/* ============================================================
   VARIABLES
   ============================================================ */
:root {
  --c-primary:        #a88d01;
  --c-primary-light:  #c4a801;
  --c-primary-pale:   #f5edd8;
  --c-primary-hover:  #8a7301;
  --c-accent:         #8B7BAB;
  --c-accent-pale:    #F0EDF6;
  --c-warm-white:     #FAFAF8;
  --c-beige:          #F5EFE6;
  --c-text-dark:      #2C2808;
  --c-text-mid:       #5a5020;
  --c-text-light:     #9a8f60;
  --c-border:         #e2d9b0;
  --c-white:          #FFFFFF;

  --f-heading: 'Playfair Display', Georgia, serif;
  --f-body:    'Lato', 'Helvetica Neue', Arial, sans-serif;

  --shadow-sm: 0 2px 8px  rgba(60,50,10,.06);
  --shadow-md: 0 4px 20px rgba(60,50,10,.10);
  --shadow-lg: 0 8px 40px rgba(60,50,10,.14);

  --r-sm: 8px;
  --r-md: 16px;
  --r-lg: 24px;

  --ease: 0.3s ease;

  --max-w:   1140px;
  --pad-x:   24px;
  --sec-pad: 96px 0;
}

/* ============================================================
   RESET & BASE
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; }

body {
  font-family: var(--f-body);
  color: var(--c-text-dark);
  background: var(--c-warm-white);
  line-height: 1.7;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; display: block; }
a   { color: inherit; text-decoration: none; }
ul  { list-style: none; }

/* ============================================================
   TYPOGRAPHY
   ============================================================ */
h1, h2, h3, h4 {
  font-family: var(--f-heading);
  line-height: 1.25;
  color: var(--c-text-dark);
}

h1 { font-size: clamp(2rem,   4vw, 3.25rem); font-weight: 700; }
h2 { font-size: clamp(1.75rem,3vw, 2.5rem);  font-weight: 600; }
h3 { font-size: 1.2rem; font-weight: 600; }

p { color: var(--c-text-mid); }

/* ============================================================
   LAYOUT — CONTAINER & SECTION
   ============================================================ */
.container {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 var(--pad-x);
}

.section { padding: var(--sec-pad); }

.section-header {
  text-align: center;
  max-width: 640px;
  margin: 0 auto 64px;
}
.section-header h2 { margin: 12px 0 16px; }

.section-tag {
  display: inline-block;
  font-family: var(--f-body);
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-primary);
  background: var(--c-primary-pale);
  padding: 4px 14px;
  border-radius: 100px;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn-primary,
.btn-secondary {
  display: inline-block;
  padding: 14px 32px;
  border-radius: var(--r-sm);
  font-family: var(--f-body);
  font-size: .95rem;
  font-weight: 700;
  letter-spacing: .02em;
  cursor: pointer;
  border: 2px solid transparent;
  transition: background var(--ease), color var(--ease), transform var(--ease), box-shadow var(--ease);
}

.btn-primary {
  background: var(--c-primary);
  color: var(--c-white);
}
.btn-primary:hover {
  background: var(--c-primary-hover);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn-secondary {
  background: transparent;
  color: var(--c-primary);
  border-color: var(--c-primary);
}
.btn-secondary:hover {
  background: var(--c-primary);
  color: var(--c-white);
  transform: translateY(-2px);
}

.btn-full { width: 100%; text-align: center; }

/* ============================================================
   HEADER & NAV
   ============================================================ */
#header {
  position: fixed;
  inset-inline: 0;
  top: 0;
  z-index: 100;
  background: rgba(250,250,248,.93);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--ease), box-shadow var(--ease);
}
#header.scrolled {
  border-color: var(--c-border);
  box-shadow: var(--shadow-sm);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.logo {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 12px;
  line-height: 1.2;
  transition: opacity var(--ease);
}
.logo:hover { opacity: .8; }

.logo-img {
  width: 40px;
  height: 40px;
  object-fit: cover;
  border-radius: 10px;
  flex-shrink: 0;
  box-shadow: 0 2px 10px rgba(60,50,10,.18);
}

.logo > div {
  display: flex;
  flex-direction: column;
}

.logo-name {
  font-family: var(--f-heading);
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--c-text-dark);
}
.logo-subtitle {
  font-size: .7rem;
  color: var(--c-primary);
  letter-spacing: .04em;
}

