/* No hero on this page: the header is always the white pill, so content starts below it. */
.calc-main{ padding-top:calc(var(--header-h) + 44px); }

.zone-note{ font-style:italic; color:var(--ink-soft); }

.shared-banner{
  margin-top:20px; background:#E4ECFF; border:1px solid var(--line); border-radius:var(--radius-md);
  padding:14px 18px; font-size:13.5px; color:var(--ink); display:flex; align-items:center; justify-content:space-between; gap:12px; flex-wrap:wrap;
}

.calc-grid{ display:grid; grid-template-columns:minmax(280px,380px) 1fr; gap:24px; margin:28px 0 12px; }
@media (max-width:900px){ .calc-grid{ grid-template-columns:1fr; } }

.panel-title{ font-size:17px; font-weight:600; margin:0 0 4px; }
.panel-desc{ color:var(--ink-soft); font-size:13px; margin:0 0 16px; }

.panel-header-row{ display:flex; align-items:flex-start; justify-content:space-between; gap:12px; }
.hero-sub.tank-selected-label{ font-weight:600; color:var(--ink); margin-top:12px; }

/* Searchable area combo box */
.combo{ position:relative; }
.combo-list{
  display:none; position:absolute; top:calc(100% + 6px); left:0; right:0;
  max-height:260px; overflow-y:auto; background:var(--card); border:1px solid var(--line);
  border-radius:var(--radius-sm); z-index:20; box-shadow:0 8px 24px rgba(0,0,0,.15);
}
.combo-list.open{ display:block; }
.combo-option{ padding:10px 12px; font-size:14px; cursor:pointer; }
.combo-option:hover, .combo-option.highlighted{ background:var(--paper); }
.combo-option mark{ background:none; color:var(--blue); font-weight:600; }
.combo-option.combo-search{ color:var(--blue); font-weight:600; }
.combo-empty{ padding:12px; font-size:13px; color:var(--ink-soft); text-align:center; }

/* "This month, near you" live station insight card */
.rain-insight-card{
  background:linear-gradient(135deg,var(--blue) 0%, #0A2B7A 100%);
  color:#EAF1FA; border-radius:var(--radius-lg); padding:22px 24px;
  box-shadow:0 14px 28px -18px rgba(9,82,223,.7);
}
.rain-insight-card.unavailable{ background:var(--paper); color:var(--ink-soft); box-shadow:none; border:1px dashed var(--line); }
.ri-eyebrow{ font-weight:600; font-size:10.5px; letter-spacing:.12em; text-transform:uppercase; color:#D6E5FF; margin:0 0 8px; }
.rain-insight-card.unavailable .ri-eyebrow{ color:var(--ink-soft); }
.ri-headline{ font-weight:600; font-variant-numeric:tabular-nums; font-size:23px; margin:0 0 8px; }
.ri-headline span{ display:block; font-size:14px; font-weight:400; color:#C6D6F2; margin-top:4px; }
.ri-text{ font-size:13px; line-height:1.6; color:#C6D6F2; margin:0; }
.rain-insight-card.unavailable .ri-text{ color:var(--ink-soft); }
.ri-text b{ color:#fff; }
.ri-text + .ri-text{ margin-top:6px; }

/* Sub-sections within the card ("Usual for September", "Your tank, 2026")
   so the card reads as a few short, labelled chunks instead of one
   continuous block of text. */
.ri-stack{ display:grid; grid-template-columns:repeat(auto-fit,minmax(210px,1fr)); gap:14px; align-items:stretch; }
/* Light-blue cards (same theme as a selected house-size option). */
.ri-card-light{
  background:#E4ECFF; border:1.5px solid var(--blue); border-radius:var(--radius-lg); padding:22px 24px;
}
.ri-card-light .ri-block{ padding:0; margin:0; border:none; position:relative; }
/* Colour hierarchy: solid blue card > mid-blue card > light-blue card. Stats stack vertically. */
.ri-card-light.mid{ background:#A4C1FF; }
.ri-card-light.mid .ri-stat-label{ color:#2F4373; }
.ri-card-light:not(.mid){ border-color:transparent; }
.ri-card-light .ri-stat-row{ flex-direction:column; gap:28px; }
/* In a row the cards are narrow, so the popover floats over the layout instead of stretching the card. */
.ri-card-light .info-popover{ position:absolute; top:100%; right:0; width:min(300px, calc(100vw - 64px)); max-width:none; }
.ri-card-light .info-popover::before{ display:none; }
.ri-card-light .ri-block-title{ color:var(--blue); }
.ri-card-light .ri-stat-val{ color:var(--ink); }
.ri-card-light .ri-stat-label{ color:var(--ink-soft); }
.ri-card-light .info-icon{ border-color:var(--line); background:#fff; color:var(--ink-soft); width:16px; height:16px; }
.ri-card-light .info-icon:hover, .ri-card-light .info-icon[aria-expanded="true"]{ border-color:var(--blue); color:var(--blue); background:#fff; }
.ri-block{ padding-top:16px; margin-top:16px; border-top:1px solid rgba(234,241,250,.18); }
.rain-insight-card.unavailable .ri-block{ border-top-color:var(--line); }
.ri-block-title{ font-weight:600; font-size:10.5px; letter-spacing:.1em; text-transform:uppercase; color:var(--sky); margin:0 0 10px; }
.rain-insight-card.unavailable .ri-block-title{ color:var(--ink-soft); }
.ri-stat-row{ display:flex; gap:28px; flex-wrap:wrap; }
.ri-stat{ display:flex; flex-direction:column; gap:4px; }
.ri-stat-val{ font-weight:600; font-variant-numeric:tabular-nums; font-size:18px; color:#fff; line-height:1; }
.rain-insight-card.unavailable .ri-stat-val{ color:var(--ink); }
.ri-stat-label{ font-size:11.5px; color:#C6D6F2; display:inline-flex; align-items:center; gap:4px; }
.rain-insight-card.unavailable .ri-stat-label{ color:var(--ink-soft); }
.rain-insight-card .info-icon{ border-color:rgba(255,255,255,.35); background:rgba(255,255,255,.1); color:#EAF1FA; width:16px; height:16px; }
.rain-insight-card .info-icon:hover, .rain-insight-card .info-icon[aria-expanded="true"]{ border-color:#fff; color:#fff; background:rgba(255,255,255,.22); }

