/* RF Tools landing page */

.rf-tools-page {
    background: var(--paper);
}

.tools-hero {
    padding-block: clamp(78px, 10vw, 138px);
    border-bottom: 1px solid var(--line);
    background-color: var(--paper);
    background-image:
        linear-gradient(rgba(0, 116, 217, 0.055) 1px,
            transparent 1px),
        linear-gradient(90deg,
            rgba(0, 116, 217, 0.055) 1px,
            transparent 1px);
    background-size: 32px 32px;
}

.tools-hero-grid {
    display: grid;
    grid-template-columns:
        minmax(0, 1.04fr) minmax(390px, 0.96fr);
    gap: clamp(64px, 9vw, 128px);
    align-items: center;
}

.tools-hero-introduction h1 {
    max-width: 780px;
    margin: 22px 0 26px;
    font-size: clamp(3.5rem, 7.4vw, 7rem);
    font-weight: 600;
    letter-spacing: -0.065em;
    line-height: 0.93;
}

.tools-hero-lead {
    max-width: 620px;
    margin: 0;
    color: var(--ink-700);
    font-size: clamp(1.12rem, 2vw, 1.38rem);
    line-height: 1.55;
}

.tools-hero-note {
    max-width: 590px;
    margin: 22px 0 0;
    color: var(--muted);
}

.tools-summary {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 48px;
    border-top: 1px solid var(--line-strong);
    border-bottom: 1px solid var(--line-strong);
}

.tools-summary div {
    display: flex;
    align-items: baseline;
    gap: 9px;
    padding: 17px 14px;
}

.tools-summary div+div {
    border-left: 1px solid var(--line);
}

.tools-summary strong {
    color: var(--blue);
    font-family: var(--font-mono);
    font-size: 1rem;
    font-weight: 500;
}

.tools-summary span {
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.7rem;
}

.tools-scope-panel {
    position: relative;
    overflow: hidden;
    padding: 30px;
    border: 1px solid var(--ink-700);
    border-radius: var(--radius);
    background-color: var(--ink-950);
    background-image:
        linear-gradient(rgba(255, 255, 255, 0.045) 1px,
            transparent 1px),
        linear-gradient(90deg,
            rgba(255, 255, 255, 0.045) 1px,
            transparent 1px);
    background-size: 32px 32px;
    box-shadow: var(--shadow-small);
    color: var(--surface);
}

.tools-scope-panel::before {
    position: absolute;
    top: 0;
    right: 0;
    left: 0;
    height: 4px;
    background:
        linear-gradient(90deg,
            var(--signal) 0 32%,
            var(--blue) 32% 100%);
    content: "";
}

.tools-panel-topline {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    color: var(--signal);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    letter-spacing: 0.08em;
}

.tools-panel-topline span:last-child {
    color: #8fd0ff;
}

.tools-scope-panel h2 {
    max-width: 470px;
    margin: 48px 0 42px;
    color: var(--surface);
    font-size: clamp(2rem, 4vw, 3.3rem);
    font-weight: 600;
    letter-spacing: -0.045em;
    line-height: 1.04;
}

.tools-scope-list {
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--dark-line);
    list-style: none;
}

.tools-scope-list li {
    display: grid;
    grid-template-columns: 46px 1fr;
    gap: 14px;
    padding: 17px 0;
    border-bottom: 1px solid var(--dark-line);
}

.tools-scope-list span {
    color: var(--signal);
    font-family: var(--font-mono);
    font-size: 0.75rem;
}

.tools-scope-list strong {
    font-weight: 500;
}

/* Shared section heading */

.tools-section-heading {
    display: grid;
    grid-template-columns:
        minmax(0, 1fr) minmax(300px, 0.72fr);
    gap: clamp(40px, 8vw, 110px);
    align-items: end;
    margin-bottom: 46px;
}

.tools-section-heading h2 {
    max-width: 700px;
    margin: 12px 0 0;
    font-size: clamp(2.2rem, 4.5vw, 4rem);
    font-weight: 600;
    letter-spacing: -0.05em;
    line-height: 1;
}

.tools-section-heading>p {
    max-width: 540px;
    margin: 0;
    color: var(--muted);
}

