/* ==========================================================================
   Natal Stainless Steel - Ultra-Aesthetic Premium Industrial Design System
   (Fully Mobile-Optimized, Cohesive & Zero-Overflow)
   ========================================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500;600&family=Plus+Jakarta+Sans:wght@500;600;700;800&display=swap');

:root {
  /* Ultra-Aesthetic Titanium Theme */
  --bg-main: #0B0F17;
  --bg-card: #121824;
  --bg-card-hover: #182232;
  --bg-elevated: #1C2638;
  --bg-topbar: #070A10;
  --bg-header: rgba(11, 15, 23, 0.94);
  
  /* Metallic & Platinum Accents */
  --platinum-50: #FFFFFF;
  --platinum-100: #F8FAFC;
  --platinum-200: #E2E8F0;
  --platinum-300: #CBD5E1;
  --platinum-400: #94A3B8;
  --platinum-500: #64748B;
  --platinum-600: #475569;
  
  /* Refined Sapphire Blue Accents */
  --brand-blue: #2563EB;
  --brand-blue-light: #3B82F6;
  --brand-blue-hover: #1D4ED8;
  --brand-blue-subtle: rgba(37, 99, 235, 0.12);
  --brand-blue-border: rgba(59, 130, 246, 0.28);
  
  --brand-cyan: #0EA5E9;
  --brand-emerald: #10B981;
  --brand-gold: #F59E0B;
  
  /* Text Tokens */
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --text-subtle: #64748B;
  
  /* Borders & Dividers */
  --border-subtle: rgba(255, 255, 255, 0.08);
  --border-medium: rgba(255, 255, 255, 0.14);
  --border-active: rgba(59, 130, 246, 0.5);
  
  /* Fonts */
  --font-heading: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  
  /* Shadows */
  --shadow-sm: 0 2px 6px rgba(0, 0, 0, 0.25);
  --shadow-md: 0 10px 30px rgba(0, 0, 0, 0.35);
  --shadow-lg: 0 20px 50px rgba(0, 0, 0, 0.5);
  --shadow-blue-glow: 0 0 25px rgba(37, 99, 235, 0.25);
  
  --radius-sm: 6px;
  --radius-md: 10px;
  --radius-lg: 14px;
  --radius-xl: 18px;
  --radius-full: 9999px;
  
  --transition-fast: 0.18s ease;
  --transition-normal: 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Reset & Box-Sizing */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
  -webkit-tap-highlight-color: transparent;
}

html, body {
  width: 100%;
  max-width: 100vw;
  overflow-x: hidden;
  position: relative;
}

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

body {
  background-color: var(--bg-main);
  color: var(--platinum-300);
  font-family: var(--font-body);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body::before {
  content: '';
  position: fixed;
  top: 0;
  left: 0;
  width: 100vw;
  height: 100vh;
  background: 
    radial-gradient(circle at 12% 15%, rgba(37, 99, 235, 0.08) 0%, transparent 40%),
    radial-gradient(circle at 88% 85%, rgba(14, 165, 233, 0.06) 0%, transparent 45%);
  pointer-events: none;
  z-index: -1;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  color: var(--text-main);
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.25;
  letter-spacing: -0.02em;
  overflow-wrap: break-word;
  word-break: normal;
  hyphens: none;
}

h1 { font-size: clamp(1.85rem, 4.5vw, 3.4rem); font-weight: 800; }
h2 { font-size: clamp(1.4rem, 3vw, 2.3rem); }
h3 { font-size: clamp(1.15rem, 2vw, 1.6rem); }
h4 { font-size: 1.1rem; }
h5 { font-size: 1rem; }
h6 { font-size: 0.85rem; text-transform: uppercase; letter-spacing: 0.08em; }

p {
  margin-bottom: 1rem;
  overflow-wrap: break-word;
  word-break: normal;
}
p:last-child { margin-bottom: 0; }

a {
  color: var(--brand-blue-light);
  text-decoration: none;
  transition: all var(--transition-fast);
}
a:hover { color: #FFFFFF; }

