/* ===================================
   REVIA GLOBAL SOLUTIONS
   Design System & Styles
   =================================== */

/* Google Fonts Import */
@import url("https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap");

/* ===================================
   CSS CUSTOM PROPERTIES
   =================================== */

:root {
  /* Purple Color Palette */
  --primary-purple: #7c3aed;
  --purple-dark: #5b21b6;
  --purple-light: #a78bfa;
  --purple-lighter: #ddd6fe;
  --purple-gradient: linear-gradient(135deg, #7c3aed 0%, #a78bfa 100%);

  /* Neutral Colors */
  --white: #ffffff;
  --gray-50: #f9fafb;
  --gray-100: #f3f4f6;
  --gray-200: #e5e7eb;
  --gray-300: #d1d5db;
  --gray-400: #9ca3af;
  --gray-500: #6b7280;
  --gray-600: #4b5563;
  --gray-700: #374151;
  --gray-800: #1f2937;
  --gray-900: #111827;

  /* Semantic Colors */
  --success: #10b981;
  --error: #ef4444;
  --warning: #f59e0b;

  /* Typography */
  --font-body: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-heading: "Outfit", -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;

  /* Spacing */
  --spacing-xs: 0.5rem;
  --spacing-sm: 1rem;
  --spacing-md: 1.5rem;
  --spacing-lg: 2rem;
  --spacing-xl: 3rem;
  --spacing-2xl: 4rem;
  --spacing-3xl: 6rem;

  /* Border Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 16px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
  --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1),
    0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1),
    0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1),
    0 10px 10px -5px rgba(0, 0, 0, 0.04);
  --shadow-purple: 0 10px 30px -5px rgba(124, 58, 237, 0.3);

  /* Transitions */
  --transition: all 0.3s ease;
  --transition-fast: all 0.15s ease;
}

/* ===================================
   RESET & BASE STYLES
   =================================== */

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--gray-800);
  background-color: var(--gray-50);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

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

ul {
  list-style: none;
}

/* ===================================
   TYPOGRAPHY
   =================================== */

h1,
h2,
h3,
h4,
h5,
h6 {
  font-family: var(--font-heading);
  font-weight: 700;
  line-height: 1.2;
  color: var(--gray-900);
  margin-bottom: var(--spacing-md);
}

h1 {
  font-size: 3.5rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

h2 {
  font-size: 2.5rem;
  font-weight: 700;
}

h3 {
  font-size: 2rem;
  font-weight: 600;
}

h4 {
  font-size: 1.5rem;
  font-weight: 600;
}

h5 {
  font-size: 1.25rem;
  font-weight: 600;
}

h6 {
  font-size: 1rem;
  font-weight: 600;
}

p {
  margin-bottom: var(--spacing-sm);
  color: var(--gray-600);
}

.text-large {
  font-size: 1.25rem;
  line-height: 1.8;
}

.text-small {
  font-size: 0.875rem;
}

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

/* ===================================
   LAYOUT COMPONENTS
   =================================== */

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

.container-wide {
  max-width: 1400px;
  margin: 0 auto;
  padding: 0 var(--spacing-lg);
}

.section {
  padding: var(--spacing-3xl) 0;
}

.section-sm {
  padding: var(--spacing-2xl) 0;
}

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

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

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

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

/* Flexbox Utilities */
.flex {
  display: flex;
}

.flex-center {
  display: flex;
  align-items: center;
  justify-content: center;
}

.flex-between {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.flex-col {
  display: flex;
  flex-direction: column;
}

/* ===================================
   NAVIGATION
   =================================== */


.navbar {
  background-color: rgba(255, 255, 255, 0.95); /* Slightly transparent white */
  backdrop-filter: blur(10px); /* Glass effect */
  box-shadow: var(--shadow-sm);
  position: sticky;
  top: 0;
  z-index: 1000;
  transition: var(--transition);
}


.navbar-container {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--spacing-sm) var(--spacing-lg);
  max-width: 1400px;
  margin: 0 auto;
}

.logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--primary-purple);
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.logo-icon {
  width: 40px;
  height: 40px;
}

.nav-menu {
  display: flex;
  gap: var(--spacing-lg);
  align-items: center;
}

.nav-link {
  color: var(--gray-700);
  font-weight: 500;
  padding: 0.5rem 1rem;
  border-radius: var(--radius-sm);
  transition: var(--transition);
}

.nav-link:hover {
  color: var(--primary-purple);
  background-color: var(--purple-lighter);
}

.nav-link.active {
  color: var(--primary-purple);
  font-weight: 600;
}

.menu-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
}

.menu-toggle span {
  display: block;
  width: 25px;
  height: 3px;
  background-color: var(--gray-800);
  margin: 5px 0;
  transition: var(--transition);
  border-radius: 2px;
}

/* ===================================
   BUTTONS
   =================================== */

.btn {
  display: inline-block;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 600;
  text-align: center;
  border: none;
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: var(--transition);
  text-decoration: none;
}

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

.btn-primary:hover {
  background-color: var(--purple-dark);
  transform: translateY(-2px);
  box-shadow: var(--shadow-purple);
}

.btn-primary:active {
  transform: translateY(0);
}

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

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

.btn-large {
  padding: 1.125rem 2.5rem;
  font-size: 1.125rem;
}

/* ===================================
   CARDS
   =================================== */

.card {
  background-color: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--spacing-lg);
  box-shadow: var(--shadow-md);
  transition: var(--transition);
  height: 100%;
}

