/* Explanation sections under the tools ("How it works"): steps, tiles, formula banner, tables, questions */
.gd { display: grid; grid-template-columns: minmax(0, 1fr); gap: 22px; margin-top: 30px; }
.gd > *, .gd-sec > * { min-width: 0; }
.gd-sec { background: var(--jb-card); border: 1px solid var(--jb-line); border-radius: 18px; padding: 26px; box-shadow: 0 6px 20px -14px rgba(16,24,40,.35); }
.gd-head { margin-bottom: 16px; }
.gd-eyebrow { display: inline-block; font-size: 11px; font-weight: 700; letter-spacing: .14em; text-transform: uppercase; color: var(--jb-green-500); }
.gd-head h2 { margin: 2px 0 6px; font-size: clamp(21px, 3vw, 27px); color: var(--jb-forest); }
.gd-head p { margin: 0; max-width: 72ch; color: var(--jb-ink-2); line-height: 1.7; }

.gd-steps { list-style: none; margin: 0; padding: 0; display: grid; gap: 14px; }
@media (min-width: 720px) { .gd-steps { grid-template-columns: repeat(auto-fit, minmax(190px, 1fr)); } }
.gd-steps li { position: relative; padding: 18px 16px 16px; border-radius: 14px; background: var(--jb-green-50); border: 1px solid var(--jb-line); }
.gd-n { display: grid; place-items: center; width: 36px; height: 36px; margin-bottom: 10px; border-radius: 50%; font-weight: 700; color: #fff; background: linear-gradient(135deg, var(--jb-forest), var(--jb-green-500)); box-shadow: 0 6px 12px -6px rgba(15,58,107,.7); }
.gd-steps b, .gd-tile b { display: block; margin-bottom: 4px; color: var(--jb-ink); }
.gd-steps p, .gd-tile p { margin: 0; font-size: 14px; line-height: 1.6; color: var(--jb-ink-2); }

.gd-tiles { display: grid; gap: 14px; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); }
.gd-tile { padding: 18px; border: 1px solid var(--jb-line); border-radius: 14px; background: var(--jb-card); transition: transform .15s, box-shadow .15s; }
.gd-tile:hover { transform: translateY(-2px); box-shadow: 0 12px 22px -16px rgba(16,24,40,.5); }
.gd-ic { display: grid; place-items: center; width: 42px; height: 42px; margin-bottom: 10px; border-radius: 12px; font-size: 19px; color: #fff; background: var(--c, var(--jb-forest)); box-shadow: 0 8px 14px -8px var(--c, #000); }
.gd-tile .gd-formula-mini { display: block; margin: 8px 0 0; padding: 7px 10px; border-radius: 8px; background: var(--jb-green-50); font-family: ui-monospace, Consolas, monospace; font-size: 12.5px; color: var(--jb-forest); line-height: 1.5; }

.gd-formula { display: flex; gap: 18px; align-items: flex-start; padding: 22px 24px; border-radius: 18px; color: #fff; background: linear-gradient(120deg, #0f3a6b, #1b6fb0 70%, #22b5db); box-shadow: 0 14px 28px -18px rgba(15,58,107,.8); }
.gd-formula .gd-ic { background: rgba(255,255,255,.18); box-shadow: none; flex: none; width: 48px; height: 48px; font-size: 22px; }
.gd-formula h3 { margin: 0 0 8px; font-size: 18px; color: #fff; }
.gd-formula p { margin: 0 0 8px; line-height: 1.7; color: rgba(255,255,255,.92); }
.gd-formula code { display: block; margin: 8px 0; padding: 10px 14px; border-radius: 10px; background: rgba(0,0,0,.22); color: #fff; font-family: ui-monospace, Consolas, monospace; font-size: 15px; line-height: 1.5; overflow-wrap: anywhere; }
.gd-formula .gd-ex { margin-top: 10px; padding-top: 10px; border-top: 1px solid rgba(255,255,255,.25); font-size: 15px; }
@media (max-width: 560px) { .gd-formula { flex-direction: column; } }

.gd-table-wrap { overflow-x: auto; border: 1px solid var(--jb-line); border-radius: 12px; }
.gd-table { width: 100%; border-collapse: collapse; font-size: 14px; }
.gd-table th, .gd-table td { text-align: left; padding: 10px 14px; border-bottom: 1px solid var(--jb-line); }
.gd-table thead th { background: var(--jb-green-50); font-size: 12px; letter-spacing: .06em; text-transform: uppercase; color: var(--jb-ink-3); }
.gd-table tbody tr:last-child td { border-bottom: 0; }
.gd-table td b { color: var(--jb-forest); }
.gd-table tfoot td { background: var(--jb-green-50); font-weight: 700; color: var(--jb-forest); }
.gd-cap { margin: 8px 2px 0; font-size: 13px; color: var(--jb-ink-3); line-height: 1.6; }

.gd-note { display: flex; gap: 12px; padding: 14px 16px; border-radius: 12px; background: #fff7ed; border: 1px solid #fdba74; color: #7c2d12; line-height: 1.6; }
.gd-note .fa { flex: none; margin-top: 3px; color: #ea580c; }

.gd-faq details { border: 1px solid var(--jb-line); border-radius: 12px; margin-bottom: 10px; background: var(--jb-card); }
.gd-faq summary { cursor: pointer; padding: 14px 16px; font-weight: 600; color: var(--jb-ink); list-style: none; display: flex; justify-content: space-between; gap: 12px; }
.gd-faq summary::-webkit-details-marker { display: none; }
.gd-faq summary::after { content: '+'; font-size: 20px; line-height: 1; color: var(--jb-green-500); transition: transform .15s; }
.gd-faq details[open] summary::after { transform: rotate(45deg); }
.gd-faq details[open] summary { color: var(--jb-forest); }
.gd-faq details p { margin: 0; padding: 0 16px 14px; line-height: 1.7; color: var(--jb-ink-2); }

.gd-next { display: flex; flex-wrap: wrap; align-items: center; gap: 10px; }
.gd-next > span { font-size: 12px; font-weight: 700; letter-spacing: .1em; text-transform: uppercase; color: var(--jb-ink-3); margin-right: 4px; }
.gd-next a { padding: 8px 14px; border-radius: 999px; border: 1px solid var(--jb-line); background: var(--jb-green-50); color: var(--jb-forest); font-size: 14px; font-weight: 600; transition: background .15s, border-color .15s; }
.gd-next a:hover { background: var(--jb-green-100); border-color: var(--jb-forest); }
@media (max-width: 560px) { .gd-sec { padding: 18px; } }
:root[data-theme="dark"] .gd-steps li, :root[data-theme="dark"] .gd-table thead th, :root[data-theme="dark"] .gd-table tfoot td, :root[data-theme="dark"] .gd-next a, :root[data-theme="dark"] .gd-tile .gd-formula-mini { background: #121a28; }
:root[data-theme="dark"] .gd-note { background: #3a2312; border-color: #7c4a1d; color: #fdba74; }