/* Tool */

.tool {
    padding-top: calc(var(--header-height) + 40px);
}

.tool-inner {
    max-width: 940px;
}

.tool-back {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    color: var(--faint-color);
    font-size: 14px;
    font-weight: 600;
    transition: .2s;
}

.tool-back:hover {
    color: var(--text-color);
}

.tool-back .material-symbols-rounded {
    font-size: 18px;
}

.tool-head {
    display: flex;
    align-items: center;
    gap: 18px;
    margin: 26px 0 34px;
}

.tool-head__icon {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 62px;
    height: 62px;
    border: 1px solid var(--border-color);
    border-radius: 18px;
    background: linear-gradient(140deg, transparent, var(--brand-soft));
    font-size: 30px;
}

.tool-head__title {
    font-size: 34px;
    font-weight: 800;
    letter-spacing: -1px;
}

.tool-head__desc {
    margin-top: 6px;
    color: var(--muted-color);
}

.tool-about {
    display: flex;
    align-items: flex-start;
    gap: 12px;
    margin-top: 30px;
    padding: 18px 20px;
    border: 1px solid var(--border-color);
    border-radius: 14px;
    color: var(--muted-color);
    font-size: 14px;
    line-height: 1.6;
}

.tool-about .material-symbols-rounded {
    flex-shrink: 0;
    color: var(--faint-color);
    font-size: 20px;
}

.tool-more {
    padding: 70px 0 100px;
}

.tool-more__title {
    margin-bottom: 20px;
    color: var(--faint-color);
    font-family: var(--label-font);
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

@media (max-width: 991px) {
    .tool {
        padding-top: calc(var(--header-height) + 24px);
    }

    .tool-head {
        gap: 14px;
        margin: 20px 0 26px;
    }

    .tool-head__icon {
        width: 50px;
        height: 50px;
        border-radius: 15px;
        font-size: 24px;
    }

    .tool-head__title {
        font-size: 24px;
    }

    .tool-more {
        padding: 40px 0 60px;
    }
}

/* Panel */

.tool-panel {
    display: flex;
    flex-direction: column;
    gap: 12px;
    margin-bottom: 16px;
    padding: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--surface-color);
}

.tool-panel--hero {
    background:
        radial-gradient(90% 140% at 100% 0%, var(--brand-soft), transparent 60%),
        var(--surface-color);
}

.tool-panel--center {
    align-items: center;
    justify-content: center;
}

.tool-panel__head {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    min-height: 38px;
}

.tool-panel__title {
    color: var(--faint-color);
    font-family: var(--label-font);
    font-size: 12px;
    letter-spacing: 1px;
    text-transform: uppercase;
}

.tool-columns {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

.tool-columns--aside {
    grid-template-columns: 1.25fr 1fr;
    align-items: start;
}

.tool-actions {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 12px 20px;
    margin-bottom: 16px;
}

@media (max-width: 991px) {
    .tool-columns,
    .tool-columns--aside {
        grid-template-columns: 1fr;
    }

    .tool-actions .btn {
        width: auto;
    }
}

/* Field */

.field {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-color);
    color: var(--text-color);
    font-family: var(--main-font);
    font-size: 15px;
    outline: none;
    transition: .2s;
}

.field::placeholder {
    color: var(--faint-color);
}

.field:focus {
    border-color: var(--brand-color);
}

.field:read-only {
    color: var(--muted-color);
}

.field--area {
    min-height: 90px;
    line-height: 1.6;
    resize: vertical;
}

.field--mono {
    font-family: var(--label-font);
    font-size: 13px;
}

.field--number {
    width: 110px;
}

.field--select {
    width: auto;
    padding: 9px 12px;
    font-size: 14px;
    cursor: pointer;
}

.field--display {
    font-family: var(--label-font);
    font-size: 22px;
    letter-spacing: 1px;
    text-align: center;
}

