/* ============================================================
   KEPTRON ELECTRONICS — Modern Design System
   Brand: #012a4a (deep navy) · #02538b (blue) · #eb3d01 (orange-red)
   ============================================================ */

:root {
  --brand-dark:         #012a4a;
  --brand-mid:          #02538b;
  --brand-light:        #1976d2;
  --brand-accent:       #eb3d01;
  --brand-accent-hover: #c93300;

  --bg:           #f0f5ff;
  --surface:      #ffffff;
  --text:         #0d1b2a;
  --text-muted:   #64748b;
  --text-light:   #94a3b8;
  --border:       #e2e8f0;
  --green:        #16a34a;

  --shadow-xs: 0 1px 3px rgba(1,42,74,0.06);
  --shadow-sm: 0 2px 8px rgba(1,42,74,0.08), 0 1px 3px rgba(1,42,74,0.04);
  --shadow-md: 0 4px 20px rgba(1,42,74,0.10), 0 1px 4px rgba(1,42,74,0.06);
  --shadow-lg: 0 16px 48px rgba(1,42,74,0.14), 0 4px 14px rgba(1,42,74,0.07);
  --shadow-accent: 0 8px 24px rgba(235,61,1,0.30);

  --r-sm:   8px;
  --r-md:   14px;
  --r-lg:   20px;
  --r-pill: 50px;
}

/* ── RESET & BASE ─────────────────────────────────────────── */
* { box-sizing: border-box; }

body {
  margin: 0;
  font-family: "Segoe UI", -apple-system, BlinkMacSystemFont, Arial, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

.container {
  width: min(1120px, 92%);
  margin: 0 auto;
}

h1 { margin: 0; font-size: 1.5rem; }
h2, h3, h4 { color: var(--brand-dark); }

/* ── HEADER ───────────────────────────────────────────────── */
.main-header {
  background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-mid) 100%);
  box-shadow: 0 2px 20px rgba(1,42,74,0.30);
  position: sticky;
  top: 0;
  z-index: 1000;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 0;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

.logo-section {
  display: flex;
  align-items: center;
  gap: 14px;
}

.logo {
  width: 76px;
  height: 76px;
  border-radius: 10px;
  object-fit: contain;
  background: #fff;
  padding: 6px;
}

.brand-info h1 {
  font-size: 1.45rem;
  color: #fff;
  letter-spacing: -0.3px;
  font-weight: 700;
}

.brand-info p {
  margin: 0;
  color: rgba(255,255,255,0.65);
  font-size: 0.83rem;
}

.badge {
  background: var(--brand-accent);
  color: #fff;
  padding: 7px 16px;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.6px;
  margin-left: auto;
}

/* ── NAVIGATION ───────────────────────────────────────────── */
.main-nav { background: transparent; padding: 0; }

.nav-list {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  align-items: center;
}

.nav-link {
  display: block;
  padding: 14px 16px;
  color: rgba(255,255,255,0.80);
  text-decoration: none;
  font-weight: 500;
  font-size: 0.92rem;
  transition: all 0.22s ease;
  border-bottom: 2px solid transparent;
  white-space: nowrap;
}

.nav-link:hover {
  color: #fff;
  border-bottom-color: var(--brand-accent);
}

.quote-btn {
  background: var(--brand-accent) !important;
  color: #fff !important;
  border-radius: var(--r-pill);
  margin-left: 8px;
  padding: 9px 20px;
  font-weight: 700;
  border-bottom: none !important;
  box-shadow: 0 3px 10px rgba(235,61,1,0.35);
}

.quote-btn:hover {
  background: var(--brand-accent-hover) !important;
  transform: translateY(-1px);
  box-shadow: var(--shadow-accent) !important;
}

/* ── DROPDOWN ─────────────────────────────────────────────── */
.dropdown { position: relative; }
.dropdown-toggle { cursor: pointer; }

