/* Externalized from js/app.js. */
.seen-install-help-modal {
          position: fixed;
          inset: 0;
          z-index: 4000;
          display: none;
          align-items: center;
          justify-content: center;
          padding: 18px;
          background: rgba(2, 6, 23, 0.72);
          backdrop-filter: blur(6px);
        }
        .seen-install-help-modal.open {
          display: flex;
        }
        .seen-install-help-dialog {
          width: min(540px, 100%);
          max-height: min(90vh, 760px);
          overflow: auto;
          border-radius: 18px;
          border: 1px solid rgba(148, 163, 184, 0.3);
          background: linear-gradient(180deg, #101b39 0%, #0b1430 100%);
          color: #e5edff;
          box-shadow: 0 28px 58px rgba(2, 7, 24, 0.55);
          padding: 18px;
          font-family: var(--seen-font);
        }
        .seen-install-help-header {
          display: flex;
          align-items: center;
          justify-content: space-between;
          gap: 10px;
        }
        .seen-install-help-brand {
          width: 38px;
          height: 38px;
          border-radius: 12px;
          overflow: hidden;
          box-shadow: 0 8px 24px rgba(63, 126, 255, 0.35);
        }
        .seen-install-help-brand img {
          display: block;
          width: 100%;
          height: 100%;
          object-fit: cover;
        }
        .seen-install-help-close {
          border: 1px solid rgba(148, 163, 184, 0.36);
          border-radius: 10px;
          background: rgba(15, 27, 58, 0.85);
          color: #dbe7ff;
          width: 36px;
          height: 36px;
          display: grid;
          place-items: center;
          font-size: 24px;
          line-height: 1;
          font-weight: 700;
          padding: 0 0 2px;
          cursor: pointer;
        }
        .seen-install-help-eyebrow {
          margin: 18px 0 5px;
          color: #7fa8ff;
          font-size: 12px;
          font-weight: 800;
          letter-spacing: 0.08em;
          text-transform: uppercase;
        }
        .seen-install-help-content h2 {
          margin: 0;
          color: #f7f9ff;
          font-size: clamp(22px, 6vw, 28px);
          line-height: 1.12;
          letter-spacing: -0.02em;
        }
        .seen-install-help-copy {
          margin: 10px 0 14px;
          color: #bfd0f5;
          line-height: 1.5;
          font-size: 14px;
        }
        .seen-install-help-device-note,
        .seen-install-help-warning {
          display: flex;
          align-items: center;
          gap: 9px;
          margin: 0 0 13px;
          border-radius: 12px;
          padding: 10px 12px;
          font-size: 13px;
          font-weight: 700;
        }
        .seen-install-help-device-note {
          border: 1px solid rgba(78, 204, 151, 0.34);
          background: rgba(16, 107, 75, 0.2);
          color: #baf5dc;
        }
        .seen-install-help-warning {
          border: 1px solid rgba(248, 188, 84, 0.38);
          background: rgba(125, 77, 12, 0.22);
          color: #ffe0a3;
        }
        .seen-install-pulse {
          width: 8px;
          height: 8px;
          flex: 0 0 auto;
          border-radius: 50%;
          background: #55dda7;
          box-shadow: 0 0 0 4px rgba(85, 221, 167, 0.13);
        }
        .seen-install-steps {
          display: grid;
          gap: 9px;
          margin: 0;
          padding: 0;
          list-style: none;
        }
        .seen-install-step {
          display: grid;
          grid-template-columns: 28px 42px minmax(0, 1fr);
          align-items: center;
          gap: 10px;
          border: 1px solid rgba(100, 129, 190, 0.34);
          border-radius: 14px;
          background: rgba(9, 21, 53, 0.7);
          padding: 10px;
        }
        .seen-install-step-number {
          width: 26px;
          height: 26px;
          display: grid;
          place-items: center;
          border-radius: 50%;
          background: rgba(63, 126, 255, 0.18);
          color: #9fbcff;
          font-size: 12px;
          font-weight: 800;
        }
        .seen-install-step-icon {
          width: 40px;
          height: 40px;
          display: grid;
          place-items: center;
          border-radius: 12px;
          background: rgba(49, 91, 183, 0.22);
          color: #a9c3ff;
        }
        .seen-install-step-icon svg {
          width: 22px;
          height: 22px;
          fill: none;
          stroke: currentColor;
          stroke-width: 1.8;
          stroke-linecap: round;
          stroke-linejoin: round;
        }
        .seen-install-step-copy {
          display: grid;
          gap: 2px;
          min-width: 0;
        }
        .seen-install-step-copy strong {
          color: #f2f6ff;
          font-size: 14px;
        }
        .seen-install-step-copy span {
          color: #b8c8eb;
          font-size: 12px;
          line-height: 1.4;
        }
        .seen-install-help-tip {
          margin: 12px 2px 0;
          color: #aebfe4;
          font-size: 12px;
          line-height: 1.45;
        }
        .seen-install-help-tip strong { color: #dfe9ff; }
        .seen-install-copy-link {
          width: 100%;
          margin-top: 12px;
          border: 1px solid rgba(91, 137, 242, 0.62);
          border-radius: 12px;
          background: rgba(31, 74, 168, 0.28);
          color: #eaf0ff;
          padding: 10px 12px;
          font: inherit;
          font-size: 14px;
          font-weight: 800;
          cursor: pointer;
        }
        .seen-install-copy-status {
          min-height: 18px;
          margin: 6px 0 0;
          color: #baf5dc;
          text-align: center;
          font-size: 12px;
        }
        .seen-install-help-actions {
          margin-top: 14px;
          display: flex;
          justify-content: flex-end;
        }
        .seen-install-help-primary {
          border: 1px solid rgba(77, 120, 222, 0.68);
          background: linear-gradient(135deg, #2e66e4, #3f7eff);
          color: #ffffff;
          border-radius: 12px;
          font-size: 14px;
          font-weight: 700;
          padding: 10px 14px;
          cursor: pointer;
        }
        body.seen-install-help-open { overflow: hidden; }
        @media (max-width: 600px) {
          .seen-install-help-modal {
            align-items: flex-end;
            padding: 10px 10px calc(10px + env(safe-area-inset-bottom));
          }
          .seen-install-help-dialog {
            max-height: min(92vh, 760px);
            border-radius: 22px;
            padding: 16px;
          }
          .seen-install-step { grid-template-columns: 26px 38px minmax(0, 1fr); gap: 8px; }
          .seen-install-step-icon { width: 36px; height: 36px; border-radius: 10px; }
        }