/* Formats */

.tools-formats {
    padding-block: clamp(72px, 9vw, 118px);
    background: var(--surface);
}

.tools-format-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 22px;
}

.tools-format-card {
    display: grid;
    grid-template-columns: 64px 1fr;
    align-content: start;
    min-height: 380px;
    padding: clamp(26px, 4vw, 44px);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background: var(--paper);
}

.tools-format-number {
    color: var(--blue);
    font-family: var(--font-mono);
    font-size: 1.5rem;
}

.tools-format-heading {
    padding-bottom: 30px;
}

.tools-format-label {
    margin: 0 0 14px;
    color: var(--blue-dark);
    font-family: var(--font-mono);
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.1em;
}

.tools-format-heading h3 {
    margin: 0 0 14px;
    font-size: clamp(1.75rem, 3vw, 2.45rem);
    font-weight: 600;
    letter-spacing: -0.04em;
}

.tools-format-heading>p:last-child {
    max-width: 48ch;
    margin: 0;
    color: var(--muted);
}

.tools-entry-list,
.tools-empty {
    grid-column: 2;
}

.tools-entry-list {
    border-top: 1px solid var(--line-strong);
}

.tools-entry-list a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 18px 0;
    border-bottom: 1px solid var(--line);
    color: var(--ink-900);
    text-decoration: none;
}

.tools-entry-list a:hover {
    color: var(--blue-dark);
}

.tools-entry-list a>span:first-child {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.tools-entry-list strong {
    font-weight: 600;
}

.tools-entry-list small {
    color: var(--muted);
    font-size: 0.86rem;
}

.tools-entry-list a>span:last-child {
    color: var(--signal-dark);
    font-family: var(--font-mono);
}

.tools-empty {
    align-self: end;
    margin: 32px 0 0;
    padding-top: 18px;
    border-top: 1px solid var(--line);
    color: var(--muted);
    font-family: var(--font-mono);
    font-size: 0.76rem;
}

/* Groups */

.tools-groups {
    padding-block: clamp(72px, 9vw, 118px);
    background: var(--surface-soft);
}

.tools-group-list {
    border-top: 1px solid var(--line-strong);
}

.tools-group-list article {
    display: grid;
    grid-template-columns: 72px minmax(0, 1fr) 72px;
    gap: 24px;
    align-items: center;
    padding: 27px 14px;
    border-bottom: 1px solid var(--line);
}

.tools-group-number {
    color: var(--blue);
    font-family: var(--font-mono);
    font-size: 1.28rem;
}

.tools-group-list h3 {
    margin: 0 0 5px;
    font-size: clamp(1.25rem, 2.2vw, 1.65rem);
    font-weight: 600;
}

.tools-group-list p {
    max-width: 720px;
    margin: 0;
    color: var(--muted);
}

.tools-group-code {
    color: var(--signal-dark);
    font-family: var(--font-mono);
    font-size: 0.7rem;
    letter-spacing: 0.08em;
    text-align: right;
}

/* Responsive */

@media (max-width: 900px) {

    .tools-hero-grid,
    .tools-section-heading,
    .tools-format-grid {
        grid-template-columns: 1fr;
    }

    .tools-scope-panel {
        max-width: 650px;
    }

    .tools-section-heading {
        align-items: start;
    }
}

@media (max-width: 620px) {
    .tools-hero-introduction h1 {
        font-size: clamp(3rem, 16vw, 4.7rem);
    }

    .tools-summary {
        grid-template-columns: 1fr;
    }

    .tools-summary div+div {
        border-top: 1px solid var(--line);
        border-left: 0;
    }

    .tools-format-card {
        grid-template-columns: 1fr;
        min-height: 0;
    }

    .tools-format-number {
        margin-bottom: 24px;
    }

    .tools-entry-list,
    .tools-empty {
        grid-column: 1;
    }

    .tools-group-list article {
        grid-template-columns: 42px minmax(0, 1fr);
    }

    .tools-group-code {
        display: none;
    }
}
/*
 * Calculator groups are generated only when they contain
 * at least one calculator.
 */
.tools-format-grid {
    grid-template-columns:
        repeat(auto-fit, minmax(340px, 1fr));
}

@media (max-width: 620px) {
    .tools-format-grid {
        grid-template-columns: 1fr;
    }
}