/* ============================================================
   All Season Air + Energy — Commissioning App
   styles.css · Premium Dark Theme · v4
   ============================================================ */

/* --- Tokens ------------------------------------------------- */
:root {
  --bg:        #080a0f;
  --bg2:       #0d1117;
  --bg3:       #131920;
  --muted:     #64748b;
  --muted2:    #94a3b8;
  --text:      #f1f5f9;
  --text2:     #e2e8f0;
  --line:      rgba(255,255,255,.07);
  --line2:     rgba(255,255,255,.12);
  --accent:    #10b981;
  --accent2:   #0ea5e9;
  --danger:    #ef4444;
  --amber:     #f59e0b;
  --tap:       48px;
  --r:         16px;
  --r-sm:      12px;
  --r-lg:      20px;
  --r-xl:      24px;
  color-scheme: dark light;
}

/* --- Light mode -------------------------------------------- */
@media (prefers-color-scheme: light) {
  :root {
    --bg:     #f0f4f8;
    --bg2:    #ffffff;
    --bg3:    #f8fafc;
    --muted:  #64748b;
    --muted2: #475569;
    --text:   #0f172a;
    --text2:  #1e293b;
    --line:   rgba(0,0,0,.08);
    --line2:  rgba(0,0,0,.14);
    --accent: #059669;
    --accent2:#0284c7;
    --danger: #dc2626;
    --amber:  #d97706;
  }
}

/* --- Reset -------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
html, body { height: 100%; }
html { -webkit-text-size-adjust: 100%; }
body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-overflow-scrolling: touch;
}

/* Ambient glow effects — dark mode only */
body::before {
  content: '';
  position: fixed;
  top: -200px; left: -100px;
  width: 500px; height: 500px;
  background: radial-gradient(circle, rgba(14,165,233,.06) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}
body::after {
  content: '';
  position: fixed;
  bottom: -150px; right: -100px;
  width: 400px; height: 400px;
  background: radial-gradient(circle, rgba(16,185,129,.05) 0%, transparent 65%);
  pointer-events: none;
  z-index: 0;
}
@media (prefers-color-scheme: light) {
  body::before, body::after { display: none; }
}

/* --- Layout ------------------------------------------------- */
.app {
  max-width: 980px;
  margin: 0 auto;
  padding: 12px 14px 100px;
  position: relative;
  z-index: 1;
}

/* --- Header ------------------------------------------------- */
.header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 12px 4px 20px;
  gap: 8px;
}
.brand { display: flex; gap: 10px; align-items: center; }
.logo {
  width: 44px; height: 44px;
  object-fit: contain;
  border-radius: 13px;
  background: #fff;
  padding: 5px;
  flex-shrink: 0;
  box-shadow: 0 0 0 1px rgba(255,255,255,.08);
}
.brandName  { font-weight: 800; font-size: 16px; line-height: 1.2; color: var(--text); }
.brandSub   { color: var(--muted); font-size: 11px; margin-top: 2px; }
.pill {
  padding: 5px 11px;
  border-radius: 999px;
  font-size: 11px;
  font-weight: 600;
  color: var(--accent);
  background: rgba(16,185,129,.1);
  border: 1px solid rgba(16,185,129,.2);
  white-space: nowrap;
  flex-shrink: 0;
}
@media (prefers-color-scheme: light) {
  .pill { color: var(--muted); background: var(--bg3); border-color: var(--line2); }
}

/* --- Cards -------------------------------------------------- */
.card {
  background: var(--bg2);
  border: 1px solid var(--line);
  border-radius: var(--r-xl);
  padding: 16px;
  box-shadow: 0 1px 3px rgba(0,0,0,.3);
  position: relative;
  overflow: hidden;
}
@media (prefers-color-scheme: light) {
  .card { box-shadow: 0 2px 12px rgba(0,0,0,.06); border-color: var(--line); }
}
.card.disabled { opacity: .4; pointer-events: none; display: none; }

/* Subtle card shimmer top edge — dark only */
.card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,.08), transparent);
}
@media (prefers-color-scheme: light) { .card::before { display: none; } }

/* --- Typography --------------------------------------------- */
h1, h2, h3, h4 { margin: 0 0 8px; font-weight: 800; color: var(--text); }
h1 { font-size: 22px; }
h2 { font-size: 19px; }
h3 { font-size: 16px; margin-top: 4px; }
h4 { font-size: 15px; color: var(--accent); }
.muted  { color: var(--muted); }
.tiny   { font-size: 12px; }

