:root {
    --default-font: "Roboto", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, "Noto Sans", sans-serif;
    --heading-font: "Questrial", sans-serif;

    --accent-color: #336791;

    /* Light theme */
    --background-color: #f7fafc;
    --surface-color: #ffffff;
    --surface-color-2: #f1f6fb;
    --default-color: #182b3d;
    --heading-color: #1f4f82;
    --muted-color: rgba(24, 43, 61, .70);
    --border-color: rgba(24, 43, 61, .12);

    --label-color: rgba(24, 43, 61, .88);
    --label-strong: rgba(24, 43, 61, .92);
    --foot-color: rgba(24, 43, 61, .55);

    --shadow: 0 16px 45px rgba(14, 28, 44, .12);
    --radius: 18px;
    --radius2: 14px;
    --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;

    /* Layout tokens */
    --body-glow-1: rgba(51, 103, 145, .16);
    --body-glow-2: rgba(31, 79, 130, .08);
    --body-top: #ffffff;
    --body-bottom: var(--background-color);

    --pill-fg: rgba(255, 255, 255, .85);
    --pill-bg: rgba(255, 255, 255, .05);
    --pill-border: var(--border-color);

    --card-bg: rgba(255, 255, 255, .84);
    --card-bg-solid: #ffffff;

    --head-border: rgba(24, 43, 61, .10);
    --head-bg-1: rgba(51, 103, 145, .10);
    --head-bg-2: rgba(255, 255, 255, .72);

    --input-border: rgba(24, 43, 61, .16);
    --input-bg: rgba(255, 255, 255, .90);
    --input-bg-focus: rgba(255, 255, 255, .98);
    --input-border-focus: rgba(51, 103, 145, .50);

    --btn-border: rgba(24, 43, 61, .14);
    --btn-bg: rgba(24, 43, 61, .04);
    --btn-fg: rgba(24, 43, 61, .90);
    --btn-bg-hover: rgba(24, 43, 61, .07);
    --btn-border-hover: rgba(24, 43, 61, .20);

    --btn-accent-border: rgba(51, 103, 145, .48);
    --btn-accent-bg-1: rgba(51, 103, 145, .18);
    --btn-accent-bg-2: rgba(51, 103, 145, .08);
    --btn-accent-bg-1-hover: rgba(51, 103, 145, .24);
    --btn-accent-bg-2-hover: rgba(51, 103, 145, .10);
    --btn-accent-border-hover: rgba(51, 103, 145, .60);

    --badge-fg: rgba(24, 43, 61, .70);
    --badge-bg: rgba(24, 43, 61, .04);
    --badge-border: rgba(24, 43, 61, .12);

    --sep-bg: rgba(24, 43, 61, .10);

    --tip-border: rgba(24, 43, 61, .14);
    --tip-bg: rgba(24, 43, 61, .05);
    --tip-fg: rgba(24, 43, 61, .72);

    --kpi-bg: rgba(24, 43, 61, .03);
    --kpi-border: rgba(24, 43, 61, .10);

    --month-bg: rgba(24, 43, 61, .03);
    --month-border: rgba(24, 43, 61, .10);

    --hero-border: rgba(51, 103, 145, .28);
    --hero-glow: rgba(51, 103, 145, .16);
    --hero-bg-1: rgba(255, 255, 255, .86);
    --hero-bg-2: rgba(24, 43, 61, .02);

    --impact-bg: rgba(255, 255, 255, .72);
    --impact-border: rgba(24, 43, 61, .10);
    --impact-key: rgba(24, 43, 61, .65);
    --impact-val: rgba(24, 43, 61, .92);

    --switch-border: rgba(24, 43, 61, .14);
    --switch-bg: rgba(24, 43, 61, .06);
    --switch-knob: rgba(24, 43, 61, .78);
    --switch-checked-bg: rgba(51, 103, 145, .22);
    --switch-checked-border: rgba(51, 103, 145, .40);
    --switch-knob-checked: rgba(24, 43, 61, .92);

    /* Alias variables to match toolbox landing / shared components */
    --accent: var(--accent-color);
    --bg: var(--background-color);
    --surface: var(--surface-color);
    --surface-2: var(--surface-color-2);
    --border: var(--border-color);
    --text: var(--default-color);
    --muted: var(--muted-color);
    --shadow-soft: var(--shadow);
}

html[data-theme="dark"] {
    --background-color: #0f1c2c;
    --surface-color: #162437;
    --surface-color-2: #132133;
    --default-color: #eef4fa;
    --heading-color: #ffffff;
    --muted-color: rgba(238, 244, 250, .72);
    --border-color: rgba(238, 244, 250, .12);

    --label-color: rgba(238, 244, 250, .88);
    --label-strong: rgba(238, 244, 250, .92);
    --foot-color: rgba(238, 244, 250, .55);

    --shadow: 0 16px 45px rgba(0, 0, 0, .38);

