:root { 
  --bg: #f1f5f9; --card: #ffffff; --text: #0f172a; --label: #64748b;
  --header-bg: #1e293b; --header-text: #ffffff;
  --input-bg: #ffffff; --input-border: #cbd5e1;
  --accent: #3b82f6; --success: #10b981; --danger: #ef4444;
  --card-inner: #f8fafc;
 }
 [data-theme="dark"] {
  --bg: #020617; --card: #111827; --text: #f1f5f9; --label: #94a3b8;
  --header-bg: #0f172a; --header-text: #f8fafc;
  --input-bg: #1f2937; --input-border: #374151;
  --card-inner: #1f2937;
 }

 #auth-screen, #main-app { display: none; }

 /* LOGIN PAGE DESIGN */
 #auth-screen {
  background-color: #64748b; 
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  height: 100vh; position: fixed; inset: 0; z-index: 9999; text-align: center; color: white;
 }
 .login-circle {
  width: 110px; height: 110px; border: 2.5px solid #5eead4; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  background: rgba(255,255,255,0.1); margin-bottom: 25px;
 }
 .login-title { font-size: 38px; letter-spacing: 5px; font-weight: 800; margin: 0; color: white; }
 .login-subtitle { font-size: 13px; letter-spacing: 4px; color: #5eead4; text-transform: uppercase; margin-bottom: 15px; }
 .login-gujarati { font-size: 16px; color: #e2e8f0; margin-bottom: 45px; opacity: 0.9; }
 .google-btn { 
  width: 85%; max-width: 320px; background: rgba(255,255,255,0.15); border: 1px solid rgba(255,255,255,0.4); 
  border-radius: 40px; padding: 15px; color: white; font-size: 18px; font-weight: 600; 
  display: flex; align-items: center; justify-content: center; gap: 12px; cursor: pointer;
  backdrop-filter: blur(8px);
 }
 .g-icon-wrapper { background: white; border-radius: 50%; width: 28px; height: 28px; display: flex; align-items: center; justify-content: center; }

 #auth-screen:not([style*="display: none"]) ~ .navbar { display: none; }

 /* APP STYLES */
 * { margin: 0; padding: 0; box-sizing: border-box; font-family: 'Segoe UI', sans-serif; transition: background 0.3s; }
 body { background: var(--bg); color: var(--text); padding-bottom: 70px; }
 .navbar { display: flex; background: var(--header-bg); color: var(--header-text); justify-content: space-between; align-items: center; padding: 0 20px; height: 60px; position: sticky; top: 0; z-index: 1000; }
 .container { max-width: 500px; margin: 0 auto; padding: 20px; display: none; }
 .container.active { display: block; }
 h2 { font-size: 24px; margin-bottom: 20px; font-weight: 700; }
 .main-card { background: var(--card); padding: 20px; border-radius: 16px; margin-bottom: 20px; box-shadow: 0 4px 20px rgba(0,0,0,0.1); }
 .dept-card { background: var(--card); padding: 16px; border-radius: 14px; margin-bottom: 15px; border-left: 4px solid var(--accent); box-shadow: 0 2px 10px rgba(0,0,0,0.05); }
 .dept-card h3 { font-size: 16px; margin-bottom: 12px; color: var(--accent); }
 .section-label { font-size: 11px; color: #fbbf24; font-weight: 700; text-transform: uppercase; margin-bottom: 10px; display: block; }
 .input-label { font-size: 10px; color: var(--label); font-weight: 700; text-transform: uppercase; margin-bottom: 8px; display: block; }
 input, select { width: 100%; padding: 14px; border: 1px solid var(--input-border); border-radius: 10px; margin-bottom: 20px; font-size: 16px; background: var(--input-bg); color: var(--text); outline: none; }
 .segment-container { display: flex; flex-wrap: wrap; gap: 8px; margin-bottom: 20px; }
 .segment-btn { padding: 10px 14px; border-radius: 20px; border: none; background: var(--card-inner); color: var(--label); font-size: 12px; font-weight: 600; cursor: pointer; transition: 0.2s; display: flex; align-items: center; gap: 6px; }
 .segment-btn.active { background: var(--accent); color: white; }
 .bottom-nav { position: fixed; bottom: 0; left: 0; right: 0; background: var(--header-bg); display: flex; height: 65px; border-top: 1px solid rgba(255,255,255,0.1); z-index: 1000; }
 .nav-item { flex: 1; display: flex; flex-direction: column; align-items: center; justify-content: center; color: var(--label); cursor: pointer; font-size: 10px; gap: 4px; }
 .nav-item.active { color: var(--accent); }
 .nav-icon { font-size: 18px; }
 .btn { width: 100%; padding: 16px; border: none; border-radius: 12px; font-weight: 700; cursor: pointer; font-size: 15px; display: flex; align-items: center; justify-content: center; gap: 10px; }
 .btn-green { background: var(--success); color: white; }
 .btn-blue { background: var(--accent); color: white; }
 .report-item { background: var(--card-inner); border-radius: 10px; padding: 12px; margin-bottom: 8px; display: flex; justify-content: space-between; align-items: center; }
 .report-info b { font-size: 14px; display: block; margin-bottom: 2px; }
 .report-info small { color: var(--label); font-size: 11px; }
 .val-text { font-size: 16px; font-weight: 700; text-align: right; }
 .summary-grid { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 10px; background: var(--card); padding: 20px; border-radius: 16px; margin-bottom: 20px; text-align: center; }
 .summary-grid h3 { font-size: 20px; margin-bottom: 4px; }
 .summary-grid small { color: var(--label); font-size: 11px; text-transform: uppercase; font-weight: 700; }
 .side-menu { position: fixed; top: 0; right: -280px; width: 280px; height: 100%; background: var(--card); z-index: 2000; transition: 0.3s; padding: 25px; overflow-y: auto; }
 .side-menu.open { right: 0; }
 .overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.6); z-index: 1500; }
 .overlay.active { display: block; }
 .modal-overlay { display: none; position: fixed; inset: 0; background: rgba(0,0,0,0.8); z-index: 3000; align-items: center; justify-content: center; padding: 20px; }
 .modal-overlay.active { display: flex; }
 .modal-card { background: var(--card); width: 100%; max-width: 400px; padding: 25px; border-radius: 20px; max-height: 90vh; overflow-y: auto; }

