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

:root {
  --sky:    #C8651A;   /* Cielo Vista orange */
  --sky2:   #E07830;
  --sky3:   #F0A060;
  --horizon:#FEF3E8;
  --earth:  #3D2B1F;
  --soil:   #6B4C35;
  --sage:   #5C7A4E;
  --sage2:  #7A9E68;
  --straw:  #C8A84B;
  --straw2: #E8C86A;
  --cream:  #FAF8F3;
  --white:  #FFFFFF;
  --ink:    #1A1208;
  --mid:    #6B6458;
  --border: #DDD8CE;
}

body {
  font-family: 'Inter', sans-serif;
  background: #F2EFE9;
  color: var(--ink);
  min-height: 100vh;
}

/* ---- HEADER ---- */
.site-header {
  background: var(--sky);
  position: relative;
  overflow: hidden;
}

.site-header::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, #B85A10 0%, var(--sky) 60%, #C8651A 100%);
}

/* Subtle horizon line decoration */
.site-header::after {
  content: '';
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, transparent 0%, var(--straw) 30%, var(--straw2) 50%, var(--straw) 70%, transparent 100%);
}

.header-inner {
  position: relative;
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 24px;
  display: flex;
  align-items: center;
  gap: 18px;
}

/* Farm logo mark — stylized CV with wheat */
.logo-mark {
  width: 70px;
  height: 70px;
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  background: #fff;
  padding: 4px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.25);
}

.logo-mark svg { width: 34px; height: 34px; }

.header-text { flex: 1; }

.farm-name {
  font-family: 'Playfair Display', Georgia, serif;
  font-size: 22px;
  font-weight: 900;
  color: var(--white);
  letter-spacing: 0.3px;
  line-height: 1.1;
}

.farm-name em {
  font-style: normal;
  color: var(--straw2);
}

.farm-sub {
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-top: 4px;
}

.tool-badge {
  background: rgba(200,168,75,0.15);
  border: 1px solid rgba(200,168,75,0.35);
  border-radius: 20px;
  padding: 4px 12px;
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--straw2);
  flex-shrink: 0;
}

/* ---- MAIN LAYOUT ---- */
.main {
  max-width: 760px;
  margin: 0 auto;
  padding: 20px 16px 50px;
}

/* ---- SECTION BLOCKS ---- */
.section {
  background: var(--white);
  border-radius: 12px;
  border: 1px solid var(--border);
  margin-bottom: 16px;
  overflow: hidden;
  box-shadow: 0 1px 4px rgba(0,0,0,0.06);
}

.section-header {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 14px 18px;
  border-bottom: 1px solid var(--border);
  background: var(--cream);
}

.step-num {
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--sky);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.section-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--sky);
  text-transform: uppercase;
  letter-spacing: 1px;
}

.section-body { padding: 16px 18px; }

/* ---- SPEED GRID ---- */
.speed-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 8px;
  margin-bottom: 14px;
}

.speed-btn {
  border: 1.5px solid var(--border);
  border-radius: 8px;
  background: var(--cream);
  padding: 12px 6px 10px;
  cursor: pointer;
  text-align: center;
  font-family: 'Inter', sans-serif;
  transition: all 0.12s;
}

.speed-btn:active { transform: scale(0.97); }

.sp-num {
  font-family: 'Playfair Display', serif;
  font-size: 26px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1;
}

.sp-label {
  font-size: 10px;
  color: var(--mid);
  margin-top: 3px;
  font-weight: 500;
}

.sp-secs {
  font-size: 11px;
  font-weight: 700;
  color: var(--sage);
  margin-top: 2px;
}

.speed-btn.active {
  border-color: var(--sky);
  background: var(--sky);
}

.speed-btn.active .sp-num { color: #fff; }
.speed-btn.active .sp-label { color: rgba(255,255,255,0.6); }
.speed-btn.active .sp-secs { color: var(--straw2); }

/* Formula pill */
.formula-pill {
  background: var(--earth);
  border-radius: 8px;
  padding: 10px 14px;
  font-size: 12px;
  color: rgba(255,255,255,0.75);
  line-height: 1.7;
  font-weight: 400;
}

.formula-pill strong { color: var(--straw2); font-weight: 700; }

/* ---- NOZZLE SECTIONS ---- */
.nozzle-block {
  border: 1.5px solid var(--border);
  border-radius: 9px;
  padding: 14px;
  margin-bottom: 10px;
  background: var(--cream);
}

