/* ==========================================================================
   STELLAR PIPES - PAGE SPECIFIC STYLES
   File: css/pages.css
   ========================================================================== */

/* 1. HERO SECTION (index.html) */
.hero-section {
  position: relative;
  background: radial-gradient(circle at 80% 20%, #13395F 0%, #0A2540 60%, #061627 100%);
  color: #FFFFFF;
  padding: 80px 0 110px;
  overflow: hidden;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 50px;
  align-items: center;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero-badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 22px;
}

.hero-chip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #FFFFFF;
  font-size: 0.84rem;
  font-weight: 600;
  padding: 6px 14px;
  border-radius: var(--radius-full);
}

.hero-chip-gold {
  background: rgba(245, 165, 36, 0.2);
  border-color: rgba(245, 165, 36, 0.4);
  color: var(--safety);
}

.hero-title {
  color: #FFFFFF;
  font-size: clamp(2.2rem, 3.8vw, 3.3rem);
  font-weight: 800;
  line-height: 1.18;
  margin-bottom: 20px;
  letter-spacing: -0.025em;
}

.hero-title span {
  background: linear-gradient(135deg, #19B5E8 0%, #FFFFFF 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.hero-sub {
  color: #CBD5E1;
  font-size: 1.15rem;
  line-height: 1.6;
  margin-bottom: 34px;
  max-width: 580px;
}

.hero-cta-group {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 16px;
}

/* Hero Right Visual: Authentic Real Photography Card */
.hero-visual-wrap {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.hero-photo-card {
  position: relative;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: var(--radius-lg);
  padding: 12px;
  width: 100%;
  max-width: 480px;
  box-shadow: 0 25px 60px rgba(0, 0, 0, 0.45);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  overflow: hidden;
  transition: transform var(--transition-normal), border-color var(--transition-normal);
}

.hero-photo-card:hover {
  transform: translateY(-4px);
  border-color: rgba(25, 181, 232, 0.5);
}

.hero-photo-container {
  position: relative;
  border-radius: var(--radius);
  overflow: hidden;
  height: 290px;
  background: #061627;
}

.hero-real-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.6s ease;
}

.hero-photo-card:hover .hero-real-img {
  transform: scale(1.05);
}

.hero-photo-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(10, 37, 64, 0.88);
  backdrop-filter: blur(8px);
  -webkit-backdrop-filter: blur(8px);
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.78rem;
  font-weight: 700;
  padding: 6px 12px;
  border-radius: var(--radius-full);
  border: 1px solid rgba(25, 181, 232, 0.4);
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.25);
}

.badge-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #16A34A;
  box-shadow: 0 0 8px #16A34A;
  display: inline-block;
  animation: pulse-dot 2s infinite;
}

@keyframes pulse-dot {
  0% { transform: scale(0.95); opacity: 0.8; }
  50% { transform: scale(1.2); opacity: 1; }
  100% { transform: scale(0.95); opacity: 0.8; }
}

.hero-photo-caption {
  padding: 12px 6px 4px;
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.hero-photo-caption strong {
  color: #FFFFFF;
  font-family: var(--font-heading);
  font-size: 0.95rem;
}

.hero-photo-caption span {
  color: #94A3B8;
  font-size: 0.8rem;
}

/* Wave Divider */
.wave-divider {
  position: absolute;
  bottom: 0;
  left: 0;
  width: 100%;
  overflow: hidden;
  line-height: 0;
  z-index: 1;
}

.wave-divider svg {
  position: relative;
  display: block;
  width: calc(100% + 1.3px);
  height: 48px;
  fill: #FFFFFF;
}

/* 2. APPLICATION FINDER TABS */
.app-tabs-nav {
  display: flex;
  justify-content: center;
  gap: 12px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.app-tab-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 12px 22px;
  background: var(--bg-soft);
  border: 1.5px solid var(--line);
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: 0.95rem;
  color: var(--navy);
  transition: all var(--transition-fast);
}

.app-tab-btn:hover {
  border-color: var(--blue);
  color: var(--blue);
}

.app-tab-btn.active {
  background: var(--blue);
  border-color: var(--blue);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(11, 94, 215, 0.25);
}

.app-tab-content-panel {
  display: none;
  animation: fadeIn 0.3s ease;
}

.app-tab-content-panel.active {
  display: block;
}

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(6px); }
  to { opacity: 1; transform: translateY(0); }
}

.app-highlight-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 32px;
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  padding: 36px;
  box-shadow: var(--shadow);
}

