/* =============================================
   SolutionMall Engineering Accessories Website
   Main Stylesheet - Dark Blue Professional Theme
   ============================================= */

:root {
  --primary: #1a56db;
  --primary-dark: #1e3a8a;
  --primary-light: #3b82f6;
  --accent: #f59e0b;
  --dark-bg: #0a1628;
  --dark-bg2: #0f1f3d;
  --dark-bg3: #132044;
  --dark-card: #1a2d52;
  --dark-card2: #1e3461;
  --text-primary: #f0f4ff;
  --text-secondary: #94a3b8;
  --text-muted: #64748b;
  --border: rgba(59, 130, 246, 0.2);
  --border-light: rgba(255,255,255,0.08);
  --gradient-hero: linear-gradient(135deg, #0a1628 0%, #1e3a8a 50%, #0a1628 100%);
  --shadow-card: 0 4px 24px rgba(0,0,0,0.3);
  --shadow-hover: 0 8px 40px rgba(26,86,219,0.3);
  --radius: 12px;
  --radius-lg: 20px;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html { scroll-behavior: smooth; font-size: 16px; }

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--dark-bg);
  color: var(--text-primary);
  line-height: 1.6;
  overflow-x: hidden;
}

a { color: var(--primary-light); text-decoration: none; transition: var(--transition); }
a:hover { color: var(--accent); }

img { max-width: 100%; height: auto; display: block; }

.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 24px;
}

/* ---- BUTTONS ---- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 8px;
  font-weight: 600;
  font-size: 0.9rem;
  cursor: pointer;
  border: 2px solid transparent;
  transition: var(--transition);
  white-space: nowrap;
  text-decoration: none;
}
.btn-primary {
  background: var(--primary);
  color: #fff;
  border-color: var(--primary);
}
.btn-primary:hover {
  background: var(--primary-light);
  border-color: var(--primary-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(26,86,219,0.4);
}
.btn-outline {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}
.btn-outline:hover {
  background: rgba(255,255,255,0.1);
  border-color: #fff;
  color: #fff;
}
.btn-outline-white {
  background: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.6);
}
.btn-outline-white:hover {
  background: rgba(255,255,255,0.15);
  color: #fff;
}
.btn-sm { padding: 8px 16px; font-size: 0.82rem; }
.btn-lg { padding: 14px 32px; font-size: 1rem; }
.btn-xl { padding: 18px 40px; font-size: 1.1rem; border-radius: 10px; }

/* ---- HEADER ---- */
.site-header {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 1000;
  background: rgba(10, 22, 40, 0.95);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  transition: var(--transition);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 24px;
  max-width: 1280px;
  margin: 0 auto;
  gap: 24px;
}
.header-logo a {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  text-decoration: none;
}
.logo-img {
  height: 36px;
  width: auto;
  filter: brightness(1.1);
}
.logo-url {
  font-size: 0.7rem;
  color: var(--primary-light);
  font-weight: 500;
  letter-spacing: 0.02em;
}
.header-nav ul {
  display: flex;
  list-style: none;
  gap: 4px;
}
.header-nav ul li a {
  padding: 8px 14px;
  border-radius: 6px;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: var(--transition);
}
.header-nav ul li a:hover {
  color: var(--text-primary);
  background: rgba(59,130,246,0.1);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 12px;
}
.lang-switcher select {
  background: var(--dark-card);
  color: var(--text-primary);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 7px 12px;
  font-size: 0.82rem;
  cursor: pointer;
  outline: none;
  transition: var(--transition);
}
.lang-switcher select:hover {
  border-color: var(--primary-light);
}
.mobile-menu-btn {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.mobile-menu-btn span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-primary);
  border-radius: 2px;
  transition: var(--transition);
}

