/* ===== Google Fonts ===== */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+KR:wght@300;400;500;700&family=Noto+Serif+KR:wght@400;700&display=swap');

/* ===== CSS Variables ===== */
:root {
  /* Primary */
  --color-primary: #1B3A6B;
  --color-primary-light: #2E5FA3;

  /* Accent */
  --color-accent: #C9922E;

  /* Neutral */
  --color-bg: #F9F7F4;
  --color-surface: #FFFFFF;
  --color-border: #E0DADA;

  /* Text */
  --color-text-primary: #222222;
  --color-text-secondary: #666666;
  --color-text-muted: #999999;

  /* Fonts */
  --font-base: 'Noto Sans KR', sans-serif;
  --font-heading: 'Noto Serif KR', serif;

  /* Font Sizes */
  --text-xs: 0.75rem;
  --text-sm: 0.875rem;
  --text-base: 1rem;
  --text-lg: 1.125rem;
  --text-xl: 1.25rem;
  --text-2xl: 1.5rem;
  --text-3xl: 1.875rem;
  --text-4xl: 2.25rem;

  /* Spacing (8px base) */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-6: 1.5rem;
  --space-8: 2rem;
  --space-12: 3rem;
  --space-16: 4rem;
  --space-20: 5rem;

  /* Misc */
  --radius-sm: 4px;
  --radius-md: 8px;
  --shadow-card: 0 2px 12px rgba(0, 0, 0, 0.08);
  --transition: 0.3s ease;
}

/* ===== Base ===== */
body {
  font-family: var(--font-base);
  font-size: var(--text-base);
  color: var(--color-text-primary);
  background-color: var(--color-bg);
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--space-4);
}

/* ===== Header ===== */
.header {
  background-color: var(--color-primary);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__logo a {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: #fff;
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
}

.header__logo img {
  height: 40px;
  width: auto;
}

/* Desktop Nav */
.nav__list {
  display: flex;
  gap: var(--space-8);
}

.nav__link {
  color: rgba(255, 255, 255, 0.85);
  font-size: var(--text-sm);
  font-weight: 500;
  padding: var(--space-2) 0;
  position: relative;
  transition: color var(--transition);
}

.nav__link:hover,
.nav__link.active {
  color: #fff;
}

.nav__link.active::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 2px;
  background-color: var(--color-accent);
}

.nav__link--icon {
  display: inline-flex;
  align-items: center;
}

.nav__link--icon svg {
  vertical-align: middle;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  padding: var(--space-2);
}

.hamburger span {
  display: block;
  width: 24px;
  height: 2px;
  background-color: #fff;
  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);
}

/* Mobile Nav */
@media (max-width: 767px) {
  .hamburger {
    display: flex;
  }

  .nav {
    position: fixed;
    top: 72px;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--color-primary);
    transform: translateX(100%);
    transition: transform var(--transition);
    z-index: 999;
  }

  .nav.open {
    transform: translateX(0);
  }

  .nav__list {
    flex-direction: column;
    align-items: center;
    gap: 0;
    padding-top: var(--space-12);
  }

  .nav__link {
    display: block;
    width: 100%;
    text-align: center;
    font-size: var(--text-xl);
    padding: var(--space-8) var(--space-4);
    min-height: 60px;
  }
}

/* ===== Footer ===== */
.footer {
  background-color: var(--color-primary);
  color: rgba(255, 255, 255, 0.8);
  padding: var(--space-16) 0 var(--space-8);
  margin-top: var(--space-20);
}

.footer__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
}

.footer__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  color: #fff;
  margin-bottom: var(--space-4);
}

.footer__logo {
  height: 32px;
  width: auto;
}

.footer__info p {
  font-size: var(--text-sm);
  line-height: 2;
}

.footer__worship p {
  font-size: var(--text-sm);
  line-height: 2;
}

.footer__bottom {
  margin-top: var(--space-12);
  padding-top: var(--space-6);
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--space-4);
}

.footer__copyright {
  font-size: var(--text-xs);
  color: rgba(255, 255, 255, 0.5);
}

.footer__sns {
  display: flex;
  gap: var(--space-4);
}

.footer__sns a {
  color: rgba(255, 255, 255, 0.7);
  font-size: var(--text-sm);
  transition: color var(--transition);
}

.footer__sns a:hover {
  color: var(--color-accent);
}

@media (max-width: 767px) {
  .footer__inner {
    grid-template-columns: 1fr;
    gap: var(--space-6);
  }

  .footer__bottom {
    flex-direction: column;
    text-align: center;
  }
}

/* ===== Section Title ===== */
.section-title {
  text-align: center;
  margin-bottom: var(--space-12);
}

.section-title h2 {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  color: var(--color-text-primary);
  margin-bottom: var(--space-4);
}

.section-title::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  background-color: var(--color-accent);
  margin: 0 auto;
}

@media (max-width: 767px) {
  .section-title h2 {
    font-size: var(--text-2xl);
  }
}

/* ===== Page Banner ===== */
.page-banner {
  position: relative;
  background-color: var(--color-primary);
  background-size: cover;
  background-position: center;
  color: #fff;
  padding: var(--space-20) 0;
  text-align: center;
}

.page-banner::before {
  content: '';
  position: absolute;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.45);
  z-index: 1;
}

.page-banner .container {
  position: relative;
  z-index: 2;
}

.page-banner h1 {
  font-family: var(--font-heading);
  font-size: var(--text-4xl);
  font-weight: 700;
}

.page-banner p {
  margin-top: var(--space-3);
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.8);
}

@media (max-width: 767px) {
  .page-banner {
    padding: var(--space-16) 0;
  }

  .page-banner h1 {
    font-size: var(--text-3xl);
  }
}

/* ===== Buttons ===== */
.btn {
  display: inline-block;
  padding: 12px 28px;
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  font-weight: 500;
  text-align: center;
  transition: var(--transition);
  cursor: pointer;
}

.btn--primary {
  background-color: var(--color-primary);
  color: #fff;
}

.btn--primary:hover {
  background-color: var(--color-primary-light);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-primary);
  border: 1px solid var(--color-primary);
}

.btn--secondary:hover {
  background-color: var(--color-primary);
  color: #fff;
}

.btn--accent {
  background-color: var(--color-accent);
  color: #fff;
}

.btn--accent:hover {
  opacity: 0.85;
}

/* ===== Card ===== */
.card {
  background-color: var(--color-surface);
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-card);
  padding: var(--space-6);
}

/* ===== Utility ===== */
.section {
  padding: var(--space-20) 0;
}

.text-center {
  text-align: center;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}