/* =========================================
   YFCC Navigator — Clean CSS
   ========================================= */

:root{
  --yfcc-nav-gap: 16px;
  --yfcc-nav-pady: 10px;
  --yfcc-nav-maxw: 1200px;

  --yfcc-search-min: 360px;
  --yfcc-search-min-lg: 480px;

  --yfcc-brand-red: #c40000;
}

/* ---------- Shell ---------- */
.yfcc-nav{ border-bottom:1px solid #eee; background:#fff; }
.yfcc-nav .yfcc-nav__row{ width:100%; }
.yfcc-nav .yfcc-nav__row.is-fixed .yfcc-nav__con{ max-width:var(--yfcc-nav-maxw); margin:0 auto; padding:var(--yfcc-nav-pady) var(--yfcc-nav-gap); }
.yfcc-nav .yfcc-nav__row.is-full  .yfcc-nav__con{ width:100%; padding:var(--yfcc-nav-pady) var(--yfcc-nav-gap); }
.yfcc-nav .yfcc-nav__row.m-hidden{ display:block; }
@media (max-width:768px){ .yfcc-nav .yfcc-nav__row.m-hidden{ display:none; } }

/* =========================================
   ROW 2: Brand | Search (stretch) | Login | Cart
   ========================================= */
.yfcc-nav .yfcc-nav__grid{ display:grid; gap:var(--yfcc-nav-gap); align-items:center; }

.yfcc-nav .yfcc-nav__grid--row2{
  grid-template-columns: auto minmax(var(--yfcc-search-min), 1fr) auto auto;
  grid-template-areas: "brand search login cart";
}
@media (min-width:1200px){
  .yfcc-nav .yfcc-nav__grid--row2{
    grid-template-columns: auto minmax(var(--yfcc-search-min-lg), 1fr) auto auto;
  }
}
@media (max-width:900px){
  .yfcc-nav .yfcc-nav__grid--row2{
    grid-template-columns: auto auto auto;
    grid-template-areas:
      "brand login cart"
      "search search search";
  }
}
.yfcc-nav .yfcc-nav__grid--row2 > .c1{ grid-area:brand; }
.yfcc-nav .yfcc-nav__grid--row2 > .c2{ grid-area:search; min-width:0; }
.yfcc-nav .yfcc-nav__grid--row2 > .c3{ grid-area:login; justify-self:end; }
.yfcc-nav .yfcc-nav__grid--row2 > .c4{ grid-area:cart;  justify-self:end; }

/* Brand: logo + name (red/bold, no link style) */
.yfcc-nav .yfcc-nav__brand{ display:flex; align-items:center; gap:.55rem; min-width:0; }
.yfcc-nav .yfcc-nav__brand-link{ display:flex; align-items:center; gap:.55rem; text-decoration:none !important; }
.yfcc-nav .yfcc-nav__brand-logo{ height:44px; width:auto; display:block; }
.yfcc-nav .yfcc-nav__brand-text{ font-weight:800; color:var(--yfcc-brand-red); text-decoration:none !important; }