/* ---- HERO ---- */
.hero-section {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  overflow: hidden;
}
.hero-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}
.hero-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}
.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(10,22,40,0.92) 0%, rgba(10,22,40,0.75) 50%, rgba(10,22,40,0.88) 100%);
}
.hero-content {
  position: relative;
  z-index: 1;
  padding-top: 100px;
  padding-bottom: 80px;
  max-width: 800px;
}
.hero-badge {
  display: inline-block;
  background: rgba(26,86,219,0.2);
  border: 1px solid rgba(59,130,246,0.4);
  color: var(--primary-light);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 0.82rem;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  margin-bottom: 20px;
}
.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  line-height: 1.15;
  color: #fff;
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}
.hero-subtitle {
  font-size: 1.1rem;
  color: rgba(240,244,255,0.8);
  max-width: 620px;
  margin-bottom: 36px;
  line-height: 1.7;
}
.hero-actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 48px;
}
.hero-stats {
  display: flex;
  gap: 32px;
  flex-wrap: wrap;
}
.stat-item {
  display: flex;
  flex-direction: column;
  gap: 4px;
}
.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--primary-light);
  line-height: 1;
}
.stat-label {
  font-size: 0.78rem;
  color: var(--text-secondary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ---- SECTIONS ---- */
.section {
  padding: 96px 0;
}
.section:nth-child(even) {
  background: var(--dark-bg2);
}
.section-header {
  text-align: center;
  margin-bottom: 60px;
}
.section-tag {
  display: inline-block;
  background: rgba(26,86,219,0.15);
  border: 1px solid rgba(59,130,246,0.3);
  color: var(--primary-light);
  padding: 5px 14px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.8rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
  letter-spacing: -0.02em;
}
.section-desc {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 640px;
  margin: 0 auto;
  line-height: 1.7;
}

/* ---- OVERVIEW ---- */
.overview-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: start;
}
.overview-main p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 32px;
  font-size: 1rem;
}
.value-cards {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}
.value-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
  transition: var(--transition);
}
.value-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.value-icon {
  font-size: 1.8rem;
  margin-bottom: 10px;
}
.value-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.value-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin: 0;
}
.overview-image img {
  border-radius: var(--radius-lg);
  width: 100%;
  object-fit: cover;
  border: 1px solid var(--border);
  box-shadow: var(--shadow-card);
}

/* ---- PRODUCTS ---- */
.products-section { background: var(--dark-bg); }
.module-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}
.tab-btn {
  padding: 12px 24px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--dark-card);
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.tab-btn:hover, .tab-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}
.tab-content { display: none; }
.tab-content.active { display: block; }
.products-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.product-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.product-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.product-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.product-card h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.product-card p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}
.product-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 12px;
}
.product-tags span {
  background: rgba(26,86,219,0.15);
  border: 1px solid rgba(59,130,246,0.25);
  color: var(--primary-light);
  padding: 3px 10px;
  border-radius: 20px;
  font-size: 0.72rem;
  font-weight: 500;
}
.product-apps {
  font-size: 0.8rem;
  color: var(--text-muted);
  border-top: 1px solid var(--border-light);
  padding-top: 10px;
}
.product-apps strong {
  color: var(--text-secondary);
  margin-right: 4px;
}

/* ---- SCENARIOS ---- */
.scenarios-section { background: var(--dark-bg2); }
.scenarios-tabs {
  display: flex;
  gap: 8px;
  margin-bottom: 40px;
  justify-content: center;
  flex-wrap: wrap;
}
.stab-btn {
  padding: 10px 22px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--dark-card);
  color: var(--text-secondary);
  font-size: 0.88rem;
  font-weight: 600;
  cursor: pointer;
  transition: var(--transition);
}
.stab-btn:hover, .stab-btn.active {
  background: var(--primary-dark);
  border-color: var(--primary-light);
  color: #fff;
}
.scenarios-content { display: none; }
.scenarios-content.active { display: block; }
.scenario-cards {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(360px, 1fr));
  gap: 24px;
}
.scenario-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
}
.scenario-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
  box-shadow: var(--shadow-hover);
}
.scenario-img-wrap {
  position: relative;
  height: 220px;
  overflow: hidden;
}
.scenario-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.scenario-card:hover .scenario-img-wrap img {
  transform: scale(1.05);
}
.scenario-badge {
  position: absolute;
  top: 12px;
  left: 12px;
  background: var(--primary);
  color: #fff;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 700;
}
.scenario-body {
  padding: 20px;
}
.scenario-body h3 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.scenario-body p {
  font-size: 0.85rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
}
.scenario-needs, .scenario-solution {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-bottom: 6px;
  line-height: 1.5;
}
.scenario-needs strong, .scenario-solution strong {
  color: var(--text-secondary);
  margin-right: 4px;
}

