/* =========================================================
   氷ノ箱庭 · pixel base
   重置 / 字体 / 面板 / 按钮 / 花纹
   ========================================================= */

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: 84px;
}

body {
  margin: 0;
  min-height: 100dvh;
  color: var(--ink);
  font-family: var(--font-pixel);
  font-size: 12px;
  line-height: 1.9;
  -webkit-font-smoothing: none;
  -moz-osx-font-smoothing: grayscale;
  font-smooth: never;
  text-rendering: optimizeSpeed;
  background-color: var(--bg);
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.5) 0 2px, transparent 2px 4px),
    repeating-conic-gradient(var(--bg-2) 0 25%, var(--bg) 0 50%);
  background-size: 100% 4px, 12px 12px;
}

[data-theme='dark'] body {
  background-image:
    repeating-linear-gradient(0deg, rgba(255, 255, 255, 0.014) 0 2px, transparent 2px 4px),
    repeating-conic-gradient(var(--bg-2) 0 25%, var(--bg) 0 50%);
  background-size: 100% 4px, 12px 12px;
}

/* 深色下把照片压暗一点，避免大面积高光刺眼 */
[data-theme='dark'] .hero__media img,
[data-theme='dark'] .article-hero img,
[data-theme='dark'] .album__img img,
[data-theme='dark'] .post-card__thumb img,
[data-theme='dark'] .gallery__item img,
[data-theme='dark'] .fp__cover img,
[data-theme='dark'] .prose img,
[data-theme='dark'] .cardflip__card img {
  filter: brightness(0.86) saturate(0.92);
}

img,
svg,
video,
canvas {
  display: block;
  max-width: 100%;
}

h1,
h2,
h3,
h4,
p,
figure,
blockquote,
dl,
dd,
ul,
ol {
  margin: 0;
}

ul,
ol {
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
textarea {
  font: inherit;
  color: inherit;
}

button {
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

::selection {
  background: var(--pink);
  color: var(--ink);
}

:focus-visible {
  outline: 3px solid var(--cyan-deep);
  outline-offset: 2px;
}

.skip-link {
  position: fixed;
  left: 12px;
  top: 10px;
  z-index: 99;
  padding: 4px 10px;
  background: var(--paper);
  border: var(--bw) solid var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 12px;
  transform: translateY(-160%);
  transition: transform 120ms steps(2);
}

.skip-link:focus-visible {
  transform: none;
}

.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;
}

/* ------------------------------------------------------------------
   版面
   ------------------------------------------------------------------ */

.frame {
  width: 100%;
  max-width: var(--maxw);
  margin: 16px auto;
  padding: 10px;
  background: var(--paper);
  border: var(--bw) solid var(--border);
  box-shadow: 8px 8px 0 var(--shadow-color);
}

.container {
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: 12px;
}

.pixel-rule {
  border: 0;
  height: 3px;
  margin: 10px 0;
  background: repeating-linear-gradient(90deg, var(--ink) 0 6px, transparent 6px 10px);
}

/* ------------------------------------------------------------------
   面板
   ------------------------------------------------------------------ */

.panel {
  background: var(--paper);
  border: var(--bw) solid var(--border);
  box-shadow: var(--shadow);
  min-width: 0;
}

.panel + .panel {
  margin-top: 12px;
}

.panel__head {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 3px 8px;
  background: var(--pink-soft);
  border-bottom: var(--bw) solid var(--border);
  font-size: 12px;
  letter-spacing: 0.02em;
  line-height: 1.6;
  color: var(--ink);
}

.panel__head .pi {
  font-size: 14px;
}

.panel__head b {
  font-weight: 400;
}

.panel__head .spacer {
  margin-left: auto;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  font-size: 10px;
  color: var(--ink-2);
}

.panel__body {
  padding: 10px;
}

.panel--cyan .panel__head {
  background: var(--cyan-soft);
}
.panel--mint .panel__head {
  background: var(--mint-soft);
}
.panel--lilac .panel__head {
  background: var(--lilac-soft);
}
.panel--butter .panel__head {
  background: var(--butter-soft);
}

/* ------------------------------------------------------------------
   按钮
   ------------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 5px;
  padding: 5px 10px;
  background: var(--paper);
  border: var(--bw) solid var(--border);
  box-shadow: var(--shadow-sm);
  font-size: 12px;
  line-height: 1.6;
  color: var(--ink);
  cursor: pointer;
  transition: transform 90ms steps(2), box-shadow 90ms steps(2), background-color 90ms steps(2);
}

.btn:hover {
  background: var(--butter-soft);
  transform: translate(-1px, -1px);
  box-shadow: 4px 4px 0 var(--shadow-color);
}

.btn:active {
  transform: translate(3px, 3px);
  box-shadow: 0 0 0 var(--shadow-color);
}

.btn--pink {
  background: var(--pink-soft);
}
.btn--cyan {
  background: var(--cyan-soft);
}
.btn--mint {
  background: var(--mint-soft);
}
.btn--filled {
  background: var(--pink);
  color: var(--ink);
}

.btn--sm {
  padding: 2px 7px;
  font-size: 11px;
  box-shadow: 2px 2px 0 var(--shadow-color);
  border-width: 2px;
}

.btn--icon {
  padding: 4px 6px;
}

/* 标签 */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 3px;
  padding: 1px 6px;
  border: 2px solid var(--border);
  background: var(--paper-2);
  font-size: 10px;
  line-height: 1.5;
  color: var(--ink);
  white-space: nowrap;
}

.chip--pink {
  background: var(--pink-soft);
}
.chip--cyan {
  background: var(--cyan-soft);
}
.chip--mint {
  background: var(--mint-soft);
}
.chip--lilac {
  background: var(--lilac-soft);
}
.chip--butter {
  background: var(--butter-soft);
}

/* 状态点 */
.dot {
  width: 8px;
  height: 8px;
  background: var(--green);
  border: 2px solid var(--border);
  display: inline-block;
  animation: blink 1.6s steps(1) infinite;
}

@keyframes blink {
  0%,
  49% {
    background: var(--green);
  }
  50%,
  100% {
    background: var(--paper-3);
  }
}

/* 分割 */
.dashed {
  border-top: 2px dashed var(--ink-3);
  margin: 8px 0;
}

/* 小字 */
.muted {
  color: var(--ink-2);
}
.tiny {
  font-size: 10px;
  line-height: 1.7;
  color: var(--ink-3);
}

/* 链接 */
.link {
  color: var(--ink);
  border-bottom: 2px solid var(--pink);
}

.link:hover {
  background: var(--pink-soft);
}

/* 图案条 */
.stripes {
  background-image: repeating-linear-gradient(
    45deg,
    var(--pink-soft) 0 6px,
    var(--paper) 6px 12px
  );
}

/* 滚动揭示：像素式，两帧到位 */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(4px);
  transition: opacity 120ms steps(2), transform 120ms steps(2);
}

.js [data-reveal].is-in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  .js [data-reveal] {
    opacity: 1;
    transform: none;
    transition: none;
  }
  .dot {
    animation: none;
  }
}

/* 像素滚动条 */
@supports selector(::-webkit-scrollbar) {
  ::-webkit-scrollbar {
    width: 14px;
    height: 14px;
  }
  ::-webkit-scrollbar-track {
    background: var(--paper-2);
    border-left: 3px solid var(--border);
  }
  ::-webkit-scrollbar-thumb {
    background: var(--pink);
    border: 3px solid var(--border);
  }
}