/* ============================================================
   SHINWEON ENGINEERING — Products Page CSS
   ============================================================ */

/* ── Body Override ──────────────────────────────── */
.products-body { background: #f7f4ef; }

/* ── Navbar Active ──────────────────────────────── */
.nav-link-active {
  color: var(--gold) !important;
}
.nav-link-active::after {
  width: 100% !important;
  background: var(--gold);
}

/* ── Page Hero ──────────────────────────────────── */
.page-hero {
  position: relative;
  height: 320px;
  background: linear-gradient(135deg, var(--navy-deep) 0%, var(--navy-light) 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  margin-top: 80px;
}
.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.07) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.07) 1px, transparent 1px);
  background-size: 60px 60px;
}
.page-hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(5,14,31,0.6), rgba(201,168,76,0.08));
}
.page-hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
}
.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  font-size: 0.75rem;
  color: rgba(255,255,255,0.55);
  letter-spacing: 1px;
  margin-bottom: 16px;
}
.breadcrumb a { color: var(--gold); transition: opacity 0.3s; }
.breadcrumb a:hover { opacity: 0.7; }
.breadcrumb i { font-size: 0.6rem; }
.page-hero-content h1 {
  font-family: var(--font-serif);
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 400;
  color: var(--white);
  letter-spacing: 6px;
  margin-bottom: 12px;
}
.page-hero-content p {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  letter-spacing: 2px;
}

/* ── 탭 네비게이션 ──────────────────────────────── */
.product-tabs-wrap {
  background: var(--white);
  border-bottom: 1px solid rgba(5,14,31,0.08);
  position: sticky;
  top: 80px;
  z-index: 100;
  box-shadow: 0 2px 20px rgba(0,0,0,0.06);
}
.product-tabs {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 48px;
  display: flex;
  gap: 0;
}
.ptab {
  padding: 18px 32px;
  font-family: var(--font-sans);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gray-300);
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  cursor: pointer;
  transition: all 0.3s;
}
.ptab:hover { color: var(--navy-deep); }
.ptab.active {
  color: var(--gold);
  border-bottom-color: var(--gold);
}

/* ── Products Section ───────────────────────────── */
.products-section {
  padding: 80px 0 100px;
  background: #f7f4ef;
}
.products-section .section-title { color: var(--navy-deep); }

/* ── Product Grid ───────────────────────────────── */
.product-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2px;
  background: rgba(5,14,31,0.05);
  border: 1px solid rgba(5,14,31,0.06);
}

/* ── Product Card ───────────────────────────────── */
.product-card {
  background: var(--white);
  transition: box-shadow 0.3s;
}
.product-card:hover {
  box-shadow: 0 8px 40px rgba(5,14,31,0.1);
  z-index: 2;
  position: relative;
}
.product-card-inner {
  display: grid;
  grid-template-columns: 420px 1fr;
  min-height: 320px;
}

/* Product Image */
.product-img-wrap {
  position: relative;
  overflow: hidden;
  background: var(--navy-deep);
}
.product-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.7s ease;
  opacity: 0.9;
}
.product-card:hover .product-img-wrap img {
  transform: scale(1.05);
}
.product-badge {
  position: absolute;
  top: 20px; left: 20px;
  background: var(--gold);
  color: var(--navy-deep);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 5px 12px;
}
.product-maker-badge {
  position: absolute;
  bottom: 20px; left: 20px;
  background: rgba(5,14,31,0.82);
  backdrop-filter: blur(6px);
  border: 1px solid rgba(201,168,76,0.3);
  padding: 6px 14px;
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--gold-light);
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 1px;
}
.product-maker-badge img {
  width: 16px; height: 16px;
  object-fit: contain;
  opacity: 0.8;
}

/* Product Info */
.product-info {
  padding: 40px 48px;
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 14px;
  border-left: 1px solid rgba(5,14,31,0.06);
}
.product-category-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--gold);
}
.product-name {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--navy-deep);
  letter-spacing: 2px;
  line-height: 1.2;
  margin: 0;
}
.product-maker {
  font-size: 0.78rem;
  color: var(--gray-300);
  letter-spacing: 1px;
  padding-left: 10px;
  border-left: 2px solid var(--gold);
  margin: 0;
}
.product-desc {
  font-size: 0.88rem;
  color: var(--gray-500);
  line-height: 1.85;
  margin: 0;
}
.product-features {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.feat-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.78rem;
  color: var(--gray-500);
}
.feat-item i {
  color: var(--gold);
  font-size: 0.7rem;
  flex-shrink: 0;
}
.product-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 8px;
  border-top: 1px solid rgba(5,14,31,0.06);
}
.btn-prod-detail {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  background: var(--navy-deep);
  color: var(--white);
  font-family: var(--font-sans);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  border: none;
  cursor: pointer;
  transition: all 0.3s;
}
.btn-prod-detail:hover {
  background: var(--navy-light);
  box-shadow: 0 4px 16px rgba(5,14,31,0.2);
}
.btn-prod-inquiry {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 11px 22px;
  background: transparent;
  color: var(--gold);
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  border: 1px solid var(--gold);
  cursor: pointer;
  transition: all 0.3s;
}
.btn-prod-inquiry:hover {
  background: var(--gold);
  color: var(--navy-deep);
}

