/* ==========================================================================
   VARIABLES Y TOKENS DE DISEÑO (DARK LUXURY / HERRERÍA PREMIUM)
   ========================================================================== */
:root {
  --bg-main: #0a0c10;
  --bg-card: #12161f;
  --bg-card-hover: #181e2b;
  --bg-surface: #1c2230;
  --bg-surface-light: #262e40;
  --accent: #f59e0b;
  --accent-gradient: linear-gradient(135deg, #f59e0b 0%, #ea580c 100%);
  --accent-glow: rgba(245, 158, 11, 0.35);
  --accent-subtle: rgba(245, 158, 11, 0.12);
  --text: #f9fafb;
  --text-muted: #9ca3af;
  --text-dim: #6b7280;
  --border: #242c3d;
  --border-accent: rgba(245, 158, 11, 0.4);
  --font-heading: 'Montserrat', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 20px;
  --radius-pill: 9999px;
  --shadow-card: 0 10px 30px -10px rgba(0, 0, 0, 0.6);
  --shadow-glow: 0 0 25px rgba(245, 158, 11, 0.25);
  --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ==========================================================================
   RESET & BASE STYLES (MOBILE-FIRST)
   ========================================================================== */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  -webkit-tap-highlight-color: transparent;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  background-color: var(--bg-main);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: inherit;
  text-decoration: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: 1rem;
}

/* ==========================================================================
   UTILIDADES & LAYOUT GENERAL
   ========================================================================== */
.container {
  width: 100%;
  padding-left: 1.25rem;
  padding-right: 1.25rem;
  margin-left: auto;
  margin-right: auto;
}

@media (min-width: 640px) {
  .container { max-width: 600px; padding-left: 1.5rem; padding-right: 1.5rem; }
}
@media (min-width: 768px) {
  .container { max-width: 720px; }
}
@media (min-width: 1024px) {
  .container { max-width: 980px; }
}
@media (min-width: 1280px) {
  .container { max-width: 1200px; }
}

section {
  padding: 3.5rem 0;
  position: relative;
}

@media (min-width: 768px) {
  section { padding: 5.5rem 0; }
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.badge-label {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.9rem;
  background: var(--accent-subtle);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.2px;
  text-transform: uppercase;
  border-radius: var(--radius-pill);
  margin-bottom: 0.75rem;
}

.section-title {
  font-family: var(--font-heading);
  font-size: 1.85rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: -0.5px;
  line-height: 1.2;
  color: #fff;
}

@media (min-width: 768px) {
  .section-title { font-size: 2.4rem; }
}

.section-title span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.section-desc {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-top: 0.75rem;
  max-width: 620px;
  margin-left: auto;
  margin-right: auto;
}

/* Botones */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.6rem;
  padding: 0.85rem 1.6rem;
  font-family: var(--font-heading);
  font-size: 0.9rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.5px;
  border-radius: var(--radius-sm);
  border: none;
  cursor: pointer;
  transition: var(--transition);
  min-height: 48px;
  touch-action: manipulation;
}

.btn-primary {
  background: var(--accent-gradient);
  color: #000;
  box-shadow: 0 4px 15px rgba(245, 158, 11, 0.3);
}

.btn-primary:hover, .btn-primary:active {
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(245, 158, 11, 0.45);
}

.btn-outline {
  background: rgba(255, 255, 255, 0.04);
  color: #fff;
  border: 1px solid var(--border);
}

.btn-outline:hover, .btn-outline:active {
  background: var(--bg-surface-light);
  border-color: var(--accent);
  color: var(--accent);
}

.btn-whatsapp {
  background: #25d366;
  color: #0b2212;
  font-weight: 800;
}

.btn-whatsapp:hover, .btn-whatsapp:active {
  background: #20bd5a;
  transform: translateY(-2px);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.35);
}

/* ==========================================================================
   HEADER & NAVEGACIÓN MOBILE-FIRST
   ========================================================================== */
.header {
  background: rgba(10, 12, 16, 0.95);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 1000;
  padding: 0.5rem 0;
  transition: var(--transition);
}

.header-nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.brand-logo {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
}

.brand-logo-img {
  width: 92px;
  height: 92px;
  border-radius: var(--radius-pill);
  object-fit: contain;
  filter: invert(1);
  mix-blend-mode: screen;
  flex-shrink: 0;
  transition: transform 0.3s ease;
}