/* Externalized from js/app.js. */
.seen-match-celebration {
        position: fixed;
        inset: 0;
        overflow: hidden;
        pointer-events: none;
        z-index: 1400;
      }

      .seen-match-celebration-banner {
        position: absolute;
        left: 50%;
        top: clamp(76px, 17vh, 144px);
        min-width: min(300px, calc(100vw - 32px));
        max-width: min(360px, calc(100vw - 32px));
        padding: 16px 18px 15px;
        border-radius: 20px;
        border: 1px solid rgba(96, 165, 250, 0.44);
        background:
          radial-gradient(circle at top, rgba(125, 211, 252, 0.34), transparent 58%),
          linear-gradient(145deg, rgba(15, 23, 42, 0.98), rgba(29, 78, 216, 0.9));
        box-shadow: 0 22px 60px rgba(2, 6, 23, 0.48);
        backdrop-filter: blur(12px);
        color: #eff6ff;
        text-align: center;
        transform: translate(-50%, -18px) scale(0.94);
        opacity: 0;
        transition: opacity 260ms ease, transform 340ms cubic-bezier(0.22, 1, 0.36, 1);
      }

      .seen-match-celebration.show .seen-match-celebration-banner {
        opacity: 1;
        transform: translate(-50%, 0) scale(1);
      }

      .seen-match-celebration.is-hiding .seen-match-celebration-banner {
        opacity: 0;
        transform: translate(-50%, -12px) scale(0.97);
      }

      .seen-match-celebration-kicker {
        display: inline-flex;
        align-items: center;
        justify-content: center;
        padding: 4px 9px;
        border-radius: 999px;
        border: 1px solid rgba(191, 219, 254, 0.32);
        background: rgba(8, 47, 73, 0.58);
        color: #bae6fd;
        font-size: 10px;
        font-weight: 900;
        letter-spacing: 0.14em;
        text-transform: uppercase;
      }

      .seen-match-celebration-title {
        margin-top: 10px;
        font-size: 28px;
        font-weight: 900;
        letter-spacing: -0.03em;
        line-height: 1;
      }

      .seen-match-celebration-subtitle {
        margin-top: 7px;
        font-size: 13px;
        font-weight: 700;
        color: rgba(219, 234, 254, 0.88);
      }

      .seen-match-celebration-ring,
      .seen-match-celebration-spark {
        position: absolute;
        left: var(--seen-match-origin-x, 50vw);
        top: var(--seen-match-origin-y, 50vh);
        transform: translate(-50%, -50%);
        border-radius: 999px;
        opacity: 0;
      }

      .seen-match-celebration-ring {
        width: 18px;
        height: 18px;
        border: 2px solid rgba(125, 211, 252, 0.42);
        animation: seenMatchRing 920ms ease-out forwards;
        animation-delay: var(--delay, 0ms);
      }

      .seen-match-celebration-spark {
        width: var(--size, 12px);
        height: var(--size, 12px);
        background: var(--color, rgba(96, 165, 250, 0.96));
        box-shadow: 0 0 18px var(--color, rgba(96, 165, 250, 0.96));
        animation: seenMatchSpark 980ms cubic-bezier(0.18, 0.8, 0.24, 1) forwards;
        animation-delay: var(--delay, 0ms);
      }

      .seen-match-hit {
        animation: seenMatchButtonHit 760ms cubic-bezier(0.22, 1, 0.36, 1);
      }

