/* ==========================================
   超级大黄的窝 — 设计系统 v2 (non-destructive)
   只新增，不覆盖旧模板 <style>
   ========================================== */

/* --- CSS 变量 --- */
:root {
  --bg: #0f0f13;
  --bg-card: rgba(255,255,255,0.04);
  --bg-card-hover: rgba(255,255,255,0.08);
  --border: rgba(255,255,255,0.08);
  --border-hover: rgba(255,255,255,0.14);
  --text: #e0e0e0;
  --text-secondary: #999;
  --text-muted: #555;
  --accent: #fbbf24;
  --accent-hover: #f59e0b;
  --accent-soft: rgba(251,191,36,0.1);
  --danger: #ef4444;
  --danger-soft: rgba(239,68,68,0.1);
  --success: #22c55e;
  --success-soft: rgba(34,197,94,0.1);
  --info: #3b82f6;
  --info-soft: rgba(59,130,246,0.1);
  --purple: #a78bfa;
  --purple-soft: rgba(167,139,250,0.1);
  --pink: #f472b6;
  --pink-soft: rgba(244,114,182,0.1);
  --cyan: #22d3ee;
  --cyan-soft: rgba(34,211,238,0.1);
  --green: #4ade80;
  --green-soft: rgba(74,222,128,0.1);
  --radius: 12px;
  --radius-lg: 16px;
  --radius-sm: 8px;
  --shadow: 0 1px 3px rgba(0,0,0,0.3);
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Noto Sans SC", sans-serif;
  --mono: "SF Mono", "Cascadia Code", "Fira Code", Consolas, monospace;
}

/* === NEW COMPONENTS ONLY (non-conflicting classes) === */

/* --- Navigation --- */
.nav-bar {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 8px 20px;
  background: rgba(15,15,19,0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 100;
}

.nav-brand {
  font-weight: 800;
  font-size: 1rem;
  color: var(--accent);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  letter-spacing: -0.5px;
}
.nav-brand:hover { background: var(--accent-soft); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
  overflow-x: auto;
  scrollbar-width: none;
  flex: 1;
  justify-content: center;
}
.nav-links::-webkit-scrollbar { display: none; }

.nav-link {
  color: var(--text-secondary);
  text-decoration: none;
  padding: 6px 14px;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  white-space: nowrap;
  transition: all 0.15s;
}
.nav-link:hover { color: var(--text); background: var(--bg-card-hover); }

.nav-disk {
  display: flex;
  align-items: center;
  gap: 6px;
  font-size: 0.7rem;
  color: var(--text-muted);
  white-space: nowrap;
  padding: 4px 10px;
  background: var(--bg-card);
  border-radius: 20px;
}

.nav-disk-bar {
  width: 36px;
  height: 4px;
  background: rgba(255,255,255,0.06);
  border-radius: 2px;
  overflow: hidden;
}
.nav-disk-bar-fill {
  display: block;
  height: 100%;
  border-radius: 2px;
  transition: width 0.5s;
}

.nav-logout {
  color: var(--danger);
  text-decoration: none;
  font-size: 0.85rem;
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  opacity: 0.7;
  transition: all 0.15s;
}
.nav-logout:hover { opacity: 1; background: var(--danger-soft); }

/* --- Navigation grid cards (homepage) --- */
.nav-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
  gap: 16px;
  max-width: 850px;
  width: 100%;
}

.nav-card {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding: 28px 16px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  text-decoration: none;
  color: var(--text);
  transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
  cursor: pointer;
}
.nav-card:hover {
  background: var(--bg-card-hover);
  transform: translateY(-3px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3);
}

.nav-card .icon { font-size: 2.5rem; line-height: 1; }
.nav-card .label { font-size: 1rem; font-weight: 600; }
.nav-card .desc { font-size: 0.72rem; color: var(--text-muted); text-align: center; }

/* Card accent border-colors */
.nav-card.files   { border-top: 2px solid var(--info); }
.nav-card.images  { border-top: 2px solid var(--purple); }
.nav-card.notes   { border-top: 2px solid var(--accent); }
.nav-card.links   { border-top: 2px solid var(--cyan); }
.nav-card.paste   { border-top: 2px solid var(--pink); }
.nav-card.todos   { border-top: 2px solid var(--success); }
.nav-card.status  { border-top: 2px solid var(--info); }
.nav-card.share   { border-top: 2px solid var(--purple); }
.nav-card.shorten { border-top: 2px solid var(--cyan); }
.nav-card.search  { border-top: 2px solid var(--pink); }
.nav-card.countdown { border-top: 2px solid var(--accent); }