@media (min-width: 768px) {
  .header {
    padding: 0.6rem 0;
  }
  .brand-logo-img {
    width: 125px;
    height: 125px;
  }
}

.brand-logo:hover .brand-logo-img {
  transform: scale(1.06) rotate(2deg);
}

/* Links Desktop vs Toggle Mobile */
.nav-links {
  display: none;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-menu-btn {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: #fff;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
}

@media (min-width: 960px) {
  .mobile-menu-btn { display: none; }
  .nav-links {
    display: flex;
    align-items: center;
    gap: 1.5rem;
  }
  .nav-links a {
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-muted);
    transition: color 0.2s;
    text-transform: uppercase;
    letter-spacing: 0.5px;
  }
  .nav-links a:hover {
    color: var(--accent);
  }
}

/* Drawer de Navegación Mobile */
.mobile-drawer {
  position: fixed;
  top: 100%;
  left: 0;
  width: 100%;
  background: var(--bg-card);
  border-bottom: 2px solid var(--border-accent);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
  transform: translateY(-10px);
  opacity: 0;
  visibility: hidden;
  pointer-events: none;
  transition: all 0.25s ease;
  z-index: 999;
  box-shadow: 0 15px 30px rgba(0,0,0,0.7);
}

.mobile-drawer.open {
  transform: translateY(0);
  opacity: 1;
  visibility: visible;
  pointer-events: auto;
}

@media (min-width: 960px) {
  .mobile-drawer {
    display: none !important;
  }
}

.mobile-drawer a {
  font-family: var(--font-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text);
  padding: 0.6rem 0;
  border-bottom: 1px solid var(--border);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.mobile-drawer a:hover {
  color: var(--accent);
}

/* ==========================================================================
   HERO SECTION (SHOWCASE DE IMPACTO)
   ========================================================================== */
.hero {
  padding: 2.5rem 0 3.5rem;
  background: radial-gradient(circle at 50% 10%, rgba(245, 158, 11, 0.08) 0%, transparent 60%);
  border-bottom: 1px solid var(--border);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 960px) {
  .hero { padding: 4.5rem 0 5.5rem; }
  .hero-grid {
    grid-template-columns: 1.1fr 1fr;
    gap: 3.5rem;
  }
}

.hero-content {
  text-align: left;
}

.hero-pretitle {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: rgba(245, 158, 11, 0.12);
  border: 1px solid var(--border-accent);
  padding: 0.35rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--accent);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 1rem;
}

.hero-title {
  font-family: var(--font-heading);
  font-size: 2.3rem;
  font-weight: 900;
  text-transform: uppercase;
  line-height: 1.1;
  letter-spacing: -0.5px;
  margin-bottom: 1.2rem;
  color: #fff;
}

@media (min-width: 640px) {
  .hero-title { font-size: 3rem; }
}
@media (min-width: 1024px) {
  .hero-title { font-size: 3.6rem; }
}

.hero-title span {
  background: var(--accent-gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  display: block;
}

.hero-lead {
  font-size: 1rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 1.8rem;
}

@media (min-width: 768px) {
  .hero-lead { font-size: 1.1rem; }
}

.hero-badges-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
  margin-bottom: 2rem;
}

.hero-badge-pill {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 0.75rem;
  font-weight: 600;
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-pill);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
}

.hero-ctas {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

@media (min-width: 480px) {
  .hero-ctas {
    flex-direction: row;
    align-items: center;
  }
}

/* Imagen Hero / Card Showcase */
.hero-visual {
  position: relative;
}

.hero-card {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  border: 1px solid var(--border-accent);
  background: var(--bg-card);
  box-shadow: 0 20px 40px -15px rgba(0, 0, 0, 0.8), var(--shadow-glow);
}

.hero-img {
  width: 100%;
  height: 380px;
  object-fit: cover;
  object-position: center top;
  transition: transform 0.6s ease;
}

@media (min-width: 768px) {
  .hero-img { height: 480px; }
}

.hero-card:hover .hero-img {
  transform: scale(1.02);
}

.hero-overlay-tag {
  position: absolute;
  bottom: 1.2rem;
  left: 1.2rem;
  right: 1.2rem;
  background: rgba(10, 12, 16, 0.88);
  backdrop-filter: blur(10px);
  border: 1px solid var(--border);
  padding: 1rem;
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.overlay-title {
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 800;
  color: #fff;
  text-transform: uppercase;
}