      @keyframes seenMatchRing {
        0% {
          opacity: 0;
          transform: translate(-50%, -50%) scale(0.45);
        }

        20% {
          opacity: 0.85;
        }

        100% {
          opacity: 0;
          transform: translate(-50%, -50%) scale(9.4);
        }
      }

      @keyframes seenMatchSpark {
        0% {
          opacity: 0;
          transform: translate(-50%, -50%) scale(0.2);
        }

        18% {
          opacity: 1;
        }

        100% {
          opacity: 0;
          transform: translate(calc(-50% + var(--dx, 0px)), calc(-50% + var(--dy, 0px))) scale(1.04);
        }
      }

      @keyframes seenMatchButtonHit {
        0% {
          transform: scale(1);
          filter: brightness(1);
        }

        38% {
          transform: scale(1.08);
          filter: brightness(1.08);
        }

        100% {
          transform: scale(1);
          filter: brightness(1);
        }
      }

      @media (prefers-reduced-motion: reduce) {
        .seen-match-celebration-ring,
        .seen-match-celebration-spark,
        .seen-match-hit {
          animation-duration: 0.01ms !important;
          animation-iteration-count: 1 !important;
        }

        .seen-match-celebration-banner {
          transition-duration: 120ms;
        }
      }

/* Externalized from js/app.js. */
#seenQuickBasicsModal {
  position: fixed;
  inset: 0;
  z-index: 3000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgba(2, 6, 23, 0.78);
  backdrop-filter: blur(10px);
}
#seenQuickBasicsModal.open { display: flex; }
#seenQuickBasicsModal .sqb-card {
  width: min(520px, 96vw);
  max-height: min(88vh, 760px);
  overflow: auto;
  border-radius: 18px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: rgba(15, 23, 42, 0.98);
  box-shadow: 0 24px 56px rgba(2, 6, 23, 0.45);
  padding: 18px;
  display: grid;
  gap: 12px;
  color: #e2e8f0;
}
#seenQuickBasicsModal .sqb-title {
  margin: 0;
  font-size: 20px;
  font-weight: 900;
  color: #f8fafc;
}
#seenQuickBasicsModal .sqb-copy {
  margin: 0;
  line-height: 1.5;
  color: #cbd5e1;
}
#seenQuickBasicsModal .sqb-label {
  display: block;
  margin: 0 0 6px;
  font-size: 12px;
  font-weight: 800;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: #93c5fd;
}
#seenQuickBasicsModal .sqb-select,
#seenQuickBasicsModal .sqb-input {
  width: 100%;
  min-height: 44px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: rgba(2, 6, 23, 0.5);
  color: #e2e8f0;
  padding: 10px 12px;
}
#seenQuickBasicsModal .sqb-choice-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px;
}
#seenQuickBasicsModal .sqb-choice {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 12px;
  border-radius: 12px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  background: rgba(2, 6, 23, 0.38);
  font-size: 13px;
  font-weight: 700;
}
#seenQuickBasicsModal .sqb-choice input {
  width: 16px;
  height: 16px;
  margin: 0;
  accent-color: #2563eb;
}
#seenQuickBasicsModal .sqb-actions {
  display: flex;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}
#seenQuickBasicsModal .sqb-btn {
  min-height: 42px;
  border-radius: 12px;
  padding: 10px 14px;
  border: 1px solid rgba(148, 163, 184, 0.28);
  background: rgba(15, 23, 42, 0.82);
  color: #e2e8f0;
  font-weight: 800;
  cursor: pointer;
}
#seenQuickBasicsModal .sqb-btn.primary {
  border-color: transparent;
  background: linear-gradient(135deg, #2563eb, #06b6d4);
  color: #eff6ff;
}
#seenQuickBasicsModal .sqb-btn[disabled] {
  opacity: 0.6;
  cursor: not-allowed;
}
#seenQuickBasicsModal .sqb-status {
  min-height: 16px;
  font-size: 12px;
  color: #bfdbfe;
}
#seenQuickBasicsModal .sqb-status.error {
  color: #fecaca;
}
@media (max-width: 520px) {
  #seenQuickBasicsModal .sqb-choice-grid {
    grid-template-columns: 1fr;
  }
}

/* Externalized from js/app.js. */
#seenVersionBadge {
  position: fixed;
  left: 10px;
  bottom: 10px;
  z-index: 9999;
  font: 12px/1.2 ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, 'Liberation Mono', monospace;
  color: rgba(226,232,240,.9);
  background: rgba(2,6,23,.72);
  border: 1px solid rgba(148,163,184,.25);
  border-radius: 10px;
  padding: 8px 10px;
  backdrop-filter: blur(10px);
  max-width: 92vw;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
#seenVersionBadge strong { color: #fff; }
#seenVersionBadge .dim { opacity: .75; }

