/* =============================================
   COMPONENTS.CSS · Calculadora, Marcas,
   Portfolio, FAQ, Contacto, Footer, Responsive
   ============================================= */

/* ===== CALCULADORA DE AHORRO ===== */
.calculadora {
  background: var(--dark-bg);
  color: #fff;
  overflow: hidden;
}
.calculadora::after {
  content: '';
  position: absolute;
  bottom: -200px; left: -200px;
  width: 600px; height: 600px;
  background: radial-gradient(circle, rgba(245,166,35,0.1) 0%, transparent 70%);
  pointer-events: none;
}
.calc-wrapper {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  position: relative;
  z-index: 1;
}
.calc-left h2 { color: #fff; margin-bottom: 16px; }
.calc-left p  { color: rgba(255,255,255,0.7); font-size: 16px; margin-bottom: 36px; }
.calc-form    { display: flex; flex-direction: column; gap: 28px; }

.calc-group label {
  display: block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.7);
  margin-bottom: 12px;
}
.slider-val {
  display: inline-block;
  background: var(--naranja);
  color: #fff;
  font-size: 22px;
  font-weight: 700;
  padding: 4px 14px;
  border-radius: 10px;
  margin-bottom: 14px;
}

/* Range input */
input[type="range"] {
  width: 100%;
  height: 6px;
  border-radius: 3px;
  outline: none;
  -webkit-appearance: none;
  appearance: none;
  cursor: pointer;
  background: rgba(255,255,255,0.15);
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--naranja);
  border: 3px solid #fff;
  box-shadow: 0 0 12px rgba(245,166,35,0.7);
  cursor: pointer;
}
input[type="range"]::-moz-range-thumb {
  width: 22px; height: 22px;
  border-radius: 50%;
  background: var(--naranja);
  border: 3px solid #fff;
  box-shadow: 0 0 12px rgba(245,166,35,0.7);
  cursor: pointer;
}
input[type="range"]::-webkit-slider-runnable-track {
  border-radius: 3px;
  height: 6px;
}
.slider-range {
  display: flex;
  justify-content: space-between;
  font-size: 12px;
  color: rgba(255,255,255,0.4);
  margin-top: 8px;
}

.calc-select {
  width: 100%;
  padding: 14px 18px;
  border-radius: 12px;
  font-family: inherit;
  font-size: 15px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(245,166,35,0.3);
  color: #fff;
  cursor: pointer;
  outline: none;
  transition: border-color 0.2s;
}
.calc-select:focus { border-color: var(--naranja); }
.calc-select option { background: #0a1628; color: #fff; }

/* Tarjeta resultado */
.calc-result-card {
  padding: 40px;
  border-radius: 28px;
  background: linear-gradient(145deg, rgba(245,166,35,0.12), rgba(255,182,39,0.05));
  border: 1px solid rgba(245,166,35,0.35);
  -webkit-backdrop-filter: blur(20px);
  backdrop-filter: blur(20px);
  box-shadow: 0 20px 60px rgba(245,166,35,0.15), inset 0 1px 0 rgba(255,255,255,0.1);
  position: sticky;
  top: 100px;
}
.result-label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.55);
  margin-bottom: 8px;
}
.result-big {
  font-size: 60px;
  font-weight: 700;
  color: var(--naranja);
  line-height: 1;
  margin-bottom: 4px;
  text-shadow: 0 0 30px rgba(245,166,35,0.4);
}
.result-sub { font-size: 13px; color: rgba(255,255,255,0.45); margin-bottom: 28px; }
.result-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin: 24px 0;
}
.result-item {
  padding: 18px;
  border-radius: 14px;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.08);
}
.result-item-num { font-size: 22px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.result-item-label { font-size: 11px; color: rgba(255,255,255,0.5); line-height: 1.4; }
.result-divider { height: 1px; background: rgba(245,166,35,0.2); margin: 20px 0; }
.result-disclaimer { font-size: 12px; color: rgba(255,255,255,0.35); font-style: italic; }
.calc-cta { width: 100%; justify-content: center; font-size: 15px; padding: 16px; margin-top: 22px; }

