/* ============================================================
   components.css  —  재사용 UI 컴포넌트
   ============================================================ */

/* ── 버튼 ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-6);
  height: 44px;
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  font-weight: var(--font-semi);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  border: 2px solid transparent;
  line-height: 1;
  letter-spacing: 0.01em;
}

.btn:active { transform: scale(0.98); }

/* Primary */
.btn--primary {
  background: var(--color-primary);
  color: white;
  border-color: var(--color-primary);
}
.btn--primary:hover {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  box-shadow: 0 4px 16px rgba(0, 104, 200, 0.3);
}

/* Secondary (outline) */
.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--secondary:hover {
  background: var(--color-primary-light);
}

/* Ghost */
.btn--ghost {
  background: transparent;
  color: var(--color-text-secondary);
  border-color: var(--color-border);
}
.btn--ghost:hover {
  background: var(--color-bg);
  color: var(--color-text-primary);
  border-color: var(--color-text-secondary);
}

/* White (on dark/primary bg) */
.btn--white {
  background: white;
  color: var(--color-primary);
  border-color: white;
}
.btn--white:hover {
  background: rgba(255,255,255,0.9);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
}

/* White outline */
.btn--white-outline {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.5);
}
.btn--white-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: white;
}

/* 크기 변형 */
.btn--sm {
  height: 34px;
  padding: 0 var(--space-4);
  font-size: var(--text-xs);
}
.btn--lg {
  height: 52px;
  padding: 0 var(--space-8);
  font-size: var(--text-base);
}

/* ── 배지 / 태그 ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 3px 10px;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: var(--font-semi);
  line-height: 1.4;
}

.badge--primary  { background: var(--color-primary-light); color: var(--color-primary); }
.badge--success  { background: #E6F8F2; color: var(--color-success); }
.badge--warning  { background: #FEF6E7; color: #B07D00; }
.badge--danger   { background: #FEEAEA; color: var(--color-danger); }
.badge--neutral  { background: var(--color-bg); color: var(--color-text-secondary); border: 1px solid var(--color-border); }

/* ── 카드 ── */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  transition: all var(--transition-normal);
}

.card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.card--flat:hover {
  transform: none;
  box-shadow: none;
}

.card--primary {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.card__icon {
  width: 52px;
  height: 52px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 24px;
  margin-bottom: var(--space-4);
  flex-shrink: 0;
}

.card--primary .card__icon {
  background: rgba(255,255,255,0.2);
}

.card__label {
  font-size: var(--text-xs);
  font-weight: var(--font-semi);
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.card--primary .card__label { color: rgba(255,255,255,0.75); }

.card__title {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
  margin-bottom: var(--space-2);
  line-height: 1.3;
}

.card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
}

.card--primary .card__desc { color: rgba(255,255,255,0.75); }

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  font-size: var(--text-sm);
  font-weight: var(--font-semi);
  color: var(--color-primary);
  text-decoration: none;
  margin-top: var(--space-4);
  transition: gap var(--transition-fast);
}

.card__link:hover { gap: var(--space-2); }
.card--primary .card__link { color: rgba(255,255,255,0.9); }

/* 서비스 카드 (메인 페이지) */
.service-card {
  display: flex;
  flex-direction: column;
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  text-decoration: none;
  color: inherit;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform var(--transition-normal);
  transform-origin: left;
}

.service-card:hover {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md);
  transform: translateY(-3px);
}

.service-card:hover::before { transform: scaleX(1); }

.service-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-4);
}

.service-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.service-card__arrow {
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: 12px;
  transition: all var(--transition-fast);
}

.service-card:hover .service-card__arrow {
  background: var(--color-primary);
  border-color: var(--color-primary);
  color: white;
}

.service-card__name {
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  letter-spacing: -0.02em;
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.service-card__sub {
  font-size: var(--text-xs);
  font-weight: var(--font-medium);
  color: var(--color-primary);
  margin-bottom: var(--space-2);
}

