/* ============================================================
   ESTEBAN SOLANO — PORTFOLIO CSS
   ============================================================ */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
:root{--bg:#f5f5f3;--sidebar-bg:#f7f7f5;--sidebar-border:#e6e6e6;--text-dark:#111;--text-mid:#444;--text-light:#606060;--text-xlight:#707070;--accent-teal:#00a896;--dark-bg:#191919;--dark-bg2:#111;--sidebar-w:260px;--font:'Montserrat', sans-serif;--ease:cubic-bezier(.25, .46, .45, .94)}
html{scroll-behavior:smooth}
body{font-family:var(--font);background:var(--bg);color:var(--text-dark);overflow-x:hidden;-webkit-font-smoothing:antialiased}
a{text-decoration:none;color:inherit}
img{display:block;width:100%}
button{font-family:var(--font);cursor:pointer}
/* ACCESSIBILITY / SEO */
.sr-only{position:absolute;width:1px;height:1px;padding:0;margin:-1px;overflow:hidden;clip:rect(0, 0, 0, 0);white-space:nowrap;border-width:0}
/* SIDEBAR */
.sidebar{position:fixed;top:0;left:0;width:var(--sidebar-w);height:100vh;height:100dvh;background:var(--sidebar-bg);border-right:1px solid var(--sidebar-border);padding:40px 30px;display:flex;flex-direction:column;justify-content:space-between;z-index:200;overflow-y:auto}
.sidebar-logo{display:block;margin-bottom:36px;text-decoration:none;opacity:1;transition:opacity .25s}
.sidebar-logo:hover{opacity:.7}
.logo-svg{width:100%;max-width:188px;height:auto;display:block}
.sidebar-top{flex:1}
.sidebar-nav{display:flex;flex-direction:column;gap:4px}
.nav-link{display:flex;align-items:center;justify-content:space-between;font-size:13px;font-weight:500;letter-spacing:3.5px;text-transform:uppercase;color:var(--text-mid);padding:11px 0;border-bottom:1px solid transparent;transition:color .25s, border-color .25s;cursor:pointer;background:none;border-top:none;border-left:none;border-right:none;width:100%;text-align:left}
.nav-link:hover,.nav-link.active{color:var(--text-dark);border-bottom-color:var(--text-dark)}
.nav-link .arrow{font-size:11px;transition:transform .25s;color:var(--text-xlight);opacity:1}
.nav-item.open .arrow{transform:rotate(180deg)}
.nav-dropdown{max-height:0;overflow:hidden;transition:max-height .35s var(--ease);padding-left:10px}
.nav-item.open .nav-dropdown{max-height:300px}
.nav-dropdown a{display:flex;align-items:center;justify-content:space-between;font-size:12px;font-weight:400;letter-spacing:2.5px;text-transform:uppercase;color:var(--text-light);padding:7px 0;transition:color .2s}
.nav-dropdown a:hover{color:var(--text-dark)}
.nav-cat-count{font-size:12px;font-weight:400;letter-spacing:0;text-transform:none;color:var(--text-xlight);margin-left:6px;flex-shrink:0}
.nav-subitem-header{display:flex;align-items:center;justify-content:space-between}
.nav-subitem-header>a{flex:1}
.nav-sub-toggle{background:none;border:none;color:var(--text-xlight);font-size:10px;cursor:pointer;padding:0;margin-left:10px;transition:transform .25s var(--ease);line-height:1;flex-shrink:0}
.nav-subitem.open .nav-sub-toggle{transform:rotate(180deg)}
.nav-subcat-list{max-height:0;overflow:hidden;transition:max-height .3s ease;padding-left:10px;border-left:1px solid var(--sidebar-border)}
.nav-subitem.open .nav-subcat-list{max-height:300px}
.nav-subcat-list a{display:flex;align-items:center;justify-content:space-between;font-size:12px;letter-spacing:2px;text-transform:uppercase;color:var(--text-xlight);padding:5px 0;transition:color .2s}
.nav-subcat-list a:hover{color:var(--text-mid)}
.sidebar-bottom{padding-top:24px;border-top:1px solid var(--sidebar-border);display:flex;flex-direction:column;gap:16px}
.sidebar-phone{display:flex;flex-direction:column;align-items:flex-start;gap:12px}
.sidebar-wa{color:var(--text-xlight);display:flex;align-items:center;gap:8px;transition:color 0.2s;font-size:12px;letter-spacing:2px;text-transform:uppercase}
.sidebar-wa:hover{color:#25D366}
.sidebar-wa svg{width:14px;height:14px;display:block;flex-shrink:0;margin:0 !important}
.sidebar-ig{color:var(--text-xlight);display:flex;align-items:center;gap:8px;transition:color 0.2s;font-size:12px;letter-spacing:2px;text-transform:uppercase}
.sidebar-ig:hover{color:#E1306C}
.sidebar-ig svg{width:14px;height:14px;display:block;flex-shrink:0;margin:0 !important}
.sidebar-socials{display:flex;gap:14px;flex-wrap:wrap}
.sidebar-socials a{display:flex;align-items:center;justify-content:center;width:26px;height:26px;color:var(--text-light);transition:color .25s}
.sidebar-socials a svg{width:14px;height:14px;display:block;flex-shrink:0}
.sidebar-socials a:hover{color:var(--text-dark)}
.sidebar-copy{font-size:11px;letter-spacing:2px;color:var(--text-xlight)}
.sidebar-version{display:block;font-size:inherit;font-weight:inherit;letter-spacing:inherit;text-transform:uppercase;color:inherit;opacity:1;margin-top:5px}
.wip-badge{font-size:8px;font-weight:600;letter-spacing:1.5px;text-transform:uppercase;background:#e1dfda;color:#444444;padding:2px 5px;border-radius:1px;margin-left:7px;vertical-align:middle;pointer-events:none}
.nav-wip{display:flex;align-items:center;font-size:13px;font-weight:500;letter-spacing:3.5px;text-transform:uppercase;color:var(--text-xlight);padding:11px 0;cursor:default;user-select:none}
/* MOBILE TOGGLE & HEADER */
.sidebar-toggle{display:none;position:fixed;top:18px;left:18px;z-index:300;background:var(--sidebar-bg);border:1px solid var(--sidebar-border);width:42px;height:42px;align-items:center;justify-content:center;flex-direction:column;gap:5px;cursor:pointer;transition:left .35s var(--ease), background .25s, border-color .25s}
.sidebar-toggle span{display:block;width:20px;height:1.5px;background:var(--text-dark);transition:transform .3s, opacity .3s}
.sidebar-overlay{display:none;position:fixed;inset:0;background:rgba(0, 0, 0, .4);z-index:190;opacity:0;transition:opacity .3s;pointer-events:none}
.sidebar-overlay.visible{opacity:1;pointer-events:all}
.mobile-header{display:none}