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

/* Containers */
.container {
  width: 100%;
  max-width: 1240px;
  margin: 0 auto;
  padding: 0 1.5rem;
}
.container-sm { max-width: 900px; }
.container-lg { max-width: 1360px; }

.section { padding: 4.5rem 0; position: relative; }
.section-sm { padding: 2.75rem 0; }
.section-dark { background-color: #0E131E; }
.section-card-bg { background-color: var(--bg-card); }

/* Responsive Utility Grids */
.responsive-grid-2 {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2.5rem;
  align-items: center;
}

.responsive-grid-2-equal {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2rem;
  align-items: center;
}

/* Section Header */
.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto 3rem auto;
}
.section-header.text-left { text-align: left; margin-left: 0; }

.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  background: var(--brand-blue-subtle);
  border: 1px solid var(--brand-blue-border);
  color: #60A5FA;
  font-family: var(--font-mono);
  font-size: 0.75rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: 0.75rem;
}

.section-title { margin-bottom: 0.75rem; }
.section-subtitle {
  color: var(--text-muted);
  font-size: 1rem;
  line-height: 1.6;
}

.text-gradient-steel {
  background: linear-gradient(135deg, #FFFFFF 0%, #E2E8F0 50%, #94A3B8 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

/* ==========================================================================
   Top Bar
   ========================================================================== */

.top-bar {
  background: var(--bg-topbar);
  border-bottom: 1px solid var(--border-subtle);
  min-height: 38px;
  display: flex;
  align-items: center;
  font-size: 0.8rem;
  color: var(--platinum-400);
}

.top-bar-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  width: 100%;
  padding: 0.35rem 0;
}

.top-announcement {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  font-size: 0.8rem;
  color: var(--platinum-300);
  white-space: nowrap;
}

.badge-branch-pill {
  display: inline-flex;
  align-items: center;
  white-space: nowrap;
  background: rgba(37, 99, 235, 0.18);
  border: 1px solid rgba(59, 130, 246, 0.4);
  color: #93C5FD;
  padding: 0.18rem 0.55rem;
  border-radius: 9999px;
  font-size: 0.7rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.top-contacts-group {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  white-space: nowrap;
}

.top-contact-item {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  color: var(--platinum-300);
  font-family: var(--font-body);
  font-size: 0.8rem;
  font-weight: 500;
  white-space: nowrap;
  transition: color var(--transition-fast);
}

.top-contact-item span.city-label {
  color: var(--platinum-400);
  font-weight: 400;
}

.top-contact-item:hover { color: #FFFFFF; }

.top-divider {
  display: inline-block;
  width: 1px;
  height: 12px;
  background: var(--border-medium);
  margin: 0 0.15rem;
}

/* ==========================================================================
   Header & Navigation
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  background: var(--bg-header);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--border-subtle);
  transition: all var(--transition-normal);
}

.site-header.scrolled {
  background: rgba(11, 15, 23, 0.98);
  border-bottom-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.75rem 0;
}

.brand-logo-container {
  display: flex;
  align-items: center;
  text-decoration: none;
  flex-shrink: 0;
}

.exact-logo-img {
  height: 36px;
  width: auto;
  max-width: 260px;
  object-fit: contain;
  filter: drop-shadow(0 2px 6px rgba(0, 0, 0, 0.4));
  transition: transform var(--transition-fast);
}
.brand-logo-container:hover .exact-logo-img { transform: scale(1.02); }

.main-nav {
  display: flex;
  align-items: center;
  gap: 1.85rem;
}

.nav-link {
  color: var(--platinum-300);
  font-weight: 500;
  font-size: 0.9rem;
  padding: 0.4rem 0;
  position: relative;
  transition: color var(--transition-fast);
}