/* ---- SOLUTIONS ---- */
.solutions-section { background: var(--dark-bg); }
.solutions-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}
.solution-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: var(--transition);
  display: flex;
  flex-direction: column;
  text-decoration: none;
  color: inherit;
}
.solution-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-6px);
  box-shadow: var(--shadow-hover);
  color: inherit;
}
.solution-num {
  position: absolute;
  top: 12px;
  right: 12px;
  background: rgba(10,22,40,0.8);
  color: var(--primary-light);
  font-size: 0.75rem;
  font-weight: 800;
  padding: 4px 10px;
  border-radius: 20px;
  border: 1px solid var(--border);
}
.solution-img {
  position: relative;
  height: 180px;
  overflow: hidden;
}
.solution-img img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}
.solution-card:hover .solution-img img {
  transform: scale(1.05);
}
.solution-body {
  padding: 20px;
  flex: 1;
  display: flex;
  flex-direction: column;
}
.solution-body h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
  line-height: 1.4;
}
.solution-body p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.6;
  margin-bottom: 12px;
  flex: 1;
}
.solution-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 14px;
}
.solution-tags span {
  background: rgba(26,86,219,0.12);
  border: 1px solid rgba(59,130,246,0.2);
  color: var(--primary-light);
  padding: 2px 8px;
  border-radius: 20px;
  font-size: 0.7rem;
  font-weight: 500;
}
.solution-link {
  color: var(--primary-light);
  font-size: 0.85rem;
  font-weight: 600;
  transition: var(--transition);
}
.solution-card:hover .solution-link {
  color: var(--accent);
}

/* ---- SELECTION GUIDE ---- */
.guide-section { background: var(--dark-bg2); }
.guide-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.guide-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px;
  transition: var(--transition);
}
.guide-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
}
.guide-icon {
  font-size: 2rem;
  margin-bottom: 12px;
}
.guide-card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
}
.guide-card ul {
  list-style: none;
  padding: 0;
}
.guide-card ul li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 4px 0;
  padding-left: 16px;
  position: relative;
  line-height: 1.5;
}
.guide-card ul li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--primary-light);
  font-size: 0.75rem;
}
.scenario-table-wrap {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.table-title {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.table-responsive { overflow-x: auto; }
.scenario-table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.88rem;
}
.scenario-table th {
  background: rgba(26,86,219,0.2);
  color: var(--primary-light);
  padding: 12px 16px;
  text-align: left;
  font-weight: 700;
  border-bottom: 1px solid var(--border);
}
.scenario-table td {
  padding: 12px 16px;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-light);
  vertical-align: top;
}
.scenario-table tr:hover td {
  background: rgba(26,86,219,0.05);
  color: var(--text-primary);
}
.scenario-table td:first-child {
  color: var(--text-primary);
  font-weight: 600;
}

/* ---- GUIDE CTA BANNER ---- */
.guide-cta-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 32px;
  background: linear-gradient(135deg, rgba(26,86,219,0.12) 0%, rgba(59,130,246,0.08) 100%);
  border: 1px solid rgba(59,130,246,0.3);
  border-radius: 16px;
  padding: 36px 40px;
  margin-top: 48px;
  flex-wrap: wrap;
}
.guide-cta-banner-left {
  flex: 1;
  min-width: 260px;
}
.guide-cta-banner-title {
  font-size: 1.2rem;
  font-weight: 800;
  color: #f1f5f9;
  margin-bottom: 8px;
}
.guide-cta-banner-desc {
  font-size: 0.92rem;
  color: #94a3b8;
  line-height: 1.6;
  margin-bottom: 14px;
}
.guide-cta-banner-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}
.guide-cta-banner-tags span {
  background: rgba(59,130,246,0.12);
  border: 1px solid rgba(59,130,246,0.25);
  color: #93c5fd;
  padding: 4px 12px;
  border-radius: 20px;
  font-size: 0.78rem;
  font-weight: 600;
}
.guide-cta-banner-btn {
  display: flex;
  align-items: center;
  gap: 10px;
  background: linear-gradient(135deg, #1a56db, #3b82f6);
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
  padding: 16px 32px;
  border-radius: 10px;
  text-decoration: none;
  white-space: nowrap;
  transition: all 0.3s ease;
  box-shadow: 0 4px 20px rgba(26,86,219,0.35);
  flex-shrink: 0;
}
.guide-cta-banner-btn:hover {
  background: linear-gradient(135deg, #1e40af, #2563eb);
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(26,86,219,0.5);
  color: #fff;
}
@media (max-width: 768px) {
  .guide-cta-banner {
    flex-direction: column;
    padding: 28px 24px;
    text-align: center;
  }
  .guide-cta-banner-tags { justify-content: center; }
  .guide-cta-banner-btn { width: 100%; justify-content: center; }
}