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

.card-icon {
  width: 60px;
  height: 60px;
  background-color: var(--purple-lighter);
  color: var(--primary-purple);
  border-radius: var(--radius-md);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 2rem;
  margin-bottom: var(--spacing-md);
}

.card-title {
  font-size: 1.5rem;
  margin-bottom: var(--spacing-sm);
  color: var(--gray-900);
}

.card-text {
  color: var(--gray-600);
  line-height: 1.7;
}

/* ===================================
   HERO SECTION
   =================================== */

.hero {
  /* Full screen height */
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  
  /* Background Image */
  background: url('assets/hero-bg.png') no-repeat center center/cover;
  position: relative;
  overflow: hidden;
  color: var(--white);
  
  /* Ensure it sits nicely with sticky navbar */
  margin-top: -80px; /* Pull up behind navbar if we want transparent navbar effect, assuming navbar height approx 80px */
  padding-top: 80px; /* Compensate padding */
}

/* Dark Overlay */
.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(17, 24, 39, 0.7); /* Dark overlay for readability */
  z-index: 1;
}

/* Purple Gradient Overlay Effect (Optional mixed with image) */
.hero::after {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.4) 0%, rgba(167, 139, 250, 0.2) 100%);
  z-index: 2;
}

.hero-content {
  position: relative;
  z-index: 3; /* Above overlays */
  text-align: center;
  max-width: 900px;
  margin: 0 auto;
  padding: var(--spacing-xl) var(--spacing-lg);
}

.hero h1 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 4rem;
  font-weight: 800;
  text-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
  letter-spacing: -0.02em;
}

.hero p {
  color: rgba(255, 255, 255, 0.95);
  font-size: 1.5rem;
  margin-bottom: var(--spacing-xl);
  line-height: 1.6;
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
  max-width: 800px;
  margin-left: auto;
  margin-right: auto;
}

/* ===================================
   FORMS
   =================================== */

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

.form-label {
  display: block;
  margin-bottom: var(--spacing-xs);
  font-weight: 600;
  color: var(--gray-700);
}

.form-input,
.form-textarea {
  width: 100%;
  padding: 0.875rem 1rem;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--gray-800);
  background-color: var(--white);
  border: 2px solid var(--gray-300);
  border-radius: var(--radius-md);
  transition: var(--transition);
}

.form-input:focus,
.form-textarea:focus {
  outline: none;
  border-color: var(--primary-purple);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

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

.form-error {
  color: var(--error);
  font-size: 0.875rem;
  margin-top: var(--spacing-xs);
  display: none;
}

.form-error.active {
  display: block;
}

.form-success {
  background-color: var(--success);
  color: var(--white);
  padding: var(--spacing-md);
  border-radius: var(--radius-md);
  margin-bottom: var(--spacing-md);
  display: none;
}

.form-success.active {
  display: block;
}

/* ===================================
   FOOTER
   =================================== */

.footer {
  background-color: var(--gray-900);
  color: var(--gray-300);
  padding: var(--spacing-2xl) 0 var(--spacing-lg);
}

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

.footer-section h3 {
  color: var(--white);
  margin-bottom: var(--spacing-md);
  font-size: 1.25rem;
}

.footer-links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer-links a {
  color: var(--gray-400);
  transition: var(--transition);
}

.footer-links a:hover {
  color: var(--primary-purple);
}

.footer-bottom {
  border-top: 1px solid var(--gray-800);
  padding-top: var(--spacing-md);
  text-align: center;
  color: var(--gray-500);
}

/* ===================================
   ANIMATIONS
   =================================== */

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

@keyframes fadeIn {
  from {
    opacity: 0;
  }
  to {
    opacity: 1;
  }
}

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

.fade-in {
  animation: fadeIn 0.6s ease-out forwards;
}

/* Scroll-triggered animations */
.scroll-reveal {
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.scroll-reveal.revealed {
  opacity: 1;
  transform: translateY(0);
}

/* ===================================
   UTILITY CLASSES
   =================================== */

.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);
}

.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);
}

.text-purple {
  color: var(--primary-purple);
}
.text-white {
  color: var(--white);
}
.text-gray {
  color: var(--gray-600);
}

.bg-white {
  background-color: var(--white);
}
.bg-gray {
  background-color: var(--gray-50);
}

/* ===================================
   RESPONSIVE DESIGN
   =================================== */

@media (max-width: 1024px) {
  h1 {
    font-size: 2.5rem;
  }
  h2 {
    font-size: 2rem;
  }
  h3 {
    font-size: 1.75rem;
  }

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

@media (max-width: 768px) {
  .menu-toggle {
    display: block;
  }

  .nav-menu {
    position: fixed;
    left: -100%;
    top: 70px;
    flex-direction: column;
    background-color: var(--white);
    width: 100%;
    text-align: center;
    transition: 0.3s;
    box-shadow: var(--shadow-lg);
    padding: var(--spacing-lg) 0;
  }

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

  .nav-link {
    width: 100%;
    padding: var(--spacing-sm);
  }

  h1 {
    font-size: 2rem;
  }
  h2 {
    font-size: 1.75rem;
  }

  .hero h1 {
    font-size: 2rem;
  }
  .hero p {
    font-size: 1rem;
  }

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

  .section {
    padding: var(--spacing-2xl) 0;
  }

  .btn-large {
    padding: 1rem 2rem;
    font-size: 1rem;
  }
}

@media (max-width: 480px) {
  h1 {
    font-size: 1.75rem;
  }

  .container,
  .container-wide {
    padding: 0 var(--spacing-sm);
  }

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