/*
 * tools.css — the free 3D tools: 3d/tools.php (index cards) and 3d/calculators.php (twelve calculators,
 * logic in js/tools-calc.js). Every class starts with .tools- so nothing here reaches other pages.
 * Built on site.css tokens (--surface, --line, --accent …) and its .card / .field / .feature / .cta-band.
 * --tools-top is the height of the sticky site header, set by tools-calc.js (fallback below).
 */

/* ---- Index (3d/tools.php) ---- */
.tools-cards { display: grid; grid-template-columns: repeat(2, 1fr); gap: 20px; }
.tools-card-main { grid-row: span 2; }
.tools-card h2 { font-size: 1.25rem; margin: 0 0 8px; }
.tools-card h2 a { color: var(--ink); }
.tools-card p { flex: 0 0 auto; }
.tools-card .link-arrow { margin-top: auto; padding-top: 6px; }
.tools-links { list-style: none; padding: 0; margin: 0 0 18px; display: grid; grid-template-columns: 1fr 1fr; gap: 8px; }
.tools-links a { display: grid; gap: 2px; height: 100%; padding: 10px 12px; border-radius: 12px; border: 1px solid var(--line); background: var(--tint-1); color: var(--ink); }
.tools-links a:hover { text-decoration: none; border-color: color-mix(in srgb, var(--accent-text) 40%, transparent); background: var(--tint-2); }
.tools-links strong { font-size: .95rem; }
.tools-links small { color: var(--muted); font-size: .82rem; line-height: 1.35; }
@media (max-width: 860px) {
    .tools-cards { grid-template-columns: 1fr; }
    .tools-card-main { grid-row: auto; }
}
@media (max-width: 480px) { .tools-links { grid-template-columns: 1fr; } }

/* ---- Calculators (3d/calculators.php) ---- */
.tools-layout { display: grid; grid-template-columns: 230px minmax(0, 1fr); gap: 28px; align-items: start; }
.tools-main { display: grid; gap: 24px; min-width: 0; }
.tools-nav { position: sticky; top: calc(var(--tools-top, 112px) + 14px); z-index: 5; }
.tools-nav ul { list-style: none; margin: 0; padding: 10px; display: grid; gap: 2px; border: 1px solid var(--line); border-radius: var(--radius); background: var(--surface); }
.tools-nav a { display: block; padding: 7px 12px; border-radius: 10px; color: var(--ink-2); font-size: .92rem; }
.tools-nav a:hover { text-decoration: none; background: var(--tint-1); color: var(--ink); }
.tools-nav a.active { color: var(--accent-ink); background: linear-gradient(135deg, var(--accent), var(--accent-2)); }

.tools-calc { scroll-margin-top: calc(var(--tools-top, 112px) + 16px); min-width: 0; }
.tools-calc h2 { font-size: 1.35rem; margin: 0 0 6px; }
.tools-calc > .muted { margin: 0 0 16px; }
.tools-calc-head { display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: 10px; }
.tools-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(190px, 1fr)); gap: 14px 16px; margin-bottom: 16px; }
.tools-grid[hidden] { display: none; }
.tools-field { align-content: start; }
.tools-field small { font-size: .8rem; line-height: 1.35; }
.tools-unit { position: relative; display: flex; align-items: stretch; }
.tools-unit input { flex: 1; min-width: 0; }
.tools-unit input:has(+ .tools-unit-txt) { border-top-right-radius: 0; border-bottom-right-radius: 0; }
.tools-unit-txt { display: grid; place-items: center; padding: 0 10px; border: 1px solid var(--line-2); border-left: 0; border-radius: 0 12px 12px 0;
    background: var(--tint-1); color: var(--muted); font-size: .85rem; white-space: nowrap; }
.tools-sr { position: absolute; width: 1px; height: 1px; overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; }
.tools-sub { border: 1px dashed var(--line-2); border-radius: 14px; padding: 12px 14px 0; margin: 0 0 16px; }
.tools-sub legend { padding: 0 6px; font-size: .9rem; color: var(--ink-2); font-weight: 600; }

/* Segmented radio switch (Rp / $, input mode) */
.tools-seg { display: inline-flex; gap: 2px; padding: 3px; margin: 0 0 14px; border: 1px solid var(--line-2); border-radius: 999px; background: var(--surface); }
.tools-calc-head .tools-seg { margin: 0; }
.tools-seg label { position: relative; cursor: pointer; }
.tools-seg input { position: absolute; opacity: 0; inset: 0; width: 100%; height: 100%; margin: 0; cursor: pointer; }
.tools-seg span { display: block; padding: 5px 14px; border-radius: 999px; font-weight: 650; font-size: .9rem; color: var(--muted); }
.tools-seg input:checked + span { color: var(--accent-ink); background: linear-gradient(135deg, var(--accent), var(--accent-2)); }
.tools-seg input:focus-visible + span { outline: 3px solid color-mix(in srgb, var(--accent-text) 60%, transparent); outline-offset: 1px; }