#mainNav ul {
  display: flex;
  align-items: center;
  gap: 4px;
}
#mainNav ul li a {
  font-size: .88rem;
  font-weight: 400;
  color: var(--c-text-mid);
  padding: 8px 14px;
  border-radius: var(--r-sm);
  transition: color var(--ease), background var(--ease);
}
#mainNav ul li a:hover,
#mainNav ul li a.active {
  color: var(--c-primary);
  background: var(--c-primary-pale);
}
#mainNav ul li a.active { font-weight: 700; }

.btn-nav {
  background: var(--c-primary) !important;
  color: var(--c-white) !important;
  padding: 9px 20px !important;
  font-weight: 700 !important;
}
.btn-nav:hover {
  background: var(--c-primary-hover) !important;
}

/* hamburger */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
}
.menu-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--c-text-dark);
  border-radius: 2px;
  transition: transform var(--ease), opacity var(--ease);
}

/* ============================================================
   HERO
   ============================================================ */
.hero {
  position: relative;
  padding: 160px 0 100px;
  background: linear-gradient(135deg, var(--c-primary-pale) 0%, var(--c-beige) 60%, var(--c-accent-pale) 100%);
  min-height: 88vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image: url('/images/fondo.png');
  background-size: cover;
  background-position: center;
  opacity: 0.7;
  z-index: 0;
}

.hero-decor {
  position: absolute;
  right: -80px;
  top: 50%;
  transform: translateY(-50%);
  width: 520px;
  height: 520px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,123,171,.14) 0%, transparent 70%);
  pointer-events: none;
}

.hero-content { position: relative; max-width: 700px; z-index: 1; }

.hero-tag {
  display: inline-block;
  font-size: .8rem;
  font-weight: 700;
  letter-spacing: .12em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 20px;
}

.hero h1 { color: var(--c-text-dark); margin-bottom: 20px; }

.hero-desc {
  font-size: 1.12rem;
  color: var(--c-text-mid);
  max-width: 520px;
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero-actions { display: flex; gap: 16px; flex-wrap: wrap; }

.hero-wave {
  position: absolute;
  bottom: -1px;
  left: 0;
  right: 0;
  z-index: 1;
}
.hero-wave svg { width: 100%; height: auto; display: block; }

/* ============================================================
   SOBRE MÍ
   ============================================================ */
.section-about { background: var(--c-warm-white); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 80px;
  align-items: center;
}

.photo-placeholder {
  width: 100%;
  aspect-ratio: 4/5;
  background: linear-gradient(145deg, var(--c-primary-pale), var(--c-beige));
  border-radius: var(--r-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-lg);
  color: var(--c-text-light);
  font-size: .82rem;
  letter-spacing: .08em;
  text-transform: uppercase;
}

.photo-real {
  width: 100%;
  aspect-ratio: 4/5;
  object-fit: cover;
  object-position: top center;
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-lg);
}

.about-text .section-tag { margin-bottom: 16px; }
.about-text h2 { margin-bottom: 24px; }

.about-intro {
  font-size: 1.02rem;
  margin-bottom: 16px;
  line-height: 1.8;
}
.about-text p { margin-bottom: 32px; line-height: 1.8; }

.credentials { display: flex; flex-direction: column; gap: 12px; }

.credential-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: .9rem;
  color: var(--c-text-mid);
}
.credential-icon {
  width: 36px;
  height: 36px;
  min-width: 36px;
  background: var(--c-primary-pale);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
}

/* ============================================================
   SERVICIOS
   ============================================================ */
.section-services { background: var(--c-beige); }

.services-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
}

.service-card {
  background: var(--c-white);
  border-radius: var(--r-md);
  padding: 40px 36px;
  border: 1px solid var(--c-border);
  box-shadow: var(--shadow-sm);
  transition: transform var(--ease), box-shadow var(--ease);
}
.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-lg);
}

.service-icon {
  width: 56px;
  height: 56px;
  background: var(--c-primary-pale);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  color: var(--c-primary);
}
.service-icon svg { width: 28px; height: 28px; }

.service-card h3 { margin-bottom: 12px; }
.service-card p  { font-size: .92rem; line-height: 1.7; }

