/* ===== SANJAGANI.COM — FULL REDESIGN ===== */

/* --- Reset --- */
*, *::before, *::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* --- Tokens (ISU Brand Palette) --- */
:root {
  --color-bg: #ffffff;
  --color-bg-soft: #f5f5f3;
  --color-bg-muted: #edece8;
  --color-text: #1a1a1a;
  --color-text-secondary: #4a4a4a;
  --color-text-muted: #7a7a72;
  --color-accent: #56758f;
  --color-accent-hover: #455f75;
  --color-accent-soft: #eef2f6;
  --color-isu-red: #CC0000;
  --color-isu-red-hover: #a80000;
  --color-isu-red-soft: #fdf2f2;
  --color-isu-yellow: #F6A917;
  --color-border: #dedcd6;
  --font-body: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-display: 'DM Serif Display', Georgia, 'Times New Roman', serif;
  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --max-w: 1080px;
}

/* ISU Red utility class */
.isu-red {
  color: var(--color-isu-red);
}

/* --- Base --- */
html { scroll-behavior: smooth; }

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img { max-width: 100%; height: auto; display: block; }

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s var(--ease);
}
a:hover { color: var(--color-accent-hover); }

/* ===================================================================
   NAVIGATION
   =================================================================== */
.nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav__logo {
  font-family: var(--font-display);
  font-size: 1.4rem;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}
.nav__logo:hover { color: var(--color-accent); }

.nav__links {
  list-style: none;
  display: none;
  gap: 0.25rem;
}

.nav__links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--color-text-secondary);
  padding: 0.4rem 0.65rem;
  border-radius: 6px;
  transition: all 0.2s var(--ease);
  text-decoration: none;
}

.nav__links a:hover,
.nav__links a.is-active {
  color: var(--color-accent);
  background: var(--color-accent-soft);
}

/* Hamburger — two lines that become X */
.nav__toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
  width: 36px;
  height: 36px;
  padding: 0;
  background: none;
  border: none;
  cursor: pointer;
  -webkit-tap-highlight-color: transparent;
}

.nav__toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
  margin-left: auto;
}

.nav__toggle span:last-child { width: 16px; }

.nav__toggle.is-open span:first-child {
  transform: rotate(45deg) translate(3px, 3px);
}
.nav__toggle.is-open span:last-child {
  width: 22px;
  transform: rotate(-45deg) translate(3px, -3px);
}

/* Mobile menu overlay */
.nav__links.is-open {
  display: flex;
  flex-direction: column;
  position: fixed;
  z-index: 200;
  inset: 60px 0 0 0;
  background: var(--color-bg);
  padding: 1.5rem 1.25rem 2rem;
  gap: 0.35rem;
  overflow-y: auto;
  animation: menuSlide 0.25s var(--ease);
}

.nav__links.is-open a {
  font-size: 1.15rem;
  padding: 0.85rem 1rem;
  border-radius: 10px;
}

@keyframes menuSlide {
  from { opacity: 0; transform: translateY(-8px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* Desktop nav */
@media (min-width: 768px) {
  .nav__inner { height: 64px; }
  .nav__links { display: flex; }
  .nav__toggle { display: none; }
  .nav__links.is-open {
    position: static;
    flex-direction: row;
    background: none;
    padding: 0;
    animation: none;
    inset: auto;
  }
}

/* ===================================================================
   HERO
   =================================================================== */
.hero {
  background: var(--color-bg-soft);
  border-bottom: 1px solid var(--color-border);
}

.hero__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 3.5rem 1.25rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 2.5rem;
}

.hero__label {
  display: inline-block;
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.hero__name {
  font-family: var(--font-display);
  font-size: clamp(2.4rem, 7vw, 4rem);
  line-height: 1.08;
  letter-spacing: -0.02em;
  color: var(--color-text);
  margin-bottom: 1rem;
}

.hero__role {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  line-height: 1.6;
  margin-bottom: 1.75rem;
}

.hero__role span {
  color: var(--color-text-muted);
  font-size: 0.95rem;
}

.hero__actions {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

/* Stats */
.hero__aside {
  border-top: 1px solid var(--color-border);
  padding-top: 2rem;
}

