/* =============================================
   HANZOOM - pages/solution.css
   솔루션 섹션 스타일
   ============================================= */

/* ─── 기술소개 ─── */
.tech-intro-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}
.tech-intro-text { display: flex; flex-direction: column; gap: 1rem; }
.tech-intro-text p { font-size: 1rem; color: var(--color-text-muted); line-height: 1.8; }
.tech-intro-text strong { color: var(--color-primary); }
.tech-intro-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.tech-intro-badges span {
  padding: 0.375rem 0.875rem;
  background: #EFF6FF;
  color: var(--color-primary);
  border-radius: var(--radius-full);
  font-size: 0.8125rem;
  font-weight: 600;
}

/* OTP 흐름 다이어그램 */
.otp-flow-diagram {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0;
  padding: 2rem;
  background: var(--color-bg-section);
  border-radius: var(--radius-xl);
}
.otp-flow-node {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  flex-shrink: 0;
}
.otp-flow-node__icon {
  width: 64px; height: 64px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
}
.otp-flow-node--iot .otp-flow-node__icon  { background: #EFF6FF; }
.otp-flow-node--server .otp-flow-node__icon { background: #F0FDF4; }
.otp-flow-node--app .otp-flow-node__icon   { background: #FFF7ED; }
.otp-flow-node__label {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-text);
  text-align: center;
  line-height: 1.4;
}
.otp-flow-node__label small { font-weight: 400; color: var(--color-text-muted); }
.otp-flow-arrows {
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  padding: 0 0.75rem;
  min-width: 100px;
}
.otp-flow-arrow {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  font-size: 0.625rem;
  color: var(--color-text-muted);
  font-weight: 600;
}
.arrow-line {
  height: 2px;
  width: 100%;
  background: var(--color-primary);
  position: relative;
}
.arrow-right::after {
  content: '';
  position: absolute;
  right: -1px; top: -4px;
  border: 5px solid transparent;
  border-left-color: var(--color-primary);
}
.arrow-left::before {
  content: '';
  position: absolute;
  left: -1px; top: -4px;
  border: 5px solid transparent;
  border-right-color: var(--color-teal);
}
.otp-flow-arrow--left .arrow-line { background: var(--color-teal); }

/* 비교표 */
.tech-compare {
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  gap: 2rem;
  align-items: stretch;
}
.tech-compare__col {
  border-radius: var(--radius-xl);
  overflow: hidden;
}
.tech-compare__header {
  padding: 1rem 1.5rem;
  font-size: 1rem;
  font-weight: 700;
  text-align: center;
}
.tech-compare__col--old .tech-compare__header  { background: #FEE2E2; color: #991B1B; }
.tech-compare__col--new .tech-compare__header  { background: var(--color-primary); color: #fff; }
.tech-compare__col ul { padding: 1.25rem 1.5rem; display: flex; flex-direction: column; gap: 0.75rem; }
.tech-compare__col--old ul { background: #FFF5F5; }
.tech-compare__col--new ul { background: #EFF6FF; }
.tech-compare__col ul li { font-size: 0.9375rem; line-height: 1.5; }
.tech-compare__vs {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  font-weight: 800;
  color: var(--color-text-muted);
}

/* 통신 기술 */
.tech-comm-grid {
  display: grid;
  grid-template-columns: repeat(5, 1fr);
  gap: 1rem;
}
.tech-comm-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.5rem 1rem;
  text-align: center;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
  transition: var(--transition);
}
.tech-comm-card:hover { border-color: var(--color-primary); box-shadow: var(--shadow-md); }
.tech-comm-card__icon { font-size: 2rem; }
.tech-comm-card strong { font-size: 1rem; font-weight: 700; color: var(--color-primary); }
.tech-comm-card p { font-size: 0.8125rem; color: var(--color-text-muted); line-height: 1.5; }

/* 브랜드 */
.brand-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}
.brand-card {
  background: #fff;
  border-radius: var(--radius-xl);
  padding: 2.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  transition: var(--transition);
}
.brand-card:hover { box-shadow: var(--shadow-lg); border-color: var(--color-primary); }
.brand-card__name {
  font-size: 1.75rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  color: var(--color-primary);
  margin-bottom: 0.25rem;
}
.brand-card__sub {
  font-size: 0.8125rem;
  font-weight: 600;
  color: var(--color-teal);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 1rem;
}
.brand-card p { font-size: 0.9375rem; color: var(--color-text-muted); line-height: 1.8; }