.overlay-subtitle {
  font-size: 0.75rem;
  color: var(--accent);
  font-weight: 600;
}

.origin-badge {
  font-size: 0.72rem;
  background: var(--bg-surface);
  padding: 0.3rem 0.6rem;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  border: 1px solid var(--border);
}

/* ==========================================================================
   PILARES & CARACTERÍSTICAS
   ========================================================================== */
.pillars-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
}

@media (min-width: 640px) {
  .pillars-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .pillars-grid { grid-template-columns: repeat(4, 1fr); }
}

.pillar-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.8rem 1.4rem;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  position: relative;
  overflow: hidden;
}

.pillar-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 3px;
  background: var(--accent-gradient);
  opacity: 0;
  transition: opacity 0.3s ease;
}

.pillar-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-accent);
  background: var(--bg-card-hover);
}

.pillar-card:hover::before {
  opacity: 1;
}

.pillar-icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-sm);
  background: var(--accent-subtle);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1.2rem;
  font-size: 1.4rem;
}

.pillar-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.6rem;
  text-transform: uppercase;
}

.pillar-desc {
  font-size: 0.88rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* ==========================================================================
   INGENIERÍA & ANATOMÍA TÉCNICA (DESPIECE EXCLUSIVO)
   ========================================================================== */
.tech-section {
  background: #0d1017;
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.tech-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2.5rem;
  align-items: center;
}

@media (min-width: 960px) {
  .tech-grid {
    grid-template-columns: 1fr 1.15fr;
    gap: 3.5rem;
  }
}

.tech-visual-container {
  position: relative;
}

.tech-visual-card {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-card);
}

.tech-img {
  width: 100%;
  height: auto;
  display: block;
  border-bottom: 1px solid var(--border);
}

.tech-visual-footer {
  padding: 1rem 1.25rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--bg-surface);
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text);
}

.tech-points-list {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.85rem;
}

@media (min-width: 640px) {
  .tech-points-list { grid-template-columns: repeat(2, 1fr); }
}

.tech-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 1rem;
  display: flex;
  gap: 0.8rem;
  transition: var(--transition);
}

.tech-item:hover {
  border-color: var(--accent);
  background: var(--bg-card-hover);
  transform: translateX(4px);
}

.tech-num {
  width: 28px;
  height: 28px;
  border-radius: var(--radius-pill);
  background: var(--accent-subtle);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  font-family: var(--font-heading);
  font-weight: 900;
  font-size: 0.82rem;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  margin-top: 2px;
}

.tech-info h4 {
  font-family: var(--font-heading);
  font-size: 0.92rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.2rem;
  text-transform: uppercase;
}

.tech-info p {
  font-size: 0.8rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* ==========================================================================
   GALERÍA DE MODELOS Y TRABAJOS
   ========================================================================== */
.gallery-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 640px) {
  .gallery-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1024px) {
  .gallery-grid { grid-template-columns: repeat(3, 1fr); }
}

.gallery-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

.gallery-card:hover {
  transform: translateY(-5px);
  border-color: var(--border-accent);
  box-shadow: 0 15px 35px -10px rgba(0,0,0,0.8), var(--shadow-glow);
}

.gallery-thumb-wrap {
  position: relative;
  height: 240px;
  overflow: hidden;
  background: #000;
}

.gallery-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-card:hover .gallery-thumb {
  transform: scale(1.05);
}

.gallery-badge {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: rgba(10, 12, 16, 0.85);
  border: 1px solid var(--border-accent);
  color: var(--accent);
  padding: 0.25rem 0.65rem;
  border-radius: var(--radius-pill);
  font-size: 0.7rem;
  font-weight: 700;
  text-transform: uppercase;
  backdrop-filter: blur(4px);
}

.gallery-body {
  padding: 1.4rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.gallery-title {
  font-family: var(--font-heading);
  font-size: 1.15rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.4rem;
}

.gallery-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.2rem;
  flex-grow: 1;
}

.gallery-specs-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.78rem;
  color: #d1d5db;
  border-top: 1px solid var(--border);
  padding-top: 0.8rem;
  margin-bottom: 1.2rem;
}

.gallery-specs-list li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.gallery-specs-list li::before {
  content: "•";
  color: var(--accent);
  font-weight: bold;
}

