/* ============================================
   hont · 三套主题系统
   data-theme = neon | tg | darktg
   ============================================ */
:root{
  --radius:14px;
  --font:-apple-system,BlinkMacSystemFont,"Segoe UI","PingFang SC","Microsoft YaHei",sans-serif;
}

/* ---------- 🌸 霓虹粉紫 ---------- */
[data-theme="neon"]{
  --bg:#0a0612; --bg-elev:rgba(255,255,255,.06); --bg-side:rgba(20,10,31,.75);
  --bg-input:rgba(10,6,18,.7); --border:rgba(168,85,247,.30); --border-strong:rgba(168,85,247,.5);
  --txt:#e9e2f5; --dim:#9d92b5; --accent:#ff2e97; --accent2:#a855f7; --accent3:#22d3ee;
  --me-bubble:linear-gradient(135deg,#ff2e97,#a855f7); --me-txt:#fff;
  --oth-bubble:rgba(255,255,255,.06); --oth-txt:#e9e2f5;
  --glow:0 0 18px rgba(255,46,151,.5); --danger:#ff3b5c;
  --bg-image:
    radial-gradient(ellipse 80% 50% at 15% -10%,rgba(168,85,247,.35),transparent 60%),
    radial-gradient(ellipse 70% 50% at 90% 0%,rgba(255,46,151,.28),transparent 60%),
    radial-gradient(ellipse 90% 60% at 50% 110%,rgba(34,211,238,.16),transparent 65%),
    linear-gradient(180deg,#0a0612,#140a1f);
  --logo-grad:linear-gradient(135deg,#ff2e97,#a855f7,#22d3ee);
}

/* ---------- 🔵 Telegram 蓝白 ---------- */
[data-theme="tg"]{
  --bg:#ffffff; --bg-elev:#ffffff; --bg-side:#ffffff;
  --bg-input:#f1f3f5; --border:#e6e8eb; --border-strong:#d3d7dc;
  --txt:#1a1a1a; --dim:#8b939c; --accent:#3390ec; --accent2:#56a8f5; --accent3:#3390ec;
  --me-bubble:linear-gradient(135deg,#3390ec,#56a8f5); --me-txt:#fff;
  --oth-bubble:#f1f3f5; --oth-txt:#1a1a1a;
  --glow:0 4px 16px rgba(51,144,236,.28); --danger:#e53935;
  --bg-image:none;
  --logo-grad:linear-gradient(135deg,#3390ec,#56a8f5);
}

/* ---------- 🌙 深色 Telegram ---------- */
[data-theme="darktg"]{
  --bg:#17212b; --bg-elev:#1d2b3a; --bg-side:#17212b;
  --bg-input:#242f3d; --border:#2b3947; --border-strong:#3a4a5c;
  --txt:#e6ebf0; --dim:#7f8c9a; --accent:#5288c1; --accent2:#6da2dc; --accent3:#9b6ee0;
  --me-bubble:linear-gradient(135deg,#5288c1,#9b6ee0); --me-txt:#fff;
  --oth-bubble:#242f3d; --oth-txt:#e6ebf0;
  --glow:0 4px 18px rgba(82,136,193,.35); --danger:#e5544b;
  --bg-image:none;
  --logo-grad:linear-gradient(135deg,#5288c1,#9b6ee0);
}