/* ============================================================
   HELIOS SOLAR SUPPLY — styles.css
   Mobile-First · CSS Variables · Sora + Inter
   ============================================================ */

/* ===== VARIABLES ===== */
:root {
  --color-primario: #1565C0;
  --color-primario-dark: #0D47A1;
  --color-primario-light: #1E88E5;
  --color-amarillo: #FFD600;
  --color-amarillo-dark: #F9A825;
  --color-verde: #2E7D32;
  --color-verde-light: #43A047;
  --color-verde-glow: #66BB6A;
  --color-bg: #F0F4F8;
  --color-bg-dark: #0A1628;
  --color-surface: #FFFFFF;
  --color-text: #1A2332;
  --color-text-muted: #546E7A;
  --color-border: #E2E8F0;
  --font-display: 'Sora', sans-serif;
  --font-body: 'Inter', sans-serif;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
  --shadow-md: 0 8px 32px rgba(0,0,0,0.12);
  --shadow-lg: 0 20px 60px rgba(0,0,0,0.18);
  --transition: 0.25s ease;
  --max-w: 1200px;
}

/* ===== RESET ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; font-size: 16px; }
body {
  font-family: var(--font-body);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}
img { display: block; width: 100%; height: 100%; object-fit: cover; border-radius: 8px; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }

/* ===== CONTAINER ===== */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 20px;
}

/* ===== TYPOGRAPHY ===== */
h1, h2, h3 { font-family: var(--font-display); font-weight: 700; line-height: 1.2; }
h1 { font-size: clamp(2rem, 6vw, 3.8rem); }
h2 { font-size: clamp(1.6rem, 4vw, 2.8rem); }
h3 { font-size: clamp(1.1rem, 2.5vw, 1.4rem); }

.eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primario);
  background: rgba(21, 101, 192, 0.1);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}

.section-header {
  text-align: center;
  max-width: 680px;
  margin: 0 auto 52px;
}
.section-header p {
  margin-top: 14px;
  color: var(--color-text-muted);
  font-size: 1.05rem;
}
.section-header.light h2,
.section-header.light p { color: #fff; }
.section-header.light .eyebrow {
  background: rgba(255,214,0,0.15);
  color: var(--color-amarillo);
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  padding: 14px 28px;
  border-radius: var(--radius);
  cursor: pointer;
  border: none;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
  text-decoration: none;
}
.btn-primary {
  background: linear-gradient(135deg, var(--color-primario), var(--color-primario-light));
  color: #fff;
  box-shadow: 0 4px 20px rgba(21, 101, 192, 0.35);
}
.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 28px rgba(21, 101, 192, 0.5);
}
.btn-ghost {
  background: rgba(255,255,255,0.12);
  color: #fff;
  border: 2px solid rgba(255,255,255,0.4);
  backdrop-filter: blur(6px);
}
.btn-ghost:hover {
  background: rgba(255,255,255,0.2);
  border-color: rgba(255,255,255,0.7);
  transform: translateY(-3px);
}
.btn-cta-sim {
  width: 100%;
  background: linear-gradient(135deg, var(--color-amarillo-dark), var(--color-amarillo));
  color: var(--color-bg-dark);
  font-size: 1.05rem;
  padding: 18px;
  box-shadow: 0 6px 24px rgba(249, 168, 37, 0.4);
  margin-top: 8px;
}
.btn-cta-sim:hover {
  transform: translateY(-4px);
  box-shadow: 0 12px 36px rgba(249, 168, 37, 0.55);
}
.full-width { width: 100%; }

/* ===== HEADER ===== */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 900;
  background: transparent;
  transition: background var(--transition), box-shadow var(--transition);
}
.site-header.scrolled {
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(16px);
  box-shadow: 0 2px 20px rgba(0,0,0,0.3);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 68px;
}
.logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
}
.logo-img {
  width: 38px;
  height: 38px;
  object-fit: contain;
  border-radius: 0;
}
.logo-text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  letter-spacing: -0.02em;
}
.logo-accent { color: var(--color-amarillo); }

.main-nav {
  display: none;
  gap: 8px;
  align-items: center;
}
.main-nav a {
  color: rgba(255,255,255,0.85);
  font-size: 0.9rem;
  font-family: var(--font-display);
  font-weight: 500;
  padding: 8px 14px;
  border-radius: 8px;
  transition: color var(--transition), background var(--transition);
}
.main-nav a:hover { color: #fff; background: rgba(255,255,255,0.08); }
.main-nav .nav-cta {
  background: var(--color-amarillo);
  color: var(--color-bg-dark);
  font-weight: 700;
  padding: 9px 20px;
}
.main-nav .nav-cta:hover {
  background: var(--color-amarillo-dark);
  transform: translateY(-2px);
}

