/* DeltaAi.solutions - Custom Styles */

:root {
  --primary-green: #00B894;
  --primary-blue: #0984e3;
  --white: #FFFFFF;
  --light-gray: #F8F9FA;
  --dark-gray: #2D3436;
  --gradient: linear-gradient(135deg, var(--primary-green) 0%, var(--primary-blue) 100%);
}

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

body {
  font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  line-height: 1.6;
  color: var(--dark-gray);
}

/* Smooth scrolling */
html {
  scroll-behavior: smooth;
}

/* Custom gradient backgrounds */
.bg-gradient-primary {
  background: var(--gradient);
}

.text-gradient {
  background: var(--gradient);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Header */
.navbar {
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
}

.navbar-brand img {
  height: 40px;
  transition: transform 0.3s ease;
}

.navbar-brand:hover img {
  transform: scale(1.05);
}

.navbar-nav .nav-link {
  font-weight: 500;
  color: var(--dark-gray);
  margin: 0 10px;
  transition: color 0.3s ease;
}

.navbar-nav .nav-link:hover {
  color: var(--primary-blue);
}

.btn-primary-custom {
  background: var(--gradient);
  border: none;
  padding: 10px 25px;
  border-radius: 25px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(0, 184, 148, 0.3);
}

.btn-primary-custom:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 184, 148, 0.4);
}

.btn-outline-primary {
  border-radius: 25px !important;
  font-weight: 600;
  transition: all 0.3s ease;
}

.btn-outline-primary:hover {
  transform: translateY(-2px);
}

/* Language Selector */
.dropdown-menu {
  border-radius: 10px;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.1);
  border: none;
}

.dropdown-item {
  padding: 10px 20px;
  transition: all 0.3s ease;
}

.dropdown-item:hover {
  background: var(--gradient);
  color: white;
}

.dropdown-item.active {
  background: var(--gradient);
  color: white;
}

/* Hero Section */
.hero {
  background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
  min-height: 100vh;
  display: flex;
  align-items: center;
  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="grid" width="10" height="10" patternUnits="userSpaceOnUse"><path d="M 10 0 L 0 0 0 10" fill="none" stroke="%23e9ecef" stroke-width="0.5"/></pattern></defs><rect width="100" height="100" fill="url(%23grid)"/></svg>');
  opacity: 0.5;
}

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

.hero h1 {
  font-size: 3.5rem;
  font-weight: 700;
  margin-bottom: 1.5rem;
  line-height: 1.2;
}

.hero .lead {
  font-size: 1.25rem;
  margin-bottom: 2rem;
  color: #6c757d;
}

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

.hero-image img {
  /*max-width: 100%;*/
  max-width: 400px;
  height: auto;
  border-radius: 25px;
  filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.1));
  animation: float 6s ease-in-out infinite;
}

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

/* Cards */
.card-custom {
  border: none;
  border-radius: 15px;
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.1);
  transition: all 0.3s ease;
  overflow: hidden;
}

.card-custom:hover {
  transform: translateY(-10px);
  box-shadow: 0 15px 40px rgba(0, 0, 0, 0.15);
}

.card-icon {
  width: 60px;
  height: 60px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
  color: white;
  font-size: 1.5rem;
}

/* Challenge cards with different colors */
.card-icon.bg-danger {
  background: linear-gradient(135deg, #dc3545 0%, #c82333 100%);
}

.card-icon.bg-warning {
  background: linear-gradient(135deg, #ffc107 0%, #e0a800 100%);
}

.card-icon.bg-info {
  background: linear-gradient(135deg, #17a2b8 0%, #138496 100%);
}

.card-icon.bg-secondary {
  background: linear-gradient(135deg, #6c757d 0%, #5a6268 100%);
}

/* Services Section */
.services {
  background: var(--light-gray);
}

.service-card {
  background: white;
  border-radius: 15px;
  padding: 2rem;
  text-align: center;
  box-shadow: 0 5px 25px rgba(0, 0, 0, 0.08);
  transition: all 0.3s ease;
  height: 100%;
}

.service-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 35px rgba(0, 0, 0, 0.12);
}

.service-icon {
  width: 80px;
  height: 80px;
  background: var(--gradient);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1.5rem;
  color: white;
  font-size: 2rem;
}

/* Contact Form */
.contact-form {
  background: white;
  border-radius: 15px;
  padding: 3rem;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.1);
}

.form-control {
  border: 2px solid #e9ecef;
  border-radius: 10px;
  padding: 12px 15px;
  transition: all 0.3s ease;
}

.form-control:focus {
  border-color: var(--primary-blue);
  box-shadow: 0 0 0 0.2rem rgba(9, 132, 227, 0.25);
}

/* Footer */
.footer {
  background: #131925;
  color: white;
}

.footer .text-muted {
  color: #adb5bd !important;
}

.footer a {
  color: #adb5bd;
  text-decoration: none;
  transition: color 0.3s ease;
}

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

.footer .text-primary {
  color: var(--primary-green) !important;
}

.footer .text-primary:hover {
  color: var(--primary-blue) !important;
}

/* Animations */
.fade-in {
  opacity: 0;
  transform: translateY(30px);
  transition: all 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Responsive */
@media (max-width: 768px) {
  .hero h1 {
    font-size: 2.5rem;
  }
  
  .hero .lead {
    font-size: 1.1rem;
  }
  
  .contact-form {
    padding: 2rem;
  }
}

@media (max-width: 576px) {
  .hero h1 {
    font-size: 2rem;
  }
  
  .service-card {
    padding: 1.5rem;
  }
}