/* style.css */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "맑은 고딕", sans-serif;
  line-height: 1.6;
  color: #222;
  background-color: #f8f5ef;
}

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

header {
  background-color: #ffffffcc;
  backdrop-filter: blur(8px);
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid #eee;
}

.nav-container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 12px 20px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  font-weight: 700;
  font-size: 20px;
}

nav ul {
  list-style: none;
  display: flex;
  gap: 20px;
  font-size: 14px;
}

nav a:hover {
  text-decoration: underline;
}

/* Hero 영역 */

.hero {
    height: 90vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    color: #fff;

    /* 배경 이미지 + 어두운 오버레이 */
    background-image:
        linear-gradient(to bottom, rgba(0,0,0,0.55), rgba(0,0,0,0.55)),
        url("a1.png");

    background-size: cover;        /* 화면 꽉 채우기 */
    background-position: center;   /* 중심 정렬 */
    background-repeat: no-repeat;
}

.hero h1 {
    font-size: 3rem;
    font-weight: 800;
    margin-bottom: 18px;
}

.hero p {
    font-size: 1.2rem;
}

/* 모바일 최적화 */
@media (max-width: 768px) {
    .hero {
        height: 70vh;
        background-position: center top;
    }

    .hero h1 {
        font-size: 2rem;
    }

    .hero p {
        font-size: 1rem;
    }
}

/* 공통 섹션 */

section {
  padding: 60px 20px;
}

.section-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.section-title {
  font-size: 28px;
  margin-bottom: 8px;
  text-align: center;
}

.section-subtitle {
  text-align: center;
  margin-bottom: 40px;
  color: #555;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1.2fr 1fr;
  gap: 40px;
  align-items: start;
}

.grid-2.reverse {
  grid-template-columns: 1fr 1.2fr;
}

.card {
  background-color: #fff;
  border-radius: 12px;
  padding: 24px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.04);
}

.card h3 {
  margin-bottom: 10px;
  font-size: 20px;
}

.card p {
  font-size: 14px;
  color: #444;
}

.card ul {
  margin-top: 10px;
  padding-left: 18px;
  font-size: 14px;
}

.badge-row {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-top: 24px;
}

.badge {
  padding: 8px 16px;
  border-radius: 999px;
  border: 1px solid #ddd;
  background: #fff;
  font-size: 13px;
}

/* 프로세스 */

.process-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.process-step {
  text-align: center;
  background-color: #fff;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 8px 20px rgba(0,0,0,0.04);
}

.process-step-number {
  font-size: 26px;
  font-weight: 700;
  margin-bottom: 10px;
}

.process-step-title {
  font-weight: 600;
  margin-bottom: 8px;
}

/* Why KAL */

.why-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 30px;
}

.why-item {
  text-align: center;
  font-size: 15px;
}

.why-item h3 {
  margin-bottom: 8px;
}

/* 문의 / FAQ */

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.faq-item {
  background: #fff;
  border-radius: 10px;
  padding: 16px 20px;
  box-shadow: 0 6px 16px rgba(0,0,0,0.03);
}

.faq-question {
  font-weight: 600;
  margin-bottom: 6px;
}

/* 푸터 */

footer {
  background: #111;
  color: #ccc;
  padding: 30px 20px 40px;
  font-size: 13px;
}

.footer-inner {
  max-width: 1100px;
  margin: 0 auto;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 10px;
}

.footer-bottom {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 8px;
  font-size: 12px;
  color: #888;
}

.footer-links a {
  margin-left: 10px;
}

/* 반응형 */

@media (max-width: 900px) {
  .grid-2,
  .grid-2.reverse,
  .process-grid,
  .why-grid,
  .contact-grid {
    grid-template-columns: 1fr;
  }

  .hero-title {
    font-size: 30px;
  }

  .hero-subtitle {
    font-size: 15px;
  }
}