:root{
  --bg:#ffffff;
  --text:#1b1b1b;
  --muted:#6d6d6d;
  --brand:#ff4d6d;
  --brand-soft:#ffe7ee;
  --card:#ffffff;
  --shadow: 0 18px 60px rgba(17, 24, 39, .10);
  --shadow-soft: 0 10px 30px rgba(17, 24, 39, .08);
  --radius: 18px;
  --radius-lg: 26px;
  --container: 1120px;
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Arial, "Noto Sans", "Helvetica Neue", sans-serif;
  color:var(--text);
  background:var(--bg);
}

a{ color:inherit; text-decoration:none; }
img{ max-width:100%; display:block; }

.container{
  width:min(var(--container), calc(100% - 40px));
  margin:0 auto;
}

/* Header fijo (como imagen 1) */
.site-header{
  position:fixed;
  top:0; left:0; right:0;
  z-index:50;
  padding:16px 0;
  background: linear-gradient(to bottom, rgba(0,0,0,.30), rgba(0,0,0,0));
}
.header-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:16px;
}
.brand{
  display:flex;
  align-items:center;
  gap:10px;
  font-weight:600;
  color:#fff;
}
.brand-name{ letter-spacing:.2px; }
.nav{
  display:flex;
  gap:22px;
}
.nav-link{
  color:rgba(255,255,255,.85);
  font-size:14px;
  position:relative;
  padding:6px 0;
  transition: all .22s ease;
}
.nav-link:hover{ color:#fff; transform: translateY(-1px); }
.nav-link::after{
  content:"";
  position:absolute;
  left:0; bottom:-6px;
  width:0; height:2px;
  background:rgba(255,255,255,.9);
  transition: width .22s ease;
}
.nav-link:hover::after{ width:100%; }
.nav-link.is-active{ color:#fff; }
.nav-link.is-active::after{ width:100%; }

/* Main */
.site-main{ padding-top:76px; }

/* Hero (imagen 1) */
.hero{
  position:relative;
  min-height: calc(100vh - 0px);
  display:flex;
  align-items:center;
  justify-content:center;
  overflow:hidden;
}
.hero-bg{
  position:absolute; inset:0;
  background-image:
    url("../img/fondo.jpg");
  background-size:cover;
  background-position:center;
  transform: scale(1.06);
  filter: blur(1px);
}
.hero-overlay{
  position:absolute; inset:0;
  background: radial-gradient(60% 60% at 50% 45%, rgba(0,0,0,.24), rgba(0,0,0,.55));
}
.hero-content{
  position:relative;
  text-align:center;
  color:#fff;
  padding: 110px 0 80px;
}
.hero-title{
  font-family: ui-serif, Georgia, "Times New Roman", Times, serif;
  font-weight:500;
  font-size: clamp(42px, 5vw, 68px);
  margin:0 0 10px;
}
.hero-subtitle{
  margin:0;
  font-size:16px;
  color:rgba(255,255,255,.85);
}
.hero-mini{
  margin:10px 0 0;
  font-size:13px;
  color:rgba(255,255,255,.75);
}
.hero-actions{ margin-top:26px; }

/* Botones */
.btn{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  gap:10px;
  border:0;
  cursor:pointer;
  padding: 12px 18px;
  border-radius: 14px;
  background:#fff;
  color:#2a2a2a;
  box-shadow: var(--shadow-soft);
  transition: transform .18s ease, box-shadow .18s ease, opacity .18s ease;
}
.btn:hover{ transform: translateY(-1px); box-shadow: var(--shadow); }
.btn:active{ transform: translateY(0px); opacity:.95; }
.btn-pill{ border-radius:999px; padding: 12px 22px; }

.btn-primary{
  background: var(--brand);
  color:#fff;
  box-shadow: 0 16px 44px rgba(255,77,109,.28);
}
.btn-wide{ width:100%; padding:14px 18px; border-radius: 12px; }

/* Secciones (imagen 2 y 3) */
.section{
  padding: 56px 0 80px;
}
.section-top{ padding-top: 64px; }
.section-title{
  text-align:center;
  font-family: ui-serif, Georgia, "Times New Roman", Times, serif;
  font-weight:500;
  font-size: clamp(34px, 3.2vw, 54px);
  margin: 0 0 10px;
  color:#1f2a37;
}
.section-subtitle{
  text-align:center;
  margin: 0 0 26px;
  color:#6b7280;
  font-size:14px;
  line-height:1.5;
}

/* Switch “Todas / Últimas” */
.pill-switch{
  display:flex;
  justify-content:center;
  gap:12px;
  margin: 18px 0 34px;
}
.pill{
  display:inline-flex;
  padding: 10px 18px;
  border-radius:999px;
  border:1px solid #eee;
  background:#fff;
  color:#6b7280;
  font-size:13px;
  box-shadow: 0 10px 26px rgba(17,24,39,.05);
  transition: all .18s ease;
}
.pill:hover{ transform: translateY(-1px); }
.pill.is-active{
  background: var(--brand);
  border-color: transparent;
  color:#fff;
  box-shadow: 0 16px 40px rgba(255,77,109,.22);
}

