/* ═══════════════════════════════════════════
   LQ SYSTEM CONTROL  ·  style.css  ·  v2.1
   Aurora light theme · 与使用说明配色对齐
═══════════════════════════════════════════ */

@property --bangle {
  syntax: '<angle>';
  initial-value: 0deg;
  inherits: false;
}

:root {
  --bg:         #fafbfd;
  --bg-soft:    #f3f5fa;
  --surface:    #ffffff;
  --surface-2:  #f7f8fc;
  --surface-3:  #eef1f8;
  --text:       #0b1020;
  --text-soft:  #475569;
  --muted:      #94a3b8;
  --border:     #e6e9f2;
  --border-soft:#eef1f7;

  --accent:    #6366f1;
  --accent-2:  #8b5cf6;
  --accent-3:  #22d3ee;
  --accent-4:  #f472b6;

  --danger:    #ef4444;
  --warn:      #f59e0b;
  --info:      #0ea5e9;
  --ok:        #10b981;

  --shadow:    0 1px 2px rgba(15,23,42,.05), 0 10px 30px rgba(15,23,42,.06);
  --shadow-lg: 0 24px 60px -16px rgba(99,102,241,.35);
  --radius:    16px;
  --radius-sm: 12px;
  --sw:        240px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html, body { height: 100%; }

body {
  font-family: "Inter","Segoe UI","PingFang SC","Microsoft YaHei",system-ui,sans-serif;
  background: var(--bg);
  color: var(--text);
  overflow: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── Aurora background ── */
body::before {
  content: ""; position: fixed; inset: -15%; z-index: 0; pointer-events: none;
  background:
    radial-gradient(800px 500px at 12% 6%,  rgba(99,102,241,.20), transparent 60%),
    radial-gradient(700px 480px at 88% 8%,  rgba(34,211,238,.17), transparent 60%),
    radial-gradient(900px 600px at 50% 95%, rgba(244,114,182,.15), transparent 60%);
  filter: blur(8px); opacity: .9;
  animation: floatBg 18s ease-in-out infinite alternate;
}
@keyframes floatBg {
  0%   { transform: translate(0,0)   scale(1); }
  50%  { transform: translate(-2%,1%) scale(1.03); }
  100% { transform: translate(2%,-1%) scale(1); }
}

/* particles canvas (purple, subtle) */
#bg {
  position: fixed; inset: 0; z-index: 1;
  pointer-events: none; opacity: 0.55;
}

/* Cursor glow (JS-positioned) */
#cursor-glow {
  position: fixed;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(139,92,246,0.10) 0%, transparent 70%);
  pointer-events: none;
  z-index: 2;
  transform: translate(-50%, -50%);
  will-change: left, top;
}

/* ══════════════════════════════════════════
   MAIN APP SHELL
══════════════════════════════════════════ */
.app {
  position: relative; z-index: 10;
  height: 100vh;
  display: flex; flex-direction: column;
  opacity: 0;
}
.app.entered { animation: app-in 0.6s ease 0.1s forwards; }
@keyframes app-in { to { opacity: 1; } }

/* ── TOPBAR ── */
.topbar {
  flex-shrink: 0; height: 60px;
  display: flex; align-items: center;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  border-bottom: 1px solid var(--border-soft);
  backdrop-filter: blur(18px) saturate(180%);
  -webkit-backdrop-filter: blur(18px) saturate(180%);
  opacity: 0; transform: translateY(-8px);
}
.app.entered .topbar { animation: el-enter 0.4s ease 0s forwards; }

.tb-brand {
  flex-shrink: 0; height: 100%;
  display: flex; align-items: center; gap: 12px;
  padding: 0 20px;
}

.logo-mark {
  width: 34px; height: 34px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.95rem; color: #fff; flex-shrink: 0;
  background: conic-gradient(from 90deg, var(--accent), var(--accent-2), var(--accent-3), var(--accent-4), var(--accent));
  box-shadow: 0 8px 22px rgba(139,92,246,.45), inset 0 0 0 1px rgba(255,255,255,.15);
  animation: lp 6s linear infinite;
  position: relative;
}
@keyframes lp {
  0%   { box-shadow: 0 6px 18px rgba(139,92,246,.4),  inset 0 0 0 1px rgba(255,255,255,.15); }
  50%  { box-shadow: 0 10px 28px rgba(139,92,246,.6), inset 0 0 0 1px rgba(255,255,255,.2); }
  100% { box-shadow: 0 6px 18px rgba(139,92,246,.4),  inset 0 0 0 1px rgba(255,255,255,.15); }
}

