0.65rem 0.7rem 0.7rem;
    display: flex;
    flex-direction: column;
    gap: 0.55rem;
    background: color-mix(in srgb, var(--x-sf) 42%, var(--x-in));
}

.qmx__q-body[hidden] { display: none; }

.qmx__q-block {
    display: flex;
    flex-direction: column;
    gap: 0.35rem;
}

.qmx__q-block--opts {
    padding-top: 0.45rem;
    border-top: 1px solid color-mix(in srgb, var(--x-bd) 88%, transparent);
}

.qmx__q-block-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0 0.05rem;
}

.qmx__q-block-label {
    font-size: 0.6875rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--x-tx);
}

.qmx__q-block-hint {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--x-mu);
    text-align: right;
    line-height: 1.25;
}

.qmx__q-main {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 4rem;
    gap: 0.45rem;
    align-items: stretch;
}

.qmx__q-text {
    min-height: 4.25rem;
    max-height: 9rem;
    padding: 0.45rem 0.55rem !important;
    font-size: 0.8125rem !important;
    line-height: 1.45;
    resize: vertical;
    border-radius: 8px !important;
    background: var(--x-in) !important;
}

.qmx__q-media {
    flex-shrink: 0;
    align-self: stretch;
}

.qmx__q-thumb {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.15rem;
    width: 4rem;
    height: 100%;
    min-height: 4.25rem;
    margin: 0;
    border: 1px dashed color-mix(in srgb, var(--x-mu) 30%, var(--x-bd));
    border-radius: 8px;
    background: var(--x-in);
    color: var(--x-mu);
    cursor: pointer;
    overflow: hidden;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.qmx__q-thumb:hover {
    border-color: var(--x-a);
    color: var(--x-a);
    background: color-mix(in srgb, var(--x-a) 5%, var(--x-in));
}

.qmx__q-thumb.is-filled {
    display: block;
    padding: 0;
    border-style: solid;
    border-color: var(--x-bd);
}

.qmx__q-thumb.is-filled img {
    display: block;
    width: 100%;
    height: 100%;
    min-height: 4.25rem;
    object-fit: cover;
}

.qmx__q-thumb-ico {
    width: 1rem;
    height: 1rem;
    opacity: 0.72;
}

.qmx__q-thumb-txt {
    font-size: 0.5625rem;
    font-weight: 600;
    line-height: 1;
    letter-spacing: 0.02em;
}

.qmx__q-rm-img {
    position: absolute;
    top: 3px;
    right: 3px;
    z-index: 1;
    width: 1.1rem;
    height: 1.1rem;
    border: none;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.62);
    color: #fff;
    font-size: 0.75rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.qmx__q-thumb.is-filled:hover .qmx__q-rm-img {
    opacity: 1;
}

.qmx__q-foot {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding-top: 0.15rem;
}

.qmx__q-foot-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 0.35rem;
}

.qmx__expl {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
    padding: 0.45rem 0.5rem;
    border: 1px solid var(--x-bd);
    border-radius: 8px;
    background: var(--x-in);
}

.qmx__expl[hidden] { display: none !important; }

.qmx__expl-input {
    min-height: 2.75rem !important;
    padding: 0.4rem 0.5rem !important;
    font-size: 0.75rem !important;
    border-radius: 7px !important;
}

.qmx__btn--ghost {
    padding: 0.28rem 0.55rem;
    font-size: 0.6875rem;
    font-weight: 600;
    border-style: dashed;
    border-color: color-mix(in srgb, var(--x-mu) 28%, var(--x-bd));
    background: var(--x-in);
    color: var(--x-mu);
}

.qmx__btn--ghost:hover {
    border-color: var(--x-a);
    color: var(--x-a);
    background: color-mix(in srgb, var(--x-a) 5%, var(--x-in));
}

.qmx__opts-wrap {
    display: flex;
    flex-direction: column;
    gap: 0.28rem;
}

.qmx__opts-head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0;
    min-height: 1.25rem;
}

.qmx__opts-head > span:first-child {
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--x-tx);
    letter-spacing: 0.02em;
    text-transform: uppercase;
}

.qmx__opts-hint {
    font-size: 0.625rem;
    font-weight: 500;
    color: var(--x-mu);
    text-align: right;
    line-height: 1.2;
}

.qmx__opts {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.qmx__opt {
    display: grid;
    grid-template-columns: 1.5rem minmax(0, 1fr) 3rem 1.2rem;
    align-items: center;
    gap: 0.35rem;
    padding: 0.28rem 0.35rem;
    border: 1px solid var(--x-bd);
    border-radius: 8px;
    background: var(--x-bg);
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.qmx__opt.is-pick {
    border-color: color-mix(in srgb, var(--x-a) 55%, var(--x-bd));
    background: color-mix(in srgb, var(--x-a) 5%, var(--x-bg));
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--x-a) 10%, transparent);
}