/* ============================================================
   CÓMO TRABAJO
   ============================================================ */
.section-approach { background: var(--c-warm-white); }

.steps-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step-item {
  background: var(--c-white);
  border-radius: var(--r-md);
  border: 1px solid var(--c-border);
  padding: 40px 24px 36px;
  text-align: center;
}

.step-number {
  display: block;
  font-family: var(--f-heading);
  font-size: 2.4rem;
  font-weight: 700;
  letter-spacing: .04em;
  color: rgba(168,141,1,.22);
  line-height: 1;
  margin-bottom: 16px;
}

.step-item h3 { margin-bottom: 12px; font-size: 1.05rem; }
.step-item p  { font-size: .9rem; line-height: 1.7; }

/* ============================================================
   CONTACTO
   ============================================================ */
.section-contact {
  background: linear-gradient(135deg, var(--c-accent-pale) 0%, var(--c-primary-pale) 100%);
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 80px;
  align-items: start;
}

.contact-info .section-tag { margin-bottom: 16px; }
.contact-info h2            { margin-bottom: 16px; }
.contact-info > p           { margin-bottom: 40px; font-size: 1.02rem; }

.contact-details { display: flex; flex-direction: column; gap: 20px; }

.contact-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
}

.contact-icon {
  width: 44px;
  height: 44px;
  min-width: 44px;
  background: var(--c-white);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: var(--shadow-sm);
  color: var(--c-primary);
}
.contact-icon svg { width: 20px; height: 20px; }

.contact-item > div {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.contact-item strong {
  font-size: .78rem;
  font-weight: 700;
  letter-spacing: .06em;
  text-transform: uppercase;
  color: var(--c-text-dark);
}
.contact-item span,
.contact-item a {
  font-size: .93rem;
  color: var(--c-text-mid);
  transition: color var(--ease);
}
.contact-item a:hover { color: var(--c-primary); }

/* form wrapper */
.contact-form-wrap {
  background: var(--c-white);
  border-radius: var(--r-lg);
  padding: 48px 44px;
  box-shadow: var(--shadow-lg);
}

.contact-form { display: flex; flex-direction: column; gap: 20px; }

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group { display: flex; flex-direction: column; gap: 6px; }

.form-group label {
  font-size: .82rem;
  font-weight: 700;
  color: var(--c-text-dark);
  letter-spacing: .02em;
}
.optional {
  font-weight: 400;
  color: var(--c-text-light);
}

.form-group input,
.form-group select,
.form-group textarea {
  padding: 11px 15px;
  border: 1.5px solid var(--c-border);
  border-radius: var(--r-sm);
  font-family: var(--f-body);
  font-size: .93rem;
  color: var(--c-text-dark);
  background: var(--c-warm-white);
  outline: none;
  appearance: none;
  -webkit-appearance: none;
  transition: border-color var(--ease), box-shadow var(--ease), background var(--ease);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--c-text-light); }

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--c-primary);
  box-shadow: 0 0 0 3px rgba(168,141,1,.12);
  background: var(--c-white);
}

.form-group select {
  cursor: pointer;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1l5 5 5-5' stroke='%235A6B65' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 14px center;
  padding-right: 36px;
}

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

.form-check {
  flex-direction: row;
  align-items: flex-start;
  gap: 10px;
}
.form-check input[type="checkbox"] {
  width: 18px;
  height: 18px;
  min-width: 18px;
  border: 1.5px solid var(--c-border);
  border-radius: 4px;
  cursor: pointer;
  accent-color: var(--c-primary);
  padding: 0;
  margin-top: 2px;
}
.form-check label {
  font-size: .83rem;
  font-weight: 400;
  color: var(--c-text-mid);
  cursor: pointer;
  line-height: 1.5;
}
.form-check label a {
  color: var(--c-primary);
  text-decoration: underline;
}

.form-message {
  font-size: .88rem;
  padding: 12px 16px;
  border-radius: var(--r-sm);
  display: none;
  line-height: 1.5;
}
.form-message.success {
  background: var(--c-primary-pale);
  color: var(--c-primary);
  border: 1px solid rgba(168,141,1,.25);
}
.form-message.error {
  background: #FEF0F0;
  color: #C0392B;
  border: 1px solid rgba(192,57,43,.2);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  background: var(--c-text-dark);
  padding: 56px 0;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  gap: 28px;
}

