/* NZUZOYETHU PROJECTS - MAIN CSS FRAMEWORK */
/* Color Scheme: Red, Black, White */

/* CSS Custom Properties */
:root {
  /* Primary Colors */
  --primary-red: #DC3545;        /* rgb(220, 53, 69) */
  --secondary-red: #CC2424;      /* rgb(204, 36, 36) */
  
  /* Neutral Colors */
  --black: #000000;
  --white: #FFFFFF;
  --dark-gray: #333333;
  --medium-gray: #666666;
  --light-gray: #CCCCCC;
  --background-gray: #F8F9FA;
  
  /* Gradients */
  --red-gradient: linear-gradient(135deg, #DC3545 0%, #CC2424 100%);
  --dark-gradient: linear-gradient(135deg, #000000 0%, #333333 100%);
  --light-gradient: linear-gradient(135deg, #FFFFFF 0%, #F8F9FA 100%);
  
  /* Typography */
  --font-family: 'Poppins', Arial, sans-serif;
  --font-size-xs: 0.75rem;
  --font-size-sm: 0.875rem;
  --font-size-base: 1rem;
  --font-size-lg: 1.125rem;
  --font-size-xl: 1.25rem;
  --font-size-2xl: 1.5rem;
  --font-size-3xl: 1.875rem;
  --font-size-4xl: 2.25rem;
  --font-size-5xl: 3rem;
  
  /* Spacing */
  --spacing-xs: 0.25rem;
  --spacing-sm: 0.5rem;
  --spacing-md: 1rem;
  --spacing-lg: 1.5rem;
  --spacing-xl: 2rem;
  --spacing-2xl: 3rem;
  --spacing-3xl: 4rem;
  
  /* Border Radius */
  --radius-sm: 0.25rem;
  --radius-md: 0.5rem;
  --radius-lg: 0.75rem;
  --radius-xl: 1rem;
  --radius-2xl: 1.5rem;
  
  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.1);
  --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.1);
  --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.15);
  
  /* Transitions */
  --transition-fast: 0.15s ease;
  --transition-normal: 0.3s ease;
  --transition-slow: 0.5s ease;
}

/* Prevent horizontal scroll */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

/* Additional overflow prevention */
html, body {
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

/* Prevent common overflow culprits */
img, video, iframe, embed, object {
  max-width: 100%;
  height: auto;
}

table {
  width: 100%;
  max-width: 100%;
  table-layout: auto;
}

pre, code {
  overflow-x: auto;
  max-width: 100%;
  word-wrap: break-word;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
}

body {
  font-family: var(--font-family);
  line-height: 1.6;
  color: var(--dark-gray);
  background-color: var(--white);
  overflow-x: hidden;
  width: 100%;
  max-width: 100vw;
  position: relative;
}

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

h1 { font-size: var(--font-size-5xl); }
h2 { font-size: var(--font-size-4xl); }
h3 { font-size: var(--font-size-3xl); }
h4 { font-size: var(--font-size-2xl); }
h5 { font-size: var(--font-size-xl); }
h6 { font-size: var(--font-size-lg); }

p {
  margin-bottom: var(--spacing-md);
  color: var(--medium-gray);
}

a {
  color: var(--primary-red);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--secondary-red);
}

/* Container */
.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.container-fluid {
  width: 100%;
  padding: 0 var(--spacing-lg);
}

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

.grid-cols-1 { grid-template-columns: repeat(1, 1fr); }
.grid-cols-2 { grid-template-columns: repeat(2, 1fr); }
.grid-cols-3 { grid-template-columns: repeat(3, 1fr); }
.grid-cols-4 { grid-template-columns: repeat(4, 1fr); }

/* Flexbox Utilities */
.flex { display: flex; }
.flex-col { flex-direction: column; }
.flex-row { flex-direction: row; }
.items-center { align-items: center; }
.justify-center { justify-content: center; }
.justify-between { justify-content: space-between; }
.justify-around { justify-content: space-around; }

/* Spacing Utilities */
.mt-0 { margin-top: 0; }
.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-0 { margin-bottom: 0; }
.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); }

