/* 
  DELTA INDUSTRIES - Official Corporate Stylesheet 
  Theme: Industrial Blue, Steel Dark Gray & Electric Orange Accent
*/

:root {
  --primary-blue: #0D6EFD;
  --primary-navy: #0F2042;
  --secondary-navy: #152B52;
  --accent-orange: #FF6B00;
  --accent-orange-hover: #E05D00;
  --dark-slate: #0F172A;
  --text-muted: #64748B;
  --light-bg: #F8FAFC;
  --card-bg: #FFFFFF;
  --border-color: #E2E8F0;
  
  --font-heading: 'Montserrat', sans-serif;
  --font-body: 'Plus Jakarta Sans', sans-serif;
  
  --shadow-sm: 0 2px 8px rgba(15, 23, 42, 0.04);
  --shadow-md: 0 10px 25px -5px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 20px 35px -10px rgba(15, 23, 42, 0.12);
  --shadow-glow: 0 10px 30px rgba(255, 107, 0, 0.25);
  
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-pill: 50px;
  
  --transition: all 0.3s cubic-bezier(0.16, 1, 0.3, 1);
}

/* Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

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

body {
  font-family: var(--font-body);
  color: var(--dark-slate);
  background-color: var(--light-bg);
  line-height: 1.6;
  overflow-x: hidden;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--primary-navy);
  letter-spacing: -0.02em;
}

a {
  text-decoration: none;
  transition: var(--transition);
}

/* Top Bar */
.top-bar {
  background-color: var(--primary-navy);
  color: #CBD5E1;
  font-size: 0.875rem;
  padding: 8px 0;
  border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.top-bar a {
  color: #CBD5E1;
}

.top-bar a:hover {
  color: var(--accent-orange);
}

.top-bar-icon {
  color: var(--accent-orange);
  margin-right: 6px;
}

/* Sticky Navbar */
.navbar-custom {
  background-color: #FFFFFF;
  padding: 14px 0;
  transition: var(--transition);
  box-shadow: var(--shadow-sm);
}

.navbar-custom.is-sticky {
  position: sticky;
  top: 0;
  z-index: 1030;
  background-color: rgba(255, 255, 255, 0.96);
  backdrop-filter: blur(12px);
  box-shadow: var(--shadow-md);
  padding: 10px 0;
}

.navbar-brand-logo {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent-orange) 0%, #D95300 100%);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.35rem;
  font-weight: 800;
  box-shadow: 0 4px 12px rgba(255, 107, 0, 0.3);
}

.brand-text {
  display: flex;
  flex-direction: column;
}

.brand-title {
  font-family: var(--font-heading);
  font-size: 1.35rem;
  font-weight: 800;
  color: var(--primary-navy);
  line-height: 1.1;
  letter-spacing: -0.03em;
}

.brand-title span {
  color: var(--accent-orange);
}

.brand-sub {
  font-size: 0.65rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--text-muted);
}

.nav-link {
  font-weight: 600;
  color: var(--primary-navy) !important;
  font-size: 0.95rem;
  padding: 8px 16px !important;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover, .nav-link.active {
  color: var(--accent-orange) !important;
  background-color: rgba(255, 107, 0, 0.06);
}

/* Custom Buttons */
.btn-accent {
  background: linear-gradient(135deg, var(--accent-orange) 0%, var(--accent-orange-hover) 100%);
  color: #FFFFFF !important;
  font-weight: 700;
  padding: 12px 28px;
  border-radius: var(--radius-pill);
  border: none;
  box-shadow: var(--shadow-glow);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
  white-space: nowrap;
}

.btn-accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 35px rgba(255, 107, 0, 0.35);
  color: #FFFFFF;
}

.btn-navy {
  background-color: var(--primary-navy);
  color: #FFFFFF !important;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  border: 1px solid var(--primary-navy);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-navy:hover {
  background-color: var(--secondary-navy);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
  color: #FFFFFF;
}

.btn-outline-navy {
  border: 2px solid var(--primary-navy);
  color: var(--primary-navy) !important;
  font-weight: 600;
  padding: 10px 24px;
  border-radius: var(--radius-pill);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-outline-navy:hover {
  background-color: var(--primary-navy);
  color: #FFFFFF !important;
}

.btn-whatsapp {
  background-color: #25D366;
  color: #FFFFFF !important;
  font-weight: 600;
  padding: 12px 26px;
  border-radius: var(--radius-pill);
  box-shadow: 0 6px 20px rgba(37, 211, 102, 0.3);
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-whatsapp:hover {
  background-color: #20BA5A;
  transform: translateY(-2px);
  color: #FFFFFF;
}