.nav-link:hover, .nav-link.active { color: #FFFFFF; }
.nav-link::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--brand-blue-light);
  transition: width var(--transition-fast);
  border-radius: var(--radius-full);
}
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.mobile-toggle {
  display: none;
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  color: var(--text-main);
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
  line-height: 1;
  transition: all var(--transition-fast);
  flex-shrink: 0;
}
.mobile-toggle:hover, .mobile-toggle:active {
  background: var(--bg-elevated);
  border-color: var(--brand-blue-light);
}

/* ==========================================================================
   Buttons
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.45rem;
  padding: 0.65rem 1.25rem;
  min-height: 42px;
  border-radius: var(--radius-md);
  font-family: var(--font-heading);
  font-size: 0.88rem;
  font-weight: 600;
  text-align: center;
  cursor: pointer;
  transition: all var(--transition-normal);
  border: 1px solid transparent;
  max-width: 100%;
}

.btn-primary {
  background: linear-gradient(135deg, #1E40AF 0%, #2563EB 100%);
  color: #FFFFFF;
  border: 1px solid rgba(255, 255, 255, 0.15);
  box-shadow: 0 4px 14px rgba(37, 99, 235, 0.35);
}

.btn-primary:hover, .btn-primary:active {
  background: linear-gradient(135deg, #1D4ED8 0%, #3B82F6 100%);
  color: #FFFFFF;
  box-shadow: 0 6px 20px rgba(37, 99, 235, 0.5);
  transform: translateY(-2px);
}

.btn-secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--platinum-200);
  border: 1px solid var(--border-medium);
}

.btn-secondary:hover, .btn-secondary:active {
  background: rgba(255, 255, 255, 0.09);
  color: #FFFFFF;
  border-color: rgba(255, 255, 255, 0.25);
  transform: translateY(-2px);
}

.btn-cyan {
  background: linear-gradient(135deg, #0284C7 0%, #0EA5E9 100%);
  color: #FFFFFF;
  box-shadow: 0 4px 14px rgba(14, 165, 233, 0.3);
}

.btn-cyan:hover, .btn-cyan:active {
  background: linear-gradient(135deg, #0369A1 0%, #38BDF8 100%);
  transform: translateY(-2px);
}

.btn-whatsapp {
  background: #128C7E;
  color: #FFFFFF;
}
.btn-whatsapp:hover, .btn-whatsapp:active {
  background: #25D366;
  color: #FFFFFF;
  transform: translateY(-2px);
  box-shadow: 0 4px 15px rgba(37, 211, 102, 0.3);
}

.btn-outline-steel {
  background: transparent;
  color: var(--platinum-300);
  border: 1px solid var(--platinum-600);
}
.btn-outline-steel:hover, .btn-outline-steel:active {
  border-color: var(--brand-blue-light);
  color: #FFFFFF;
  background: var(--brand-blue-subtle);
}

.btn-sm { padding: 0.4rem 0.8rem; min-height: 36px; font-size: 0.8rem; }
.btn-lg { padding: 0.8rem 1.5rem; min-height: 46px; font-size: 0.95rem; }
.btn-block { width: 100%; }

/* ==========================================================================
   Hero Section
   ========================================================================== */

.hero {
  position: relative;
  padding: 4.5rem 0 3.5rem 0;
  background: 
    radial-gradient(circle at 80% 20%, rgba(37, 99, 235, 0.12) 0%, transparent 55%),
    radial-gradient(circle at 10% 70%, rgba(14, 165, 233, 0.08) 0%, transparent 45%),
    linear-gradient(180deg, var(--bg-main) 0%, #0E131E 100%);
  border-bottom: 1px solid var(--border-subtle);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 3rem;
  align-items: center;
}

.hero-badge-group {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
  margin-bottom: 1.15rem;
}

.badge-trust {
  display: inline-flex;
  align-items: center;
  gap: 0.35rem;
  padding: 0.28rem 0.7rem;
  border-radius: var(--radius-full);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border-medium);
  font-size: 0.76rem;
  color: var(--platinum-300);
  font-weight: 500;
  white-space: nowrap;
}

