/* ==========================================================================
   UNICOM AI SALES ARENA — 设计令牌与通用组件
   视觉方向：AI COMMAND CENTER（指挥中心 / 竞技场），非传统后台
   字体全部使用系统自带，保证局域网离线环境可用
   ========================================================================== */

:root {
  /* 品牌与语义色 */
  --unicom-red: #e60012;
  --unicom-red-soft: #ff3b45;
  --data-cyan: #38e1ff;
  --data-teal: #17c8a5;
  --data-amber: #ffb020;
  --data-violet: #9b7bff;

  /* 中性色阶：深空蓝黑 */
  --ink-900: #04060d;
  --ink-800: #070b16;
  --ink-700: #0c1222;
  --ink-600: #131b2e;
  --ink-500: #1c2740;

  --line: rgba(255, 255, 255, 0.09);
  --line-strong: rgba(255, 255, 255, 0.18);

  --text-hi: #f2f6ff;
  --text: #c6d0e4;
  --text-dim: #7f8ca8;
  --text-faint: #4d5872;

  /* 字体 */
  --font-body: "Microsoft YaHei", "PingFang SC", "Hiragino Sans GB", system-ui, sans-serif;
  --font-display: "Bahnschrift", "DIN Alternate", "Arial Narrow", "Microsoft YaHei", sans-serif;
  --font-mono: "JetBrains Mono", "Cascadia Mono", Consolas, "Courier New", monospace;

  /* 尺度 */
  --radius-sm: 4px;
  --radius: 10px;
  --radius-lg: 18px;
  --gap: 16px;

  --dur-fast: 140ms;
  --dur: 260ms;
  --dur-slow: 620ms;
  --ease-out: cubic-bezier(0.16, 1, 0.3, 1);

  color-scheme: dark;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  background: var(--ink-900);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

/* 全局氛围层：红/青双光源 + 网格 + 细扫描线 */
.arena-bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  background:
    radial-gradient(1100px 620px at 8% -8%, rgba(230, 0, 18, 0.22), transparent 62%),
    radial-gradient(900px 700px at 105% 108%, rgba(56, 225, 255, 0.16), transparent 60%),
    linear-gradient(180deg, var(--ink-900) 0%, #060a14 55%, var(--ink-900) 100%);
}

.arena-bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.028) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.028) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(circle at 50% 40%, #000 15%, transparent 88%);
}

.arena-bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.016) 0 1px,
    transparent 1px 3px
  );
  opacity: 0.55;
}

/* --------------------------------------------------------------------------
   排版
   -------------------------------------------------------------------------- */
.kicker {
  font-family: var(--font-display);
  font-size: 12px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  color: var(--data-cyan);
  display: flex;
  align-items: center;
  gap: 10px;
}

.kicker::before {
  content: "";
  width: 22px;
  height: 2px;
  background: linear-gradient(90deg, var(--unicom-red), transparent);
}

h1,
h2,
h3 {
  color: var(--text-hi);
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.01em;
}

.display {
  font-family: var(--font-display);
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.02em;
}

.num {
  font-family: var(--font-display);
  font-variant-numeric: tabular-nums;
  font-weight: 700;
}

.muted {
  color: var(--text-dim);
}

.faint {
  color: var(--text-faint);
}

/* --------------------------------------------------------------------------
   面板：切角 + 顶部高光条，避免圆角卡片千篇一律
   -------------------------------------------------------------------------- */
.panel {
  position: relative;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.015));
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px;
  backdrop-filter: blur(6px);
}

.panel--notch {
  clip-path: polygon(0 0, calc(100% - 18px) 0, 100% 18px, 100% 100%, 18px 100%, 0 calc(100% - 18px));
  border-radius: 0;
}

.panel--glow::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--unicom-red-soft), transparent);
  opacity: 0.8;
}

.panel__title {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  flex-wrap: wrap;
  margin-bottom: 14px;
}

.panel__title h2,
.panel__title h3 {
  flex: 0 0 auto;
  font-size: 16px;
}

/* --------------------------------------------------------------------------
   按钮
   -------------------------------------------------------------------------- */
.btn {
  appearance: none;
  border: 1px solid var(--line-strong);
  background: rgba(255, 255, 255, 0.05);
  color: var(--text-hi);
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 18px;
  border-radius: var(--radius-sm);
  cursor: pointer;
  transition: transform var(--dur-fast) var(--ease-out),
    background var(--dur-fast), border-color var(--dur-fast), box-shadow var(--dur-fast);
}

.btn:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.32);
  transform: translateY(-1px);
}

