/* FIRsense – Tools Page Styles
 * Extends style.css with calculator-specific styling
 */

/* ─── Tools Hero ───────────────────────────────────────────── */
.tools-hero {
  padding: 140px 0 48px;
  text-align: left;
  background: linear-gradient(180deg, var(--navy) 0%, var(--navy2) 100%);
}
.tools-jump {
  display: flex; gap: 12px;
  justify-content: center; flex-wrap: wrap;
  margin-top: 28px;
}

/* ─── Tool Card (shared wrapper) ───────────────────────────── */
.tool-card {
  background: var(--card-bg);
  border: 1px solid var(--border2);
  border-radius: 16px;
  padding: 40px 36px;
}
@media (max-width: 600px) {
  .tool-card { padding: 28px 18px; }
}

.tool-header {
  display: flex; align-items: center; gap: 18px;
  margin-bottom: 32px;
}
.tool-icon {
  display: flex; align-items: center; justify-content: center;
  width: 52px; height: 52px; flex-shrink: 0;
  border-radius: 12px;
  background: rgba(42,218,147,0.1);
  color: var(--teal);
}
.tool-icon-orange {
  background: rgba(255,159,28,0.1);
  color: var(--orange);
}
.tool-title {
  font-size: 22px; font-weight: 800; color: var(--white);
  margin-bottom: 2px;
}
.tool-subtitle {
  font-size: 14px; color: var(--muted);
}

/* ─── Converter Grid ───────────────────────────────────────── */
.converter-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
@media (max-width: 900px) {
  .converter-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 500px) {
  .converter-grid { grid-template-columns: 1fr; }
}

.converter-field label {
  display: block;
  font-size: 11px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
  margin-bottom: 6px;
}

.input-wrap {
  display: flex; align-items: center;
  background: rgba(13,27,42,0.6);
  border: 1px solid var(--border2);
  border-radius: 8px;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.input-wrap:focus-within {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(42,218,147,0.12);
}
.input-wrap input {
  flex: 1; min-width: 0;
  background: transparent; border: none; outline: none;
  color: var(--white); font-family: var(--font);
  font-size: 18px; font-weight: 600;
  padding: 12px 14px;
  font-variant-numeric: tabular-nums;
  -moz-appearance: textfield;
}
.input-wrap input::-webkit-outer-spin-button,
.input-wrap input::-webkit-inner-spin-button {
  -webkit-appearance: none; margin: 0;
}
.input-wrap input::placeholder { color: rgba(143,163,184,0.35); }
.input-unit {
  padding: 0 14px 0 0;
  font-size: 13px; font-weight: 700; color: var(--slate);
  white-space: nowrap; user-select: none;
}

/* Active/result highlight */
.input-wrap-result {
  border-color: rgba(255,159,28,0.3);
  background: rgba(255,159,28,0.04);
}
.input-wrap-result:focus-within {
  border-color: var(--orange);
  box-shadow: 0 0 0 3px rgba(255,159,28,0.12);
}

/* ─── Converter Footer ─────────────────────────────────────── */
.converter-footer {
  display: flex; align-items: center; gap: 20px;
  margin-top: 28px; padding-top: 20px;
  border-top: 1px solid var(--border);
}
.converter-note {
  font-size: 11px; color: var(--slate); line-height: 1.5;
}
@media (max-width: 600px) {
  .converter-footer { flex-direction: column; align-items: flex-start; }
}

/* ─── DFG Calculator ───────────────────────────────────────── */
.dfg-explainer {
  font-size: 15px; color: var(--muted); line-height: 1.7;
  margin-bottom: 24px; max-width: 720px;
}
.dfg-explainer em { color: var(--light); font-style: italic; }

/* CO₂ laser line preset selector */
.dfg-preset-wrap {
  margin-bottom: 14px;
}
.dfg-preset {
  width: 100%;
  padding: 9px 12px;
  font-family: var(--font);
  font-size: 13px; font-weight: 600;
  color: var(--light);
  background: rgba(13,27,42,0.6);
  border: 1px solid var(--border2);
  border-radius: 8px;
  cursor: pointer;
  transition: border-color 0.2s;
  -webkit-appearance: none;
  -moz-appearance: none;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5l5 5 5-5' stroke='%238fa3b8' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 32px;
}
.dfg-preset:hover,
.dfg-preset:focus {
  border-color: var(--teal);
  outline: none;
}
.dfg-preset option {
  background: var(--navy2);
  color: var(--light);
  padding: 6px 8px;
}
.dfg-preset optgroup {
  color: var(--muted);
  font-style: normal;
  font-size: 11px;
  letter-spacing: 0.06em;
}