@media(max-width:960px) {
  .mobile-header{display:flex;justify-content:center;align-items:center;padding:24px 20px 10px}
  .mobile-header img{height:32px;width:auto;display:block}
}
/* MAIN */
.main{margin-left:var(--sidebar-w);min-height:100vh}
/* FILTERS */
.filters{position:sticky;top:0;z-index:100;background:rgba(245, 245, 243, .95);backdrop-filter:blur(14px);-webkit-backdrop-filter:blur(14px);display:flex;align-items:center;padding:0 32px;border-bottom:1px solid var(--sidebar-border);overflow-x:auto;scrollbar-width:none}
.filters::-webkit-scrollbar{display:none}
.filter-btn{background:none;border:none;font-size:12px;font-weight:500;letter-spacing:3px;text-transform:uppercase;color:var(--text-light);padding:20px 0;margin-right:28px;white-space:nowrap;transition:color .25s;position:relative;flex-shrink:0}
.filter-btn::after{content:'';position:absolute;bottom:0;left:0;right:0;height:2px;background:var(--text-dark);transform:scaleX(0);transition:transform .25s var(--ease)}
.filter-btn:hover{color:var(--text-dark)}
.filter-btn.active{color:var(--text-dark)}
.filter-btn.active::after{transform:scaleX(1)}
.filter-sep{color:var(--text-xlight);font-size:13px;margin-right:28px;user-select:none;pointer-events:none;flex-shrink:0}
/* GALLERY */
.gallery{column-count:3;column-gap:0;min-height:calc(100vh - 61px)}
/* 61px = altura barra de filtros */
.gallery-empty{text-align:center;font-size:13px;letter-spacing:3px;text-transform:uppercase;color:var(--text-xlight);padding:80px 20px;width:100%}
.gallery-item{break-inside:avoid;position:relative;overflow:hidden;cursor:pointer;display:block;opacity:0;transform:translateY(28px);transition:opacity .55s ease, transform .55s ease, filter .5s var(--ease)}
.gallery-item.visible{opacity:1;transform:translateY(0)}
.gallery-item.hidden{display:none}
/* Mobile First: Imagen a color, overlay visible por defecto */
.gallery-item img{width:100%;height:auto;display:block;filter:grayscale(0%);transition:transform .9s var(--ease), filter .5s var(--ease)}
.gallery-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;align-items:center;padding:28px 20px;background:linear-gradient(to top, rgba(0, 0, 0, .65) 0%, rgba(0, 0, 0, .1) 50%, transparent 100%);opacity:1;transform:translateY(0);transition:opacity .4s var(--ease), transform .4s var(--ease)}
.gallery-overlay h3{color:#fff;font-size:13px;font-weight:500;letter-spacing:4px;text-transform:uppercase;text-align:center}
.gallery-overlay span{color:rgba(255, 255, 255, .5);font-size:11px;letter-spacing:2px;text-transform:uppercase;margin-top:4px}
.overlay-exif{color:rgba(255, 255, 255, .4);font-size:10px;letter-spacing:1.5px;margin-top:6px;font-variant-numeric:tabular-nums}
/* Desktop: Escala de grises por defecto, overlay oculto (animación al hover) */
@media (min-width: 769px) {
  .gallery-item img{filter:grayscale(100%)}
  .gallery-item:hover img{transform:scale(1.04);filter:grayscale(0%)}
  .gallery-overlay{opacity:0;transform:translateY(10px)}
  .gallery-item:hover .gallery-overlay{opacity:1;transform:translateY(0)}
}
/* El sentinel y el spinner se ocultan cuando ya no hay más fotos */
.sentinel{height:1px;width:100%}
.loading{display:flex;justify-content:center;align-items:center;padding:40px;opacity:0;transition:opacity .3s}
.loading.visible{opacity:1}
.spinner{width:24px;height:24px;border:2px solid var(--sidebar-border);border-top-color:var(--text-dark);border-radius:50%;animation:spin .8s linear infinite}
@keyframes spin {
  to{transform:rotate(360deg)}
}
/* LIGHTBOX */
.lightbox{position:fixed;inset:0;z-index:500;background:rgba(0, 0, 0, .96);display:flex;align-items:center;justify-content:center;opacity:0;pointer-events:none;transition:opacity .35s var(--ease)}
.lightbox.open{opacity:1;pointer-events:all}
.lb-img-wrap{position:relative;max-width:88vw;max-height:88vh;display:flex;flex-direction:column;align-items:center;justify-content:center;gap:16px}
.lb-img-wrap img{max-width:100%;max-height:70vh;width:auto;height:auto;object-fit:contain;display:block;transition:opacity .3s}
.lb-info{position:static;text-align:center;width:100%}
.lb-title{color:rgba(255, 255, 255, .6);font-size:12px;letter-spacing:3px;text-transform:uppercase;margin-bottom:8px}
.lb-exif{display:flex;flex-wrap:wrap;gap:6px;justify-content:center;margin-top:2px}
.lb-exif-item{font-size:11px;letter-spacing:1px;color:rgba(255, 255, 255, .5);background:rgba(255, 255, 255, .07);padding:3px 10px;border-radius:20px;font-variant-numeric:tabular-nums}
.lb-exif-item b{font-weight:600;color:rgba(255, 255, 255, .7)}
.lb-close{position:fixed;top:24px;right:28px;color:rgba(255, 255, 255, .55);font-size:28px;font-weight:300;cursor:pointer;transition:color .2s;background:none;border:none;line-height:1;z-index:510}
.lb-close:hover{color:#fff}
.lb-nav{position:fixed;top:50%;transform:translateY(-50%);background:none;border:none;color:rgba(255, 255, 255, .4);font-size:36px;font-weight:300;cursor:pointer;padding:16px 24px;transition:color .2s;z-index:510;line-height:1}
.lb-nav:hover{color:rgba(255, 255, 255, .9)}
.lb-prev{left:12px}
.lb-next{right:12px}
/* ABOUT HERO */
.about-hero{position:relative;height:85vh;min-height:520px;overflow:hidden;display:flex;align-items:flex-end}
.about-hero-bg{position:absolute;top:-20%;left:0;width:100%;height:140%;background-size:cover;background-position:center;z-index:0;will-change:transform;filter:grayscale(100%);transition:filter 1.2s}
.about-hero:hover .about-hero-bg{filter:grayscale(50%)}
.about-hero-overlay{position:absolute;inset:0;background:linear-gradient(to top, rgba(0, 0, 0, .75) 0%, rgba(0, 0, 0, .1) 55%, transparent 100%)}
.about-hero-text{position:relative;z-index:1;padding:0 60px 60px;color:#fff}
.about-hero-label{font-size:11px;font-weight:500;letter-spacing:4px;text-transform:uppercase;color:rgba(255, 255, 255, .5);margin-bottom:12px}
.about-hero-text h1{font-size:clamp(30px, 4.5vw, 55px);font-weight:300;letter-spacing:2px;line-height:1.2;margin-bottom:8px}
