/* ================================================================
   VARIABLES Y RESET
================================================================ */
@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;900&family=Open+Sans:wght@400;600&display=swap');

:root {
  --primary:    #7a5c2e;
  --accent:     #c0392b;
  --bg:         #1a1a1a;
  --bg2:        #222222;
  --bg3:        #2a2a2a;
  --text:       #f0ece4;
  --muted:      #9a8870;
  --border:     rgba(122, 92, 46, 0.25);
  --radius:     12px;
  --radius-sm:  8px;
  --shadow:     0 8px 32px rgba(0, 0, 0, 0.5);
  --shadow-sm:  0 2px 12px rgba(0, 0, 0, 0.35);
  --font-head:  'Montserrat', sans-serif;
  --font-body:  'Open Sans', 'Segoe UI', sans-serif;
  --transition: 0.2s ease;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  background: var(--bg);
  color: var(--text);
  line-height: 1.65;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

/* ================================================================
   NAVEGACIÓN
================================================================ */
nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(26, 26, 26, 0.96);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2.5rem;
  height: 64px;
  gap: 1rem;
}

.nav-brand {
  font-family: var(--font-head);
  font-size: 1.4rem;
  font-weight: 900;
  letter-spacing: 2px;
  color: var(--primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.nav-brand .accent { color: var(--accent); }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
}
.nav-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.5px;
  text-transform: uppercase;
  transition: color var(--transition);
}
.nav-links a:hover { color: var(--text); }

@media (max-width: 680px) {
  nav { padding: 0 1.25rem; }
  .nav-links { display: none; }
}

/* ================================================================
   BOTONES
================================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.75rem 1.75rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-head);
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  cursor: pointer;
  text-decoration: none;
  border: 2px solid transparent;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition);
}
.btn:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}
.btn:active { transform: translateY(0); }

.btn-wp      { background: #25d366; color: #fff; }
.btn-wp:hover { background: #1db954; }

.btn-outline {
  background: transparent;
  color: var(--text);
  border-color: rgba(255,255,255,0.25);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.07);
  border-color: rgba(255,255,255,0.4);
}

/* ================================================================
   HERO
================================================================ */
.hero {
  min-height: calc(100vh - 64px);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 4rem 1.5rem;
  position: relative;
  overflow: hidden;
  background:
    radial-gradient(ellipse at 60% 0%, rgba(192,57,43,0.12) 0%, transparent 60%),
    radial-gradient(ellipse at 20% 80%, rgba(122,92,46,0.15) 0%, transparent 55%),
    var(--bg);
}

/* Grid pattern sutil de fondo */
.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(122,92,46,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(122,92,46,0.04) 1px, transparent 1px);
  background-size: 48px 48px;
  pointer-events: none;
}

.hero-logo {
  width: 110px;
  height: 110px;
  border-radius: 50%;
  border: 3px solid var(--primary);
  background: var(--bg2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-head);
  font-size: 3rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: -4px;
  box-shadow: 0 0 0 6px rgba(122,92,46,0.1), var(--shadow);
  margin-bottom: 2rem;
  position: relative;
  z-index: 1;
}
.hero-logo .accent { color: var(--accent); }

.hero-eyebrow {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.75rem;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-family: var(--font-head);
  font-size: clamp(2.2rem, 6vw, 4rem);
  font-weight: 900;
  line-height: 1.1;
  letter-spacing: -1px;
  position: relative;
  z-index: 1;
  max-width: 700px;
}
.hero h1 em {
  font-style: normal;
  color: var(--primary);
}

.hero-sub {
  margin-top: 1rem;
  font-size: clamp(0.95rem, 2vw, 1.1rem);
  color: var(--muted);
  max-width: 480px;
  position: relative;
  z-index: 1;
  line-height: 1.7;
}

.hero-btns {
  margin-top: 2.5rem;
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 1;
}

.hero-badges {
  margin-top: 3rem;
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
  position: relative;
  z-index: 1;
}
.hero-badge {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
}
.hero-badge strong {
  font-family: var(--font-head);
  font-size: 1.6rem;
  font-weight: 900;
  color: var(--primary);
}
.hero-badge span {
  font-size: 0.72rem;
  color: var(--muted);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ================================================================
   SECCIONES GENÉRICAS
================================================================ */
section { padding: 5.5rem 1.5rem; }

.container {
  max-width: 1040px;
  margin: 0 auto;
}

.section-header {
  text-align: center;
  margin-bottom: 3.5rem;
}
.section-eyebrow {
  display: inline-block;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--primary);
  margin-bottom: 0.6rem;
}
.section-title {
  font-family: var(--font-head);
  font-size: clamp(1.6rem, 4vw, 2.4rem);
  font-weight: 900;
  letter-spacing: -0.5px;
  line-height: 1.15;
}
.section-title em { font-style: normal; color: var(--primary); }
.section-sub {
  margin-top: 0.75rem;
  color: var(--muted);
  font-size: 1rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

/* ================================================================
   SERVICIOS
================================================================ */
#servicios { background: var(--bg2); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.25rem;
}

.service-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  text-align: center;
  border: 1px solid var(--border);
  transition: border-color var(--transition), transform var(--transition), box-shadow var(--transition);
  position: relative;
  overflow: hidden;
}
.service-card::after {
  content: "";
  position: absolute;
  bottom: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent));
  transform: scaleX(0);
  transition: transform var(--transition);
  transform-origin: left;
}
.service-card:hover {
  border-color: rgba(122,92,46,0.5);
  transform: translateY(-4px);
  box-shadow: var(--shadow-sm);
}
.service-card:hover::after { transform: scaleX(1); }