/* Drag states */
.nav-card.dragging { opacity: 0.3; transform: scale(0.95); }
.nav-card.drag-over { border-color: var(--accent); border-style: dashed; background: var(--accent-soft); transform: translateY(-3px); }

/* --- Greeting --- */
.greeting {
  font-size: 1.5rem;
  font-weight: 700;
  margin-bottom: 28px;
  color: var(--text);
}

/* --- Login page --- */
.login-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 44px 36px;
  text-align: center;
  max-width: 380px;
  width: 90%;
  box-shadow: var(--shadow);
}
.login-avatar {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, rgba(251,191,36,0.15), rgba(251,191,36,0.4));
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin: 0 auto 16px;
}

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
  padding: 10px 22px;
  background: var(--accent);
  color: #0f0f13;
  border: none;
  border-radius: var(--radius-sm);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: all 0.15s;
  font-family: var(--font);
}
.btn:hover { background: var(--accent-hover); transform: translateY(-1px); }

.btn-sm { padding: 6px 14px; font-size: 0.8rem; }
.btn-outline { background: transparent; color: var(--text-secondary); border: 1px solid var(--border); }
.btn-outline:hover { background: var(--bg-card-hover); color: var(--text); }
.btn-danger { background: var(--danger); }
.btn-danger:hover { background: #dc2626; }

/* --- Alerts --- */
.alert {
  padding: 10px 16px;
  border-radius: var(--radius-sm);
  font-size: 0.85rem;
  margin-bottom: 16px;
}
.alert-success { background: var(--success-soft); color: var(--success); }
.alert-error { background: var(--danger-soft); color: var(--danger); }

/* --- Footer --- */
.site-footer {
  text-align: center;
  padding: 16px;
  color: var(--text-muted);
  font-size: 0.75rem;
  border-top: 1px solid var(--border);
  
}
.site-footer a { color: var(--text-muted); text-decoration: none; }
.site-footer a:hover { color: var(--text-secondary); }

/* --- Tables --- */
table { width: 100%; border-collapse: collapse; }
th { text-align: left; padding: 8px 12px; font-size: 0.75rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; border-bottom: 1px solid var(--border); }
td { padding: 10px 12px; font-size: 0.88rem; border-bottom: 1px solid rgba(255,255,255,0.03); }
tr:hover td { background: rgba(255,255,255,0.015); }

/* --- Forms --- */
input[type="text"], input[type="password"], input[type="url"], input[type="search"], textarea, select {
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text);
  font-size: 0.9rem;
  font-family: var(--font);
  outline: none;
  transition: border-color 0.15s;
}
input:focus, textarea:focus, select:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px var(--accent-soft);
}

/* --- Layout helpers (non-conflicting names) --- */
.container { max-width: 900px; margin: 0 auto; padding: 28px 20px; }
.page-center { align-items: center; justify-content: center; }

/* --- Misc utility --- */
code { font-family: var(--mono); font-size: 0.85em; background: rgba(255,255,255,0.06); padding: 2px 6px; border-radius: 4px; }
.right { text-align: right; }

/* ========================================= */
/* Mobile */
/* ========================================= */
@media (max-width: 640px) {
  .nav-bar { padding: 6px 10px; gap: 2px; }
  .nav-brand { font-size: 0.9rem; padding: 4px 10px; }
  .nav-link { font-size: 0.8rem; padding: 4px 10px; }
  .nav-disk { display: none; }

  .nav-grid { grid-template-columns: repeat(auto-fill, minmax(100px, 1fr)); gap: 10px; }
  .nav-card { padding: 18px 10px; border-radius: var(--radius); }
  .nav-card .icon { font-size: 2rem; }
  .nav-card .label { font-size: 0.8rem; }
  .nav-card .desc { display: none; }

  .greeting { font-size: 1.2rem; margin-bottom: 20px; }

  .login-card { padding: 28px 20px; }
  .login-avatar { width: 52px; height: 52px; font-size: 1.6rem; }

  .btn { padding: 8px 16px; font-size: 0.85rem; }
  .site-footer { font-size: 0.7rem; padding: 12px; }
}