/* ── Patent Section ─────────────────────────────── */
.patent-section {
  position: relative;
  padding: 100px 0;
  background: var(--navy-deep);
  overflow: hidden;
}
.patent-bg-deco {
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(201,168,76,0.06) 0%, transparent 50%),
    radial-gradient(circle at 80% 50%, rgba(201,168,76,0.04) 0%, transparent 50%);
}
.patent-bg-deco::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(201,168,76,0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(201,168,76,0.04) 1px, transparent 1px);
  background-size: 80px 80px;
}
.patent-label {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 20px;
  border: 1px solid rgba(201,168,76,0.4);
  color: var(--gold);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 4px;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.patent-section .section-title.light em {
  font-style: italic;
  color: var(--gold);
}

/* Patent Card */
.patent-card-wrap { position: relative; z-index: 2; }
.patent-card {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 0;
  border: 1px solid rgba(201,168,76,0.15);
  overflow: hidden;
}
.patent-card-left { position: relative; }
.patent-img-wrap {
  position: relative;
  height: 100%;
  min-height: 420px;
  overflow: hidden;
}
.patent-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(0.7) brightness(0.7);
  transition: transform 0.7s ease;
}
.patent-card:hover .patent-img-wrap img { transform: scale(1.04); }
.patent-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to bottom, transparent 50%, rgba(5,14,31,0.7));
  display: flex;
  align-items: flex-end;
  padding: 28px;
}
.patent-stamp {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px 20px;
  border: 2px solid var(--gold);
  color: var(--gold);
  text-align: center;
}
.patent-stamp i { font-size: 1.6rem; }
.patent-stamp span {
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 3px;
}

/* Patent Card Right */
.patent-card-right {
  background: rgba(255,255,255,0.03);
  padding: 52px 56px;
  display: flex;
  flex-direction: column;
  gap: 20px;
  border-left: 1px solid rgba(201,168,76,0.12);
}
.patent-tag-wrap {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}
.patent-tag {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 14px;
  background: linear-gradient(135deg, var(--gold), var(--gold-light));
  color: var(--navy-deep);
  font-size: 0.65rem;
  font-weight: 700;
  letter-spacing: 2px;
}
.patent-tag-company {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.5);
  letter-spacing: 1px;
}
.patent-title {
  font-family: var(--font-serif);
  font-size: 2.2rem;
  font-weight: 400;
  color: var(--white);
  letter-spacing: 3px;
  margin: 0;
}
.patent-desc {
  font-size: 0.88rem;
  color: rgba(255,255,255,0.6);
  line-height: 1.9;
  margin: 0;
}
.patent-specs { border-top: 1px solid rgba(201,168,76,0.12); padding-top: 20px; }
.patent-specs h4 {
  font-size: 0.7rem;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--gold);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.specs-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
.spec-item {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.spec-icon {
  width: 36px; height: 36px;
  border: 1px solid rgba(201,168,76,0.3);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 0.85rem;
  flex-shrink: 0;
}
.spec-item strong {
  display: block;
  font-size: 0.78rem;
  color: var(--white);
  font-weight: 600;
  margin-bottom: 2px;
}
.spec-item span {
  font-size: 0.72rem;
  color: rgba(255,255,255,0.45);
}
.patent-actions {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
  padding-top: 8px;
}
.btn-outline-patent {
  background: transparent;
  color: rgba(255,255,255,0.75);
  border: 1px solid rgba(255,255,255,0.25);
}
.btn-outline-patent:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── Products CTA ───────────────────────────────── */
.products-cta {
  padding: 80px 0;
  background: var(--off-white);
  border-top: 1px solid rgba(5,14,31,0.06);
}
.cta-inner {
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 16px;
}
.cta-icon {
  width: 64px; height: 64px;
  border: 1px solid var(--gold);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gold);
  font-size: 1.4rem;
  margin-bottom: 8px;
}
.cta-inner h3 {
  font-family: var(--font-serif);
  font-size: 1.8rem;
  font-weight: 400;
  color: var(--navy-deep);
  letter-spacing: 2px;
}
.cta-inner p {
  font-size: 0.9rem;
  color: var(--gray-300);
  margin-bottom: 8px;
}