/* Grid Galería */
.gallery-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}
.card{
  background:var(--card);
  border-radius: var(--radius);
  box-shadow: var(--shadow-soft);
  overflow:hidden;
}
.photo-card{
  position:relative;
}
.photo-link{ display:block; }
.photo{
  width:100%;
  height: 250px;
  object-fit: cover;
  transition: transform .35s ease;
}
.photo-card:hover .photo{ transform: scale(1.03); }

.photo-caption{
  padding: 12px 14px 14px;
  border-top: 1px solid rgba(17,24,39,.06);
}
.cap-name{
  font-weight:600;
  font-size:13px;
  color:#111827;
  margin-bottom:4px;
}
.cap-msg{
  font-size:13px;
  color:#6b7280;
}

/* Upload card (imagen 3) */
.upload-card{
  max-width: 860px;
  margin: 0 auto;
  border-radius: var(--radius-lg);
  padding: 26px;
  background: #fff;
}
.upload-form{ display:flex; flex-direction:column; gap:14px; }
.field-label{
  font-size:13px;
  color:#4b5563;
  margin-bottom:6px;
}
.req{ color:var(--brand); }

.dropzone{
  position:relative;
  border-radius: 16px;
  border: 2px dashed rgba(255,77,109,.25);
  background: rgba(255,77,109,.08);
  padding: 24px;
  transition: all .18s ease;
}
.dropzone.is-dragover{
  border-color: rgba(255,77,109,.55);
  background: rgba(255,77,109,.12);
  transform: translateY(-1px);
}
.file-input{
  position:absolute;
  inset:0;
  opacity:0;
  cursor:pointer;
}
.dz-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:8px;
  pointer-events:none;
}
.dz-title{ font-weight:600; color:#374151; }
.dz-sub{ font-size:13px; color:#6b7280; }
.dz-files{ margin-top:10px; width:100%; }
.file-list{
  display:flex; flex-wrap:wrap; gap:8px;
  justify-content:center;
}
.file-chip{
  font-size:12px;
  background:#fff;
  border:1px solid rgba(17,24,39,.08);
  padding: 6px 10px;
  border-radius:999px;
  box-shadow: 0 10px 20px rgba(17,24,39,.05);
}
.file-more{
  font-size:12px;
  color:#6b7280;
  padding: 6px 10px;
}

.hint{
  font-size:12px;
  color:#6b7280;
  margin-top:2px;
}

.grid-2{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap:14px;
}
.input{
  width:100%;
  padding: 12px 14px;
  border-radius: 12px;
  border: 1px solid rgba(17,24,39,.10);
  outline:none;
  transition: box-shadow .18s ease, border-color .18s ease;
}
.input:focus{
  border-color: rgba(255,77,109,.45);
  box-shadow: 0 0 0 6px rgba(255,77,109,.10);
}

/* Alerts */
.alert{
  max-width:860px;
  margin: 0 auto 16px;
  padding: 12px 14px;
  border-radius: 14px;
  font-size: 13px;
  box-shadow: var(--shadow-soft);
}
.alert.success{
  background: rgba(16,185,129,.10);
  border: 1px solid rgba(16,185,129,.25);
  color: #065f46;
}
.alert.error{
  background: rgba(239,68,68,.10);
  border: 1px solid rgba(239,68,68,.22);
  color: #7f1d1d;
}

/* Empty state */
.empty{
  display:flex;
  justify-content:center;
  padding: 30px 0 10px;
}
.empty-card{
  width:min(520px, 100%);
  text-align:center;
  padding: 26px;
  border-radius: 22px;
  background: #fff;
  box-shadow: var(--shadow-soft);
  border:1px solid rgba(17,24,39,.06);
}
.empty-card h3{ margin:0 0 6px; font-family: ui-serif, Georgia, serif; font-weight:500; }
.empty-card p{ margin:0 0 16px; color:#6b7280; font-size:13px; }

/* Footer (imagen 4) */
.site-footer{
  background: var(--brand-soft);
  padding: 42px 0;
  margin-top: 40px;
}
.footer-inner{
  display:flex;
  flex-direction:column;
  align-items:center;
  text-align:center;
  gap:10px;
}
.footer-brand{
  display:flex;
  align-items:center;
  gap:10px;
  color:#1f2a37;
}
.footer-title{
  font-family: ui-serif, Georgia, serif;
  font-weight:500;
}
.footer-text{
  margin: 0;
  color:#6b7280;
  font-size:13px;
  max-width: 620px;
}
.footer-meta{
  margin-top: 8px;
  color:#6b7280;
  font-size:12px;
  display:flex;
  flex-direction:column;
  gap:4px;
}
.footer-mini{ opacity:.8; }

/* Responsive */
@media (max-width: 980px){
  .gallery-grid{ grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px){
  .nav{ gap:14px; }
  .gallery-grid{ grid-template-columns: 1fr; }
  .grid-2{ grid-template-columns: 1fr; }
  .upload-card{ padding: 18px; }
}