/* ========================================
   education.css — #education 板块扩展
   学校徽记 / 研究与毕业设计 / 荣誉奖项
   只引用 style.css 的语义变量，四套主题自动适配。
   基调克制：无卡片、无阴影，靠留白 + 1px 线 + 字号层级分区。
   ======================================== */

.edu-extra {
  margin-top: clamp(3.5rem, 7vw, 5.5rem);
  display: flex;
  flex-direction: column;
  gap: clamp(3rem, 6vw, 4.5rem);
}

/* 通用小节头：mono 小字 + 1px 顶线 */
.edu-block {
  border-top: 1px solid var(--border);
  padding-top: 1.75rem;
}
.edu-block-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 1.75rem;
}
.edu-block-title {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--fg-dim);
}
.edu-block-hint {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.06em;
  color: var(--fg-dim);
  opacity: 0.75;
}

/* 占位文案：一眼能看出「这里要填」 */
.edu-placeholder {
  color: var(--fg-dim) !important;
  font-weight: 400 !important;
  border-bottom: 1px dashed var(--border-strong);
  padding-bottom: 0.0625rem;
}

/* =====================================================
   1. 学校徽记（logo / monogram）
   ===================================================== */
.edu-logos {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.edu-logo-item {
  display: flex;
  align-items: center;
  gap: 1.25rem;
  padding: 1.75rem 0;
  min-width: 0;
}
.edu-logo-item + .edu-logo-item {
  border-left: 1px solid var(--border);
  padding-left: clamp(1.5rem, 4vw, 3rem);
}
.edu-logo-item:first-child {
  padding-right: clamp(1.5rem, 4vw, 3rem);
}

/* 文字徽记：56px 方框，serif 缩写，accent 色 */
.edu-logo {
  flex: 0 0 56px;
  width: 56px;
  height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--border-strong);
  border-radius: 6px;
  font-family: var(--font-serif);
  font-weight: 700;
  font-size: 0.9375rem;
  letter-spacing: 0.02em;
  color: var(--accent);
  line-height: 1;
  user-select: none;
  transition: border-color 0.3s var(--ease), color 0.3s var(--ease);
}
.edu-logo.is-long { font-size: 0.75rem; letter-spacing: 0; }
.edu-logo-item:hover .edu-logo {
  border-color: var(--accent);
  color: var(--accent-bright);
}

/* 图片 logo（data.education[i].logo 存在时启用） */
.edu-logo.has-img {
  border-color: var(--border);
  padding: 8px;
  background: var(--bg-1);
}
.edu-logo.has-img img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.edu-logo-meta { min-width: 0; }
.edu-logo-school {
  font-family: var(--font-serif);
  font-size: 1.0625rem;
  font-weight: 600;
  letter-spacing: -0.005em;
  color: var(--fg);
  line-height: 1.35;
}
.edu-logo-school a {
  color: inherit;
  text-decoration: none;
  transition: color 0.25s var(--ease);
}
.edu-logo-school a:hover { color: var(--accent); }
.edu-logo-degree {
  font-size: 0.875rem;
  color: var(--fg-muted);
  margin-top: 0.25rem;
  line-height: 1.5;
}
.edu-logo-period {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  margin-top: 0.375rem;
}

/* =====================================================
   2. 研究与毕业设计
   ===================================================== */
.thesis-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0 clamp(2rem, 5vw, 4rem);
}

.thesis-item { min-width: 0; }
.thesis-item + .thesis-item {
  border-left: 1px solid var(--border);
  padding-left: clamp(2rem, 5vw, 4rem);
  margin-left: calc(clamp(2rem, 5vw, 4rem) * -1);
}

.thesis-kicker {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.875rem;
}
.thesis-kicker .sep { color: var(--fg-dim); margin: 0 0.4em; }

