@import url('colors.css');
@import url('typography.css');

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

body {
  font-family: var(--font-family);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-body);
  overflow-x: hidden;
  overflow-y: auto;
  width: 100vw;
  position: relative;
}

.background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #0a0f1f 0%, var(--color-primary) 40%, var(--color-dark) 100%);
}

.background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: 
    radial-gradient(circle at 10% 30%, rgba(68, 112, 145, 0.15) 0%, transparent 40%),
    radial-gradient(circle at 90% 70%, rgba(17, 35, 102, 0.2) 0%, transparent 50%),
    linear-gradient(180deg, transparent 0%, rgba(0, 0, 0, 0.3) 100%);
  animation: pulse 15s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
  }
  50% {
    opacity: 0.8;
  }
}

.container {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  min-height: 100vh;
  padding: 4rem 6rem;
  color: white;
}

.logo {
  margin-bottom: 2rem;
  animation: fadeInLeft 1s ease-out;
}

.logo img {
  max-width: 180px;
  height: auto;
  filter: drop-shadow(0 4px 12px rgba(0, 0, 0, 0.4));
}

.content {
  max-width: 100%;
  text-align: left;
  animation: fadeInLeft 1s ease-out 0.3s both;
}

.content h1 {
  font-size: var(--font-size-h1);
  font-weight: var(--font-weight-headlines);
  margin-bottom: 1.5rem;
  text-shadow: 0 4px 12px rgba(0, 0, 0, 0.5);
  letter-spacing: -0.02em;
  line-height: 1.1;
  max-width: 90%;
}

.content .tagline {
  font-size: var(--font-size-h3);
  font-weight: var(--font-weight-subtitles);
  margin-bottom: 1.5rem;
  opacity: 0.9;
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
  color: var(--color-cool-gray);
  max-width: 70%;
}

.content .description {
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-body);
  opacity: 0.8;
  line-height: 1.7;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: 2rem;
  max-width: 60%;
}

.language-switcher {
  position: fixed;
  top: 2rem;
  right: 2rem;
  display: flex;
  gap: 0.5rem;
  z-index: 100;
}

.lang-btn {
  background: rgba(255, 255, 255, 0.2);
  border: 2px solid rgba(255, 255, 255, 0.3);
  color: white;
  padding: 0.5rem 1rem;
  border-radius: 8px;
  cursor: pointer;
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-buttons);
  text-transform: uppercase;
  transition: all 0.3s ease;
  backdrop-filter: blur(10px);
}

.lang-btn:hover {
  background: rgba(255, 255, 255, 0.3);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-2px);
}

.lang-btn.active {
  background: rgba(255, 255, 255, 0.9);
  color: var(--color-primary);
  border-color: white;
}

@keyframes fadeInLeft {
  from {
    opacity: 0;
    transform: translateX(-50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

@keyframes fadeInRight {
  from {
    opacity: 0;
    transform: translateX(50px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

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

.cta-button {
  margin-top: 1rem;
  position: relative;
  padding: 1.25rem 3rem;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-buttons);
  color: white;
  background: rgba(255, 255, 255, 0.05);
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-radius: 0;
  cursor: pointer;
  transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
  backdrop-filter: blur(10px);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  overflow: hidden;
}

.cta-button::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
  transition: left 0.5s;
}

.cta-button:hover::before {
  left: 100%;
}

.cta-button:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.6);
  box-shadow: 
    0 0 20px rgba(255, 255, 255, 0.1),
    inset 0 0 20px rgba(255, 255, 255, 0.05);
  transform: translateY(-2px);
}

.cta-button::after {
  content: '';
  position: absolute;
  top: -2px;
  left: -2px;
  right: -2px;
  bottom: -2px;
  background: linear-gradient(45deg, var(--color-secondary), var(--color-primary), var(--color-secondary));
  z-index: -1;
  opacity: 0;
  transition: opacity 0.4s;
}