.hero__stats {
  display: flex;
  gap: 2rem;
}

.stat {
  display: flex;
  flex-direction: column;
}

.stat__number {
  font-family: var(--font-display);
  font-size: 2rem;
  color: var(--color-text);
  line-height: 1;
}

.stat__label {
  font-size: 0.8rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

@media (min-width: 768px) {
  .hero__inner {
    flex-direction: row;
    align-items: center;
    justify-content: space-between;
    padding: 5rem 2rem 4.5rem;
    gap: 3rem;
  }

  .hero__text { flex: 1; max-width: 560px; }

  .hero__aside {
    border-top: none;
    border-left: 1px solid var(--color-border);
    padding-top: 0;
    padding-left: 3rem;
  }

  .hero__stats {
    flex-direction: column;
    gap: 2rem;
  }

  .stat__number { font-size: 2.5rem; }
}

/* ===================================================================
   BUTTONS
   =================================================================== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.7rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  font-weight: 600;
  border-radius: 8px;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  text-decoration: none;
  -webkit-tap-highlight-color: transparent;
}

.btn:not(.btn--ghost) {
  background: var(--color-isu-red);
  color: #fff;
  border-color: var(--color-isu-red);
}

.btn:not(.btn--ghost):hover {
  background: var(--color-isu-red-hover);
  border-color: var(--color-isu-red-hover);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(204, 0, 0, 0.2);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-isu-red);
  color: var(--color-isu-red);
  background: var(--color-isu-red-soft);
}

/* Legacy button classes (other pages) */
.btn-primary {
  background: var(--color-isu-red);
  color: #fff;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  display: inline-flex;
  border: none;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.btn-primary:hover {
  background: var(--color-isu-red-hover);
  color: #fff;
  transform: translateY(-2px);
}

.btn-secondary {
  background: transparent;
  color: var(--color-isu-red);
  border: 2px solid var(--color-isu-red);
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.95rem;
  text-decoration: none;
  display: inline-flex;
  cursor: pointer;
  transition: all 0.2s var(--ease);
}
.btn-secondary:hover {
  background: var(--color-isu-red);
  color: #fff;
}

.btn-submit {
  background: var(--color-isu-red);
  color: #fff;
  padding: 0.85rem 2rem;
  border: none;
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s var(--ease);
  align-self: flex-start;
}
.btn-submit:hover {
  background: var(--color-isu-red-hover);
  transform: translateY(-2px);
}
.btn-submit:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* ===================================================================
   SECTIONS
   =================================================================== */
.section {
  padding: 3.5rem 0;
}

.section--alt {
  background: var(--color-bg-soft);
}

.section__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.section__inner > h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  letter-spacing: -0.01em;
  margin-bottom: 1.75rem;
}

/* Generic section heading for other pages */
section h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3vw, 2.1rem);
  letter-spacing: -0.01em;
  color: var(--color-text);
  margin-bottom: 1.5rem;
}

.section-title {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
  font-family: var(--font-display);
  margin-top: 2.5rem;
  margin-bottom: 1.25rem;
  padding-bottom: 0.5rem;
  border-bottom: 3px solid var(--color-isu-red);
  display: inline-block;
}

/* ===================================================================
   ABOUT
   =================================================================== */
.about {
  display: grid;
  gap: 2.5rem;
}

.about h2 {
  font-family: var(--font-display);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin-bottom: 1rem;
}

.about__lead p {
  font-size: 1.08rem;
  line-height: 1.75;
  color: var(--color-text-secondary);
  max-width: 600px;
}

.about__areas h3 {
  font-size: 0.82rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--color-text-muted);
  margin-bottom: 0.75rem;
}

.tags {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.tags li {
  padding: 0.45rem 1rem;
  border-radius: 100px;
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--color-accent-soft);
  color: var(--color-accent);
  border: 1px solid var(--color-border);
  transition: all 0.2s var(--ease);
}

.tags li:hover {
  background: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
}

@media (min-width: 768px) {
  .about {
    grid-template-columns: 1.3fr 1fr;
    align-items: start;
  }

  .section { padding: 5rem 0; }
  .section__inner { padding: 0 2rem; }
}

/* ===================================================================
   CREDENTIALS
   =================================================================== */
.credentials {
  display: grid;
  gap: 0.75rem;
}

