/* ============================================================
   VuNguyen Software - Captcha Control Panel
   Dark theme + rainbow brand accent (khop banner cua tool).
   ============================================================ */
:root {
  --bg: #0c0e14;
  --bg-soft: #141826;
  --card: #161b29;
  --card-2: #1b2233;
  --line: #262d40;
  --text: #e8ebf2;
  --muted: #8a93a8;
  --green: #22d39a;
  --green-glow: rgba(34, 211, 154, 0.5);
  --amber: #f5b042;
  --red: #ff5d6c;
  --gray: #4a5169;
  --rainbow: linear-gradient(90deg, #ff5d6c, #f5b042, #ffe14d, #22d39a, #2ea7ff, #8a6dff, #ff5dd2);
}

* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  background: radial-gradient(1200px 600px at 50% -10%, #1a2036 0%, var(--bg) 60%);
  color: var(--text);
  min-height: 100vh;
}

/* ---------- Brand ---------- */
.brand { display: flex; align-items: center; gap: 10px; font-weight: 800; font-size: 20px; }
.brand-mark { font-size: 22px; animation: spin 6s linear infinite; }
.brand-text {
  background: var(--rainbow);
  -webkit-background-clip: text; background-clip: text;
  -webkit-text-fill-color: transparent;
  background-size: 200% auto;
  animation: shimmer 6s linear infinite;
}
@keyframes shimmer { to { background-position: 200% center; } }
@keyframes spin { to { transform: rotate(360deg); } }

/* ---------- Topbar ---------- */
.topbar {
  display: flex; justify-content: space-between; align-items: center;
  padding: 16px 28px; border-bottom: 1px solid var(--line);
  background: rgba(12, 14, 20, 0.7); backdrop-filter: blur(10px);
  position: sticky; top: 0; z-index: 10;
}
.topbar-right { display: flex; align-items: center; gap: 16px; }
.hello { color: var(--muted); font-size: 14px; }

/* ---------- Layout ---------- */
.wrap { max-width: 1100px; margin: 0 auto; padding: 28px 20px 60px; }
.page-head h1 { margin: 8px 0 4px; font-size: 26px; }
.muted { color: var(--muted); }
.page-head .muted { font-size: 14px; margin: 0; }

/* ---------- Summary ---------- */
.summary { display: grid; grid-template-columns: repeat(3, 1fr); gap: 16px; margin: 24px 0; }
.sum-card {
  background: linear-gradient(160deg, var(--card-2), var(--card));
  border: 1px solid var(--line); border-radius: 16px; padding: 22px;
  text-align: center; position: relative; overflow: hidden;
}
.sum-card::before {
  content: ""; position: absolute; top: 0; left: 0; right: 0; height: 3px;
  background: var(--rainbow); background-size: 200% auto; animation: shimmer 6s linear infinite;
}
.sum-num { font-size: 38px; font-weight: 800; }
.sum-label { color: var(--muted); margin-top: 6px; font-size: 13px; text-transform: uppercase; letter-spacing: 1px; }

/* ---------- Device cards ---------- */
.devices { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 18px; }
.device-card {
  background: linear-gradient(160deg, var(--card-2), var(--card));
  border: 1px solid var(--line); border-radius: 16px; padding: 18px;
  transition: transform .15s, border-color .15s;
}
.device-card:hover { transform: translateY(-2px); border-color: #36405c; }

.dev-head { display: flex; align-items: center; gap: 10px; margin-bottom: 14px; }
.dev-name { font-weight: 700; font-size: 16px; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.dev-status { font-size: 12px; padding: 3px 10px; border-radius: 999px; background: var(--bg-soft); color: var(--muted); }

.dot { width: 10px; height: 10px; border-radius: 50%; background: var(--gray); flex: none; }
.st-running .dot { background: var(--green); box-shadow: 0 0 0 0 var(--green-glow); animation: pulse 1.8s infinite; }
.st-running .dev-status { color: var(--green); }
.st-paused .dot { background: var(--amber); }
.st-paused .dev-status { color: var(--amber); }
.st-offline { opacity: .7; }
.st-offline .dot { background: var(--gray); }
@keyframes pulse {
  0% { box-shadow: 0 0 0 0 var(--green-glow); }
  70% { box-shadow: 0 0 0 8px rgba(34,211,154,0); }
  100% { box-shadow: 0 0 0 0 rgba(34,211,154,0); }
}

.dev-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; margin-bottom: 12px; }
.stat { background: var(--bg-soft); border-radius: 12px; padding: 12px; text-align: center; }
.stat-num { font-size: 24px; font-weight: 800; }
.stat-label { font-size: 11px; color: var(--muted); text-transform: uppercase; letter-spacing: .5px; }

.dev-meta { font-size: 13px; margin-top: 6px; }
.dev-actions { display: flex; gap: 10px; margin-top: 16px; }
.dev-actions button {
  flex: 1; padding: 10px; border: 0; border-radius: 10px; cursor: pointer;
  font-weight: 700; font-size: 14px; transition: opacity .15s, transform .1s;
}
.dev-actions button:active { transform: scale(.97); }
.dev-actions button:disabled { opacity: .35; cursor: not-allowed; }
.btn-start { background: var(--green); color: #052b20; }
.btn-stop { background: var(--red); color: #fff; }
button.loading { opacity: .6; pointer-events: none; }

