/* ===================================================================
   Shared calculator-page kit — layout, form controls, location panel,
   live-trailer cards + skeleton. Used by #5/#6/#8. Inherits tokens +
   nav/footer/base buttons from /styles.css. Flat design.
   =================================================================== */

/* header strip */
.calc-head { background: var(--nt-green); border-bottom: none; }
.calc-head__inner { max-width: var(--maxw); margin: 0 auto; padding: 2rem 1.25rem 2.2rem; }
.crumbs { font-size: .82rem; color: rgba(255,255,255,.85); margin-bottom: .6rem; }
.crumbs a { color: #fff; font-weight: 600; }
.crumbs a:hover { text-decoration: underline; }
.calc-head__title { font-size: clamp(1.6rem, 3.4vw, 2.3rem); font-weight: 800; color: #fff; }
.calc-head__sub { margin: .5rem 0 0; color: rgba(255,255,255,.92); max-width: 640px; font-size: 1.02rem; }

/* layout */
.calc { max-width: var(--maxw); margin: 0 auto; padding: 2.5rem 1.25rem 3.5rem; }
.calc__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1.5rem; align-items: start; }
.panel { background: #fff; border: 1px solid var(--line); border-radius: var(--radius); padding: 1.5rem; }
.panel__title { font-size: 1rem; font-weight: 700; margin: 0 0 1rem; }
.panel__title--mt { margin-top: 1.75rem; }

/* fields */
.field { display: block; margin-bottom: 1rem; }
.field__label { display: block; font-size: .85rem; font-weight: 600; margin-bottom: .4rem; }
.field__help { display: block; font-size: .8rem; color: var(--ink-soft); margin-top: .4rem; }
.input {
  width: 100%; font-family: var(--font); font-size: 1rem; color: var(--ink);
  border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .7rem .85rem; background: #fff;
  transition: border-color .15s ease, box-shadow .15s ease;
}
.input:focus { outline: none; border-color: var(--nt-green); box-shadow: 0 0 0 3px rgba(45,140,60,.15); }
.input:disabled { background: var(--bg-muted); color: var(--ink-soft); cursor: not-allowed; }
select.input { appearance: none; -webkit-appearance: none; cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' viewBox='0 0 12 8'%3E%3Cpath fill='%235A625A' d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat; background-position: right .8rem center; padding-right: 2rem; }
.grid3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: .6rem; }
.grid2 { display: grid; grid-template-columns: repeat(2, 1fr); gap: .75rem; }

/* mode toggle + chips */
.modes { display: inline-flex; background: var(--bg-muted); border: 1px solid var(--line); border-radius: 999px; padding: 3px; margin-bottom: 1rem; }
.mode { border: none; background: transparent; font-family: var(--font); font-size: .85rem; font-weight: 600; color: var(--ink-soft); padding: .45rem .95rem; border-radius: 999px; cursor: pointer; }
.mode.is-active { background: #fff; color: var(--nt-green); box-shadow: 0 1px 2px rgba(16,24,16,.08); }
.chips { display: flex; flex-wrap: wrap; gap: .5rem; }
.chip { font-family: var(--font); font-size: .86rem; font-weight: 600; color: var(--ink); background: #fff; border: 1px solid var(--line); border-radius: 999px; padding: .45rem .85rem; cursor: pointer; }
.chip:hover { border-color: var(--nt-green); }
.chip.is-active { background: var(--nt-green); border-color: var(--nt-green); color: #fff; }

/* result-value hero (calculated number) */
.rrow { display: flex; justify-content: space-between; align-items: baseline; gap: 1rem; padding: .5rem 0; border-bottom: 1px solid var(--line); }
.rrow:last-child { border-bottom: none; }
.rrow span { color: var(--ink-soft); font-size: .9rem; }
.rrow strong { font-weight: 700; text-align: right; }
.hero-num { text-align: center; padding: 1.25rem 1rem; background: var(--bg-muted); border-radius: var(--radius-sm); margin: .25rem 0 1rem; }
.hero-num__val { font-size: 2.2rem; font-weight: 800; color: var(--nt-green); letter-spacing: -0.02em; line-height: 1; }
.hero-num__label { font-size: .85rem; color: var(--ink-soft); margin-top: .45rem; }
.muted { color: var(--ink-soft); }
.note { font-size: .82rem; color: var(--ink-soft); margin: .5rem 0 0; }
.warn { margin: .5rem 0 0; font-size: .85rem; color: #92400E; background: #FEF3C7; border: 1px solid #FDE68A; border-radius: var(--radius-sm); padding: .6rem .8rem; }