.qmx__opt.has-opt-img {
    grid-template-columns: 1.5rem minmax(0, 1fr) 3rem 1.2rem;
}

.qmx__opt-key {
    flex-shrink: 0;
    cursor: pointer;
    align-self: center;
}

.qmx__opt-key input {
    position: absolute;
    opacity: 0;
    pointer-events: none;
}

.qmx__opt-key b {
    display: grid;
    place-items: center;
    width: 1.5rem;
    height: 1.5rem;
    border-radius: 6px;
    font-size: 0.6875rem;
    font-weight: 700;
    color: var(--x-mu);
    background: color-mix(in srgb, var(--x-mu) 10%, transparent);
}

.qmx__opt.is-pick .qmx__opt-key b,
.qmx__opt-key input:checked + b {
    color: #fff;
    background: var(--gradient-primary, linear-gradient(135deg, #667eea, #764ba2));
}

.qmx__opt-input {
    width: 100%;
    min-height: 2rem;
    padding: 0.32rem 0.5rem !important;
    border: 1px solid var(--x-bd) !important;
    border-radius: 6px !important;
    background: var(--x-in) !important;
    box-shadow: none !important;
    font-size: 0.75rem;
    line-height: 1.35;
}

.qmx__opt-input:focus {
    border-color: var(--x-a) !important;
    box-shadow: 0 0 0 1px color-mix(in srgb, var(--x-a) 18%, transparent) !important;
}

.qmx__opt-media {
    flex-shrink: 0;
    justify-self: end;
}

.qmx__opt-thumb {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0;
    width: 3rem;
    height: 3rem;
    margin: 0;
    border: 1px dashed color-mix(in srgb, var(--x-mu) 32%, var(--x-bd));
    border-radius: 6px;
    background: color-mix(in srgb, var(--x-mu) 4%, var(--x-in));
    color: var(--x-mu);
    cursor: pointer;
    overflow: hidden;
    transition: border-color 0.15s ease, color 0.15s ease, background 0.15s ease;
}

.qmx__opt-thumb:hover {
    border-color: var(--x-a);
    color: var(--x-a);
    background: color-mix(in srgb, var(--x-a) 6%, var(--x-in));
}

.qmx__opt-thumb.is-filled {
    display: block;
    padding: 0;
    border-style: solid;
    border-color: var(--x-bd);
    background: var(--x-in);
}

.qmx__opt-thumb.is-filled img {
    display: block;
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qmx__opt-thumb-ico {
    width: 0.95rem;
    height: 0.95rem;
    opacity: 0.7;
}

.qmx__opt-thumb-txt {
    display: none;
}

.qmx__opt-rm-img {
    position: absolute;
    top: 2px;
    right: 2px;
    z-index: 1;
    width: 1rem;
    height: 1rem;
    border: none;
    border-radius: 4px;
    background: rgba(0, 0, 0, 0.62);
    color: #fff;
    font-size: 0.7rem;
    line-height: 1;
    cursor: pointer;
    opacity: 0;
    transition: opacity 0.15s ease;
}

.qmx__opt-thumb.is-filled:hover .qmx__opt-rm-img {
    opacity: 1;
}

.qmx__opt-rm,
.qmx__opt-rm-spacer {
    flex-shrink: 0;
    justify-self: center;
}

.qmx__opt-rm {
    width: 1.2rem;
    height: 1.2rem;
    border: none;
    border-radius: 5px;
    background: transparent;
    color: var(--x-mu);
    font-size: 0.95rem;
    line-height: 1;
    cursor: pointer;
}

.qmx__opt-rm-spacer {
    display: block;
    width: 1.2rem;
    height: 1.2rem;
}

.qmx__opt-rm:hover {
    color: var(--x-ok);
    background: color-mix(in srgb, var(--x-ok) 10%, transparent);
}

.qmx__opt-add {
    min-height: 0 !important;
}

@media (max-width: 640px) {
    .qmx__q-body {
        padding: 0.55rem 0.6rem 0.6rem;
        gap: 0.5rem;
    }

    .qmx__q-main {
        grid-template-columns: minmax(0, 1fr) 3.5rem;
        gap: 0.35rem;
    }

    .qmx__q-thumb {
        width: 3.5rem;
        min-height: 3.75rem;
    }

    .qmx__q-thumb.is-filled img {
        min-height: 3.75rem;
    }

    .qmx__q-text {
        min-height: 3.75rem;
    }

    .qmx__q-block-hint {
        display: none;
    }

    .qmx__q-rm-img {
        opacity: 1;
    }

    .qmx__opts-hint {
        display: none;
    }

    .qmx__opt,
    .qmx__opt.has-opt-img {
        grid-template-columns: 1.4rem minmax(0, 1fr) 2.75rem 1.1rem;
        gap: 0.3rem;
        padding: 0.25rem 0.3rem;
    }