.dropdown-menu {
  position: absolute;
  top: calc(100% + 6px);
  left: 0;
  background: var(--surface);
  min-width: 230px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--r-md);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-8px);
  transition: all 0.25s ease;
  z-index: 1001;
  border: 1px solid var(--border);
  overflow: hidden;
}

.dropdown:hover .dropdown-menu {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.dropdown-menu li { position: relative; }

.dropdown-menu a {
  display: block;
  padding: 11px 18px;
  color: var(--text);
  text-decoration: none;
  font-size: 0.90rem;
  transition: all 0.18s ease;
  border-bottom: 1px solid rgba(226,232,240,0.5);
}

.dropdown-menu a:hover {
  background: rgba(235,61,1,0.07);
  color: var(--brand-accent);
  padding-left: 22px;
}

.dropdown-menu li:last-child a { border-bottom: none; }

.dropdown-submenu .submenu {
  position: absolute;
  top: 0;
  left: 100%;
  background: var(--surface);
  min-width: 170px;
  box-shadow: var(--shadow-lg);
  border-radius: var(--r-md);
  opacity: 0;
  visibility: hidden;
  transform: translateX(-8px);
  transition: all 0.25s ease;
  z-index: 1002;
  border: 1px solid var(--border);
  overflow: hidden;
}

.dropdown-submenu:hover .submenu {
  opacity: 1;
  visibility: visible;
  transform: translateX(0);
}

/* ── HERO ─────────────────────────────────────────────────── */
.hero-section {
  background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-mid) 55%, #0d6eaf 100%);
  padding: 72px 48px 56px;
  border-radius: var(--r-lg);
  margin: 28px 0;
  text-align: center;
  position: relative;
  overflow: hidden;
  color: #fff;
}

.hero-section::before {
  content: '';
  position: absolute;
  top: -100px; right: -100px;
  width: 380px; height: 380px;
  background: radial-gradient(circle, rgba(235,61,1,0.20) 0%, transparent 65%);
  pointer-events: none;
}

.hero-section::after {
  content: '';
  position: absolute;
  bottom: -80px; left: -80px;
  width: 280px; height: 280px;
  background: radial-gradient(circle, rgba(255,255,255,0.07) 0%, transparent 65%);
  pointer-events: none;
}

.hero-content { position: relative; z-index: 1; }

.hero-content h2 {
  font-size: 2.6rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: #fff;
  margin: 0 0 16px;
  line-height: 1.2;
}

.hero-content h2 span { color: #ffa07a; }

.hero-content p {
  font-size: 1.1rem;
  color: rgba(255,255,255,0.78);
  margin-bottom: 32px;
}

.cta-buttons {
  display: flex;
  gap: 14px;
  justify-content: center;
  margin-bottom: 52px;
  flex-wrap: wrap;
}

.hero-features {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
  position: relative;
  z-index: 1;
}

.hero-features .feature-item {
  text-align: center;
  padding: 22px 18px;
  border-radius: var(--r-md);
  background: rgba(255,255,255,0.10);
  border: 1px solid rgba(255,255,255,0.14);
  backdrop-filter: blur(8px);
  transition: all 0.3s ease;
}

.hero-features .feature-item:hover {
  background: rgba(255,255,255,0.16);
  transform: translateY(-3px);
}

.hero-features .feature-item h3 {
  margin: 0 0 6px;
  color: #fff;
  font-size: 1rem;
  font-weight: 700;
}

.hero-features .feature-item p {
  margin: 0;
  color: rgba(255,255,255,0.72);
  font-size: 0.84rem;
}

/* ── BUTTONS ──────────────────────────────────────────────── */
.btn-primary, .btn-secondary, .btn-details {
  padding: 12px 26px;
  border-radius: var(--r-pill);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.92rem;
  transition: all 0.25s ease;
  display: inline-block;
  cursor: pointer;
  border: none;
  font-family: inherit;
  line-height: 1.4;
}

.btn-primary {
  background: var(--brand-accent);
  color: #fff;
  box-shadow: 0 4px 14px rgba(235,61,1,0.28);
}