.credential {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem;
  background: var(--color-bg);
  border-radius: 10px;
  border: 1px solid var(--color-border);
  transition: all 0.25s var(--ease);
}

.credential:hover {
  border-color: var(--color-accent);
  box-shadow: 0 2px 12px rgba(37, 99, 235, 0.06);
}

.credential__icon {
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 10px;
  background: var(--color-accent-soft);
  color: var(--color-accent);
}

.credential h3 {
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--color-text);
  margin-bottom: 0.15rem;
}

.credential p {
  font-size: 0.88rem;
  color: var(--color-text-muted);
}

@media (min-width: 640px) {
  .credentials { grid-template-columns: repeat(2, 1fr); }
}

/* ===================================================================
   EXPLORE GRID (Cards)
   =================================================================== */
.grid {
  display: grid;
  gap: 0.75rem;
}

.card {
  display: block;
  padding: 1.75rem;
  background: var(--color-bg-soft);
  border-radius: 12px;
  text-decoration: none;
  transition: all 0.25s var(--ease);
  border: 1px solid transparent;
}

.card:hover {
  background: var(--color-bg);
  border-color: var(--color-border);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.05);
  transform: translateY(-2px);
}

.card__num {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--color-isu-red);
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
  display: block;
}

.card h3 {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.35rem;
}

.card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  line-height: 1.5;
}

@media (min-width: 640px) {
  .grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 1024px) {
  .grid { grid-template-columns: repeat(3, 1fr); }
}

/* ===================================================================
   FOOTER
   =================================================================== */
.footer {
  border-top: 1px solid var(--color-border);
  padding: 2rem 0;
  text-align: center;
}

.footer__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.footer p {
  font-size: 0.85rem;
  color: var(--color-text-muted);
  line-height: 1.6;
}

.footer p:first-child {
  color: var(--color-text-secondary);
  font-weight: 500;
}

/* ===================================================================
   SCROLL-TO-TOP
   =================================================================== */
.scroll-top {
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  width: 40px;
  height: 40px;
  border-radius: 10px;
  background: var(--color-text);
  color: #fff;
  border: none;
  cursor: pointer;
  font-size: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(12px);
  transition: all 0.3s var(--ease);
  z-index: 50;
}

.scroll-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: var(--color-isu-red);
}

/* ===================================================================
   FADE-IN ANIMATION
   =================================================================== */
.fade-in {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease, transform 0.5s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================================================
   LEGACY COMPONENT SUPPORT (other pages)
   =================================================================== */

/* Container (used by other pages) */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding: 0 1.25rem;
}
@media (min-width: 640px) { .container { padding: 0 1.5rem; } }
@media (min-width: 1024px) { .container { padding: 0 2rem; } }

/* Legacy navbar styles (for pages still using old markup) */
.navbar {
  background: var(--color-bg);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--color-border);
}

.navbar .container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 60px;
}

.nav-brand {
  font-family: var(--font-display);
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: -0.02em;
  white-space: nowrap;
  text-decoration: none;
}
.nav-brand:hover { color: var(--color-accent); }

.nav-menu {
  display: none;
  list-style: none;
}

.nav-menu a {
  color: var(--color-text-secondary);
  text-decoration: none;
  font-size: 0.88rem;
  font-weight: 500;
  padding: 0.4rem 0.65rem;
  border-radius: 6px;
  transition: all 0.2s var(--ease);
  display: block;
}

.nav-menu a:hover,
.nav-menu a.active {
  color: var(--color-accent);
  background: var(--color-accent-soft);
}

/* Legacy hamburger */
.hamburger {
  display: flex;
  flex-direction: column;
  cursor: pointer;
  gap: 5px;
  padding: 8px;
  border-radius: 6px;
  transition: background 0.2s var(--ease);
  -webkit-tap-highlight-color: transparent;
}
.hamburger:hover { background: var(--color-bg-soft); }

.hamburger span {
  width: 22px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s var(--ease);
  transform-origin: center;
}

.hamburger.active span:nth-child(1) { transform: rotate(45deg) translate(5px, 5px); }
.hamburger.active span:nth-child(2) { opacity: 0; transform: scaleX(0); }
.hamburger.active span:nth-child(3) { transform: rotate(-45deg) translate(5px, -5px); }