.hamburger {
  display: flex;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background: #fff;
  border-radius: 2px;
  transition: transform var(--transition), opacity var(--transition);
}
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Mobile nav open */
.main-nav.open {
  display: flex;
  flex-direction: column;
  position: fixed;
  top: 68px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg-dark);
  padding: 30px 24px;
  gap: 4px;
  z-index: 899;
}
.main-nav.open a {
  font-size: 1.2rem;
  padding: 14px 18px;
  border-radius: 10px;
  border-bottom: 1px solid rgba(255,255,255,0.06);
}

/* ===== HERO ===== */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding: 100px 0 60px;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 0;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    135deg,
    rgba(10, 22, 40, 0.88) 0%,
    rgba(13, 71, 161, 0.65) 60%,
    rgba(21, 101, 192, 0.35) 100%
  );
}
.hero-content {
  position: relative;
  z-index: 1;
  max-width: 760px;
}
.hero-eyebrow {
  display: inline-block;
  font-family: var(--font-display);
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-amarillo);
  margin-bottom: 18px;
}
.hero-title {
  color: #fff;
  margin-bottom: 20px;
}
.accent-yellow { color: var(--color-amarillo); }
.hero-sub {
  color: rgba(255,255,255,0.82);
  font-size: 1.1rem;
  max-width: 560px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-bottom: 52px;
}
.hero-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 0;
  background: rgba(255,255,255,0.07);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255,255,255,0.12);
  border-radius: var(--radius);
  padding: 20px 0;
  width: fit-content;
}
.stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 0 28px;
}
.stat strong {
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  color: var(--color-amarillo);
}
.stat span {
  font-size: 0.78rem;
  color: rgba(255,255,255,0.65);
  margin-top: 2px;
}
.stat-divider {
  width: 1px;
  background: rgba(255,255,255,0.15);
  align-self: stretch;
}

/* ===== SECTION BASE ===== */
section { padding: 80px 0; }

/* ===== SERVICIOS ===== */
.section-servicios { background: var(--color-surface); }
.servicios-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}
.servicio-card {
  background: var(--color-bg);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}
.servicio-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}
.servicio-card.featured {
  border-color: var(--color-primario);
  box-shadow: 0 0 0 2px rgba(21, 101, 192, 0.15);
}
.servicio-img-wrap {
  height: 220px;
  overflow: hidden;
  border-radius: 0;
}
.servicio-img-wrap img { border-radius: 0; height: 100%; transition: transform 0.4s ease; }
.servicio-card:hover .servicio-img-wrap img { transform: scale(1.05); }
.servicio-body {
  padding: 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.servicio-body h3 { color: var(--color-text); }
.servicio-body p { color: var(--color-text-muted); font-size: 0.95rem; }
.servicio-body ul { display: flex; flex-direction: column; gap: 6px; margin-top: 4px; }
.servicio-body ul li {
  font-size: 0.88rem;
  color: var(--color-text-muted);
  padding-left: 16px;
  position: relative;
}
.servicio-body ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--color-verde-light);
}
.badge {
  display: inline-block;
  background: var(--color-primario);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  width: fit-content;
}

/* ===== SIMULADOR ===== */
.section-simulador {
  background: linear-gradient(160deg, var(--color-bg-dark) 0%, #0d2744 60%, #0a3320 100%);
  position: relative;
  overflow: hidden;
}
.section-simulador::before {
  content: '';
  position: absolute;
  top: -120px;
  right: -120px;
  width: 400px;
  height: 400px;
  background: radial-gradient(circle, rgba(255, 214, 0, 0.08) 0%, transparent 70%);
  pointer-events: none;
}

.simulator-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.1);
  backdrop-filter: blur(20px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  display: grid;
  grid-template-columns: 1fr;
}