.btn-primary:hover {
  background: var(--brand-accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(235,61,1,0.40);
}

.btn-secondary {
  background: rgba(255,255,255,0.13);
  color: #fff;
  border: 1.5px solid rgba(255,255,255,0.38);
  backdrop-filter: blur(4px);
}

.btn-secondary:hover {
  background: rgba(255,255,255,0.22);
  border-color: rgba(255,255,255,0.6);
  transform: translateY(-2px);
}

.btn-details {
  background: transparent;
  color: var(--brand-mid);
  border: 1.5px solid var(--brand-mid);
  padding: 10px 20px;
  font-size: 0.85rem;
}

.btn-details:hover {
  background: var(--brand-mid);
  color: #fff;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(2,83,139,0.25);
}

/* ── PRODUCT CATEGORIES (homepage) ───────────────────────── */
.product-categories {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 52px 44px;
  margin: 24px 0;
  box-shadow: var(--shadow-md);
}

.product-categories h2 {
  text-align: center;
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 10px;
}

.category-intro {
  text-align: center;
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 44px;
}

.category-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 22px;
}

.category-card {
  text-align: center;
  padding: 36px 24px;
  border-radius: var(--r-lg);
  background: var(--bg);
  border: 1.5px solid transparent;
  transition: all 0.32s ease;
  position: relative;
  overflow: hidden;
}

.category-card::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--brand-mid), var(--brand-accent));
  opacity: 0;
  transition: opacity 0.3s ease;
}

.category-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  background: var(--surface);
}

.category-card:hover::before { opacity: 1; }

.category-icon {
  font-size: 2.4rem;
  margin-bottom: 18px;
  display: block;
}

.category-card h3 {
  margin: 0 0 10px;
  color: var(--brand-dark);
  font-size: 1.15rem;
  font-weight: 700;
}

.category-card p {
  color: var(--text-muted);
  margin-bottom: 18px;
  font-size: 0.90rem;
}

/* category-features used as <ul> inside category cards */
ul.category-features {
  list-style: none;
  padding: 0;
  margin: 0 0 22px;
  text-align: left;
}

ul.category-features li {
  padding: 5px 0;
  color: var(--text);
  font-size: 0.86rem;
  position: relative;
  padding-left: 20px;
}

ul.category-features li::before {
  content: "✓";
  position: absolute;
  left: 0;
  color: var(--green);
  font-weight: bold;
}

.category-link {
  color: var(--brand-mid);
  text-decoration: none;
  font-weight: 700;
  font-size: 0.90rem;
  transition: color 0.2s;
}

.category-link:hover { color: var(--brand-accent); }

/* ── ABOUT SECTION ────────────────────────────────────────── */
.about-section {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 52px 44px;
  margin: 24px 0;
  box-shadow: var(--shadow-md);
}

.about-section h2 {
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 0;
}

.about-content {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
  margin-top: 30px;
}

#welcome-text {
  color: var(--text-muted);
  font-size: 0.97rem;
  line-height: 1.7;
  margin-bottom: 24px;
}

.company-values {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 18px 20px;
  background: var(--bg);
  border-radius: var(--r-md);
  border-left: 4px solid var(--brand-accent);
  transition: all 0.28s ease;
}

.value-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-sm);
  background: #fff;
}

.value-icon { font-size: 1.9rem; flex-shrink: 0; line-height: 1; }

.value-item h3 {
  margin: 0 0 4px;
  color: var(--brand-dark);
  font-size: 0.97rem;
  font-weight: 700;
}

.value-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

.company-stats h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--brand-dark);
  margin-bottom: 18px;
}

.glimpse {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 12px;
}

.kv {
  background: var(--bg);
  border: 1px solid var(--border);
  padding: 16px;
  border-radius: var(--r-md);
  font-size: 0.88rem;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.kv:hover {
  box-shadow: var(--shadow-sm);
  border-color: rgba(2,83,139,0.25);
}