    .qmx__opt-thumb {
        width: 2.75rem;
        height: 2.75rem;
    }

    .qmx__opt-rm-img {
        opacity: 1;
    }
}

/* Review */
.qmx__review {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--x-bd);
}

.qmx__review h3 {
    margin: 0 0 0.5rem;
    font-size: 0.6875rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--x-mu);
}

.qmx__review dl {
    margin: 0;
    display: grid;
    gap: 0;
}

.qmx__review dl > div {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    padding: 0.45rem 0;
    border-bottom: 1px solid var(--x-bd);
    font-size: 0.8125rem;
}

.qmx__review dl > div:last-child { border-bottom: none; }

.qmx__review dt {
    color: var(--x-mu);
    font-weight: 500;
}

.qmx__review dd {
    margin: 0;
    font-weight: 600;
    text-align: right;
    word-break: break-word;
}

/* Nav */
.qmx__nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.5rem;
    padding: 0.65rem 1.25rem;
    border-top: 1px solid var(--x-bd);
    background: color-mix(in srgb, var(--x-sf) 92%, transparent);
    backdrop-filter: blur(8px);
    position: sticky;
    bottom: 0;
    z-index: 30;
    box-shadow: 0 -4px 18px color-mix(in srgb, var(--x-tx) 6%, transparent);
}

.qmx__nav-start {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
}

.qmx__nav-center {
    position: absolute;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.qmx__nav-center[hidden] {
    display: none;
}

.qmx__nav-center .qmx__nav-add-q {
    pointer-events: auto;
}

.qmx__nav-add-q {
    min-width: 5.75rem;
    padding-left: 0.9rem;
    padding-right: 0.9rem;
    white-space: nowrap;
}

.qmx__nav-end {
    flex: 0 0 auto;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    gap: 0.4rem;
    margin-left: auto;
}

.qmx__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.5rem 0.9rem;
    border: 1px solid var(--x-bd);
    border-radius: 7px;
    background: var(--x-bg);
    color: var(--x-tx);
    font: inherit;
    font-size: 0.8125rem;
    font-weight: 600;
    cursor: pointer;
    transition: border-color 0.15s, filter 0.15s;
}

.qmx__btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

.qmx__btn--accent {
    color: #fff;
    border-color: transparent;
    background: var(--gradient-primary, linear-gradient(135deg, #667eea, #764ba2));
}

.qmx__btn--accent:not(:disabled):hover { filter: brightness(1.06); }

.qmx__btn[hidden] { display: none; }

/* Toast */
.qmx__toast {
    position: fixed;
    bottom: 1.25rem;
    left: 50%;
    transform: translateX(-50%) translateY(0.5rem);
    z-index: 99999;
    padding: 0.55rem 1rem;
    border-radius: 999px;
    font-size: 0.8125rem;
    font-weight: 600;
    color: #fff;
    background: var(--x-tx);
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s, transform 0.2s;
}

.qmx__toast.is-show {
    opacity: 1;
    transform: translateX(-50%);
}

.qmx__toast.is-err { background: #dc2626; }
.qmx__toast.is-ok  { background: var(--gradient-primary, linear-gradient(135deg, #667eea, #764ba2)); }

.qmx.is-busy { opacity: 0.6; pointer-events: none; }

/* Gate */
.qmx--gate .qmx__shell {
    max-width: 24rem;
    margin: 0 auto;
    padding: 2rem 1.25rem;
    text-align: center;
}

.qmx--gate .qmx__title { margin-bottom: 0.35rem; }
.qmx--gate .qmx__subtitle { margin: 0 0 1rem; color: var(--x-mu); font-size: 0.875rem; }

@media (max-width: 600px) {
    .qmx__head,
    .qmx__stage,
    .qmx__nav { padding-left: 1rem; padding-right: 1rem; }

    .qmx__nav {
        flex-wrap: wrap;
        gap: 0.4rem;
        padding-top: 0.55rem;
        padding-bottom: 0.55rem;
    }

    .qmx__nav-center:not([hidden]) {
        position: static;
        transform: none;
        order: -1;
        width: 100%;
        pointer-events: auto;
    }

    .qmx__nav-center:not([hidden]) .qmx__nav-add-q {
        width: 100%;
        min-width: 0;
    }

    .qmx__nav-start,
    .qmx__nav-end {
        flex: 1 1 0;
        min-width: 0;
        margin-left: 0;
    }

    .qmx__nav-start {
        justify-content: flex-start;
    }

    .qmx__nav-end {
        justify-content: flex-end;
    }

    .qmx__nav-start .qmx__btn {
        width: 100%;
        max-width: 100%;
    }

    .qmx__nav-end .qmx__btn {
        flex: 1 1 auto;
        min-width: 0;
    }

    .qmx__nav-end .qmx__btn:only-child {
        width: 100%;
        flex: 1 1 100%;
    }
}