.nav-menu.active {
  display: flex;
  flex-direction: column;
  position: fixed;
  z-index: 200;
  top: 60px;
  left: 0;
  right: 0;
  bottom: 0;
  background: var(--color-bg);
  padding: 1.5rem 1.25rem;
  gap: 0.35rem;
  animation: menuSlide 0.25s var(--ease);
  overflow-y: auto;
}

.nav-menu.active a {
  font-size: 1.15rem;
  padding: 0.85rem 1rem;
}

.nav-actions { display: flex; align-items: center; }
.theme-toggle { display: none; }

/* Page header (used by other pages) */
.page-header {
  background: var(--color-bg-soft);
  color: var(--color-text);
  padding: 3rem 0;
  text-align: center;
  border-bottom: 1px solid var(--color-border);
}

.page-header h1 {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.8rem);
  letter-spacing: -0.02em;
  color: var(--color-text);
}

.page-header .subtitle {
  font-size: clamp(0.9rem, 1.5vw, 1.05rem);
  color: var(--color-text-secondary);
  margin-top: 0.5rem;
}

/* Sections (old markup) */
section {
  padding: 3.5rem 0;
}

/* About section (old markup) */
.about > .container > p {
  font-size: 1.05rem;
  color: var(--color-text-secondary);
  max-width: 700px;
  margin-bottom: 2rem;
}

.highlights {
  display: grid;
  grid-template-columns: 1fr;
  gap: 0.75rem;
  margin-top: 1.5rem;
}

.highlight-card {
  background: var(--color-bg-soft);
  padding: 1.75rem;
  border-radius: 10px;
  transition: all 0.25s var(--ease);
  border: 1px solid var(--color-border);
}

.highlight-card:hover {
  transform: translateY(-3px);
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.06);
  border-color: var(--color-accent);
}

.highlight-icon {
  color: var(--color-accent);
  margin-bottom: 1rem;
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background: var(--color-accent-soft);
  border-radius: 10px;
}

.highlight-card h3 {
  color: var(--color-text);
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.highlight-card p {
  color: var(--color-text-secondary);
  font-size: 0.93rem;
  line-height: 1.65;
}

/* Education */
.education-list { display: grid; gap: 0.75rem; }

.education-item {
  padding: 1.25rem 1.5rem;
  background: var(--color-bg-soft);
  border-left: 4px solid var(--color-isu-red);
  border-radius: 0 8px 8px 0;
  transition: all 0.2s var(--ease);
}

.education-item:hover { background: var(--color-bg); box-shadow: 0 2px 8px rgba(0,0,0,0.04); }
.education-item h3 { color: var(--color-text); font-size: 1.02rem; font-weight: 700; margin-bottom: 0.2rem; }
.institution { font-weight: 600; color: var(--color-accent); font-size: 0.93rem; }

.detail { color: var(--color-text-secondary); font-style: italic; font-size: 0.88rem; margin-top: 0.2rem; }

/* Timeline */
.timeline { position: relative; padding: 1rem 0; }
.timeline::before {
  content: '';
  position: absolute;
  left: 16px;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-isu-red), var(--color-border));
}

.timeline-item { position: relative; padding-left: 48px; margin-bottom: 2rem; }

.timeline-marker {
  position: absolute;
  left: 8px; top: 4px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: var(--color-isu-red);
  border: 3px solid var(--color-bg);
  box-shadow: 0 0 0 3px var(--color-isu-red);
  z-index: 1;
}

.timeline-content {
  background: var(--color-bg);
  padding: 1.25rem 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  transition: all 0.2s var(--ease);
}
.timeline-content:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.timeline-content h3 { color: var(--color-text); font-size: 1.02rem; font-weight: 700; margin-bottom: 0.2rem; }
.date { color: var(--color-accent); font-weight: 600; font-size: 0.85rem; }

/* Publications */
.publication-list { display: grid; gap: 0.75rem; }

.publication-item {
  padding: 1.25rem 1.5rem;
  background: var(--color-bg);
  border-radius: 10px;
  border: 1px solid var(--color-border);
  transition: all 0.25s var(--ease);
}