 /* UPDATE BANNER */
 #update-banner { display: none; background: #3b82f6; color: white; text-align: center; padding: 12px; position: fixed; top: 0; left: 0; right: 0; z-index: 9999; font-weight: 600; font-size: 14px; box-shadow: 0 2px 10px rgba(0,0,0,0.2); }
 #update-banner button { background: white; color: #3b82f6; border: none; padding: 6px 14px; margin-left: 10px; border-radius: 15px; cursor: pointer; font-weight: 700; }
 /* INSTALL BANNER */
 #install-banner {
   display: none;
   position: fixed;
   left: 12px;
   right: 12px;
   bottom: 16px;
   z-index: 9999;
   background: linear-gradient(135deg, #16a34a, #15803d);
   color: #fff;
   padding: 16px 18px;
   border-radius: 16px;
   box-shadow: 0 8px 24px rgba(0,0,0,0.35);
   align-items: center;
   gap: 12px;
   flex-wrap: wrap;
 }
 #install-banner span:first-child {
   flex: 1 1 200px;
   font-size: 16px;
   font-weight: 700;
   line-height: 1.35;
 }
 #install-banner button {
   background: #fff;
   color: #15803d;
   border: none;
   padding: 10px 22px;
   border-radius: 999px;
   cursor: pointer;
   font-weight: 800;
   font-size: 15px;
   box-shadow: 0 2px 6px rgba(0,0,0,0.2);
 }
 #install-banner span[onclick] {
   font-size: 20px;
   font-weight: 800;
   padding: 4px 8px;
   opacity: 0.9;
 }
 @media (max-width: 420px) {
   #install-banner { flex-direction: column; align-items: stretch; text-align: center; }
   #install-banner button { width: 100%; }
 }
 /* ADSENSE HOLDER */
 .adsense-box { width: 100%; min-height: 90px; background: transperant; border: none; border-radius: 10px; display: flex; align-items: center; justify-content: center; margin-bottom: 20px; color: var(--label); font-size: 12px; }
/* REFERRAL BANNER */
 #referral-banner {
   display: none;
   background: linear-gradient(135deg, #f59e0b, #d97706);
   color: #fff;
   padding: 14px 16px;
   border-radius: 14px;
   margin-bottom: 16px;
   align-items: center;
   gap: 10px;
   flex-wrap: wrap;
   box-shadow: 0 4px 14px rgba(0,0,0,0.25);
 }
 #referral-banner .referral-text {
   flex: 1 1 200px;
   font-size: 14.5px;
   font-weight: 700;
   line-height: 1.4;
 }
 #referral-banner button {
   background: #fff;
   color: #b45309;
   border: none;
   padding: 9px 18px;
   border-radius: 999px;
   font-weight: 800;
   font-size: 14px;
   cursor: pointer;
 }
 #referral-banner .referral-close {
   font-size: 18px;
   font-weight: 800;
   cursor: pointer;
   opacity: 0.9;
   padding: 4px 6px;
 }
 /* SCANNER UI */
 #scanner-reader { width: 100%; background: #000; border-radius: 12px; overflow: hidden; }
 .input-group { display: flex; gap: 8px; margin-bottom: 20px; }
 .input-group input { margin-bottom: 0; flex: 1; }
 .scan-btn-inline { padding: 0 16px; border-radius: 10px; border: 1px solid var(--input-border); background: var(--card-inner); color: var(--text); cursor: pointer; font-size: 18px; display: flex; align-items: center; justify-content: center; }
 .delete-shape-btn { margin-left: 4px; color: var(--danger); font-size: 11px; cursor: pointer; border: none; background: none; }
 .shape-list-item { display: flex; justify-content: space-between; align-items: center; background: var(--card-inner); padding: 10px 14px; border-radius: 8px; margin-bottom: 8px; font-size: 14px; }

