.container--water-mix { max-width: 1040px; }
.water-mix-hero { background: linear-gradient(135deg, #eaf9ff, #f7fbff); }
.water-mix-eyebrow,.water-mix-kicker { color: #126b8c; font-size: .78rem; font-weight: 800; letter-spacing: .12em; margin: 0 0 .35rem; }
.water-mix-trust { color: #2d6446; font-weight: 700; }
.water-mix-heading { align-items: start; display: flex; gap: 1rem; justify-content: space-between; }
.water-mix-heading h2 { margin-top: 0; }
.water-mix-heading__actions { display: flex; flex-wrap: wrap; gap: .55rem; }
.water-mix-pair { display: grid; gap: 1rem; grid-template-columns: repeat(2,minmax(0,1fr)); }
.water-mix-group { border: 1px solid #cddfea; border-radius: .85rem; margin: 0; padding: 1rem; }
.water-mix-group legend { color: #175f7b; font-size: 1.08rem; font-weight: 800; padding: 0 .35rem; }
.water-mix-fields { display: grid; gap: .8rem; grid-template-columns: minmax(0,2fr) minmax(5rem,1fr); }
.water-mix-field { display: grid; gap: .4rem; }
.water-mix-field--temperature { grid-column: 1/-1; }
.water-mix-field label { font-weight: 750; }
.water-mix-input { align-items: center; display: grid; grid-template-columns: minmax(0,1fr) auto; }
.water-mix-input input { border-bottom-right-radius: 0; border-top-right-radius: 0; min-width: 0; }
.water-mix-input span { align-items: center; align-self: stretch; background: #eef7fa; border: 1px solid #bdcad8; border-left: 0; border-radius: 0 .5rem .5rem 0; display: flex; padding: 0 .75rem; }
.water-mix-notice { background: #fff8e8; border-left: 4px solid #d09a21; margin-top: 1rem; padding: .85rem 1rem; }
.water-mix-actions { margin-top: 1.15rem; }
.water-mix-error { min-height: 1.5em; }
.water-mix-results { border-top: 1px solid #d7e4f1; margin-top: 1.4rem; padding-top: 1.4rem; }
.water-mix-results h2 { margin-top: 0; }
.water-mix-main { background: linear-gradient(135deg,#137b9f,#19577e); border-radius: .9rem; color: #fff; padding: 1.25rem; text-align: center; }
.water-mix-main span { display: block; font-size: .92rem; }
.water-mix-main strong { display: block; font-size: clamp(1.9rem,5vw,2.9rem); overflow-wrap: anywhere; }
.water-mix-result-grid { display: grid; gap: .8rem; grid-template-columns: repeat(4,minmax(0,1fr)); margin-top: 1rem; }
.water-mix-result-grid>div { background: #f6f9fb; border: 1px solid #dbe5ec; border-radius: .75rem; padding: .9rem; }
.water-mix-result-grid span { color: #566474; display: block; font-size: .88rem; }
.water-mix-result-grid strong { display: block; margin-top: .25rem; overflow-wrap: anywhere; }
.water-mix-copy-row { align-items: center; display: flex; flex-wrap: wrap; gap: .75rem; margin-top: 1rem; }
.water-mix-copy-status { margin: 0; }
.water-mix-formula { background: #eef4fb; border-radius: .45rem; display: block; margin: .8rem 0; overflow-x: auto; padding: .8rem; white-space: nowrap; }
@media (max-width:640px){.water-mix-heading{display:block}.water-mix-heading__actions{margin-top:.8rem}.water-mix-heading__actions .button-secondary{flex:1}.water-mix-pair,.water-mix-result-grid{grid-template-columns:1fr}.water-mix-fields{grid-template-columns:minmax(0,2fr) minmax(4.8rem,1fr)}.water-mix-main strong{font-size:2rem}}