/* Search: stretch + icon-only submit (keeps SVG; hides text label) */
.yfcc-nav .yfcc-nav__search, .yfcc-nav .c2{ min-width:0; }
.yfcc-nav .yfcc-nav__search form,
.yfcc-nav .yfcc-nav__search .search-form,
.yfcc-nav .yfcc-nav__search .wp-block-search{
  display:flex; align-items:center; width:100%; gap:.45rem; margin:0;
}
.yfcc-nav .yfcc-nav__search form > label,
.yfcc-nav .yfcc-nav__search .search-form > label{
  display:flex; align-items:center; flex:1 1 auto; min-width:0; margin:0;
}
.yfcc-nav .yfcc-nav__search input[type="search"],
.yfcc-nav .yfcc-nav__search .search-field,
.yfcc-nav .yfcc-nav__search .wp-block-search__input{
  flex:1 1 auto; width:100%; min-width:0; box-sizing:border-box;
  height:40px; padding:.55rem .75rem; border:1px solid #d9d9d9; border-radius:6px; background:#fff; color:#111;
}
.yfcc-nav .yfcc-nav__search .search-submit,
.yfcc-nav .yfcc-nav__search .wp-block-search__button,
.yfcc-nav .yfcc-nav__search .wp-element-button{
  width:40px; min-width:40px; height:40px;
  padding:0 !important; margin:0 !important;
  display:inline-flex; align-items:center; justify-content:center;
  border:1px solid #d9d9d9; border-radius:6px; background:#f6f6f6;
  font-size:0 !important; line-height:0 !important; color:transparent !important;
  text-indent:-9999px !important; overflow:hidden !important; white-space:nowrap !important;
}
.yfcc-nav .yfcc-nav__search .search-submit svg,
.yfcc-nav .yfcc-nav__search .wp-block-search__button svg,
.yfcc-nav .yfcc-nav__search .wp-element-button svg{
  width:18px; height:18px; display:block; text-indent:0;
}
/* If no SVG exists, paint an inline lens */
.yfcc-nav .yfcc-nav__search .search-submit[data-iconless="1"]::before,
.yfcc-nav .yfcc-nav__search .wp-block-search__button[data-iconless="1"]::before,
.yfcc-nav .yfcc-nav__search .wp-element-button[data-iconless="1"]::before{
  content:""; width:18px; height:18px; display:block;
  background:no-repeat center/18px 18px
    url("data:image/svg+xml,%3Csvg viewBox='0 0 24 24' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' stroke='%23000' stroke-width='2'%3E%3Ccircle cx='11' cy='11' r='7'/%3E%3Cpath d='M20 20l-3.5-3.5'/%3E%3C/g%3E%3C/svg%3E");
}

/* =========================================
   ROW 3: Drawer toggle + Main menu (same line)
   ========================================= */
.yfcc-nav .yfcc-nav__grid--row3{ display:grid; grid-template-columns:auto 1fr; align-items:center; gap:16px; }
.yfcc-nav .yfcc-nav__grid--row3 > .c2{ min-width:0; }

.yfcc-nav .yfcc-nav__drawer-toggle{
  display:inline-flex; gap:.5rem; align-items:center;
  padding:.5rem .75rem; border:1px solid #d9d9d9; border-radius:6px;
  background:#fff; color:#000; cursor:pointer;
}
.yfcc-nav .yfcc-nav__drawer-toggle[aria-expanded="true"]{ background:#f5f5f5; }

/* =========================================
   MAIN MENU (desktop): wrap left, dropdown 2nd, flyout 3rd
   ========================================= */
#yfcc-nav.yfcc-nav nav#yfcc-nav__menu{ width:100%; min-width:0; }
#yfcc-nav.yfcc-nav nav#yfcc-nav__menu .yfcc-nav__menu-ul{
  display:flex; flex-wrap:wrap; justify-content:flex-start; align-content:flex-start;
  width:100%; max-width:100%; box-sizing:border-box;
  gap:10px 16px; margin:0; padding:0; list-style:none;
}
#yfcc-nav.yfcc-nav nav#yfcc-nav__menu .yfcc-nav__menu-ul > li{ margin:0; max-width:100%; position:relative; }
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul > li > a{
  position:relative; display:inline-block; padding:.7rem .5rem; line-height:1.2;
  font-weight:600; color:#111; text-decoration:none;
}
/* underline grow */
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul > li > a::after{
  content:""; position:absolute; left:0; right:0; bottom:-4px; height:2px; background:#0b66c3;
  transform:scaleX(0); transform-origin:left center; transition:transform .22s ease;
}
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul > li:hover > a::after,
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul > li > a:focus::after{ transform:scaleX(1); }

/* Standard dropdown (level 2) */
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul li > .sub-menu{
  position:absolute; top:100%; left:0; margin-top:.25rem; min-width:240px;
  background:#fff; color:#111; border:1px solid #e5e5e5; border-radius:10px;
  box-shadow:0 12px 32px rgba(0,0,0,.08);
  padding:.5rem; display:none; z-index:10050;
}
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul > li:hover > .sub-menu,
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul > li:focus-within > .sub-menu{ display:block; }