/* ===== MARCAS / EQUIPAMIENTO ===== */
.marcas { background: var(--gris-claro); }

.marcas-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
  margin-bottom: 40px;
}
.marca-card {
  padding: 28px 18px;
  background: #fff;
  border-radius: 16px;
  border: 1px solid rgba(245,166,35,0.12);
  box-shadow: 0 2px 16px rgba(0,0,0,0.04);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  transition: transform 0.3s, box-shadow 0.3s, border-color 0.3s;
}
.marca-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(245,166,35,0.15);
  border-color: rgba(245,166,35,0.4);
}
.marca-icon {
  width: 52px; height: 52px;
  border-radius: 14px;
  background: linear-gradient(135deg, rgba(245,166,35,0.15), rgba(255,182,39,0.05));
  display: flex; align-items: center; justify-content: center;
  color: var(--naranja);
}
.marca-name { font-size: 14px; font-weight: 700; color: var(--negro); letter-spacing: 0.5px; }
.marca-cat  { font-size: 11px; color: var(--texto-gris); font-weight: 300; }
.marcas-note {
  text-align: center;
  font-size: 14px;
  color: var(--texto-gris);
  padding: 22px 32px;
  background: #fff;
  border-radius: 14px;
  border: 1px solid rgba(245,166,35,0.15);
}

/* ===== PORTFOLIO / PROYECTOS ===== */
.proyectos { background: #fff; }

.portfolio-filters {
  display: flex;
  justify-content: center;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.filter-btn {
  padding: 10px 24px;
  border-radius: 999px;
  border: 1.5px solid rgba(245,166,35,0.3);
  background: transparent;
  color: var(--texto-gris);
  font-family: inherit;
  font-size: 13px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.25s;
}
.filter-btn:hover  { border-color: var(--naranja); color: var(--naranja); }
.filter-btn.active { background: var(--naranja); border-color: var(--naranja); color: #fff; }

.portfolio-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.portfolio-card {
  border-radius: 20px;
  overflow: hidden;
  box-shadow: 0 4px 24px rgba(0,0,0,0.08);
  border: 1px solid rgba(245,166,35,0.1);
  transition: transform 0.3s, box-shadow 0.3s;
  background: #fff;
}
.portfolio-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 16px 48px rgba(245,166,35,0.2);
}
.portfolio-card.hidden { display: none; }

.portfolio-thumb {
  height: 190px;
  position: relative;
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
}
.portfolio-thumb .thumb-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(0deg, rgba(10,22,40,0.55) 0%, transparent 60%);
}
.portfolio-thumb .pc-cat {
  position: absolute;
  top: 14px; left: 14px;
  background: rgba(245,166,35,0.92);
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
  color: #fff;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  padding: 5px 12px;
  border-radius: 999px;
}
.portfolio-body { padding: 24px; }
.portfolio-body h3 { font-size: 17px; margin-bottom: 8px; color: var(--negro); }
.portfolio-meta  { display: flex; gap: 16px; margin-bottom: 10px; flex-wrap: wrap; }
.portfolio-meta span {
  font-size: 12px;
  color: var(--texto-gris);
  display: flex;
  align-items: center;
  gap: 5px;
}
.portfolio-meta svg { color: var(--naranja); }
.portfolio-body p { font-size: 13px; color: #666; line-height: 1.6; }

/* Thumbs con gradiente por categoría */
.thumb-residencial { background: linear-gradient(135deg, #0a1f3d, #1a3a6b); }
.thumb-industrial  { background: linear-gradient(135deg, #1a1a2e, #16213e); }
.thumb-agricultura { background: linear-gradient(135deg, #0d2818, #1a4a2e); }
.thumb-comunidad   { background: linear-gradient(135deg, #1a0a3d, #3d1a6b); }