/* ---- COMPLIANCE ---- */
.compliance-section { background: var(--dark-bg); }
.compliance-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
  margin-bottom: 48px;
}
.cert-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 20px;
  text-align: center;
  transition: var(--transition);
}
.cert-card:hover {
  border-color: var(--primary-light);
  transform: translateY(-4px);
}
.cert-logo {
  font-size: 1.8rem;
  font-weight: 900;
  color: var(--primary-light);
  background: rgba(26,86,219,0.15);
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 16px;
  border: 2px solid rgba(59,130,246,0.3);
  letter-spacing: -0.05em;
}
.cert-card h4 {
  font-size: 1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 8px;
}
.cert-card p {
  font-size: 0.82rem;
  color: var(--text-secondary);
  line-height: 1.5;
}
.standards-list {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px;
}
.standards-list h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 20px;
}
.standards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 12px;
}
.standard-item {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 12px;
  background: rgba(26,86,219,0.05);
  border-radius: 8px;
  border: 1px solid var(--border-light);
}
.standard-item strong {
  color: var(--primary-light);
  font-size: 0.88rem;
  white-space: nowrap;
  font-weight: 700;
}
.standard-item span {
  color: var(--text-secondary);
  font-size: 0.82rem;
  line-height: 1.4;
}

/* ---- DEMAND SECTION ---- */
.demand-section {
  background: linear-gradient(135deg, var(--primary-dark) 0%, #1e3a8a 50%, var(--dark-bg2) 100%);
  padding: 80px 0;
}
.demand-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 48px;
  flex-wrap: wrap;
}
.demand-text {
  flex: 1;
  min-width: 300px;
}
.demand-text h2 {
  font-size: clamp(1.6rem, 3vw, 2.4rem);
  font-weight: 800;
  color: #fff;
  margin-bottom: 16px;
  margin-top: 12px;
}
.demand-text p {
  color: rgba(240,244,255,0.8);
  font-size: 1rem;
  line-height: 1.7;
  margin-bottom: 24px;
}
.demand-features {
  list-style: none;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.demand-features li {
  color: rgba(240,244,255,0.85);
  font-size: 0.88rem;
  padding-left: 20px;
  position: relative;
}
.demand-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-weight: 700;
}
.demand-actions {
  display: flex;
  flex-direction: column;
  gap: 14px;
  min-width: 220px;
}