  /* APP LOADING / SPLASH SCREEN — logo only */
  #app-loading {
    position: fixed;
    inset: 0;
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    background:
      radial-gradient(circle at 50% 43%, rgba(37,99,235,.22) 0%, transparent 34%),
      radial-gradient(circle at 18% 18%, rgba(56,189,248,.10) 0%, transparent 30%),
      radial-gradient(circle at 84% 82%, rgba(59,130,246,.10) 0%, transparent 32%),
      linear-gradient(145deg, #020617 0%, #08152f 50%, #020617 100%) !important;
    color: #fff;
    font-family: 'Segoe UI', sans-serif;
  }

  #app-loading::before {
    content: '';
    position: absolute;
    width: 70vw;
    height: 70vw;
    max-width: 560px;
    max-height: 560px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(59,130,246,.16) 0%, rgba(14,165,233,.06) 35%, transparent 70%);
    filter: blur(24px);
    pointer-events: none;
    z-index: 0;
  }

  #app-loading::after {
    content: '';
    position: absolute;
    inset: 0;
    pointer-events: none;
    z-index: 0;
    background: radial-gradient(ellipse at center, transparent 42%, rgba(0,0,0,.28) 100%);
  }

  .loading-logo-wrap {
    position: relative;
    z-index: 2;
    width: min(84vw, 390px);
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: loadingLogoFloat 3s ease-in-out infinite;
  }

  .loading-logo-wrap::before { display: none !important; }

  .loading-logo {
    position: relative;
    z-index: 1;
    display: block;
    width: 100%;
    height: 100%;
    object-fit: contain;
    background: transparent !important;
    border: 0 !important;
    box-shadow: none !important;
    filter: drop-shadow(0 0 20px rgba(59,130,246,.34)) drop-shadow(0 18px 32px rgba(0,0,0,.42));
    user-select: none;
    -webkit-user-drag: none;
  }

  @keyframes loadingLogoFloat {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-6px) scale(1.008); }
  }

  @media (max-width: 600px) {
    .loading-logo-wrap { width: min(86vw, 340px); }
  }

  @media (prefers-reduced-motion: reduce) {
    .loading-logo-wrap { animation: none; }
  }

  /* Subtle diamond/faceted light effect behind the logo */
  #app-loading::after {
    content: "";
    position: absolute;
    inset: -25%;
    z-index: 0;
    pointer-events: none;
    opacity: .24;
    background:
      linear-gradient(135deg, transparent 46%, rgba(96, 165, 250, .16) 47%, transparent 48%),
      linear-gradient(45deg, transparent 46%, rgba(125, 211, 252, .12) 47%, transparent 48%);
    background-size: 150px 150px;
    transform: rotate(8deg);
    mask-image: radial-gradient(circle, black 0%, transparent 68%);
    -webkit-mask-image: radial-gradient(circle, black 0%, transparent 68%);
  }

  .loading-logo-wrap {
    position: relative;
    z-index: 2;
    width: min(78vw, 360px);
    aspect-ratio: 1 / 1;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: loadingLogoFloat 2.8s ease-in-out infinite;
  }