.p-0 { padding: 0; }
.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

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

.text-xs { font-size: var(--font-size-xs); }
.text-sm { font-size: var(--font-size-sm); }
.text-base { font-size: var(--font-size-base); }
.text-lg { font-size: var(--font-size-lg); }
.text-xl { font-size: var(--font-size-xl); }
.text-2xl { font-size: var(--font-size-2xl); }

.text-red { color: var(--primary-red); }
.text-black { color: var(--black); }
.text-white { color: var(--white); }
.text-gray { color: var(--medium-gray); }

.font-light { font-weight: 300; }
.font-normal { font-weight: 400; }
.font-medium { font-weight: 500; }
.font-semibold { font-weight: 600; }
.font-bold { font-weight: 700; }

/* Button Components */
.btn {
  display: inline-block;
  padding: var(--spacing-md) var(--spacing-xl);
  border: none;
  border-radius: var(--radius-xl);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  font-weight: 600;
  text-align: center;
  text-decoration: none;
  cursor: pointer;
  transition: all var(--transition-normal);
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--red-gradient);
  color: var(--white);
  box-shadow: var(--shadow-md);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
  color: var(--white);
}

.btn-secondary {
  background: transparent;
  color: var(--primary-red);
  border: 2px solid var(--primary-red);
}

.btn-secondary:hover {
  background: var(--primary-red);
  color: var(--white);
  transform: translateY(-2px);
}

.btn-outline {
  background: transparent;
  color: var(--black);
  border: 2px solid var(--black);
}

.btn-outline:hover {
  background: var(--black);
  color: var(--white);
}

.btn-white {
  background: var(--white);
  color: var(--primary-red);
  box-shadow: var(--shadow-md);
}

.btn-white:hover {
  background: var(--background-gray);
  color: var(--secondary-red);
}

/* Card Components */
.card {
  background: var(--white);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-md);
  overflow: hidden;
  transition: all var(--transition-normal);
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: var(--shadow-xl);
}

.card-header {
  padding: var(--spacing-lg);
  border-bottom: 1px solid var(--light-gray);
}

.card-body {
  padding: var(--spacing-lg);
}

.card-footer {
  padding: var(--spacing-lg);
  border-top: 1px solid var(--light-gray);
  background: var(--background-gray);
}

/* Form Components */
.form-group {
  margin-bottom: var(--spacing-lg);
}

.form-label {
  display: block;
  margin-bottom: var(--spacing-sm);
  font-weight: 600;
  color: var(--black);
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--spacing-md);
  border: 2px solid var(--light-gray);
  border-radius: var(--radius-md);
  font-family: var(--font-family);
  font-size: var(--font-size-base);
  transition: border-color var(--transition-normal);
  background: var(--white);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-red);
  box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-textarea {
  resize: vertical;
  min-height: 120px;
}

/* Navigation Styles */
.navbar {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  z-index: 1000;
  padding: calc(var(--spacing-md) + 5px) 0;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-normal);
}

.navbar.scrolled {
  background: rgba(255, 255, 255, 0.98);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.15);
}

.nav-container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
  display: flex;
  justify-content: center;
  align-items: center;
  position: relative;
}

.nav-logo {
  position: absolute;
  left: var(--spacing-lg);
}

.nav-logo img {
  height: 50px;
  width: auto;
  object-fit: contain;
  transition: all var(--transition-normal);
}

.nav-logo a {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.nav-logo a:hover img {
  opacity: 0.9;
  transform: scale(1.05);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: var(--spacing-xl);
  margin: 0;
}

.nav-link {
  color: var(--dark-gray);
  font-weight: 500;
  transition: color var(--transition-normal);
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--primary-red);
}

.nav-link::after {
  content: '';
  position: absolute;
  width: 0;
  height: 2px;
  bottom: -5px;
  left: 0;
  background-color: var(--primary-red);
  transition: width var(--transition-normal);
}

.nav-link:hover::after,
.nav-link.active::after {
  width: 100%;
}

/* Mobile Navigation */
.hamburger {
  display: none;
  flex-direction: column;
  cursor: pointer;
  padding: var(--spacing-sm);
}

