/* ============================================================
   SILVINA AGUIRRE — herramientas.css
   Estilos para la página de herramientas / tools
   Depende de style.css (variables y base)
   ============================================================ */

/* ── PAGE HERO ─────────────────────────────────────────────── */
.page-hero {
  background: var(--burgundy);
  padding: 3rem 0 2.5rem;
  border-bottom: 4px solid var(--steel-dark);
}

.page-hero-title {
  font-family: var(--font-body);
  font-size: 2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
  margin-bottom: 0.6rem;
}

.page-hero-sub {
  font-size: 0.92rem;
  font-weight: 300;
  font-style: italic;
  color: rgba(255,255,255,0.75);
  max-width: 560px;
  line-height: 1.6;
}

/* ── TOOLS SECTION ──────────────────────────────────────────── */
.tools-section {
  background: var(--cream);
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
}

/* ── TOOL CARD ──────────────────────────────────────────────── */
.tool-card {
  background: var(--white);
  border-radius: var(--radius);
  box-shadow: 2px 3px 14px var(--shadow);
  padding: 1.8rem 1.6rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: box-shadow var(--transition), transform var(--transition);
}

.tool-card:hover {
  box-shadow: 4px 8px 24px var(--shadow-deep);
  transform: translateY(-2px);
}

.tool-header {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  border-bottom: 2px solid var(--cream-dark);
  padding-bottom: 0.8rem;
}

.tool-number {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--steel);
  font-family: var(--font-body);
}

.tool-title {
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--burgundy);
  line-height: 1.3;
}

.tool-desc {
  font-size: 0.82rem;
  font-weight: 300;
  color: var(--text-light);
  line-height: 1.65;
}

.tool-note {
  font-size: 0.75rem;
  font-weight: 400;
  color: var(--steel);
  letter-spacing: 0.04em;
  font-style: italic;
}

/* ── CALC LAYOUTS ───────────────────────────────────────────── */
.calc-row {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.calc-col {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.calc-arrow {
  font-size: 1.2rem;
  color: var(--steel);
  flex-shrink: 0;
}

.input-row-labeled {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.input-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
}

/* ── INPUTS ─────────────────────────────────────────────────── */
.input-group {
  display: flex;
  align-items: center;
  border: 1.5px solid var(--cream-dark);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color var(--transition);
  background: var(--white);
}

.input-group:focus-within {
  border-color: var(--burgundy);
}

.calc-input {
  flex: 1;
  border: none;
  outline: none;
  padding: 0.55rem 0.75rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 500;
  color: var(--text);
  background: transparent;
  min-width: 0;
  -moz-appearance: textfield;
}

.calc-input::-webkit-outer-spin-button,
.calc-input::-webkit-inner-spin-button { -webkit-appearance: none; }

.input-unit {
  padding: 0 0.7rem;
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-dark);
  background: var(--cream-dark);
  border-left: 1.5px solid var(--cream-dark);
  white-space: nowrap;
  height: 100%;
  display: flex;
  align-items: center;
}

/* ── SELECTS ────────────────────────────────────────────────── */
.calc-select,
.unit-select {
  border: none;
  outline: none;
  font-family: var(--font-body);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  color: var(--steel-dark);
  background: var(--cream-dark);
  cursor: pointer;
}

.calc-select {
  width: 100%;
  padding: 0.55rem 0.75rem;
  border: 1.5px solid var(--cream-dark);
  border-radius: var(--radius);
  transition: border-color var(--transition);
}

.calc-select:focus { border-color: var(--burgundy); }

.unit-select {
  padding: 0 0.5rem;
  border-left: 1.5px solid var(--cream-dark);
  height: 100%;
}

.select-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.select-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-light);
}

/* ── BUTTON ─────────────────────────────────────────────────── */
.calc-btn {
  background: var(--burgundy);
  color: var(--white);
  border: none;
  border-radius: var(--radius);
  padding: 0.65rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  cursor: pointer;
  transition: background var(--transition);
  align-self: flex-start;
}

.calc-btn:hover {
  background: var(--burgundy-lt);
}

/* ── RESULT BOX ─────────────────────────────────────────────── */
.result-box {
  background: var(--cream-dark);
  border-left: 3px solid var(--burgundy);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  display: flex;
  align-items: baseline;
  gap: 0.6rem;
  min-height: 3rem;
}

.result-label {
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-light);
}

.result-val {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--burgundy);
  font-variant-numeric: tabular-nums;
}

/* ── GAUGE RESULTS ──────────────────────────────────────────── */
.gauge-result-row {
  display: flex;
  gap: 1rem;
}

.gauge-result-box {
  flex: 1;
  background: var(--cream-dark);
  border-left: 3px solid var(--burgundy);
  border-radius: var(--radius);
  padding: 0.8rem 1rem;
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 0.15rem;
}

.gauge-result-val {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--burgundy);
  font-variant-numeric: tabular-nums;
}

.gauge-result-unit {
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--steel-dark);
}

/* ── RESPONSIVE ─────────────────────────────────────────────── */
@media (max-width: 1024px) {
  .tools-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 600px) {
  .tools-grid { grid-template-columns: 1fr; }
  .page-hero-title { font-size: 1.5rem; }
  .calc-row { flex-direction: column; align-items: stretch; }
  .calc-arrow { text-align: center; }
}