/* Level-3 flyout */
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul .sub-menu > li{ position:relative; }
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul .sub-menu > li > .sub-menu{
  position:absolute; top:0; left:100%; margin-left:.35rem; min-width:220px;
  background:#fff; border:1px solid #e5e5e5; border-radius:10px;
  box-shadow:0 12px 32px rgba(0,0,0,.08);
  padding:.5rem; display:none; z-index:10060;
}
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul .sub-menu > li:hover > .sub-menu,
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul .sub-menu > li:focus-within > .sub-menu{ display:block; }

/* Dropdown links */
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul .sub-menu a{
  display:flex; align-items:center; gap:.5rem; padding:.5rem .55rem;
  border-radius:8px; color:#111; text-decoration:none;
}
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul .sub-menu a:hover,
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul .sub-menu a:focus{ background:#f3f7fb; }
#yfcc-nav.yfcc-nav .yfcc-nav__menu-ul li.menu-item-has-children > a::after{ content:"▾"; margin-left:.35rem; font-size:.8em; color:#666; }

/* =========================================
   MARQUEE (banner)
   ========================================= */
.yfcc-nav .yfcc-nav__marquee{
  height:var(--yfcc-banner-h,40px);
  display:flex; align-items:center;
  background:var(--yfcc-banner-bg,#0b66c3);
  color:var(--yfcc-banner-tc,#fff);
  font-size:var(--yfcc-banner-fs,14px);
  overflow:hidden; white-space:nowrap; width:100%; line-height:1.2;
}
.yfcc-nav .yfcc-nav__marquee-track{
  display:inline-block; padding-left:100%;
  animation:yfcc-nav-marquee var(--yfcc-banner-speed,18s) linear infinite;
  will-change:transform;
}
@keyframes yfcc-nav-marquee{
  0%{   transform:translateX(calc( 100% * var(--yfcc-banner-dir,1))); }
  100%{ transform:translateX(calc(-100% * var(--yfcc-banner-dir,1))); }
}

/* =========================================
   OFF-CANVAS (mobile drawer)
   ========================================= */
#yfcc-offcanvas{
  position:fixed; inset:0 auto 0 0; width:100%; max-width:100%;
  pointer-events:none; visibility:hidden; z-index:10050;
}
#yfcc-offcanvas .yfcc-offcanvas__panel{
  position:absolute; top:0; left:0; height:100%; width:300px;
  background:#fff; color:#000; box-shadow:2px 0 30px rgba(0,0,0,.15);
  transform:translateX(-100%); transition:transform .28s ease; outline:none;
}
#yfcc-offcanvas.is-open{ pointer-events:auto; visibility:visible; }
#yfcc-offcanvas.is-open .yfcc-offcanvas__panel{ transform:translateX(0); }

.yfcc-offcanvas__head{
  position:sticky; top:0; z-index:2;
  display:flex; align-items:center; justify-content:space-between;
  padding:.75rem 1rem; background:#fff; border-bottom:1px solid #eee;
}
.yfcc-offcanvas__title{ font-weight:700; }
.yfcc-offcanvas__close{
  background:none; border:1px solid #d9d9d9; border-radius:6px;
  padding:.35rem .6rem; cursor:pointer; font-size:.95rem; color:#000; font-weight:700;
}
.yfcc-offcanvas__body{ padding:.5rem 1rem 1rem; overflow:auto; height:calc(100% - 54px); }

/* Hide inline nav on mobile (drawer takes over) */
@media (max-width:768px){
  #yfcc-nav.yfcc-nav nav#yfcc-nav__menu{ display:none !important; }
}