.field--color {
    width: 54px;
    height: 46px;
    padding: 4px;
    cursor: pointer;
}

.field--range {
    width: 220px;
    padding: 0;
    border: none;
    background: transparent;
    accent-color: var(--brand-color);
    cursor: pointer;
}

.field-inline {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    color: var(--faint-color);
    font-size: 13px;
    font-weight: 600;
}

.field-inline--grow {
    flex-grow: 1;
}

.field-inline b {
    min-width: 24px;
    color: var(--text-color);
    font-family: var(--label-font);
}

.check {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: var(--muted-color);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    user-select: none;
}

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

.check-box {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    border: 1px solid var(--border-hover);
    border-radius: 5px;
    background: var(--bg-color);
    transition: .2s;
}

.check-box::after {
    content: "";
    width: 4px;
    height: 8px;
    margin-top: -2px;
    border: solid #fff;
    border-width: 0 2px 2px 0;
    transform: rotate(45deg);
    opacity: 0;
    transition: opacity .15s;
}

.check-input:checked + .check-box {
    background: var(--brand-color);
    border-color: var(--brand-color);
}

.check-input:checked + .check-box::after {
    opacity: 1;
}

.check-input:focus-visible + .check-box {
    outline: 2px solid var(--brand-color);
    outline-offset: 2px;
}

.chip-group {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 5px;
    border: 1px solid var(--border-color);
    border-radius: 100px;
    background: var(--surface-color);
}

.chip {
    padding: 8px 18px;
    background: transparent;
    border: none;
    border-radius: 100px;
    color: var(--muted-color);
    font-family: var(--main-font);
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: .2s;
}

.chip:hover {
    color: var(--text-color);
}

.chip.is-active {
    background: var(--text-color);
    color: var(--bg-color);
}

@media (max-width: 768px) {
    .field--range {
        width: 100%;
    }

    .field-inline--grow {
        width: 100%;
    }

    .chip-group {
        width: 100%;
        justify-content: center;
    }
}

/* Result */

.result-list {
    display: flex;
    flex-direction: column;
}

.result-row {
    display: flex;
    align-items: center;
    gap: 14px;
    padding: 12px 0;
    border-bottom: 1px solid var(--border-color);
}

.result-row:last-child {
    border-bottom: none;
}

.result-row__label {
    flex-shrink: 0;
    width: 110px;
    color: var(--faint-color);
    font-family: var(--label-font);
    font-size: 12px;
    text-transform: uppercase;
}

.result-row__value {
    flex-grow: 1;
    min-width: 0;
    color: var(--text-color);
    font-family: var(--label-font);
    font-size: 13px;
    word-break: break-all;
}

.result-row__value:empty::after,
.result-row__value.is-empty {
    color: var(--faint-color);
}

.output {
    margin: 0;
    padding: 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-color);
    color: var(--muted-color);
    font-family: var(--label-font);
    font-size: 13px;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
    overflow-x: auto;
}

.display {
    font-family: var(--label-font);
    font-size: 40px;
    font-weight: 700;
    line-height: 1.2;
    text-align: center;
    word-break: break-all;
}

.display-sub {
    color: var(--faint-color);
    font-size: 13px;
    text-align: center;
}

.note {
    display: none;
    margin-bottom: 16px;
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.4;
}

.note.is-ok,
.note.is-error {
    display: block;
}

.note.is-ok {
    background: color-mix(in srgb, var(--ok-color) 16%, transparent);
    color: var(--ok-color);
}

.note.is-error {
    background: color-mix(in srgb, var(--err-color) 16%, transparent);
    color: var(--err-color);
}

.history {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    min-height: 34px;
}

.history-item {
    padding: 6px 14px;
    border: 1px solid var(--border-color);
    border-radius: 100px;
    font-family: var(--label-font);
    font-size: 13px;
    color: var(--muted-color);
}