/* ---- FOOTER ---- */
.site-footer {
  background: var(--dark-bg);
  border-top: 1px solid var(--border);
  padding: 64px 0 0;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.footer-brand a {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 4px;
  margin-bottom: 16px;
  text-decoration: none;
}
.footer-logo {
  height: 40px;
  width: auto;
  filter: brightness(1.1);
}
.footer-url {
  font-size: 0.78rem;
  color: var(--primary-light);
  font-weight: 500;
}
.footer-brand p {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.6;
  margin-bottom: 20px;
}
.footer-contact {
  display: flex;
  flex-direction: column;
  gap: 10px;
}
.contact-item {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 0.85rem;
}
.contact-icon {
  font-size: 1rem;
  width: 20px;
  text-align: center;
}
.contact-item a {
  color: var(--text-secondary);
  transition: var(--transition);
}
.contact-item a:hover {
  color: var(--primary-light);
}
.footer-col h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.footer-col ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.footer-col ul li a {
  font-size: 0.85rem;
  color: var(--text-muted);
  transition: var(--transition);
}
.footer-col ul li a:hover {
  color: var(--primary-light);
  padding-left: 4px;
}
.footer-bottom {
  border-top: 1px solid var(--border-light);
  padding: 20px 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
}
.footer-bottom p {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* ---- SOLUTION PAGE STYLES ---- */
.solution-page-header {
  padding: 120px 0 60px;
  background: linear-gradient(135deg, var(--dark-bg) 0%, var(--dark-bg2) 100%);
  border-bottom: 1px solid var(--border);
}
.solution-breadcrumb {
  font-size: 0.82rem;
  color: var(--text-muted);
  margin-bottom: 16px;
}
.solution-breadcrumb a {
  color: var(--primary-light);
}
.solution-breadcrumb span {
  margin: 0 8px;
}
.solution-page-title {
  font-size: clamp(1.8rem, 3.5vw, 3rem);
  font-weight: 800;
  color: var(--text-primary);
  margin-bottom: 16px;
}
.solution-page-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 680px;
  line-height: 1.7;
}
.solution-hero-img {
  width: 100%;
  max-height: 480px;
  object-fit: cover;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  margin: 40px 0;
}
.solution-content-grid {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 40px;
  margin-bottom: 48px;
}
.solution-section-title {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 16px;
  padding-bottom: 10px;
  border-bottom: 2px solid var(--primary);
}
.solution-text p {
  color: var(--text-secondary);
  line-height: 1.8;
  margin-bottom: 16px;
}
.solution-text ul {
  list-style: none;
  padding: 0;
  margin-bottom: 16px;
}
.solution-text ul li {
  color: var(--text-secondary);
  padding: 6px 0 6px 20px;
  position: relative;
  font-size: 0.9rem;
  line-height: 1.6;
}
.solution-text ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--primary-light);
}
.solution-sidebar {
  display: flex;
  flex-direction: column;
  gap: 20px;
}
.sidebar-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px;
}
.sidebar-card h4 {
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--primary-light);
  margin-bottom: 12px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.sidebar-card ul {
  list-style: none;
  padding: 0;
}
.sidebar-card ul li {
  font-size: 0.82rem;
  color: var(--text-secondary);
  padding: 5px 0;
  border-bottom: 1px solid var(--border-light);
}
.sidebar-card ul li:last-child { border-bottom: none; }
.products-list-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
  margin-bottom: 48px;
}
.product-item {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  display: flex;
  align-items: center;
  gap: 12px;
  transition: var(--transition);
}
.product-item:hover {
  border-color: var(--primary-light);
}
.product-item-icon {
  font-size: 1.5rem;
  flex-shrink: 0;
}
.product-item-name {
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--text-primary);
}
.workflow-steps {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-bottom: 48px;
}
.workflow-step {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 20px;
}
.step-num {
  background: var(--primary);
  color: #fff;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 700;
  flex-shrink: 0;
}
.step-text {
  font-size: 0.88rem;
  color: var(--text-secondary);
  line-height: 1.6;
  padding-top: 4px;
}
.back-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  color: var(--primary-light);
  font-size: 0.88rem;
  font-weight: 600;
  margin-bottom: 16px;
  transition: var(--transition);
}
.back-btn:hover {
  color: var(--accent);
  gap: 12px;
}

/* ---- ANIMATIONS ---- */
@keyframes fadeInUp {
  from { opacity: 0; transform: translateY(30px); }
  to { opacity: 1; transform: translateY(0); }
}
.animate-in {
  animation: fadeInUp 0.6s ease forwards;
}
.animate-delay-1 { animation-delay: 0.1s; }
.animate-delay-2 { animation-delay: 0.2s; }
.animate-delay-3 { animation-delay: 0.3s; }

/* ---- SCROLLBAR ---- */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--dark-bg); }
::-webkit-scrollbar-thumb { background: var(--dark-card2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--primary); }