.kv strong {
  display: block;
  color: var(--text-muted);
  font-size: 0.74rem;
  text-transform: uppercase;
  letter-spacing: 0.7px;
  margin-bottom: 5px;
  font-weight: 600;
}

/* ── TESTIMONIALS ─────────────────────────────────────────── */
.testimonials-section {
  background: linear-gradient(135deg, var(--brand-dark) 0%, #024f85 60%, var(--brand-mid) 100%);
  border-radius: var(--r-lg);
  padding: 60px 44px;
  margin: 24px 0;
  position: relative;
  overflow: hidden;
}

.testimonials-section::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 300px; height: 300px;
  background: radial-gradient(circle, rgba(235,61,1,0.12) 0%, transparent 65%);
}

.testimonials-section h2 {
  text-align: center;
  color: #fff;
  font-size: 1.9rem;
  font-weight: 800;
  margin-bottom: 8px;
  position: relative;
}

.section-subtitle {
  text-align: center;
  color: rgba(255,255,255,0.65);
  margin-bottom: 44px;
  font-size: 0.97rem;
  position: relative;
}

.testimonials-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
  list-style: none;
  padding: 0;
  margin: 0;
  position: relative;
}

.testimonial-card {
  background: rgba(255,255,255,0.09);
  backdrop-filter: blur(12px);
  border: 1px solid rgba(255,255,255,0.14);
  padding: 30px 26px 24px;
  border-radius: var(--r-md);
  position: relative;
  transition: all 0.3s ease;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.testimonial-card:hover {
  background: rgba(255,255,255,0.15);
  transform: translateY(-5px);
  box-shadow: 0 16px 40px rgba(1,42,74,0.35);
}

.testimonial-quote-mark {
  font-size: 4.5rem;
  color: var(--brand-accent);
  line-height: 0.8;
  font-family: Georgia, serif;
  opacity: 0.55;
  position: absolute;
  top: 14px;
  left: 18px;
}

.testimonial-text {
  font-style: italic;
  color: rgba(255,255,255,0.88);
  line-height: 1.72;
  font-size: 0.94rem;
  padding-top: 26px;
}

.testimonial-stars {
  color: #fbbf24;
  font-size: 1rem;
  letter-spacing: 2px;
}

.testimonial-author {
  border-top: 1px solid rgba(255,255,255,0.14);
  padding-top: 14px;
}

.testimonial-name {
  font-weight: 700;
  color: #fff;
  font-size: 0.95rem;
}

.testimonial-role {
  color: rgba(255,255,255,0.55);
  font-size: 0.80rem;
  margin-top: 2px;
}

/* ── CONTACT ──────────────────────────────────────────────── */
.contact-section {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 52px 44px;
  margin: 24px 0;
  box-shadow: var(--shadow-md);
}

.contact-section h2 {
  text-align: center;
  font-size: 1.9rem;
  font-weight: 800;
  letter-spacing: -0.3px;
  margin-bottom: 36px;
}

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 52px;
}

.contact-info h3 {
  margin-bottom: 22px;
  color: var(--brand-dark);
  font-size: 1.15rem;
  font-weight: 700;
}

.contact-info p {
  margin-bottom: 14px;
  color: var(--text);
  font-size: 0.93rem;
}

.contact-info a {
  color: var(--brand-mid);
  text-decoration: none;
  font-weight: 500;
  transition: color 0.2s;
}

.contact-info a:hover { color: var(--brand-accent); }

.quote-form {
  background: var(--bg);
  padding: 30px;
  border-radius: var(--r-md);
  border: 1px solid var(--border);
}

.quote-form h3 {
  margin-bottom: 22px;
  color: var(--brand-dark);
  font-size: 1.1rem;
  font-weight: 700;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  padding: 12px 16px;
  margin-bottom: 14px;
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  font-family: inherit;
  font-size: 0.92rem;
  color: var(--text);
  background: var(--surface);
  transition: border-color 0.22s, box-shadow 0.22s;
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  outline: none;
  border-color: var(--brand-mid);
  box-shadow: 0 0 0 3px rgba(2,83,139,0.10);
}