/* Rainfall source comparison bars */
.rain-compare{ display:flex; flex-direction:column; gap:10px; }
.rain-bar-row{
  display:grid; grid-template-columns:1fr; gap:6px; text-align:left; width:100%;
  background:var(--paper); border:1.5px solid var(--line); border-radius:var(--radius-md);
  padding:12px 14px; cursor:pointer; font-family:inherit; transition:border-color .15s, background .15s, transform .12s;
}
.rain-bar-row:hover{ border-color:#C3D5F5; }
.rain-bar-row.active{ border-color:var(--blue); background:#EAF1FF; box-shadow:0 8px 20px -14px rgba(9,82,223,.5); }
.rain-bar-label{ font-size:12.5px; font-weight:500; color:var(--ink-soft); display:flex; justify-content:space-between; align-items:center; }
.rain-bar-row.active .rain-bar-label{ color:var(--blue-deep); font-weight:600; }
.tag-used{
  font-size:9.5px; text-transform:uppercase; letter-spacing:.05em; color:#fff; font-weight:600;
  background:var(--blue); border-radius:999px; padding:3px 9px;
}
.rain-bar-track{ background:var(--paper-2); border-radius:6px; height:8px; overflow:hidden; }
.rain-bar-fill{ height:100%; background:linear-gradient(90deg,var(--blue-bright),var(--blue)); border-radius:6px; }
.rain-bar-val{ font-weight:600; font-variant-numeric:tabular-nums; font-size:11.5px; color:var(--ink-soft); }

/* Results side */
.results{ display:flex; flex-direction:column; gap:20px; }
.hero-card{
  background:linear-gradient(165deg, #FFFFFF 0%, #F6FAFF 100%);
  border:1px solid var(--line); border-radius:var(--radius-lg);
  padding:clamp(26px,3.4vw,36px); box-shadow:var(--shadow-lg); position:relative; overflow:hidden;
}
.hero-card::before{
  content:""; position:absolute; top:0; left:0; right:0; height:5px;
  background:linear-gradient(90deg,var(--blue-bright),var(--blue));
}
.hero-label{ font-size:13.5px; font-weight:600; color:var(--ink-soft); margin:0 0 8px; text-transform:uppercase; letter-spacing:.04em; }
.hero-number{ font-weight:600; font-variant-numeric:tabular-nums; font-size:clamp(34px,5vw,50px); color:var(--navy); margin:0; line-height:1; letter-spacing:-.01em; }
.hero-number .unit{ font-size:.36em; font-weight:600; color:var(--blue); margin-left:8px; }
.hero-sub{ color:var(--ink-soft); font-size:14.5px; margin-top:10px; font-weight:500; }

.config-grid{ display:grid; grid-template-columns:repeat(auto-fit,minmax(118px,1fr)); gap:10px; margin-top:14px; }
.config-card{
  background:var(--paper); border:1px solid var(--line); border-radius:var(--radius-sm);
  padding:10px 8px 12px; text-align:center; cursor:pointer; transition:border-color .15s, background .15s;
}
.config-card:hover{ border-color:var(--blue-bright); }
.config-card.selected{ border-color:var(--clay); background:#FBEDE4; }
.config-card .thumb svg{ width:100%; height:64px; }
.config-card .cname{ font-size:12.5px; font-weight:600; margin-top:6px; }
.config-card .cdims{ font-weight:600; font-variant-numeric:tabular-nums; font-size:11px; color:var(--ink-soft); margin-top:2px; }