.about-hero-text h2{font-size:13px;font-weight:500;letter-spacing:5px;text-transform:uppercase;color:rgba(255, 255, 255, .45);margin-bottom:28px}
.hero-buttons{display:flex;gap:16px;flex-wrap:wrap}
.btn-cv{display:inline-block;font-size:12px;font-weight:500;letter-spacing:3px;text-transform:uppercase;color:#fff;border:1px solid rgba(255, 255, 255, .45);padding:12px 28px;transition:background .25s, border-color .25s}
.btn-cv:hover{background:rgba(255, 255, 255, .1);border-color:#fff}
/* BIO */
.about-bio{padding:80px 60px;max-width:780px}
.section-eyebrow{font-size:11px;font-weight:500;letter-spacing:4px;text-transform:uppercase;color:var(--text-light);margin-bottom:28px}
.about-bio p{font-size:17px;font-weight:300;line-height:1.9;color:var(--text-mid)}
/* SKILLS */
.about-skills{padding:0 0 80px}
.skills-header{padding:0 60px 48px}
.skills-header h2{font-size:15px;font-weight:500;letter-spacing:4px;text-transform:uppercase;color:var(--text-dark)}
.skills-grid{display:grid;grid-template-columns:repeat(3, 1fr);border-top:1px solid var(--sidebar-border)}
.skill-card{padding:48px 40px;border-right:1px solid var(--sidebar-border);transition:background .3s}
.skill-card:last-child{border-right:none}
.skill-card:hover{background:rgba(0, 0, 0, .018)}
.skill-icon{width:42px;height:42px;border:1px solid var(--sidebar-border);display:flex;align-items:center;justify-content:center;margin-bottom:28px;font-size:18px}
.skill-card h3{font-size:13px;font-weight:600;letter-spacing:3px;text-transform:uppercase;margin-bottom:16px;color:var(--text-dark)}
.skill-card p{font-size:15px;font-weight:300;line-height:1.8;color:var(--text-mid);margin-bottom:24px}
.skill-link{font-size:11px;font-weight:600;letter-spacing:3px;text-transform:uppercase;color:var(--text-dark);border-bottom:1px solid var(--text-dark);padding-bottom:2px;transition:opacity .2s}
.skill-link:hover{opacity:.5}
/* CONTACT BANNER (HORIZONTAL NEWSLETTER STYLE WITH PHOTOGRAPHY BACKGROUND) */
.about-contact-banner{position:relative;background-image:url('../assets/contacto_bg.webp');background-size:cover;background-position:center;padding:100px 60px;color:#fff;overflow:hidden;display:flex;align-items:center;justify-content:center;border-top:1px solid rgba(255, 255, 255, 0.05)}
.about-contact-banner::before{content:'';position:absolute;inset:0;background:rgba(0, 0, 0, 0.7);/* Dark semi-transparent cover overlay */
  z-index:0}
.contact-banner-content{position:relative;z-index:1;width:100%;max-width:1000px;margin:0 auto;display:flex;flex-direction:row;align-items:center;justify-content:space-between;gap:40px}
.contact-banner-content h2{font-size:clamp(22px, 3vw, 36px);font-weight:300;letter-spacing:3px;text-transform:uppercase;margin-bottom:0;line-height:1.3;text-align:left}
.btn-whatsapp{display:inline-flex;align-items:center;justify-content:center;gap:12px;background:#075E54;color:#fff;font-size:13px;font-weight:600;letter-spacing:3px;text-transform:uppercase;padding:16px 36px;border-radius:4px;box-shadow:0 4px 20px rgba(7, 94, 84, 0.25);transition:all 0.3s var(--ease);text-decoration:none}
.btn-whatsapp:hover{background:#05433c;transform:translateY(-2px);box-shadow:0 6px 24px rgba(7, 94, 84, 0.4)}
.btn-whatsapp:active{transform:translateY(0)}
.icon-wa{width:18px;height:18px;display:block;fill:currentColor}
.about-footer{background:var(--dark-bg2);padding:28px 60px;font-size:11px;letter-spacing:2.5px;text-transform:uppercase;color:rgba(255, 255, 255, .18)}
/* RESPONSIVE */
@media(max-width:1280px) {
  .gallery{column-count:2}
  .skills-grid{grid-template-columns:1fr 1fr}
  .skill-card:nth-child(2){border-right:none}
  .skill-card:nth-child(3){border-right:none;border-top:1px solid var(--sidebar-border);grid-column:span 2}
}
@media(max-width:960px) {
  :root{--sidebar-w:0px}
  .sidebar{transform:translateX(-280px);width:280px;transition:transform .35s var(--ease);box-shadow:4px 0 24px rgba(0, 0, 0, .08);/* Optimización de espacio para pantallas móviles */
    padding:28px 24px;gap:16px}
  .sidebar.open{transform:translateX(0)}
  .sidebar-overlay{display:block}
  .sidebar-toggle{display:flex}
  .sidebar.open~.sidebar-toggle{left:298px}
  .sidebar.open~.sidebar-toggle span:nth-child(1){transform:rotate(45deg) translate(4.5px, 4.5px)}
  .sidebar.open~.sidebar-toggle span:nth-child(2){opacity:0}
  .sidebar.open~.sidebar-toggle span:nth-child(3){transform:rotate(-45deg) translate(4.5px, -4.5px)}
  .sidebar-logo{margin-bottom:20px}
  .logo-svg{max-width:130px}
  .nav-link,.nav-wip{padding:8px 0;font-size:12px;letter-spacing:2.5px}
  .nav-dropdown a{padding:5px 0;font-size:11px;letter-spacing:2px}
  .nav-subcat-list a{padding:4px 0;font-size:12px;letter-spacing:1.5px}
  .sidebar-bottom{padding-top:16px;gap:12px}
  .sidebar-phone{gap:8px}
  .sidebar-wa,.sidebar-ig{font-size:11px;letter-spacing:1.5px}
  .sidebar-copy{font-size:10px;letter-spacing:1.5px}
  .main{margin-left:0}
  .filters{padding:0 16px 0 68px}
  .about-hero-text{padding:0 32px 40px}
  .about-bio{padding:56px 32px}
  .skills-header{padding:0 32px 40px}
  .skill-card{padding:36px 28px}
  .about-contact-banner{padding:80px 32px}
  .contact-banner-content{flex-direction:column;text-align:center;gap:28px}
  .contact-banner-content h2{text-align:center}
  .about-footer{padding:24px 32px}
  .lb-img-wrap img{max-height:55vh}
  .lb-img-wrap{gap:12px}
}
@media(max-width:640px) {
  .gallery{column-count:1}
  .skills-grid{grid-template-columns:1fr}
  .skill-card:nth-child(2){border-right:none;border-top:1px solid var(--sidebar-border)}
  .skill-card:nth-child(3){grid-column:span 1}
  .lb-nav{font-size:28px;padding:12px 14px}
}
/* PROTECCIÓN DE IMÁGENES */
img{-webkit-user-select:none;-moz-user-select:none;-ms-user-select:none;user-select:none;-webkit-user-drag:none;pointer-events:none;/* Pasa los eventos al contenedor padre y evita click derecho directo */}