.publication-item:hover { border-color: var(--color-accent); box-shadow: 0 4px 12px rgba(0,0,0,0.05); transform: translateX(4px); }
.pub-authors { font-weight: 700; color: var(--color-text); font-size: 0.9rem; margin-bottom: 0.2rem; }
.pub-title { font-size: 1rem; color: var(--color-accent); font-weight: 600; margin-bottom: 0.2rem; line-height: 1.5; }
.pub-journal { color: var(--color-text-secondary); font-style: italic; font-size: 0.9rem; margin-bottom: 0.2rem; }
.pub-link a { color: var(--color-accent); font-size: 0.85rem; font-weight: 600; }
.pub-link a:hover { color: var(--color-accent-hover); text-decoration: underline; }

.working-papers, .guest-editor {
  background: var(--color-bg-soft);
  padding: 1.5rem;
  border-radius: 10px;
  margin-top: 1rem;
  border: 1px solid var(--color-border);
}

.paper-list { list-style: none; }
.paper-list li {
  margin-bottom: 1rem;
  padding-left: 1.25rem;
  position: relative;
  font-size: 0.93rem;
  color: var(--color-text-secondary);
  line-height: 1.65;
}
.paper-list li::before {
  content: '';
  position: absolute;
  left: 0; top: 10px;
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--color-isu-red);
}

/* Teaching */
.awards-section {
  background: var(--color-bg-soft);
  padding: 2rem 1.5rem;
  border-radius: 14px;
  margin-bottom: 2.5rem;
  border: 1px solid var(--color-border);
}

.award-grid { display: grid; grid-template-columns: 1fr; gap: 0.75rem; margin-top: 1.5rem; }

.award-card {
  background: var(--color-bg);
  padding: 1.5rem;
  border-radius: 10px;
  text-align: center;
  border: 1px solid var(--color-border);
  border-top: 4px solid var(--color-isu-red);
  transition: all 0.25s var(--ease);
}
.award-card:hover { transform: translateY(-3px); box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.award-card h3 { color: var(--color-text); font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.year { color: var(--color-accent); font-weight: 700; font-size: 1.1rem; }

.course-list { display: grid; gap: 0.75rem; }

.course-item {
  background: var(--color-bg);
  padding: 1.25rem 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-isu-red);
  transition: all 0.2s var(--ease);
}
.course-item:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.course-item h3 { color: var(--color-text); font-size: 1.02rem; font-weight: 700; margin-bottom: 0.2rem; }
.course-detail { font-weight: 600; color: var(--color-accent); font-size: 0.85rem; margin-bottom: 0.5rem; }
.course-desc { color: var(--color-text-secondary); font-size: 0.93rem; line-height: 1.65; }

/* Service */
.service-list { list-style: none; line-height: 1.7; }

.service-list > li {
  margin-bottom: 0.75rem;
  padding: 0.75rem 1rem 0.75rem 1.5rem;
  position: relative;
  background: var(--color-bg);
  border-radius: 8px;
  border: 1px solid var(--color-border);
  font-size: 0.93rem;
  transition: all 0.2s var(--ease);
}
.service-list > li:hover { border-color: var(--color-accent); }
.service-list > li::before {
  content: '';
  position: absolute; left: 0; top: 0; bottom: 0; width: 3px;
  background: var(--color-isu-red);
  border-radius: 3px 0 0 3px;
}

.service-list ul { list-style: none; padding-left: 1rem; margin-top: 0.5rem; }

.service-list ul li {
  padding: 0.25rem 0 0.25rem 1rem;
  position: relative;
  font-size: 0.88rem;
  color: var(--color-text-secondary);
  border: none; background: none; margin-bottom: 0;
}
.service-list ul li::before {
  content: '';
  position: absolute; left: 0; top: 12px;
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--color-text-muted);
}

.guest-editor-box {
  background: var(--color-bg-soft);
  padding: 1.5rem;
  border-radius: 10px;
  margin: 1rem 0 2rem;
  border: 1px solid var(--color-border);
  border-left: 4px solid var(--color-isu-red);
}