.badge-trust-highlight {
  background: var(--brand-blue-subtle);
  border-color: var(--brand-blue-border);
  color: #93C5FD;
}

.hero-title { margin-bottom: 1.15rem; }
.hero-lead {
  font-size: 1.02rem;
  line-height: 1.65;
  color: var(--platinum-300);
  margin-bottom: 1.75rem;
  max-width: 600px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-bottom: 2.25rem;
}

.hero-stats {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-subtle);
}

.stat-item { display: flex; flex-direction: column; }
.stat-number {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: 1.7rem;
  color: #FFFFFF;
  line-height: 1.1;
  background: linear-gradient(135deg, #FFFFFF 0%, #93C5FD 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
}

.stat-label {
  font-size: 0.74rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-top: 0.25rem;
}

/* Hero Dispatch Card */
.hero-visual-card {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 1.65rem;
  box-shadow: var(--shadow-md);
  position: relative;
}

.card-header-tag {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px solid var(--border-subtle);
}

.hero-visual-title {
  font-size: 1rem;
  font-weight: 700;
  color: #FFFFFF;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--brand-emerald);
  box-shadow: 0 0 8px var(--brand-emerald);
  display: inline-block;
}

.branch-quick-selector {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 0.45rem;
  margin-bottom: 1.15rem;
}

.branch-pill-btn {
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  color: var(--platinum-400);
  padding: 0.55rem 0.35rem;
  min-height: 38px;
  border-radius: var(--radius-sm);
  font-size: 0.75rem;
  font-weight: 600;
  cursor: pointer;
  text-align: center;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.branch-pill-btn.active, .branch-pill-btn:hover {
  background: var(--brand-blue);
  color: #FFFFFF;
  border-color: var(--brand-blue-light);
}

/* ==========================================================================
   Trust Bar
   ========================================================================== */

.trust-bar {
  background: #090D14;
  border-bottom: 1px solid var(--border-subtle);
  padding: 1.35rem 0;
}

.trust-bar-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.25rem;
  align-items: center;
}

.trust-item {
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.trust-icon-box {
  width: 42px;
  height: 42px;
  border-radius: var(--radius-md);
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #60A5FA;
  flex-shrink: 0;
}

.trust-item h4 {
  font-size: 0.88rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.1rem;
}

.trust-item p {
  font-size: 0.75rem;
  color: var(--text-muted);
  line-height: 1.3;
}

/* ==========================================================================
   Product Cards & Filter Tabs
   ========================================================================== */

.product-category-tabs {
  display: flex;
  gap: 0.45rem;
  justify-content: center;
  margin-bottom: 2.25rem;
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  padding-bottom: 0.5rem;
}
.product-category-tabs::-webkit-scrollbar { display: none; }

.cat-tab-btn {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  color: var(--platinum-400);
  padding: 0.5rem 1.1rem;
  min-height: 38px;
  border-radius: var(--radius-full);
  font-family: var(--font-heading);
  font-size: 0.825rem;
  font-weight: 600;
  cursor: pointer;
  transition: all var(--transition-fast);
  white-space: nowrap;
  flex-shrink: 0;
}

.cat-tab-btn:hover { color: #FFFFFF; border-color: var(--border-medium); }
.cat-tab-btn.active {
  background: var(--brand-blue);
  color: #FFFFFF;
  border-color: var(--brand-blue-light);
  box-shadow: 0 2px 8px rgba(37, 99, 235, 0.3);
}

.products-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem;
}

.product-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
  position: relative;
}

.product-card:hover {
  transform: translateY(-4px);
  border-color: var(--border-active);
  box-shadow: var(--shadow-md), var(--shadow-blue-glow);
  background: var(--bg-card-hover);
}

.product-card-badge {
  position: absolute;
  top: 0.85rem;
  right: 0.85rem;
  z-index: 2;
  background: rgba(11, 15, 23, 0.85);
  backdrop-filter: blur(6px);
  border: 1px solid var(--border-medium);
  padding: 0.2rem 0.55rem;
  border-radius: var(--radius-sm);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: #93C5FD;
  font-weight: 600;
}