/* Externalized from js/nav.js. */
.nav-report-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,0.6);z-index:3000;}
          .nav-report-modal.open{display:flex;}
          .nav-report-card{width:min(560px,92vw);max-height:85vh;overflow:auto;background:#0f172a;color:#e5e7eb;border:1px solid rgba(148,163,184,0.18);border-radius:18px;padding:18px 18px 16px;box-shadow:0 24px 60px rgba(15,23,42,0.45);}
          .nav-report-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;}
          .nav-report-title{font-weight:700;font-size:18px;letter-spacing:0.2px;}
          .nav-report-close{background:transparent;border:1px solid rgba(148,163,184,0.3);color:#e2e8f0;border-radius:10px;padding:6px 10px;cursor:pointer;}
          .nav-report-label{display:block;margin:10px 0 6px;font-size:12px;color:#94a3b8;text-transform:uppercase;letter-spacing:0.08em;}
          .nav-report-input{width:100%;min-height:44px;font-size:16px;border-radius:12px;border:1px solid rgba(148,163,184,0.2);background:#0b1220;color:#e5e7eb;padding:10px 12px;resize:vertical;}
          .nav-report-input:focus{outline:2px solid rgba(59,130,246,0.45);border-color:rgba(59,130,246,0.6);}
          .nav-report-hint{margin-top:8px;font-size:12px;color:#94a3b8;}
          .nav-report-options{margin-top:14px;padding:12px;border:1px solid rgba(148,163,184,0.2);border-radius:12px;background:rgba(15,23,42,0.45);}
          .nav-report-option{display:flex;align-items:flex-start;gap:10px;margin:8px 0;}
          .nav-report-option input{margin-top:2px;}
          .nav-report-option-copy{font-size:13px;line-height:1.4;color:#e2e8f0;}
          .nav-report-option-copy strong{font-weight:700;color:#f8fafc;}
          .nav-report-consent{margin-top:8px;font-size:12px;color:#cbd5e1;line-height:1.45;}
          .nav-report-error{min-height:18px;margin-top:8px;font-size:12px;color:#fca5a5;}
          .nav-report-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:12px;}
          .nav-report-btn{border-radius:12px;padding:8px 14px;border:1px solid rgba(148,163,184,0.3);cursor:pointer;font-weight:600;}
          .nav-report-btn.primary{background:#2563eb;border-color:#2563eb;color:#fff;}
          .nav-report-btn.secondary{background:transparent;color:#e2e8f0;}
          .nav-report-btn:disabled{opacity:0.6;cursor:not-allowed;}
          .nav-toast{position:fixed;left:50%;bottom:24px;transform:translateX(-50%);background:#0f172a;color:#e5e7eb;border:1px solid rgba(148,163,184,0.2);border-radius:14px;padding:10px 14px;box-shadow:0 18px 40px rgba(15,23,42,0.4);z-index:3200;max-width:90vw;font-size:14px;opacity:0;transition:opacity .2s ease;}
          .nav-toast.show{opacity:1;}
          .nav-safety-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,0.6);z-index:3000;}
          .nav-safety-modal.open{display:flex;}
          .nav-safety-card{width:min(540px,92vw);max-height:85vh;overflow:auto;background:#0f172a;color:#e5e7eb;border:1px solid rgba(148,163,184,0.18);border-radius:18px;padding:18px;box-shadow:0 24px 60px rgba(15,23,42,0.45);}
          .nav-safety-title{font-weight:800;font-size:18px;margin:0;}
          .nav-safety-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:10px;}
          .nav-safety-close{background:transparent;border:1px solid rgba(148,163,184,0.3);color:#e2e8f0;border-radius:10px;padding:6px 10px;cursor:pointer;}
          .nav-safety-copy{font-size:13px;line-height:1.45;color:#cbd5e1;margin:6px 0;}
          .nav-safety-copy a{color:#ffffff;text-decoration-color:rgba(255,255,255,0.78);}
          .nav-safety-copy a:hover,.nav-safety-copy a:focus-visible{color:#ffffff;text-decoration-color:#ffffff;}
          .nav-safety-label{display:block;margin:12px 0 6px;font-size:12px;color:#94a3b8;text-transform:uppercase;letter-spacing:0.08em;}
          .nav-safety-select{width:100%;min-height:40px;border-radius:10px;border:1px solid rgba(148,163,184,0.3);background:#0b1220;color:#e5e7eb;padding:8px 10px;}
          .nav-safety-presets{display:flex;gap:8px;flex-wrap:wrap;margin:8px 0 0;}
          .nav-safety-chip{border-radius:999px;padding:6px 12px;border:1px solid rgba(59,130,246,0.45);background:rgba(37,99,235,0.12);color:#dbeafe;font-weight:700;font-size:12px;cursor:pointer;}
          .nav-safety-chip[aria-pressed="true"]{background:rgba(37,99,235,0.28);border-color:rgba(37,99,235,0.8);}
          .nav-safety-error{min-height:18px;margin-top:10px;font-size:12px;color:#fca5a5;}
          .nav-safety-actions{display:flex;justify-content:flex-end;gap:10px;margin-top:12px;}
          .nav-safety-btn{border-radius:12px;padding:8px 14px;border:1px solid rgba(148,163,184,0.35);cursor:pointer;font-weight:700;}
          .nav-safety-btn.primary{background:#2563eb;border-color:#2563eb;color:#fff;}
          .nav-safety-btn.secondary{background:transparent;color:#e2e8f0;}
          .nav-safety-btn:disabled{opacity:0.6;cursor:not-allowed;}
          .nav-block-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(0,0,0,0.6);z-index:3000;}
          .nav-block-modal.open{display:flex;}
          .nav-block-card{width:min(520px,92vw);max-height:80vh;overflow:auto;background:#0f172a;color:#e5e7eb;border:1px solid rgba(148,163,184,0.18);border-radius:18px;padding:18px;box-shadow:0 24px 60px rgba(15,23,42,0.45);}
          .nav-block-header{display:flex;align-items:center;justify-content:space-between;gap:12px;margin-bottom:12px;}
          .nav-block-title{font-weight:800;font-size:18px;letter-spacing:0.2px;}
          .nav-block-close{background:transparent;border:1px solid rgba(148,163,184,0.3);color:#e2e8f0;border-radius:10px;padding:6px 10px;cursor:pointer;}
          .nav-block-list{display:flex;flex-direction:column;gap:10px;}
          .nav-block-item{display:flex;align-items:center;justify-content:space-between;gap:12px;border:1px solid rgba(148,163,184,0.18);border-radius:12px;padding:10px 12px;background:rgba(15,23,42,0.6);}
          .nav-block-info{min-width:0;}
          .nav-block-name{font-weight:700;white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
          .nav-block-id{font-size:12px;color:rgba(229,231,235,0.6);white-space:nowrap;overflow:hidden;text-overflow:ellipsis;}
          .nav-block-empty{font-size:13px;color:#94a3b8;padding:8px 0;}
          .nav-block-btn{border-radius:10px;padding:6px 10px;border:1px solid rgba(239,68,68,0.45);background:rgba(239,68,68,0.12);color:#fecaca;font-weight:700;cursor:pointer;white-space:nowrap;}
          .nav-block-status{font-size:12px;color:#94a3b8;white-space:nowrap;}
          body.blocklist-modal-open{overflow:hidden;touch-action:none;}
          body.meet-safety-modal-open{overflow:hidden;touch-action:none;}
          @media (max-width: 720px){
            .nav-block-modal{align-items:flex-start;padding:calc(env(safe-area-inset-top) + 12px) 16px 18px;}
            .nav-block-card{width:100%;border-radius:16px;max-height:82vh;}
            .nav-block-title{font-size:16px;}
          }
          body.report-modal-open{overflow:hidden;touch-action:none;}
          @media (max-width: 720px){
            .nav-report-modal{align-items:flex-start;padding:calc(env(safe-area-inset-top) + 12px) 16px 18px;}
            .nav-report-card{width:100%;border-radius:16px;max-height:82vh;}
            .nav-report-title{font-size:16px;}
            .nav-safety-modal{align-items:flex-start;padding:calc(env(safe-area-inset-top) + 12px) 16px 18px;}
            .nav-safety-card{width:100%;border-radius:16px;max-height:82vh;}
            .nav-safety-title{font-size:16px;}
          }