.footer .logo-name   { color: var(--c-white); font-size: 1.05rem; }
.footer .logo-subtitle { color: rgba(255,255,255,.45); }

.footer-brand { display: flex; flex-direction: column; gap: 4px; }

.footer-nav { display: flex; gap: 24px; flex-wrap: wrap; justify-content: center; }
.footer-nav a {
  font-size: .88rem;
  color: rgba(255,255,255,.6);
  transition: color var(--ease);
}
.footer-nav a:hover { color: var(--c-white); }

.footer-legal { display: flex; gap: 20px; flex-wrap: wrap; justify-content: center; }
.footer-legal a {
  font-size: .78rem;
  color: rgba(255,255,255,.35);
  transition: color var(--ease);
}
.footer-legal a:hover { color: rgba(255,255,255,.65); }

.footer-copy {
  font-size: .78rem;
  color: rgba(255,255,255,.3);
}

/* ============================================================
   ANIMACIONES — FADE IN ON SCROLL
   ============================================================ */
.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity .65s ease, transform .65s ease;
}
.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 960px) {
  :root { --sec-pad: 72px 0; }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
  .photo-placeholder {
    max-width: 360px;
    margin: 0 auto;
  }
  .services-grid {
    grid-template-columns: 1fr;
  }
  .steps-grid {
    grid-template-columns: repeat(2, 1fr);
  }
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 48px;
  }
}

@media (max-width: 768px) {
  :root {
    --sec-pad: 56px 0;
    --pad-x: 20px;
  }

  .menu-toggle { display: flex; }

  #mainNav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    background: var(--c-warm-white);
    border-bottom: 1px solid var(--c-border);
    padding: 20px;
    display: none;
    box-shadow: var(--shadow-md);
  }
  #mainNav.open { display: block; }
  #mainNav ul   { flex-direction: column; gap: 2px; }
  #mainNav ul li a { display: block; padding: 12px 16px; }

  .hero { min-height: auto; padding: 130px 0 80px; }
  .hero-decor { display: none; }
  .hero-actions { flex-direction: column; gap: 12px; }
  .btn-primary,
  .btn-secondary { text-align: center; }

  .steps-grid { grid-template-columns: 1fr; }

  .form-row { grid-template-columns: 1fr; }

  .contact-form-wrap { padding: 32px 24px; }
}

@media (max-width: 480px) {
  .services-grid { gap: 16px; }
  .service-card  { padding: 28px 24px; }
}

/* ============================================================
   PÁGINA EN CONSTRUCCIÓN
   ============================================================ */
.page-construccion {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--c-primary-pale) 0%, var(--c-beige) 55%, var(--c-accent-pale) 100%);
  padding: 40px 24px;
}

.construccion-card {
  text-align: center;
  max-width: 480px;
  width: 100%;
}

.construccion-logo {
  width: 88px;
  height: 88px;
  object-fit: contain;
  margin: 0 auto 28px;
  border-radius: var(--r-md);
  box-shadow: var(--shadow-md);
}

.construccion-card h1 {
  font-family: var(--f-heading);
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 700;
  color: var(--c-text-dark);
  margin-bottom: 8px;
}

.construccion-subtitulo {
  font-size: .88rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--c-primary);
  margin-bottom: 0;
}

.construccion-divider {
  width: 48px;
  height: 2px;
  background: var(--c-primary);
  border-radius: 2px;
  margin: 28px auto;
  opacity: .4;
}

.construccion-mensaje {
  font-family: var(--f-heading);
  font-style: italic;
  font-size: 1.15rem;
  color: var(--c-text-mid);
  line-height: 1.7;
  margin-bottom: 36px;
}

.construccion-contacto {
  display: flex;
  flex-direction: column;
  gap: 12px;
  align-items: center;
  margin-bottom: 32px;
}

.construccion-link {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: .95rem;
  color: var(--c-text-mid);
  padding: 10px 20px;
  border-radius: var(--r-sm);
  background: rgba(255,255,255,.7);
  border: 1px solid var(--c-border);
  transition: color var(--ease), background var(--ease), transform var(--ease);
}
.construccion-link:hover {
  color: var(--c-primary);
  background: var(--c-white);
  transform: translateY(-2px);
}
.construccion-link svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.construccion-location {
  font-size: .78rem;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--c-text-light);
}