.tank-visual{ margin-top:20px; background:var(--paper); border:1px solid var(--line); border-radius:var(--radius-sm); padding:12px 8px 4px; display:flex; justify-content:center; }
.tank-visual svg{ max-width:100%; height:auto; }
.tank-flip-stage{ position:relative; width:100%; display:flex; justify-content:center; perspective:700px; }
.tank-flip-inner{ transform-style:preserve-3d; will-change:transform, opacity; }
.swap-btn{
  position:absolute; right:6px; bottom:2px; width:36px; height:36px; border-radius:50%;
  background:var(--card); border:1px solid var(--line); color:var(--blue); cursor:pointer;
  display:flex; align-items:center; justify-content:center; box-shadow:0 4px 10px rgba(0,0,0,.1);
  transition:border-color .15s, transform .15s;
}
.swap-btn:hover{ border-color:var(--blue); transform:scale(1.06); }
@media (prefers-reduced-motion: reduce){
  .tank-flip-inner{ transition:none !important; }
}


/* Overflow Risk (monthly) */
.month-picker{ display:flex; flex-wrap:wrap; gap:6px; margin-top:14px; }
.month-picker .seg-btn{ flex:1 1 60px; text-align:center; padding:9px 4px; font-size:12px; }
.month-picker .seg-btn.active{ background:var(--blue); border-color:var(--blue); color:#fff; font-weight:600; }
.spill-result{ margin-top:18px; }
.spill-month{ font-weight:600; font-size:11px; letter-spacing:.12em; text-transform:uppercase; color:var(--ink-soft); margin:0 0 6px; }
.spill-percent{ font-weight:600; font-variant-numeric:tabular-nums; font-size:23px; color:var(--ink); margin:0; }
.spill-percent b{ color:var(--blue); }
.spill-percent.unavailable{ font-size:14px; font-weight:500; color:var(--ink-soft); }
.spill-note{ font-size:11.5px; color:var(--ink-soft); line-height:1.55; margin:10px 0 0; }

.save-actions{ display:flex; gap:10px; flex-wrap:wrap; }
.save-actions .btn{ flex:1 1 160px; }
.share-box{ display:flex; gap:8px; margin-top:14px; }
.share-box input{ flex:1; padding:10px 12px; border-radius:var(--radius-sm); border:1.5px solid var(--line); font-weight:500; font-size:12.5px; background:var(--paper); }

/* Compact review form (used in the Reviews pop-up): name + stars on one row, comment + button on the next. */
.review-form{ display:grid; grid-template-columns:1fr auto; gap:10px 14px; align-items:end; }
.review-form .field{ margin:0; min-width:0; }
.review-form .field label{ margin-bottom:4px; font-size:12px; }
.review-form input[type=text], .review-form textarea{ padding:9px 12px; }
.review-form textarea{ min-height:0; height:44px; resize:vertical; }
.review-form .stars button{ font-size:22px; line-height:1; }
.review-form .field:nth-child(1){ grid-column:1; }
.review-form .field:nth-child(2){ grid-column:2; }
.review-form .field:nth-child(3){ grid-column:1; }
.review-form button[type=submit]{ grid-column:2; min-height:44px; padding:0 22px; }
@media (max-width:560px){
  .review-form{ grid-template-columns:1fr; }
  .review-form .field:nth-child(n), .review-form button[type=submit]{ grid-column:1; }
  .review-form .field:nth-child(2){ display:flex; align-items:center; justify-content:space-between; gap:12px; }
  .review-form .field:nth-child(2) label{ margin:0; }
}

/* Unit label shown inside the roof-area input (kept clear of the number spinner). */
.input-with-unit{ position:relative; }
.input-with-unit input{ padding-right:90px; }
.input-unit{ position:absolute; left:0; top:50%; transform:translateY(-50%); font-size:13px; font-weight:600; color:var(--ink-soft); pointer-events:none; }
.input-unit[hidden]{ display:none; }

/* Temporary "fetching your location" overlay. */
.loading-overlay{
  position:fixed; inset:0; z-index:60; display:flex; align-items:center; justify-content:center;
  padding:16px; background:rgba(1,27,96,.28); backdrop-filter:blur(2px);
}
.loading-overlay[hidden]{ display:none; }
.loading-card{
  display:flex; align-items:center; gap:12px; max-width:100%;
  background:#fff; color:var(--ink); font-weight:500; font-size:14.5px;
  padding:16px 22px; border-radius:var(--radius-md); box-shadow:var(--shadow-lg);
}
.loading-spinner{
  width:20px; height:20px; flex-shrink:0; border-radius:50%;
  border:3px solid var(--paper-2); border-top-color:var(--blue);
  animation:loadingSpin .8s linear infinite;
}
@keyframes loadingSpin{ to{ transform:rotate(360deg); } }
@media (prefers-reduced-motion: reduce){ .loading-spinner{ animation-duration:2s; } }