/* Externalized from js/nav.js. */
.nav-switch-modal{position:fixed;inset:0;display:none;align-items:center;justify-content:center;padding:20px;background:rgba(2,6,23,0.7);z-index:3100;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;}
        .nav-switch-modal.open{display:flex;}
        .nav-switch-card{width:min(460px,92vw);max-height:min(85dvh,85vh);display:flex;flex-direction:column;overflow:hidden;background:#0f172a;color:#e5e7eb;border:1px solid rgba(148,163,184,0.2);border-radius:18px;padding:16px;box-shadow:0 24px 60px rgba(15,23,42,0.45);}
        .nav-switch-header{display:flex;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:10px;}
        .nav-switch-body{flex:1 1 auto;min-height:0;overflow-y:auto;-webkit-overflow-scrolling:touch;overscroll-behavior:contain;padding-right:2px;padding-bottom:10px;}
        .nav-switch-title{font-size:18px;font-weight:800;letter-spacing:0.2px;}
        .nav-switch-sub{margin-top:4px;font-size:13px;color:#94a3b8;line-height:1.35;}
        .nav-switch-close{background:transparent;border:1px solid rgba(148,163,184,0.3);color:#e2e8f0;border-radius:10px;padding:6px 10px;cursor:pointer;}
        .nav-switch-section{margin-top:8px;}
        .nav-switch-section-title{margin:0 0 7px;font-size:11px;font-weight:800;letter-spacing:0.08em;color:#a8b7d6;text-transform:uppercase;}
        .nav-switch-choices{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:8px;margin-top:10px;}
        .nav-switch-choice{display:flex;align-items:center;gap:8px;border:1px solid rgba(148,163,184,0.24);border-radius:12px;padding:10px 11px;background:rgba(15,23,42,0.55);font-size:14px;font-weight:600;cursor:pointer;}
        .nav-switch-choice input{accent-color:#2563eb;inline-size:16px;block-size:16px;cursor:pointer;}
        .nav-switch-choice.is-checked{border-color:rgba(59,130,246,0.6);background:rgba(37,99,235,0.14);}
        .nav-switch-hint{margin-top:10px;font-size:12px;color:#94a3b8;line-height:1.35;}
        .nav-switch-note{margin-top:4px;font-size:12px;color:#9fb2d6;line-height:1.35;}
        .nav-switch-select-wrap{display:block;margin-top:8px;}
        .nav-switch-select-label{display:block;margin-bottom:6px;font-size:13px;color:#cbd5e1;}
        .nav-switch-select{display:block;width:100%;border:1px solid rgba(148,163,184,0.35);border-radius:10px;background:#0b1220;color:#e2e8f0;font-size:14px;padding:9px 10px;}
        .nav-switch-select:focus{outline:2px solid rgba(59,130,246,0.55);outline-offset:1px;}
        .nav-switch-age-grid{display:grid;grid-template-columns:1fr 1fr;gap:8px;}
        .nav-switch-error{min-height:18px;margin-top:8px;font-size:12px;color:#fca5a5;}
        .nav-switch-actions{display:flex;justify-content:flex-end;gap:10px;flex:0 0 auto;margin-top:10px;padding-top:12px;padding-bottom:calc(4px + env(safe-area-inset-bottom));border-top:1px solid rgba(148,163,184,0.2);background:#0f172a;}
        .nav-switch-btn{border-radius:12px;padding:8px 14px;border:1px solid rgba(148,163,184,0.3);cursor:pointer;font-weight:700;}
        .nav-switch-btn.primary{background:#2563eb;border-color:#2563eb;color:#fff;}
        .nav-switch-btn.secondary{background:transparent;color:#e2e8f0;}
        .nav-switch-btn:disabled,.nav-switch-choice input:disabled,.nav-switch-select:disabled{opacity:0.6;cursor:not-allowed;}
        body.switch-modal-open{overflow:hidden;position:fixed;inset:0;width:100%;}
        @media (max-width: 720px){
          .nav-switch-modal{align-items:flex-start;padding:calc(env(safe-area-inset-top) + 8px) 12px calc(env(safe-area-inset-bottom) + 8px);}
          .nav-switch-card{width:100%;max-height:calc(100vh - env(safe-area-inset-top) - env(safe-area-inset-bottom) - 16px);max-height:calc(100dvh - env(safe-area-inset-top) - env(safe-area-inset-bottom) - 16px);border-radius:16px;padding:14px;}
          .nav-switch-title{font-size:16px;}
          .nav-switch-choices{grid-template-columns:1fr;}
          .nav-switch-age-grid{grid-template-columns:1fr;}
        }