.product-visual {
  height: 150px;
  background: linear-gradient(135deg, #0B0F17 0%, #161E2E 100%);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
  border-bottom: 1px solid var(--border-subtle);
}

.product-icon-svg {
  width: 60px;
  height: 60px;
  color: #60A5FA;
  transition: transform var(--transition-normal);
}

.product-card-body {
  padding: 1.35rem;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-card-title {
  font-size: 1.15rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.45rem;
}

.product-card-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
  line-height: 1.5;
  margin-bottom: 1.15rem;
  flex-grow: 1;
}

.product-specs-list {
  list-style: none;
  margin-bottom: 1.25rem;
  padding: 0.65rem 0.85rem;
  background: rgba(7, 10, 16, 0.5);
  border-radius: var(--radius-sm);
  border: 1px solid var(--border-subtle);
}

.product-spec-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.76rem;
  padding: 0.25rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}
.product-spec-row:last-child { border-bottom: none; }

.spec-key { color: var(--text-subtle); }
.spec-val { color: var(--platinum-200); font-family: var(--font-mono); font-weight: 500; }

.product-card-footer { display: flex; gap: 0.5rem; }

/* ==========================================================================
   Calculator Component (Seamless Cohesive Card)
   ========================================================================== */

.calculator-wrapper {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  overflow: hidden;
  box-shadow: var(--shadow-md);
  width: 100%;
}

.calc-nav-tabs {
  display: flex;
  border-bottom: 1px solid var(--border-subtle);
  background: var(--bg-card);
}

.calc-tab-item {
  flex: 1;
  min-width: 140px;
  padding: 0.95rem 1rem;
  min-height: 48px;
  background: none;
  border: none;
  color: var(--platinum-400);
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: 0.85rem;
  cursor: pointer;
  text-align: center;
  border-bottom: 2px solid transparent;
  transition: all var(--transition-fast);
  white-space: nowrap;
}

.calc-tab-item:hover { color: #FFFFFF; }
.calc-tab-item.active {
  color: #60A5FA;
  background: rgba(37, 99, 235, 0.08);
  border-bottom-color: var(--brand-blue-light);
}

/* Mobile Calculator Mode Dropdown (Seamless inside card) */
.calc-mobile-mode-wrap {
  display: none;
  background: var(--bg-card);
  padding: 1.25rem 1.25rem 0 1.25rem;
}

.calc-body {
  padding: 1.75rem 2rem 2rem 2rem;
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 2rem;
}

.calc-grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.calc-grid-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 0.75rem;
}

.form-group { margin-bottom: 1.15rem; width: 100%; }
.form-label {
  display: block;
  font-size: 0.825rem;
  font-weight: 600;
  color: var(--platinum-200);
  margin-bottom: 0.35rem;
}

.form-label span.unit {
  color: #60A5FA;
  font-family: var(--font-mono);
  font-size: 0.725rem;
}

/* 16px font prevents iOS Safari auto-zoom */
.form-control {
  width: 100%;
  max-width: 100%;
  padding: 0.75rem 0.9rem;
  min-height: 44px;
  background: var(--bg-main);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-md);
  color: #FFFFFF;
  font-family: var(--font-body);
  font-size: 16px;
  transition: all var(--transition-fast);
  text-overflow: ellipsis;
}

.form-control:focus {
  outline: none;
  border-color: var(--brand-blue-light);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.25);
}

.form-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394a3b8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 0.85rem center;
  background-size: 14px;
  padding-right: 2.25rem;
}

.calc-output-card {
  background: linear-gradient(135deg, #090E17 0%, #161E2C 100%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.calc-result-box { margin-bottom: 1.25rem; }
.calc-result-title {
  font-size: 0.78rem;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-bottom: 0.25rem;
}

