/* ==========================================================================
   ITSC NTNU-style member page — CSS
   ========================================================================== */

:root {
  --color-primary: #1b3b6f;      /* deep NTNU blue */
  --color-primary-dark: #12294d;
  --color-accent: #a6192e;       /* NTNU red accent */
  --color-text: #333333;
  --color-text-light: #666666;
  --color-bg: #ffffff;
  --color-bg-soft: #f7f8fa;
  --color-border: #e2e5ea;
  --font-base: "Helvetica Neue", Arial, "Noto Sans TC", "PingFang TC", "Microsoft JhengHei", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: var(--font-base);
  color: var(--color-text);
  background-color: var(--color-bg);
  line-height: 1.6;
}

a {
  color: var(--color-primary);
  text-decoration: none;
}

a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

/* ---------------- Header ---------------- */

.site-header {
  background-color: var(--color-primary);
  color: #ffffff;
  padding: 40px 20px;
}

.header-inner {
  max-width: 960px;
  margin: 0 auto;
}

.site-name {
  margin: 0 0 8px 0;
  font-size: 0.85rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #c9d4e5;
}

.site-header h1 {
  margin: 0;
  font-size: 2rem;
  font-weight: 600;
  letter-spacing: 0.02em;
}

/* ---------------- Navigation ---------------- */

.site-nav {
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 10;
}

.nav-inner {
  max-width: 960px;
  margin: 0 auto;
  padding: 0 20px;
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
}

.site-nav li {
  margin: 0;
}

.site-nav a {
  display: block;
  padding: 16px 18px;
  font-size: 0.9rem;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 3px solid transparent;
}

.site-nav a:hover {
  color: var(--color-primary);
  text-decoration: none;
  border-bottom-color: var(--color-border);
}

.site-nav a.active {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

/* ---------------- Main content ---------------- */

main {
  max-width: 960px;
  margin: 0 auto;
  padding: 20px 20px 60px 20px;
}

.page-title {
  padding: 30px 0 10px 0;
}

.page-title h2 {
  margin: 0;
  font-size: 1.6rem;
  color: var(--color-primary-dark);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
  padding-bottom: 6px;
}

.member-section {
  margin-top: 40px;
}

.section-heading {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin: 0 0 20px 0;
  padding-bottom: 8px;
  border-bottom: 1px solid var(--color-border);
}

/* ---------------- Member card ---------------- */

.member-card {
  display: flex;
  gap: 24px;
  padding: 24px;
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  margin-bottom: 20px;
}

.member-card.simple {
  padding: 18px 24px;
}

.member-photo-placeholder {
  flex: 0 0 120px;
  width: 120px;
  height: 120px;
  border-radius: 50%;
  background-color: #dfe4ec;
  border: 1px solid var(--color-border);
}

.member-info {
  flex: 1 1 auto;
}

.member-name {
  margin: 0 0 6px 0;
  font-size: 1.3rem;
  color: var(--color-primary-dark);
}

.member-title {
  margin: 0 0 10px 0;
  font-weight: 600;
  color: var(--color-accent);
  font-size: 0.95rem;
}

.member-detail {
  margin: 0 0 6px 0;
  font-size: 0.92rem;
  color: var(--color-text-light);
}

.member-publication {
  margin-top: 12px;
  font-size: 0.9rem;
}

.member-publication a {
  font-weight: 600;
}

/* ---------------- Generic content sections ---------------- */

.content-section {
  margin-top: 40px;
  scroll-margin-top: 70px;
}

.content-section:first-child {
  margin-top: 20px;
}

.section-title {
  font-size: 1.6rem;
  color: var(--color-primary-dark);
  border-bottom: 2px solid var(--color-accent);
  display: inline-block;
  padding-bottom: 6px;
  margin: 0 0 20px 0;
}

.section-body {
  background-color: var(--color-bg-soft);
  border: 1px solid var(--color-border);
  border-radius: 6px;
  padding: 24px;
  font-size: 0.95rem;
  color: var(--color-text);
}

.section-body p {
  margin: 0 0 12px 0;
}

.section-body p:last-child {
  margin-bottom: 0;
}

/* ---------------- Footer ---------------- */

.site-footer {
  background-color: var(--color-primary-dark);
  color: #cfd7e6;
  text-align: center;
  padding: 24px 20px;
  font-size: 0.85rem;
}

/* ---------------- Responsive ---------------- */

@media (max-width: 600px) {
  .member-card {
    flex-direction: column;
    align-items: flex-start;
  }

  .site-header h1 {
    font-size: 1.5rem;
  }
}