.media-section { display: grid; gap: 0.75rem; margin-top: 1.5rem; }

.media-item {
  background: var(--color-bg);
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  transition: all 0.2s var(--ease);
}
.media-item:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.05); border-color: var(--color-accent); }
.media-item h3 { color: var(--color-text); font-size: 1.02rem; font-weight: 700; margin-bottom: 0.2rem; }
.media-source { font-weight: 600; color: var(--color-accent); font-size: 0.9rem; }
.media-date { font-size: 0.85rem; color: var(--color-text-muted); margin-bottom: 0.75rem; }
.media-desc { color: var(--color-text-secondary); font-size: 0.93rem; line-height: 1.65; margin-bottom: 0.75rem; }
.media-item a { color: var(--color-accent); font-weight: 600; font-size: 0.9rem; }
.media-item a:hover { color: var(--color-accent-hover); }

/* Contact */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 1.5rem; }

.contact-info, .contact-form-section {
  background: var(--color-bg);
  padding: 1.5rem;
  border-radius: 14px;
  border: 1px solid var(--color-border);
}

.info-item { margin-bottom: 1.5rem; }
.info-item:last-child { margin-bottom: 0; }
.info-item h3 { color: var(--color-accent); font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.3rem; }
.info-item p { color: var(--color-text); font-size: 0.93rem; line-height: 1.6; }
.info-item a { color: var(--color-accent); font-weight: 600; }

.interests-box { background: var(--color-bg-soft); padding: 1.25rem; border-radius: 10px; }
.interests-list { list-style: none; display: flex; flex-wrap: wrap; gap: 0.5rem; }
.interests-list li {
  background: var(--color-bg);
  padding: 0.4rem 0.9rem;
  border-radius: 100px;
  font-size: 0.85rem;
  color: var(--color-text);
  border: 1px solid var(--color-border);
  transition: all 0.2s var(--ease);
}
.interests-list li:hover { border-color: var(--color-accent); color: var(--color-accent); }

/* Quick links (old pages) */
.quick-links-section { padding: 3.5rem 0; }

.link-cards { display: grid; grid-template-columns: 1fr; gap: 0.75rem; }

.link-card {
  display: block;
  background: var(--color-bg-soft);
  padding: 1.5rem;
  border-radius: 10px;
  border: 1px solid transparent;
  text-decoration: none;
  transition: all 0.25s var(--ease);
  position: relative;
  overflow: hidden;
}
.link-card::after {
  content: '\2192';
  position: absolute; right: 1.5rem; top: 50%;
  transform: translateY(-50%);
  font-size: 1.2rem;
  color: var(--color-accent);
  opacity: 0;
  transition: opacity 0.2s var(--ease);
}
.link-card:hover { border-color: var(--color-border); box-shadow: 0 6px 24px rgba(0,0,0,0.05); transform: translateY(-2px); background: var(--color-bg); }
.link-card:hover::after { opacity: 1; }
.link-card h3 { color: var(--color-text); font-size: 1.02rem; font-weight: 700; margin-bottom: 0.3rem; }
.link-card p { color: var(--color-text-muted); font-size: 0.9rem; line-height: 1.5; }

/* Projects */
.project-card {
  background: var(--color-bg);
  padding: 2rem;
  border-radius: 14px;
  border: 1px solid var(--color-border);
  transition: all 0.2s var(--ease);
  max-width: 600px;
}
.project-card:hover { box-shadow: 0 4px 12px rgba(0,0,0,0.05); }
.project-header { display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: 0.75rem; margin-bottom: 1rem; }
.project-link { color: var(--color-accent); font-size: 1.2rem; font-weight: 700; text-decoration: none; }
.project-link:hover { color: var(--color-accent-hover); }
.project-badge { background: var(--color-bg-soft); color: var(--color-text-muted); font-size: 0.8rem; font-weight: 600; padding: 0.3rem 0.75rem; border-radius: 100px; border: 1px solid var(--color-border); }
.project-desc { color: var(--color-text-secondary); font-size: 0.93rem; line-height: 1.65; margin-bottom: 0.75rem; }
.project-access { color: var(--color-text-muted); font-size: 0.85rem; font-style: italic; }

/* Connect form */
.connect-layout { display: grid; grid-template-columns: 1fr; gap: 2rem; }

.connect-form-wrapper {
  background: var(--color-bg);
  padding: 2rem;
  border-radius: 14px;
  border: 1px solid var(--color-border);
}
.connect-form-wrapper h2 { margin-bottom: 0.75rem; }
.connect-form-wrapper > p { color: var(--color-text-secondary); margin-bottom: 1.5rem; }