/* buttons (extend root .btn) */
.btn--green { background: var(--nt-green); color: #fff; }
.btn--green:hover { background: #256f30; }
.btn--block { width: 100%; }
.btn--sm { padding: .5rem .95rem; font-size: .85rem; }
.btn:disabled { opacity: .55; cursor: default; }

/* location panel */
.loc__or { text-align: center; color: var(--ink-soft); font-size: .8rem; margin: .6rem 0; }
.loc__zip { display: flex; gap: .5rem; }
.loc__zip input { flex: 1; border: 1px solid var(--line); border-radius: var(--radius-sm); padding: .7rem .85rem; font-family: var(--font); font-size: 1rem; }
.loc__zip input:focus { outline: none; border-color: var(--nt-green); box-shadow: 0 0 0 3px rgba(45,140,60,.15); }
.loc__auto { margin: 0 0 .75rem; font-size: .88rem; color: var(--ink-soft); }
.loc__result { margin: 0 0 .75rem; font-size: .9rem; font-weight: 600; color: var(--nt-green); }
.loc__err { margin: .7rem 0 0; font-size: .84rem; color: #92400E; background: #FEF3C7; border: 1px solid #FDE68A; border-radius: var(--radius-sm); padding: .55rem .75rem; }

/* results + cards */
.results { min-height: 260px; }
.results__empty { text-align: center; color: var(--ink-soft); padding: 2.5rem 1rem; }
.results__empty-icon { font-size: 2.2rem; margin-bottom: .6rem; }
.results__head { margin-bottom: 1rem; }
.results__count { font-size: 1.3rem; font-weight: 800; }
.results__sub { color: var(--ink-soft); font-size: .86rem; margin-top: .2rem; }
.results__state { text-align: center; color: var(--ink-soft); padding: 2rem 1rem; }
.results__state p { margin: 0 0 1rem; }
.cards-list { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.tcard { border: 1px solid var(--line); border-radius: var(--radius-sm); overflow: hidden; display: flex; flex-direction: column; background: #fff; transition: border-color .12s ease, transform .1s ease; }
.tcard:hover { border-color: var(--nt-green); transform: translateY(-2px); }
.tcard__img { width: 100%; height: 130px; object-fit: cover; background: var(--bg-muted); display: block; }
.tcard__img--ph { display: grid; place-items: center; font-size: 2rem; }
.tcard__body { padding: .85rem .9rem 1rem; display: flex; flex-direction: column; flex: 1; }
.tcard__title { font-size: .96rem; font-weight: 700; line-height: 1.25; }
.tcard__meta { font-size: .82rem; color: var(--ink-soft); margin-top: .3rem; }
.tcard__rating { color: #B7791F; font-weight: 600; }
.tcard__specs { font-size: .8rem; color: var(--ink-soft); margin-top: .35rem; }
.tcard__foot { display: flex; align-items: center; justify-content: space-between; gap: .5rem; margin-top: auto; padding-top: .75rem; }
.tcard__price { font-weight: 800; font-size: 1.05rem; }
.tcard__per { font-weight: 500; color: var(--ink-soft); font-size: .78rem; }
.skel { background: linear-gradient(90deg, #eee 25%, #f5f5f5 37%, #eee 63%); background-size: 400% 100%; animation: sk 1.2s ease infinite; border-radius: 6px; }
@keyframes sk { 0% { background-position: 100% 0; } 100% { background-position: 0 0; } }
.skel--line { height: 12px; margin: .5rem 0; }
.skel--line.short { width: 60%; }

/* responsive */
@media (max-width: 900px) { .calc__grid { grid-template-columns: 1fr; } }
@media (max-width: 520px) { .cards-list { grid-template-columns: 1fr; } .grid3 { grid-template-columns: 1fr 1fr; } }