/* Hero Section */
.hero-section {
  position: relative;
  background: linear-gradient(135deg, rgba(15, 32, 66, 0.92) 0%, rgba(21, 43, 82, 0.85) 100%),
              url('https://images.unsplash.com/photo-1581091226825-a6a2a5aee158?auto=format&fit=crop&w=1920&q=80') center/cover no-repeat;
  color: #FFFFFF;
  padding: 120px 0 100px;
  min-height: 85vh;
  display: flex;
  align-items: center;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 107, 0, 0.15);
  border: 1px solid rgba(255, 107, 0, 0.4);
  color: #FF9E59;
  padding: 6px 16px;
  border-radius: var(--radius-pill);
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: 24px;
}

.hero-title {
  font-size: clamp(2.2rem, 5vw, 3.8rem);
  font-weight: 800;
  color: #FFFFFF;
  line-height: 1.15;
  margin-bottom: 20px;
}

.hero-title span {
  color: var(--accent-orange);
}

.hero-desc {
  font-size: 1.15rem;
  color: #CBD5E1;
  max-width: 650px;
  margin-bottom: 36px;
}

.hero-stats-bar {
  background: rgba(255, 255, 255, 0.06);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  padding: 20px 30px;
  margin-top: 40px;
}

/* Feature Badges Grid */
.feature-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 30px 24px;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
}

.feature-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: rgba(13, 110, 253, 0.3);
}

.feature-icon-box {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-md);
  background: rgba(13, 110, 253, 0.08);
  color: var(--primary-blue);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.6rem;
  margin-bottom: 20px;
  transition: var(--transition);
}

.feature-card:hover .feature-icon-box {
  background: var(--accent-orange);
  color: #FFFFFF;
}

/* Section Headings */
.section-header {
  margin-bottom: 50px;
}

.section-subtitle {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--accent-orange);
  margin-bottom: 10px;
  display: block;
}

.section-title {
  font-size: clamp(1.8rem, 3.5vw, 2.6rem);
  font-weight: 800;
  color: var(--primary-navy);
}

.section-desc {
  color: var(--text-muted);
  max-width: 680px;
  margin: 12px auto 0;
  font-size: 1.05rem;
}

/* Product Cards */
.product-card {
  background: var(--card-bg);
  border-radius: var(--radius-md);
  border: 1px solid var(--border-color);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  transition: var(--transition);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.product-card:hover {
  transform: translateY(-8px);
  box-shadow: var(--shadow-lg);
  border-color: rgba(255, 107, 0, 0.3);
}

.product-img-wrapper {
  position: relative;
  height: 240px;
  overflow: hidden;
  background-color: #F1F5F9;
}

.product-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.product-card:hover .product-img {
  transform: scale(1.08);
}

.product-badge {
  position: absolute;
  top: 14px;
  left: 14px;
  background-color: var(--primary-navy);
  color: #FFFFFF;
  font-size: 0.75rem;
  font-weight: 700;
  padding: 4px 12px;
  border-radius: var(--radius-pill);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.product-body {
  padding: 24px;
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.product-title {
  font-size: 1.2rem;
  font-weight: 700;
  margin-bottom: 10px;
}

.product-spec-list {
  list-style: none;
  padding: 0;
  margin: 14px 0 20px;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.product-spec-list li {
  display: flex;
  align-items: center;
  gap: 8px;
  margin-bottom: 6px;
}

.product-spec-list i {
  color: var(--accent-orange);
  font-size: 0.75rem;
}

.product-footer {
  margin-top: auto;
  display: flex;
  gap: 10px;
}

/* Service Card */
.service-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 36px 28px;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
  height: 100%;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 4px;
  background: linear-gradient(90deg, var(--primary-blue), var(--accent-orange));
  opacity: 0;
  transition: var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
}

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

.service-icon {
  width: 64px;
  height: 64px;
  background: linear-gradient(135deg, var(--primary-navy) 0%, #1D3B73 100%);
  color: #FFFFFF;
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.75rem;
  margin-bottom: 24px;
  box-shadow: 0 6px 16px rgba(15, 32, 66, 0.2);
}

/* Stat Counter Box */
.stat-box {
  padding: 30px 20px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.12);
}

.stat-box:last-child {
  border-right: none;
}

.stat-number {
  font-size: clamp(2.2rem, 4vw, 3.2rem);
  font-weight: 800;
  color: var(--accent-orange);
  line-height: 1;
  margin-bottom: 6px;
  font-family: var(--font-heading);
}

.stat-label {
  font-size: 0.9rem;
  color: #CBD5E1;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* Workflow Step */
.workflow-step {
  text-align: center;
  position: relative;
  padding: 20px;
}

.step-num {
  width: 50px;
  height: 50px;
  background-color: var(--accent-orange);
  color: #FFFFFF;
  font-weight: 800;
  font-size: 1.25rem;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 20px;
  box-shadow: var(--shadow-glow);
}

/* Gallery Grid & Lightbox */
.gallery-item {
  position: relative;
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  height: 280px;
  cursor: pointer;
}

.gallery-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 0.5s ease;
}

.gallery-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(15, 32, 66, 0.9) 0%, rgba(15, 32, 66, 0.2) 100%);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 20px;
  opacity: 0;
  transition: var(--transition);
}

