/* HistorySync docs - custom styles */

:root {
  --hs-accent: #1a73e8;
  --hs-hero-bg: linear-gradient(135deg, #f8faff 0%, #eef4ff 100%);
  --hs-hero-border: rgba(26, 115, 232, 0.15);
  --hs-hero-text: #1e293b;
  --hs-hero-text-muted: #475569;
  --hs-hero-inner-glow: rgba(255, 255, 255, 0.8);
  --hs-hero-shadow: 0 10px 30px rgba(26, 115, 232, 0.08);
  --hs-card-bg: var(--md-default-bg-color);
  --hs-card-border: var(--md-default-fg-color--lightest);
  --hs-card-shadow-hover: rgba(0, 0, 0, 0.12);
}

[data-md-color-scheme="slate"] {
  --hs-accent: #66b1ff;
  --hs-hero-bg: linear-gradient(135deg, #0f172a 0%, #020617 100%);
  --hs-hero-border: rgba(100, 149, 237, 0.15);
  --hs-hero-text: #f8fafc;
  --hs-hero-text-muted: #cbd5e1;
  --hs-hero-inner-glow: rgba(255, 255, 255, 0.03);
  --hs-hero-shadow: 0 10px 30px rgba(0, 0, 0, 0.4);
  --hs-card-bg: var(--md-default-bg-color);
  --hs-card-border: var(--md-default-fg-color--lightest);
  --hs-card-shadow-hover: rgba(0, 0, 0, 0.4);
}

/* hero gradient banner on home page */
.hs-hero {
  background: var(--hs-hero-bg);
  border: 1px solid var(--hs-hero-border);
  border-radius: 20px;
  padding: 3.5rem 2rem;
  margin-bottom: 2.5rem;
  color: var(--hs-hero-text);
  text-align: center;
  box-shadow: inset 0 1px 0 var(--hs-hero-inner-glow), var(--hs-hero-shadow);
  position: relative;
  overflow: hidden;
}

/* subtle background pattern */
.hs-hero::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background-image: radial-gradient(var(--hs-hero-border) 1px, transparent 1px);
  background-size: 24px 24px;
  opacity: 0.6;
  pointer-events: none;
}
.hs-hero > * {
  position: relative;
  z-index: 1;
}

.hs-hero p { 
  color: var(--hs-hero-text-muted); 
  margin: 0 auto; 
  font-size: 1.15rem; 
  max-width: 650px;
  line-height: 1.6;
}
.hs-hero strong {
  color: var(--hs-hero-text);
  font-weight: 700;
}
.hs-hero > p:first-child {
  margin-bottom: 1.5rem;
}
.hs-hero > p:first-child img {
  display: inline-block;
  width: 360px;
  max-width: 100%;
  height: auto;
  aspect-ratio: 238 / 50; /* 提前预留准确的空间比例，彻底解决布局偏移(CLS)导致的抖动 */
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.06));
}
[data-md-color-scheme="slate"] .hs-hero > p:first-child img {
  filter: drop-shadow(0 4px 8px rgba(0,0,0,0.3));
}

/* hero CTA buttons - flex row so long English labels don't stack */
.hs-hero .md-button-group {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}
.hs-hero .md-button {
  margin-top: 0;
  margin-inline: 0;
  font-weight: 600;
  border-radius: 10px;
  padding: 0.75rem 1.75rem;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  font-size: 1rem;
  white-space: nowrap;
}
.hs-hero .md-button--primary {
  background-color: var(--hs-accent);
  color: #fff;
  border-color: var(--hs-accent);
  box-shadow: 0 4px 14px rgba(26, 115, 232, 0.3);
}
[data-md-color-scheme="slate"] .hs-hero .md-button--primary {
  color: #020617;
  box-shadow: 0 4px 14px rgba(102, 177, 255, 0.2);
}
.hs-hero .md-button--primary:hover {
  background-color: #1557b0;
  border-color: #1557b0;
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 115, 232, 0.4);
}
[data-md-color-scheme="slate"] .hs-hero .md-button--primary:hover {
  background-color: #8ab4f8;
  border-color: #8ab4f8;
  color: #020617;
  box-shadow: 0 6px 20px rgba(102, 177, 255, 0.3);
}

