/* ====================================
   SEVENHC Website - Main Styles
   Deep Matte Black Theme
   ==================================== */

/* CSS Variables */
:root {
  /* Colors - Pure Black with Darker Blue Accents */
  --color-black: #0A0A0A;
  --color-black-light: #1A1A1A;
  --color-black-lighter: #2A2A2A;
  --color-blue-light: #1a5f8a;
  --color-blue-dark: #0d3b5f;
  --color-blue-darker: #062842;
  --color-white: #FFFFFF;
  --color-gray: #CCCCCC;
  --color-gray-dark: #666666;
  
  /* Typography */
  --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  --font-secondary: 'Poppins', sans-serif;
  
  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 2rem;
  --spacing-lg: 4rem;
  --spacing-xl: 6rem;
  --spacing-xxl: 8rem;
  
  /* Transitions */
  --transition-fast: 0.2s ease;
  --transition-smooth: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

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

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

body {
  font-family: var(--font-primary);
  background-color: var(--color-black);
  color: var(--color-gray);
  line-height: 1.7;
  font-weight: 400;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Typography */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-secondary);
  color: var(--color-white);
  font-weight: 600;
  line-height: 1.2;
  margin-bottom: var(--spacing-sm);
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(2rem, 4vw, 3.5rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: clamp(1.5rem, 3vw, 2.25rem);
}

h4 {
  font-size: clamp(1.25rem, 2.5vw, 1.75rem);
}

p {
  margin-bottom: var(--spacing-sm);
  font-size: 1.125rem;
  color: var(--color-gray);
}

a {
  color: var(--color-blue-light);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-white);
}

/* Container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

.container-narrow {
  max-width: 1000px;
  margin: 0 auto;
  padding: 0 var(--spacing-md);
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background-color: rgba(10, 10, 10, 0.95);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-black-lighter);
  transition: all var(--transition-smooth);
}

header.scrolled {
  background-color: rgba(10, 10, 10, 0.98);
  box-shadow: 0 4px 30px rgba(0, 0, 0, 0.5);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) 0;
}

.logo {
  font-family: var(--font-secondary);
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--color-white);
  letter-spacing: -0.01em;
}

.logo span {
  color: var(--color-blue-light);
}

.nav-links {
  display: flex;
  gap: var(--spacing-md);
  list-style: none;
  align-items: center;
}

.nav-links a {
  color: var(--color-gray);
  font-weight: 500;
  font-size: 1rem;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  transition: all var(--transition-fast);
}

.nav-links a:hover {
  color: var(--color-white);
  background-color: var(--color-black-lighter);
}

.nav-links .cta-button {
  background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-light));
  color: var(--color-white);
  padding: 0.75rem 1.5rem;
  border-radius: 50px;
  font-weight: 600;
  box-shadow: 0 4px 15px rgba(42, 159, 214, 0.3);
}

.nav-links .cta-button:hover {
  background: linear-gradient(135deg, var(--color-blue-light), var(--color-blue-dark));
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(42, 159, 214, 0.4);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  gap: 6px;
  cursor: pointer;
  z-index: 1001;
}

.menu-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--color-white);
  border-radius: 3px;
  transition: all var(--transition-fast);
}

/* Buttons */
.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  font-family: var(--font-primary);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border-radius: 50px;
  cursor: pointer;
  transition: all var(--transition-smooth);
  border: none;
  text-decoration: none;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-light));
  color: var(--color-white);
  box-shadow: 0 4px 20px rgba(42, 159, 214, 0.3);
}

.btn-primary:hover {
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(42, 159, 214, 0.5);
}

.btn-secondary {
  background-color: transparent;
  color: var(--color-white);
  border: 2px solid var(--color-blue-light);
}

.btn-secondary:hover {
  background-color: var(--color-blue-light);
  transform: translateY(-3px);
  box-shadow: 0 8px 30px rgba(42, 159, 214, 0.3);
}

.btn-ghost {
  background-color: transparent;
  color: var(--color-blue-light);
  border: 1px solid var(--color-black-lighter);
}

.btn-ghost:hover {
  border-color: var(--color-blue-light);
  background-color: rgba(42, 159, 214, 0.1);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: var(--spacing-xxl) 0;
  position: relative;
  overflow: hidden;
}

.hero-content {
  position: relative;
  z-index: 2;
  max-width: 900px;
  margin: 0 auto;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: 1.5rem;
  color: var(--color-gray);
  margin-bottom: var(--spacing-lg);
  animation: fadeInUp 1s ease 0.2s both;
}

