@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:wght@400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:        #f4f2ed;
  --surface:   #ffffff;
  --surface2:  #f9f8f5;
  --surface3:  #f0ede6;
  --border:    #e2ddd6;
  --border2:   #ccc8bf;
  --text:      #1a1917;
  --muted:     #6b6760;
  --hint:      #a8a49e;
  --accent:    #d4620a;
  --accent-lt: #fdf1e8;
  --green:     #1a7a4a;
  --green-lt:  #e8f7ef;
  --mat:       #7c3aed;
  --mat-lt:    #f0ebff;
  --labor:     #0369a1;
  --labor-lt:  #e0f2fe;
  --machine:   #b45309;
  --machine-lt:#fef3c7;
  --extra:     #be123c;
  --extra-lt:  #ffe4e6;
  --custom:    #d4620a;
  --custom-lt: #fdf1e8;
  --radius:    8px;
  --radius-lg: 12px;
  --radius-xl: 16px;
  --shadow:    0 1px 3px rgba(0,0,0,0.06), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-lg: 0 2px 8px rgba(0,0,0,0.08), 0 8px 24px rgba(0,0,0,0.06);
}

html {
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 14px;
  line-height: 1.5;
  color: var(--text);
  background: var(--bg);
}

body { min-height: 100vh; }

/* ── HEADER ─────────────────────────────────────────────── */
.header {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0 2rem;
  height: 58px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  position: sticky;
  top: 0;
  z-index: 20;
  box-shadow: 0 1px 0 var(--border), 0 2px 8px rgba(0,0,0,0.04);
}

.header-left { display: flex; align-items: center; gap: 14px; }

.logo {
  font-size: 17px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--text);
}
.logo em { color: var(--accent); font-style: normal; }

.tagline {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--hint);
  letter-spacing: 0.04em;
  padding: 3px 8px;
  background: var(--surface3);
  border-radius: 4px;
  border: 1px solid var(--border);
}

.header-right { display: flex; align-items: center; gap: 10px; }

/* Currency toggle */
.currency-toggle {
  display: flex;
  border: 1px solid var(--border2);
  border-radius: 7px;
  overflow: hidden;
  background: var(--surface2);
}
.currency-toggle button {
  padding: 5px 14px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  font-weight: 500;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--muted);
  transition: all 0.15s;
}
.currency-toggle button.active {
  background: var(--accent);
  color: #fff;
}

/* Print button */
.print-btn {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 6px 14px;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px;
  font-weight: 600;
  border: 1px solid var(--border2);
  border-radius: 7px;
  background: var(--surface);
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
}
.print-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-lt); }
.print-btn svg { width: 13px; height: 13px; flex-shrink: 0; }

/* ── MAIN LAYOUT ────────────────────────────────────────── */
.main {
  display: grid;
  grid-template-columns: 1fr 360px;
  min-height: calc(100vh - 58px);
}

/* ── LEFT: INPUTS ───────────────────────────────────────── */
.inputs-panel {
  padding: 1.75rem 2rem;
  overflow-y: auto;
}

.section {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  margin-bottom: 1rem;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.section-header {
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--surface2);
}
.section-pill {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 20px;
}
.pill-mat    { background: var(--mat-lt);     color: var(--mat);     }
.pill-labor  { background: var(--labor-lt);   color: var(--labor);   }
.pill-machine{ background: var(--machine-lt); color: var(--machine); }
.pill-extra  { background: var(--extra-lt);   color: var(--extra);   }
.pill-custom { background: var(--custom-lt);  color: var(--custom);  }

.section-subtotal {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  background: var(--surface3);
  padding: 3px 10px;
  border-radius: 5px;
  border: 1px solid var(--border);
  min-width: 70px;
  text-align: right;
}

.section-body { padding: 12px 16px; display: flex; flex-direction: column; gap: 0; }

/* ── FIELD ROW ──────────────────────────────────────────── */
.field {
  display: grid;
  grid-template-columns: 160px 1fr 100px;
  gap: 10px;
  align-items: center;
  padding: 8px 0;
  border-bottom: 1px solid var(--border);
}
.field:last-child { border-bottom: none; }

.field-label {
  font-size: 12px;
  font-weight: 500;
  color: var(--muted);
  line-height: 1.3;
}