/* ---- RESPONSIVE ---- */
@media (max-width: 1100px) {
  .overview-grid { grid-template-columns: 1fr; }
  .solutions-grid { grid-template-columns: repeat(2, 1fr); }
  .guide-grid { grid-template-columns: repeat(2, 1fr); }
  .compliance-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .standards-grid { grid-template-columns: repeat(2, 1fr); }
  .solution-content-grid { grid-template-columns: 1fr; }
  .products-list-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .header-nav { display: none; }
  .header-nav.open {
    display: block;
    position: fixed;
    top: 64px; left: 0; right: 0;
    background: rgba(10, 22, 40, 0.98);
    border-bottom: 1px solid rgba(59,130,246,0.2);
    padding: 20px 24px 24px;
    z-index: 999;
    backdrop-filter: blur(16px);
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
  }
  .header-nav.open ul {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 8px;
    width: 100%;
    list-style: none;
    margin: 0;
    padding: 0;
  }
  .header-nav.open ul li a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 12px 8px;
    border-radius: 8px;
    font-size: 0.88rem;
    font-weight: 600;
    color: var(--text-secondary);
    background: rgba(255,255,255,0.04);
    border: 1px solid rgba(255,255,255,0.06);
    text-align: center;
    transition: all 0.2s ease;
  }
  .header-nav.open ul li a:hover,
  .header-nav.open ul li a.active {
    color: #fff;
    background: rgba(59,130,246,0.15);
    border-color: rgba(59,130,246,0.3);
  }
  .mobile-menu-btn { display: flex; }
  .hero-content { padding-top: 80px; }
  .hero-stats { gap: 20px; }
  .products-grid { grid-template-columns: 1fr 1fr; }
  .solutions-grid { grid-template-columns: 1fr; }
  .guide-grid { grid-template-columns: 1fr; }
  .compliance-grid { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr; }
  .standards-grid { grid-template-columns: 1fr; }
  .demand-inner { flex-direction: column; }
  .demand-actions { flex-direction: row; flex-wrap: wrap; }
  .scenario-cards { grid-template-columns: 1fr; }
  .value-cards { grid-template-columns: 1fr; }
  .products-list-grid { grid-template-columns: 1fr; }
}
@media (max-width: 480px) {
  .products-grid { grid-template-columns: 1fr; }
  .compliance-grid { grid-template-columns: 1fr; }
  .hero-actions { flex-direction: column; }
  .demand-features { grid-template-columns: 1fr; }
}

/* ============================================================
   INDUSTRY INSIGHTS SECTION
   ============================================================ */
.insights-section {
  background: linear-gradient(135deg, #0a1628 0%, #0d1f3c 50%, #0a1628 100%);
  position: relative;
  overflow: hidden;
}
.insights-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin-top: 0;
}
.insight-card {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 2rem 1.5rem;
  position: relative;
  transition: all 0.3s ease;
  cursor: default;
  overflow: hidden;
}
.insight-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, #1e88e5, #00bcd4);
  transform: scaleX(0);
  transition: transform 0.3s ease;
}
.insight-card:hover {
  background: rgba(30,136,229,0.1);
  border-color: rgba(30,136,229,0.3);
  transform: translateY(-4px);
  box-shadow: 0 12px 40px rgba(30,136,229,0.15);
}
.insight-card:hover::before { transform: scaleX(1); }
.insight-number {
  font-size: 3rem;
  font-weight: 900;
  color: rgba(30,136,229,0.2);
  line-height: 1;
  margin-bottom: 0.5rem;
  font-family: 'Courier New', monospace;
}
.insight-icon { font-size: 1.8rem; margin-bottom: 1rem; }
.insight-card p { color: rgba(255,255,255,0.75); font-size: 0.9rem; line-height: 1.7; margin: 0; }

/* ============================================================
   ECOSYSTEM SECTION
   ============================================================ */
.ecosystem-section { background: #0d1f3c; }
.eco-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 2.5rem 0 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  padding-bottom: 0;
}
.eco-tab {
  padding: 0.75rem 1.5rem;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: -1px;
  white-space: nowrap;
}
.eco-tab:hover { color: rgba(255,255,255,0.85); border-bottom-color: rgba(30,136,229,0.5); }
.eco-tab.active { color: #1e88e5; border-bottom-color: #1e88e5; }
.eco-content { margin-top: 2rem; }
.eco-panel { display: none; }
.eco-panel.active { display: block; }
.eco-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
}
.eco-item {
  background: rgba(255,255,255,0.04);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 1.75rem 1.5rem;
  transition: all 0.3s ease;
}
.eco-item:hover {
  background: rgba(30,136,229,0.08);
  border-color: rgba(30,136,229,0.25);
  transform: translateY(-3px);
}
.eco-icon { font-size: 2rem; margin-bottom: 1rem; }
.eco-item h4 { color: #ffffff; font-size: 0.95rem; font-weight: 600; margin-bottom: 0.6rem; line-height: 1.4; }
.eco-item p { color: rgba(255,255,255,0.6); font-size: 0.85rem; line-height: 1.6; margin: 0; }