/* Externalized from js/group-chat.js. */
.group-chat-modal-backdrop {
        position: fixed;
        inset: 0;
        background: rgba(5, 10, 24, 0.72);
        backdrop-filter: blur(10px);
        z-index: 12000;
        display: none;
        align-items: center;
        justify-content: center;
        padding: 18px;
      }
      .group-chat-modal-backdrop.open {
        display: flex;
      }
      .group-chat-modal {
        width: min(100%, 440px);
        max-height: min(88vh, 760px);
        overflow: hidden;
        display: flex;
        flex-direction: column;
        border-radius: 24px;
        border: 1px solid rgba(96, 165, 250, 0.24);
        background:
          linear-gradient(180deg, rgba(18, 28, 58, 0.98), rgba(10, 16, 34, 0.98));
        box-shadow: 0 24px 64px rgba(0, 0, 0, 0.45);
      }
      .group-chat-modal-head {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 12px;
        padding: 18px 18px 12px;
      }
      .group-chat-modal-title {
        margin: 0;
        font-size: 20px;
        font-weight: 800;
        color: #eff6ff;
      }
      .group-chat-modal-copy {
        margin: 6px 0 0;
        color: #cbd5e1;
        font-size: 14px;
        line-height: 1.5;
      }
      .group-chat-modal-close {
        appearance: none;
        border: 1px solid rgba(148, 163, 184, 0.28);
        background: rgba(15, 23, 42, 0.86);
        color: #e2e8f0;
        border-radius: 999px;
        padding: 8px 12px;
        font-weight: 700;
        cursor: pointer;
      }
      .group-chat-modal-body {
        padding: 0 18px 18px;
        overflow: auto;
        display: flex;
        flex-direction: column;
        gap: 14px;
      }
      .group-chat-modal-status {
        display: none;
        border-radius: 14px;
        padding: 11px 12px;
        font-size: 13px;
        line-height: 1.45;
        border: 1px solid rgba(148, 163, 184, 0.18);
        background: rgba(15, 23, 42, 0.64);
        color: #e2e8f0;
      }
      .group-chat-modal-status.show {
        display: block;
      }
      .group-chat-modal-status.is-error {
        border-color: rgba(248, 113, 113, 0.28);
        background: rgba(127, 29, 29, 0.24);
        color: #fecaca;
      }
      .group-chat-modal-status.is-success {
        border-color: rgba(34, 197, 94, 0.24);
        background: rgba(20, 83, 45, 0.26);
        color: #bbf7d0;
      }
      .group-chat-modal-status.is-info {
        border-color: rgba(96, 165, 250, 0.24);
        background: rgba(30, 64, 175, 0.24);
        color: #bfdbfe;
      }
      .group-chat-modal-section {
        display: flex;
        flex-direction: column;
        gap: 10px;
      }
      .group-chat-modal-section-label {
        font-size: 12px;
        font-weight: 800;
        letter-spacing: 0.14em;
        text-transform: uppercase;
        color: #93c5fd;
      }
      .group-chat-choices {
        display: flex;
        flex-direction: column;
        gap: 10px;
      }
      .group-chat-choice {
        width: 100%;
        border: 1px solid rgba(96, 165, 250, 0.18);
        background: rgba(15, 23, 42, 0.78);
        color: #eff6ff;
        border-radius: 18px;
        padding: 14px;
        display: flex;
        flex-direction: column;
        gap: 12px;
      }
      .group-chat-choice.is-selected {
        border-color: rgba(56, 189, 248, 0.68);
        background: rgba(30, 64, 175, 0.34);
        box-shadow: inset 0 0 0 1px rgba(125, 211, 252, 0.24);
      }
      .group-chat-choice.is-disabled {
        opacity: 0.62;
      }
      .group-chat-choice-head {
        display: flex;
        align-items: flex-start;
        justify-content: space-between;
        gap: 12px;
      }
      .group-chat-choice-main {
        min-width: 0;
        display: flex;
        flex-direction: column;
        gap: 4px;
      }
      .group-chat-choice-title {
        font-size: 15px;
        font-weight: 800;
        color: #eff6ff;
      }
      .group-chat-choice-meta {
        font-size: 12px;
        color: #cbd5e1;
      }
      .group-chat-choice-pill {
        flex: 0 0 auto;
        border-radius: 999px;
        padding: 6px 10px;
        font-size: 11px;
        font-weight: 800;
        letter-spacing: 0.06em;
        text-transform: uppercase;
        color: #dbeafe;
        background: rgba(37, 99, 235, 0.34);
      }
      .group-chat-choice-actions {
        display: flex;
        justify-content: flex-end;
        gap: 8px;
        flex-wrap: wrap;
      }
      .group-chat-choice-btn {
        appearance: none;
        border-radius: 999px;
        border: 1px solid rgba(148, 163, 184, 0.24);
        background: rgba(15, 23, 42, 0.92);
        color: #eff6ff;
        padding: 8px 12px;
        font-size: 11px;
        font-weight: 800;
        letter-spacing: 0.05em;
        text-transform: uppercase;
        cursor: pointer;
      }
      .group-chat-choice-btn:hover {
        border-color: rgba(96, 165, 250, 0.42);