.brand-txt { font-size: 0.9rem; font-weight: 800; letter-spacing: 2px; color: var(--text); }
.brand-sub { font-size: 0.6rem; color: var(--muted); letter-spacing: 1.5px; font-weight: 600; }

.tb-center {
  flex: 1; display: flex; align-items: center;
  justify-content: center; gap: 22px;
}

#topTime {
  font-family: "JetBrains Mono","SF Mono","Cascadia Mono","Consolas",monospace;
  font-size: 1.75rem; font-weight: 800;
  letter-spacing: 3px;
  background: linear-gradient(135deg, var(--text), var(--accent));
  -webkit-background-clip: text; background-clip: text; color: transparent;
}

#topDate { font-size: 0.72rem; color: var(--muted); letter-spacing: 1.6px; line-height: 1.65; text-align: center; font-weight: 600; }

.tb-right { display: flex; align-items: center; gap: 12px; padding-right: 20px; }

/* "使用说明" button in topbar */
.manual-btn {
  display: inline-flex; align-items: center; gap: 7px;
  padding: 7px 14px; border-radius: 999px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #fff; font-size: 0.74rem; font-weight: 700;
  letter-spacing: 1.2px;
  border: none; cursor: pointer;
  text-decoration: none;
  box-shadow: 0 6px 18px rgba(99,102,241,.35);
  transition: transform 0.18s, box-shadow 0.18s;
}
.manual-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 24px rgba(99,102,241,.5);
}
.manual-btn:active { transform: scale(0.97); }
.manual-btn .mb-ic { font-size: 0.92rem; line-height: 1; }

.chip {
  display: flex; align-items: center; gap: 7px;
  background: color-mix(in srgb, var(--ok) 12%, transparent);
  border: 1px solid color-mix(in srgb, var(--ok) 28%, transparent);
  border-radius: 999px; padding: 5px 12px;
  font-size: 0.7rem; color: var(--ok);
  letter-spacing: 1.4px; font-weight: 700;
}
.pd {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--ok); box-shadow: 0 0 8px var(--ok);
  animation: pd 2s ease-in-out infinite;
}
@keyframes pd { 0%,100%{opacity:1} 50%{opacity:0.35} }
.ver { font-size: 0.68rem; color: var(--muted); letter-spacing: 1.2px; font-weight: 600; }

/* ── LAYOUT ── */
.layout { flex: 1; display: flex; overflow: hidden; }

/* ── MAIN ── */
.main {
  flex: 1; overflow-y: auto;
  padding: 22px 24px;
  display: flex; flex-direction: column; gap: 18px;
  position: relative; z-index: 3;
}
.main::-webkit-scrollbar { width: 5px; }
.main::-webkit-scrollbar-thumb { background: var(--border); border-radius: 3px; }

/* ── STATS ROW ── */
.stats { display: grid; grid-template-columns: repeat(3,1fr); gap: 14px; flex-shrink: 0; }

.stat {
  background: color-mix(in srgb, var(--surface) 78%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
  display: flex; align-items: center; gap: 14px;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  position: relative; overflow: hidden;
  transition: transform 0.22s, box-shadow 0.22s;
  opacity: 0; transform: translateY(10px);
  box-shadow: var(--shadow);
}
.stat::before {
  content: ''; position: absolute;
  top: 0; left: 0; right: 0; height: 3px;
  border-radius: 3px 3px 0 0;
}
.stat:hover { transform: translateY(-2px); box-shadow: 0 18px 36px rgba(99,102,241,.16); }
.stat.blue::before  { background: linear-gradient(90deg, var(--accent),    var(--accent-2)); }
.stat.green::before { background: linear-gradient(90deg, var(--ok),        var(--accent-3)); }
.stat.cyan::before  { background: linear-gradient(90deg, var(--accent-3),  var(--accent-4)); }
.stat.blue  { --stat-c: var(--accent); }
.stat.green { --stat-c: var(--ok); }
.stat.cyan  { --stat-c: var(--accent-3); }

.app.entered .stats .stat:nth-child(1) { animation: el-enter 0.4s ease 0.10s forwards; }
.app.entered .stats .stat:nth-child(2) { animation: el-enter 0.4s ease 0.17s forwards; }
.app.entered .stats .stat:nth-child(3) { animation: el-enter 0.4s ease 0.24s forwards; }