/* ============================================================
   COLECCIONES FRONTEND STYLE
   ============================================================ */

.collections-header{padding:40px 40px 20px;display:flex;justify-content:space-between;align-items:center;flex-wrap:wrap;gap:20px}
.collections-header h1{font-size:30px;font-weight:300;letter-spacing:2px;text-transform:uppercase;margin-bottom:6px}
.collections-header p{color:var(--text-mid);font-size:14px;letter-spacing:1px}
.btn-toggle-view{background:transparent;border:1px solid #e8e6e1;border-radius:6px;padding:7px 12px;font-family:var(--font);font-size:10px;font-weight:500;letter-spacing:1.5px;color:#555555;cursor:pointer;transition:all 0.2s var(--ease);display:flex;align-items:center;gap:8px;white-space:nowrap}
.btn-toggle-view:hover{background:#1a1a1a !important;color:#ffffff !important;border-color:#1a1a1a !important}
/* Back button wrapper */
.back-btn-wrapper{padding:24px 40px 0}
/* Grids */
.collections-grid-container{padding:20px 40px 60px}
.col-grid-cards{display:grid;grid-template-columns:repeat(auto-fill, minmax(320px, 1fr));gap:30px}
.col-grid-tags{display:grid;grid-template-columns:repeat(auto-fill, minmax(240px, 1fr));gap:20px}
/* CARD MODE */
.col-card{background:var(--white);border:1px solid var(--sidebar-border);border-radius:8px;padding:20px;display:flex;flex-direction:column;gap:15px;box-shadow:var(--shadow);transition:transform 0.3s var(--ease), box-shadow 0.3s var(--ease);text-decoration:none;color:inherit}
.col-card:hover{transform:translateY(-4px);box-shadow:0 8px 24px rgba(0, 0, 0, 0.06)}
.col-card-hdr{display:flex;justify-content:space-between;align-items:center}
.col-card-title{font-size:14px;font-weight:600;letter-spacing:1px;text-transform:uppercase;color:var(--text-dark);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;flex:1;padding-right:15px}
.col-card-badge{background:#f0f0f0;color:var(--text-mid);font-size:10px;font-weight:500;padding:4px 10px;border-radius:4px;display:flex;align-items:center;gap:6px;letter-spacing:0.5px}
.col-card-badge svg{width:12px;height:12px;color:var(--text-light)}
/* Mini 2x2 Grid */
.col-card-minigrid{display:grid;grid-template-columns:repeat(2, minmax(0, 1fr));grid-template-rows:repeat(2, minmax(0, 1fr));gap:8px;height:180px;/* Explicit height constraints Safari grid row track computation */
  overflow:hidden;/* Avoid any wild portrait image expansion */}
.col-mini-photo{width:100%;height:100%;min-height:0;min-width:0;display:block;object-fit:cover;border-radius:4px;background:var(--bg)}
.col-mini-placeholder{width:100%;height:100%;min-height:0;min-width:0;background:#fafafa;border:1px dashed var(--sidebar-border);border-radius:4px}
.col-card-footer{display:flex;justify-content:space-between;align-items:center;border-top:1px solid var(--sidebar-border);padding-top:12px;margin-top:5px}
.col-author{display:flex;align-items:center;gap:8px}
.col-author-avatar{width:20px;height:20px;border-radius:50%;object-fit:cover;background:#e0e0e0}
.col-author-name{font-size:11px;font-weight:600;color:var(--text-dark);letter-spacing:0.5px}
.col-card-category{font-size:9px;text-transform:uppercase;letter-spacing:1.5px;color:var(--text-light);font-weight:500}
.btn-col-share{background:none;border:none;color:var(--text-light);cursor:pointer;padding:6px;border-radius:4px;transition:all 0.2s var(--ease);display:flex;align-items:center;justify-content:center}
.btn-col-share:hover{background:#f0f0f0;color:var(--text-dark)}
.btn-col-share svg{width:15px;height:15px}
/* TAG MODE */
.col-tag{height:180px;border-radius:8px;overflow:hidden;position:relative;text-decoration:none;color:#ffffff;display:flex;align-items:center;justify-content:center;box-shadow:var(--shadow);transition:transform 0.4s var(--ease), box-shadow 0.4s var(--ease)}
.col-tag:hover{transform:translateY(-4px);box-shadow:0 10px 24px rgba(0, 0, 0, 0.12)}
.col-tag-bg{position:absolute;inset:0;background-size:cover;background-position:center;transition:transform 0.8s var(--ease), filter 0.8s var(--ease);z-index:1}
.col-tag:hover .col-tag-bg{transform:scale(1.06)}
.col-tag-overlay{position:absolute;inset:0;background:rgba(0, 0, 0, 0.3);transition:background 0.4s var(--ease);z-index:2}
.col-tag:hover .col-tag-overlay{background:rgba(0, 0, 0, 0.45)}
.col-tag-content{position:relative;z-index:5;text-align:center;padding:20px;display:flex;flex-direction:column;align-items:center;justify-content:flex-end;gap:4px;width:100%;height:100%;pointer-events:none;/* Let clicks pass through to the overlay link underneath */}
.col-tag-title{font-size:16px;font-weight:600;letter-spacing:2px;text-transform:uppercase;margin:0;color:#ffffff;text-shadow:0 2px 4px rgba(0, 0, 0, 0.3)}
.col-tag-meta{font-size:11px;letter-spacing:1.5px;text-transform:uppercase;color:rgba(255, 255, 255, 0.85);opacity:0;transition:opacity 0.4s var(--ease);text-shadow:0 1px 2px rgba(0, 0, 0, 0.3)}
.col-tag:hover .col-tag-meta{opacity:1}
.col-tag .btn-col-share{background:rgba(0, 0, 0, 0.40);border:none;cursor:pointer;padding:8px;border-radius:50%;color:rgba(255, 255, 255, 0.85);opacity:0;pointer-events:none;transition:all 0.4s var(--ease);display:flex;align-items:center;justify-content:center}
.col-tag .btn-col-share svg{width:22px;height:22px}
.col-tag .btn-col-share:hover{background:rgba(0, 0, 0, 0.60);color:#fff;transform:scale(1.1)}
.col-tag:hover .btn-col-share{opacity:1;pointer-events:auto}
/* Responsive Gaps */
@media (max-width: 768px) {
  .collections-header{padding:80px 20px 20px}
  .collections-grid-container{padding:10px 20px 40px}
  .back-btn-wrapper{padding:15px 20px 0}
  .back-btn-wrapper .btn-back-inline{padding:8px 14px;font-size:10px}
  /* On mobile, show tag details, metadata and copy button immediately without hover */
  .col-tag .col-tag-overlay{background:rgba(0, 0, 0, 0.55) !important}
  .col-tag .col-tag-meta{opacity:1 !important}
  .col-tag .btn-col-share{opacity:1 !important;pointer-events:auto !important}
}