.calc-result-value {
  font-family: var(--font-mono);
  font-size: 2.35rem;
  font-weight: 700;
  color: #FFFFFF;
}

.calc-result-unit {
  font-size: 1.15rem;
  color: #93C5FD;
  margin-left: 0.3rem;
}

.calc-spec-breakdown {
  list-style: none;
  border-top: 1px solid var(--border-subtle);
  padding-top: 0.85rem;
}

.calc-breakdown-row {
  display: flex;
  justify-content: space-between;
  font-size: 0.78rem;
  padding: 0.3rem 0;
  color: var(--platinum-300);
}
.calc-breakdown-row span:last-child {
  font-family: var(--font-mono);
  font-weight: 600;
  color: #FFFFFF;
  text-align: right;
  padding-left: 0.5rem;
}

/* ==========================================================================
   Branch Cards
   ========================================================================== */

.branches-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(310px, 1fr));
  gap: 1.5rem;
}

.branch-card {
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  transition: all var(--transition-normal);
  display: flex;
  flex-direction: column;
}

.branch-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-medium);
  box-shadow: var(--shadow-md);
}

.branch-card.featured {
  border-color: rgba(59, 130, 246, 0.4);
  background: linear-gradient(180deg, rgba(37, 99, 235, 0.08) 0%, var(--bg-card) 100%);
}

.branch-badge {
  display: inline-block;
  align-self: flex-start;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-sm);
  background: var(--brand-blue-subtle);
  border: 1px solid var(--brand-blue-border);
  color: #93C5FD;
  font-size: 0.725rem;
  font-weight: 700;
  text-transform: uppercase;
  margin-bottom: 0.85rem;
}

.branch-title {
  font-size: 1.35rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 0.65rem;
}

.branch-address {
  font-size: 0.85rem;
  color: var(--platinum-300);
  margin-bottom: 1.25rem;
  line-height: 1.45;
  display: flex;
  gap: 0.45rem;
}

.branch-contact-list {
  list-style: none;
  margin-bottom: 1.5rem;
  flex-grow: 1;
}

.branch-contact-item {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.45rem 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.04);
  font-size: 0.825rem;
  white-space: nowrap;
}
.branch-contact-item:last-child { border-bottom: none; }

.branch-contact-item a { color: #FFFFFF; font-family: var(--font-mono); }
.branch-contact-item a:hover { color: #60A5FA; }

.branch-actions { display: flex; gap: 0.5rem; }

/* ==========================================================================
   RFQ Section Card
   ========================================================================== */

.rfq-section-card {
  background: linear-gradient(135deg, #0F1522 0%, #162032 100%);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  padding: 3rem;
  box-shadow: var(--shadow-lg);
}

.rfq-form-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.15rem;
}
.rfq-form-grid .full-width { grid-column: 1 / -1; }

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  background: #06090F;
  border-top: 1px solid var(--border-subtle);
  padding: 4rem 0 2rem 0;
  color: var(--text-muted);
  font-size: 0.875rem;
}

.footer-grid {
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1.2fr;
  gap: 2.5rem;
  margin-bottom: 3rem;
}

.footer-col-title {
  font-family: var(--font-heading);
  font-size: 0.925rem;
  font-weight: 700;
  color: #FFFFFF;
  margin-bottom: 1.15rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.footer-links { list-style: none; }
.footer-links li { margin-bottom: 0.55rem; }
.footer-links a { color: var(--platinum-400); transition: color var(--transition-fast); }
.footer-links a:hover { color: #FFFFFF; }

.footer-bottom {
  padding-top: 1.75rem;
  border-top: 1px solid var(--border-subtle);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 1rem;
  font-size: 0.78rem;
}

/* ==========================================================================
   Mobile Quick Action Floating Bar (Zero Overflow)
   ========================================================================== */

