/* =========================
   Base colors & typography
   ========================= */

body {
  background-color: #F4F6FB;
  color: #4A4F63;
  font-family: 'Lora', serif;
  font-size: 16px;
  line-height: 1.7;
  margin: 0;
}

h1, h2, h3 {
  font-family: 'Roboto', sans-serif;
  margin-top: 0;
}

h1 {
  color: #2F3A5F;
  font-size: 32px;
  font-weight: 900;
  letter-spacing: 0.5px;
}

h2 {
  color: #2E9C7F;
  font-size: 22px;
  font-weight: 600;
  margin-bottom: 16px;
}

a {
  font-family: 'Roboto', sans-serif;
  text-decoration: none;
  color: #536DFE;
  font-weight: 500;
  transition: color 0.2s ease;
}

a:hover {
  color: #1C2540;
}

/* =========================
   Layout: container + sidebar
   ========================= */

.container {
  width: 960px;
  margin: 40px auto;
  padding: 0 16px;
  display: flex;
  align-items: flex-start;
  gap: 24px;
}

.sidebar {
  flex: 0 0 280px;
}

.page-content {
  flex: 1;
}

/* 卡片通用样式 */
.card-white {
  background-color: #FFFFFF;
  padding: 32px 32px 28px 32px;
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.08);
  border-radius: 8px;
  margin: 0 0 20px 0;
  text-align: left;
}

/* 只让介绍区域居中 */
#introduction {
  text-align: center;
}

/* =========================
   Responsive layout
   ========================= */

@media (max-width: 960px) {
  .container {
    width: 100%;
    margin: 24px auto;
    flex-direction: column;
  }

  .sidebar {
    flex: 1 1 auto;
  }
}

@media (max-width: 720px) {
  .card-white {
    padding: 24px 20px;
  }
}

@media (max-width: 540px) {
  body {
    font-size: 15px;
  }

  h1 {
    font-size: 26px;
  }

  h2 {
    font-size: 18px;
  }
}

/* =========================
   Images & avatar
   ========================= */

.img-circle {
  border-radius: 50%;
  display: block;
  margin: 0 auto 20px auto;
}

/* =========================
   Buttons
   ========================= */

.btn-blue {
  display: inline-block;
  background-color: #536DFE;
  color: #FFFFFF;
  padding: 12px 22px;
  border-radius: 24px;
  font-size: 15px;
  font-weight: 600;
  margin-top: 12px;
  transition: background-color 0.2s ease, transform 0.1s ease;
}

.btn-blue:hover {
  background-color: #2E3BB7;
  color: #FFFFFF;
  transform: translateY(-1px);
}

/* =========================
   Inline list (social icons & tags)
   ========================= */

.list-inline {
  list-style: none;
  padding-left: 0;
  margin: 16px 0 0 0;
}

.list-inline li {
  display: inline-block;
  margin: 0 6px;
}

/* 社交图标 */
.list-inline i {
  font-size: 32px;
  color: #D1D5E6;
  transition: color 0.2s ease, transform 0.1s ease;
}

.list-inline i:hover {
  color: #536DFE;
  transform: translateY(-1px);
}

/* 标签小 pill */
.tag {
  display: inline-block;
  padding: 4px 10px;
  border-radius: 999px;
  background-color: #EEF2FF;
  color: #4A4F63;
  font-size: 12px;
  font-family: 'Roboto', sans-serif;
}

/* =========================
   Text spacing adjustments
   ========================= */

#introduction p {
  margin-bottom: 16px;
}

/* 让项目块里最后一行更紧凑一点 */
#projects p:last-of-type {
  margin-bottom: 4px;
}

/* =========================
   Table styling (Study journey)
   ========================= */

table {
  width: 100%;
  border-collapse: collapse;
  margin-top: 12px;
  font-size: 14px;
}

thead {
  background-color: #EEF2FF;
}

th, td {
  padding: 10px 8px;
  text-align: left;
}

th {
  font-family: 'Roboto', sans-serif;
  font-weight: 600;
  color: #2F3A5F;
  border-bottom: 2px solid #D3DAF5;
}

tbody tr:nth-child(even) {
  background-color: #FAFBFF;
}

tbody tr:nth-child(odd) {
  background-color: #FFFFFF;
}

tbody tr:hover {
  background-color: #F0F3FF;
}

/* =========================
   Typeform wrapper
   ========================= */

.typeform-embed-wrapper {
  margin-top: 16px;
}

/* 小 tweak：侧边栏两个卡片之间不要太挤 */
#follow-me {
  margin-top: 20px;
}