/* --- Section labels ----------------------------------------- */
.section-title, .home-section-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: .07em;
  text-transform: uppercase;
  color: var(--muted);
  margin: 0 2px 10px;
}

/* --- Labels & Inputs --------------------------------------- */
.label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  color: var(--muted2);
  margin: 10px 0 5px;
}
input, select, textarea {
  width: 100%;
  background: var(--bg3);
  color: var(--text);
  border: 1px solid var(--line2);
  border-radius: var(--r-sm);
  padding: 13px 14px;
  min-height: var(--tap);
  transition: border-color .15s, background .15s;
  -webkit-appearance: none;
  appearance: none;
  font-size: 16px;
}
input:focus, select:focus, textarea:focus {
  outline: none;
  border-color: var(--accent2);
  background: var(--bg2);
}
@media (prefers-color-scheme: light) {
  input, select, textarea { background: #f8fafc; border-color: #cbd5e1; }
  input:focus, select:focus, textarea:focus { background: #fff; border-color: var(--accent2); }
}
select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2.5'%3E%3Cpolyline points='6 9 12 15 18 9'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 36px;
}
textarea { resize: vertical; min-height: 80px; }
input[type="file"] {
  padding: 12px;
  background: rgba(255,255,255,.03);
  border-style: dashed;
  border-color: var(--line2);
  cursor: pointer;
  min-height: 52px;
}
@media (prefers-color-scheme: light) {
  input[type="file"] { background: #f8fafc; }
}

/* --- Buttons ----------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  border: 1px solid var(--line2);
  background: var(--bg3);
  color: var(--text2);
  padding: 13px 16px;
  min-height: var(--tap);
  border-radius: var(--r);
  cursor: pointer;
  font-weight: 700;
  white-space: nowrap;
  font-size: 15px;
  transition: opacity .15s, transform .08s, background .15s;
  -webkit-tap-highlight-color: transparent;
}
.btn:active { transform: scale(.97); opacity: .85; }
.btn.primary {
  background: linear-gradient(145deg, rgba(16,185,129,.2), rgba(16,185,129,.08));
  border-color: rgba(16,185,129,.3);
  color: #6ee7b7;
}
.btn.ghost  { background: transparent; border-color: var(--line); }
.btn.danger { border-color: rgba(239,68,68,.3); color: var(--danger); }
.btn.wide   { width: 100%; }
.btn.scan {
  background: linear-gradient(135deg, rgba(14,165,233,.18), rgba(16,185,129,.10));
  border-color: rgba(14,165,233,.3);
  color: #7dd3fc;
  width: 100%;
  padding: 14px 16px;
  min-height: 52px;
  font-size: 15px;
}
@media (prefers-color-scheme: light) {
  .btn { background: #fff; border-color: #cbd5e1; color: var(--text); }
  .btn.primary { background: linear-gradient(145deg, rgba(5,150,105,.15), rgba(5,150,105,.06)); border-color: rgba(5,150,105,.35); color: #065f46; }
  .btn.scan { background: linear-gradient(135deg, rgba(2,132,199,.12), rgba(5,150,105,.08)); border-color: rgba(2,132,199,.3); color: #0369a1; }
  .btn.ghost { background: transparent; }
}

/* --- Report type cards (home screen) ----------------------- */
.report-cards {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 4px;
}
.report-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 18px 8px;
  border-radius: var(--r-xl);
  border: 1px solid rgba(16,185,129,.15);
  background: linear-gradient(145deg, rgba(16,185,129,.11), rgba(16,185,129,.03));
  color: var(--text);
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
  transition: transform .1s, opacity .1s;
  min-height: 108px;
  position: relative;
  overflow: hidden;
}
.report-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(16,185,129,.25), transparent);
}
.report-card:active { transform: scale(.95); opacity: .8; }
.report-card--blue {
  border-color: rgba(14,165,233,.18);
  background: linear-gradient(145deg, rgba(14,165,233,.12), rgba(14,165,233,.03));
}
.report-card--blue::before { background: linear-gradient(90deg, transparent, rgba(14,165,233,.3), transparent); }
.report-card--red {
  border-color: rgba(239,68,68,.18);
  background: linear-gradient(145deg, rgba(239,68,68,.12), rgba(239,68,68,.03));
}
.report-card--red::before { background: linear-gradient(90deg, transparent, rgba(239,68,68,.3), transparent); }
.report-card-icon  { font-size: 26px; line-height: 1; }
.report-card-title { font-size: 13px; font-weight: 800; text-align: center; color: var(--text2); }
.report-card-sub   { font-size: 10px; color: var(--muted); text-align: center; line-height: 1.3; }