.mobile-bottom-bar {
  display: none;
  position: fixed;
  bottom: 0;
  left: 0;
  width: 100vw;
  background: rgba(11, 15, 23, 0.96);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-top: 1px solid var(--border-medium);
  padding: 0.45rem 0.6rem;
  padding-bottom: max(0.45rem, env(safe-area-inset-bottom));
  z-index: 990;
  box-shadow: 0 -4px 25px rgba(0, 0, 0, 0.6);
  box-sizing: border-box;
}

.mobile-bottom-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr 1.1fr;
  gap: 0.35rem;
  width: 100%;
  max-width: 500px;
  margin: 0 auto;
}

.mobile-bottom-grid .btn {
  padding: 0.45rem 0.35rem;
  min-height: 40px;
  font-size: 0.78rem;
  font-weight: 600;
  gap: 0.3rem;
  border-radius: var(--radius-md);
  white-space: nowrap;
}

.mobile-bottom-grid .btn svg {
  flex-shrink: 0;
}

/* Modal & Toast */
.modal-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(6, 9, 15, 0.85);
  backdrop-filter: blur(8px);
  z-index: 2000;
  display: none;
  align-items: center;
  justify-content: center;
  padding: 1rem;
  opacity: 0;
  transition: opacity var(--transition-normal);
}
.modal-backdrop.open { display: flex; opacity: 1; }

.modal-content {
  background: var(--bg-card);
  border: 1px solid var(--border-medium);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 650px;
  max-height: 90vh;
  overflow-y: auto;
  padding: 2rem;
  position: relative;
  box-shadow: var(--shadow-lg);
}

.modal-close-btn {
  position: absolute;
  top: 1rem;
  right: 1rem;
  background: var(--bg-main);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
  width: 38px;
  height: 38px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 1.25rem;
}
.modal-close-btn:hover { color: #FFFFFF; }

.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  background: var(--bg-elevated);
  border: 1px solid var(--brand-blue-light);
  box-shadow: var(--shadow-lg), var(--shadow-blue-glow);
  color: white;
  padding: 0.9rem 1.35rem;
  border-radius: var(--radius-md);
  z-index: 3000;
  display: flex;
  align-items: center;
  gap: 0.65rem;
  transform: translateY(100px);
  opacity: 0;
  transition: all var(--transition-normal);
  font-size: 0.875rem;
}
.toast.show { transform: translateY(0); opacity: 1; }

/* ==========================================================================
   Comprehensive Mobile & Tablet Media Queries
   ========================================================================== */

@media (max-width: 1024px) {
  .hero-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .calc-body { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: repeat(2, 1fr); }
  .top-contacts-group { gap: 0.65rem; }
}

@media (max-width: 768px) {
  /* Prevent Any Accidental Horizontal Scroll */
  body {
    padding-bottom: 70px;
  }
  
  .container {
    padding: 0 1rem;
  }

  /* Responsive 2-Column Grids collapse cleanly into 1 column on Mobile */
  .responsive-grid-2, .responsive-grid-2-equal {
    grid-template-columns: 1fr;
    gap: 1.5rem;
  }

  /* Hide Top bar on mobile to avoid clutter */
  .top-bar { display: none; }
  
  /* Mobile Header Layout - Clean Logo & Toggle */
  .header-inner {
    padding: 0.6rem 0;
  }

  .brand-logo-container {
    max-width: 72%;
  }

  .exact-logo-img {
    height: 28px;
    max-width: 100%;
    object-fit: contain;
  }

  /* Hide the desktop Request RFQ button in header on mobile */
  .nav-actions .btn-primary {
    display: none;
  }

  .mobile-toggle {
    display: flex;
    width: 38px;
    height: 38px;
  }
  
  /* Mobile Navigation Drawer */
  .main-nav {
    display: none;
    position: fixed;
    top: 54px;
    left: 0;
    width: 100vw;
    height: calc(100vh - 54px);
    background: rgba(11, 15, 23, 0.98);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-top: 1px solid var(--border-medium);
    padding: 1.5rem 1.25rem 6rem 1.25rem;
    flex-direction: column;
    align-items: stretch;
    gap: 0.4rem;
    overflow-y: auto;
    z-index: 999;
  }
  