/* ==========================================================================
   COTIZADOR INTELIGENTE MOBILE-FIRST (DIRECTO A WHATSAPP)
   ========================================================================== */
.quote-section {
  background: radial-gradient(circle at 50% 50%, rgba(245, 158, 11, 0.06) 0%, transparent 70%);
}

.quote-box {
  background: var(--bg-card);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-lg);
  padding: 1.8rem 1.2rem;
  box-shadow: var(--shadow-card);
  max-width: 800px;
  margin: 0 auto;
}

@media (min-width: 768px) {
  .quote-box { padding: 3rem 2.5rem; }
}

.form-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  margin-top: 1.8rem;
}

@media (min-width: 640px) {
  .form-grid { grid-template-columns: repeat(2, 1fr); }
  .form-full { grid-column: span 2; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.82rem;
  font-weight: 700;
  color: #e5e7eb;
  text-transform: uppercase;
  letter-spacing: 0.5px;
}

.form-control {
  background: var(--bg-surface);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.85rem 1rem;
  color: #fff;
  font-size: 0.95rem;
  transition: border-color 0.2s;
  outline: none;
  width: 100%;
  min-height: 48px;
}

.form-control:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(245, 158, 11, 0.15);
}

select.form-control {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23f59e0b' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14 2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 14px;
  padding-right: 2.5rem;
}

textarea.form-control {
  min-height: 100px;
  resize: vertical;
}

.quote-action-btn {
  width: 100%;
  padding: 1.1rem;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  margin-top: 0.5rem;
}

.quote-help-text {
  text-align: center;
  font-size: 0.78rem;
  color: var(--text-muted);
  margin-top: 0.85rem;
}

/* ==========================================================================
   CONTACTO & DATOS OFICIALES
   ========================================================================== */
.contact-cards-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.2rem;
  margin-top: 2rem;
}

@media (min-width: 640px) {
  .contact-cards-grid { grid-template-columns: repeat(3, 1fr); }
}

.contact-item-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 1.8rem 1.4rem;
  text-align: center;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-item-card:hover {
  border-color: var(--accent);
  transform: translateY(-3px);
}

.contact-card-icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-pill);
  background: var(--bg-surface);
  border: 1px solid var(--border-accent);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  margin-bottom: 1rem;
}

.contact-item-card h4 {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 800;
  color: #fff;
  margin-bottom: 0.4rem;
  text-transform: uppercase;
}

.contact-item-card p {
  font-size: 0.88rem;
  color: var(--text-muted);
  margin-bottom: 1rem;
}

.contact-link-btn {
  margin-top: auto;
  font-size: 0.82rem;
  font-weight: 700;
  color: var(--accent);
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  transition: gap 0.2s;
}

.contact-link-btn:hover {
  gap: 0.7rem;
  text-decoration: underline;
}

/* ==========================================================================
   FOOTER
   ========================================================================== */
.footer {
  background: #06070a;
  border-top: 1px solid var(--border);
  padding: 3rem 0 2rem;
  margin-top: auto;
  text-align: center;
}

.footer-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-links a:hover {
  color: var(--accent);
}

.footer-copy {
  font-size: 0.8rem;
  color: var(--text-dim);
  border-top: 1px solid rgba(255,255,255,0.06);
  width: 100%;
  padding-top: 1.5rem;
}

/* ==========================================================================
   FLOATING WHATSAPP BUTTON (FAB)
   ========================================================================== */
.floating-wa-btn {
  position: fixed;
  bottom: 1.5rem;
  right: 1.25rem;
  z-index: 1050;
  background: #25d366;
  color: #fff;
  width: 58px;
  height: 58px;
  border-radius: var(--radius-pill);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.5);
  transition: var(--transition);
  text-decoration: none;
}

.floating-wa-btn:hover, .floating-wa-btn:active {
  transform: scale(1.1);
  box-shadow: 0 12px 30px rgba(37, 211, 102, 0.7);
}

.floating-wa-tooltip {
  position: absolute;
  right: 70px;
  background: var(--bg-card);
  color: #fff;
  border: 1px solid var(--border-accent);
  padding: 0.4rem 0.8rem;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
  box-shadow: var(--shadow-card);
}

.floating-wa-btn:hover .floating-wa-tooltip {
  opacity: 1;
}

@media (max-width: 480px) {
  .floating-wa-tooltip { display: none; }
}