/* ======================================================================
   SOFT-UI / NEUMORPHISM — ambient paper, double shadows, indigo accent
   Tokens via designlang remix (Manrope)
   ====================================================================== */

:root {
  /* — Soft-UI palette — */
  --paper:        #eef0f7;
  --paper-2:      #e3e6ef;
  --paper-deep:   #d8dce8;
  --ink:          #1a1f2e;
  --ink-soft:     #6b7280;
  --ink-faint:    #9aa1ad;
  --accent:       #6366f1;
  --accent-hover: #5258e8;
  --accent-ink:   #ffffff;
  --rule:         rgba(26, 31, 46, 0.08);
  --warning:      #d97706;
  --error:        #dc2626;

  /* — Neumorphic shadows — outer (depth) + inner (light), softening into paper — */
  --shadow-lg-out: 12px 12px 32px rgba(160,170,200,0.45), -12px -12px 32px rgba(255,255,255,0.9);
  --shadow-md-out: 8px 8px 20px rgba(160,170,200,0.40), -8px -8px 20px rgba(255,255,255,0.85);
  --shadow-sm-out: 5px 5px 12px rgba(160,170,200,0.35), -5px -5px 12px rgba(255,255,255,0.85);
  --shadow-xs-out: 3px 3px 8px rgba(160,170,200,0.30),  -3px -3px 8px rgba(255,255,255,0.80);
  --shadow-inset:  inset 4px 4px 10px rgba(160,170,200,0.35), inset -4px -4px 10px rgba(255,255,255,0.85);
  --shadow-inset-deep: inset 6px 6px 14px rgba(160,170,200,0.45), inset -6px -6px 14px rgba(255,255,255,0.9);
  --shadow-accent: 6px 6px 14px rgba(99,102,241,0.35), -2px -2px 8px rgba(255,255,255,0.4);
  --shadow-accent-hover: 8px 10px 20px rgba(99,102,241,0.45), -3px -3px 8px rgba(255,255,255,0.5);

  --radius:    14px;
  --radius-lg: 24px;
  --radius-pill: 999px;
  --tap:       48px;
  --space:     12px;

  /* — Legacy aliases (JS-references) — */
  --bg:        var(--paper);
  --surface:   var(--paper);
  --surface-2: var(--paper-2);
  --text:      var(--ink);
  --text-dim:  var(--ink-soft);

  /* — Typography — */
  --display: 'Manrope', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
  --body:    'Manrope', -apple-system, BlinkMacSystemFont, system-ui, sans-serif;
}

* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--body);
  font-size: 15px;
  line-height: 1.55;
  letter-spacing: -0.005em;
  -webkit-font-smoothing: antialiased;
}

/* ====================================================================
   Brand bar
   ==================================================================== */
.brand-bar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 24px;
  background: var(--paper);
  border: none;
  border-bottom: 1px solid var(--rule);
  position: sticky;
  top: 0;
  z-index: 11;
}
.brand-bar-logo {
  font-family: var(--display);
  color: var(--ink);
  font-weight: 800;
  letter-spacing: -0.02em;
  font-size: 1.05rem;
  text-decoration: none;
  position: relative;
  padding-left: 26px;
}
.brand-bar-logo::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 18px; height: 18px;
  background: var(--accent);
  border-radius: 6px;
  box-shadow: var(--shadow-accent);
}
.brand-bar-back {
  font-family: var(--body);
  color: var(--ink-soft);
  font-size: 0.85rem;
  text-decoration: none;
  font-weight: 500;
  padding: 8px 14px;
  border-radius: var(--radius-pill);
  background: var(--paper);
  box-shadow: var(--shadow-xs-out);
  transition: box-shadow 160ms ease, color 160ms ease;
}
.brand-bar-back:hover { color: var(--accent); box-shadow: var(--shadow-sm-out); }

/* ====================================================================
   App grid
   ==================================================================== */
#app {
  min-height: 100vh;
  display: grid;
  grid-template-rows: auto auto 1fr auto;
}