/* 3. INTERACTIVE PIPE SELECTOR TOOL */
.selector-tool-box {
  background: var(--surface);
  border: 2px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  padding: 36px;
  margin-top: 20px;
}

.selector-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 40px;
  align-items: center;
}

.selector-result-card {
  background: var(--bg-soft);
  border: 1.5px solid var(--line);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
  height: 100%;
}

.result-badge {
  display: inline-block;
  background: var(--aqua-soft);
  color: var(--blue);
  font-size: 0.76rem;
  font-weight: 700;
  padding: 4px 10px;
  border-radius: var(--radius-full);
  text-transform: uppercase;
  margin-bottom: 12px;
}

.result-rec-title {
  font-size: 1.35rem;
  color: var(--navy);
  margin-bottom: 12px;
}

.result-specs-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 22px;
}

.result-spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.92rem;
  padding-bottom: 6px;
  border-bottom: 1px solid var(--line);
}

.selector-disclaimer {
  font-size: 0.78rem;
  color: var(--muted);
  font-style: italic;
  margin-top: 10px;
}

/* 4. MANUFACTURING SHOWCASE & TIMELINE */
.mfg-timeline-grid {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: 16px;
  margin-top: 40px;
}

.timeline-step {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 20px 16px;
  text-align: center;
  position: relative;
  transition: transform var(--transition-fast);
}

.timeline-step:hover {
  transform: translateY(-4px);
  border-color: var(--blue);
}

.step-num {
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: var(--blue);
  color: #FFFFFF;
  font-weight: 700;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 12px;
}

.step-title {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--navy);
  margin-bottom: 6px;
}

.step-desc {
  font-size: 0.8rem;
  color: var(--muted);
  line-height: 1.4;
}

/* 5. GOOGLE REVIEWS SECTION */
.reviews-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 26px;
  margin-top: 36px;
}

.review-card {
  background: #FFFFFF;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  box-shadow: var(--shadow-sm);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.review-stars {
  color: #F59E0B;
  font-size: 1.1rem;
  margin-bottom: 14px;
}

.review-quote {
  font-size: 0.95rem;
  color: var(--ink);
  font-style: italic;
  line-height: 1.6;
  margin-bottom: 20px;
  flex-grow: 1;
}

.reviewer-meta {
  display: flex;
  align-items: center;
  gap: 12px;
  border-top: 1px solid var(--line);
  padding-top: 14px;
}

.reviewer-avatar {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--aqua-soft);
  color: var(--blue);
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
}

.reviewer-name {
  font-weight: 700;
  font-size: 0.92rem;
  color: var(--navy);
}

.reviewer-source {
  font-size: 0.78rem;
  color: var(--muted);
}

/* 6. DEALER & BULK BANNERS */
.cta-banner-box {
  background: radial-gradient(circle at 10% 50%, #13395F 0%, #0A2540 80%);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 56px 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 36px;
  box-shadow: var(--shadow-lg);
}

.cta-banner-content h2 {
  color: #FFFFFF;
  margin-bottom: 12px;
}

.cta-banner-content p {
  color: #CBD5E1;
  max-width: 600px;
  font-size: 1.05rem;
}

.cta-banner-actions {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}

/* 7. GALLERY & LIGHTBOX */
.gallery-filter-nav {
  display: flex;
  justify-content: center;
  gap: 10px;
  margin-bottom: 36px;
  flex-wrap: wrap;
}

.gallery-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.gallery-item {
  position: relative;
  height: 260px;
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--line);
  background: var(--bg-soft);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-normal);
}

.gallery-item:hover img {
  transform: scale(1.06);
}

.gallery-item-overlay {
  position: absolute;
  bottom: 0; left: 0; right: 0;
  padding: 20px;
  background: linear-gradient(to top, rgba(10, 37, 64, 0.9) 0%, transparent 100%);
  color: #FFFFFF;
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

/* Lightbox Modal */
.lightbox-modal {
  position: fixed;
  top: 0; left: 0; right: 0; bottom: 0;
  background: rgba(0, 0, 0, 0.9);
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 3000;
  opacity: 0;
  visibility: hidden;
  transition: all var(--transition-fast);
  padding: 30px;
}

.lightbox-modal.is-active {
  opacity: 1;
  visibility: visible;
}

.lightbox-content-box {
  max-width: 900px;
  max-height: 85vh;
  position: relative;
}

.lightbox-img {
  max-width: 100%;
  max-height: 80vh;
  border-radius: var(--radius);
}

.lightbox-caption {
  color: #FFFFFF;
  text-align: center;
  margin-top: 14px;
  font-size: 0.95rem;
}