.st-icon {
  width: 42px; height: 42px; border-radius: 11px;
  background: linear-gradient(135deg, var(--stat-c, var(--accent)), color-mix(in srgb, var(--stat-c, var(--accent)) 55%, var(--accent-2)));
  display: flex; align-items: center; justify-content: center;
  font-size: 1.1rem; flex-shrink: 0;
  color: #fff;
  box-shadow: 0 8px 18px color-mix(in srgb, var(--stat-c, var(--accent)) 45%, transparent);
}
.st-info { flex: 1; min-width: 0; }
.st-val {
  font-family: "JetBrains Mono","SF Mono","Consolas",monospace;
  font-size: 1.15rem; font-weight: 800;
  color: var(--text); letter-spacing: 0.5px;
  line-height: 1; margin-bottom: 5px;
}
.st-name { font-size: 0.65rem; color: var(--muted); letter-spacing: 1.5px; text-transform: uppercase; font-weight: 600; }
.st-badge {
  font-size: 0.62rem; padding: 3px 9px; border-radius: 999px;
  background: color-mix(in srgb, var(--stat-c, var(--accent)) 14%, transparent);
  color: var(--stat-c, var(--accent));
  letter-spacing: 1px; font-weight: 700; flex-shrink: 0;
}

/* ── CONTENT GRID ── */
.cgrid { display: grid; grid-template-columns: 1fr 1.55fr; gap: 16px; flex-shrink: 0; }

/* ── CARD ── */
.card {
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  overflow: hidden;
  transition: box-shadow 0.22s;
  position: relative;
  opacity: 0; transform: translateY(10px);
  box-shadow: var(--shadow);
}
.card:hover { box-shadow: 0 18px 36px rgba(99,102,241,.14); }

/* Auth card — rotating gradient border */
.card.auth-card {
  background:
    linear-gradient(color-mix(in srgb, var(--surface) 80%, transparent), color-mix(in srgb, var(--surface) 80%, transparent)) padding-box,
    conic-gradient(from var(--bangle),
      rgba(99,102,241,0) 0deg,
      rgba(99,102,241,.55) 55deg,
      rgba(34,211,238,.45) 95deg,
      rgba(244,114,182,.35) 130deg,
      rgba(99,102,241,0) 160deg) border-box;
  border: 1px solid transparent;
  animation: border-rot 5s linear infinite;
}
@keyframes border-rot { to { --bangle: 360deg; } }

.app.entered .cgrid > .card:nth-child(1) { animation: el-enter 0.42s ease 0.32s forwards; }
.app.entered .cgrid > .card:nth-child(2) { animation: el-enter 0.42s ease 0.40s forwards; }
.app.entered .log-section               { animation: el-enter 0.42s ease 0.50s forwards; }

.ch {
  display: flex; align-items: center; gap: 11px;
  padding: 14px 20px 13px;
  border-bottom: 1px solid var(--border-soft);
  position: relative; z-index: 2;
}
.ch-ico {
  width: 30px; height: 30px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  font-size: 0.78rem; flex-shrink: 0;
  color: #fff;
  box-shadow: 0 6px 14px rgba(99,102,241,.32);
}
.ch-ttl { font-size: 0.92rem; font-weight: 700; letter-spacing: 0.6px; flex: 1; color: var(--text); }
.ch-tag {
  font-size: 0.6rem; padding: 3px 9px; border-radius: 999px;
  background: color-mix(in srgb, var(--accent) 14%, transparent);
  color: var(--accent);
  letter-spacing: 1.4px; font-weight: 700;
}
.cb { padding: 18px 20px; position: relative; z-index: 2; }

/* ── ANNOUNCEMENT ── */
.ntc-meta { display: flex; align-items: center; gap: 9px; margin-bottom: 13px; }
.ntc-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-4); box-shadow: 0 0 8px var(--accent-4);
  animation: pd 2s ease-in-out infinite;
}
.ntc-lbl { font-size: 0.66rem; color: var(--accent-4); letter-spacing: 1.8px; font-weight: 700; }
.ntc-date { font-size: 0.66rem; color: var(--muted); letter-spacing: 1px; margin-left: auto; font-weight: 600; }
.ntc-body {
  font-size: 0.85rem; line-height: 2.0; color: var(--text-soft);
  padding: 14px 16px;
  background: var(--surface-2);
  border-radius: var(--radius-sm);
  border-left: 3px solid var(--accent);
}