/* ====================================================================
   Summary (sticky header)
   ==================================================================== */
.summary {
  position: sticky;
  top: var(--summary-top, 0px);
  z-index: 10;
  background: var(--paper);
  padding: 22px 24px 18px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: end;
  border-bottom: 1px solid var(--rule);
}
.summary-main { display: flex; gap: 28px; align-items: baseline; flex-wrap: wrap; }
.summary-watts {
  font-family: var(--display);
  font-size: clamp(2.6rem, 7vw, 4.4rem);
  font-weight: 800;
  color: var(--ink);
  letter-spacing: -0.04em;
  line-height: 0.95;
  font-variant-numeric: tabular-nums;
}
.summary-watts #total-watts {
  color: var(--accent);
}
.summary-amps {
  font-family: var(--display);
  font-size: clamp(1.4rem, 3vw, 2.1rem);
  font-weight: 700;
  color: var(--ink-soft);
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
}
.summary-amps .unit, .summary-watts .unit {
  font-size: 0.48em;
  color: var(--ink-faint);
  font-weight: 500;
  margin-left: 4px;
  letter-spacing: 0;
}

.summary-phases {
  grid-column: 1 / -1;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-top: 4px;
}
.phase-badge {
  background: var(--paper);
  border: none;
  border-radius: var(--radius-pill);
  padding: 6px 14px;
  font-family: var(--body);
  font-size: 0.78rem;
  font-weight: 600;
  font-variant-numeric: tabular-nums;
  color: var(--ink-soft);
  box-shadow: var(--shadow-inset);
}

.summary-controls {
  display: flex;
  gap: 8px;
  align-items: center;
}
.summary-controls select,
.summary-controls button {
  background: var(--paper);
  color: var(--ink);
  border: none;
  border-radius: var(--radius);
  padding: 10px 16px;
  font-family: var(--body);
  font-size: 0.92rem;
  font-weight: 600;
  min-height: var(--tap);
  cursor: pointer;
  box-shadow: var(--shadow-sm-out);
  transition: box-shadow 140ms ease, transform 100ms ease, color 140ms ease;
}
.summary-controls select:hover,
.summary-controls button:hover {
  box-shadow: var(--shadow-md-out);
  color: var(--accent);
}
.summary-controls select:active,
.summary-controls button:active {
  box-shadow: var(--shadow-inset);
  transform: translateY(1px);
}
.summary-controls button {
  width: var(--tap);
  padding: 0;
  font-size: 1.15rem;
  display: grid;
  place-items: center;
}
.summary-controls select:focus,
.summary-controls button:focus {
  outline: none;
  box-shadow: var(--shadow-sm-out), 0 0 0 3px rgba(99,102,241,0.25);
}

/* ====================================================================
   Search row
   ==================================================================== */
.search-row {
  padding: 14px 24px 0;
  background: var(--paper);
  position: sticky;
  top: calc(var(--brand-h, 0px) + var(--summary-h, 88px));
  z-index: 8;
}
#search-input {
  width: 100%;
  min-height: var(--tap);
  background: var(--paper);
  color: var(--ink);
  border: none;
  border-radius: var(--radius);
  padding: 12px 18px;
  font-family: var(--body);
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  box-shadow: var(--shadow-inset);
}
#search-input::placeholder { color: var(--ink-faint); font-weight: 400; }
#search-input:focus {
  outline: none;
  box-shadow: var(--shadow-inset), 0 0 0 3px rgba(99,102,241,0.25);
}

/* ====================================================================
   Catalog
   ==================================================================== */
.catalog { padding: 24px; padding-bottom: 260px; }

.cat-section { margin-bottom: 36px; }
.cat-section h2 {
  position: sticky;
  top: calc(var(--brand-h, 0px) + var(--summary-h, 88px) + 64px);
  background: var(--paper);
  margin: 0 0 18px;
  padding: 14px 0 10px;
  font-family: var(--display);
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--ink);
  z-index: 5;
}
.cat-section h2::after {
  content: "";
  display: block;
  margin-top: 8px;
  height: 4px;
  width: 56px;
  border-radius: 2px;
  background: var(--paper);
  box-shadow: var(--shadow-inset);
}

.cat-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(2, 1fr);
}
@media (min-width: 768px)  { .cat-grid { grid-template-columns: repeat(3, 1fr); gap: 20px; } }
@media (min-width: 1200px) { .cat-grid { grid-template-columns: repeat(4, 1fr); } }

