:root {
    color-scheme: dark;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    min-height: 100vh;
    margin: 0;
    background:
        radial-gradient(circle at 80% 0%, rgba(61, 139, 255, 0.12), transparent 32rem),
        var(--bg-base);
    color: var(--text-primary);
}

button,
select,
input {
    font: inherit;
}

.tool-nav {
    position: sticky;
    top: 0;
    z-index: 20;
    border-bottom: 1px solid var(--border-subtle);
    background: color-mix(in srgb, var(--bg-base) 84%, transparent);
    backdrop-filter: blur(14px);
}

.tool-nav-inner {
    width: min(1120px, calc(100% - 40px));
    min-height: 64px;
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
}

.tool-logo,
.tool-back {
    color: var(--text-primary);
    text-decoration: none;
}

.tool-logo {
    display: inline-flex;
    align-items: center;
    gap: 9px;
    font-weight: var(--fw-semibold);
}

.tool-back {
    color: var(--text-secondary);
    font-size: var(--text-body-sm);
}

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

.tool-shell {
    width: min(1120px, calc(100% - 40px));
    margin: 0 auto;
    padding: 72px 0 96px;
}

.tool-hero {
    max-width: 780px;
    margin-bottom: 44px;
}

.tool-eyebrow,
.panel-kicker,
.result-label,
.field-label {
    font: var(--fw-medium) 11px/1.2 var(--font-mono);
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.tool-eyebrow,
.panel-kicker,
.result-label {
    color: var(--text-accent);
}

.tool-title {
    max-width: 820px;
    margin: 14px 0 18px;
    font-size: clamp(42px, 7vw, 76px);
    line-height: 0.98;
    letter-spacing: -0.045em;
}

.tool-intro {
    max-width: 700px;
    margin: 0;
    color: var(--text-secondary);
    font-size: clamp(17px, 2vw, 20px);
    line-height: 1.6;
}

.tool-layout {
    display: grid;
    grid-template-columns: minmax(0, 1.35fr) minmax(300px, 0.65fr);
    gap: 24px;
    align-items: start;
}

.tool-panel,
.result-panel {
    border: 1px solid var(--border-default);
    border-radius: var(--radius-lg);
    background: color-mix(in srgb, var(--surface-1) 94%, transparent);
    box-shadow: var(--shadow-sm);
}

.tool-panel {
    padding: clamp(22px, 4vw, 36px);
}

.result-panel {
    position: sticky;
    top: 88px;
    padding: 28px;
}

.panel-title {
    margin: 8px 0 8px;
    font-size: var(--text-h2);
    line-height: 1.1;
}

.panel-copy,
.result-copy,
.helper {
    color: var(--text-secondary);
    line-height: 1.55;
}

.panel-copy {
    margin: 0 0 28px;
}

.question-list,
.choice-stack {
    display: grid;
    gap: 14px;
}

.question,
.choice-card {
    padding: 18px;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    background: var(--surface-2);
}

.question-head {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 14px;
}

.question-title {
    margin: 0;
    font-size: 15px;
    line-height: 1.45;
}

.question-value {
    min-width: 30px;
    color: var(--text-accent);
    font: var(--fw-semibold) 18px/1 var(--font-mono);
    text-align: right;
}

input[type="range"] {
    width: 100%;
    accent-color: var(--blue-500);
}

.range-labels {
    display: flex;
    justify-content: space-between;
    margin-top: 7px;
    color: var(--text-tertiary);
    font-size: 11px;
}

.field {
    display: grid;
    gap: 9px;
    margin-bottom: 22px;
}

.field-label {
    color: var(--text-secondary);
}

.field select {
    width: 100%;
    padding: 13px 14px;
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    outline: none;
    background: var(--surface-2);
    color: var(--text-primary);
}

.field select:focus {
    border-color: var(--border-accent);
    box-shadow: 0 0 0 3px var(--accent-subtle);
}

.choice-card {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 12px;
    cursor: pointer;
}

.choice-card:has(input:checked) {
    border-color: var(--border-accent);
    background: var(--accent-subtle);
}

.choice-card input {
    margin-top: 3px;
    accent-color: var(--blue-500);
}

.choice-title {
    display: block;
    margin-bottom: 4px;
    color: var(--text-primary);
    font-weight: var(--fw-semibold);
}

.choice-copy {
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.45;
}

.button-row {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.tool-button {
    padding: 12px 18px;
    border: 1px solid var(--blue-500);
    border-radius: var(--radius-sm);
    background: var(--blue-500);
    color: #fff;
    cursor: pointer;
    font-weight: var(--fw-semibold);
}

.tool-button.secondary {
    border-color: var(--border-default);
    background: transparent;
    color: var(--text-secondary);
}

.tool-button:hover {
    filter: brightness(1.08);
}

.result-empty {
    color: var(--text-secondary);
    line-height: 1.6;
}

.result-score {
    margin: 10px 0 2px;
    color: var(--text-primary);
    font: var(--fw-semibold) 54px/1 var(--font-mono);
    letter-spacing: -0.06em;
}

.result-name {
    margin: 12px 0 8px;
    font-size: 24px;
    line-height: 1.2;
}

.result-list {
    display: grid;
    gap: 10px;
    margin: 20px 0 0;
    padding: 0;
    list-style: none;
}

.result-list li {
    padding: 12px 0 12px 18px;
    border-top: 1px solid var(--border-default);
    color: var(--text-secondary);
    line-height: 1.45;
    position: relative;
}

.result-list li::before {
    content: "→";
    position: absolute;
    left: 0;
    color: var(--text-accent);
}

.meter-list {
    display: grid;
    gap: 14px;
    margin-top: 22px;
}

.meter-head {
    display: flex;
    justify-content: space-between;
    gap: 12px;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 13px;
}

.meter-track {
    height: 7px;
    border-radius: 999px;
    overflow: hidden;
    background: var(--surface-inset);
}

.meter-fill {
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--blue-500), #6fb4ff);
}

.fine-print {
    margin-top: 24px;
    color: var(--text-tertiary);
    font-size: 12px;
    line-height: 1.5;
}

@media (max-width: 820px) {
    .tool-shell {
        padding-top: 48px;
    }

    .tool-layout {
        grid-template-columns: 1fr;
    }

    .result-panel {
        position: static;
    }
}

@media (max-width: 520px) {
    .tool-nav-inner,
    .tool-shell {
        width: min(100% - 28px, 1120px);
    }

    .tool-logo span {
        display: none;
    }

    .tool-title {
        font-size: 44px;
    }
}