.bar {
  width: 25px;
  height: 3px;
  background-color: var(--dark-gray);
  margin: 3px 0;
  transition: var(--transition-normal);
}

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

.hamburger.active .bar:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}

.hamburger.active .bar:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: var(--red-gradient);
  color: var(--white);
  padding: 100px 0 var(--spacing-3xl);
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 100 100"><defs><pattern id="grain" width="100" height="100" patternUnits="userSpaceOnUse"><circle cx="50" cy="50" r="1" fill="rgba(255,255,255,0.1)"/></pattern></defs><rect width="100" height="100" fill="url(%23grain)"/></svg>');
  opacity: 0.3;
}

.hero-content {
  position: relative;
  z-index: 2;
}

.hero h1 {
  color: var(--white);
  margin-bottom: var(--spacing-lg);
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.hero p {
  color: rgba(255, 255, 255, 0.9);
  font-size: var(--font-size-lg);
  margin-bottom: var(--spacing-xl);
}

/* Section Styles */
.section {
  padding: var(--spacing-3xl) 0;
}

.section-header {
  text-align: center;
  margin-bottom: var(--spacing-3xl);
}

.section-title {
  color: var(--black);
  margin-bottom: var(--spacing-md);
}

.section-subtitle {
  color: var(--medium-gray);
  font-size: var(--font-size-lg);
  max-width: 600px;
  margin: 0 auto;
}

/* Background Variations */
.bg-white { background-color: var(--white); }
.bg-gray { background-color: var(--background-gray); }
.bg-red { background-color: var(--primary-red); }
.bg-black { background-color: var(--black); }

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

@keyframes slideInRight {
  from {
    transform: translateX(100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
  }
  50% {
    transform: scale(1.05);
  }
}

.fade-in-up {
  animation: fadeInUp 0.6s ease-out;
}

.slide-in-right {
  animation: slideInRight 0.3s ease-out;
}

.pulse {
  animation: pulse 2s infinite;
}

/* Utility Classes */
.hidden { display: none; }
.visible { display: block; }

.w-full { width: 100%; }
.h-full { height: 100%; }

.rounded { border-radius: var(--radius-md); }
.rounded-lg { border-radius: var(--radius-lg); }
.rounded-xl { border-radius: var(--radius-xl); }
.rounded-full { border-radius: 50%; }

.shadow-sm { box-shadow: var(--shadow-sm); }
.shadow-md { box-shadow: var(--shadow-md); }
.shadow-lg { box-shadow: var(--shadow-lg); }
.shadow-xl { box-shadow: var(--shadow-xl); }

/* Responsive Design */
@media (max-width: 768px) {
  html, body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    position: relative;
  }

  * {
    max-width: 100%;
  }

  img, video, iframe {
    max-width: 100%;
    height: auto;
  }

  .hamburger {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--white);
    width: 100%;
    max-width: 100vw;
    text-align: center;
    transition: var(--transition-normal);
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-xl) 0;
  }

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

  .nav-menu li {
    margin: var(--spacing-md) 0;
  }

  .nav-logo img {
    height: 40px;
  }

  .hero h1 {
    font-size: var(--font-size-3xl);
  }

  .hero p {
    font-size: var(--font-size-base);
  }

  .grid-cols-2,
  .grid-cols-3,
  .grid-cols-4 {
    grid-template-columns: 1fr;
  }

  .container {
    padding: 0 var(--spacing-md);
    max-width: 100%;
    width: 100%;
  }
}

@media (max-width: 480px) {
  html, body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
  }

  .container {
    padding: 0 var(--spacing-sm);
    max-width: 100%;
    width: 100%;
  }

  .hero h1 {
    font-size: var(--font-size-2xl);
  }

  .btn {
    padding: var(--spacing-sm) var(--spacing-lg);
    font-size: var(--font-size-sm);
  }

  .section {
    padding: var(--spacing-xl) 0;
    max-width: 100vw;
    overflow-x: hidden;
  }
}