/* Inputs col */
.simulator-inputs {
  padding: 32px;
  border-right: none;
  border-bottom: 1px solid rgba(255,255,255,0.08);
  display: flex;
  flex-direction: column;
  gap: 32px;
}
.input-group label {
  display: block;
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.6);
  margin-bottom: 12px;
}
.tarifa-btns {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.tarifa-btn {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  color: rgba(255,255,255,0.7);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 500;
  padding: 10px 16px;
  border-radius: 8px;
  cursor: pointer;
  transition: all var(--transition);
}
.tarifa-btn:hover {
  background: rgba(255,255,255,0.12);
  color: #fff;
}
.tarifa-btn.active {
  background: var(--color-primario);
  border-color: var(--color-primario);
  color: #fff;
  box-shadow: 0 4px 14px rgba(21, 101, 192, 0.4);
}

.slider-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 14px;
}
.slider-value {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--color-amarillo);
}
.slider-limits {
  display: flex;
  justify-content: space-between;
  margin-top: 8px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.35);
}

/* Custom Slider */
.custom-slider {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  height: 6px;
  border-radius: 6px;
  outline: none;
  cursor: pointer;
  transition: background var(--transition);
}
.custom-slider::-webkit-slider-thumb {
  -webkit-appearance: none;
  appearance: none;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-amarillo);
  cursor: pointer;
  box-shadow: 0 0 0 3px rgba(255,214,0,0.25), 0 4px 12px rgba(255,214,0,0.4);
  transition: transform var(--transition), box-shadow var(--transition);
}
.custom-slider::-webkit-slider-thumb:hover {
  transform: scale(1.2);
  box-shadow: 0 0 0 5px rgba(255,214,0,0.3), 0 6px 18px rgba(255,214,0,0.5);
}
.custom-slider::-moz-range-thumb {
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background: var(--color-amarillo);
  cursor: pointer;
  border: none;
  box-shadow: 0 0 0 3px rgba(255,214,0,0.25);
}

/* Results col */
.simulator-results {
  padding: 32px;
  display: flex;
  flex-direction: column;
  gap: 24px;
}
.result-main {
  text-align: center;
  background: rgba(255,255,255,0.05);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius);
  padding: 28px 20px;
}
.result-label {
  display: block;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.5);
  margin-bottom: 8px;
}
.result-big {
  display: block;
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 8vw, 4rem);
  font-weight: 800;
  color: #fff;
  line-height: 1;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.result-currency {
  font-size: 0.82rem;
  color: rgba(255,255,255,0.4);
  margin-top: 4px;
  display: block;
}

.result-secondary-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.result-block {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius);
  padding: 18px 14px;
  text-align: center;
}
.result-med {
  display: block;
  font-family: var(--font-display);
  font-size: 1.7rem;
  font-weight: 800;
  line-height: 1.1;
  margin: 6px 0 2px;
  transition: transform 0.25s ease, opacity 0.25s ease;
}
.result-med.green { color: var(--color-verde-glow); }
.result-med.yellow { color: var(--color-amarillo); }
.result-sub { font-size: 0.72rem; color: rgba(255,255,255,0.35); }

.result-trees {
  background: rgba(46, 125, 50, 0.12);
  border: 1px solid rgba(102, 187, 106, 0.2);
  border-radius: var(--radius);
  padding: 18px;
  text-align: center;
}
.trees-display {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 2px;
  margin: 10px 0 8px;
  min-height: 32px;
}
.tree-icon {
  font-size: 1.2rem;
  transition: transform 0.2s ease;
}
.tree-icon:hover { transform: scale(1.3); }
.tree-more {
  font-family: var(--font-display);
  font-weight: 700;
  color: var(--color-verde-glow);
  font-size: 0.9rem;
  align-self: center;
}
.trees-label {
  font-size: 0.82rem;
  color: var(--color-verde-glow);
  font-weight: 500;
}

/* ===== PROYECTOS ===== */
.section-proyectos { background: var(--color-bg); }
.filter-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-bottom: 36px;
}
.filter-tab {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  color: var(--color-text-muted);
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 9px 20px;
  border-radius: 30px;
  cursor: pointer;
  transition: all var(--transition);
}
.filter-tab:hover { border-color: var(--color-primario); color: var(--color-primario); }
.filter-tab.active {
  background: var(--color-primario);
  border-color: var(--color-primario);
  color: #fff;
}