.nozzle-block-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 12px;
}

.nozzle-type-label {
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
}

.btn-remove {
  background: none;
  border: 1px solid #ddd;
  border-radius: 5px;
  padding: 3px 10px;
  font-size: 11px;
  color: #aaa;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
  transition: all 0.1s;
}

.btn-remove:hover { border-color: #e55; color: #e55; }

.field-group { margin-bottom: 10px; }
.field-group:last-child { margin-bottom: 0; }

.field-label {
  font-size: 10px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 5px;
  display: block;
}

select.field-select,
input.field-input {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: 7px;
  font-size: 16px;
  font-family: 'Inter', sans-serif;
  background: var(--white);
  color: var(--ink);
  appearance: none;
  -webkit-appearance: none;
  transition: border-color 0.1s;
}

select.field-select:focus,
input.field-input:focus { border-color: var(--sky2); outline: none; box-shadow: 0 0 0 3px rgba(200,101,26,0.15); }

.two-col { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }

.nozzle-info-strip {
  margin-top: 10px;
  padding: 8px 12px;
  background: rgba(92,122,78,0.1);
  border-radius: 6px;
  border-left: 3px solid var(--sage);
  font-size: 12px;
  color: var(--earth);
}

.nozzle-info-strip strong { color: var(--sage); }

.btn-add-nozzle {
  width: 100%;
  padding: 10px;
  background: none;
  border: 1.5px dashed var(--sky3);
  color: var(--sky2);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.5px;
  cursor: pointer;
  transition: all 0.12s;
  margin-top: 2px;
}

.btn-add-nozzle:hover { background: var(--horizon); }

/* Combined flow strip */
.flow-strip {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 8px;
  margin-top: 14px;
  background: var(--sky);
  border-radius: 9px;
  padding: 14px;
}

.flow-item .fl-label {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 5px;
}

.flow-item .fl-val {
  font-family: 'Playfair Display', serif;
  font-size: 22px;
  font-weight: 700;
  color: #fff;
}

.flow-item .fl-unit { font-size: 10px; color: rgba(255,255,255,0.45); margin-top: 1px; }
.flow-item.highlight .fl-val { color: var(--straw2); font-size: 26px; }

/* ---- FIELD SECTIONS ---- */
.field-card {
  border: 1.5px solid var(--border);
  border-radius: 9px;
  padding: 14px;
  margin-bottom: 10px;
  background: var(--cream);
}

.field-card-header {
  display: flex;
  gap: 10px;
  align-items: center;
  margin-bottom: 12px;
}

.field-name-input {
  flex: 1;
  padding: 8px 12px;
  border: 1.5px solid var(--border);
  border-radius: 7px;
  font-size: 16px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  color: var(--ink);
  background: var(--white);
}

.field-name-input:focus { border-color: var(--sky2); outline: none; box-shadow: 0 0 0 3px rgba(200,101,26,0.15); }

.rows-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.rows-row .field-label { margin: 0; white-space: nowrap; }

.rows-input {
  flex: 1;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: 7px;
  font-size: 16px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  background: var(--white);
  color: var(--ink);
  -webkit-appearance: none;
}

.rows-input:focus { border-color: var(--sky2); outline: none; box-shadow: 0 0 0 3px rgba(200,101,26,0.15); }

.rows-unit {
  font-size: 12px;
  color: var(--mid);
  font-weight: 500;
  white-space: nowrap;
}

.field-results-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr 1fr;
  gap: 6px;
  margin-top: 12px;
}

.fr-box {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 7px;
  padding: 9px 10px;
}

.fr-box .fr-lbl {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--mid);
  margin-bottom: 3px;
}

.fr-box .fr-val {
  font-family: 'Playfair Display', serif;
  font-size: 19px;
  font-weight: 700;
  color: var(--ink);
  line-height: 1.1;
}

.fr-box .fr-unit { font-size: 10px; color: var(--mid); margin-top: 1px; }
.fr-box.accent { background: var(--sky); border-color: var(--sky); }
.fr-box.accent .fr-lbl { color: rgba(255,255,255,0.6); }
.fr-box.accent .fr-val { color: var(--straw2); font-size: 22px; }
.fr-box.accent .fr-unit { color: rgba(255,255,255,0.5); }

