:root {
    --metrics-bg: #071520;
    --metrics-panel: #0d2130;
    --metrics-panel-deep: #071824;
    --metrics-line: rgba(154, 190, 201, 0.2);
    --metrics-text: #f4fbfc;
    --metrics-muted: #a9bdc5;
    --metrics-teal: #20d5bd;
    --metrics-cyan: #54dce0;
    --metrics-purple: #c4b5fd;
    --metrics-orange: #fdba74;
}

.metrics-page {
    background:
        radial-gradient(circle at 10% 6%, rgba(17, 148, 134, 0.18), transparent 30rem),
        radial-gradient(circle at 90% 4%, rgba(124, 91, 194, 0.11), transparent 32rem),
        var(--metrics-bg);
    color: var(--metrics-text);
}

.metrics-page .site-header {
    border-bottom: 1px solid rgba(89, 172, 187, 0.16);
    background: rgba(7, 21, 32, 0.9);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
}

.metrics-page .tools-nav-current {
    color: var(--metrics-teal);
}

.metrics-main {
    overflow: hidden;
    padding-top: 7rem;
}

.metrics-shell {
    width: min(1180px, calc(100% - 2rem));
    margin-inline: auto;
}

.metrics-hero {
    padding: clamp(4rem, 9vw, 7rem) 0 clamp(3.5rem, 7vw, 5.5rem);
}

.metrics-kicker {
    display: flex;
    align-items: center;
    gap: 0.7rem;
    color: var(--metrics-teal);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.metrics-kicker::before {
    width: 2rem;
    height: 2px;
    background: var(--metrics-teal);
    content: "";
}

.metrics-hero h1 {
    max-width: 980px;
    margin-top: 1.15rem;
    color: var(--metrics-text);
    font-size: clamp(2.8rem, 7vw, 5.5rem);
    font-weight: 850;
    letter-spacing: -0.06em;
    line-height: 0.98;
}

.metrics-hero h1 strong {
    color: var(--metrics-teal);
    font-weight: inherit;
}

.metrics-lead {
    max-width: 760px;
    margin-top: 1.5rem;
    color: #c7d8de;
    font-size: clamp(1.02rem, 2vw, 1.25rem);
    line-height: 1.72;
}

.metrics-trust-list {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.5rem;
}

.metrics-trust-list li {
    border: 1px solid rgba(32, 213, 189, 0.28);
    border-radius: 999px;
    color: #d2f8f2;
    background: rgba(15, 66, 72, 0.34);
    font-size: 0.78rem;
    font-weight: 800;
    padding: 0.45rem 0.75rem;
}

.metrics-calculator {
    border-block: 1px solid var(--metrics-line);
    background: rgba(5, 18, 28, 0.74);
    padding: clamp(3.5rem, 7vw, 6rem) 0;
}

.metrics-section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 2rem;
    margin-bottom: 1.6rem;
}

.metrics-section-heading p:first-child {
    color: var(--metrics-teal);
    font-size: 0.74rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.metrics-section-heading h2 {
    margin-top: 0.4rem;
    color: var(--metrics-text);
    font-size: clamp(2rem, 4vw, 3.4rem);
    font-weight: 820;
    letter-spacing: -0.04em;
    line-height: 1.05;
}

.metrics-section-heading > p:last-child {
    max-width: 34rem;
    color: var(--metrics-muted);
    line-height: 1.65;
}

.metrics-workspace {
    display: grid;
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
    gap: 1rem;
    align-items: start;
}

.metrics-panel {
    border: 1px solid var(--metrics-line);
    border-radius: 1.4rem;
    background: linear-gradient(150deg, rgba(17, 44, 61, 0.96), rgba(9, 27, 40, 0.98));
    box-shadow: 0 26px 70px rgba(0, 7, 14, 0.22);
    padding: clamp(1.25rem, 3vw, 1.8rem);
}

.metrics-panel-heading {
    display: flex;
    align-items: start;
    justify-content: space-between;
    gap: 1rem;
    margin-bottom: 1.3rem;
}

.metrics-panel-heading h3 {
    color: #fff;
    font-size: 1.35rem;
    font-weight: 800;
}

.metrics-panel-heading p {
    margin-top: 0.35rem;
    color: var(--metrics-muted);
    font-size: 0.86rem;
    line-height: 1.55;
}

.metrics-link-button {
    flex: 0 0 auto;
    border: 0;
    color: var(--metrics-teal);
    background: transparent;
    font-size: 0.8rem;
    font-weight: 800;
    cursor: pointer;
}

.metrics-form-group {
    margin-top: 1.25rem;
    padding-top: 1.25rem;
    border-top: 1px solid rgba(154, 190, 201, 0.15);
}

.metrics-form-group > h4 {
    margin-bottom: 0.8rem;
    color: #eef8fa;
    font-size: 0.9rem;
    font-weight: 800;
}

.metrics-fields {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.8rem;
}

.metrics-field {
    display: grid;
    gap: 0.42rem;
}

.metrics-field-wide {
    grid-column: 1 / -1;
}

.metrics-field > span {
    color: #a9bdc5;
    font-size: 0.72rem;
    font-weight: 800;
}

.metrics-field small {
    color: #708a9b;
    font-size: 0.66rem;
    line-height: 1.4;
}

.metrics-field input,
.metrics-field select {
    width: 100%;
    min-height: 3.1rem;
    border: 1px solid rgba(154, 190, 201, 0.22);
    border-radius: 0.72rem;
    color: #f4fbfc;
    background: var(--metrics-panel-deep);
    font: inherit;
    font-size: 0.9rem;
    outline: none;
    padding: 0 0.85rem;
}

