@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  /* Colors - White Theme */
  --color-primary: #ffffff;
  /* Main Background */
  --color-primary-light: #f3f4f6;
  /* Secondary Background (Light Grey) */
  --color-accent: #0066cc;
  /* Strong Blue for accents */
  --color-text-main: #1f2937;
  /* Dark Grey for body text */
  --color-text-secondary: #4b5563;
  /* Medium Grey for secondary text */
  --color-heading: #111827;
  /* Near Black for headings */
  --color-white: #ffffff;
  --color-dark: #111827;
  /* Used for contrast elements */
  --color-background: #ffffff;

  /* Gradients */
  --gradient-hero: linear-gradient(135deg, #f3f4f6 0%, #ffffff 100%);

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

  /* Shadows */
  --shadow-card: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
  --shadow-hover: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
  --shadow-soft: 0 20px 40px -10px rgba(0, 0, 0, 0.1);

  /* Transitions */
  --transition: all 0.25s cubic-bezier(0.645, 0.045, 0.355, 1);
}

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

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--color-background);
  color: var(--color-text-main);
  line-height: 1.6;
  overflow-x: hidden;
}

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

ul {
  list-style: none;
}

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

/* Typography */
h1,
h2,
h3,
h4,
h5,
h6 {
  color: var(--color-heading);
  font-weight: 700;
  line-height: 1.2;
}

h1 {
  font-size: clamp(2.5rem, 5vw, 4rem);
}

h2 {
  font-size: clamp(2rem, 4vw, 3rem);
  margin-bottom: var(--spacing-lg);
}

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

/* Optimized Page Animations */
.animate-on-scroll {
  opacity: 0;
  will-change: opacity, transform;
  transition: opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1), transform 0.5s cubic-bezier(0.22, 1, 0.36, 1);
}

/* Animation Variants */
.fade-up {
  transform: translateY(20px);
}

.fade-in {
  transform: scale(0.98);
}

/* Active State */
.animate-on-scroll.visible {
  opacity: 1;
  transform: translateY(0) scale(1);
}

/* Reduced Motion - Accessibility */
@media (prefers-reduced-motion: reduce) {
  .animate-on-scroll {
    transition: none;
    opacity: 1;
    transform: none;
    animation: none;
  }
}

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

.btn {
  display: inline-block;
  padding: 0.8rem 1.6rem;
  border-radius: 4px;
  font-weight: 500;
  cursor: pointer;
  border: 1px solid transparent;
  transition: var(--transition);
}

.btn-primary {
  background-color: var(--color-accent);
  color: var(--color-white);
  border-color: var(--color-accent);
}

.btn-primary:hover {
  background-color: #0052a3;
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.btn-secondary {
  background-color: var(--color-white);
  color: var(--color-accent);
  border: 1px solid var(--color-accent);
}

.btn-secondary:hover {
  background-color: #ebf5ff;
  transform: translateY(-2px);
}

.section {
  padding: 6rem 0;
}

/* Header */
header {
  padding: 1.5rem 0;
  position: fixed;
  width: 100%;
  top: 0;
  z-index: 1000;
  background-color: rgba(255, 255, 255, 0.95);
  box-shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1);
  backdrop-filter: blur(10px);
  transition: var(--transition);
}

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

.logo {
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--color-accent);
  letter-spacing: 1px;
}

.nav-links {
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--color-text-secondary);
  font-weight: 500;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--color-accent);
}

/* Hero */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  /* Light overlay on image */
  background:
    linear-gradient(rgba(255, 255, 255, 0.85), rgba(255, 255, 255, 0.7)),
    url('../images/hero.png') no-repeat center center/cover;
}

.hero-content {
  max-width: 800px;
}

.hero-tagline {
  color: var(--color-accent);
  font-family: monospace;
  margin-bottom: var(--spacing-md);
  display: block;
  font-weight: 600;
}

.hero h1 {
  margin-bottom: var(--spacing-md);
  color: var(--color-heading);
}

.hero p {
  font-size: 1.25rem;
  color: var(--color-text-secondary);
  max-width: 600px;
  margin-bottom: var(--spacing-xl);
}

.hero-btns {
  display: flex;
  gap: var(--spacing-md);
}

/* About Section */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-img img {
  border-radius: 8px;
  box-shadow: var(--shadow-hover);
  transition: var(--transition);
}

.about-img:hover img {
  transform: translateY(-5px);
}

/* Why Choose Us */
.features-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  text-align: center;
}

.feature-item {
  padding: 2rem;
  background: var(--color-white);
  border: 1px solid #e5e7eb;
  border-radius: 8px;
  box-shadow: var(--shadow-card);
  transition: var(--transition);
}

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

.feature-icon {
  font-size: 2.5rem;
  color: var(--color-accent);
  margin-bottom: 1rem;
}

/* Industries */
.industries-list {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 1.5rem;
}