/* Results */
.tools-out { border-radius: 14px; background: var(--bg-alt); border: 1px solid var(--line); padding: 6px 16px; margin-bottom: 14px; }
.tools-out dl { margin: 0; }
.tools-out dl > div { display: flex; justify-content: space-between; align-items: baseline; gap: 14px; padding: 8px 0; border-bottom: 1px solid var(--line); }
.tools-out dl > div:last-child { border-bottom: 0; }
.tools-out dt { color: var(--ink-2); }
.tools-out dd { margin: 0; text-align: right; font-variant-numeric: tabular-nums; font-weight: 650; overflow-wrap: anywhere; }
.tools-out-main dd { font-size: 1.15rem; font-weight: 800; color: var(--accent-text); }
.tools-out output.tools-warn { color: var(--danger); }
.tools-out output.tools-ok { color: var(--success); }

.tools-how { margin: 0; padding: 10px 14px; font-size: .86rem; line-height: 1.5; color: var(--muted); border-left: 3px solid color-mix(in srgb, var(--accent) 45%, transparent);
    background: var(--tint-1); border-radius: 0 10px 10px 0; }
.tools-how strong { color: var(--ink-2); }

/* Tables */
.tools-table-wrap { overflow-x: auto; margin-bottom: 14px; }
.tools-table { width: 100%; border-collapse: collapse; font-size: .9rem; }
.tools-table caption { text-align: left; font-size: .85rem; color: var(--muted); padding-bottom: 6px; }
.tools-table th, .tools-table td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--line); white-space: nowrap; }
.tools-table th { color: var(--ink-2); font-weight: 650; background: var(--tint-1); }
.tools-table td:first-child { white-space: normal; }

/* Volumetric meter */
.tools-meter { height: 10px; border-radius: 999px; background: var(--tint-2); overflow: hidden; margin: 0 0 12px; }
.tools-meter span { display: block; height: 100%; width: 0; border-radius: 999px; background: var(--success); transition: width .2s; }
.tools-meter span.tools-meter-hi { background: #d97706; }
.tools-meter span.tools-meter-over { background: var(--danger); }

/* Magic layer-height list */
.tools-list-label { margin: 0 0 6px; font-size: .9rem; color: var(--ink-2); }
.tools-chips { display: flex; flex-wrap: wrap; gap: 6px; margin: 0 0 14px; }
.tools-chips span { padding: 3px 10px; border-radius: 999px; border: 1px solid var(--line-2); font-size: .86rem; font-variant-numeric: tabular-nums; }
.tools-chips span.tools-chip-hit { color: var(--accent-ink); border-color: transparent; background: linear-gradient(135deg, var(--accent), var(--accent-2)); }

.tools-faq h2 { font-size: 1.35rem; }
.tools-cta { padding: 44px 22px; }

/* Phones: the section list becomes a sticky, sideways-scrolling strip under the header. */
@media (max-width: 900px) {
    .tools-layout { grid-template-columns: minmax(0, 1fr); gap: 16px; }
    .tools-nav { top: var(--tools-top, 104px); margin: 0 -20px; padding: 8px 20px; background: var(--header-bg);
        -webkit-backdrop-filter: blur(12px); backdrop-filter: blur(12px); border-bottom: 1px solid var(--line); }
    .tools-nav ul { display: flex; gap: 6px; padding: 0; border: 0; border-radius: 0; background: none; overflow-x: auto; scrollbar-width: none; }
    .tools-nav ul::-webkit-scrollbar { display: none; }
    .tools-nav a { white-space: nowrap; border: 1px solid var(--line-2); border-radius: 999px; padding: 5px 12px; font-size: .86rem; background: var(--surface); }
    .tools-calc { scroll-margin-top: calc(var(--tools-top, 104px) + 64px); }
}
@media (max-width: 480px) {
    .tools-calc.card { padding: 18px 16px; }
    .tools-grid { grid-template-columns: 1fr 1fr; gap: 12px; }
    .tools-out { padding: 4px 12px; }
    .tools-out dl > div { flex-wrap: wrap; gap: 2px 12px; }
}
@media (max-width: 360px) { .tools-grid { grid-template-columns: 1fr; } }