/* ===== FAQ ===== */
.faq { background: var(--gris-claro); }

.faq-list {
  max-width: 820px;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  gap: 12px;
}
.faq-item {
  background: #fff;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid rgba(245,166,35,0.15);
  box-shadow: 0 2px 12px rgba(0,0,0,0.04);
  transition: box-shadow 0.3s, border-color 0.3s;
}
.faq-item.open {
  box-shadow: 0 8px 32px rgba(245,166,35,0.15);
  border-color: rgba(245,166,35,0.4);
}
.faq-q {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 22px 28px;
  background: none;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-size: 16px;
  font-weight: 600;
  color: var(--negro);
  text-align: left;
  gap: 16px;
}
.faq-q svg { flex-shrink: 0; color: var(--naranja); transition: transform 0.3s; }
.faq-item.open .faq-q svg { transform: rotate(45deg); }
.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease, padding 0.3s ease;
  padding: 0 28px;
}
.faq-item.open .faq-a { max-height: 300px; padding: 0 28px 24px; }
.faq-a p { font-size: 15px; color: #555; line-height: 1.7; }
.faq-footer { text-align: center; margin-top: 40px; }
.faq-footer p { color: var(--texto-gris); margin-bottom: 20px; }

/* ===== CONTACTO ===== */
.contacto {
  background: radial-gradient(ellipse at 50% 0%, #0a1f3d 0%, #050a14 75%);
  color: #fff;
  position: relative;
  overflow: hidden;
}
.contacto::before {
  content: '';
  position: absolute;
  top: 50%; left: 50%;
  transform: translate(-50%, -50%);
  width: 1000px; height: 600px;
  background: radial-gradient(ellipse, rgba(245,166,35,0.18) 0%, transparent 65%);
  pointer-events: none;
}
.contacto-wrapper {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 72px;
  align-items: start;
}
.contacto-left h2 { font-size: 44px; color: #fff; margin-bottom: 16px; }
.contacto-left h2 .accent { color: var(--naranja); }
.contacto-left > p { color: rgba(255,255,255,0.7); font-size: 16px; margin-bottom: 40px; }

.contact-info-list { display: flex; flex-direction: column; gap: 22px; }
.ci-item { display: flex; align-items: center; gap: 18px; }
.ci-icon {
  width: 46px; height: 46px;
  border-radius: 12px;
  flex-shrink: 0;
  background: rgba(245,166,35,0.12);
  border: 1px solid rgba(245,166,35,0.25);
  display: flex; align-items: center; justify-content: center;
  color: var(--naranja);
}
.ci-text { font-size: 15px; color: rgba(255,255,255,0.85); }
.ci-text small { display: block; font-size: 12px; color: rgba(255,255,255,0.4); font-weight: 300; margin-bottom: 2px; }

/* Formulario */
.contact-form {
  background: rgba(255,255,255,0.06);
  -webkit-backdrop-filter: blur(24px);
  backdrop-filter: blur(24px);
  border: 1px solid rgba(245,166,35,0.2);
  border-radius: 28px;
  padding: 44px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3), inset 0 1px 0 rgba(255,255,255,0.1);
}
.form-title { font-size: 20px; font-weight: 600; color: #fff; margin-bottom: 28px; }

.form-fields { display: flex; flex-direction: column; gap: 18px; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 18px; }

.form-group { display: flex; flex-direction: column; gap: 8px; }
.form-group label {
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
}
.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: 14px 18px;
  border-radius: 12px;
  font-family: inherit;
  font-size: 15px;
  background: rgba(255,255,255,0.08);
  border: 1px solid rgba(255,255,255,0.12);
  color: #fff;
  outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.form-input::placeholder,
.form-textarea::placeholder { color: rgba(255,255,255,0.3); }
.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--naranja);
  box-shadow: 0 0 0 3px rgba(245,166,35,0.15);
}
.form-select        { cursor: pointer; }
.form-select option { background: #0a1628; color: #fff; }
.form-textarea { resize: vertical; min-height: 110px; line-height: 1.6; }