  .loading-logo-wrap::before {
    content: "";
    position: absolute;
    inset: 7%;
    border-radius: 28%;
    background: rgba(15, 23, 42, .34);
    border: 1px solid rgba(147, 197, 253, .20);
    box-shadow:
      0 0 55px rgba(37, 99, 235, .22),
      inset 0 1px 0 rgba(255,255,255,.10);
    backdrop-filter: blur(7px);
    -webkit-backdrop-filter: blur(7px);
  }

  .loading-logo {
    position: relative;
    z-index: 1;
    width: 100%;
    height: 100%;
    object-fit: contain;
    filter:
      drop-shadow(0 0 18px rgba(59, 130, 246, .38))
      drop-shadow(0 18px 35px rgba(0,0,0,.38));
    user-select: none;
    -webkit-user-drag: none;
  }

  @keyframes loadingLogoFloat {
    0%, 100% { transform: translateY(0) scale(1); }
    50% { transform: translateY(-7px) scale(1.012); }
  }

  @media (max-width: 600px) {
    .loading-logo-wrap {
      width: min(82vw, 330px);
    }
  }

  @media (prefers-reduced-motion: reduce) {
    .loading-logo-wrap {
      animation: none;
    }
  }

/* =========================================================
   DIAMOND GLASSMORPHISM BACKGROUND
   Put light-bg.png and dark-bg.png in the same folder as index.html.
   ========================================================= */
html, body {
  min-height: 100%;
}

body {
  position: relative;
  isolation: isolate;
  background: var(--bg) !important;
  color: var(--text);
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: -2;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(255,255,255,.30), rgba(255,255,255,.30)),
    url("./light-bg.png");
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  transform: translateZ(0);
}

[data-theme="dark"] body::before {
  background-image:
    linear-gradient(rgba(2,6,23,.28), rgba(2,6,23,.28)),
    url("./dark-bg.png");
}

/* Keep app content above the background layer */
.navbar,
#main-app,
#update-banner {
  position: relative;
  z-index: 1;
}

/* =========================================================
   GLASS CARDS
   ========================================================= */
.main-card,
.dept-card,
.summary-grid,
.modal-card,
.side-menu {
  background: rgba(255,255,255,.48) !important;
  border: 1px solid rgba(255,255,255,.62) !important;
  box-shadow:
    0 8px 32px rgba(15,23,42,.12),
    inset 0 1px 0 rgba(255,255,255,.55) !important;
  backdrop-filter: blur(18px) saturate(145%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
}

[data-theme="dark"] .main-card,
[data-theme="dark"] .dept-card,
[data-theme="dark"] .summary-grid,
[data-theme="dark"] .modal-card,
[data-theme="dark"] .side-menu {
  background: rgba(15,23,42,.50) !important;
  border-color: rgba(148,163,184,.20) !important;
  box-shadow:
    0 10px 34px rgba(0,0,0,.34),
    inset 0 1px 0 rgba(255,255,255,.08) !important;
}

/* =========================================================
   GLASS INPUTS / SELECTS
   ========================================================= */
input,
select,
.segment-btn,
.scan-btn-inline {
  background: rgba(255,255,255,.42) !important;
  border: 1px solid rgba(255,255,255,.60) !important;
  backdrop-filter: blur(12px) saturate(140%);
  -webkit-backdrop-filter: blur(12px) saturate(140%);
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.45),
    0 4px 14px rgba(15,23,42,.05);
}

[data-theme="dark"] input,
[data-theme="dark"] select,
[data-theme="dark"] .segment-btn,
[data-theme="dark"] .scan-btn-inline {
  background: rgba(31,41,55,.52) !important;
  border-color: rgba(148,163,184,.20) !important;
  color: #f1f5f9 !important;
  box-shadow:
    inset 0 1px 0 rgba(255,255,255,.06),
    0 4px 15px rgba(0,0,0,.20);
}

/* Inner/report elements also get the frosted treatment */
.report-item,
.shape-list-item,
.adsense-box {
  background: rgba(255,255,255,.30) !important;
  border-color: rgba(255,255,255,.40) !important;
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
}

[data-theme="dark"] .report-item,
[data-theme="dark"] .shape-list-item,
[data-theme="dark"] .adsense-box {
  background: rgba(31,41,55,.42) !important;
  border-color: rgba(148,163,184,.14) !important;
}

/* =========================================================
   NAVIGATION GLASS
   ========================================================= */
.navbar {
  background: rgba(15, 23, 42, 0.18) !important;
  border-bottom: 1px solid rgba(255, 255, 255, 0.12) !important;
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08) !important;
  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);
}

