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

:root {
  --primary: #1a56db;
  --primary-light: #2563eb;
  --primary-dark: #1e40af;
  --accent: #f59e0b;
  --accent-dark: #d97706;
  --text: #1f2937;
  --text-light: #6b7280;
  --bg: #ffffff;
  --bg-light: #f3f4f6;
  --bg-dark: #111827;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.12);
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: 'Pretendard', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.7;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.section-title {
  font-size: 2rem;
  font-weight: 800;
  text-align: center;
  margin-bottom: 0.5rem;
  color: var(--text);
}

.section-subtitle {
  text-align: center;
  color: var(--text-light);
  margin-bottom: 3rem;
  font-size: 1.1rem;
}

section {
  padding: 80px 0;
}

/* ===== Navigation ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: var(--transition);
}

.navbar.scrolled {
  border-bottom-color: #e5e7eb;
  box-shadow: 0 2px 12px rgba(0, 0, 0, 0.06);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 70px;
}

.nav-logo {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 800;
  font-size: 1.25rem;
  color: var(--primary);
}

.nav-logo .logo-photo {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  border: 2px solid var(--primary);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: 32px;
}

.nav-menu a {
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--text);
  transition: var(--transition);
  position: relative;
}

.nav-menu a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--primary);
  transition: var(--transition);
}

.nav-menu a:hover::after,
.nav-menu a.active::after {
  width: 100%;
}

.nav-menu a:hover {
  color: var(--primary);
}

.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  padding: 4px;
  background: none;
  border: none;
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2.5px;
  background: var(--text);
  border-radius: 2px;
  transition: var(--transition);
}

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

.hamburger.active span:nth-child(2) {
  opacity: 0;
}

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

/* ===== Hero Section ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #1a56db 0%, #2563eb 40%, #3b82f6 100%);
  color: #fff;
  position: relative;
  overflow: hidden;
  padding-top: 70px;
  padding-bottom: 40px;
}

.hero::before {
  content: '';
  position: absolute;
  top: -50%;
  right: -20%;
  width: 600px;
  height: 600px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: 50%;
}

.hero::after {
  content: '';
  position: absolute;
  bottom: -30%;
  left: -10%;
  width: 400px;
  height: 400px;
  background: rgba(245, 158, 11, 0.1);
  border-radius: 50%;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-badge {
  display: inline-block;
  background: rgba(255, 255, 255, 0.15);
  padding: 8px 20px;
  border-radius: 50px;
  font-size: 0.95rem;
  margin-bottom: 24px;
  backdrop-filter: blur(4px);
}

.hero h1 {
  font-size: 3.5rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 8px;
}

.hero h1 .name {
  display: block;
  font-size: 4.5rem;
  color: var(--accent);
}

.hero .slogan {
  font-size: 1.5rem;
  font-weight: 300;
  margin-bottom: 40px;
  opacity: 0.9;
  line-height: 1.6;
}

.hero-buttons {
  display: flex;
  gap: 16px;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 32px;
  border-radius: 50px;
  font-weight: 700;
  font-size: 1.05rem;
  transition: var(--transition);
  cursor: pointer;
  border: none;
  font-family: inherit;
}

.btn-primary {
  background: var(--accent);
  color: var(--text);
}

.btn-primary:hover {
  background: var(--accent-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(245, 158, 11, 0.3);
}

.btn-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ===== About Section ===== */
#about {
  background: var(--bg);
  padding-top: 40px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.5fr;
  gap: 60px;
  align-items: start;
}

.profile-image {
  width: 100%;
  aspect-ratio: 3/4;
  background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
  border-radius: var(--radius);
  overflow: hidden;
  position: sticky;
  top: 90px;
}

.profile-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top center;
}

.about-content h3 {
  font-size: 1.6rem;
  color: var(--primary);
  margin-bottom: 16px;
  font-weight: 800;
}