/* Drawer: FORCE single-column grid (top level) */
@media (max-width:768px){
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul,
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer > ul{
    display:grid !important;
    grid-template-columns: 1fr !important;
    gap: 10px 12px !important;
    margin: 0 !important;
    padding: 12px !important;
    list-style: none !important;
    box-sizing: border-box;
  }
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul > li > a{
    display:flex; align-items:center; justify-content:space-between; gap:8px;
    padding:10px 12px; border:1px solid #e9e9e9; border-radius:10px;
    background:#fff; color:#111; font-weight:600; text-decoration:none; line-height:1.25;
  }
  /* Submenus under parent (vertical) */
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > .sub-menu{
    display:none !important; position:static !important; margin:6px 0 0; padding:6px 0 0; border:0;
  }
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li.is-expanded > .sub-menu{
    display:block !important;
  }
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul .sub-menu > li > a{
    display:block; padding:8px 10px; border-radius:8px;
    border:1px solid #ececec; background:#fafafa; color:#111; text-decoration:none; margin-bottom:6px;
  }
}

/* A11y: focus ring */
#yfcc-nav a:focus,
#yfcc-offcanvas a:focus,
.yfcc-offcanvas__close:focus{ outline:2px solid #0b66c3; outline-offset:2px; }

/* =========================
   Drawer: Expanded Tree (no hover needed)
   ========================= */
@media (max-width:768px){
  /* scope only to the drawer menu id */
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer{
    --yfcc-tree-pad-x: 12px;
    --yfcc-tree-line: #e7e7e7;
    --yfcc-tree-dot:  #bdbdbd;
  }

  /* Top UL → block list */
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul{
    display:block !important;
    margin:0 !important; padding:8px var(--yfcc-tree-pad-x) 12px var(--yfcc-tree-pad-x) !important;
    list-style:none !important;
  }

  /* Submenus are always visible (= expanded tree) */
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > .sub-menu{
    display:block !important; position:static !important;
    margin:6px 0 8px 14px; padding:0 0 0 12px; border:0; box-shadow:none;
    border-left:1px solid var(--yfcc-tree-line);
  }

  /* Tree branches + nodes */
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li{
    position:relative; margin:0; padding:0; min-width:0;
  }
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > a{
    display:flex; align-items:center; gap:.55rem;
    padding:8px 10px; border-radius:8px;
    text-decoration:none; color:#111;
  }
  /* dot at each node */
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > a::before{
    content:""; width:6px; height:6px; border-radius:50%;
    background:var(--yfcc-tree-dot);
    display:inline-block; flex:0 0 6px;
  }
  /* subtle hover */
  #yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > a:hover{
    background:#f6f8fb;
  }

  /* Parent caret button (if JS injects it) */
  #yfcc-offcanvas .yfcc-tree__toggle{
    appearance:none; border:0; background:transparent; cursor:pointer;
    width:28px; height:28px; border-radius:6px;
    display:inline-flex; align-items:center; justify-content:center;
    margin-left:-4px; margin-right:2px;
  }
  #yfcc-offcanvas .yfcc-tree__toggle:focus{ outline:2px solid #0b66c3; outline-offset:2px; }
  #yfcc-offcanvas .yfcc-tree__toggle::before{
    content:"▾"; font-size:.95rem; line-height:1; opacity:.85;
  }
  #yfcc-offcanvas li.is-collapsed > .yfcc-tree__toggle::before{ content:"▸"; }

  /* When collapsed via JS, hide subtree (overrides default always-expanded) */
  #yfcc-offcanvas li.is-collapsed > .sub-menu{ display:none !important; }
}

/* Drawer: tree layout, no bullets, tiny chevrons */
#yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul,
#yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul ul{
  list-style:none; margin:0; padding:0;
}
#yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li::marker{ content:""; }
#yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > a::before{ content:none; }

#yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > .sub-menu{
  display:block; position:static; margin:6px 0 8px 14px; padding:0 0 0 12px;
  border-left:1px solid #e7e7e7; box-shadow:none; border:0;
}
#yfcc-offcanvas nav#yfcc-nav__menu--drawer li.is-collapsed > .sub-menu{ display:none; }

