/* ===========================
   Global Styles
=========================== */
:root {
  --primary: #0d1b2a;      /* Navy Blue */
  --secondary: #495057;    /* Steel Gray */
  --accent: #b02a37;       /* Deep Red */
  --background: #f8f9fa;   /* Off-White */
  --highlight: #2d6a4f;    /* Emerald Green */
}

body {
  margin: 0;
  font-family: 'Roboto', sans-serif;
  background-color: var(--background);
  color: var(--secondary);
}

h1, h2, h3 {
  font-family: 'Montserrat', sans-serif;
  margin-bottom: 15px;
  color: var(--primary);
}

/* ===========================
   Navigation Bar
=========================== */
.navbar {
  background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
  padding: 0;
  position: sticky;
  top: 0;
  z-index: 1000;
  box-shadow: 0 2px 10px rgba(0, 0, 0, 0.1);
}

.nav-container {
  max-width: 1200px;
  margin: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 15px 20px;
}

.nav-logo {
  display: flex;
  align-items: center;
  z-index: 1001;
}

.logo-text {
  display: flex;
  flex-direction: column;
  line-height: 1;
}

.logo-main {
  font-size: 1.65rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: white;
  text-shadow: 1px 1px 4px rgba(0, 0, 0, 0.24);
}

.logo-sub {
  font-size: 0.82rem;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.85);
  margin-top: -6px;
}

/* Hamburger Menu */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  z-index: 1001;
}

.bar {
  width: 25px;
  height: 3px;
  background-color: white;
  margin: 3px 0;
  transition: 0.3s;
  border-radius: 2px;
}

.hamburger.active .bar:nth-child(1) {
  transform: rotate(-45deg) translate(-5px, 6px);
}

.hamburger.active .bar:nth-child(2) {
  opacity: 0;
}

.hamburger.active .bar:nth-child(3) {
  transform: rotate(45deg) translate(-5px, -6px);
}

/* Navigation Menu */
.nav-menu {
  display: flex;
  list-style: none;
  margin: 0;
  padding: 0;
  gap: 30px;
}

.nav-menu li {
  position: relative;
}

.nav-menu a {
  color: white;
  text-decoration: none;
  font-weight: 500;
  padding: 10px 15px;
  border-radius: 5px;
  transition: all 0.3s ease;
  display: block;
}

.nav-menu a:hover {
  background-color: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* Dropdown */
.dropdown-menu {
  position: absolute;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  list-style: none;
  padding: 10px 0;
  margin: 0;
  min-width: 220px;
  border-radius: 8px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.15);
  opacity: 0;
  visibility: hidden;
  transform: translateY(-10px);
  transition: all 0.3s ease;
  z-index: 1000;
}

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

.dropdown-menu li {
  margin: 0;
}

.dropdown-menu a {
  color: var(--primary);
  padding: 12px 20px;
  font-weight: normal;
}

.dropdown-menu a:hover {
  background-color: var(--background);
  color: var(--accent);
}

.arrow {
  font-size: 0.8rem;
  margin-left: 5px;
  transition: transform 0.3s ease;
}

.dropdown:hover .arrow {
  transform: rotate(180deg);
}

/* ===========================
   Mobile Navigation
=========================== */
@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 40px;
    transition: left 0.3s ease;
    z-index: 999;
    padding: 100px 20px;
    box-sizing: border-box;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu li {
    width: 100%;
    text-align: center;
  }

  .nav-menu a {
    font-size: 1.2rem;
    padding: 15px 30px;
    width: 100%;
    max-width: 300px;
    margin: 0 auto;
  }

  .dropdown-menu {
    position: static;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: none;
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-radius: 0;
    margin-top: 10px;
    display: none;
  }

  .dropdown-menu.active {
    display: block;
  }

  .dropdown-menu a {
    color: white;
    padding: 10px 20px;
  }

  .dropdown-menu a:hover {
    background-color: rgba(255, 255, 255, 0.1);
    color: white;
  }

  .logo-text {
    font-size: 1.2rem;
  }
}

/* ===========================
   Hero Section
=========================== */
.hero {
  background: linear-gradient(135deg, #0b1630 0%, #15264a 40%, #1c3461 100%);
  color: white;
  padding: 120px 20px;
  text-align: center;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 10%, rgba(255,255,255,0.08), transparent 18%),
              radial-gradient(circle at 80% 20%, rgba(255,255,255,0.05), transparent 12%);
  filter: blur(1px);
  pointer-events: none;
}

.hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle, rgba(255,255,255,1) 3.5px, transparent 3.5px),
    radial-gradient(circle, rgba(255,255,255,0.85) 1.8px, transparent 1.8px);
  background-size: 130px 130px, 75px 75px;
  background-position: 0 0, 37px 37px;
  opacity: 0.18;
  pointer-events: none;
  animation: snow 22s linear infinite;
}

.hero h1 {
  color: white;
  font-size: 3.5rem;
  margin-bottom: 20px;
  text-shadow: 2px 2px 10px rgba(0,0,0,0.4);
}

.hero p {
  color: rgba(255,255,255,0.92);
  font-size: 1.3rem;
  margin-bottom: 40px;
  max-width: 600px;
  margin-left: auto;
  margin-right: auto;
}

.hero a {
  background: var(--accent);
  color: white;
  padding: 15px 30px;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.hero a:hover {
  transform: scale(1.05);
  background-color: var(--highlight);
}

/* ===========================
   Buttons
=========================== */
.btn {
  background: var(--primary);
  color: white;
  padding: 15px 30px;
  text-decoration: none;
  border-radius: 5px;
  font-weight: bold;
  display: inline-block;
  transition: transform 0.3s ease, background-color 0.3s ease;
}

.btn:hover {
  transform: scale(1.05);
  background-color: var(--accent);
}

/* ===========================
   Sections
=========================== */
section {
  padding: 80px 20px;
  position: relative;
}

section.light {
  background: linear-gradient(135deg, var(--background) 0%, #ffffff 100%);
}

section.dark {
  background: linear-gradient(135deg, #ffffff 0%, var(--background) 100%);
}

section h2 {
  color: var(--primary);
}

section h2.alt {
  color: var(--highlight);
}

/* ===========================
   Sections Content
=========================== */
section p {
  font-size: 1.1rem;
  line-height: 1.6;
  margin-bottom: 20px;
}

/* ===========================
   Product Cards
=========================== */
.products {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
  align-items: stretch;
}

.product-card {
  min-height: 240px;
  padding: 34px 28px;
  border-radius: 24px;
  background: radial-gradient(circle at top left, rgba(255, 255, 255, 0.88), rgba(248, 249, 250, 0.98) 48%);
  border: 1px solid rgba(13, 27, 42, 0.12);
  color: var(--secondary);
  transition: transform 0.35s ease, box-shadow 0.35s ease, border-color 0.35s ease, background-color 0.35s ease;
  box-shadow: 0 24px 60px rgba(15, 23, 42, 0.08);
  position: relative;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

.product-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 80px;
  height: 6px;
  border-radius: 0 0 10px 0;
  background: linear-gradient(90deg, var(--primary), var(--highlight), var(--accent));
}

.product-card::after {
  content: '';
  position: absolute;
  right: -30px;
  top: -30px;
  width: 110px;
  height: 110px;
  border-radius: 50%;
  background: rgba(176, 42, 55, 0.08);
  filter: blur(1px);
}

.product-card:hover {
  transform: translateY(-14px);
  box-shadow: 0 28px 70px rgba(15, 23, 42, 0.16);
  border-color: rgba(13, 27, 42, 0.22);
}

.product-card h3 {
  color: var(--primary);
  font-size: 1.6rem;
  margin-bottom: 14px;
  line-height: 1.1;
}

.product-card p {
  color: var(--secondary);
  font-size: 1rem;
  line-height: 1.8;
  max-width: 22ch;
}

.product-card.primary {
  background: linear-gradient(135deg, rgba(16, 78, 146, 0.12) 0%, rgba(255, 255, 255, 0.96) 100%);
  border-color: rgba(16, 78, 146, 0.18);
}

.product-card.primary::after {
  background: rgba(16, 78, 146, 0.1);
}

.product-card.secondary {
  background: linear-gradient(135deg, rgba(71, 148, 166, 0.14) 0%, rgba(255, 255, 255, 0.96) 100%);
  border-color: rgba(71, 148, 166, 0.2);
}