.thesis-title {
  font-family: var(--font-serif);
  font-size: clamp(1.125rem, 1.6vw, 1.375rem);
  font-weight: 600;
  line-height: 1.35;
  letter-spacing: -0.01em;
  color: var(--fg);
  margin: 0 0 0.75rem;
  max-width: 62ch;
  text-wrap: balance;
}
.thesis-title .edu-placeholder { display: inline-block; }

.thesis-summary {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--fg-muted);
  max-width: 62ch;
  margin: 0 0 1rem;
}

.thesis-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem 0.5rem;
  margin-bottom: 0.875rem;
}
.thesis-tags:empty { display: none; }
.thesis-tag {
  font-family: var(--font-mono);
  font-size: 0.6875rem;
  letter-spacing: 0.04em;
  color: var(--fg-dim);
  padding: 0.2rem 0.55rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  transition: color 0.25s var(--ease), border-color 0.25s var(--ease);
}
.thesis-item:hover .thesis-tag { border-color: var(--border-strong); }
.thesis-tag.is-placeholder { border-style: dashed; }

.thesis-result {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  color: var(--second);
}
.thesis-result:empty { display: none; }
.thesis-result::before {
  content: '';
  display: inline-block;
  width: 10px; height: 1px;
  background: var(--second);
  vertical-align: middle;
  margin-right: 0.5rem;
  opacity: 0.7;
}

/* =====================================================
   3. 荣誉奖项
   ===================================================== */
.edu-award-list {
  list-style: none;
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--border);
}
.edu-award-item {
  display: grid;
  grid-template-columns: 7ch minmax(0, 1fr);
  gap: 1.5rem;
  align-items: baseline;
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
}
.edu-award-year {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.08em;
  color: var(--fg-dim);
  transition: color 0.3s var(--ease);
}
.edu-award-item:hover .edu-award-year { color: var(--accent); }
.edu-award-body { min-width: 0; }
.edu-award-title {
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--fg);
  line-height: 1.5;
}
.edu-award-note {
  font-size: 0.8125rem;
  color: var(--fg-muted);
  line-height: 1.6;
  margin-top: 0.2rem;
  max-width: 62ch;
}
.edu-award-note:empty { display: none; }

/* =====================================================
   入场：复用站内 .reveal 视觉（由 education.js 自带 IO 触发 .visible）
   ===================================================== */
.edu-extra .reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.edu-extra .reveal.visible { opacity: 1; transform: none; }

/* =====================================================
   浅色主题微调（成对写）
   ===================================================== */
[data-palette="frost"] .edu-logo,
[data-palette="mist"] .edu-logo {
  color: var(--accent-dim);
}
[data-palette="frost"] .edu-logo-item:hover .edu-logo,
[data-palette="mist"] .edu-logo-item:hover .edu-logo {
  color: var(--accent);
}
[data-palette="frost"] .edu-logo.has-img,
[data-palette="mist"] .edu-logo.has-img {
  background: transparent;
}

/* =====================================================
   响应式
   ===================================================== */
@media (max-width: 720px) {
  .edu-logos { grid-template-columns: 1fr; }
  .edu-logo-item { padding: 1.375rem 0; }
  .edu-logo-item:first-child { padding-right: 0; }
  .edu-logo-item + .edu-logo-item {
    border-left: 0;
    border-top: 1px solid var(--border);
    padding-left: 0;
  }

  .thesis-grid { grid-template-columns: 1fr; gap: 2rem 0; }
  .thesis-item + .thesis-item {
    border-left: 0;
    border-top: 1px solid var(--border);
    padding-left: 0;
    padding-top: 2rem;
    margin-left: 0;
  }

  .edu-award-item { grid-template-columns: 5.5ch minmax(0, 1fr); gap: 1rem; }
  .edu-block-head { flex-direction: column; gap: 0.375rem; }
}

/* =====================================================
   无障碍降级
   ===================================================== */
@media (prefers-reduced-motion: reduce) {
  .edu-extra .reveal { opacity: 1; transform: none; transition: none; }
  .edu-logo, .edu-award-year, .thesis-tag, .edu-logo-school a { transition: none; }
}