@media (prefers-color-scheme: light) {
  .report-card { background: linear-gradient(145deg, rgba(5,150,105,.08), rgba(5,150,105,.02)); border-color: rgba(5,150,105,.2); }
  .report-card::before { display: none; }
  .report-card--blue { background: linear-gradient(145deg, rgba(2,132,199,.08), rgba(2,132,199,.02)); border-color: rgba(2,132,199,.2); }
  .report-card--red  { background: linear-gradient(145deg, rgba(220,38,38,.08), rgba(220,38,38,.02)); border-color: rgba(220,38,38,.18); }
}
@media (max-width: 380px) {
  .report-card { padding: 14px 6px; min-height: 90px; }
  .report-card-icon { font-size: 22px; }
  .report-card-title { font-size: 11px; }
  .report-card-sub { font-size: 9px; }
}

/* --- Layout helpers ---------------------------------------- */
.row   { display: flex; gap: 10px; align-items: center; }
.grow  { flex: 1 1 0; min-width: 0; }
.stack { display: flex; flex-direction: column; gap: 10px; }
.grid  { display: grid; gap: 14px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid2 { display: grid; gap: 12px; grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid2 .full { grid-column: 1 / -1; }
@media (max-width: 640px) { .grid, .grid2 { grid-template-columns: 1fr; } }

/* --- Divider ----------------------------------------------- */
.divider { height: 1px; background: var(--line); margin: 18px 0; }

/* --- Search results & items -------------------------------- */
.searchResults { margin-top: 10px; }
.list { margin-top: 10px; display: flex; flex-direction: column; gap: 8px; }
.item {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 13px 14px;
  background: var(--bg3);
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 10px;
  transition: border-color .15s;
}
.item:active { border-color: var(--line2); }
.itemTitle { font-weight: 800; font-size: 14px; color: var(--text2); }
.itemSub   { color: var(--muted); font-size: 12px; margin-top: 3px; }
.item .btn { min-width: 64px; font-size: 13px; padding: 9px 14px; }
@media (max-width: 640px) {
  .item { flex-direction: column; align-items: flex-start; }
  .item .row { width: 100%; }
  .item .btn { flex: 1; }
}

/* --- Form card --------------------------------------------- */
.formHeader {
  display: flex;
  gap: 10px;
  align-items: center;
  flex-wrap: wrap;
  margin-bottom: 16px;
}
.formHeader h2 { flex: 1 1 auto; margin: 0; font-size: 18px; }

/* --- Photo previews ---------------------------------------- */
.preview img {
  max-width: 100%;
  border-radius: var(--r-sm);
  margin-top: 8px;
  border: 1px solid var(--line);
  display: block;
}
.photoGrid {
  display: grid;
  gap: 8px;
  grid-template-columns: repeat(3, minmax(0,1fr));
  margin-top: 10px;
}
.photoGrid img {
  width: 100%;
  height: 100px;
  object-fit: cover;
  border-radius: var(--r-sm);
  border: 1px solid var(--line);
}
@media (max-width: 640px) {
  .photoGrid { grid-template-columns: repeat(2, minmax(0,1fr)); }
  .photoGrid img { height: 90px; }
}

/* --- Signature --------------------------------------------- */
.sigBox {
  border: 1px solid var(--line);
  border-radius: var(--r);
  padding: 10px;
  background: var(--bg3);
}
canvas {
  width: 100%;
  height: auto;
  display: block;
  border-radius: var(--r-sm);
  border: 1px dashed rgba(255,255,255,.12);
  background: var(--bg);
  touch-action: none;
}
@media (prefers-color-scheme: light) {
  canvas { background: #f8fafc; border-color: #cbd5e1; }
}

/* --- Chips (radio buttons) --------------------------------- */
.chip {
  display: flex;
  gap: 8px;
  align-items: center;
  border: 1px solid var(--line2);
  border-radius: 999px;
  padding: 11px 16px;
  background: var(--bg3);
  min-height: var(--tap);
  cursor: pointer;
  flex: 1 1 auto;
  font-size: 14px;
  color: var(--text2);
}
.chip input[type="radio"] { accent-color: var(--accent); width: 17px; height: 17px; flex-shrink: 0; }
@media (max-width: 640px) { .row .chip { flex: 1 1 100%; } }