/* ============================================================
   INDIVIDUAL COLLECTION GALLERY STYLE (Stage 4 Spaced Grid)
   ============================================================ */

.collection-gallery{column-count:3;column-gap:24px;padding:10px 0 60px}
.collection-gallery-item{display:inline-block;width:100%;break-inside:avoid;position:relative;overflow:hidden;cursor:pointer;margin-bottom:24px;border-radius:8px;background:var(--white);box-shadow:0 2px 10px rgba(0, 0, 0, 0.03);transition:transform 0.5s var(--ease), opacity 0.5s var(--ease), box-shadow 0.4s var(--ease);opacity:0;transform:translateY(20px)}
.collection-gallery-item.visible{opacity:1;transform:translateY(0)}
.collection-gallery-item img{width:100%;height:auto;display:block;border-radius:8px;filter:grayscale(100%);transition:transform 0.9s var(--ease), filter 0.5s var(--ease);-webkit-backface-visibility:hidden;backface-visibility:hidden;will-change:transform, filter}
.collection-gallery-item:hover img{transform:scale(1.04);filter:grayscale(0%)}
.collection-gallery-item:hover{box-shadow:0 10px 24px rgba(0, 0, 0, 0.12)}
.collection-gallery-overlay{position:absolute;inset:0;display:flex;flex-direction:column;justify-content:flex-end;padding:20px;background:linear-gradient(to top, rgba(0, 0, 0, 0.6) 0%, rgba(0, 0, 0, 0.05) 50%, transparent 100%);opacity:0;transform:translateY(8px);transition:opacity 0.4s var(--ease), transform 0.4s var(--ease);pointer-events:none;z-index:2;-webkit-backface-visibility:hidden;backface-visibility:hidden;will-change:transform, opacity;border-radius:8px}
.collection-gallery-item:hover .collection-gallery-overlay{opacity:1;transform:translateY(0)}
.collection-gallery-title{color:#ffffff;font-size:12px;font-weight:600;letter-spacing:2px;text-transform:uppercase}
/* Responsiveness for Individual Collection */
@media (max-width: 960px) {
  .collection-gallery{column-count:2;column-gap:16px}
  .collection-gallery-item{margin-bottom:16px}
}
@media (max-width: 640px) {
  .collection-gallery{column-count:1}
  .collection-gallery-item img{filter:grayscale(0%)}
  .collection-gallery-overlay{opacity:1;transform:translateY(0)}
  .col-grid-cards{grid-template-columns:1fr;gap:20px}
  .col-card-minigrid{height:150px;/* shorter on mobile to fit the single-column screen layout perfectly */}
}