.about-content .greeting {
  font-size: 1.05rem;
  line-height: 1.9;
  color: var(--text-light);
  margin-bottom: 40px;
}

.timeline {
  position: relative;
  padding-left: 30px;
  margin-bottom: 40px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 3px;
  background: linear-gradient(to bottom, var(--primary), var(--accent));
  border-radius: 2px;
}

.timeline-item {
  position: relative;
  padding-bottom: 24px;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -34.5px;
  top: 6px;
  width: 12px;
  height: 12px;
  background: var(--primary);
  border-radius: 50%;
  border: 3px solid var(--bg);
  box-shadow: 0 0 0 2px var(--primary);
}

.timeline-item .year {
  font-weight: 800;
  color: var(--primary);
  font-size: 0.9rem;
  margin-bottom: 2px;
}

.timeline-item .desc {
  color: var(--text-light);
  font-size: 0.95rem;
}

.positions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.positions .tag {
  background: var(--bg-light);
  padding: 8px 16px;
  border-radius: 50px;
  font-size: 0.85rem;
  color: var(--text-light);
  font-weight: 500;
}

/* ===== Policies Section ===== */
#policies {
  background: var(--bg-light);
}

.policy-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.policy-card {
  background: var(--bg);
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: var(--transition);
  border: 1px solid transparent;
}

.policy-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: var(--primary);
}

.policy-card .icon {
  width: 56px;
  height: 56px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-size: 1.4rem;
  margin-bottom: 20px;
}

.policy-card h3 {
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 12px;
  color: var(--text);
}

.policy-card p {
  font-size: 0.92rem;
  color: var(--text-light);
  line-height: 1.7;
}

/* ===== Achievements Section ===== */
#achievements {
  background: var(--bg);
}

.stats-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-bottom: 48px;
}

.stat-card {
  text-align: center;
  padding: 32px 20px;
  background: linear-gradient(135deg, var(--primary), var(--primary-light));
  border-radius: var(--radius);
  color: #fff;
}

.stat-card .number {
  font-size: 2.5rem;
  font-weight: 900;
  line-height: 1.2;
  margin-bottom: 4px;
}

.stat-card .unit {
  font-size: 1rem;
  opacity: 0.8;
}

.stat-card .label {
  font-size: 0.9rem;
  opacity: 0.85;
  margin-top: 4px;
}

.achievement-list {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 16px;
}

.achievement-item {
  display: flex;
  align-items: flex-start;
  gap: 14px;
  padding: 20px 24px;
  background: var(--bg-light);
  border-radius: var(--radius);
  transition: var(--transition);
}

.achievement-item:hover {
  background: #e0e7ff;
}

.achievement-item i {
  color: var(--primary);
  font-size: 1.1rem;
  margin-top: 3px;
  flex-shrink: 0;
}

.achievement-item p {
  font-size: 0.95rem;
  color: var(--text);
  font-weight: 500;
}

/* ===== News Section ===== */
#news {
  background: var(--bg-light);
}

.news-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.news-card {
  background: var(--bg);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: var(--transition);
}

.news-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
}

.news-thumb {
  width: 100%;
  height: 200px;
  background: linear-gradient(135deg, #e0e7ff, #c7d2fe);
  overflow: hidden;
}

.news-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.news-body {
  padding: 24px;
}

.news-body .date {
  font-size: 0.8rem;
  color: var(--text-light);
  margin-bottom: 8px;
}

.news-body h3 {
  font-size: 1.05rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.5;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-body p {
  font-size: 0.88rem;
  color: var(--text-light);
  line-height: 1.7;
  margin-bottom: 16px;
  display: -webkit-box;
  -webkit-line-clamp: 3;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.news-body .read-more {
  color: var(--primary);
  font-weight: 600;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
  transition: var(--transition);
}

.news-body .read-more:hover {
  gap: 8px;
}

/* ===== Support Section ===== */
#support {
  background: var(--bg);
}

.support-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
}

.support-info h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary);
}

.support-info p {
  color: var(--text-light);
  margin-bottom: 24px;
  line-height: 1.8;
}