/* --- Address suggest --------------------------------------- */
.suggestWrap { position: relative; }
.suggest {
  position: absolute;
  left: 0; right: 0;
  top: calc(var(--tap) + 4px);
  z-index: 200;
  background: var(--bg2);
  border: 1px solid var(--line2);
  border-radius: var(--r-sm);
  overflow: hidden;
  display: none;
  max-height: 220px;
  overflow-y: auto;
  box-shadow: 0 8px 30px rgba(0,0,0,.4);
}
.suggest .opt {
  padding: 13px 14px;
  border-bottom: 1px solid var(--line);
  cursor: pointer;
  font-size: 14px;
  color: var(--text2);
}
.suggest .opt:active { background: rgba(255,255,255,.04); }

/* --- Sticky save bar --------------------------------------- */
#stickyBar {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 500;
  background: rgba(8,10,15,.94);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top: 1px solid var(--line);
  padding: 10px 14px;
  padding-bottom: calc(10px + env(safe-area-inset-bottom));
  display: none;
}
@media (prefers-color-scheme: light) {
  #stickyBar { background: rgba(240,244,248,.95); border-color: #e2e8f0; }
}
#stickyBar .row { max-width: 980px; margin: 0 auto; gap: 10px; }
#stickyBar .btn { flex: 1; min-height: 50px; font-size: 15px; }

/* --- OCR busy overlay -------------------------------------- */
.scanBusy { opacity: .6; pointer-events: none; }

/* --- OCR Bottom Sheet -------------------------------------- */
.sheet-backdrop {
  position: fixed; inset: 0;
  background: rgba(0,0,0,.6);
  z-index: 9998;
  display: none;
}
.sheet-backdrop.show { display: block; }
.sheet {
  position: fixed;
  left: 0; right: 0; bottom: 0;
  z-index: 9999;
  display: none;
  background: #0d1117 !important;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-top-left-radius: 24px;
  border-top-right-radius: 24px;
  border: 1px solid rgba(255,255,255,.1) !important;
  box-shadow: 0 -20px 60px rgba(0,0,0,.6);
  max-height: 82vh;
  overflow: hidden;
  padding-bottom: calc(env(safe-area-inset-bottom) + 6px);
}
@media (prefers-color-scheme: light) {
  .sheet { background: #fff !important; border-color: #e2e8f0 !important; box-shadow: 0 -8px 40px rgba(0,0,0,.12); }
}
.sheet.show { display: block; }
.sheet-handle {
  width: 40px; height: 4px;
  background: rgba(255,255,255,.2);
  border-radius: 2px;
  margin: 10px auto 4px;
}
@media (prefers-color-scheme: light) { .sheet-handle { background: #cbd5e1; } }
.sheet-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  padding: 10px 16px;
  border-bottom: 1px solid var(--line);
  gap: 12px;
}
.sheet-title { font-size: 17px; font-weight: 800; color: var(--text) !important; margin: 0; }
.sheet-sub   { font-size: 12px; color: var(--muted); margin-top: 3px; }
.sheet-close {
  border: none;
  background: rgba(255,255,255,.08);
  color: var(--text);
  width: 34px; height: 34px;
  border-radius: 10px;
  font-size: 20px;
  line-height: 1;
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
  cursor: pointer;
}
@media (prefers-color-scheme: light) { .sheet-close { background: #f1f5f9; color: #1e293b; } }
.sheet-body {
  padding: 12px 16px;
  overflow: auto;
  max-height: calc(82vh - 130px);
}
.sheet-section { margin: 10px 0 16px; }
.sheet-label   { display: block; font-size: 14px; font-weight: 700; color: var(--text) !important; margin: 0 0 8px; }
.sheet-hint    { font-size: 12px; opacity: .7; color: var(--muted); margin: -4px 0 10px; }
.sheet-select,
.sheet-input   {
  width: 100%;
  height: 48px;
  border-radius: 14px;
  border: 1px solid rgba(255,255,255,.12) !important;
  background: rgba(255,255,255,.06) !important;
  color: var(--text) !important;
  padding: 0 14px;
  font-size: 16px;
  outline: none;
}
@media (prefers-color-scheme: light) {
  .sheet-select, .sheet-input { background: #f8fafc !important; border-color: #cbd5e1 !important; color: #0f172a !important; }
}
.sheet-select  { padding-right: 40px; }
.sheet-select option { color: #111; }
.sheet-input::placeholder { color: var(--muted); }
.sheet-actions {
  display: flex;
  gap: 10px;
  padding: 12px 16px;
  border-top: 1px solid var(--line);
  background: rgba(255,255,255,.03);
}
@media (prefers-color-scheme: light) { .sheet-actions { background: #f8fafc; } }
.sheet-actions .btn { flex: 1; min-height: 48px; }
.sheet-actions .btn.secondary { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.12); color: var(--text); }
.sheet-actions .btn.primary { background: #fff; color: #0f172a; border-color: rgba(255,255,255,.2); }
@media (prefers-color-scheme: light) {
  .sheet-actions .btn.secondary { background: #f1f5f9; border-color: #cbd5e1; color: #1e293b; }
  .sheet-actions .btn.primary { background: #0f172a; color: #fff; }
}
.sheet-editbtn {
  width: 100%;
  margin-top: 10px;
  min-height: 46px;
  border-radius: var(--r);
  border: 1px solid var(--line2);
  background: rgba(255,255,255,.06);
  color: var(--text);
  font-weight: 700;
  cursor: pointer;
  font-size: 15px;
}
.sheet-editbtn:active { transform: scale(.98); }
@media (prefers-color-scheme: light) { .sheet-editbtn { background: #f1f5f9; border-color: #cbd5e1; color: #1e293b; } }