/* ============================================================
   PHOTO VISUALIZER LAYOUT STYLE (Stage 5 Dedicated Page)
   ============================================================ */

.photo-viewer-page{display:flex;height:100vh;overflow:hidden;background:#f5f5f3;font-family:var(--font)}
.photo-viewer-main{flex:1;background:#0f0f0f;display:flex;flex-direction:column;position:relative;justify-content:center;align-items:center;user-select:none}
.photo-viewer-header{position:absolute;top:0;left:0;right:0;padding:20px;display:flex;justify-content:space-between;align-items:center;z-index:10;background:linear-gradient(to bottom, rgba(0, 0, 0, 0.6) 0%, transparent 100%);pointer-events:none}
.btn-photo-back{background:rgba(255, 255, 255, 0.15);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255, 255, 255, 0.1);color:#ffffff;border-radius:4px;padding:8px 16px;font-size:11px;font-weight:600;letter-spacing:1px;text-transform:uppercase;text-decoration:none;pointer-events:auto;transition:all 0.25s var(--ease)}
.btn-photo-back:hover{background:#ffffff;color:#000000}
.photo-viewer-container{width:100%;height:100%;display:flex;justify-content:center;align-items:center;position:relative}
.photo-viewer-img-wrap{position:relative;width:100%;height:100%;max-width:100%;max-height:100%;display:flex;justify-content:center;align-items:center;overflow:hidden}
.photo-viewer-img-wrap img{width:auto;height:auto;max-width:100%;max-height:100%;object-fit:contain;border-radius:4px;box-shadow:0 10px 40px rgba(0, 0, 0, 0.5);transition:opacity 0.3s ease}
/* Nav arrows */
.photo-viewer-nav{position:absolute;top:50%;transform:translateY(-50%);background:rgba(255, 255, 255, 0.15);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255, 255, 255, 0.1);color:#ffffff;width:44px;height:44px;border-radius:50%;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10;transition:all 0.25s var(--ease);user-select:none}
.photo-viewer-nav:hover{background:#ffffff;color:#000000;border-color:#ffffff}
.photo-viewer-prev{left:24px}
.photo-viewer-next{right:24px}
/* Expand button */
.btn-photo-expand{position:absolute;bottom:24px;right:24px;background:rgba(255, 255, 255, 0.15);backdrop-filter:blur(10px);-webkit-backdrop-filter:blur(10px);border:1px solid rgba(255, 255, 255, 0.1);color:#ffffff;width:36px;height:36px;border-radius:4px;display:flex;align-items:center;justify-content:center;cursor:pointer;z-index:10;transition:all 0.25s var(--ease)}
.btn-photo-expand:hover{background:#ffffff;color:#000000}
/* Sidebar metadata */
.photo-viewer-sidebar{width:340px;background:#f7f7f5;border-left:1px solid var(--sidebar-border);padding:30px 24px;display:flex;flex-direction:column;gap:20px;overflow-y:auto;height:100vh}
.metadata-card{background:var(--white);border:1px solid var(--sidebar-border);border-radius:8px;padding:24px;box-shadow:0 2px 8px rgba(0, 0, 0, 0.02)}
.metadata-title{font-size:15px;font-weight:700;letter-spacing:0.5px;color:var(--text-dark);margin-bottom:6px;text-transform:capitalize}
.metadata-desc{font-size:12px;color:var(--text-mid);line-height:1.5;margin-bottom:16px;word-break:break-word;overflow-wrap:break-word}
.metadata-row{display:flex;align-items:center;gap:10px;font-size:11px;color:var(--text-light);margin-top:10px}
.metadata-row svg{width:14px;height:14px;color:var(--text-xlight);flex-shrink:0}
.metadata-tech-strip{display:flex;justify-content:space-between;margin-top:16px;padding-top:16px;border-top:1px dashed var(--sidebar-border)}
.tech-item{display:flex;flex-direction:column;align-items:center;gap:4px}
.tech-value{font-size:11px;font-weight:600;color:var(--text-dark);font-variant-numeric:tabular-nums}
.tech-label{font-size:9px;text-transform:uppercase;color:var(--text-xlight);letter-spacing:0.5px}
/* Profile follow */
.profile-card{display:flex;flex-direction:column;align-items:center;text-align:center;padding:24px;background:var(--white);border:1px solid var(--sidebar-border);border-radius:8px;box-shadow:0 2px 8px rgba(0, 0, 0, 0.02)}
.profile-avatar{width:56px;height:56px;border-radius:50%;object-fit:cover;margin-bottom:12px;border:1px solid var(--sidebar-border);padding:2px;background:#fff}
.profile-name{font-size:12px;font-weight:700;letter-spacing:0.5px;color:var(--text-dark);margin-bottom:4px}
.profile-loc{font-size:10px;color:var(--text-light);margin-bottom:16px}
.btn-follow{background:#f2f2f7;color:#555555;border:none;border-radius:20px;padding:8px 30px;font-family:var(--font);font-size:11px;font-weight:600;letter-spacing:1px;text-transform:uppercase;cursor:pointer;transition:all 0.25s var(--ease);box-shadow:none;width:auto;display:inline-block;text-decoration:none}
.btn-follow:hover{background:#e1306c;color:#ffffff;transform:translateY(-1px);box-shadow:0 4px 12px rgba(225, 48, 108, 0.35)}
.btn-follow.following{background:#f0f0f0;color:var(--text-mid);box-shadow:none}
.btn-follow.following:hover{background:#e0e0e0;color:var(--text-dark)}
/* Responsiveness */
@media (max-width: 960px) {
  .photo-viewer-page{flex-direction:column;height:auto;overflow-y:auto}
  .photo-viewer-main{height:65vh;min-height:400px;width:100%}
  .photo-viewer-sidebar{width:100%;height:auto;overflow-y:visible;padding:24px}
  .photo-viewer-prev{left:12px}
  .photo-viewer-next{right:12px}
}
/* Standard Back Button for flow layout in Sidebar pages */
.btn-back-inline{display:inline-flex;align-items:center;gap:8px;background:transparent;border:1px solid #e8e6e1;border-radius:6px;padding:7px 12px;font-family:var(--font);font-size:10px;font-weight:500;letter-spacing:1.5px;color:#555555;text-decoration:none;transition:all 0.2s var(--ease);white-space:nowrap}
.btn-back-inline:hover{background:#1a1a1a !important;color:#ffffff !important;border-color:#1a1a1a !important}
.btn-back-inline svg{width:11px;height:11px;transition:transform 0.2s var(--ease);stroke:currentColor}
.btn-back-inline:hover svg{transform:translateX(-3px);stroke:#ffffff !important}
/* Absolute navigation overlays for semantic nesting fix */
.col-card,.col-tag{position:relative}
.col-card-overlay-link{position:absolute;inset:0;z-index:4;cursor:pointer}
.btn-col-share{position:relative;z-index:5}