/* ─── 특허 ─── */
.patent-stat-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  text-align: center;
}
.patent-stat-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 2rem 1rem;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
  align-items: center;
}
.patent-stat-num {
  font-size: 2.5rem;
  font-weight: 800;
  color: var(--color-primary);
  line-height: 1;
}
.patent-stat-label {
  font-size: 0.875rem;
  color: var(--color-text-muted);
}
.patent-list { display: flex; flex-direction: column; gap: 1rem; }
.patent-item {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: flex-start;
  gap: 1rem;
}
.patent-item--key { border-left: 4px solid var(--color-primary); }
.patent-item__badge {
  padding: 0.25rem 0.75rem;
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  white-space: nowrap;
  flex-shrink: 0;
  align-self: center;
}
.patent-item__info { flex: 1; }
.patent-item__num {
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-teal);
  margin-bottom: 0.25rem;
}
.patent-item__name {
  font-size: 1rem;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 0.25rem;
}
.patent-item__desc { font-size: 0.875rem; color: var(--color-text-muted); }
.patent-award-banner {
  background: linear-gradient(135deg, var(--color-navy), var(--color-primary-dk));
  border-radius: var(--radius-xl);
  padding: 2rem 2.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.patent-award-banner__icon { font-size: 2.5rem; flex-shrink: 0; }
.patent-award-banner__text { flex: 1; }
.patent-award-banner__text h3 { font-size: 1.25rem; font-weight: 700; color: #fff; margin-bottom: 0.25rem; }
.patent-award-banner__text p { font-size: 0.9375rem; color: rgba(255,255,255,0.7); }

/* ─── 인증 ─── */
.cert-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1rem;
}
.cert-card {
  border-radius: var(--radius-lg);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.375rem;
  border: 1px solid var(--color-border);
}
.cert-card--primary { background: #fff; border-left: 4px solid var(--color-primary); }
.cert-card--blue    { background: #fff; border-left: 4px solid var(--color-teal); }
.cert-card__org  { font-size: 0.75rem; color: var(--color-text-muted); }
.cert-card__type { font-size: 0.8125rem; font-weight: 700; color: var(--color-primary); }
.cert-card--blue .cert-card__type { color: var(--color-teal); }
.cert-card__name { font-size: 0.9375rem; font-weight: 700; color: var(--color-text); }
.cert-card__num  { font-size: 0.75rem; color: var(--color-text-muted); }

/* 수상 */
.award-list { display: flex; flex-direction: column; gap: 0.75rem; }
.award-item {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.25rem 1.5rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  display: flex;
  align-items: center;
  gap: 1.25rem;
}
.award-item--minister { border-left: 4px solid #EAB308; }
.award-item__level {
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  font-size: 0.75rem;
  font-weight: 700;
  white-space: nowrap;
  background: #FEF9C3;
  color: #713F12;
  flex-shrink: 0;
}
.award-item--minister .award-item__level { background: #EAB308; color: #fff; }
.award-item__info { display: flex; flex-direction: column; gap: 0.2rem; }
.award-item__info strong { font-size: 0.9375rem; font-weight: 700; color: var(--color-text); }
.award-item__info span  { font-size: 0.8125rem; color: var(--color-text-muted); }

/* R&D */
.rd-grid { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1rem; }
.rd-card {
  background: #fff;
  border-radius: var(--radius-lg);
  padding: 1.25rem;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--color-border);
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.rd-card__type {
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-teal);
}
.rd-card__name { font-size: 0.9375rem; font-weight: 700; color: var(--color-text); flex: 1; }
.rd-card__meta {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  flex-wrap: wrap;
}
.rd-card__result {
  padding: 0.2rem 0.625rem;
  border-radius: var(--radius-full);
  font-size: 0.6875rem;
  font-weight: 700;
  background: var(--color-bg-section);
  color: var(--color-text-muted);
}
.rd-card__result--success { background: #ECFDF5; color: #065F46; }

/* ─── Responsive ─── */
@media (max-width: 1024px) {
  .tech-intro-layout { grid-template-columns: 1fr; }
  .tech-comm-grid { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .rd-grid { grid-template-columns: repeat(2, 1fr); }
  .patent-stat-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .tech-compare { grid-template-columns: 1fr; }
  .tech-compare__vs { display: none; }
  .otp-flow-diagram { flex-direction: column; }
  .otp-flow-arrows { flex-direction: row; }
  .tech-comm-grid { grid-template-columns: repeat(2, 1fr); }
  .brand-grid { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .rd-grid { grid-template-columns: 1fr; }
}