/* tiny icon-only toggle + rotation handled by JS */
#yfcc-offcanvas .yfcc-tree__toggle{
  appearance:none; background:none; border:0;
  width:16px; height:16px; padding:0; margin:0 6px 0 0;
  display:inline-flex; align-items:center; justify-content:center; line-height:1; flex:0 0 16px;
}
#yfcc-offcanvas .yfcc-tree__chev{
  width:12px; height:12px; display:block; stroke:#333; stroke-width:2; fill:none;
  transition:transform .16s ease; transform:rotate(0deg);
}
#yfcc-offcanvas li.is-collapsed > a > .yfcc-tree__toggle > svg.yfcc-tree__chev{ transform:rotate(-90deg); }

#yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > a{
  display:flex; align-items:center; gap:.4rem; padding:8px 8px; border-radius:8px; color:#111; text-decoration:none;
}
#yfcc-offcanvas nav#yfcc-nav__menu--drawer .yfcc-nav__menu-ul li > a:hover{ background:#f6f8fb; }
/*login*/
/* ===== After-login pill (avatar + name + chevron) ===== */
.yfcc-auth.yfcc-auth--user{ position:relative; display:inline-flex; }

.yfcc-auth__toggle{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.35rem .6rem .35rem .35rem;
  border-radius:999px;
  border:1px solid rgba(0,0,0,.07);
  background:
    radial-gradient(120% 120% at 0% 0%, #ffffff 0%, #f9fbff 60%, #f3f6ff 100%);
  box-shadow:
    0 1px 2px rgba(0,0,0,.06),
    0 6px 18px rgba(64,104,255,.10); /* soft blue glow */
  transition: box-shadow .18s ease, transform .12s ease, border-color .18s ease, background .18s ease;
  cursor:pointer;
  will-change: transform;
}

.yfcc-auth__toggle:hover{
  transform: translateY(-1px);
  box-shadow:
    0 2px 6px rgba(0,0,0,.08),
    0 10px 26px rgba(64,104,255,.16);
  border-color: rgba(64,104,255,.22);
}

.yfcc-auth__toggle:active{
  transform: translateY(0);
  box-shadow:
    0 1px 3px rgba(0,0,0,.10),
    0 6px 16px rgba(64,104,255,.12);
}

/* focus ring (keyboard a11y) */
.yfcc-auth__toggle:focus-visible{
  outline: none;
  box-shadow:
    0 0 0 2px #fff,
    0 0 0 4px rgba(64,104,255,.55),
    0 10px 26px rgba(64,104,255,.18);
  border-color: rgba(64,104,255,.35);
}

/* avatar + name + chevron */
.yfcc-auth__avatar{ width:28px; height:28px; border-radius:50%; box-shadow:0 0 0 1px #fff, 0 1px 2px rgba(0,0,0,.08); }
.yfcc-auth__name{ font-weight:800; color:#0f766e; letter-spacing:.1px; }
.yfcc-auth__chev{ width:14px; height:14px; opacity:.8; transition: transform .16s ease; }
.yfcc-auth__toggle[aria-expanded="true"] .yfcc-auth__chev{ transform: rotate(180deg); }

/* ===== Dropdown ===== */
.yfcc-auth__dropdown{
  position:absolute; right:0; top:calc(100% + 8px);
  min-width:240px; padding:.4rem;
  background:#fff; border:1px solid rgba(0,0,0,.06); border-radius:14px;
  box-shadow:
    0 12px 32px rgba(9, 30, 66, .18),
    0 2px 6px rgba(9, 30, 66, .06);
  z-index:10060;
}

.yfcc-auth__option{
  display:flex; align-items:center; gap:.55rem;
  padding:.6rem .65rem; border-radius:10px;
  color:#111; text-decoration:none; font-weight:600;
  transition: background .12s ease, transform .08s ease;
}
.yfcc-auth__option:hover{ background:#f4f7ff; }
.yfcc-auth__option:active{ transform: translateY(1px); }

.yfcc-auth__highlight{
  background: linear-gradient(90deg, #f7f9ff 0%, #eef3ff 100%);
  border:1px solid rgba(64,104,255,.16);
}
.yfcc-auth__highlight:hover{
  background: linear-gradient(90deg, #f1f5ff 0%, #e6eeff 100%);
}