.gallery-item:hover .gallery-img {
  transform: scale(1.1);
}

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

/* Filter Nav */
.filter-btn {
  border: 1px solid var(--border-color);
  background: #FFFFFF;
  color: var(--primary-navy);
  padding: 8px 20px;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 0.9rem;
  margin: 4px;
  transition: var(--transition);
}

.filter-btn:hover, .filter-btn.active {
  background: var(--primary-navy);
  color: #FFFFFF;
  border-color: var(--primary-navy);
}

/* Floating Action Buttons */
.floating-actions {
  position: fixed;
  bottom: 24px;
  right: 24px;
  z-index: 1040;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.float-btn {
  width: 52px;
  height: 52px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: #FFFFFF;
  font-size: 1.4rem;
  box-shadow: 0 8px 20px rgba(0, 0, 0, 0.25);
  transition: var(--transition);
  position: relative;
}

.float-btn:hover {
  transform: scale(1.12);
  color: #FFFFFF;
}

.float-btn-whatsapp {
  background-color: #25D366;
}

.float-btn-call {
  background-color: var(--primary-blue);
}

.float-btn-top {
  background-color: var(--primary-navy);
  opacity: 0;
  visibility: hidden;
}

.float-btn-top.is-visible {
  opacity: 1;
  visibility: visible;
}

/* Testimonial Card */
.testimonial-card {
  background: var(--card-bg);
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md);
  padding: 32px;
  box-shadow: var(--shadow-sm);
  position: relative;
}

.quote-icon {
  font-size: 2.5rem;
  color: rgba(255, 107, 0, 0.2);
  position: absolute;
  top: 20px;
  right: 24px;
}

.rating-stars {
  color: #FFC107;
  font-size: 0.9rem;
  margin-bottom: 14px;
}

/* FAQ Accordion */
.accordion-item {
  border: 1px solid var(--border-color);
  border-radius: var(--radius-md) !important;
  margin-bottom: 12px;
  overflow: hidden;
}

.accordion-button {
  font-family: var(--font-heading);
  font-weight: 700;
  color: var(--primary-navy);
  background-color: #FFFFFF;
  padding: 18px 24px;
  box-shadow: none !important;
}

.accordion-button:not(.collapsed) {
  background-color: rgba(13, 110, 253, 0.05);
  color: var(--primary-blue);
}

/* Contact Info Box */
.contact-info-card {
  background: linear-gradient(135deg, var(--primary-navy) 0%, #152B52 100%);
  color: #FFFFFF;
  border-radius: var(--radius-lg);
  padding: 40px;
  height: 100%;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 18px;
  margin-bottom: 28px;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.1);
  color: var(--accent-orange);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
}

/* Google Map Container */
.map-container {
  border-radius: var(--radius-md);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border-color);
  height: 400px;
}

.map-container iframe {
  width: 100%;
  height: 100%;
  border: 0;
}

/* Footer */
.footer-main {
  background-color: var(--primary-navy);
  color: #94A3B8;
  padding: 70px 0 30px;
  border-top: 4px solid var(--accent-orange);
}

.footer-heading {
  color: #FFFFFF;
  font-size: 1.15rem;
  font-weight: 700;
  margin-bottom: 24px;
  position: relative;
  padding-bottom: 10px;
}

.footer-heading::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 40px;
  height: 3px;
  background-color: var(--accent-orange);
  border-radius: 2px;
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: 12px;
}

.footer-links a {
  color: #94A3B8;
  transition: var(--transition);
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.footer-links a:hover {
  color: var(--accent-orange);
  transform: translateX(4px);
}

.social-icon-btn {
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  color: #FFFFFF;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition);
  margin-right: 8px;
}

.social-icon-btn:hover {
  background: var(--accent-orange);
  color: #FFFFFF;
  transform: translateY(-3px);
}

.footer-bottom {
  background-color: #0A152C;
  padding: 20px 0;
  color: #64748B;
  font-size: 0.88rem;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

/* Modal Customization */
.modal-content {
  border-radius: var(--radius-lg);
  border: none;
  overflow: hidden;
}

.modal-header {
  background-color: var(--primary-navy);
  color: #FFFFFF;
  border-bottom: none;
  padding: 20px 28px;
}

.modal-header .btn-close {
  filter: invert(1) grayscale(100%) brightness(200%);
}

/* Responsive Overrides */
@media (max-width: 991.98px) {
  .hero-section {
    padding: 90px 0 60px;
    text-align: center;
  }

  .hero-desc {
    margin-left: auto;
    margin-right: auto;
  }

  .hero-btns {
    justify-content: center;
  }

  .stat-box {
    border-right: none;
    border-bottom: 1px solid rgba(255, 255, 255, 0.12);
    padding: 20px 0;
  }
  
  .stat-box:last-child {
    border-bottom: none;
  }
}