.contact-form { display: flex; flex-direction: column; gap: 1.25rem; }
.form-group { display: flex; flex-direction: column; gap: 0.35rem; }
.form-group label { font-weight: 600; font-size: 0.9rem; color: var(--color-text); }

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  font-family: var(--font-body);
  font-size: 0.93rem;
  color: var(--color-text);
  background: var(--color-bg);
  transition: all 0.2s var(--ease);
  -webkit-appearance: none;
  appearance: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(86, 117, 143, 0.12);
}

.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--color-text-muted); }

.form-group select {
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%238b95a5' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-group textarea { resize: vertical; min-height: 120px; }
.form-note { color: var(--color-text-muted); font-size: 0.85rem; }

.connect-info {
  background: var(--color-bg);
  padding: 2rem;
  border-radius: 14px;
  border: 1px solid var(--color-border);
}
.connect-info h2 { margin-bottom: 0.5rem; }
.connect-info > p { color: var(--color-text-secondary); margin-bottom: 1.5rem; }

.connect-link-card {
  background: var(--color-bg-soft);
  padding: 1.25rem;
  border-radius: 10px;
  margin-bottom: 0.75rem;
  border: 1px solid var(--color-border);
  transition: all 0.2s var(--ease);
}
.connect-link-card:last-child { margin-bottom: 0; }
.connect-link-card:hover { border-color: var(--color-accent); }
.connect-link-card h3 { color: var(--color-accent); font-size: 0.82rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.3rem; margin-top: 0; }
.connect-link-card p { color: var(--color-text); font-size: 0.93rem; line-height: 1.6; }
.connect-link-card a { color: var(--color-accent); font-weight: 600; }

/* Content sections */
.content { padding-bottom: 2rem; }
.content h2 { margin-top: 2rem; }
.content h2:first-child { margin-top: 0; }
.content h3 { font-size: 1.1rem; font-weight: 700; color: var(--color-text); margin-top: 1.5rem; margin-bottom: 0.75rem; }

/* ===================================================================
   RESPONSIVE — TABLET+
   =================================================================== */
@media (min-width: 640px) {
  section { padding: 4rem 0; }
  .highlights { grid-template-columns: repeat(2, 1fr); }
  .award-grid { grid-template-columns: repeat(2, 1fr); }
  .contact-grid { grid-template-columns: repeat(2, 1fr); gap: 2rem; }
  .media-section { grid-template-columns: repeat(2, 1fr); }
  .link-cards { grid-template-columns: repeat(2, 1fr); }
  .timeline::before { left: 20px; }
  .timeline-item { padding-left: 56px; }
  .timeline-marker { left: 12px; }
}

@media (min-width: 768px) {
  .navbar .container { height: 64px; }
  .nav-menu { display: flex; gap: 0.25rem; }
  .hamburger { display: none; }
  .nav-menu.active {
    position: static;
    flex-direction: row;
    background: none;
    padding: 0;
    animation: none;
  }
  .nav-menu a { font-size: 0.8rem; padding: 0.4rem 0.5rem; }
  .page-header { padding: 4rem 0; }
  .highlights { grid-template-columns: repeat(3, 1fr); }
  .awards-section { padding: 2.5rem; }
  .connect-layout { grid-template-columns: 3fr 2fr; }
}

@media (min-width: 1024px) {
  .nav-menu a { font-size: 0.85rem; padding: 0.45rem 0.7rem; }
  .award-grid { grid-template-columns: repeat(4, 1fr); }
  .link-cards { grid-template-columns: repeat(3, 1fr); }
  .timeline::before { left: 24px; }
  .timeline-item { padding-left: 64px; }
  .timeline-marker { left: 16px; }
  .timeline-content { padding: 1.5rem 2rem; }
}

/* ===================================================================
   PRINT
   =================================================================== */
@media print {
  .nav, .navbar, .hero__actions, .hero-buttons, .footer, footer, .scroll-top { display: none; }
  body { font-size: 12pt; color: #000; background: #fff; }
  a { color: #000; text-decoration: none; }
  .hero, .page-header { background: none !important; padding: 1rem 0; border: none; }
  section, .section { padding: 1rem 0; break-inside: avoid; }
}