    --body-glow-1: rgba(51, 103, 145, .22);
    --body-glow-2: rgba(31, 79, 130, .14);
    --body-top: #0f1c2c;
    --body-bottom: #0b1726;

    --pill-fg: rgba(255, 255, 255, .85);
    --pill-bg: rgba(255, 255, 255, .05);
    --pill-border: var(--border-color);

    --card-bg: rgba(22, 36, 55, .88);
    --card-bg-solid: #162437;

    --head-border: rgba(238, 244, 250, .08);
    --head-bg-1: rgba(255, 255, 255, .05);
    --head-bg-2: rgba(255, 255, 255, .02);

    --input-border: rgba(238, 244, 250, .14);
    --input-bg: rgba(9, 17, 29, .58);
    --input-bg-focus: rgba(9, 17, 29, .74);
    --input-border-focus: rgba(95, 146, 188, .62);

    --btn-border: rgba(238, 244, 250, .14);
    --btn-bg: rgba(238, 244, 250, .06);
    --btn-fg: rgba(238, 244, 250, .92);
    --btn-bg-hover: rgba(238, 244, 250, .10);
    --btn-border-hover: rgba(238, 244, 250, .20);

    --badge-fg: rgba(238, 244, 250, .78);
    --badge-bg: rgba(238, 244, 250, .05);
    --badge-border: rgba(238, 244, 250, .12);

    --sep-bg: rgba(238, 244, 250, .10);

    --tip-border: rgba(238, 244, 250, .14);
    --tip-bg: rgba(238, 244, 250, .06);
    --tip-fg: rgba(238, 244, 250, .80);

    --kpi-bg: rgba(238, 244, 250, .05);
    --kpi-border: rgba(238, 244, 250, .10);

    --month-bg: rgba(0, 0, 0, .18);
    --month-border: rgba(238, 244, 250, .10);

    --hero-border: rgba(95, 146, 188, .26);
    --hero-glow: rgba(51, 103, 145, .22);
    --hero-bg-1: rgba(255, 255, 255, .05);
    --hero-bg-2: rgba(255, 255, 255, .02);

    --impact-bg: rgba(238, 244, 250, .04);
    --impact-border: rgba(238, 244, 250, .10);
    --impact-key: var(--muted-color);
    --impact-val: #ffffff;

    --switch-border: rgba(238, 244, 250, .14);
    --switch-bg: rgba(238, 244, 250, .06);
    --switch-knob: rgba(238, 244, 250, .85);
    --switch-checked-bg: rgba(51, 103, 145, .24);
    --switch-checked-border: rgba(95, 146, 188, .42);
    --switch-knob-checked: rgba(238, 244, 250, .95);
}



body {
    font-family: var(--default-font);
    color: var(--default-color);
    background: radial-gradient(900px 520px at 18% 18%, var(--body-glow-1), transparent 60%),
        radial-gradient(900px 520px at 78% 30%, var(--body-glow-2), transparent 60%),
        linear-gradient(180deg, var(--body-top), var(--body-bottom));
}





.grid {
    grid-template-columns: 1.2fr 1.2fr;
}

@media (max-width: 980px) {
    .grid {
        grid-template-columns: 1.2fr;
    }
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
}

.head {
    padding: 16px 18px;
    border-bottom: 1px solid var(--head-border);
    align-items: center;
    gap: 12px;
    background: linear-gradient(180deg, var(--head-bg-1), var(--head-bg-2));
}

.head h2 {
    font-family: var(--heading-font);
    font-size: 14px;
    letter-spacing: .3px;
    color: var(--heading-color);
    font-weight: 600;
    text-transform: uppercase;
}

.body {
    padding: 16px 18px 18px;
}

label {
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 12.5px;
    color: var(--label-color);
}



.label-row .tip {
    margin-left: 0;
}

.row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 12px;
}

@media (max-width: 560px) {
    .row {
        grid-template-columns: 1fr;
    }
}

.hint {
    color: var(--muted-color);
    line-height: 1.4;
    margin-top: 8px;
}

input[type="text"],
input[type="number"],
select {
    padding: 12px 14px;
    transition: border .15s ease, background .15s ease;
}



input[type="number"] {
    -moz-appearance: textfield;
    appearance: textfield;
    padding-right: 14px;
}

input[type="number"]::-webkit-outer-spin-button,
input[type="number"]::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

button {
    border: 1px solid var(--input-border);
    background: var(--btn-bg);
    color: var(--heading-color);
    border-radius: 12px;
    padding: 10px 12px;
    cursor: pointer;
    transition: transform .05s ease, background .15s ease, border .15s ease;
    font-size: 13px;
}

button:hover {
    background: var(--btn-bg-hover);
    border-color: var(--btn-border-hover);
}

button:active {
    transform: translateY(1px);
}


/* Share / restore (match Retainer Tier Evaluator look) */
.section-title-plain {
    font-family: var(--heading-font);
    font-size: 13px;
    color: var(--heading-color);
    opacity: .92;
    margin: 2px 0 10px;
    letter-spacing: .15px;
}