        background: rgba(30, 41, 59, 0.96);
      }
      .group-chat-choice-btn.primary {
        border-color: rgba(56, 189, 248, 0.36);
        background: linear-gradient(135deg, #2563eb, #0ea5e9);
      }
      .group-chat-choice-btn:disabled {
        cursor: not-allowed;
        opacity: 0.56;
      }
      .group-chat-recent {
        border-top: 1px solid rgba(148, 163, 184, 0.14);
        padding-top: 12px;
        display: flex;
        flex-direction: column;
        gap: 8px;
      }
      .group-chat-recent-copy {
        color: #cbd5e1;
        font-size: 12px;
        line-height: 1.45;
      }
      .group-chat-recent-list {
        display: flex;
        flex-direction: column;
        gap: 8px;
      }
      .group-chat-recent-item {
        display: flex;
        align-items: center;
        gap: 10px;
        border: 1px solid rgba(148, 163, 184, 0.16);
        background: rgba(10, 16, 34, 0.76);
        border-radius: 14px;
        padding: 10px 11px;
      }
      .group-chat-recent-avatar {
        width: 34px;
        height: 34px;
        border-radius: 10px;
        object-fit: cover;
        flex: 0 0 34px;
        background: rgba(2, 6, 23, 0.86);
        border: 1px solid rgba(148, 163, 184, 0.2);
      }
      .group-chat-recent-avatar.is-default {
        object-fit: contain;
        padding: 3px;
        border: none;
        background: transparent;
      }
      .group-chat-recent-main {
        min-width: 0;
        flex: 1;
        display: flex;
        flex-direction: column;
        gap: 2px;
      }
      .group-chat-recent-name {
        font-size: 13px;
        font-weight: 800;
        color: #eff6ff;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }
      .group-chat-recent-meta {
        font-size: 11px;
        color: #94a3b8;
        overflow: hidden;
        text-overflow: ellipsis;
        white-space: nowrap;
      }
      .group-chat-recent-action {
        appearance: none;
        border-radius: 999px;
        border: 1px solid rgba(56, 189, 248, 0.32);
        background: rgba(37, 99, 235, 0.24);
        color: #dbeafe;
        padding: 7px 11px;
        font-size: 11px;
        font-weight: 800;
        cursor: pointer;
        flex: 0 0 auto;
      }
      .group-chat-recent-action:disabled {
        opacity: 0.56;
        cursor: not-allowed;
      }
      .group-chat-recent-empty {
        border: 1px dashed rgba(148, 163, 184, 0.18);
        border-radius: 14px;
        padding: 12px;
        color: #cbd5e1;
        background: rgba(15, 23, 42, 0.42);
        font-size: 12px;
        line-height: 1.5;
      }
      .group-chat-empty {
        border: 1px dashed rgba(148, 163, 184, 0.28);
        border-radius: 18px;
        padding: 16px;
        color: #cbd5e1;
        background: rgba(15, 23, 42, 0.46);
        font-size: 14px;
        line-height: 1.55;
      }
      .group-chat-create-box {
        border: 1px solid rgba(96, 165, 250, 0.18);
        background: rgba(10, 16, 34, 0.74);
        border-radius: 18px;
        padding: 14px;
        display: flex;
        flex-direction: column;
        gap: 10px;
      }
      .group-chat-create-copy {
        color: #cbd5e1;
        font-size: 13px;
        line-height: 1.5;
      }
      .group-chat-input {
        width: 100%;
        box-sizing: border-box;
        border-radius: 14px;
        border: 1px solid rgba(148, 163, 184, 0.22);
        background: rgba(15, 23, 42, 0.94);
        color: #eff6ff;
        padding: 12px 14px;
        font: inherit;
      }
      .group-chat-input::placeholder {
        color: #64748b;
      }
      .group-chat-input:focus {
        outline: none;
        border-color: rgba(56, 189, 248, 0.62);
        box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.18);
      }
      .group-chat-modal-actions {
        display: grid;
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 10px;
        margin-top: 2px;
      }
      .group-chat-modal-btn {
        appearance: none;
        border-radius: 14px;
        border: 1px solid rgba(148, 163, 184, 0.22);
        background: rgba(15, 23, 42, 0.92);
        color: #eff6ff;
        padding: 11px 14px;
        font-size: 14px;
        font-weight: 800;
        cursor: pointer;
        width: 100%;
      }
      .group-chat-modal-btn.primary {
        border-color: rgba(56, 189, 248, 0.36);
        background: linear-gradient(135deg, #2563eb, #0ea5e9);
      }
      .group-chat-modal-btn:disabled {
        cursor: not-allowed;
        opacity: 0.56;
      }
      @media (max-width: 560px) {
        .group-chat-modal-backdrop {
          align-items: flex-end;
          padding: 12px;
        }
        .group-chat-modal {
          width: 100%;
          max-height: min(88vh, 720px);
          border-radius: 24px 24px 20px 20px;
        }
        .group-chat-choice-actions {
          justify-content: stretch;
        }
        .group-chat-choice-btn {
          flex: 1 1 0;
          min-width: 0;
        }
      }