/* Slider */
.slider-wrap { display: flex; align-items: center; gap: 6px; }
input[type="range"] {
  flex: 1;
  -webkit-appearance: none;
  height: 4px;
  background: var(--surface3);
  border-radius: 2px;
  outline: none;
  cursor: pointer;
  border: 1px solid var(--border);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 15px;
  height: 15px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(212,98,10,0.35);
  cursor: pointer;
  transition: transform 0.1s;
}
input[type="range"]::-webkit-slider-thumb:hover { transform: scale(1.15); }
input[type="range"]::-moz-range-thumb {
  width: 15px; height: 15px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid #fff;
  box-shadow: 0 1px 4px rgba(212,98,10,0.35);
  cursor: pointer;
}

/* Number input + unit */
.num-wrap {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--border2);
  border-radius: var(--radius);
  overflow: hidden;
  background: var(--surface);
  transition: border-color 0.15s;
}
.num-wrap:focus-within { border-color: var(--accent); }

.num-input {
  width: 62px;
  border: none;
  background: transparent;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  padding: 5px 6px 5px 8px;
  outline: none;
  text-align: right;
  -moz-appearance: textfield;
}
.num-input::-webkit-outer-spin-button,
.num-input::-webkit-inner-spin-button { -webkit-appearance: none; }

.unit-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--hint);
  background: var(--surface3);
  border-left: 1px solid var(--border);
  padding: 5px 7px;
  white-space: nowrap;
  min-width: 28px;
  text-align: center;
}

/* ── CUSTOM COSTS ───────────────────────────────────────── */
.custom-list { display: flex; flex-direction: column; gap: 6px; }

.custom-item {
  display: grid;
  grid-template-columns: 1fr 90px 95px 28px;
  gap: 6px;
  align-items: center;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 8px 10px;
}
.custom-item input[type="text"] {
  border: none;
  background: transparent;
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px;
  color: var(--text);
  outline: none;
  width: 100%;
}
.custom-item input[type="text"]::placeholder { color: var(--hint); }
.custom-item input[type="number"] {
  width: 100%;
  border: 1px solid var(--border2);
  border-radius: 5px;
  background: var(--surface);
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
  padding: 4px 8px;
  text-align: right;
  outline: none;
  -moz-appearance: textfield;
}
.custom-item input[type="number"]::-webkit-outer-spin-button,
.custom-item input[type="number"]::-webkit-inner-spin-button { -webkit-appearance: none; }
.custom-item input[type="number"]:focus { border-color: var(--accent); }
.custom-item select {
  width: 100%;
  border: 1px solid var(--border2);
  border-radius: 5px;
  background: var(--surface);
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--muted);
  padding: 4px 6px;
  outline: none;
  cursor: pointer;
}
.custom-item select:focus { border-color: var(--accent); }
.remove-btn {
  background: none;
  border: none;
  color: var(--hint);
  cursor: pointer;
  font-size: 17px;
  line-height: 1;
  transition: color 0.15s;
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}
.remove-btn:hover { color: var(--extra); }

.add-custom-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  width: 100%;
  padding: 8px;
  margin-top: 8px;
  background: transparent;
  border: 1.5px dashed var(--border2);
  border-radius: var(--radius);
  font-family: 'Plus Jakarta Sans', sans-serif;
  font-size: 12px;
  font-weight: 600;
  color: var(--muted);
  cursor: pointer;
  transition: all 0.15s;
}
.add-custom-btn:hover { border-color: var(--accent); color: var(--accent); background: var(--accent-lt); }

/* ── RIGHT: RESULTS ─────────────────────────────────────── */
.results-panel {
  background: var(--surface);
  border-left: 1px solid var(--border);
  padding: 1.5rem;
  position: sticky;
  top: 58px;
  height: calc(100vh - 58px);
  overflow-y: auto;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

/* Total */
.total-card {
  background: linear-gradient(135deg, var(--accent-lt) 0%, #fff8f3 100%);
  border: 1px solid #f0cba8;
  border-radius: var(--radius-xl);
  padding: 1.1rem 1.25rem;
}
.total-label {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 4px;
}
.total-amount {
  display: flex;
  align-items: baseline;
  gap: 4px;
  line-height: 1;
  margin-bottom: 2px;
}
.total-sym { font-size: 20px; font-weight: 700; color: var(--accent); }
.total-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 38px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: -0.03em;
}
.total-sub {
  font-size: 11px;
  color: var(--muted);
  font-family: 'JetBrains Mono', monospace;
}