/* ====================================================================
   Fixture cards (neumorphic!)
   ==================================================================== */
.card {
  background: var(--paper);
  border: none;
  border-radius: var(--radius-lg);
  padding: 18px;
  min-height: 118px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  position: relative;
  cursor: pointer;
  user-select: none;
  box-shadow: var(--shadow-sm-out);
  transition: box-shadow 180ms ease, transform 140ms ease, color 140ms ease;
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-md-out);
}
.card:active {
  transform: translateY(0);
  box-shadow: var(--shadow-inset);
}
.card.dim {
  /* default look, just a tiny opacity tone-down for visual hierarchy */
  opacity: 1;
}
.card:not(.dim) {
  background: var(--paper);
  box-shadow: var(--shadow-inset-deep);
  transform: translateY(0);
}
.card:not(.dim) .card-model { color: var(--accent); }
.card:not(.dim):hover { box-shadow: var(--shadow-inset-deep); transform: none; }

.card-brand {
  font-family: var(--body);
  font-size: 0.7rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-weight: 700;
}
.card-model {
  font-family: var(--display);
  font-size: 1.04rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  line-height: 1.2;
  margin: 6px 0 12px;
  color: var(--ink);
}
.card-watts {
  font-family: var(--display);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--ink-soft);
  font-variant-numeric: tabular-nums;
  letter-spacing: -0.01em;
}

.card-count {
  position: absolute;
  top: 12px; right: 12px;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--display);
  font-weight: 800;
  font-size: 0.92rem;
  width: 34px; height: 34px;
  border-radius: 50%;
  border: none;
  display: grid; place-items: center;
  font-variant-numeric: tabular-nums;
  line-height: 1;
  box-shadow: var(--shadow-accent);
}
.card-minus {
  position: absolute;
  top: 12px; left: 12px;
  background: var(--paper);
  color: var(--ink);
  border: none;
  width: 34px; height: 34px;
  border-radius: 50%;
  font-family: var(--display);
  font-size: 1.3rem;
  font-weight: 700;
  cursor: pointer;
  display: grid; place-items: center;
  line-height: 1;
  box-shadow: var(--shadow-xs-out);
  transition: box-shadow 140ms ease;
}
.card-minus:hover { box-shadow: var(--shadow-sm-out); color: var(--accent); }
.card-minus:active { box-shadow: var(--shadow-inset); transform: translateY(1px); }

/* Active-card layout pad so badges don't overlap brand/model */
.card:not(.dim) > div:first-of-type {
  padding-top: 30px;
  padding-left: 8px;
  padding-right: 36px;
}

/* ====================================================================
   Recommendations footer
   ==================================================================== */
.recs {
  position: sticky;
  bottom: 0;
  z-index: 9;
  background: var(--paper);
  padding: 20px 24px 24px;
  border-top: 1px solid var(--rule);
  max-height: 50vh;
  overflow-y: auto;
  box-shadow: 0 -8px 24px rgba(160,170,200,0.25);
}
.recs h3 {
  margin: 0 0 10px;
  font-family: var(--display);
  font-size: 0.92rem;
  font-weight: 800;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.recs ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.recs li {
  padding: 4px 0 4px 22px;
  font-family: var(--body);
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--ink);
  position: relative;
}
.recs li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 9px;
  width: 8px; height: 8px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: var(--shadow-accent);
}
.recs .warning { color: var(--warning); }
.recs .warning::before { background: var(--warning); box-shadow: 3px 3px 6px rgba(217,119,6,0.35); }
.recs .error { color: var(--error); font-weight: 700; }
.recs .error::before { background: var(--error); box-shadow: 3px 3px 6px rgba(220,38,38,0.35); }

/* ====================================================================
   CTA button
   ==================================================================== */
.cta-btn {
  display: block;
  margin: 18px auto 4px;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--display);
  font-weight: 700;
  font-size: 1.05rem;
  text-align: center;
  text-decoration: none;
  letter-spacing: -0.005em;
  padding: 16px 28px;
  border: none;
  border-radius: var(--radius);
  box-shadow: var(--shadow-accent);
  min-height: 56px;
  line-height: 28px;
  cursor: pointer;
  transition: transform 140ms ease, box-shadow 140ms ease, background 140ms ease;
  -webkit-tap-highlight-color: transparent;
  max-width: 480px;
}
.cta-btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-accent-hover);
  background: var(--accent-hover);
}
.cta-btn:active {
  transform: translateY(1px);
  box-shadow: inset 4px 4px 10px rgba(0,0,0,0.18), inset -4px -4px 10px rgba(255,255,255,0.08);
}
.cta-btn[hidden] { display: none; }