.quote-form button {
  width: 100%;
  padding: 14px;
  background: var(--brand-accent);
  color: #fff;
  border: none;
  border-radius: var(--r-pill);
  font-weight: 700;
  font-size: 0.97rem;
  cursor: pointer;
  font-family: inherit;
  transition: all 0.25s ease;
  box-shadow: 0 4px 14px rgba(235,61,1,0.28);
}

.quote-form button:hover {
  background: var(--brand-accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 8px 22px rgba(235,61,1,0.40);
}

/* ── FOOTER ───────────────────────────────────────────────── */
footer {
  margin-top: 32px;
  background: var(--brand-dark);
  color: rgba(255,255,255,0.60);
  padding: 22px 0;
  font-size: 0.84rem;
  text-align: center;
}

footer a { color: rgba(255,255,255,0.60); text-decoration: none; transition: color 0.2s; }
footer a:hover { color: #fff; }

/* ── PAGE HEADER (product pages) ──────────────────────────── */
.page-header {
  text-align: center;
  padding: 60px 20px 44px;
}

.page-header h1 {
  font-size: 2.4rem;
  font-weight: 800;
  letter-spacing: -0.5px;
  color: var(--brand-dark);
  margin-bottom: 14px;
}

.page-header p {
  font-size: 1.07rem;
  color: var(--text-muted);
  max-width: 660px;
  margin: 0 auto;
}

/* ── TAB NAVIGATION ───────────────────────────────────────── */
.products-grid { margin-bottom: 6px; }

.tab-container {
  background: var(--surface);
  border-radius: var(--r-lg);
  box-shadow: var(--shadow-md);
  overflow: hidden;
}

.tab-nav {
  display: flex;
  background: var(--bg);
  border-bottom: 2px solid var(--border);
  overflow-x: auto;
  scrollbar-width: none;
}

.tab-nav::-webkit-scrollbar { display: none; }

.tab-btn {
  padding: 16px 24px;
  border: none;
  background: transparent;
  color: var(--text-muted);
  font-weight: 600;
  font-size: 0.88rem;
  cursor: pointer;
  border-bottom: 3px solid transparent;
  margin-bottom: -2px;
  white-space: nowrap;
  transition: all 0.2s ease;
  font-family: inherit;
}

.tab-btn:hover { color: var(--brand-dark); background: rgba(2,83,139,0.04); }

.tab-btn.active {
  color: var(--brand-accent);
  border-bottom-color: var(--brand-accent);
  background: var(--surface);
}

.tab-content { padding: 28px; }

/* ── PRODUCT CARDS ────────────────────────────────────────── */
.cards-products {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.card-product {
  display: grid;
  grid-template-columns: 280px 1fr;
  border-radius: var(--r-md);
  overflow: hidden;
  background: var(--surface);
  border: 1px solid var(--border);
  transition: all 0.30s ease;
}

.card-product:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(2,83,139,0.18);
}

.card-product-media {
  background: var(--bg);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  min-height: 230px;
}

.card-product-media img {
  width: 100%;
  height: 100%;
  min-height: 230px;
  object-fit: contain;
  display: block;
  transition: transform 0.40s ease;
}

.card-product:hover .card-product-media img { transform: scale(1.05); }

.card-product-body {
  padding: 26px 28px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.product-title {
  margin: 0;
  font-size: 1.13rem;
  font-weight: 700;
  color: var(--brand-dark);
  line-height: 1.3;
}

.product-specs {
  display: flex;
  flex-wrap: wrap;
  gap: 7px;
}

.spec-pill {
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  padding: 4px 11px;
  border-radius: var(--r-pill);
  font-size: 0.77rem;
  font-weight: 500;
  white-space: nowrap;
  transition: all 0.2s;
}

.spec-pill:hover {
  background: rgba(2,83,139,0.08);
  border-color: rgba(2,83,139,0.25);
  color: var(--brand-mid);
}