.metrics-field input:focus,
.metrics-field select:focus {
    border-color: rgba(32, 213, 189, 0.7);
    box-shadow: 0 0 0 3px rgba(32, 213, 189, 0.08);
}

.metrics-form-actions {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    margin-top: 1.4rem;
}

.metrics-primary-button,
.metrics-secondary-button {
    min-height: 3rem;
    border-radius: 0.7rem;
    font-size: 0.82rem;
    font-weight: 850;
    cursor: pointer;
}

.metrics-primary-button {
    flex: 1;
    border: 1px solid rgba(32, 213, 189, 0.48);
    color: #052126;
    background: var(--metrics-teal);
    padding: 0.75rem 1rem;
}

.metrics-primary-button:hover {
    background: #5de5d2;
}

.metrics-secondary-button {
    border: 1px solid rgba(154, 190, 201, 0.24);
    color: #c8d9df;
    background: transparent;
    padding: 0.75rem 0.9rem;
}

.metrics-results {
    scroll-margin-top: 8rem;
}

.metrics-result-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 0.7rem;
}

.metrics-result-card {
    min-width: 0;
    border: 1px solid rgba(154, 190, 201, 0.17);
    border-radius: 0.9rem;
    background: rgba(5, 19, 29, 0.68);
    padding: 1rem;
}

.metrics-result-card small {
    color: #8199a8;
    font-size: 0.69rem;
    font-weight: 750;
}

.metrics-result-card strong {
    display: block;
    overflow-wrap: anywhere;
    margin-top: 0.4rem;
    color: var(--metrics-cyan);
    font-size: clamp(1.25rem, 3vw, 1.8rem);
    line-height: 1.1;
}

.metrics-result-card:nth-child(3n+2) strong {
    color: var(--metrics-purple);
}

.metrics-result-card:nth-child(3n) strong {
    color: var(--metrics-orange);
}

.metrics-result-card span {
    display: block;
    margin-top: 0.35rem;
    color: #6f8797;
    font-size: 0.65rem;
    line-height: 1.35;
}

.metrics-summary {
    margin-top: 0.8rem;
    border: 1px solid rgba(32, 213, 189, 0.18);
    border-radius: 0.9rem;
    background: rgba(12, 53, 59, 0.34);
    padding: 1rem;
}

.metrics-summary h4 {
    color: #eef8fa;
    font-size: 0.85rem;
    font-weight: 800;
}

.metrics-summary ul {
    display: grid;
    gap: 0.45rem;
    margin-top: 0.65rem;
    color: #a9bdc5;
    font-size: 0.8rem;
    line-height: 1.55;
}

.metrics-summary li::before {
    margin-right: 0.5rem;
    color: var(--metrics-teal);
    content: "•";
}

.metrics-explain {
    padding: clamp(4rem, 8vw, 7rem) 0;
}

.metrics-explain-grid {
    display: grid;
    grid-template-columns: minmax(0, 0.72fr) minmax(0, 1.28fr);
    gap: 1.25rem;
}

.metrics-explain-copy h2 {
    color: var(--metrics-text);
    font-size: clamp(2.2rem, 5vw, 3.8rem);
    font-weight: 830;
    letter-spacing: -0.045em;
    line-height: 1;
}

.metrics-explain-copy p {
    margin-top: 1rem;
    color: var(--metrics-muted);
    line-height: 1.7;
}

.metrics-formulas {
    display: grid;
    gap: 0.7rem;
}

.metrics-formulas details {
    border: 1px solid var(--metrics-line);
    border-radius: 0.9rem;
    background: rgba(13, 33, 48, 0.8);
    padding: 1rem;
}

.metrics-formulas summary {
    cursor: pointer;
    color: #eef8fa;
    font-weight: 800;
}

.metrics-formulas p {
    margin-top: 0.7rem;
    color: var(--metrics-muted);
    font-size: 0.88rem;
    line-height: 1.65;
}

.metrics-formulas code {
    color: var(--metrics-teal);
}

.metrics-disclaimer {
    margin-top: 1rem;
    border-left: 3px solid var(--metrics-orange);
    color: #a9bdc5;
    background: rgba(88, 56, 28, 0.2);
    font-size: 0.82rem;
    line-height: 1.6;
    padding: 0.9rem 1rem;
}

.metrics-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    border-top: 1px solid var(--metrics-line);
    color: #849da6;
    font-size: 0.82rem;
    padding: 1.3rem max(1rem, calc((100% - 1180px) / 2));
}

.metrics-footer a {
    color: var(--metrics-teal);
    font-weight: 800;
}

@media (max-width: 980px) {
    .metrics-workspace,
    .metrics-explain-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 720px) {
    .metrics-main {
        padding-top: 5.5rem;
    }

    .metrics-section-heading {
        align-items: flex-start;
        flex-direction: column;
    }

    .metrics-result-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
}

@media (max-width: 520px) {
    .metrics-fields,
    .metrics-result-grid {
        grid-template-columns: 1fr;
    }

    .metrics-field-wide {
        grid-column: auto;
    }

    .metrics-form-actions,
    .metrics-footer {
        align-items: stretch;
        flex-direction: column;
    }
}

@media (prefers-reduced-motion: reduce) {
    .metrics-link-button,
    .metrics-primary-button,
    .metrics-secondary-button {
        scroll-behavior: auto;
        transition: none;
    }
}