/* ============================================================
   FULLSCREEN COMPATIBILITY STYLES (Safari / iOS Fallback)
   ============================================================ */

/* Native Fullscreen styling for main container */
#fullscreen-wrapper:fullscreen {
  width: 100vw !important;
  height: 100vh !important;
  background: #0f0f0f !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
}

#fullscreen-wrapper:-webkit-full-screen {
  width: 100vw !important;
  height: 100vh !important;
  background: #0f0f0f !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
}

/* Fake Fullscreen fallback for mobile Safari (iPhone) or unsupported devices */
#fullscreen-wrapper.fake-fullscreen {
  position: fixed !important;
  inset: 0 !important;
  z-index: 99999 !important;
  width: 100vw !important;
  height: 100dvh !important;
  max-width: none !important;
  max-height: none !important;
  background: #0f0f0f !important;
  display: flex !important;
  flex-direction: column !important;
  justify-content: center !important;
  align-items: center !important;
}

/* ============================================================
   SECCIÓN PROYECTOS — ESTILOS DE GRID Y TARJETAS
   ============================================================ */

/* Cabecera de la sección de proyectos */
.projects-header {
  padding: 40px 40px 20px;
}

/* Título principal de la cabecera */
.projects-header h1 {
  font-size: 30px;
  font-weight: 300;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 10px;
}

/* Subtítulo o descripción de la cabecera */
.projects-header p {
  color: var(--text-mid);
  font-size: 14px;
  letter-spacing: 1px;
}

/* Rejilla de proyectos (Responsive Grid) */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 30px;
  padding: 20px 40px 60px;
}

/* Tarjeta de proyecto (Mobile First) */
.project-card {
  background: var(--white);
  border: 1px solid var(--sidebar-border);
  border-radius: 8px;
  padding: 20px;
  display: flex;
  flex-direction: column;
  gap: 15px;
  box-shadow: var(--shadow);
  transition: transform 0.3s var(--ease), box-shadow 0.3s var(--ease);
  position: relative;
  text-decoration: none;
  color: inherit;
}

/* Efecto hover sobre la tarjeta de proyecto (Mobile First) */
.project-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.06);
}

/* Enlace invisible absoluto que cubre toda la tarjeta */
.project-card-overlay-link {
  position: absolute;
  inset: 0;
  z-index: 4;
  cursor: pointer;
}

/* Cabecera interna de la tarjeta de proyecto */
.project-card-hdr {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

/* Título del proyecto dentro del Card */
.project-card-title {
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 1px;
  text-transform: uppercase;
  color: var(--text-dark);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
  padding-right: 15px;
  margin: 0;
}

/* Contenedor de la foto de portada del proyecto */
.project-cover-container {
  height: 180px;
  width: 100%;
  overflow: hidden;
  border-radius: 4px;
  position: relative;
  z-index: 1;
}

/* Imagen de portada del proyecto */
.project-cover {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  border-radius: 4px;
}