/* Mode selector */
.dfg-mode {
  display: flex; gap: 8px; flex-wrap: wrap;
  margin-bottom: 28px;
}
.dfg-mode-btn {
  padding: 8px 18px; border-radius: 6px;
  font-size: 13px; font-weight: 600; font-family: var(--font);
  cursor: pointer; transition: all 0.2s;
  background: rgba(65,89,119,0.15);
  border: 1px solid var(--border2);
  color: var(--muted);
}
.dfg-mode-btn:hover { border-color: var(--orange); color: var(--light); }
.dfg-mode-btn.active {
  background: rgba(255,159,28,0.1);
  border-color: var(--orange);
  color: var(--orange);
}

/* DFG layout */
.dfg-inputs {
  display: flex; align-items: flex-start; gap: 16px;
  flex-wrap: wrap;
}
.dfg-col {
  flex: 1 1 200px; min-width: 180px;
}
.dfg-col-result {
  border: 1px solid rgba(255,159,28,0.2);
  border-radius: 12px; padding: 16px;
  background: rgba(255,159,28,0.03);
}
.dfg-operator {
  display: flex; align-items: center; justify-content: center;
  font-size: 32px; font-weight: 800; color: var(--orange);
  padding-top: 36px; flex: 0 0 36px;
}
.dfg-label {
  font-size: 14px; font-weight: 700; color: var(--light);
  margin-bottom: 14px;
}
.dfg-field {
  margin-bottom: 12px;
}
.dfg-field label {
  display: block;
  font-size: 11px; font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
  margin-bottom: 4px;
}

/* Solved-for field highlight */
.dfg-col.solved { opacity: 0.85; }
.dfg-col.solved .input-wrap {
  border-color: rgba(42,218,147,0.3);
  background: rgba(42,218,147,0.04);
}

/* ─── Tool icon teal variant ───────────────────────────────── */
.tool-icon-teal {
  background: rgba(42,218,147,0.1);
  color: var(--teal);
}

/* ─── DFG Range Planner ───────────────────────────────────── */

/* Laser type toggle buttons */
.range-type-btns {
  display: flex; gap: 6px;
}
.range-type-btn {
  flex: 1; padding: 8px 12px; border-radius: 6px;
  font-size: 13px; font-weight: 600; font-family: var(--font);
  cursor: pointer; transition: all 0.2s; text-align: center;
  background: rgba(65,89,119,0.15);
  border: 1px solid var(--border2);
  color: var(--muted);
}
.range-type-btn:hover { border-color: var(--teal); color: var(--light); }
.range-type-btn.active {
  background: rgba(42,218,147,0.1);
  border-color: var(--teal);
  color: var(--teal);
}

/* CO₂ info line (shown below selector) */
.range-co2-info {
  min-height: 20px; margin-top: 6px;
}
.range-info-line {
  font-size: 12px; color: var(--muted);
  font-variant-numeric: tabular-nums;
}

/* Range laser column */
.range-laser-col {
  min-width: 200px;
}

/* Range output display */
.range-output-placeholder {
  font-size: 14px; color: var(--slate);
  font-style: italic; padding: 20px 0;
}

.range-results-table {
  display: grid;
  grid-template-columns: auto 1fr 1fr auto;
  gap: 0;
  font-variant-numeric: tabular-nums;
}
.range-row {
  display: contents;
}
.range-row > span {
  padding: 8px 10px;
  border-bottom: 1px solid var(--border);
}
.range-row-header > span {
  font-size: 11px; font-weight: 700; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--muted);
  border-bottom: 1px solid var(--border2);
}
.range-row-label {
  font-size: 12px; font-weight: 600; color: var(--muted);
  text-transform: uppercase; letter-spacing: 0.06em;
}
.range-row-val {
  font-size: 16px; font-weight: 700; color: var(--white);
  text-align: right;
}
.range-row-unit {
  font-size: 12px; font-weight: 700; color: var(--slate);
  display: flex; align-items: center;
}

.range-summary {
  font-size: 14px; color: var(--muted); line-height: 1.6;
  margin-top: 16px; padding-top: 12px;
  border-top: 1px solid var(--border);
}
.range-summary strong { color: var(--teal); }

@media (max-width: 700px) {
  .range-results-table { font-size: 14px; }
  .range-row-val { font-size: 14px; }
}

/* ─── Nav highlight for Tools ──────────────────────────────── */
.nav-tools-link {
  color: var(--orange) !important;
  position: relative;
}
.nav-tools-link::before {
  content: '';
  position: absolute; left: -10px; top: 50%; transform: translateY(-50%);
  width: 5px; height: 5px; border-radius: 50%;
  background: var(--orange);
}
.mob-tools-link {
  color: var(--orange) !important;
}

@media (max-width: 768px) {
  .dfg-operator { padding-top: 12px; font-size: 24px; flex: 0 0 28px; }
  .dfg-inputs { gap: 10px; }
}
@media (max-width: 600px) {
  .dfg-inputs { flex-direction: column; align-items: stretch; }
  .dfg-operator { padding: 4px 0; flex: 0 0 auto; text-align: center; }
}