.product-card.secondary::after {
  background: rgba(71, 148, 166, 0.1);
}

.product-card.accent {
  background: linear-gradient(135deg, rgba(176, 42, 55, 0.16) 0%, rgba(255, 255, 255, 0.96) 100%);
  border-color: rgba(176, 42, 55, 0.2);
}

.product-card.accent::after {
  background: rgba(176, 42, 55, 0.1);
}

.quote-card {
  background: white;
  border-radius: 28px;
  padding: 40px;
  box-shadow: 0 25px 70px rgba(15, 23, 42, 0.08);
  border: 1px solid rgba(13, 27, 42, 0.08);
}

.quote-top h2 {
  margin-top: 0;
  color: var(--primary);
  font-size: 2rem;
}

.quote-top p {
  color: var(--secondary);
  font-size: 1rem;
  margin-bottom: 30px;
}

.quote-form {
  display: grid;
  gap: 22px;
}

.form-row {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.quote-form label {
  color: var(--primary);
  font-weight: 700;
}

.quote-form input,
.quote-form select,
.quote-form textarea {
  width: 100%;
  padding: 16px 18px;
  border-radius: 16px;
  border: 1px solid rgba(13, 27, 42, 0.14);
  background: #f8f9fa;
  color: var(--secondary);
  font-size: 1rem;
  box-shadow: inset 0 1px 4px rgba(0,0,0,0.04);
  transition: border-color 0.25s ease, box-shadow 0.25s ease;
}

.quote-form input:focus,
.quote-form select:focus,
.quote-form textarea:focus {
  outline: none;
  border-color: var(--highlight);
  box-shadow: 0 0 0 4px rgba(45, 106, 79, 0.12);
}

.submit-btn {
  width: fit-content;
  padding: 16px 34px;
  background: linear-gradient(135deg, var(--highlight), var(--accent));
  color: white;
  border: none;
  border-radius: 999px;
  font-size: 1rem;
  font-weight: 700;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.submit-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 18px 30px rgba(14, 65, 53, 0.18);
}

.quote-success,
.quote-error {
  padding: 20px 24px;
  border-radius: 18px;
  margin-bottom: 24px;
  font-weight: 600;
}

.quote-success {
  background: rgba(45, 106, 79, 0.1);
  border: 1px solid rgba(45, 106, 79, 0.2);
  color: var(--highlight);
}

.quote-error {
  background: rgba(176, 42, 55, 0.08);
  border: 1px solid rgba(176, 42, 55, 0.16);
  color: var(--accent);
}

@media (max-width: 768px) {
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* ===========================
   Feature Cards
=========================== */
.feature-card {
  flex: 1;
  min-width: 280px;
  padding: 30px 25px;
  border-radius: 12px;
  background: white;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  text-align: center;
  position: relative;
}

.feature-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.feature-card h3 {
  color: var(--primary);
  margin-bottom: 15px;
  font-size: 1.3rem;
}

.feature-card p {
  color: var(--secondary);
  line-height: 1.6;
}

/* Icons for features */
.feature-card:nth-child(1)::before {
  content: '🌍';
  font-size: 3rem;
  display: block;
  margin-bottom: 20px;
}

.feature-card:nth-child(2)::before {
  content: '🌱';
  font-size: 3rem;
  display: block;
  margin-bottom: 20px;
}

.feature-card:nth-child(3)::before {
  content: '✅';
  font-size: 3rem;
  display: block;
  margin-bottom: 20px;
}

.feature-card:nth-child(4)::before {
  content: '💰';
  font-size: 3rem;
  display: block;
  margin-bottom: 20px;
}

/* ===========================
   Stats Cards
=========================== */
.stat-card {
  text-align: center;
  padding: 20px;
  background: white;
  border-radius: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  transition: transform 0.3s ease;
  min-width: 200px;
}

.stat-card:hover {
  transform: translateY(-5px);
}

.stat-number {
  font-size: 3rem;
  font-weight: bold;
  color: var(--primary);
  margin-bottom: 10px;
}

.stat-label {
  font-size: 1rem;
  color: var(--secondary);
  text-transform: uppercase;
  letter-spacing: 1px;
}

/* ===========================
   Insight Cards
=========================== */
.insight-card {
  flex: 1;
  min-width: 350px;
  padding: 30px;
  border-radius: 12px;
  background: linear-gradient(145deg, #ffffff 0%, var(--background) 100%);
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  position: relative;
}