.empty { grid-column: 1 / -1; text-align: center; color: var(--muted); padding: 50px; border: 1px dashed var(--line); border-radius: 16px; }

.footnote { text-align: center; color: var(--muted); font-size: 12px; padding: 24px; }

/* ---------- Buttons ---------- */
.btn-primary {
  width: 100%; padding: 12px; border: 0; border-radius: 10px; cursor: pointer;
  font-weight: 700; font-size: 15px; color: #fff; margin-top: 18px;
  background: var(--rainbow); background-size: 200% auto; animation: shimmer 6s linear infinite;
}
.btn-ghost {
  color: var(--muted); text-decoration: none; font-size: 14px;
  padding: 8px 14px; border: 1px solid var(--line); border-radius: 10px;
}
.btn-ghost:hover { color: var(--text); border-color: #36405c; }

/* ---------- Login ---------- */
.login-page { display: flex; align-items: center; justify-content: center; }
.login-card {
  width: 100%; max-width: 380px; margin: 8vh auto;
  background: linear-gradient(160deg, var(--card-2), var(--card));
  border: 1px solid var(--line); border-radius: 20px; padding: 34px;
  box-shadow: 0 20px 60px rgba(0,0,0,.45);
}
.login-card .brand { justify-content: center; font-size: 22px; }
.login-sub { text-align: center; color: var(--muted); margin: 6px 0 22px; font-size: 13px; letter-spacing: 1px; text-transform: uppercase; }
.login-card label { display: block; font-size: 13px; color: var(--muted); margin: 14px 0 6px; }
.login-card input {
  width: 100%; padding: 12px; border-radius: 10px; border: 1px solid var(--line);
  background: var(--bg-soft); color: var(--text); font-size: 15px;
}
.login-card input:focus { outline: none; border-color: #6d5dfc; }
.alert { background: rgba(255,93,108,.12); border: 1px solid var(--red); color: #ffb3ba; padding: 10px 12px; border-radius: 10px; font-size: 14px; }

@media (max-width: 560px) {
  .summary { grid-template-columns: 1fr; }
  .topbar { padding: 14px 16px; }
}

/* ---------- Layout 2 cot: log trai + devices phai ---------- */
.layout { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; align-items: start; }
.right-col .devices { grid-template-columns: 1fr; }

/* ---------- Delete button tren device card ---------- */
.dev-del {
  background: transparent; border: 0; color: var(--muted); cursor: pointer;
  font-size: 22px; line-height: 1; padding: 0 4px; margin-left: 6px; transition: color .15s;
}
.dev-del:hover { color: var(--red); }

/* ---------- Log panel + vien LED RGB ---------- */
.log-panel {
  position: relative; border-radius: 16px; padding: 3px;
  background: var(--rainbow); background-size: 300% 300%;
  animation: rgbflow 5s linear infinite;
}
@keyframes rgbflow { 0% { background-position: 0% 50%; } 100% { background-position: 300% 50%; } }
.log-panel::after {
  content: ""; position: absolute; inset: 3px; border-radius: 13px;
  box-shadow: 0 0 18px rgba(138,109,255,.35); pointer-events: none;
}
.log-head {
  display: flex; align-items: center; justify-content: space-between;
  background: var(--card); border-radius: 13px 13px 0 0; padding: 14px 16px;
}
.log-title { font-weight: 700; font-size: 15px; }
.log-live { display: flex; align-items: center; gap: 6px; font-size: 11px; color: var(--red); font-weight: 700; letter-spacing: 1px; }
.live-dot { width: 8px; height: 8px; border-radius: 50%; background: var(--red); animation: pulse 1.5s infinite; }
.log-body {
  background: var(--bg); border-radius: 0 0 13px 13px;
  padding: 10px 14px; height: 75vh; min-height: 460px; overflow-y: auto;
  font-family: ui-monospace, "Cascadia Code", Consolas, monospace; font-size: 13px;
}
/* Thanh cuon dep cho log */
.log-body::-webkit-scrollbar { width: 8px; }
.log-body::-webkit-scrollbar-track { background: transparent; }
.log-body::-webkit-scrollbar-thumb { background: #2f3850; border-radius: 8px; }
.log-body::-webkit-scrollbar-thumb:hover { background: #3d4866; }
.log-empty { color: var(--muted); text-align: center; padding: 30px; }
.log-line { padding: 5px 6px; border-bottom: 1px solid rgba(255,255,255,.04); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.log-user { font-weight: 700; }

/* mau theo loai su kien */
.log-start { color: #cfd6e6; }
.log-start .cap { color: var(--amber); font-weight: 700; }   /* CAPTCHA vang */
.log-success { color: var(--green); }                         /* ca dong xanh la */
.log-infinity { color: var(--red); }                          /* ca dong do */

@media (max-width: 860px) {
  .layout { grid-template-columns: 1fr; }
}