@media (max-width: 768px) {
    .result-row {
        flex-wrap: wrap;
        gap: 6px 14px;
    }

    .result-row__label {
        width: auto;
    }

    .result-row__value {
        flex-basis: 100%;
        order: 3;
    }

    .display {
        font-size: 28px;
    }
}

/* Meter */

.meter {
    display: flex;
    align-items: center;
    gap: 14px;
}

.meter-bar {
    flex-grow: 1;
    height: 6px;
    border-radius: 100px;
    background: var(--border-color);
    overflow: hidden;
}

.meter-bar__fill {
    display: block;
    width: 0;
    height: 100%;
    border-radius: 100px;
    background: var(--err-color);
    transition: width .25s, background .25s;
}

.meter-bar__fill.is-medium {
    background: var(--warn-color);
}

.meter-bar__fill.is-strong {
    background: var(--ok-color);
}

.meter-label {
    flex-shrink: 0;
    color: var(--faint-color);
    font-family: var(--label-font);
    font-size: 12px;
}

/* Qr */

.qr-preview {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 22px;
    border-radius: 14px;
    background: #ffffff;
}

.qr-preview img,
.qr-preview canvas {
    display: block;
    max-width: 100%;
    height: auto;
}

.qr-preview table {
    border-collapse: collapse;
}

/* Color */

.color-preview {
    display: flex;
    width: 100%;
    border-radius: 14px;
    overflow: hidden;
}

.color-preview__on-dark,
.color-preview__on-light {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 50%;
    padding: 30px 0;
    font-size: 26px;
    font-weight: 700;
    color: var(--preview-color, #3b6fff);
}

.color-preview__on-dark {
    background: #000000;
}

.color-preview__on-light {
    background: #ffffff;
}

/* Base converter */

.base-list {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.base-row {
    display: flex;
    align-items: center;
    gap: 14px;
}

.base-row__label {
    flex-shrink: 0;
    width: 130px;
    color: var(--muted-color);
    font-size: 14px;
    font-weight: 600;
}

.base-row__hint {
    display: block;
    color: var(--faint-color);
    font-family: var(--label-font);
    font-size: 11px;
    font-weight: 400;
}

@media (max-width: 768px) {
    .base-row {
        flex-wrap: wrap;
        gap: 8px;
    }

    .base-row__label {
        width: 100%;
    }

    .base-row__input {
        flex: 1 1 0;
        min-width: 0;
    }
}

/* Regex */

.regex-input {
    display: flex;
    align-items: center;
    gap: 8px;
}

.regex-input__slash {
    flex-shrink: 0;
    color: var(--faint-color);
    font-family: var(--label-font);
    font-size: 20px;
}

.regex-input__field {
    flex-grow: 1;
    min-width: 0;
}

.regex-input__flags {
    width: 90px;
    flex-shrink: 0;
}

.regex-preview {
    min-height: 44px;
    padding: 14px 16px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-color);
    color: var(--muted-color);
    font-family: var(--label-font);
    font-size: 13px;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
}

.regex-preview mark {
    padding: 1px 2px;
    border-radius: 3px;
    background: var(--brand-soft);
    color: var(--brand-text);
}

.regex-group {
    display: flex;
    gap: 10px;
    margin-top: 6px;
    color: var(--muted-color);
    font-size: 12px;
}

.regex-group__index {
    flex-shrink: 0;
    color: var(--tok-num);
}

/* Diff */

.diff {
    max-height: 520px;
    border: 1px solid var(--border-color);
    border-radius: 12px;
    background: var(--bg-color);
    font-family: var(--label-font);
    font-size: 13px;
    overflow: auto;
}

.diff:empty {
    display: none;
}

.diff-line {
    display: flex;
    align-items: baseline;
    gap: 10px;
    padding: 2px 14px;
    line-height: 1.7;
    white-space: pre-wrap;
    word-break: break-word;
}

.diff-line--add {
    background: color-mix(in srgb, var(--ok-color) 12%, transparent);
}