/* --- Indoor unit cards ------------------------------------- */
#indoorsWrap .card { margin-top: 12px; border-color: rgba(14,165,233,.15); }
#indoorsWrap h4 { color: var(--accent2); font-size: 15px; margin-bottom: 12px; }

/* --- Drafts card ------------------------------------------- */
#draftsCard { margin-top: 12px; }
#draftStatusBar {
  padding: 8px 12px;
  border: 1px solid var(--line);
  border-radius: var(--r-sm);
  background: rgba(255,255,255,.03);
  font-size: 12px;
  color: var(--muted);
  margin-top: 8px;
  display: none;
}
#draftsList .item { flex-direction: column; gap: 8px; }
#draftsList .row  { flex-wrap: wrap; gap: 8px; }
#draftsList .row .btn { flex: 1 1 auto; min-width: 80px; }

/* --- Login card -------------------------------------------- */
#loginCard {
  max-width: 400px;
  margin: 40px auto;
  background: var(--bg2);
}
#loginCard .btn.primary { width: 100%; margin-top: 6px; min-height: 54px; font-size: 17px; }

/* --- Save toast -------------------------------------------- */
.saveToast {
  position: fixed;
  left: 50%;
  bottom: calc(70px + env(safe-area-inset-bottom));
  transform: translateX(-50%);
  background: rgba(13,17,23,.97);
  border: 1px solid rgba(16,185,129,.3);
  color: #6ee7b7;
  border-radius: 999px;
  padding: 11px 22px;
  font-size: 14px;
  font-weight: 700;
  opacity: 0;
  transition: opacity .2s;
  z-index: 9999;
  white-space: nowrap;
  pointer-events: none;
}
.saveToast.show { opacity: 1; }
@media (prefers-color-scheme: light) {
  .saveToast { background: rgba(255,255,255,.97); border-color: rgba(5,150,105,.35); color: #065f46; box-shadow: 0 4px 20px rgba(0,0,0,.1); }
}

/* --- Misc -------------------------------------------------- */
.footer {
  margin-top: 14px;
  color: var(--muted);
  font-size: 11px;
  display: flex;
  justify-content: space-between;
  gap: 10px;
  flex-wrap: wrap;
  padding: 0 4px;
}
.buildTag {
  position: fixed;
  left: 10px; bottom: 10px;
  font-size: 11px;
  opacity: .35;
  z-index: 9999;
  pointer-events: none;
  color: var(--muted);
}

/* =========================================================
   MOBILE  ≤ 640 px
   ========================================================= */
@media (max-width: 640px) {
  .app { padding: 10px 12px 110px; }
  .brandName { font-size: 14px; }
  .brandSub  { font-size: 10px; }
  .logo      { width: 40px; height: 40px; }
  .btn { min-height: 52px; padding: 14px 16px; }
  .formHeader { flex-wrap: wrap; }
  .item { flex-direction: column; align-items: flex-start; }
  .item .row { width: 100%; }
  .item .btn  { flex: 1; }
  .chip { font-size: 14px; padding: 13px 14px; }
  #stickyBar .btn { min-height: 54px; font-size: 15px; }
  #indoorCountSection .row { flex-wrap: wrap; }
  #buildIndoorsBtn { width: 100%; }
  .footer { display: none; }
  .sheet { max-height: 90vh; }
}

/* =========================================================
   VERY SMALL  ≤ 380 px
   ========================================================= */
@media (max-width: 380px) {
  .app { padding: 8px 10px 110px; }
  h1   { font-size: 19px; }
  h2   { font-size: 17px; }
  .btn { font-size: 14px; }
  .pill { display: none; }
}