.bottom-nav {
  position: fixed !important;
  bottom: 0 !important;
  left: 0 !important;
  right: 0 !important;

  background: rgba(15, 23, 42, 0.18) !important;
  border-top: 1px solid rgba(255, 255, 255, 0.12) !important;
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.08) !important;

  backdrop-filter: blur(18px) saturate(150%);
  -webkit-backdrop-filter: blur(18px) saturate(150%);

  z-index: 1000 !important;
}

/* Light mode */
html:not([data-theme="dark"]) .navbar{
  color:#0f172a !important;
},
html:not([data-theme="dark"]) .bottom-nav {
  background: rgba(255, 255, 255, 0.22) !important;
  border-color: rgba(255, 255, 255, 0.45) !important;
  box-shadow: 0 -4px 20px rgba(15, 23, 42, 0.06) !important;
}

/* Dark mode */
html[data-theme="dark"] .navbar,
html[data-theme="dark"] .bottom-nav {
  background: rgba(2, 6, 23, 0.20) !important;
  border-color: rgba(148, 163, 184, 0.16) !important;
}

/* =========================================================
   BUTTON POLISH
   ========================================================= */
.btn {
  box-shadow: 0 6px 18px rgba(15,23,42,.14);
  transition: transform .2s ease, box-shadow .2s ease, filter .2s ease;
}

.btn:active {
  transform: scale(.97);
}

/* =========================================================
   LOGIN / LOADING BACKGROUND
   ========================================================= */
#auth-screen,
#app-loading {
  background-color: #0f172a !important;
  background-image:
    linear-gradient(rgba(15,23,42,.22), rgba(15,23,42,.22)),
    url("./dark-bg.png") !important;
  background-size: cover;
  background-position: center;
}

.login-circle,
.google-btn {
  background: rgba(255,255,255,.13) !important;
  border-color: rgba(255,255,255,.34) !important;
  backdrop-filter: blur(18px) saturate(145%);
  -webkit-backdrop-filter: blur(18px) saturate(145%);
  box-shadow:
    0 8px 30px rgba(0,0,0,.18),
    inset 0 1px 0 rgba(255,255,255,.28);
}

/* Make glass surfaces feel layered without hurting readability */
.main-card,
.dept-card,
.summary-grid,
.modal-card,
.side-menu,
.report-item,
.shape-list-item,
input,
select {
  transition: background .3s ease, border-color .3s ease, box-shadow .3s ease;
}

@media (max-width: 600px) {
  body::before {
    background-position: center center;
  }

  .main-card,
  .dept-card,
  .summary-grid,
  .modal-card,
  .side-menu {
    backdrop-filter: blur(14px) saturate(140%);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
  }
}

 
  /* FINAL LOADING SCREEN OVERRIDE — no spinner, no text, no logo panel */
  #app-loading { background-image: radial-gradient(circle at 50% 43%, rgba(37,99,235,.22) 0%, transparent 34%), radial-gradient(circle at 18% 18%, rgba(56,189,248,.10) 0%, transparent 30%), radial-gradient(circle at 84% 82%, rgba(59,130,246,.10) 0%, transparent 32%), linear-gradient(145deg, #020617 0%, #08152f 50%, #020617 100%) !important; }
  #app-loading::before { background-image: none !important; }
  #app-loading .loading-logo-wrap::before,
  #app-loading .loading-spinner,
  #app-loading .loading-text,
  #app-loading .loading-progress,
  #app-loading .loading-status { display: none !important; }
  
/* LOADING CIRCLE */
#app-loading .loading-spinner{display:block!important;position:absolute;left:50%;bottom:-54px;width:42px;height:42px;margin-left:-21px;border:4px solid rgba(255,255,255,.18);border-top-color:#60a5fa;border-right-color:#38bdf8;border-radius:50%;box-sizing:border-box;animation:loadingSpinner .9s linear infinite;filter:drop-shadow(0 0 8px rgba(56,189,248,.45));}
@keyframes loadingSpinner{to{transform:rotate(360deg)}}
#app-loading .loading-text,#app-loading .loading-progress,#app-loading .loading-status{display:none!important}

/* Selected button highlight */
.segment-btn.active {
  background: #2563eb !important;
  color: #ffffff !important;
  border: 2px solid #60a5fa !important;
  box-shadow: 0 0 12px rgba(37, 99, 235, 0.45) !important;
}

.segment-btn:not(.active) {
  background: var(--card-inner) !important;
  color: var(--label) !important;
  border: 2px solid transparent !important;
}
/* Match dropdown menus with app theme */
select {
  color-scheme: dark;
}
select option {
  background: #111827 !important;
  color: #ffffff !important;
}