/* Externalized from profile/index.html. */
.profile-upload-queue-toast {
                    position: fixed;
                    left: 50%;
                    bottom: calc(16px + env(safe-area-inset-bottom));
                    transform: translate(-50%, 14px);
                    z-index: 1600;
                    display: flex;
                    align-items: center;
                    gap: 10px;
                    min-width: min(88vw, 360px);
                    max-width: min(92vw, 420px);
                    padding: 10px 12px;
                    border-radius: 14px;
                    border: 1px solid rgba(148, 163, 184, 0.35);
                    background: rgba(2, 6, 23, 0.94);
                    color: #e2e8f0;
                    opacity: 0;
                    pointer-events: none;
                    transition: opacity 0.2s ease, transform 0.2s ease;
                    box-shadow: 0 14px 34px rgba(2, 6, 23, 0.45);
                  }
                  .profile-upload-queue-toast.show {
                    opacity: 1;
                    transform: translate(-50%, 0);
                    pointer-events: auto;
                  }
                  .profile-upload-queue-toast-text {
                    flex: 1;
                    font-size: 12px;
                    font-weight: 700;
                    line-height: 1.3;
                  }
                  .profile-upload-queue-toast-btn {
                    border: 1px solid rgba(59, 130, 246, 0.75);
                    background: rgba(30, 64, 175, 0.28);
                    color: #dbeafe;
                    border-radius: 999px;
                    padding: 6px 10px;
                    font-size: 11px;
                    font-weight: 800;
                    cursor: pointer;
                    white-space: nowrap;
                  }