.service-card__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
  flex: 1;
}

/* ── 피처 리스트 아이템 ── */
.feature-item {
  display: flex;
  gap: var(--space-4);
  align-items: flex-start;
  padding: var(--space-5);
  border-radius: var(--radius-lg);
  transition: background var(--transition-fast);
}

.feature-item:hover { background: var(--color-bg); }

.feature-item__icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  flex-shrink: 0;
}

.feature-item__title {
  font-size: var(--text-base);
  font-weight: var(--font-semi);
  color: var(--color-text-primary);
  margin-bottom: var(--space-1);
}

.feature-item__desc {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
}

/* ── 체크리스트 ── */
.checklist {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.checklist__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
}

.checklist__check {
  width: 20px;
  height: 20px;
  border-radius: 50%;
  background: var(--color-primary-light);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-primary);
  font-size: 11px;
  font-weight: var(--font-bold);
}

/* ── CTA 배너 ── */
.cta-banner {
  background: var(--color-primary);
  border-radius: var(--radius-2xl);
  padding: var(--space-12);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-8);
  position: relative;
  overflow: hidden;
}

.cta-banner::after {
  content: '';
  position: absolute;
  right: -80px;
  top: -80px;
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: rgba(255,255,255,0.06);
}

.cta-banner__title {
  font-size: var(--text-2xl);
  font-weight: var(--font-bold);
  color: white;
  margin-bottom: var(--space-2);
  letter-spacing: -0.02em;
}

.cta-banner__desc {
  font-size: var(--text-base);
  color: rgba(255,255,255,0.75);
}

.cta-banner__actions {
  display: flex;
  gap: var(--space-3);
  flex-shrink: 0;
}

/* ── 탭 ── */
.tabs {
  display: flex;
  gap: var(--space-1);
  border-bottom: 1px solid var(--color-border);
  margin-bottom: var(--space-8);
}

.tab {
  padding: var(--space-3) var(--space-5);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-secondary);
  cursor: pointer;
  border-bottom: 2px solid transparent;
  margin-bottom: -1px;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.tab:hover { color: var(--color-primary); }

.tab.is-active {
  color: var(--color-primary);
  border-bottom-color: var(--color-primary);
  font-weight: var(--font-semi);
}

/* ── 아코디언 (FAQ) ── */
.accordion { border: 1px solid var(--color-border); border-radius: var(--radius-xl); overflow: hidden; }

.accordion__item { border-bottom: 1px solid var(--color-border); }
.accordion__item:last-child { border-bottom: none; }

.accordion__trigger {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  text-align: left;
  background: transparent;
  cursor: pointer;
  transition: background var(--transition-fast);
  gap: var(--space-4);
}

.accordion__trigger:hover { background: var(--color-bg); }

.accordion__icon {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--transition-fast);
}

.accordion__item.is-open .accordion__icon { transform: rotate(45deg); }

.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow);
}

.accordion__item.is-open .accordion__body { max-height: 500px; }

.accordion__content {
  padding: 0 var(--space-6) var(--space-5);
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  line-height: var(--leading-loose);
}

/* ── 폼 요소 ── */
.form-group { margin-bottom: var(--space-5); }

.form-label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-text-primary);
  margin-bottom: var(--space-2);
}

.form-input {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  color: var(--color-text-primary);
  background: var(--color-white);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  outline: none;
}

.form-input:focus {
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0, 104, 200, 0.1);
}

.form-textarea {
  height: auto;
  min-height: 120px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
  line-height: var(--leading-loose);
}

/* ── 로딩 애니메이션 ── */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(20px); }
  to   { opacity: 1; transform: translateY(0); }
}

.animate-in {
  animation: fadeInUp 0.5s ease forwards;
}

.animate-in--delay-1 { animation-delay: 0.1s; }
.animate-in--delay-2 { animation-delay: 0.2s; }
.animate-in--delay-3 { animation-delay: 0.3s; }