.product-price {
  margin: 0;
  font-size: 0.90rem;
  color: var(--text-muted);
}

.product-price .price-label {
  color: var(--brand-mid);
  font-weight: 700;
  margin-right: 4px;
}

.price-hint {
  color: var(--text-light);
  font-size: 0.80rem;
}

.product-actions {
  display: flex;
  gap: 12px;
  margin-top: auto;
  flex-wrap: wrap;
  align-items: center;
}

/* ── CATEGORY FEATURES section (product pages) ────────────── */
section.category-features {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 44px 40px;
  margin: 20px 0;
  box-shadow: var(--shadow-md);
}

section.category-features h2 {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 32px;
}

.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.features-grid .feature-item {
  padding: 24px;
  border-radius: var(--r-md);
  background: var(--bg);
  border-left: 4px solid var(--brand-mid);
  transition: all 0.28s ease;
}

.features-grid .feature-item:hover {
  transform: translateX(5px);
  box-shadow: var(--shadow-sm);
  background: var(--surface);
}

.features-grid .feature-item h3 {
  margin: 0 0 8px;
  color: var(--brand-dark);
  font-size: 0.97rem;
  font-weight: 700;
}

.features-grid .feature-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.86rem;
  line-height: 1.6;
}

/* ── APPLICATIONS ─────────────────────────────────────────── */
.applications {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 44px 40px;
  margin: 20px 0;
  box-shadow: var(--shadow-md);
}

.applications h2 {
  text-align: center;
  font-size: 1.75rem;
  font-weight: 800;
  margin-bottom: 32px;
}

.applications-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 18px;
}

.application-item {
  padding: 22px;
  border-radius: var(--r-md);
  background: var(--bg);
  border: 1px solid var(--border);
  transition: all 0.28s ease;
}

.application-item:hover {
  border-color: rgba(235,61,1,0.35);
  box-shadow: var(--shadow-sm);
  transform: translateY(-3px);
}

.application-item h3 {
  margin: 0 0 7px;
  color: var(--brand-dark);
  font-size: 0.97rem;
  font-weight: 700;
}

.application-item p {
  margin: 0;
  color: var(--text-muted);
  font-size: 0.86rem;
}

/* ── CONTACT CTA ──────────────────────────────────────────── */
.contact-cta {
  text-align: center;
  padding: 60px 44px;
  background: linear-gradient(135deg, var(--brand-dark) 0%, var(--brand-mid) 100%);
  border-radius: var(--r-lg);
  margin: 24px 0;
  color: #fff;
  position: relative;
  overflow: hidden;
}

.contact-cta::before {
  content: '';
  position: absolute;
  top: -70px; right: -70px;
  width: 260px; height: 260px;
  background: radial-gradient(circle, rgba(235,61,1,0.16) 0%, transparent 65%);
}

.contact-cta h2 { color: #fff; margin-bottom: 12px; position: relative; font-size: 1.75rem; font-weight: 800; }
.contact-cta p { color: rgba(255,255,255,0.78); margin-bottom: 28px; position: relative; }
.contact-cta .btn-primary {
  background: #fff;
  color: var(--brand-dark);
  box-shadow: none;
  position: relative;
  font-weight: 700;
}
.contact-cta .btn-primary:hover {
  background: var(--brand-accent);
  color: #fff;
  box-shadow: var(--shadow-accent);
}

/* ── PRODUCT MATRIX PAGE ──────────────────────────────────── */
.product-matrix-section {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 36px;
  margin: 20px 0;
  box-shadow: var(--shadow-md);
}

.product-matrix-section h2 {
  text-align: center;
  margin-bottom: 20px;
}

/* generic section fallback (product-matrix.html) */
section {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 28px;
  margin: 18px 0;
  box-shadow: var(--shadow-md);
}

.matrix {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.matrix-card {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 18px;
  background: var(--bg);
}

.matrix-card ul { margin: 0; padding-left: 18px; }

.matrix-intro {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 0 0 16px;
  line-height: 1.5;
}