.account-box {
  background: var(--bg-light);
  padding: 24px;
  border-radius: var(--radius);
  margin-bottom: 24px;
}

.account-box .label {
  font-size: 0.85rem;
  color: var(--text-light);
  margin-bottom: 6px;
}

.account-box .value {
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--text);
}

.volunteer-form h3 {
  font-size: 1.4rem;
  font-weight: 700;
  margin-bottom: 16px;
  color: var(--primary);
}

.form-group {
  margin-bottom: 16px;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 6px;
  color: var(--text);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e5e7eb;
  border-radius: 8px;
  font-size: 0.95rem;
  font-family: inherit;
  transition: var(--transition);
  background: var(--bg);
  color: var(--text);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--primary);
  box-shadow: 0 0 0 3px rgba(26, 86, 219, 0.1);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.btn-submit {
  width: 100%;
  padding: 14px;
  background: var(--primary);
  color: #fff;
  font-size: 1rem;
  border-radius: 8px;
}

.btn-submit:hover {
  background: var(--primary-dark);
}

/* ===== Footer ===== */
.footer {
  background: var(--bg-dark);
  color: #9ca3af;
  padding: 48px 0 24px;
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 40px;
}

.footer h4 {
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  margin-bottom: 16px;
}

.footer-info p {
  font-size: 0.9rem;
  line-height: 1.8;
}

.footer-info .logo-text {
  color: #fff;
  font-size: 1.2rem;
  font-weight: 800;
  margin-bottom: 12px;
}

.footer-links a {
  display: block;
  font-size: 0.9rem;
  padding: 4px 0;
  color: #9ca3af;
  transition: var(--transition);
}

.footer-links a:hover {
  color: #fff;
}

.footer-social {
  display: flex;
  gap: 12px;
  margin-top: 8px;
}

.footer-social a {
  width: 40px;
  height: 40px;
  background: rgba(255, 255, 255, 0.1);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #9ca3af;
  transition: var(--transition);
  font-size: 1.1rem;
}

.footer-social a:hover {
  background: var(--primary);
  color: #fff;
}

.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  padding-top: 24px;
  text-align: center;
}

.footer-bottom p {
  font-size: 0.8rem;
  line-height: 1.8;
}

.footer-bottom .legal {
  color: #6b7280;
  margin-top: 8px;
}

/* ===== Mobile Responsive ===== */
@media (max-width: 1024px) {
  .policy-grid,
  .news-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 70px;
    left: 0;
    width: 100%;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(10px);
    flex-direction: column;
    padding: 24px 20px;
    gap: 20px;
    transform: translateY(-120%);
    transition: var(--transition);
    box-shadow: var(--shadow);
  }

  .nav-menu.open {
    transform: translateY(0);
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero h1 .name {
    font-size: 3rem;
  }

  .hero .slogan {
    font-size: 1.15rem;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .profile-image {
    max-width: 300px;
    margin: 0 auto;
    position: static;
  }

  .policy-grid,
  .news-grid,
  .achievement-list {
    grid-template-columns: 1fr;
  }

  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .support-grid {
    grid-template-columns: 1fr;
  }

  .footer-grid {
    grid-template-columns: 1fr;
    gap: 24px;
  }

  section {
    padding: 60px 0;
  }

  .section-title {
    font-size: 1.6rem;
  }
}

@media (max-width: 480px) {
  .hero h1 {
    font-size: 1.8rem;
  }

  .hero h1 .name {
    font-size: 2.5rem;
  }

  .stats-grid {
    grid-template-columns: 1fr 1fr;
    gap: 12px;
  }

  .stat-card {
    padding: 20px 12px;
  }

  .stat-card .number {
    font-size: 2rem;
  }

  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn {
    width: 100%;
    justify-content: center;
  }
}