.hs-hero .md-button:not(.md-button--primary) {
  background-color: rgba(255, 255, 255, 0.8);
  border-color: var(--hs-hero-border);
  color: var(--hs-hero-text);
}
[data-md-color-scheme="slate"] .hs-hero .md-button:not(.md-button--primary) {
  background-color: rgba(30, 41, 59, 0.8);
  color: var(--hs-hero-text);
}
.hs-hero .md-button:not(.md-button--primary):hover {
  background-color: #fff;
  border-color: var(--hs-accent);
  color: var(--hs-accent);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26, 115, 232, 0.08);
}
[data-md-color-scheme="slate"] .hs-hero .md-button:not(.md-button--primary):hover {
  background-color: #1e293b;
  border-color: var(--hs-accent);
  color: var(--hs-accent);
  box-shadow: 0 6px 20px rgba(0, 0, 0, 0.4);
}

/* badge row */
.hs-badges { 
  display: flex; 
  flex-wrap: wrap; 
  gap: 0.6rem; 
  justify-content: center; 
  margin: 1.5rem 0 0.5rem; 
}

/* feature grid */
.hs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin: 2.5rem 0;
}
@media (max-width: 768px) {
  .hs-grid { grid-template-columns: 1fr; }
}
@media (min-width: 769px) and (max-width: 1024px) {
  .hs-grid { grid-template-columns: repeat(2, 1fr); }
}
.hs-card {
  background-color: var(--hs-card-bg);
  border: 1px solid var(--hs-card-border);
  border-radius: 12px;
  padding: 1.8rem;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  height: 100%;
}
.hs-card:hover { 
  box-shadow: 0 8px 24px var(--hs-card-shadow-hover); 
  transform: translateY(-4px);
  border-color: var(--hs-accent);
}
.hs-card strong { 
  display: block; 
  font-size: 1.2rem; 
  font-weight: 700;
  margin: 1rem 0 0.6rem; 
  color: var(--md-default-fg-color);
}
.hs-card strong a {
  color: inherit;
}
.hs-card p { 
  margin: 0; 
  font-size: 0.95rem; 
  color: var(--md-default-fg-color--light); 
  line-height: 1.6;
  flex-grow: 1;
}

.hs-card-icon {
  width: 2.6rem;
  height: 2.6rem;
  color: var(--hs-accent);
  display: block;
  flex-shrink: 0;
  margin-bottom: 0.5rem;
}
.hs-card-icon--fill {
  stroke: none;
}

/* download grid - compact row */
.hs-download-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
  margin: 2rem 0;
}
.hs-dl-card {
  background-color: var(--hs-card-bg);
  border: 1px solid var(--hs-card-border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: all 0.3s ease;
  text-align: center;
}
.hs-dl-card:hover { 
  box-shadow: 0 6px 20px var(--hs-card-shadow-hover); 
  border-color: var(--hs-accent);
  transform: translateY(-2px);
}
.hs-dl-card p { 
  margin: 0 0 1rem; 
  font-weight: 700; 
  font-size: 1.15rem; 
  color: var(--md-default-fg-color);
}
.hs-dl-card .md-button {
  display: block;
  margin: 0.6rem 0 0;
  padding: 0.6em 1em;
  font-size: 0.95rem;
  border-radius: 8px;
}

/* CLI reference styling */
.cli-flag { font-family: var(--md-code-font); font-weight: 600; color: var(--hs-accent); }

/* keyboard key styling */
kbd {
  background: var(--md-default-bg-color);
  border: 1px solid var(--md-default-fg-color--light);
  border-bottom-width: 2px;
  border-radius: 6px;
  padding: 2px 8px;
  font-size: 0.85em;
  font-family: var(--md-code-font);
  color: var(--md-default-fg-color);
}