.matrix-dropdowns .matrix-card {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.matrix-label {
  font-weight: 700;
  color: var(--brand-dark);
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.4px;
}

.matrix-select {
  width: 100%;
  padding: 10px 14px;
  font-size: 0.92rem;
  border: 1.5px solid var(--border);
  border-radius: var(--r-sm);
  background: var(--surface);
  color: var(--text);
  cursor: pointer;
  font-family: inherit;
  transition: border-color 0.2s;
}

.matrix-select:focus {
  outline: none;
  border-color: var(--brand-mid);
  box-shadow: 0 0 0 3px rgba(2,83,139,0.09);
}

.card-highlight { animation: cardPulse 1.2s ease-out 1; }

@keyframes cardPulse {
  from { box-shadow: 0 0 0 4px rgba(235,61,1,0.55); }
  to   { box-shadow: var(--shadow-md); }
}

.certs { margin-top: 12px; color: var(--brand-mid); font-weight: 600; font-size: 0.9rem; }

.price-note {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin: 0 0 16px;
}

.cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.card {
  border: 1px solid var(--border);
  border-radius: var(--r-md);
  padding: 14px;
  background: var(--surface);
}

/* ── COMPARISON TABLE ─────────────────────────────────────── */
.comparison-table {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 40px;
  margin: 20px 0;
  box-shadow: var(--shadow-md);
}

.comparison-table h2 { text-align: center; margin-bottom: 28px; font-weight: 800; }

.table-container { overflow-x: auto; }

.product-table { width: 100%; border-collapse: collapse; }

.product-table th,
.product-table td {
  padding: 13px 16px;
  text-align: left;
  border-bottom: 1px solid var(--border);
  font-size: 0.91rem;
}

.product-table th {
  background: var(--brand-dark);
  color: #fff;
  font-weight: 600;
}

.product-table tr:hover { background: rgba(235,61,1,0.03); }
.product-table a { color: var(--brand-mid); text-decoration: none; font-weight: 600; }
.product-table a:hover { color: var(--brand-accent); }

/* ── SELECTION GUIDE ──────────────────────────────────────── */
.selection-guide {
  background: var(--surface);
  border-radius: var(--r-lg);
  padding: 44px 40px;
  margin: 20px 0;
  box-shadow: var(--shadow-md);
}

.selection-guide h2 { text-align: center; margin-bottom: 38px; font-weight: 800; }

.guide-steps {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
}

.step { text-align: center; }

.step-number {
  width: 46px;
  height: 46px;
  background: var(--brand-accent);
  color: #fff;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  margin: 0 auto 18px;
  font-size: 1.1rem;
  box-shadow: 0 4px 14px rgba(235,61,1,0.30);
}

.step-content h3 { margin: 0 0 6px; color: var(--brand-dark); font-size: 0.93rem; font-weight: 700; }
.step-content p  { margin: 0; color: var(--text-muted); font-size: 0.84rem; line-height: 1.5; }

/* ── MODAL ────────────────────────────────────────────────── */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(1,42,74,0.65);
  backdrop-filter: blur(6px);
  -webkit-backdrop-filter: blur(6px);
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.28s ease, visibility 0.28s ease;
}

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

.modal-box {
  background: var(--surface);
  border-radius: var(--r-lg);
  width: 100%;
  max-width: 880px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 24px 80px rgba(1,42,74,0.30);
  transform: translateY(24px) scale(0.97);
  transition: transform 0.30s ease;
  scrollbar-width: thin;
}

.modal-overlay.active .modal-box {
  transform: translateY(0) scale(1);
}

.modal-close {
  position: absolute;
  top: 14px;
  right: 14px;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: var(--bg);
  border: 1px solid var(--border);
  color: var(--text);
  font-size: 1rem;
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.22s;
  z-index: 2;
  font-family: inherit;
  line-height: 1;
}

.modal-close:hover {
  background: var(--brand-accent);
  color: #fff;
  border-color: var(--brand-accent);
  transform: rotate(90deg);
}