.btn:active:not(:disabled) {
  transform: translateY(0) scale(0.985);
}

.btn:focus-visible {
  outline: 2px solid var(--data-cyan);
  outline-offset: 2px;
}

.btn:disabled {
  opacity: 0.42;
  cursor: not-allowed;
}

.btn--primary {
  background: linear-gradient(135deg, var(--unicom-red), #b3000e);
  border-color: transparent;
  box-shadow: 0 8px 26px rgba(230, 0, 18, 0.34);
}

.btn--primary:hover:not(:disabled) {
  background: linear-gradient(135deg, #ff1a2c, #c60011);
  box-shadow: 0 12px 34px rgba(230, 0, 18, 0.46);
}

.btn--ghost {
  background: transparent;
}

.btn--danger {
  border-color: rgba(255, 90, 90, 0.5);
  color: #ff9a9a;
}

.btn--lg {
  font-size: 17px;
  padding: 16px 26px;
  width: 100%;
}

.btn--sm {
  font-size: 12px;
  padding: 6px 12px;
}

.btn-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}

/* --------------------------------------------------------------------------
   表单
   -------------------------------------------------------------------------- */
.field {
  display: block;
  margin-bottom: 16px;
}

.field__label {
  display: block;
  font-size: 12px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--text-dim);
  margin-bottom: 8px;
}

.input,
.select,
.textarea {
  width: 100%;
  background: rgba(4, 8, 18, 0.7);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-sm);
  color: var(--text-hi);
  font-family: inherit;
  font-size: 15px;
  padding: 12px 14px;
  transition: border-color var(--dur-fast), box-shadow var(--dur-fast);
}

.textarea {
  min-height: 180px;
  line-height: 1.7;
  resize: vertical;
}

.input:focus,
.select:focus,
.textarea:focus {
  outline: none;
  border-color: var(--data-cyan);
  box-shadow: 0 0 0 3px rgba(56, 225, 255, 0.16);
}

.input::placeholder,
.textarea::placeholder {
  color: var(--text-faint);
}

/* --------------------------------------------------------------------------
   标签与状态
   -------------------------------------------------------------------------- */
.tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  padding: 4px 10px;
  border-radius: 999px;
  border: 1px solid var(--line-strong);
  color: var(--text-dim);
  white-space: nowrap;
}

.tag--live {
  color: #ffd7d9;
  border-color: rgba(230, 0, 18, 0.6);
  background: rgba(230, 0, 18, 0.15);
}

.tag--live::before {
  content: "";
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--unicom-red-soft);
  animation: pulse 1.4s infinite;
}

.tag--ok {
  color: #a9f5e2;
  border-color: rgba(23, 200, 165, 0.5);
  background: rgba(23, 200, 165, 0.12);
}

.tag--warn {
  color: #ffdfa6;
  border-color: rgba(255, 176, 32, 0.5);
  background: rgba(255, 176, 32, 0.12);
}

.tag--idle {
  color: var(--text-faint);
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
    transform: scale(1);
  }
  50% {
    opacity: 0.35;
    transform: scale(0.75);
  }
}

/* --------------------------------------------------------------------------
   进度与计时
   -------------------------------------------------------------------------- */
.meter {
  height: 8px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  overflow: hidden;
}

.meter__fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--data-cyan), var(--data-teal));
  transition: width var(--dur) var(--ease-out);
}

.meter__fill--hot {
  background: linear-gradient(90deg, var(--data-amber), var(--unicom-red));
}

/* --------------------------------------------------------------------------
   通用工具
   -------------------------------------------------------------------------- */
.stack {
  display: flex;
  flex-direction: column;
  gap: var(--gap);
}

.row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.spread {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.hidden {
  display: none !important;
}

.scroll {
  overflow-y: auto;
  scrollbar-width: thin;
  scrollbar-color: rgba(255, 255, 255, 0.2) transparent;
}

.scroll::-webkit-scrollbar {
  width: 6px;
  height: 6px;
}

.scroll::-webkit-scrollbar-thumb {
  background: rgba(255, 255, 255, 0.18);
  border-radius: 999px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 28px;
  transform: translateX(-50%) translateY(20px);
  background: rgba(8, 12, 24, 0.96);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--unicom-red);
  color: var(--text-hi);
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur), transform var(--dur) var(--ease-out);
  z-index: 999;
  max-width: min(92vw, 520px);
}

.toast.is-visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast--ok {
  border-left-color: var(--data-teal);
}

.toast--warn {
  border-left-color: var(--data-amber);
}

.empty {
  text-align: center;
  color: var(--text-faint);
  padding: 32px 16px;
  font-size: 14px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}