.yfcc-auth__logout{ color:#9b1111; }
.yfcc-auth__logout:hover{ background:#fff3f3; }

/* small separators (optional) */
.yfcc-auth__dropdown [role="menuitem"] + [role="menuitem"]{ margin-top:2px; }

/* Dark mode polish */
@media (prefers-color-scheme: dark){
  .yfcc-auth__toggle{
    border-color: rgba(255,255,255,.08);
    background: radial-gradient(120% 120% at 0% 0%, #2a2f3a 0%, #202532 60%, #1b2030 100%);
    box-shadow:
      0 1px 2px rgba(0,0,0,.35),
      0 10px 26px rgba(64,104,255,.22);
  }
  .yfcc-auth__name{ color:#ff615e; }
  .yfcc-auth__menu{
    background:#1f2433; border-color: rgba(255,255,255,.08);
    box-shadow: 0 12px 32px rgba(0,0,0,.55), 0 2px 6px rgba(0,0,0,.35);
  }
  .yfcc-auth__option{ color:#e9ecf5; }
  .yfcc-auth__option:hover{ background:#2a3350; }
  .yfcc-auth__highlight{ background: linear-gradient(90deg, #1f2845 0%, #1c2540 100%); border-color: rgba(128,164,255,.25); }
  .yfcc-auth__logout{ color:#ff8a8a; }
  .yfcc-auth__logout:hover{ background:#3a1e22; }
}
.yfcc-auth__dot{
  width:8px; height:8px; border-radius:50%;
  background:#23c55e; box-shadow:0 0 0 2px #fff; /* border on light bg */
}
@media (prefers-color-scheme: dark){
  .yfcc-auth__dot{ box-shadow:0 0 0 2px #1f2433; }
}

/* ===== Guest “Sign in” pill ===== */
.yfcc-auth.yfcc-auth--guest.yfcc-button{
  display:inline-flex; align-items:center; gap:.5rem;
  padding:.45rem .75rem;
  border-radius:999px;
  border:1px solid rgba(0,0,0,.07);
  background:
    radial-gradient(120% 120% at 0% 0%, #ffffff 0%, #f9fbff 60%, #f3f6ff 100%);
  box-shadow:
    0 1px 2px rgba(0,0,0,.06),
    0 6px 18px rgba(64,104,255,.10);
  text-decoration:none;
  font-weight:800;
  color:RED;             /*#1f2937 slate-800 */
  line-height:1;
  transition: box-shadow .18s ease, transform .12s ease, border-color .18s ease, background .18s ease;
}

.yfcc-auth.yfcc-auth--guest.yfcc-button:hover{
  transform: translateY(-1px);
  box-shadow:
    0 2px 6px rgba(0,0,0,.08),
    0 10px 26px rgba(64,104,255,.16);
  border-color: rgba(64,104,255,.22);
}

.yfcc-auth.yfcc-auth--guest.yfcc-button:active{
  transform: translateY(0);
  box-shadow:
    0 1px 3px rgba(0,0,0,.10),
    0 6px 16px rgba(64,104,255,.12);
}

.yfcc-auth.yfcc-auth--guest.yfcc-button:focus-visible{
  outline:none;
  box-shadow:
    0 0 0 2px #fff,
    0 0 0 4px rgba(64,104,255,.55),
    0 10px 26px rgba(64,104,255,.18);
  border-color: rgba(64,104,255,.35);
}

/* Optional: add a small leading icon on Sign in (if you wrap an <svg> in the link) */
.yfcc-button .icon{ width:16px; height:16px; opacity:.9; display:inline-block; }

/* Dark mode polish */
@media (prefers-color-scheme: dark){
  .yfcc-auth.yfcc-auth--guest.yfcc-button{
    border-color: rgba(255,255,255,.08);
    background: radial-gradient(120% 120% at 0% 0%, #2a2f3a 0%, #202532 60%, #1b2030 100%);
    box-shadow:
      0 1px 2px rgba(0,0,0,.35),
      0 10px 26px rgba(64,104,255,.22);
    color:#e5e7eb; /* light text */
  }
}