/* Compact illustrated water-test instruction cards. */
.wt .wt-guide{margin:16px 0;border:1px solid var(--sf-line,#394349);border-radius:18px;overflow:hidden;background:var(--sf-panel,#10191e)}
.wt .wt-guide svg{display:block;width:100%;height:auto;max-height:200px}
.wt .wt-guide figcaption{padding:16px}.wt .wt-guide figcaption strong{display:block;font-size:1rem}.wt .wt-guide figcaption p{margin:8px 0 0;line-height:1.5;font-size:1rem}
.wt .wt-guide-sequence{display:grid;grid-template-columns:repeat(3,minmax(0,1fr));gap:12px}.wt .wt-guide-sequence .wt-guide{min-width:0}
@media(max-width:650px){.wt .wt-guide-sequence{grid-template-columns:1fr}.wt .wt-guide svg{max-height:170px}}

.wt .wt-guide-real img{display:block;width:100%;height:auto;object-fit:contain;background:#e5e2dc;border-radius:16px 16px 0 0}

/* Water-test-only layout; shared host navigation remains unchanged. */
.wt{--wt-accent:#48d8cc;--wt-surface:var(--sf-panel,#171b20);--wt-border:var(--sf-line,#42434b)}
.wt .wt-help{margin:16px 0;border:1px solid var(--wt-border);border-radius:14px;padding:0 16px}
.wt .wt-help summary{min-height:48px;display:list-item;align-content:center;cursor:pointer;font-weight:700;font-size:13px;letter-spacing:.04em;color:var(--wt-accent)}
.wt .wt-help[open]{padding-bottom:16px}
.wt .wt-reference{border:1px solid var(--wt-border);border-radius:16px;padding:20px;background:var(--wt-surface);line-height:1.6}
.wt .wt-reference h3{margin:0 0 8px;font-size:15px;letter-spacing:.04em}
.wt .wt-reference a{color:var(--wt-accent)}
.wt .wt-timing{margin:16px 0}.wt .wt-timing div{display:flex;justify-content:space-between;padding:10px 0;border-bottom:1px solid var(--wt-border)}
.wt .wt-timing dd{margin:0;font-weight:700}.wt .wt-timing dt{font-weight:600}
.wt #wt-form,.wt #wt-results{max-width:720px;margin-inline:auto}
.wt .wt-step{min-width:0}.wt .sf-field{display:grid;gap:8px;margin:16px 0}
.wt .sf-field input,.wt .sf-field select{box-sizing:border-box;max-width:100%;min-height:48px;font-size:16px;border-radius:10px}
.wt .sf-check{display:flex;gap:12px;align-items:center;min-height:48px;margin:8px 0}
.wt .sf-actions{display:flex;flex-wrap:wrap;gap:10px;margin:24px 0}
.wt .sf-actions button{min-height:48px;flex:1 1 130px}

.wt .wt-timing div{border-left:4px solid #e8bb56;padding-left:12px}.wt .wt-timing div:nth-child(1){border-left-color:#ef7770;background:#ef777010}.wt .wt-timing div:nth-child(2){border-left-color:#efa35d;background:#efa35d10}.wt .wt-timing div:nth-child(3){background:#e8bb5610}

.wt .wt-row{display:flex;flex-direction:column;align-items:flex-start;gap:6px;width:100%;text-align:left;margin:10px 0;padding:16px;border-left:3px solid var(--wt-accent)}
.wt .wt-row strong{overflow-wrap:anywhere}.wt .wt-row span{font-size:13px;font-weight:400;text-transform:none;line-height:1.5}
.wt .sf-primary{background:var(--wt-accent);color:#071b1b;border-color:var(--wt-accent)}
.wt fieldset{min-width:0;margin:20px 0;padding:16px;border:1px solid var(--wt-border);border-radius:14px}