.hero-buttons {
  display: flex;
  gap: var(--spacing-sm);
  justify-content: center;
  flex-wrap: wrap;
  animation: fadeInUp 1s ease 0.4s both;
}

/* Section Styles */
section {
  padding: var(--spacing-xxl) 0;
  position: relative;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-xl);
}

.section-label {
  display: inline-block;
  color: var(--color-blue-light);
  font-size: 0.875rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--spacing-sm);
}

.section-title {
  margin-bottom: var(--spacing-sm);
}

.section-description {
  font-size: 1.25rem;
  color: var(--color-gray-dark);
  max-width: 700px;
  margin: 0 auto;
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: var(--spacing-md);
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
}

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
}

.grid-4 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Card Styles */
.card {
  background-color: var(--color-black-light);
  border: 1px solid var(--color-black-lighter);
  border-radius: 16px;
  padding: var(--spacing-lg);
  transition: all var(--transition-smooth);
  position: relative;
  overflow: hidden;
}

.card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-blue-dark), var(--color-blue-light));
  transform: scaleX(0);
  transition: transform var(--transition-smooth);
}

.card:hover {
  /* Hover animation disabled */
  border-color: var(--color-blue-dark);
}

.card:hover::before {
  /* Hover animation disabled */
}

.card-icon {
  width: 60px;
  height: 60px;
  background: linear-gradient(135deg, var(--color-blue-dark), var(--color-blue-light));
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--spacing-md);
  font-size: 1.75rem;
}

.card h3 {
  margin-bottom: var(--spacing-sm);
  font-size: 1.5rem;
}

.card p {
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-md);
}

/* Services Section */
.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: var(--spacing-lg);
  justify-items: center;
}

.services-grid > * {
  max-width: 400px;
  width: 100%;
}

/* Products Section */
.product-card {
  background: linear-gradient(135deg, var(--color-black-light), var(--color-black-lighter));
  border: 1px solid var(--color-black-lighter);
  border-radius: 20px;
  padding: var(--spacing-lg);
  transition: all var(--transition-smooth);
}

.product-card:hover {
  transform: translateY(-10px) scale(1.02);
  border-color: var(--color-blue-light);
  box-shadow: 0 25px 60px rgba(42, 159, 214, 0.2);
}

.product-header {
  margin-bottom: var(--spacing-md);
}

.product-badge {
  display: inline-block;
  background-color: var(--color-blue-dark);
  color: var(--color-white);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  font-size: 0.875rem;
  font-weight: 600;
  margin-bottom: var(--spacing-sm);
}

.product-features {
  list-style: none;
  margin: var(--spacing-md) 0;
}

.product-features li {
  padding: 0.75rem 0;
  border-bottom: 1px solid var(--color-black-lighter);
  color: var(--color-gray);
}

.product-features li:before {
  content: "✓";
  color: var(--color-blue-light);
  font-weight: bold;
  margin-right: 0.75rem;
}

/* Footer */
footer {
  background-color: var(--color-black-light);
  border-top: 1px solid var(--color-black-lighter);
  padding: var(--spacing-xl) 0 var(--spacing-md);
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-lg);
}

.footer-section h4 {
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
  font-size: 1.125rem;
}

.footer-section ul {
  list-style: none;
}

.footer-section ul li {
  margin-bottom: var(--spacing-xs);
}

.footer-section a {
  color: var(--color-gray-dark);
  transition: color var(--transition-fast);
}

.footer-section a:hover {
  color: var(--color-blue-light);
}

.footer-bottom {
  text-align: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-black-lighter);
  color: var(--color-gray-dark);
  font-size: 0.875rem;
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
  align-items: center;
}

.footer-legal {
  display: flex;
  gap: var(--spacing-sm);
  align-items: center;
  flex-wrap: wrap;
  justify-content: center;
}

.footer-legal a,
.footer-legal button {
  color: var(--color-gray-dark);
  transition: color var(--transition-fast);
}

.footer-legal a:hover,
.footer-legal button:hover {
  color: var(--color-blue-light);
}

/* Forms */
.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  color: var(--color-white);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.form-control {
  width: 100%;
  padding: 1rem;
  background-color: var(--color-black-lighter);
  border: 1px solid var(--color-black-lighter);
  border-radius: 8px;
  color: var(--color-white);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-blue-light);
  box-shadow: 0 0 0 3px rgba(42, 159, 214, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

select.form-control {
  cursor: pointer;
}

/* Animations */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes float {
  0%, 100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-20px);
  }
}

/* Responsive Design */
@media (max-width: 768px) {
  :root {
    --spacing-lg: 3rem;
    --spacing-xl: 4rem;
    --spacing-xxl: 5rem;
  }
  