.insight-card:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 35px rgba(0, 0, 0, 0.15);
}

.insight-card h3 {
  color: var(--primary);
  margin-bottom: 15px;
}

.insight-card p {
  color: var(--secondary);
  line-height: 1.6;
  margin-bottom: 20px;
}

/* ===========================
   Contact Info
=========================== */
.contact-info {
  background: var(--background);
  padding: 15px 20px;
  border-radius: 8px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
  font-size: 0.9rem;
  text-align: center;
  min-width: 200px;
}

/* ===========================
   Footer
=========================== */
footer {
  background-color: var(--primary);
  color: white;
  padding: 40px 20px;
  margin-top: 50px;
}

footer h3 {
  color: var(--accent);
}

footer ul {
  list-style: none;
  padding: 0;
}

footer ul li a {
  color: white;
  text-decoration: none;
  transition: color 0.3s ease;
}

footer ul li a:hover {
  color: var(--accent);
}

footer .bottom-bar {
  text-align: center;
  margin-top: 30px;
  font-size: 0.9rem;
  color: var(--secondary);
}

/* ===========================
   Animations
=========================== */
@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes snow {
  from {
    background-position: 0 -100px, 35px -70px;
  }
  to {
    background-position: 0 1100px, 35px 980px;
  }
}

section {
  animation: fadeIn 1s ease-out;
}

/* ===========================
   Responsive
=========================== */
@media (max-width: 992px) {
  .nav-container {
    flex-direction: column;
    align-items: stretch;
    gap: 10px;
  }

  .logo-text {
    align-items: center;
    text-align: center;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100vh;
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 30px;
    transition: left 0.3s ease;
    z-index: 999;
    padding: 100px 20px;
    box-sizing: border-box;
  }

  .nav-menu.active {
    left: 0;
  }

  .nav-menu li {
    width: 100%;
    text-align: center;
  }

  .nav-menu a {
    font-size: 1.1rem;
    padding: 14px 24px;
    width: 100%;
    max-width: 320px;
    margin: 0 auto;
  }

  .hamburger {
    display: flex;
  }

  .dropdown-menu {
    position: static;
    background: rgba(255, 255, 255, 0.08);
    opacity: 1;
    visibility: visible;
    transform: none;
    box-shadow: none;
    border-radius: 0;
    margin-top: 10px;
    display: none;
    width: 100%;
  }

  .dropdown-menu.active {
    display: block;
  }

  .dropdown-menu a {
    color: white;
    padding: 12px 24px;
  }

  .dropdown-menu a:hover {
    background-color: rgba(255, 255, 255, 0.12);
  }

  .hero {
    padding: 80px 20px;
  }

  .hero h1 {
    font-size: 2.8rem;
  }

  .hero p {
    font-size: 1rem;
    max-width: 100%;
  }

  .btn, .hero a {
    width: auto;
    padding: 14px 26px;
  }

  section {
    padding: 50px 20px;
  }

  .products,
  .feature-card,
  .insight-card,
  .stat-card,
  .contact-info {
    min-width: auto;
    width: 100%;
  }

  .products,
  .feature-card,
  .insight-card,
  .stat-card {
    flex-direction: column;
  }

  .products {
    gap: 18px;
  }

  .feature-card,
  .insight-card {
    padding: 24px;
  }

  .stat-card {
    padding: 18px;
  }

  footer {
    padding: 30px 20px;
  }

  footer .bottom-bar {
    font-size: 0.85rem;
  }
}

@media (max-width: 600px) {
  .nav-container {
    padding: 12px 16px;
  }

  .logo-main {
    font-size: 1.4rem;
  }

  .logo-sub {
    font-size: 0.75rem;
  }

  .hero {
    padding: 60px 16px;
  }

  .hero h1 {
    font-size: 2.2rem;
  }

  .hero p {
    font-size: 0.95rem;
  }

  .hero a,
  .btn {
    width: 100%;
    max-width: 100%;
    padding: 14px 20px;
  }

  .nav-menu {
    padding: 90px 16px;
  }

  .nav-menu a {
    font-size: 1rem;
    padding: 14px 18px;
  }

  .dropdown-menu a {
    padding: 12px 18px;
  }

  section {
    padding: 40px 16px;
  }

  .hero::after {
    background-size: 180px 180px, 90px 90px;
    opacity: 0.06;
  }
}