.cta-button:hover::after {
  opacity: 0.3;
}

.modal {
  display: none;
  position: fixed;
  z-index: 1000;
  left: 0;
  top: 0;
  width: 100%;
  height: 100%;
  background-color: rgba(0, 0, 0, 0.6);
  backdrop-filter: blur(5px);
  align-items: center;
  justify-content: center;
  animation: fadeIn 0.3s ease-out;
}

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

.modal-content {
  background: white;
  padding: 2.5rem;
  border-radius: 16px;
  max-width: 500px;
  width: 90%;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3);
  animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
  from {
    transform: translateY(50px);
    opacity: 0;
  }
  to {
    transform: translateY(0);
    opacity: 1;
  }
}

.modal-content h2 {
  color: var(--color-primary);
  margin-bottom: 0.5rem;
  font-size: var(--font-size-h2);
  font-weight: var(--font-weight-headlines);
}

.form-subtitle {
  color: var(--color-dark);
  opacity: 0.7;
  margin-bottom: 2rem;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-body);
}

.close-btn {
  position: absolute;
  right: 1.5rem;
  top: 1.5rem;
  font-size: 2rem;
  font-weight: 300;
  color: var(--color-cool-gray);
  cursor: pointer;
  transition: color 0.3s ease;
  line-height: 1;
}

.close-btn:hover {
  color: var(--color-dark);
}

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

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--color-dark);
  font-weight: var(--font-weight-buttons);
  font-size: var(--font-size-small);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.75rem;
  border: 2px solid var(--color-neutral);
  border-radius: 8px;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-body);
  font-family: var(--font-family);
  transition: border-color 0.3s ease;
  background: var(--color-background);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-secondary);
}

.form-group textarea {
  resize: vertical;
  min-height: 100px;
}

.error-message {
  display: block;
  color: #e74c3c;
  font-size: var(--font-size-micro);
  font-weight: var(--font-weight-body);
  margin-top: 0.25rem;
  min-height: 1.2em;
}

.form-actions {
  display: flex;
  gap: 1rem;
  margin-top: 2rem;
  justify-content: flex-end;
}

.btn-primary,
.btn-secondary {
  padding: 0.75rem 1.5rem;
  border: none;
  border-radius: 8px;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-buttons);
  cursor: pointer;
  transition: all 0.3s ease;
}

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

.btn-primary:hover:not(:disabled) {
  background: var(--color-secondary);
  transform: translateY(-2px);
}

.btn-primary:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

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

.btn-secondary:hover {
  background: var(--color-background);
  border-color: var(--color-cool-gray);
}

.message-modal {
  text-align: center;
  max-width: 400px;
}

.message-modal h2 {
  margin-bottom: 1rem;
}

.message-modal p {
  color: var(--color-dark);
  margin-bottom: 2rem;
  line-height: 1.6;
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-body);
}

.message-modal .btn-primary {
  width: 100%;
}

@media (max-width: 1024px) {
  .container {
    padding: 3rem 2rem;
  }
  
  .content h1 {
    max-width: 100%;
  }
  
  .content .tagline {
    max-width: 85%;
  }
  
  .content .description {
    max-width: 80%;
  }
}

@media (max-width: 768px) {
  .container {
    padding: 2rem 1.5rem;
  }
  
  .content h1 {
    font-size: 36px;
    max-width: 100%;
  }
  
  .content .tagline {
    font-size: 20px;
    max-width: 100%;
  }
  
  .content .description {
    font-size: var(--font-size-body);
    max-width: 100%;
  }
  
  .language-switcher {
    top: 1rem;
    right: 1rem;
  }
  
  .logo img {
    max-width: 150px;
  }
  
  .cta-button {
    padding: 1rem 2rem;
    font-size: var(--font-size-small);
  }
  
  .demo-section {
    padding: 3rem 1.5rem;
  }
  
  .modal-content {
    padding: 2rem 1.5rem;
  }
  
  .form-actions {
    flex-direction: column-reverse;
  }
  
  .btn-primary,
  .btn-secondary {
    width: 100%;
  }
}