.btn-add-field {
  width: 100%;
  padding: 10px;
  background: none;
  border: 1.5px dashed var(--sage2);
  color: var(--sage);
  border-radius: 8px;
  font-size: 12px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  margin-top: 2px;
  transition: all 0.12s;
}

.btn-add-field:hover { background: rgba(92,122,78,0.07); }

/* ---- GRAND TOTAL ---- */
.grand-total-card {
  background: var(--earth);
  border-radius: 12px;
  padding: 18px;
  margin-top: 14px;
  position: relative;
  overflow: hidden;
}

.grand-total-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--straw), var(--straw2), var(--straw));
}

.gt-heading {
  font-family: 'Playfair Display', serif;
  font-size: 13px;
  font-weight: 700;
  color: rgba(255,255,255,0.5);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 14px;
}

.gt-grid {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 10px;
}

.gt-item .gt-lbl {
  font-size: 9px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.45);
  margin-bottom: 3px;
}

.gt-item .gt-val {
  font-family: 'Playfair Display', serif;
  font-size: 24px;
  font-weight: 700;
  color: #fff;
  line-height: 1.1;
}

.gt-item .gt-unit { font-size: 10px; color: rgba(255,255,255,0.4); margin-top: 1px; }
.gt-item.gold .gt-val { color: var(--straw2); }

/* ---- FOOTER ---- */
footer {
  text-align: center;
  padding: 12px 16px 24px;
  font-size: 11px;
  color: rgba(0,0,0,0.3);
  letter-spacing: 0.3px;
}

footer strong { color: rgba(0,0,0,0.45); }

/* Divider */
.divider {
  height: 1px;
  background: var(--border);
  margin: 14px 0;
}

/* ---- HISTORY ---- */
.history-gate-text,
.history-empty {
  font-size: 12px;
  color: var(--mid);
  margin-bottom: 10px;
  line-height: 1.5;
}

.history-status {
  font-size: 12px;
  font-weight: 600;
  color: var(--sage);
  margin-bottom: 10px;
  line-height: 1.5;
}

.history-input {
  width: 100%;
  padding: 9px 12px;
  border: 1.5px solid var(--border);
  border-radius: 7px;
  font-size: 16px;
  font-family: 'Inter', sans-serif;
  background: var(--white);
  color: var(--ink);
  transition: border-color 0.1s;
}
.history-input:focus {
  border-color: var(--sky2);
  outline: none;
  box-shadow: 0 0 0 3px rgba(200,101,26,0.15);
}

.history-unlock-row,
.history-save-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.btn-unlock,
.btn-save {
  width: 100%;
  padding: 11px;
  border: none;
  border-radius: 8px;
  background: var(--sky);
  color: #fff;
  font-size: 13px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  letter-spacing: 0.4px;
  cursor: pointer;
  transition: background 0.12s, transform 0.06s;
}
.btn-unlock:hover,
.btn-save:hover { background: var(--sky2); }
.btn-unlock:active,
.btn-save:active { transform: scale(0.99); }

.history-error {
  margin-top: 8px;
  font-size: 12px;
  font-weight: 600;
  color: #c33;
}

.history-list {
  margin-top: 14px;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.history-card {
  border: 1.5px solid var(--border);
  border-radius: 9px;
  padding: 12px;
  background: var(--cream);
}

.history-card-label {
  font-size: 14px;
  color: var(--ink);
  line-height: 1.3;
}

.history-badge {
  display: inline-block;
  margin-left: 6px;
  padding: 2px 7px;
  border-radius: 10px;
  background: rgba(200,168,75,0.2);
  border: 1px solid rgba(200,168,75,0.4);
  color: var(--soil);
  font-size: 9px;
  font-weight: 700;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  vertical-align: middle;
}

.history-card-date {
  font-size: 11px;
  color: var(--mid);
  margin-top: 3px;
}

.history-card-summary {
  font-size: 12px;
  color: var(--earth);
  margin-top: 6px;
  line-height: 1.5;
}

.history-card-actions {
  margin-top: 10px;
  display: flex;
  gap: 8px;
}

.btn-load,
.btn-del {
  padding: 6px 14px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: var(--white);
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  font-family: 'Inter', sans-serif;
  cursor: pointer;
  transition: all 0.1s;
}
.btn-load:hover { border-color: var(--sky2); color: var(--sky2); }
.btn-del:hover  { border-color: #e55; color: #e55; }