  .main-nav.mobile-open { display: flex; }
  
  .main-nav .nav-link {
    font-size: 1.1rem;
    font-weight: 600;
    padding: 0.8rem 0.4rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    display: block;
    width: 100%;
  }

  /* Mobile Quick Bottom Floating Bar Active */
  .mobile-bottom-bar { display: block; }
  
  /* Hero Refinements for Mobile */
  .hero {
    padding: 2.25rem 0 2rem 0;
  }
  
  .hero-badge-group {
    gap: 0.35rem;
    margin-bottom: 1rem;
  }

  .badge-trust {
    font-size: 0.72rem;
    padding: 0.22rem 0.55rem;
  }

  .hero-title {
    font-size: clamp(1.75rem, 6.5vw, 2.3rem);
    line-height: 1.24;
    margin-bottom: 0.85rem;
  }

  .hero-lead {
    font-size: 0.92rem;
    line-height: 1.55;
    margin-bottom: 1.35rem;
  }

  .hero-actions {
    flex-direction: column;
    gap: 0.6rem;
    margin-bottom: 1.75rem;
  }
  .hero-actions .btn { width: 100%; }
  
  .hero-stats {
    grid-template-columns: repeat(2, 1fr);
    gap: 0.85rem;
    padding-top: 1.15rem;
  }
  .stat-number { font-size: 1.45rem; }
  .stat-label { font-size: 0.7rem; }

  /* Product Tabs Mobile Horizontal Swipe */
  .product-category-tabs {
    justify-content: flex-start;
    padding-left: 0.25rem;
    padding-right: 0.25rem;
    gap: 0.35rem;
    margin-bottom: 1.5rem;
  }
  .cat-tab-btn {
    padding: 0.45rem 0.85rem;
    font-size: 0.78rem;
  }

  .products-grid {
    grid-template-columns: 1fr;
    gap: 1.15rem;
  }

  .section { padding: 3rem 0; }
  .section-sm { padding: 2rem 0; }
  .section-header { margin-bottom: 2rem; }

  /* Trust Bar Mobile */
  .trust-bar-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  /* Form & Cards Mobile */
  .rfq-form-grid { grid-template-columns: 1fr; }
  .rfq-section-card { padding: 1.5rem 1rem; }
  .hero-visual-card { padding: 1.25rem 1rem; }
  
  .footer-grid { grid-template-columns: 1fr; gap: 1.75rem; }
  .footer-bottom { flex-direction: column; text-align: center; gap: 0.75rem; }

  .modal-content {
    padding: 1.35rem 1rem;
    border-radius: var(--radius-lg);
  }
  
  .toast {
    left: 0.75rem;
    right: 0.75rem;
    bottom: 4.8rem;
    text-align: center;
  }
}

@media (max-width: 640px) {
  /* Calculator Unified Mobile Box */
  .calculator-wrapper {
    border-radius: var(--radius-lg);
    background: var(--bg-card);
  }
  
  .calc-nav-tabs { display: none; }
  .calc-mobile-mode-wrap {
    display: block;
    padding: 1.25rem 1.15rem 0.25rem 1.15rem;
    background: var(--bg-card);
  }
  
  .calc-body {
    padding: 1rem 1.15rem 1.25rem 1.15rem;
    gap: 1.25rem;
    background: var(--bg-card);
  }

  .calc-grid-2, .calc-grid-3 {
    grid-template-columns: 1fr;
    gap: 0.85rem;
  }
  
  .calc-output-card {
    padding: 1.25rem 1rem;
  }
  
  .calc-result-value { font-size: 1.95rem; }

  /* Buttons on Mobile: allow wrapping and 100% boundary safety */
  .btn-lg {
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
    white-space: normal;
    text-align: center;
  }
}

@media (max-width: 480px) {
  .branch-quick-selector { grid-template-columns: 1fr; }
}