/* ============================================================
   CALCULATOR SECTION
   ============================================================ */
.calculator-section { background: linear-gradient(180deg, #0a1628 0%, #0d1f3c 100%); }
.calc-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 2.5rem 0 0;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.calc-tab {
  padding: 0.75rem 1.5rem;
  background: transparent;
  border: none;
  border-bottom: 3px solid transparent;
  color: rgba(255,255,255,0.55);
  font-size: 0.9rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-bottom: -1px;
  white-space: nowrap;
}
.calc-tab:hover { color: rgba(255,255,255,0.85); border-bottom-color: rgba(30,136,229,0.5); }
.calc-tab.active { color: #1e88e5; border-bottom-color: #1e88e5; }
.calc-content { margin-top: 2rem; }
.calc-panel { display: none; }
.calc-panel.active { display: block; }
.calc-inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  background: rgba(255,255,255,0.03);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 16px;
  padding: 2.5rem;
}
.calc-form h3 { color: #ffffff; font-size: 1.1rem; font-weight: 600; margin-bottom: 0.5rem; }
.calc-form > p { color: rgba(255,255,255,0.55); font-size: 0.85rem; margin-bottom: 1.5rem; line-height: 1.6; }
.form-row { margin-bottom: 1.25rem; }
.form-row label { display: block; color: rgba(255,255,255,0.75); font-size: 0.85rem; font-weight: 500; margin-bottom: 0.4rem; }
.form-row input, .form-row select {
  width: 100%;
  padding: 0.65rem 1rem;
  background: rgba(255,255,255,0.06);
  border: 1px solid rgba(255,255,255,0.15);
  border-radius: 8px;
  color: #ffffff;
  font-size: 0.9rem;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
}
.form-row input:focus, .form-row select:focus { outline: none; border-color: #1e88e5; background: rgba(30,136,229,0.08); }
.form-row select option { background: #0d1f3c; color: #ffffff; }
.calc-result { display: flex; align-items: center; justify-content: center; min-height: 300px; }
.result-placeholder { text-align: center; color: rgba(255,255,255,0.3); }
.result-placeholder .result-icon { font-size: 3rem; margin-bottom: 1rem; }
.result-placeholder p { font-size: 0.9rem; }
.calc-result-content { width: 100%; }
.calc-result-content h4 { color: #1e88e5; font-size: 1rem; font-weight: 600; margin-bottom: 1.5rem; padding-bottom: 0.75rem; border-bottom: 1px solid rgba(30,136,229,0.3); }
.result-item { display: flex; justify-content: space-between; align-items: center; padding: 0.75rem 0; border-bottom: 1px solid rgba(255,255,255,0.06); }
.result-item:last-child { border-bottom: none; }
.result-label { color: rgba(255,255,255,0.65); font-size: 0.85rem; }
.result-value { color: #ffffff; font-size: 1rem; font-weight: 600; }
.result-value.highlight { color: #00bcd4; font-size: 1.2rem; }
.result-recommendation { margin-top: 1.5rem; padding: 1rem 1.25rem; background: rgba(30,136,229,0.1); border: 1px solid rgba(30,136,229,0.25); border-radius: 10px; }
.result-recommendation h5 { color: #1e88e5; font-size: 0.85rem; font-weight: 600; margin-bottom: 0.5rem; }
.result-recommendation ul { list-style: none; padding: 0; margin: 0; }
.result-recommendation ul li { color: rgba(255,255,255,0.7); font-size: 0.82rem; padding: 0.25rem 0; padding-left: 1.2rem; position: relative; }
.result-recommendation ul li::before { content: 'arrow'; position: absolute; left: 0; color: #1e88e5; font-size: 0.7rem; }

/* Calculator quick links */
.calc-quick-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 7px 14px;
  background: rgba(30,136,229,0.08);
  border: 1px solid rgba(30,136,229,0.25);
  border-radius: 20px;
  color: #60a5fa;
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
  transition: all 0.2s ease;
  white-space: nowrap;
}
.calc-quick-link:hover {
  background: rgba(30,136,229,0.18);
  border-color: rgba(30,136,229,0.5);
  color: #93c5fd;
  transform: translateY(-1px);
}

