/* Day / night theme for zanhridoy.com. Night is the original design; day is applied with data-theme="light". */

html[data-theme="light"]{
  --bg:#FAF8F5;--surface:#FFFFFF;--surface-2:#F0ECE6;--line:#E2DDD4;--ink:#16131B;--dim:#625E6A;
  --purple:#8D20BB;--purple-soft:rgba(141,32,187,.10);--on-purple:#FFFFFF;
  --orange:#8D20BB;--orange-soft:rgba(141,32,187,.10);--on-orange:#FFFFFF;
  color-scheme:light;
}
html[data-theme="dark"]{color-scheme:dark;}

html[data-theme="light"] .nav{background:rgba(250,248,245,.85);border-bottom-color:rgba(22,19,27,.10);}
html[data-theme="light"] .btn.ghost{border-color:rgba(22,19,27,.35);}
html[data-theme="light"] .bgword{background:linear-gradient(180deg,#E7E2D9 0%,#EEEAE3 55%,#F3F0EA 100%);-webkit-background-clip:text;background-clip:text;}
html[data-theme="light"] .hero-quote{color:var(--dim);}
html[data-theme="light"] .cloud{filter:drop-shadow(0 8px 10px rgba(141,32,187,.18));}
html[data-theme="light"] .person{filter:drop-shadow(0 24px 40px rgba(22,19,27,.28));}
html[data-theme="light"] .pill{box-shadow:0 12px 30px rgba(22,19,27,.18);}
html[data-theme="light"] .sun{box-shadow:0 0 60px 10px rgba(141,32,187,.30),0 0 160px 40px rgba(141,32,187,.14);}
html[data-theme="light"] .post-body{color:#2A2630;}
html[data-theme="light"] .form-banner.ok{color:#1F7A2A;}
html[data-theme="light"] .form-banner.err{color:#B3261E;}

/* Theme toggle button (injected into the nav by theme.js) */
.theme-toggle{appearance:none;display:inline-flex;align-items:center;justify-content:center;flex:0 0 auto;width:40px;height:40px;margin-left:12px;padding:0;border-radius:50%;border:1px solid var(--line);background:var(--surface-2);color:var(--ink);cursor:pointer;transition:transform .15s,border-color .15s;}
.theme-toggle:hover{border-color:var(--purple);transform:rotate(12deg);}
.theme-toggle svg{width:20px;height:20px;}
.theme-toggle .i-moon{display:none;}
html[data-theme="light"] .theme-toggle .i-sun{display:none;}
html[data-theme="light"] .theme-toggle .i-moon{display:inline;}
html.theme-anim,html.theme-anim *{transition:background-color .3s ease,color .3s ease,border-color .3s ease !important;}

/* Phones: logo on the left; day/night button, then the menu button, on the right */
@media (max-width:760px){
  .nav .theme-toggle{margin-left:auto;order:2;width:38px;height:38px;border:0;background:transparent;}
  .nav .theme-toggle svg{width:22px;height:22px;}
  .nav .nav-toggle{order:3;margin-left:-12px;}
  .nav .nav-links{order:4;}
  .nav:not(.has-toggle) .nav-links{order:1;margin-left:auto;}
  .nav:not(.has-toggle) .theme-toggle{margin-left:0;}
}

/* Language switch (blog list and posts) */
.lang-switch{display:inline-flex;gap:4px;margin:0 0 18px;padding:4px;background:var(--surface-2);border:1px solid var(--line);border-radius:999px;}
.lang-btn{appearance:none;border:0;background:transparent;color:var(--dim);font:inherit;font-size:.85rem;font-weight:700;padding:6px 16px;border-radius:999px;cursor:pointer;}
.lang-btn:hover{color:var(--ink);}
.lang-btn.active{background:var(--purple);color:var(--on-purple);}
[lang="bn"]{font-family:"Hind Siliguri","Noto Sans Bengali","Segoe UI",system-ui,sans-serif;}