  .nav-links {
    position: fixed;
    top: 0;
    right: -100%;
    width: 280px;
    height: 100vh;
    background-color: var(--color-black);
    flex-direction: column;
    justify-content: center;
    align-items: center;
    transition: right var(--transition-smooth);
    border-left: 1px solid var(--color-black-lighter);
  }
  
  .nav-links.active {
    right: 0;
  }
  
  .menu-toggle {
    display: flex;
  }
  
  .menu-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(8px, 8px);
  }
  
  .menu-toggle.active span:nth-child(2) {
    opacity: 0;
  }
  
  .menu-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(8px, -8px);
  }
  
  .hero {
    min-height: 80vh;
  }
  
  .hero-buttons {
    flex-direction: column;
    align-items: center;
  }
  
  .btn {
    width: 100%;
    max-width: 280px;
  }
  
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
}

/* React App Specific Styles */
.App {
  display: flex;
  flex-direction: column;
  min-height: 100vh;
}

main {
  flex: 1;
}

/* Page Wrapper */
.page {
  padding-top: 80px;
  min-height: 100vh;
}

/* Hero Small for Internal Pages */
.hero-small {
  padding: var(--spacing-xxl) 0 var(--spacing-xl);
  text-align: center;
  background: linear-gradient(135deg, var(--color-black), var(--color-black-light));
  border-bottom: 1px solid var(--color-black-lighter);
}

.hero-small h1 {
  margin-bottom: var(--spacing-sm);
}

.hero-small p {
  font-size: 1.25rem;
  color: var(--color-gray-dark);
}

/* Section Alt */
.section-alt {
  background-color: var(--color-black-light);
}

/* Form Row */
.form-row {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: var(--spacing-md);
}

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-group label {
  display: block;
  color: var(--color-white);
  font-weight: 500;
  margin-bottom: var(--spacing-xs);
}

.form-control {
  width: 100%;
  padding: 1rem;
  background-color: var(--color-black-lighter);
  border: 1px solid var(--color-black-lighter);
  border-radius: 8px;
  color: var(--color-white);
  font-family: var(--font-primary);
  font-size: 1rem;
  transition: all var(--transition-fast);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-blue-light);
  box-shadow: 0 0 0 3px rgba(42, 159, 214, 0.1);
}

textarea.form-control {
  resize: vertical;
  min-height: 150px;
}

select.form-control {
  cursor: pointer;
}

/* Footer Grid */
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--spacing-xl);
  margin-bottom: var(--spacing-xl);
}

.footer-section {
  margin-bottom: var(--spacing-md);
}

.footer-title {
  font-size: 1.75rem;
  margin-bottom: var(--spacing-md);
}

.footer-subtitle {
  font-size: 1.125rem;
  color: var(--color-white);
  margin-bottom: var(--spacing-md);
}

.footer-description {
  color: var(--color-gray-dark);
  margin-bottom: var(--spacing-md);
  line-height: 1.6;
}

.footer-contact {
  margin-top: var(--spacing-md);
}

.footer-contact p {
  margin-bottom: var(--spacing-xs);
  font-size: 0.95rem;
}

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

.footer-links li {
  margin-bottom: var(--spacing-xs);
}

.footer-links a {
  color: var(--color-gray-dark);
  transition: color var(--transition-fast);
  font-size: 0.95rem;
}

.footer-links a:hover {
  color: var(--color-blue-light);
}

.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-black-lighter);
  color: var(--color-gray-dark);
  font-size: 0.875rem;
}

.footer-social {
  display: flex;
  gap: var(--spacing-sm);
}

.footer-social a {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  background-color: var(--color-black-lighter);
  border-radius: 8px;
  color: var(--color-gray);
  transition: all var(--transition-fast);
}

.footer-social a:hover {
  background-color: var(--color-blue-light);
  color: var(--color-white);
  transform: translateY(-3px);
}

/* Product Tagline */
.product-tagline {
  font-size: 1.125rem;
  color: var(--color-blue-light);
  font-weight: 500;
  margin-bottom: var(--spacing-sm);
}

/* Active Nav Link */
.nav-links a.active {
  color: var(--color-white);
  background-color: var(--color-black-lighter);
}

/* Responsive Footer */
@media (max-width: 992px) {
  .footer-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
  
  .footer-bottom {
    flex-direction: column;
    gap: var(--spacing-md);
    text-align: center;
  }
  
  .form-row {
    grid-template-columns: 1fr;
  }
}

/* Utilities */
.text-center {
  text-align: center;
}

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.fade-in {
  opacity: 0;
  animation: fadeInUp 1s ease forwards;
}