/* ====================================================================
   Sheet / modal
   ==================================================================== */
.sheet {
  position: fixed;
  inset: 0;
  background: rgba(26, 31, 46, 0.4);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  display: grid;
  align-items: end;
  z-index: 100;
}
.sheet.hidden { display: none; }
.sheet-panel {
  background: var(--paper);
  border: none;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
  max-height: 82vh;
  overflow-y: auto;
  padding: 24px;
  box-shadow: 0 -12px 40px rgba(26,31,46,0.18);
}
.sheet-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-bottom: 16px;
  margin-bottom: 18px;
  border-bottom: 1px solid var(--rule);
}
.sheet-head h2 {
  margin: 0;
  font-family: var(--display);
  font-size: 1.42rem;
  font-weight: 800;
  letter-spacing: -0.025em;
  color: var(--ink);
}
#sheet-close {
  background: var(--paper);
  border: none;
  color: var(--ink-soft);
  font-size: 1.3rem;
  line-height: 1;
  cursor: pointer;
  padding: 0;
  width: 38px; height: 38px;
  border-radius: 50%;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-xs-out);
}
#sheet-close:hover { color: var(--accent); box-shadow: var(--shadow-sm-out); }
#sheet-close:active { box-shadow: var(--shadow-inset); }

.setup-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--rule);
  gap: 12px;
}
.setup-row:last-child { border-bottom: none; }
.setup-name {
  flex: 1;
  font-family: var(--display);
  font-weight: 700;
  letter-spacing: -0.015em;
  color: var(--ink);
}
.setup-meta {
  font-family: var(--body);
  color: var(--ink-faint);
  font-size: 0.82rem;
  font-weight: 500;
}
.setup-actions { display: flex; gap: 8px; }
.setup-actions button {
  background: var(--paper);
  color: var(--ink);
  border: none;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-family: var(--body);
  font-weight: 600;
  font-size: 0.85rem;
  min-height: 40px;
  cursor: pointer;
  box-shadow: var(--shadow-xs-out);
  transition: box-shadow 140ms ease, color 140ms ease;
}
.setup-actions button:hover { box-shadow: var(--shadow-sm-out); color: var(--accent); }
.setup-actions button:active { box-shadow: var(--shadow-inset); }
.setup-actions button.danger { color: var(--error); }
.setup-actions button.danger:hover { color: var(--error); }

/* ====================================================================
   Sheet form
   ==================================================================== */
.sheet-label {
  display: block;
  font-family: var(--body);
  font-size: 0.82rem;
  color: var(--ink-soft);
  font-weight: 600;
  margin: 14px 0 8px;
}
.sheet-input {
  width: 100%;
  min-height: var(--tap);
  background: var(--paper);
  color: var(--ink);
  border: none;
  border-radius: var(--radius);
  padding: 12px 16px;
  font-family: var(--body);
  font-size: 0.98rem;
  font-weight: 500;
  letter-spacing: -0.005em;
  margin-bottom: 10px;
  box-shadow: var(--shadow-inset);
}
.sheet-input:focus {
  outline: none;
  box-shadow: var(--shadow-inset), 0 0 0 3px rgba(99,102,241,0.25);
}
.sheet-message {
  font-family: var(--body);
  font-size: 0.94rem;
  line-height: 1.6;
  color: var(--ink);
  margin: 14px 0 18px;
  font-weight: 500;
}
.sheet-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid var(--rule);
}
.sheet-btn {
  background: var(--paper);
  color: var(--ink);
  border: none;
  border-radius: var(--radius);
  padding: 12px 22px;
  font-family: var(--display);
  font-weight: 600;
  font-size: 0.95rem;
  letter-spacing: -0.005em;
  min-height: var(--tap);
  cursor: pointer;
  box-shadow: var(--shadow-sm-out);
  transition: box-shadow 140ms ease, transform 100ms ease, color 140ms ease, background 140ms ease;
}
.sheet-btn:hover {
  box-shadow: var(--shadow-md-out);
  color: var(--accent);
}
.sheet-btn:active { box-shadow: var(--shadow-inset); transform: translateY(1px); }
.sheet-btn-primary {
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  box-shadow: var(--shadow-accent);
}
.sheet-btn-primary:hover {
  background: var(--accent-hover);
  color: var(--accent-ink);
  box-shadow: var(--shadow-accent-hover);
}