.form-check {
  display: flex;
  align-items: flex-start;
  gap: 12px;
  cursor: pointer;
}
.form-check input {
  width: 18px; height: 18px;
  flex-shrink: 0;
  margin-top: 2px;
  accent-color: var(--naranja);
  cursor: pointer;
}
.form-check span { font-size: 13px; color: rgba(255,255,255,0.55); line-height: 1.5; }
.form-check span a { color: var(--naranja); }

.form-submit {
  width: 100%;
  padding: 18px;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--naranja), var(--naranja-oscuro));
  border: none;
  color: #fff;
  font-family: inherit;
  font-size: 16px;
  font-weight: 700;
  cursor: pointer;
  transition: all 0.3s;
  box-shadow: 0 8px 30px rgba(245,166,35,0.4);
  margin-top: 8px;
}
.form-submit:hover {
  transform: translateY(-2px);
  box-shadow: 0 12px 40px rgba(245,166,35,0.6);
}
.form-submit:disabled { opacity: 0.6; cursor: not-allowed; transform: none; }

.form-success {
  display: none;
  text-align: center;
  padding: 40px 20px;
}
.form-success svg   { color: var(--naranja); margin-bottom: 16px; }
.form-success h3    { color: #fff; margin-bottom: 10px; font-size: 22px; }
.form-success p     { color: rgba(255,255,255,0.65); font-size: 15px; }

/* ===== FOOTER ===== */
footer {
  background: var(--darker-bg);
  color: rgba(255,255,255,0.6);
  padding: 80px 0 30px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 48px;
}
.footer-brand p { margin-top: 14px; font-size: 14px; max-width: 280px; line-height: 1.7; }
.footer-col h4 {
  color: #fff;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 18px;
}
.footer-col ul { list-style: none; }
.footer-col li { margin-bottom: 10px; }
.footer-col a {
  color: rgba(255,255,255,0.55);
  text-decoration: none;
  font-size: 14px;
  transition: color 0.2s;
}
.footer-col a:hover { color: var(--naranja); }
.footer-divider {
  height: 1px;
  background: rgba(245,166,35,0.12);
  margin-bottom: 28px;
}
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 16px;
  font-size: 13px;
}
.socials { display: flex; gap: 10px; }
.socials a {
  width: 38px; height: 38px;
  border-radius: 50%;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.08);
  display: flex; align-items: center; justify-content: center;
  color: rgba(255,255,255,0.6);
  transition: all 0.2s;
}
.socials a:hover { background: var(--naranja); color: #fff; border-color: var(--naranja); }

/* ===== RESPONSIVE COMPONENTS ===== */
@media (max-width: 1024px) {
  .calc-wrapper      { grid-template-columns: 1fr; }
  .calc-result-card  { position: static; }
  .marcas-grid       { grid-template-columns: repeat(3, 1fr); }
  .portfolio-grid    { grid-template-columns: 1fr 1fr; }
  .contacto-wrapper  { grid-template-columns: 1fr; gap: 48px; }
  .footer-grid       { grid-template-columns: 1fr 1fr; }
  .form-row          { grid-template-columns: 1fr; }
}
@media (max-width: 768px) {
  .marcas-grid       { grid-template-columns: repeat(2, 1fr); }
  .portfolio-grid    { grid-template-columns: 1fr; }
  .contact-form      { padding: 28px 22px; }
  .contacto-left h2  { font-size: 32px; }
  .footer-grid       { grid-template-columns: 1fr; gap: 32px; }
  .portfolio-filters { gap: 8px; }
  .filter-btn        { font-size: 12px; padding: 8px 16px; }
  .cursor-glow       { display: none; }
}