.industry-pill {
  padding: 0.8rem 1.5rem;
  background: var(--color-white);
  border: 1px solid #e5e7eb;
  border-radius: 50px;
  color: var(--color-text-secondary);
  font-weight: 500;
  transition: var(--transition);
  box-shadow: var(--shadow-card);
}

.industry-pill:hover {
  border-color: var(--color-accent);
  color: var(--color-accent);
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

/* Process */
.process-steps {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 2rem;
}

.process-step {
  flex: 1;
  min-width: 200px;
  text-align: center;
  position: relative;
}

.step-number {
  font-size: 4rem;
  font-weight: 700;
  color: #e5e7eb;
  /* Light grey for number background */
  margin-bottom: -2rem;
  z-index: 0;
  position: relative;
  line-height: 1;
}

.step-title {
  color: var(--color-heading);
  font-weight: 700;
  margin-bottom: 0.5rem;
  z-index: 1;
  position: relative;
  padding-top: 1rem;
}

/* CTA */
.cta-section {
  text-align: center;
  background: linear-gradient(rgba(0, 86, 179, 0.9), rgba(0, 86, 179, 0.9)),
    url('../images/why_us.png') no-repeat center center/cover;
  color: var(--color-white);
}

.cta-container {
  max-width: 600px;
  margin: 0 auto;
}

.cta-section h2,
.cta-section p {
  color: var(--color-white);
}

.cta-section .btn-primary {
  background-color: var(--color-white);
  color: var(--color-accent);
  border-color: var(--color-white);
}

.cta-section .btn-primary:hover {
  background-color: #f3f4f6;
}

/* Footer */
footer {
  background-color: var(--color-primary-light);
  padding: 4rem 0;
  text-align: center;
  color: var(--color-text-secondary);
  font-size: 0.9rem;
  border-top: 1px solid #e5e7eb;
}

.footer-links {
  margin: 1.5rem 0;
  display: flex;
  justify-content: center;
  gap: 2rem;
}

.footer-links a {
  color: var(--color-text-main);
  font-weight: 500;
}

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



.footer-contact {
  text-align: left;
  margin-top: 1rem;
}

.footer-contact h4 {
  color: var(--color-accent);
  margin-bottom: 0.5rem;
  font-size: 1rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-secondary);
}

.contact-item:hover {
  color: var(--color-accent);
}

.contact-icon {
  width: 20px;
  height: 20px;
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
}

.contact-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

/* Checklist Grid */
.checklist-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem 2rem;
  list-style: none;
  padding: 0;
  margin-top: 2rem;
}

.checklist-item {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.05rem;
  color: rgba(255, 255, 255, 0.9);
}

.checklist-icon {
  width: 20px;
  height: 20px;
  color: #3b82f6;
  /* Lighter blue for dark background visibility */
  flex-shrink: 0;
}

.checklist-icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

/* Application Form */
.contact-form-container {
  background-color: var(--color-white);
  border: 1px solid #e5e7eb;
  transition: var(--transition);
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-control {
  width: 100%;
  padding: 1rem;
  background-color: #f9fafb;
  border: 1px solid #d1d5db;
  border-radius: 4px;
  color: var(--color-text-main);
  font-family: inherit;
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: var(--color-white);
  box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

/* Drag & Drop Zone */
.drop-zone {
  border: 2px dashed #d1d5db;
  border-radius: 8px;
  padding: 2rem;
  text-align: center;
  background-color: #f9fafb;
  cursor: pointer;
  transition: var(--transition);
  position: relative;
}

.drop-zone:hover,
.drop-zone.drag-active {
  border-color: var(--color-accent);
  background-color: #eff6ff;
  /* Light Blue */
}

.drop-zone-icon {
  font-size: 2.5rem;
  display: block;
  margin-bottom: 0.5rem;
  color: #9ca3af;
}

.drop-zone-text {
  color: var(--color-text-secondary);
  font-size: 0.95rem;
}

.drop-zone-text span {
  color: var(--color-accent);
  text-decoration: underline;
  cursor: pointer;
}

.file-info {
  margin-top: 1rem;
  padding: 0.5rem;
  background-color: #e5e7eb;
  border-radius: 4px;
  font-size: 0.9rem;
  color: var(--color-heading);
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.file-info.hidden {
  display: none;
}

/* Form Status */
.form-status {
  margin-top: 1rem;
  font-size: 0.95rem;
  text-align: center;
}

.form-status.success {
  color: #10b981;
  /* Green */
}

.form-status.error {
  color: #ef4444;
  /* Red */
}

.form-status.info {
  color: #1e40af;
  /* Dark Blue */
  background-color: #dbeafe;
  /* Light Blue */
  padding: 0.75rem;
  border-radius: 4px;
  border: 1px solid #93c5fd;
}

/* Responsive */
@media (max-width: 768px) {
  .about-grid {
    grid-template-columns: 1fr;
  }



  .nav-links {
    display: none;
    /* Mobile menu implementation needed later */
  }
}