/* Bloque de información del proyecto (oculto en móvil) */
.project-info {
  display: none;
}

/* Pie de la tarjeta de proyecto (Mobile First) */
.project-card-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-top: 1px solid var(--sidebar-border);
  padding-top: 12px;
  margin-top: 5px;
  position: relative;
  z-index: 5;
}

/* Contenedor de metadatos del proyecto en móvil */
.project-meta-mobile {
  display: flex;
  flex-direction: column;
  gap: 2px;
}

/* Fecha del proyecto en móvil */
.project-date-mobile {
  font-size: 11px;
  font-weight: 600;
  color: var(--text-dark);
  letter-spacing: 0.5px;
}

/* Categoría del proyecto en móvil */
.project-category-mobile {
  font-size: 9px;
  text-transform: uppercase;
  letter-spacing: 1.5px;
  color: var(--text-light);
  font-weight: 500;
}

/* Botón de copiar exclusivo para desktop (oculto en móvil) */
.btn-desktop-only {
  display: none;
}

/* Botón de copiar exclusivo para móvil */
.btn-mobile-only {
  display: flex;
  background: none;
  border: none;
  color: var(--text-light);
  cursor: pointer;
  padding: 6px;
  border-radius: 4px;
  transition: all 0.2s var(--ease);
  align-items: center;
  justify-content: center;
}

/* Hover del botón de copiar en móvil */
.btn-mobile-only:hover {
  background: #f0f0f0;
  color: var(--text-dark);
}

/* Icono SVG del botón de copiar en móvil */
.btn-mobile-only svg {
  width: 15px;
  height: 15px;
}

/* Contenedor de metadatos en desktop (oculto en móvil) */
.project-meta-desktop {
  display: none;
}

/* Media Query para pantallas pequeñas (Mobile/Tablet) */
@media (max-width: 768px) {
  /* Cabecera de proyectos en móvil */
  .projects-header {
    padding: 80px 20px 20px;
  }

  /* Rejilla de proyectos en móvil */
  .projects-grid {
    padding: 10px 20px 40px;
  }
}

/* Media Query para pantallas de escritorio (Desktop Adaptations) */
@media (min-width: 769px) {
  /* Rediseño de la tarjeta para usar estilo de portada completa (Tags) */
  .project-card {
    height: 180px;
    border-radius: 8px;
    padding: 0;
    overflow: hidden;
    position: relative;
    background: transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--shadow);
    transition: transform 0.4s var(--ease), box-shadow 0.4s var(--ease);
    border: none;
  }

  /* Hover de la tarjeta en desktop */
  .project-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.12);
  }

  /* Cabecera móvil oculta en desktop */
  .project-card-hdr {
    display: none;
  }

  /* Footer móvil oculto en desktop */
  .project-card-footer {
    display: none;
  }

  /* Portada del proyecto absoluta para rellenar la tarjeta */
  .project-cover-container {
    position: absolute;
    inset: 0;
    z-index: 1;
    overflow: hidden;
    width: 100%;
    height: 100%;
    border-radius: 8px;
  }

  /* Imagen de portada en desktop */
  .project-cover {
    width: 100%;
    height: 100% !important;
    object-fit: cover;
    display: block;
    filter: none;
    border-radius: 8px;
    transition: transform 0.8s var(--ease);
  }

  /* Zoom suave en la imagen de portada al hacer hover */
  .project-card:hover .project-cover {
    transform: scale(1.06);
  }

  /* Capa de contraste oscuro (overlay) sobre la portada */
  .project-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: rgba(0, 0, 0, 0.3);
    transition: background 0.4s var(--ease);
    z-index: 2;
  }

  /* Oscurecimiento de la capa al hacer hover */
  .project-card:hover::before {
    background: rgba(0, 0, 0, 0.45);
  }

  /* Caja de información del proyecto centrada en la tarjeta */
  .project-info {
    display: flex !important;
    position: absolute;
    inset: 0;
    z-index: 5;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    gap: 4px;
    width: 100%;
    height: 100%;
    padding: 20px;
    background: transparent !important;
    border: none;
    text-align: center;
    opacity: 1;
    transform: none;
    transition: none;
    pointer-events: none;
  }

  /* Título del proyecto en desktop */
  .project-title {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: 2px;
    text-transform: uppercase;
    margin: 0;
    color: #ffffff;
    text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
    order: 2;
  }

  /* Metadatos (categoría y fecha) en desktop */
  .project-meta-desktop {
    display: block;
    font-size: 11px;
    letter-spacing: 1.5px;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 1);
    opacity: 0;
    transition: opacity 0.4s var(--ease);
    text-shadow: 0 1px 2px rgba(0, 0, 0, 0.3);
    order: 3;
  }

  /* Revelar metadatos al hacer hover */
  .project-card:hover .project-meta-desktop {
    opacity: 1;
  }

  /* Botón de copiar en desktop */
  .btn-desktop-only {
    display: flex;
    background: rgba(0, 0, 0, 0.40);
    border: none;
    cursor: pointer;
    padding: 8px;
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.85);
    opacity: 0;
    pointer-events: none;
    transition: all 0.4s var(--ease);
    align-items: center;
    justify-content: center;
    order: 1;
    margin-bottom: 4px;
  }

  /* Icono SVG del botón de copiar en desktop */
  .btn-desktop-only svg {
    width: 22px;
    height: 22px;
  }

  /* Hover del botón de copiar en desktop */
  .btn-desktop-only:hover {
    background: rgba(0, 0, 0, 0.60);
    color: #fff;
    transform: scale(1.1);
  }

  /* Revelar botón de copiar al hacer hover en desktop */
  .project-card:hover .btn-desktop-only {
    opacity: 1;
    pointer-events: auto;
  }
}