/* Section subtitle */
.res-title {
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  color: var(--hint);
  margin-bottom: 8px;
}

/* Breakdown */
.breakdown { display: flex; flex-direction: column; gap: 8px; }
.bk-row {}
.bk-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 4px;
}
.bk-name {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 12px;
  color: var(--muted);
  font-weight: 500;
}
.bk-chip {
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.06em;
  padding: 2px 7px;
  border-radius: 3px;
}
.bk-pct {
  font-family: 'JetBrains Mono', monospace;
  font-size: 10px;
  color: var(--hint);
  margin-left: 4px;
}
.bk-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  font-weight: 500;
  color: var(--text);
}
.bk-bar-bg {
  height: 5px;
  background: var(--surface3);
  border-radius: 3px;
  overflow: hidden;
}
.bk-bar-fill {
  height: 5px;
  border-radius: 3px;
  transition: width 0.35s ease;
}

/* Stat grid */
.stat-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 7px;
}
.stat-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 10px 12px;
}
.stat-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--hint);
  margin-bottom: 3px;
}
.stat-val {
  font-family: 'JetBrains Mono', monospace;
  font-size: 15px;
  font-weight: 500;
  color: var(--text);
}

/* Margin */
.margin-card {
  background: var(--green-lt);
  border: 1px solid #b7dfca;
  border-radius: var(--radius-xl);
  padding: 1rem 1.1rem;
}
.margin-top-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.margin-title { font-size: 12px; font-weight: 600; color: var(--green); }
.margin-pct {
  font-family: 'JetBrains Mono', monospace;
  font-size: 14px;
  font-weight: 500;
  color: var(--green);
  background: #fff;
  border: 1px solid #b7dfca;
  border-radius: 5px;
  padding: 2px 10px;
}
input[type="range"].margin-slider {
  width: 100%;
  height: 4px;
  background: #b7dfca;
  margin-bottom: 10px;
}
input[type="range"].margin-slider::-webkit-slider-thumb {
  background: var(--green);
  box-shadow: 0 1px 4px rgba(26,122,74,0.3);
}
input[type="range"].margin-slider::-moz-range-thumb {
  background: var(--green);
}
.sell-row {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  padding-top: 8px;
  border-top: 1px solid #b7dfca;
}
.sell-left {}
.sell-lbl { font-size: 11px; color: var(--green); font-weight: 600; }
.sell-earn { font-size: 10px; color: #3fa070; font-family: 'JetBrains Mono', monospace; margin-top: 1px; }
.sell-price {
  font-family: 'JetBrains Mono', monospace;
  font-size: 22px;
  font-weight: 500;
  color: var(--green);
}

/* Divider */
.divider { border: none; border-top: 1px solid var(--border); }

/* ── PRINT ──────────────────────────────────────────────── */
@media print {
  .header { position: static; box-shadow: none; }
  .print-btn, .currency-toggle, .add-custom-btn, .remove-btn { display: none !important; }
  .main { display: block; }
  .results-panel { position: static; height: auto; border: 1px solid var(--border); border-radius: var(--radius-xl); margin: 1rem 2rem; }
  .inputs-panel { padding: 1rem 2rem; }
  input[type="range"] { display: none; }
  .slider-wrap::after { content: attr(data-val); font-family: 'JetBrains Mono', monospace; font-size: 12px; color: var(--muted); }
}

/* ── RESPONSIVE ─────────────────────────────────────────── */
@media (max-width: 860px) {
  .main { grid-template-columns: 1fr; }
  .results-panel {
    position: static;
    height: auto;
    border-left: none;
    border-top: 1px solid var(--border);
    order: -1;
  }
  .header { padding: 0 1rem; }
  .tagline { display: none; }
  .inputs-panel { padding: 1rem; }
  .field { grid-template-columns: 130px 1fr 90px; }
}

@media (max-width: 520px) {
  .field { grid-template-columns: 1fr; gap: 4px; }
  .field-label { font-size: 11px; }
  .results-panel { padding: 1rem; }
  .total-val { font-size: 28px; }
  .stat-grid { grid-template-columns: 1fr 1fr; }
  .custom-item { grid-template-columns: 1fr 80px 82px 24px; gap: 4px; }
}