/* ==========================================================
   roybase 个人主页 — 样式
   主体：自托管基础设施 + AI 工具（终端世界）
   签名元素：终端风首屏（打字机 + 闪烁光标）
   调色板：深渊蓝黑底 + 青色主强调（继承 Dashy）+ 琥珀次强调
   ========================================================== */

:root {
  --bg: #0a0e14;          /* abyss：页面底色 */
  --bg-card: #111722;     /* panel：卡片底 */
  --accent: #6ee7ff;      /* signal：主强调（链接/状态/高亮） */
  --accent-warm: #ffb86b; /* ember：次强调（天气/光标/点缀） */
  --text: #e6edf3;        /* phosphor：正文 */
  --text-dim: #8b98a9;    /* ghost：次要文字 */
  --border: #1e2a3a;      /* grid：卡片边框 */
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Consolas, "Liberation Mono", monospace;
  --sans: system-ui, -apple-system, "PingFang SC", "Microsoft YaHei", sans-serif;
  --radius: 10px;
  --maxw: 1080px;
}

* { box-sizing: border-box; margin: 0; }
html { scroll-behavior: smooth; }
body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  line-height: 1.6;
  /* 细网格底纹：终端/工程感，极淡 */
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  background-attachment: fixed;
}
/* 网格底纹压暗，避免抢内容 */
body::before {
  content: "";
  position: fixed; inset: 0;
  background: rgba(10, 14, 20, 0.82);
  pointer-events: none;
  z-index: -1;
}

::selection { background: rgba(110, 231, 255, 0.25); }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; border-radius: 4px; }

.container { max-width: var(--maxw); margin: 0 auto; padding: 0 20px; }
.mono { font-family: var(--mono); }
/* 屏幕阅读器专用：视觉隐藏但可被读屏/检索 */
.sr-only {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0, 0, 0, 0); white-space: nowrap; border: 0;
}

/* ============ 顶部导航 ============ */
#topnav {
  position: sticky; top: 0; z-index: 10;
  backdrop-filter: blur(12px);
  background: rgba(10, 14, 20, 0.78);
  border-bottom: 1px solid var(--border);
}
#topnav .nav-inner {
  max-width: var(--maxw); margin: 0 auto; padding: 0 20px;
  display: flex; align-items: center; gap: 18px; height: 52px;
}
#topnav .brand {
  font-family: var(--mono); font-size: 0.9rem; color: var(--text);
  white-space: nowrap;
}
#topnav .brand b { color: var(--accent); font-weight: 600; }
#topnav .nav-links {
  display: flex; gap: 4px; margin-left: auto;
  overflow-x: auto; scrollbar-width: none;
}
#topnav .nav-links::-webkit-scrollbar { display: none; }
#topnav .nav-links a {
  font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim);
  padding: 4px 10px; border-radius: 6px; white-space: nowrap;
}
#topnav .nav-links a:hover { color: var(--accent); text-decoration: none; background: rgba(110, 231, 255, 0.08); }

/* ============ 区块通用 ============ */
section { padding: 56px 0 8px; }
section > .section-head { margin-bottom: 24px; }
.eyebrow {
  font-family: var(--mono); font-size: 0.75rem; letter-spacing: 0.18em;
  text-transform: uppercase; color: var(--accent-warm);
}
.section-head h2 {
  font-size: 1.5rem; font-weight: 700; margin-top: 4px;
}
.section-head .section-sub { color: var(--text-dim); font-size: 0.9rem; margin-top: 6px; }

/* ============ 卡片通用 ============ */
.card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(110, 231, 255, 0.45);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}
a.card { display: block; color: inherit; }
a.card:hover { text-decoration: none; }

/* ============ 首屏：终端窗口 ============ */
#hero { padding-top: 48px; }
.terminal {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.45);
}
.terminal-bar {
  display: flex; align-items: center; gap: 7px;
  padding: 10px 14px;
  background: #0d1320;
  border-bottom: 1px solid var(--border);
}
.terminal-bar .dot { width: 11px; height: 11px; border-radius: 50%; }
.terminal-bar .dot.r { background: #ff5f57; }
.terminal-bar .dot.y { background: #febc2e; }
.terminal-bar .dot.g { background: #28c840; }
.terminal-title {
  margin-left: 10px; font-family: var(--mono); font-size: 0.75rem; color: var(--text-dim);
}
.terminal-body { padding: 24px; }
.prompt-line {
  font-family: var(--mono); font-size: 1.05rem; line-height: 1.7;
  min-height: 1.7em;
  word-break: break-all;
}
.prompt { color: var(--accent); }
#typewriter { color: var(--text); }
.cursor {
  display: inline-block; width: 9px; height: 1.15em;
  background: var(--accent-warm);
  vertical-align: text-bottom;
  animation: blink 1.06s steps(1) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-cards {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px; margin-top: 22px;
}
.hero-cards .card { padding: 14px 16px; }
.hero-cards .card:hover { transform: none; } /* 小卡片不做上浮 */
.card-label {
  display: block; font-family: var(--mono); font-size: 0.7rem;
  letter-spacing: 0.14em; color: var(--text-dim); text-transform: uppercase;
  margin-bottom: 6px;
}
#clock { font-size: 1.5rem; color: var(--accent); }
#weather { font-size: 1.05rem; color: var(--accent-warm); }
#weather-card.hidden { display: none; }