@media (max-width: 1200px) {
  .insights-grid { grid-template-columns: repeat(2, 1fr); }
  .eco-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 768px) {
  .insights-grid { grid-template-columns: 1fr; }
  .eco-grid { grid-template-columns: 1fr; }
  .calc-inner { grid-template-columns: 1fr; }
  .eco-tabs, .calc-tabs { overflow-x: auto; flex-wrap: nowrap; }
  .eco-tab, .calc-tab { flex-shrink: 0; }
}

/* ===== CALCULATOR CARDS GRID ===== */
.calc-cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 12px;
}

.calc-card {
  background: var(--dark-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 32px 28px 24px;
  display: flex;
  flex-direction: column;
  gap: 0;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}
.calc-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--primary-light));
  opacity: 0;
  transition: var(--transition);
}
.calc-card:hover {
  border-color: rgba(59,130,246,0.5);
  box-shadow: var(--shadow-hover);
  transform: translateY(-4px);
}
.calc-card:hover::before { opacity: 1; }

.calc-card-icon {
  font-size: 2.4rem;
  line-height: 1;
  margin-bottom: 18px;
}

.calc-card-body {
  flex: 1;
}

.calc-card-title {
  color: #ffffff;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 10px;
  line-height: 1.3;
}

.calc-card-desc {
  color: var(--text-secondary);
  font-size: 0.875rem;
  line-height: 1.65;
  margin-bottom: 16px;
}

.calc-card-features {
  list-style: none;
  padding: 0;
  margin: 0 0 28px;
  display: flex;
  flex-direction: column;
  gap: 7px;
}
.calc-card-features li {
  color: var(--text-secondary);
  font-size: 0.82rem;
  padding-left: 18px;
  position: relative;
  line-height: 1.5;
}
.calc-card-features li::before {
  content: '✓';
  position: absolute;
  left: 0;
  color: var(--primary-light);
  font-weight: 700;
  font-size: 0.78rem;
}

.calc-card-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  background: var(--primary);
  color: #ffffff;
  text-decoration: none;
  border-radius: 10px;
  padding: 13px 20px;
  font-size: 0.92rem;
  font-weight: 600;
  letter-spacing: 0.01em;
  transition: var(--transition);
  margin-top: auto;
  border: none;
  cursor: pointer;
}
.calc-card-btn:hover {
  background: var(--primary-light);
  box-shadow: 0 4px 20px rgba(59,130,246,0.4);
  transform: translateY(-1px);
  color: #fff;
  text-decoration: none;
}
.calc-card-btn svg {
  transition: transform 0.2s ease;
  flex-shrink: 0;
}
.calc-card-btn:hover svg { transform: translateX(4px); }

@media (max-width: 1100px) {
  .calc-cards-grid { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 640px) {
  .calc-cards-grid { grid-template-columns: 1fr; }
  .calc-card { padding: 24px 20px 20px; }
}

/* ===== PARTNER CRM BUTTON ===== */
.btn-crm {
  background: transparent;
  border: 1.5px solid rgba(255,255,255,0.55);
  color: #fff;
  font-weight: 600;
  letter-spacing: 0.02em;
  padding: 7px 16px;
  border-radius: 6px;
  font-size: 0.82rem;
  transition: background 0.2s, border-color 0.2s, color 0.2s;
  white-space: nowrap;
  text-decoration: none;
  display: inline-flex;
  align-items: center;
}
.btn-crm:hover {
  background: rgba(255,255,255,0.12);
  border-color: #fff;
  color: #fff;
  text-decoration: none;
}

/* ===== FOOTER SOCIAL ICONS ===== */
.footer-social {
  display: flex;
  gap: 10px;
  margin-top: 18px;
  flex-wrap: wrap;
}
.social-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: rgba(255,255,255,0.08);
  color: rgba(255,255,255,0.75);
  transition: background 0.2s, color 0.2s, transform 0.2s;
  text-decoration: none;
}
.social-icon:hover {
  transform: translateY(-3px);
  text-decoration: none;
}
.social-youtube:hover  { background: #FF0000; color: #fff; }
.social-linkedin:hover { background: #0A66C2; color: #fff; }
.social-x:hover        { background: #14171A; color: #fff; }
.social-facebook:hover { background: #1877F2; color: #fff; }