.share-row {
    display: flex;
    gap: 10px;
    align-items: center;
    flex-wrap: wrap;
}

.btn {
    cursor: pointer;
    border-radius: 12px;
    padding: 10px 12px;
    border: 1px solid var(--btn-border);
    background: var(--btn-bg);
    color: var(--btn-fg);
    font-size: 13px;
    transition: transform .08s ease, background .15s ease, border-color .15s ease;
    user-select: none;
}

.btn:hover {
    background: var(--btn-bg-hover);
    border-color: var(--btn-border-hover);
}

.btn:active {
    transform: translateY(1px);
}

.btn[disabled],
.btn.is-disabled {
    opacity: .55;
    cursor: not-allowed;
    pointer-events: none;
}



.btn-accent:hover {
    border-color: var(--input-border-focus);
}

.btn-ghost {
    background: var(--impact-bg);
}

.actions {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
    align-items: center;
}

.file {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
}

.mono {
    font-family: var(--mono);
}

.badge {
    font-family: var(--mono);
    font-size: 11px;
    color: var(--badge-fg);
    padding: 6px 8px;
    border: 1px solid var(--badge-border);
    background: var(--badge-bg);
    white-space: nowrap;
}

.sep {
    background: var(--btn-bg-hover);
    margin: 12px 0;
}

/* Tooltips (compact, non-intrusive) */
.tip {
    margin-left: 8px;
    border: 1px solid var(--input-border);
    background: var(--tip-bg);
    color: var(--tip-fg);
    font-size: 11px;
    line-height: 1;
    user-select: none;
}

/* Optional section header inside the config card */
.section-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    margin: 6px 0 10px;
}

.section-title .left {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 650;
    color: var(--heading-color);
}

/* Small inline lines inside the result hero */
.impact-lines {
    margin-top: 14px;
    padding-top: 12px;
    border-top: 1px solid var(--sep-bg);
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}

@media (max-width: 560px) {
    .impact-lines {
        grid-template-columns: 1fr;
    }
}

.impact-line {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 10px;
    padding: 10px 12px;
    border-radius: 14px;
    border: 1px solid var(--impact-border);
    background: var(--impact-bg);
}

.impact-line .k {
    color: var(--impact-key);
    font-size: 12.5px;
}

.impact-line .v {
    font-family: var(--mono);
    font-weight: 750;
    letter-spacing: .2px;
    font-size: 13.5px;
    color: var(--impact-val);
    white-space: nowrap;
}


/* Result hero: Replacement Premium (big + prominent) */
.result-hero {
    border-radius: var(--radius);
    padding: 20px 18px;
    background: radial-gradient(900px 380px at 25% 15%, var(--hero-glow), transparent 60%),
        linear-gradient(180deg, var(--hero-bg-1), var(--hero-bg-2));
    box-shadow: var(--shadow);
}

.result-hero .label {
    color: var(--label-color);
    font-size: 12px;
    letter-spacing: .14em;
    text-transform: uppercase;
    margin-bottom: 8px;
    font-family: var(--heading-font);
}

.result-hero .value {
    font-family: var(--heading-font);
    font-size: 56px;
    line-height: 1.02;
    font-weight: 700;
    letter-spacing: .2px;
    color: var(--impact-val);
}

.result-hero .sub {
    margin-top: 12px;
    color: var(--impact-key);
    font-size: 13px;
    line-height: 1.45;
}

.kpis {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-top: 12px;
}

@media (max-width: 560px) {
    .kpis {
        grid-template-columns: 1fr;
    }
}

.kpi {
    background: var(--badge-bg);
    border: 1px solid var(--impact-border);
    padding: 12px;
}

.kpi .t {
    color: var(--impact-key);
    font-size: 12px;
    margin-bottom: 6px;
}

.kpi .v {
    font-weight: 700;
}

.kpi .s {
    color: var(--impact-key);
    line-height: 1.35;
}

.months {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-top: 12px;
}

.month {
    border: 1px solid var(--impact-border);
    border-radius: var(--radius2);
    background: var(--month-bg);
    padding: 12px;
}

.month-title {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 10px;
    margin-bottom: 10px;
}

.month-title strong {
    font-family: var(--heading-font);
    font-size: 13px;
    letter-spacing: .2px;
    font-weight: 600;
}

.tiny {
    font-size: 12px;
    color: var(--impact-key);
}

.error {
    color: rgba(255, 92, 122, .95);
    font-size: 13px;
    margin-top: 10px;
    line-height: 1.4;
}

.ok {
    color: rgba(45, 212, 191, .95);
    font-size: 13px;
    margin-top: 10px;
    line-height: 1.4;
}

.foot {
    margin-top: 14px;
    color: var(--foot-color);
    font-size: 12px;
    line-height: 1.45;
}