.modal-inner {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
}

.modal-img-wrap {
  background: var(--bg);
  border-radius: var(--r-lg) 0 0 var(--r-lg);
  overflow: hidden;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 360px;
}

.modal-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
  padding: 24px;
}

.modal-body {
  padding: 38px 34px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}

.modal-badge {
  display: inline-block;
  background: rgba(2,83,139,0.10);
  color: var(--brand-mid);
  padding: 5px 14px;
  border-radius: var(--r-pill);
  font-size: 0.77rem;
  font-weight: 700;
  letter-spacing: 0.5px;
  align-self: flex-start;
  text-transform: uppercase;
}

.modal-body h2 {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--brand-dark);
  line-height: 1.3;
}

.modal-price {
  font-size: 0.90rem;
  color: var(--text-muted);
  padding: 10px 14px;
  background: var(--bg);
  border-radius: var(--r-sm);
  border: 1px solid var(--border);
}

.modal-price span   { font-weight: 700; color: var(--brand-mid); margin-right: 4px; }
.modal-price strong { color: var(--text); }
.modal-price em     { color: var(--text-light); font-style: normal; font-size: 0.80rem; margin-left: 4px; }

.modal-specs {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
  flex: 1;
}

.modal-specs li {
  padding: 9px 14px;
  background: var(--bg);
  border-radius: var(--r-sm);
  font-size: 0.86rem;
  color: var(--text);
  border-left: 3px solid var(--brand-accent);
  transition: background 0.18s;
}

.modal-specs li:hover { background: rgba(235,61,1,0.06); }

.modal-cta {
  text-align: center;
  width: 100%;
  margin-top: 4px;
}

/* ── MISC ─────────────────────────────────────────────────── */
.green-note { color: var(--green); font-weight: 600; }
.top { background: linear-gradient(135deg, var(--brand-dark), var(--brand-mid)); color: #fff; padding: 14px 0; }
.top-inner { display: flex; align-items: center; gap: 16px; }

/* ── RESPONSIVE ───────────────────────────────────────────── */
@media (max-width: 1024px) {
  .features-grid,
  .applications-grid { grid-template-columns: 1fr; }

  .guide-steps { grid-template-columns: repeat(2, 1fr); }

  .category-grid,
  .contact-grid,
  .about-content { grid-template-columns: 1fr; }

  .hero-features { grid-template-columns: 1fr; gap: 12px; }

  .product-categories,
  .about-section,
  .contact-section { padding: 36px 28px; }
}

@media (max-width: 900px) {
  .matrix, .cards, .glimpse { grid-template-columns: 1fr; }

  .card-product { grid-template-columns: 1fr; }
  .card-product-media { min-height: 200px; }

  .modal-inner { grid-template-columns: 1fr; }
  .modal-img-wrap {
    border-radius: var(--r-lg) var(--r-lg) 0 0;
    min-height: 220px;
  }

  .header-top { flex-wrap: wrap; }
  .badge { margin-left: 0; margin-top: 6px; }

  .nav-list { flex-direction: column; align-items: stretch; }

  .dropdown-menu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: rgba(235,61,1,0.05);
    display: none;
    border-radius: 0;
  }

  .submenu {
    position: static;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border: none;
    background: rgba(2,83,139,0.05);
    margin-left: 14px;
    border-radius: 0;
  }

  .cta-buttons { flex-direction: column; align-items: center; }
  .testimonials-grid { grid-template-columns: 1fr; }
  .hero-section { padding: 52px 24px 44px; }
  .hero-content h2 { font-size: 1.85rem; }
}

@media (max-width: 768px) {
  .page-header h1 { font-size: 1.8rem; }
  .guide-steps { grid-template-columns: 1fr; }
  .table-container { font-size: 0.85rem; }
  .product-actions { flex-direction: column; }
  .modal-box { max-height: 95vh; border-radius: var(--r-md); }
  .tab-btn { padding: 12px 16px; font-size: 0.82rem; }
}