/* ── AUTH FORM ── */
.field { margin-bottom: 16px; }
.flabel {
  font-size: 0.68rem; color: var(--muted);
  letter-spacing: 2px; text-transform: uppercase;
  font-weight: 700; margin-bottom: 8px;
  display: flex; align-items: center; gap: 7px;
}
.flabel::before {
  content: ''; width: 12px; height: 2px; border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
}

.inpwrap { position: relative; }
.inpwrap input {
  width: 100%;
  padding: 13px 14px 13px 40px;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 10px;
  color: var(--text);
  font-size: 0.9rem;
  font-family: "JetBrains Mono","SF Mono","Cascadia Mono","Consolas",monospace;
  letter-spacing: 0.8px; outline: none;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.inpwrap input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 14%, transparent);
}
.inpwrap input::placeholder {
  color: var(--muted); font-family: "Inter","Segoe UI",sans-serif;
  letter-spacing: 0; font-size: 0.85rem;
}
.inp-ic {
  position: absolute; left: 13px; top: 50%;
  transform: translateY(-50%);
  color: var(--accent); font-size: 0.9rem;
  pointer-events: none;
}

/* ── BUTTONS ── */
.btns { display: flex; flex-direction: column; gap: 10px; }
.btn {
  position: relative;
  display: flex; align-items: center; gap: 10px;
  width: 100%; padding: 13px 16px;
  border: none; border-radius: 10px;
  font-size: 0.88rem; font-weight: 600;
  cursor: pointer; overflow: hidden;
  transition: transform 0.2s cubic-bezier(0.4,0,0.2,1), box-shadow 0.2s;
  letter-spacing: 0.4px; color: #fff;
}
.btn::before {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.22), transparent);
  transform: translateX(-100%);
  transition: transform 0.36s;
}
.btn:hover:not(:disabled)::before { transform: translateX(100%); }
.btn:disabled { opacity: 0.4; cursor: not-allowed; }
.btn:active:not(:disabled) { transform: scale(0.97); }

.bi { font-size: 0.95rem; flex-shrink: 0; }
.bl { flex: 1; text-align: left; }
.ba { font-size: 0.7rem; opacity: 0.55; transition: opacity 0.16s, transform 0.16s; }
.btn:hover:not(:disabled) .ba { opacity: 1; transform: translateX(3px); }

.btn-b {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 6px 16px rgba(99,102,241,.32);
}
.btn-b:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(99,102,241,.45);
}

.btn-o {
  background: linear-gradient(135deg, var(--accent-4), #ec4899);
  box-shadow: 0 6px 16px rgba(244,114,182,.32);
}
.btn-o:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(244,114,182,.45);
}

.btn-g {
  background: linear-gradient(135deg, var(--accent-3), #06b6d4);
  box-shadow: 0 6px 16px rgba(34,211,238,.32);
}
.btn-g:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 12px 26px rgba(34,211,238,.45);
}

/* secondary "help" button — outline / ghost, links to manual */
.btn-help {
  background: var(--surface);
  color: var(--accent);
  border: 1px solid color-mix(in srgb, var(--accent) 35%, transparent);
  box-shadow: 0 2px 6px rgba(99,102,241,.10);
  text-decoration: none;
}
.btn-help::before {
  background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--accent) 14%, transparent), transparent);
}
.btn-help:hover:not(:disabled) {
  background: linear-gradient(135deg, color-mix(in srgb, var(--accent) 10%, var(--surface)), color-mix(in srgb, var(--accent-2) 10%, var(--surface)));
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  box-shadow: 0 10px 22px rgba(99,102,241,.20);
}
.btn-help .bl { font-weight: 700; letter-spacing: 0.5px; }
.btn-help .must-read {
  color: var(--danger);
  font-weight: 800;
  letter-spacing: 0.6px;
  padding: 1px 7px;
  margin-left: 2px;
  border-radius: 6px;
  background: color-mix(in srgb, var(--danger) 12%, transparent);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--danger) 28%, transparent);
}

/* ── ACTIVITY LOG ── */
.log-body {
  padding: 14px 18px; height: 138px;
  overflow-y: auto;
  font-family: "JetBrains Mono","SF Mono","Cascadia Mono","Consolas",monospace;
  font-size: 0.76rem;
}
.log-body::-webkit-scrollbar { width: 3px; }
.log-body::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }

.ll {
  display: flex; gap: 10px;
  padding: 4px 0;
  border-bottom: 1px solid var(--border-soft);
  line-height: 1.5;
  animation: fi 0.28s ease;
}
@keyframes fi { from{opacity:0;transform:translateY(3px)} to{opacity:1;transform:none} }

.ll-t  { color: var(--muted); flex-shrink: 0; }
.ll-k  {
  font-size: 0.62rem; padding: 1.5px 7px; border-radius: 5px;
  font-weight: 700; letter-spacing: 0.8px; flex-shrink: 0; align-self: center;
}
.ll-k.SYS { background: color-mix(in srgb, var(--accent) 15%, transparent); color: var(--accent); }
.ll-k.ACT { background: color-mix(in srgb, var(--warn)   15%, transparent); color: var(--warn); }
.ll-k.OK  { background: color-mix(in srgb, var(--ok)     15%, transparent); color: var(--ok); }
.ll-k.ERR { background: color-mix(in srgb, var(--danger) 15%, transparent); color: var(--danger); }
.ll-m { color: var(--text-soft); flex: 1; }

/* ── LOADING OVERLAY ── */
.overlay {
  display: none; position: fixed; inset: 0;
  background: rgba(15,23,42,0.35);
  backdrop-filter: blur(8px);
  z-index: 500;
  align-items: center; justify-content: center;
}
.overlay.on { display: flex; }

.ov-box {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 18px; padding: 36px 60px;
  text-align: center;
  box-shadow: var(--shadow-lg);
}
.spin {
  width: 44px; height: 44px;
  border: 3px solid var(--surface-3);
  border-top-color: var(--accent);
  border-right-color: var(--accent-2);
  border-radius: 50%;
  animation: sp 0.7s linear infinite;
  margin: 0 auto 16px;
}
@keyframes sp { to { transform: rotate(360deg); } }
.ov-msg { color: var(--text-soft); font-size: 0.85rem; letter-spacing: 2px; font-weight: 600; }

/* ── TOASTS ── */
.toasts {
  position: fixed; top: 22px; right: 22px;
  z-index: 600;
  display: flex; flex-direction: column; gap: 10px;
  pointer-events: none;
}
.toast {
  pointer-events: auto;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left-width: 3px;
  border-radius: 12px; padding: 12px 16px;
  min-width: 260px; max-width: 360px;
  display: flex; align-items: flex-start; gap: 10px;
  box-shadow: 0 14px 36px rgba(15,23,42,.10);
  backdrop-filter: blur(14px);
  font-size: 0.82rem; line-height: 1.5;
  animation: t-in 0.24s ease;
}
.toast.out { animation: t-out 0.24s ease forwards; }
@keyframes t-in  { from{opacity:0;transform:translateX(14px)} to{opacity:1;transform:none} }
@keyframes t-out { from{opacity:1;transform:none} to{opacity:0;transform:translateX(14px)} }

.t-ic  { font-size: 1rem; flex-shrink: 0; margin-top: 1px; }
.t-bd  { flex: 1; }
.t-ttl { font-weight: 700; margin-bottom: 2px; color: var(--text); }
.t-msg { color: var(--text-soft); font-size: 0.78rem; }

.toast.info { border-left-color: var(--accent); } .toast.info .t-ttl { color: var(--accent); }
.toast.ok   { border-left-color: var(--ok);     } .toast.ok   .t-ttl { color: var(--ok); }
.toast.err  { border-left-color: var(--danger); } .toast.err  .t-ttl { color: var(--danger); }
.toast.warn { border-left-color: var(--warn);   } .toast.warn .t-ttl { color: var(--warn); }

/* ── FOOTER ── */
footer {
  flex-shrink: 0; height: 38px;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 22px;
  font-size: 0.68rem; color: var(--muted);
  letter-spacing: 1.4px; font-weight: 500;
  background: color-mix(in srgb, var(--surface) 70%, transparent);
  border-top: 1px solid var(--border-soft);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

/* ── Shared enter animation ── */
@keyframes el-enter { to { opacity: 1; transform: none; } }

/* ══════════════════════════════════════════
   RESPONSIVE
══════════════════════════════════════════ */
@media (max-width: 900px) {
  .stats { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 640px) {
  .stats  { grid-template-columns: 1fr; }
  .cgrid  { grid-template-columns: 1fr; }
  #topTime { font-size: 1.3rem; }
  #topDate { display: none; }
  footer   { display: none; }
  .manual-btn .mb-lbl { display: none; }
  .manual-btn { padding: 7px 10px; }
}