/* ==========================================================================
   《易經：終局算力》官方終端樣式表 // TERMINAL.CSS
   標準：Master Bible v1.3.4 // 70/15/15 重工調色板 // 瑞士等寬工程排版
   ========================================================================== */

:root {
  /* 70% 曜石黑大漆底層與機櫃基岩 */
  --obsidian-base: #0A0B0E;
  --obsidian-panel: #12141A;
  --obsidian-sub: #1A1D24;
  --border-dark: #1F2327;
  
  /* 15% 辰砂 · 絳紅 · 熾銅 (熱力學與過載警戒) */
  --copper-primary: #C5A059;
  --copper-hot: #D35400;
  --cinnabar-warn: #9E2A2B;
  
  /* 15% 電漿冰白 · 月白 · 霜雪 (相變與陽爻高電平) */
  --plasma-white: #F0F6FC;
  --frost-steam: #E2E8F0;
  
  /* 輔助冷調：深冷岩青 (陰爻接地基態) */
  --rock-cyan: #2C4A52;
  --rock-cyan-border: #1B3137;
  
  /* 瑞士等寬字體棧 */
  --font-terminal: "SF Mono", "Consolas", "Liberation Mono", Menlo, Courier, monospace;
}

/* 基礎重置 */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html, body {
  background-color: var(--obsidian-base);
  color: var(--plasma-white);
  font-family: var(--font-terminal);
  font-size: 14px;
  line-height: 1.6;
  letter-spacing: 0.03em;
  -webkit-font-smoothing: antialiased;
}

/* 背景微弱工業光學柵格 */
body {
  background-image: 
    linear-gradient(rgba(31, 35, 39, 0.25) 1px, transparent 1px),
    linear-gradient(90deg, rgba(31, 35, 39, 0.25) 1px, transparent 1px);
  background-size: 40px 40px;
  min-height: 100vh;
  padding: 24px;
}

.container {
  max-width: 1040px;
  margin: 0 auto;
}

/* 單行 HUD 系統微標記頂欄 */
.hud-status-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  padding: 10px 16px;
  background: var(--obsidian-panel);
  border: 1px solid var(--border-dark);
  border-left: 3px solid var(--copper-primary);
  font-size: 12px;
  color: var(--copper-primary);
  text-transform: uppercase;
  margin-bottom: 32px;
}

.hud-status-strip span {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.hud-status-strip .pulse-indicator {
  width: 6px;
  height: 6px;
  background-color: var(--copper-hot);
  border-radius: 50%;
  box-shadow: 0 0 6px var(--copper-hot);
  animation: pulse-glow 2s infinite ease-in-out;
}

@keyframes pulse-glow {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

/* 頂部標題宣告 */
header.portal-header {
  margin-bottom: 40px;
  border-bottom: 1px solid var(--border-dark);
  padding-bottom: 24px;
}

header.portal-header h1 {
  font-size: 28px;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--plasma-white);
  margin-bottom: 6px;
}

header.portal-header .sub-eng {
  color: var(--copper-primary);
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* 雙欄工程排版 */
.portal-grid {
  display: grid;
  grid-template-columns: 340px 1fr;
  gap: 32px;
  margin-bottom: 48px;
}

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

/* 1:1 HUD 面板封裝容器 */
.hud-card {
  background: var(--obsidian-panel);
  border: 1px solid var(--border-dark);
  padding: 20px;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.hud-canvas-container {
  width: 320px;
  height: 320px;
  position: relative;
  margin-bottom: 16px;
}

.hud-telemetry {
  width: 100%;
  font-size: 11px;
  color: #8B949E;
  border-top: 1px solid var(--border-dark);
  padding-top: 12px;
  display: flex;
  justify-content: space-between;
}

/* 資訊卡片規範 */
.data-card {
  background: var(--obsidian-panel);
  border: 1px solid var(--border-dark);
  padding: 24px;
  margin-bottom: 24px;
}

.data-card h2 {
  font-size: 15px;
  color: var(--copper-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.data-card h2::before {
  content: "//";
  color: var(--rock-cyan);
}

.data-card p {
  color: #A0AAB5;
  font-size: 13px;
  margin-bottom: 12px;
  text-align: justify;
}

.data-card strong {
  color: var(--plasma-white);
}

/* 商務授權按鈕 */
.btn-licensing-terminal {
  display: inline-block;
  background: transparent;
  color: var(--copper-primary);
  border: 1px solid var(--copper-primary);
  padding: 12px 20px;
  font-family: var(--font-terminal);
  font-size: 13px;
  text-decoration: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  transition: background 0.15s ease, color 0.15s ease;
  margin-top: 8px;
}

.btn-licensing-terminal:hover {
  background: var(--copper-primary);
  color: var(--obsidian-base);
  box-shadow: 0 0 12px rgba(197, 160, 89, 0.3);
}

/* 頁尾定錨 */
footer.portal-footer {
  border-top: 1px solid var(--border-dark);
  padding-top: 24px;
  color: #6E7681;
  font-size: 11px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}