/* ── Modal ──────────────────────────────────────── */
.prod-modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(5,14,31,0.88);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  visibility: hidden;
  transition: all 0.4s ease;
}
.prod-modal-overlay.open {
  opacity: 1;
  visibility: visible;
}
.prod-modal {
  background: var(--white);
  max-width: 760px;
  width: 100%;
  max-height: 92vh;
  overflow-y: auto;
  position: relative;
  transform: translateY(30px);
  transition: transform 0.4s ease;
  scroll-behavior: smooth;
}
.prod-modal-overlay.open .prod-modal {
  transform: translateY(0);
}
.modal-close {
  position: absolute;
  top: 16px; right: 16px;
  width: 36px; height: 36px;
  background: var(--navy-deep);
  color: var(--white);
  border: none;
  cursor: pointer;
  font-size: 0.9rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.3s;
  z-index: 10;
}
.modal-close:hover { background: var(--gold); color: var(--navy-deep); }
.modal-header {
  padding: 36px 40px 20px;
  border-bottom: 1px solid rgba(5,14,31,0.08);
}
.modal-header h3 {
  font-family: var(--font-serif);
  font-size: 1.6rem;
  color: var(--navy-deep);
  margin-bottom: 6px;
  letter-spacing: 2px;
}
.modal-header p {
  font-size: 0.78rem;
  color: var(--gray-300);
  letter-spacing: 1px;
}
.modal-body {
  padding: 32px 40px;
  min-height: 200px;
}
/* 동영상 플레이어 */
.modal-video-wrap {
  position: relative;
  width: 100%;
  padding-bottom: 56.25%;
  background: var(--navy-deep);
  margin-bottom: 20px;
}
.modal-video-wrap video,
.modal-video-wrap iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}
/* PDF 뷰어 */
.modal-pdf-wrap {
  width: 100%;
  height: 480px;
  border: 1px solid rgba(5,14,31,0.1);
  background: #f0ede8;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 16px;
}
.modal-pdf-placeholder i {
  font-size: 3rem;
  color: var(--gold);
  opacity: 0.6;
}
.modal-pdf-placeholder p {
  font-size: 0.88rem;
  color: var(--gray-300);
  text-align: center;
  line-height: 1.7;
}
.modal-pdf-placeholder .pdf-upload-info {
  font-size: 0.78rem;
  color: var(--gold);
  background: rgba(201,168,76,0.08);
  border: 1px solid rgba(201,168,76,0.2);
  padding: 10px 20px;
  letter-spacing: 1px;
}
.modal-notice {
  padding: 14px 40px;
  background: rgba(201,168,76,0.06);
  border-top: 1px solid rgba(201,168,76,0.15);
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
  color: var(--gray-300);
}
.modal-notice i { color: var(--gold); }
.modal-footer {
  padding: 20px 40px 36px;
  display: flex;
  justify-content: center;
}

/* ── Responsive ─────────────────────────────────── */
@media (max-width: 1100px) {
  .product-card-inner { grid-template-columns: 340px 1fr; }
  .patent-card { grid-template-columns: 1fr 1fr; }
}
@media (max-width: 900px) {
  .product-card-inner { grid-template-columns: 1fr; }
  .product-img-wrap { height: 260px; }
  .patent-card { grid-template-columns: 1fr; }
  .patent-img-wrap { min-height: 260px; }
  .patent-card-right { padding: 36px 28px; }
  .specs-grid { grid-template-columns: 1fr; }
  .product-tabs { padding: 0 24px; overflow-x: auto; }
  .ptab { white-space: nowrap; }
}
@media (max-width: 640px) {
  .product-info { padding: 28px 24px; }
  .product-features { grid-template-columns: 1fr; }
  .product-actions { flex-direction: column; }
  .btn-prod-detail, .btn-prod-inquiry { width: 100%; justify-content: center; }
  .modal-header, .modal-body, .modal-footer { padding-left: 24px; padding-right: 24px; }
}

/* ── 특허증 영역 ─────────────────────────────── */
.patent-cert-wrap {
  margin-top: 20px;
  padding: 0 20px 20px;
}
.patent-cert-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  color: var(--gold);
  text-align: center;
  margin-bottom: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 6px;
}
.patent-cert-frame {
  position: relative;
  cursor: pointer;
  border-radius: 10px;
  overflow: hidden;
  box-shadow: 0 8px 32px rgba(0,0,0,0.45), 0 0 0 2px rgba(201,168,76,0.5);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}
.patent-cert-frame:hover {
  transform: scale(1.025) translateY(-4px);
  box-shadow: 0 16px 48px rgba(0,0,0,0.6), 0 0 0 3px var(--gold);
}
.patent-cert-frame img {
  width: 100%;
  display: block;
  object-fit: cover;
  filter: none !important;
  transform: none !important;
  transition: none !important;
}
.patent-cert-hover {
  position: absolute;
  inset: 0;
  background: rgba(6,24,58,0.55);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 8px;
  opacity: 0;
  transition: opacity 0.25s ease;
}
.patent-cert-frame:hover .patent-cert-hover { opacity: 1; }
.patent-cert-hover i {
  font-size: 2rem;
  color: var(--gold);
}
.patent-cert-hover span {
  font-size: 0.85rem;
  font-weight: 700;
  color: #fff;
  letter-spacing: 0.08em;
}
.patent-cert-no {
  text-align: center;
  margin-top: 10px;
  font-family: 'Montserrat', sans-serif;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--gold-light);
}

/* 특허증 모달 애니메이션 */
@keyframes certFadeIn {
  from { opacity: 0; transform: scale(0.88) translateY(20px); }
  to   { opacity: 1; transform: scale(1)    translateY(0); }
}