/* ============ 服务枢纽 ============ */
.service-group { margin-bottom: 30px; }
.service-group h3 {
  font-family: var(--mono); font-size: 0.85rem; font-weight: 600;
  color: var(--text-dim); letter-spacing: 0.1em; text-transform: uppercase;
  margin-bottom: 14px;
  display: flex; align-items: center; gap: 10px;
}
.service-group h3::after {
  content: ""; flex: 1; height: 1px; background: var(--border);
}
.service-grid {
  display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px;
}
.service-card { position: relative; }
.service-card h4 { font-size: 1rem; font-weight: 600; }
.service-card p { color: var(--text-dim); font-size: 0.85rem; margin-top: 4px; }
.service-card .svc-url {
  display: block; margin-top: 10px;
  font-family: var(--mono); font-size: 0.72rem; color: var(--text-dim);
  overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.status-dot {
  position: absolute; top: 14px; right: 14px;
  width: 9px; height: 9px; border-radius: 50%;
  background: #4a5568; /* 未知/未加载 */
}
.status-dot.up { background: var(--accent); box-shadow: 0 0 8px rgba(110, 231, 255, 0.7); }
.status-dot.down { background: #ff5f57; box-shadow: 0 0 8px rgba(255, 95, 87, 0.6); }
.status-unknown-note {
  font-family: var(--mono); font-size: 0.75rem; color: var(--text-dim); margin-top: 10px;
}

/* ============ 导航工具 / 收藏文章 ============ */
.link-grid {
  display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px 20px;
}
.link-row {
  display: flex; align-items: baseline; gap: 10px;
  padding: 7px 10px; border-radius: 8px;
}
.link-row:hover { background: rgba(110, 231, 255, 0.06); }
.link-row a { color: var(--text); font-size: 0.92rem; }
.link-row a:hover { color: var(--accent); text-decoration: none; }
.link-row .link-note { color: var(--text-dim); font-size: 0.78rem; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

.bm-group { margin-bottom: 26px; }
.bm-group h3 {
  font-family: var(--mono); font-size: 0.85rem; font-weight: 600;
  color: var(--accent); letter-spacing: 0.08em;
  margin-bottom: 10px;
}

/* ============ 日志文章 ============ */
.article-list { display: grid; gap: 14px; }
.article-card h4 { font-size: 1.05rem; font-weight: 600; }
.article-card .article-date {
  font-family: var(--mono); font-size: 0.75rem; color: var(--text-dim);
}
.article-card p { color: var(--text-dim); font-size: 0.9rem; margin-top: 6px; }

/* 文章子页 */
.article-page { max-width: 760px; margin: 0 auto; padding: 48px 20px 80px; }
.article-page h1 { font-size: 1.9rem; margin: 10px 0 6px; }
.article-page .article-meta { font-family: var(--mono); font-size: 0.8rem; color: var(--text-dim); }
.article-page .article-body { margin-top: 28px; font-size: 1.02rem; }
.article-page .article-body p { margin-bottom: 1.1em; }
.article-page .back-link { display: inline-block; margin-top: 36px; font-family: var(--mono); font-size: 0.85rem; }

/* ============ 统计信息 ============ */
.stats-grid {
  display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 14px;
}
.stat-card { text-align: left; }
.stat-card .stat-value {
  font-family: var(--mono); font-size: 1.5rem; color: var(--accent);
}
.stat-card .stat-label {
  display: block; font-family: var(--mono); font-size: 0.7rem;
  letter-spacing: 0.14em; text-transform: uppercase; color: var(--text-dim); margin-top: 6px;
}

/* ============ 页脚 ============ */
footer {
  margin-top: 64px; padding: 28px 20px 40px;
  border-top: 1px solid var(--border);
  text-align: center;
  color: var(--text-dim); font-size: 0.85rem;
}
footer .mono { font-size: 0.78rem; }
footer a { color: var(--text-dim); }
footer a:hover { color: var(--accent); }

/* ============ 入场动画 ============ */
.reveal { opacity: 0; transform: translateY(14px); transition: opacity 0.5s ease, transform 0.5s ease; }
.reveal.in { opacity: 1; transform: none; }

/* ============ 响应式 ============ */
@media (max-width: 860px) {
  .service-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .stats-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}
@media (max-width: 560px) {
  section { padding-top: 40px; }
  .service-grid, .hero-cards, .link-grid, .stats-grid { grid-template-columns: 1fr; }
  .terminal-body { padding: 16px; }
  .prompt-line { font-size: 0.92rem; }
  #topnav .brand { font-size: 0.8rem; }
}

/* ============ 减少动态 ============ */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .cursor { animation: none; }
  .reveal { opacity: 1; transform: none; transition: none; }
  .card, .card:hover { transition: none; transform: none; }
}