.diff-line--del {
    background: color-mix(in srgb, var(--err-color) 12%, transparent);
}

.diff-line__num {
    flex-shrink: 0;
    width: 34px;
    color: var(--tok-com);
    text-align: right;
    user-select: none;
}

.diff-line__sign {
    flex-shrink: 0;
    width: 10px;
    color: var(--faint-color);
    user-select: none;
}

.diff-line--add .diff-line__sign {
    color: var(--ok-color);
}

.diff-line--del .diff-line__sign {
    color: var(--err-color);
}

.diff-line__text {
    flex-grow: 1;
    min-width: 0;
    color: var(--muted-color);
}

.diff-line--add .diff-line__text,
.diff-line--del .diff-line__text {
    color: var(--text-color);
}

.diff-legend {
    display: flex;
    gap: 14px;
    font-family: var(--label-font);
    font-size: 11px;
}

.diff-legend__item--add {
    color: var(--ok-color);
}

.diff-legend__item--del {
    color: var(--err-color);
}

@media (max-width: 768px) {
    .diff-line {
        padding: 2px 10px;
    }

    .diff-line__num {
        width: 24px;
    }
}

/* Stat */

.stat-row {
    display: grid;
    grid-template-columns: repeat(6, 1fr);
    gap: 0;
    margin-bottom: 16px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    background: var(--surface-color);
    overflow: hidden;
}

.stat {
    padding: 20px 18px;
    border-left: 1px solid var(--border-color);
}

.stat:first-child {
    border-left: none;
}

.stat-value {
    font-family: var(--label-font);
    font-size: 24px;
    font-weight: 700;
    line-height: 1;
}

.stat-label {
    margin-top: 6px;
    color: var(--faint-color);
    font-size: 12px;
}

@media (max-width: 991px) {
    .stat-row {
        grid-template-columns: repeat(3, 1fr);
    }

    .stat:nth-child(3n + 1) {
        border-left: none;
    }

    .stat:nth-child(n + 4) {
        border-top: 1px solid var(--border-color);
    }

    .stat-value {
        font-size: 19px;
    }
}

@media (max-width: 600px) {
    .stat-row {
        grid-template-columns: repeat(2, 1fr);
    }

    .stat {
        padding: 14px 12px;
    }

    .stat:nth-child(3n + 1) {
        border-left: 1px solid var(--border-color);
    }

    .stat:nth-child(odd) {
        border-left: none;
    }

    .stat:nth-child(n + 3) {
        border-top: 1px solid var(--border-color);
    }
}

/* Gradient */

.gradient-stops {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.gradient-stop {
    display: flex;
    align-items: center;
    gap: 10px;
}

.gradient-stop .field--range {
    flex-grow: 1;
    width: auto;
}

.gradient-stop b {
    min-width: 42px;
    color: var(--text-color);
    font-family: var(--label-font);
    font-size: 13px;
}

/* Bezier */

.bezier-svg {
    width: 240px;
    max-width: 100%;
    height: 240px;
    touch-action: none;
}

.bezier-guide {
    stroke: var(--border-color);
    stroke-dasharray: 4 4;
}

.bezier-control {
    stroke: var(--brand-text);
    stroke-width: 1.5;
}

.bezier-curve {
    fill: none;
    stroke: var(--brand-color);
    stroke-width: 2.5;
}

.bezier-handle {
    fill: var(--brand-color);
    cursor: grab;
}

.bezier-handle:active {
    cursor: grabbing;
}

.bezier-track {
    position: relative;
    height: 40px;
    border-radius: 100px;
    background: var(--bg-color);
    border: 1px solid var(--border-color);
}

.bezier-dot {
    position: absolute;
    top: 50%;
    left: 6px;
    width: 24px;
    height: 24px;
    margin-top: -12px;
    border-radius: 100%;
    background: var(--brand-color);
}