.service-icon {
  font-size: 2.25rem;
  margin-bottom: 1rem;
  display: block;
}
.service-card h3 {
  font-family: var(--font-head);
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 0.5rem;
}
.service-card p {
  font-size: 0.875rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ================================================================
   GALERÍA ANTES / DESPUÉS
================================================================ */
#trabajos { background: var(--bg); }

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.gallery-item h3 {
  font-family: var(--font-head);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: 0.75rem;
  text-align: center;
}

.ad-slider {
  position: relative;
  width: 100%;
  aspect-ratio: 4 / 3;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: ew-resize;
  user-select: none;
  box-shadow: var(--shadow);
  border: 1px solid var(--border);
  touch-action: pan-y;
}

.ad-after, .ad-before {
  position: absolute;
  inset: 0;
  background-size: cover;
  background-position: center;
}
.ad-after  { background-color: #1e2d1e; }
.ad-before { background-color: #2d1e1e; clip-path: inset(0 50% 0 0); }

.ad-placeholder {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  pointer-events: none;
}
.ad-placeholder .ph-icon { font-size: 2rem; opacity: 0.4; }
.ad-placeholder p {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.3);
  text-align: center;
  padding: 0 1rem;
  line-height: 1.5;
}

.ad-label {
  position: absolute;
  top: 0.75rem;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(4px);
  color: #fff;
  font-family: var(--font-head);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 4px 10px;
  border-radius: 20px;
  pointer-events: none;
  z-index: 3;
}
.ad-label-before { left: 0.75rem; }
.ad-label-after  { right: 0.75rem; }

.ad-handle {
  position: absolute;
  top: 0; bottom: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 2px;
  background: rgba(255,255,255,0.9);
  z-index: 4;
  pointer-events: none;
}
.ad-handle-btn {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 42px;
  height: 42px;
  background: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 2px 12px rgba(0,0,0,0.5);
  color: #333;
  font-size: 1rem;
  line-height: 1;
  letter-spacing: -1px;
  font-weight: 700;
}

/* ================================================================
   POR QUÉ ELEGIRNOS
================================================================ */
#nosotros { background: var(--bg2); }

.why-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.why-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 1.75rem;
  border: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  transition: border-color var(--transition), transform var(--transition);
}
.why-card:hover {
  border-color: rgba(122,92,46,0.5);
  transform: translateY(-3px);
}
.why-icon {
  font-size: 1.6rem;
  width: 48px; height: 48px;
  background: rgba(122,92,46,0.12);
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
}
.why-card h4 {
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}
.why-card p {
  font-size: 0.85rem;
  color: var(--muted);
  line-height: 1.6;
}

/* ================================================================
   FORMULARIO
================================================================ */
#contacto { background: var(--bg); }

.form-card {
  background: var(--bg2);
  border-radius: var(--radius);
  padding: 2.5rem 2.25rem;
  max-width: 700px;
  margin: 0 auto;
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}
@media (max-width: 560px) {
  .form-row { grid-template-columns: 1fr; }
  .form-card { padding: 1.75rem 1.25rem; }
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}

label {
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--muted);
}

input, select, textarea {
  background: var(--bg3);
  border: 1.5px solid rgba(122,92,46,0.2);
  border-radius: var(--radius-sm);
  padding: 0.7rem 1rem;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  outline: none;
  width: 100%;
  -webkit-appearance: none;
}
input::placeholder, textarea::placeholder { color: rgba(255,255,255,0.2); }
input:focus, select:focus, textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(122,92,46,0.15);
}
textarea { resize: vertical; min-height: 100px; }
select { cursor: pointer; }
select option { background: var(--bg3); }

.form-submit {
  width: 100%;
  margin-top: 0.5rem;
  padding: 1rem;
  font-size: 0.95rem;
  border-radius: var(--radius-sm);
}

.form-note {
  text-align: center;
  margin-top: 1rem;
  font-size: 0.8rem;
  color: var(--muted);
  opacity: 0.8;
}

/* ================================================================
   BOTÓN FLOTANTE WHATSAPP
================================================================ */
.wp-float {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  z-index: 200;
  background: #25d366;
  width: 58px;
  height: 58px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  box-shadow: 0 4px 20px rgba(37, 211, 102, 0.45);
  animation: wpPulse 2.5s infinite;
  transition: transform var(--transition);
}
.wp-float:hover { transform: scale(1.1); }

@keyframes wpPulse {
  0%, 100% { box-shadow: 0 4px 20px rgba(37,211,102,0.45); }
  50%       { box-shadow: 0 4px 36px rgba(37,211,102,0.75); }
}

/* ================================================================
   FOOTER
================================================================ */
footer {
  background: #0f0f0f;
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 2.5rem 1rem;
  font-size: 0.875rem;
  color: var(--muted);
}
.footer-brand {
  font-family: var(--font-head);
  font-size: 1.2rem;
  font-weight: 900;
  color: var(--primary);
  letter-spacing: 2px;
  margin-bottom: 0.5rem;
}
.footer-brand .accent { color: var(--accent); }
footer a { color: var(--primary); text-decoration: none; }
footer a:hover { text-decoration: underline; }
.footer-copy {
  margin-top: 1rem;
  font-size: 0.75rem;
  opacity: 0.4;
}