.proyectos-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 20px;
}
.proyecto-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  overflow: hidden;
  border: 1px solid var(--color-border);
  flex-direction: column;
  transition: transform var(--transition), box-shadow var(--transition), opacity 0.2s ease;
  display: flex;
}
.proyecto-card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-md);
}
.proyecto-img {
  height: 200px;
  position: relative;
  overflow: hidden;
}
.proyecto-img img { border-radius: 0; height: 100%; transition: transform 0.4s ease; }
.proyecto-card:hover .proyecto-img img { transform: scale(1.06); }
.proyecto-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background: var(--color-primario);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: 20px;
  letter-spacing: 0.05em;
}
.proyecto-badge.negocio { background: var(--color-verde); }
.proyecto-badge.industrial { background: #5E35B1; }
.proyecto-info { padding: 20px; }
.proyecto-info h3 { margin-bottom: 4px; font-size: 1.05rem; }
.proyecto-info p { color: var(--color-text-muted); font-size: 0.88rem; margin-bottom: 12px; }
.proyecto-stats {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.proyecto-stats span {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--color-text-muted);
  padding: 4px 12px;
  border-radius: 20px;
}

/* ===== NOSOTROS ===== */
.section-nosotros {
  background: var(--color-surface);
  border-top: 1px solid var(--color-border);
}
.nosotros-layout {
  display: grid;
  grid-template-columns: 1fr;
  gap: 40px;
  align-items: center;
}
.nosotros-img-col {
  border-radius: var(--radius-lg);
  overflow: hidden;
  height: 300px;
}
.nosotros-img-col img { height: 100%; }
.nosotros-text-col .eyebrow { margin-bottom: 12px; }
.nosotros-text-col h2 { margin-bottom: 16px; }
.nosotros-text-col > p {
  color: var(--color-text-muted);
  margin-bottom: 28px;
  font-size: 1.02rem;
}
.trust-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
  margin-bottom: 28px;
}
.trust-item {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.trust-item strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--color-primario);
  font-weight: 800;
}
.trust-item span { font-size: 0.8rem; color: var(--color-text-muted); }

/* ===== CONTACTO ===== */
.section-contacto {
  background: linear-gradient(160deg, var(--color-bg) 0%, #e8f0fe 100%);
}
.contacto-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 32px;
}
.contact-form {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 32px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.form-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 18px;
}
.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.form-group label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--color-text-muted);
  font-family: var(--font-display);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}
.form-group input,
.form-group textarea {
  border: 1.5px solid var(--color-border);
  border-radius: var(--radius);
  padding: 13px 16px;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  resize: vertical;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primario);
  box-shadow: 0 0 0 3px rgba(21, 101, 192, 0.12);
  background: #fff;
}
.form-note {
  font-size: 0.78rem;
  color: var(--color-text-muted);
  text-align: center;
}

.contacto-info-col {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.info-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: 28px;
  border: 1px solid var(--color-border);
  box-shadow: var(--shadow-sm);
}
.info-card h3 {
  font-size: 1.05rem;
  margin-bottom: 20px;
  color: var(--color-primario);
}
.info-item {
  display: flex;
  flex-direction: column;
  gap: 3px;
  margin-bottom: 16px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--color-border);
}
.info-item:last-child { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }
.info-item strong {
  font-size: 0.75rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text-muted);
}
.info-item a, .info-item span {
  font-size: 0.95rem;
  color: var(--color-text);
  font-weight: 500;
}
.info-item a:hover { color: var(--color-primario); }
.map-wrap { border-radius: var(--radius-lg); overflow: hidden; box-shadow: var(--shadow-sm); }
.map-wrap iframe { display: block; border-radius: var(--radius-lg); }

/* ===== FOOTER ===== */
.site-footer {
  background: var(--color-bg-dark);
  padding: 48px 0 28px;
}
.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 24px;
  text-align: center;
}
.footer-brand .logo-text { font-size: 1.2rem; display: block; margin-bottom: 8px; }
.footer-brand p { color: rgba(255,255,255,0.4); font-size: 0.88rem; }
.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 4px 20px;
  justify-content: center;
}
.footer-links a {
  color: rgba(255,255,255,0.5);
  font-size: 0.88rem;
  transition: color var(--transition);
}
.footer-links a:hover { color: var(--color-amarillo); }
.footer-copy {
  color: rgba(255,255,255,0.25);
  font-size: 0.78rem;
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: 20px;
  width: 100%;
  text-align: center;
}