/* Light theme */
html:not([data-theme="dark"]) select {
  color-scheme: light;
}
html:not([data-theme="dark"]) select option {
  background: #ffffff !important;
  color: #111827 !important;
}
/* shere button */
.share-btn {
  gap: 6px;
  padding: 8px;
  font-size: 17px;
  border: none;
  background: transparent;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  color: inherit;
}
.shere-btn span{
  font-weight: 500;
}
.share-btn svg {
  width: 22px;
  height: 22px;
  fill: currentColor;
}
/* pdf btn */
.icon-btn  {
  color: currentColor;
  font-weight: 500;
  display: flex;
  align-items: center;
  gap: 5px;
  
}
.icon-btn svg {
  width: 30px;
  height: 30px;
  fill:none;
  stroke:currentColor;
}

/* PREMIUM TOAST MESSAGES */
#toast-root {
  position: fixed; inset: 0;
  z-index: 20000; display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 10px;
  padding: env(safe-area-inset-top, 0px) 14px env(safe-area-inset-bottom, 0px); pointer-events: none;
}
.toast {
  --toast-accent: var(--accent);
  --toast-bg: rgba(255,255,255,0.92); --toast-text: #0f172a;
  --toast-border: rgba(15,23,42,0.10); --toast-shadow: 0 12px 32px rgba(15,23,42,0.20);
  position: relative; overflow: hidden; pointer-events: auto; cursor: pointer;
  display: flex; align-items: center; gap: 12px;
  width: min(100%, 420px); padding: 12px 16px 14px 12px;
  background: var(--toast-bg); color: var(--toast-text);
  border: 1px solid var(--toast-border); border-radius: 18px; box-shadow: var(--toast-shadow);
  -webkit-backdrop-filter: blur(18px) saturate(1.4); backdrop-filter: blur(18px) saturate(1.4);
  font-size: 14px; font-weight: 600; line-height: 1.4; letter-spacing: 0.1px;
  opacity: 0; transform: translateY(12px) scale(0.92);
  transition: opacity 0.28s ease, transform 0.38s cubic-bezier(0.22, 1, 0.36, 1);
}
[data-theme="dark"] .toast {
  --toast-bg: rgba(15,23,42,0.88); --toast-text: #f1f5f9;
  --toast-border: rgba(148,163,184,0.24); --toast-shadow: 0 14px 36px rgba(2,6,23,0.65);
}
.toast.show { opacity: 1; transform: none; }
.toast.hide { opacity: 0; transform: translateY(6px) scale(0.95); transition-duration: 0.20s; }
.toast-success { --toast-accent: #10b981; }
.toast-error   { --toast-accent: #ef4444; }
.toast-warning { --toast-accent: #f59e0b; }
.toast-info    { --toast-accent: #3b82f6; }
.toast-offline { --toast-accent: #38bdf8; }
.toast-icon {
  flex: 0 0 34px; height: 34px; border-radius: 50%;
  display: flex; align-items: center; justify-content: center;
  color: var(--toast-accent);
  background: rgba(148,163,184,0.16);
  background: color-mix(in srgb, var(--toast-accent) 16%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--toast-accent) 40%, transparent);
}
.toast-icon svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 2.2; stroke-linecap: round; stroke-linejoin: round; }
.toast-text { flex: 1; min-width: 0; overflow-wrap: anywhere; }
.toast-bar {
  position: absolute; left: 0; right: 0; bottom: 0; height: 3px;
  background: var(--toast-accent); opacity: 0.85; transform-origin: left center;
  animation: toast-countdown linear forwards;
}
@keyframes toast-countdown { from { transform: scaleX(1); } to { transform: scaleX(0); } }
@media (prefers-reduced-motion: reduce) {
  .toast, .toast.hide { transform: none; transition: opacity 0.15s ease; }
  .toast-bar { animation: none; display: none; }
}

/* UPDATE / OFFLINE BANNERS - always visible at the very top */
#update-banner, #offline-banner {
  position: fixed; top: 0; left: 0; right: 0; z-index: 10001;
  text-align: center; color: #fff; font-weight: 600; font-size: 14px;
  padding: calc(12px + env(safe-area-inset-top, 0px)) 12px 12px;
  box-shadow: 0 2px 10px rgba(0,0,0,0.25);
}
#update-banner { background: #3b82f6; }
#offline-banner { background: #b45309; }