/* ===== WHATSAPP FAB ===== */
.whatsapp-fab {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 800;
  background: #25D366;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px 12px 14px;
  box-shadow: 0 6px 24px rgba(37, 211, 102, 0.45);
  transition: transform var(--transition), box-shadow var(--transition);
}
.whatsapp-fab:hover {
  transform: translateY(-4px) scale(1.04);
  box-shadow: 0 12px 36px rgba(37, 211, 102, 0.6);
}
.wa-icon-img {
  width: 28px;
  height: 28px;
  object-fit: contain;
  border-radius: 0;
  flex-shrink: 0;
}
.wa-label {
  font-family: var(--font-display);
  font-size: 0.82rem;
  font-weight: 700;
  color: #fff;
  white-space: nowrap;
}

/* ===== POP-UP ===== */
.popup-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0,0,0,0.7);
  backdrop-filter: blur(6px);
  z-index: 1000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}
.popup-overlay.visible {
  opacity: 1;
  pointer-events: all;
}
.popup-modal {
  background: var(--color-bg-dark);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: var(--radius-lg);
  padding: 40px 28px 36px;
  max-width: 480px;
  width: 100%;
  position: relative;
  text-align: center;
  box-shadow: var(--shadow-lg);
  transform: translateY(20px);
  transition: transform 0.3s ease;
}
.popup-overlay.visible .popup-modal { transform: translateY(0); }
.popup-close {
  position: absolute;
  top: 14px;
  right: 14px;
  background: rgba(255,255,255,0.08);
  border: none;
  color: rgba(255,255,255,0.6);
  width: 32px;
  height: 32px;
  border-radius: 50%;
  cursor: pointer;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.popup-close:hover { background: rgba(255,255,255,0.15); color: #fff; }
.popup-eyebrow {
  display: inline-block;
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--color-amarillo);
  background: rgba(255,214,0,0.1);
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 14px;
}
.popup-title {
  color: #fff;
  font-size: clamp(1.3rem, 4vw, 1.7rem);
  margin-bottom: 20px;
}
.popup-timer {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 8px;
  margin-bottom: 22px;
}
.time-block {
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.1);
  border-radius: 10px;
  padding: 14px 18px;
  min-width: 72px;
  display: flex;
  flex-direction: column;
  align-items: center;
}
.time-block span {
  font-family: var(--font-display);
  font-size: 2rem;
  font-weight: 800;
  color: var(--color-amarillo);
  line-height: 1;
}
.time-block small {
  font-size: 0.65rem;
  color: rgba(255,255,255,0.4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-top: 4px;
}
.time-sep {
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: rgba(255,214,0,0.5);
  margin-bottom: 8px;
}
.popup-msg {
  color: rgba(255,255,255,0.65);
  font-size: 0.92rem;
  line-height: 1.6;
  margin-bottom: 24px;
}
.popup-msg strong { color: var(--color-amarillo); }
.btn-popup {
  display: block;
  width: 100%;
  background: linear-gradient(135deg, var(--color-amarillo-dark), var(--color-amarillo));
  color: var(--color-bg-dark);
  font-family: var(--font-display);
  font-size: 1rem;
  font-weight: 800;
  padding: 16px;
  border-radius: var(--radius);
  text-align: center;
  transition: transform var(--transition), box-shadow var(--transition);
  box-shadow: 0 6px 24px rgba(249,168,37,0.4);
}
.btn-popup:hover {
  transform: translateY(-3px);
  box-shadow: 0 10px 32px rgba(249,168,37,0.6);
}

/* ===== SCROLL ANIMATIONS ===== */
.fade-up {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== RESPONSIVE — TABLET ===== */
@media (min-width: 640px) {
  .servicios-grid { grid-template-columns: 1fr 1fr; }
  .proyectos-grid { grid-template-columns: 1fr 1fr; }
  .form-row { grid-template-columns: 1fr 1fr; }
  .nosotros-img-col { height: 380px; }
}

/* ===== RESPONSIVE — DESKTOP ===== */
@media (min-width: 900px) {
  .hamburger { display: none; }
  .main-nav {
    display: flex;
    position: static;
    background: transparent;
    flex-direction: row;
    padding: 0;
  }
  .servicios-grid { grid-template-columns: 1fr 1fr 1fr; }
  .proyectos-grid { grid-template-columns: repeat(3, 1fr); }
  .simulator-card { grid-template-columns: 1fr 1fr; }
  .simulator-inputs {
    border-right: 1px solid rgba(255,255,255,0.08);
    border-bottom: none;
  }
  .contacto-grid { grid-template-columns: 1.1fr 0.9fr; }
  .nosotros-layout { grid-template-columns: 1fr 1fr; }
  .nosotros-img-col { height: auto; min-height: 420px; }
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--color-bg); }
::-webkit-scrollbar-thumb { background: var(--color-primario-light); border-radius: 3px; }


/* IMPORTADO DESDE style1.css */
/* ---------- 10. CATÁLOGO ---------- */
.catalog {
  padding: 72px 0;
  background: var(--color-claro);
}

.filters {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 36px;
}

.filter-btn {
  font-family: var(--font-display);
  font-size: 0.85rem;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: 999px;
  border: 2px solid var(--color-borde);
  background: var(--color-blanco);
  color: var(--color-texto-suave);
  transition: all var(--transition);
}

.filter-btn:hover {
  border-color: var(--color-primario);
  color: var(--color-primario);
}

.filter-btn.is-active {
  background: var(--color-primario);
  border-color: var(--color-primario);
  color: var(--color-blanco);
}

.catalog__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
}

.catalog__empty {
  text-align: center;
  color: var(--color-texto-suave);
  margin-top: 24px;
}

.product-card {
  background: var(--color-blanco);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: transform var(--transition), box-shadow var(--transition);
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

.product-card__media {
  position: relative;
  width: 100%;
  height: 200px;
}

.product-card__media img {
  border-radius: 0;
}

.product-card__tag {
  position: absolute;
  top: 14px;
  left: 14px;
  font-family: var(--font-display);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  background: var(--color-secundario);
  color: var(--color-oscuro);
  padding: 5px 12px;
  border-radius: 999px;
}

.product-card__body {
  padding: 22px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-card__body h3 {
  font-family: var(--font-display);
  font-size: 1.2rem;
  margin-bottom: 8px;
  color: var(--color-oscuro);
}

.product-card__body p {
  font-size: 0.9rem;
  color: var(--color-texto-suave);
  margin-bottom: 14px;
}

.product-card__specs {
  margin-bottom: 20px;
  flex-grow: 1;
}

.product-card__specs li {
  font-size: 0.85rem;
  color: var(--color-texto);
  padding-left: 18px;
  position: relative;
  margin-bottom: 6px;
}

.product-card__specs li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 8px;
  width: 8px;
  height: 8px;
  background: var(--color-acento);
  border-radius: 2px;
}

/* ===== CORRECCIÓN CATÁLOGO ===== */

.catalog{
    background:#f4f6f8;
}

.catalog .section-title{
    text-align:center;
    max-width:800px;
    margin:0 auto 15px;
}

.catalog .section-subtitle{
    text-align:center;
    max-width:700px;
    margin:0 auto 40px;
    color:#64748b;
}

.catalog__grid{
    display:grid;
    grid-template-columns:1fr;
    gap:24px;
}

.product-card{
    background:#fff;
    border-radius:20px;
    overflow:hidden;
    display:flex;
    flex-direction:column;
    box-shadow:0 4px 12px rgba(0,0,0,.08);
    height:100%;
}

.product-card__media{
    position:relative;
    height:220px;
    overflow:hidden;
}

.product-card__media img{
    width:100%;
    height:100%;
    object-fit:cover;
    display:block;
}

.product-card__tag{
    position:absolute;
    top:14px;
    left:14px;
    background:#ffc928;
    color:#000;
    font-size:.75rem;
    font-weight:700;
    padding:6px 14px;
    border-radius:999px;
    text-transform:uppercase;
}

.product-card__body{
    padding:22px;
    display:flex;
    flex-direction:column;
    flex-grow:1;
}

.product-card__body h3{
    font-size:1.8rem;
    margin-bottom:10px;
}

.product-card__body p{
    color:#64748b;
    margin-bottom:18px;
}

.product-card__specs{
    margin-bottom:20px;
    flex-grow:1;
}

.product-card__specs li{
    margin-bottom:10px;
    padding-left:18px;
    position:relative;
}

.product-card__specs li:before{
    content:'';
    width:8px;
    height:8px;
    background:#22c55e;
    position:absolute;
    left:0;
    top:8px;
    border-radius:2px;
}

.product-card .btn{
    width:100%;
    margin-top:auto;
}

@media (min-width:768px){
    .catalog__grid{
        grid-template-columns:repeat(2,1fr);
    }
}

@media (min-width:1100px){
    .catalog__grid{
        grid-template-columns:repeat(3,1fr);
    }
}