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

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

body {
  font-family: 'Inter', sans-serif;
  background: linear-gradient(135deg, #0a3d62 0%, #2c5aa0 25%, #1e3799 50%, #3c6382 75%, #40739e 100%);
  min-height: 100vh;
  padding: 20px;
  color: #2d3748;
  position: relative;
  overflow-x: hidden;
}

.background-animation {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -1;
  background: linear-gradient(135deg, #0a3d62 0%, #2c5aa0 25%, #1e3799 50%, #3c6382 75%, #40739e 100%);
  background-size: 400% 400%;
  animation: gradientShift 20s ease infinite;
}

.wave-background {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: -2;
  background: #0a3d62;
}

.wave-background::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 200%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M0,0V46.29c47.79,22.2,103.59,32.17,158,28,70.36-5.37,136.33-33.31,206.8-37.5C438.64,32.43,512.34,53.67,583,72.05c69.27,18,138.3,24.88,209.4,13.08,36.15-6,69.85-17.84,104.45-29.34C989.49,25,1113-14.29,1200,52.47V0Z' opacity='.25' fill='%232c5aa0'/%3E%3Cpath d='M0,0V15.81C13,36.92,27.64,56.86,47.69,72.05,99.41,111.27,165,111,224.58,91.58c31.15-10.15,60.09-26.07,89.67-39.8,40.92-19,84.73-46,130.83-49.67,36.26-2.85,70.9,9.42,98.6,31.56,31.77,25.39,62.32,62,103.63,73,40.44,10.79,81.35-6.69,119.13-24.28s75.16-39,116.92-43.05c59.73-5.85,113.28,22.88,168.9,38.84,30.2,8.66,59,6.17,87.09-7.5,22.43-10.89,48-26.93,60.65-49.24V0Z' opacity='.5' fill='%231e3799'/%3E%3Cpath d='M0,0V5.63C149.93,59,314.09,71.32,475.83,42.57c43-7.64,84.23-20.12,127.61-26.46,59-8.63,112.48,12.24,165.56,35.4C827.93,77.22,886,95.24,951.2,90c86.53-7,172.46-45.71,248.8-84.81V0Z' fill='%233c6382'/%3E%3C/svg%3E") repeat-x;
  background-size: 1200px 120px;
  animation: waveMove 15s ease-in-out infinite;
}

.wave-background::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 200%;
  height: 100%;
  background: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 1200 120' preserveAspectRatio='none'%3E%3Cpath d='M321.39,56.44c58-10.79,114.16-30.13,172-41.86,82.39-16.72,168.19-17.73,250.45-.39C823.78,31,906.67,72,985.66,92.83c70.05,18.48,146.53,26.09,214.34,3V0H0V27.35A600.21,600.21,0,0,0,321.39,56.44Z' fill='%232c5aa0'/%3E%3C/svg%3E") repeat-x;
  background-size: 1200px 120px;
  animation: waveMove 12s ease-in-out infinite reverse;
  transform: rotate(180deg);
}

@keyframes waveMove {
  0% {
    transform: translateX(0);
  }
  50% {
    transform: translateX(-50px);
  }
  100% {
    transform: translateX(-100px);
  }
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}



.header {
  text-align: center;
  margin-bottom: 40px;
}

.header h1 {
  font-size: 3rem;
  font-weight: 700;
  color: #ffffff;
  text-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
  margin-bottom: 10px;
  animation: slideInDown 0.8s ease-out;
}

.header p {
  font-size: 1.1rem;
  color: rgba(255, 255, 255, 0.9);
  font-weight: 400;
  animation: slideInDown 0.8s ease-out 0.2s both;
}

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

.container {
  max-width: 1100px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(20px);
  border-radius: 24px;
  padding: 40px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.6);
  animation: slideInUp 0.8s ease-out 0.4s both;
}

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

.main-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: start;
}

.inputs-section {
  background: rgba(248, 250, 252, 0.7);
  padding: 25px;
  border-radius: 16px;
  border: 1px solid rgba(226, 232, 240, 0.5);
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 15px;
  margin-bottom: 20px;
}

.input-group {
  position: relative;
  animation: fadeInUp 0.6s ease-out forwards;
}

.input-group:nth-child(odd) {
  animation-delay: 0.1s;
}

.input-group:nth-child(even) {
  animation-delay: 0.2s;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.input-group label {
  display: block;
  font-weight: 600;
  color: #4a5568;
  margin-bottom: 4px;
  font-size: 12px;
  letter-spacing: 0.025em;
}

.input-wrapper {
  position: relative;
}

.input-wrapper input {
  width: 100%;
  padding: 10px 14px;
  font-size: 14px;
  border: 2px solid #e2e8f0;
  border-radius: 8px;
  background: white;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  font-family: inherit;
  appearance: textfield;
}

.input-wrapper input::-webkit-outer-spin-button,
.input-wrapper input::-webkit-inner-spin-button {
  -webkit-appearance: none;
  margin: 0;
}

.input-wrapper input:focus {
  outline: none;
  border-color: #3b82f6;
  box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
  transform: translateY(-2px);
}

.input-wrapper input:hover {
  border-color: #cbd5e0;
  transform: translateY(-1px);
}

.input-icon {
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  color: #a0aec0;
  font-size: 14px;
}

.calculate-btn {
  width: 100%;
  padding: 14px;
  background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
  border: none;
  border-radius: 12px;
  color: white;
  font-size: 16px;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  box-shadow: 0 8px 20px rgba(59, 130, 246, 0.25);
  position: relative;
  overflow: hidden;
}

.calculate-btn::before {
  content: '';
  position: absolute;
  top: 0;
  left: -100%;
  width: 100%;
  height: 100%;
  background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.2), transparent);
  transition: left 0.5s;
}

.calculate-btn:hover::before {
  left: 100%;
}

.calculate-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 15px 35px rgba(59, 130, 246, 0.35);
}

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

.results-section {
  background: linear-gradient(135deg, #f8fafc 0%, #f1f5f9 100%);
  padding: 25px;
  border-radius: 16px;
  border: 1px solid #e2e8f0;
  position: relative;
  overflow: hidden;
  height: fit-content;
}

.results-section::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 4px;
  background: linear-gradient(90deg, #3b82f6, #1d4ed8, #1e40af);
}

.results-section h2 {
  color: #1e293b;
  margin-bottom: 20px;
  font-size: 1.3rem;
  font-weight: 700;
  text-align: center;
}

.results-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 15px;
}

.result-card {
  background: white;
  padding: 20px;
  border-radius: 12px;
  text-align: center;
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.06);
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
  border: 1px solid #f1f5f9;
}

.result-card:hover {
  transform: translateY(-5px);
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.result-card h3 {
  color: #64748b;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.result-card .value {
  font-size: 1.6rem;
  font-weight: 700;
  color: #1e40af;
  margin-bottom: 5px;
}

.result-card.savings .value {
  color: #10b981;
}

.result-card.roi .value {
  color: #f59e0b;
}

.pulse {
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0.7);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(59, 130, 246, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(59, 130, 246, 0);
  }
}

@media (max-width: 768px) {
  .header h1 {
    font-size: 2rem;
  }
  
  .container {
    padding: 25px;
    margin: 10px;
  }

  .form-grid {
    grid-template-columns: 1fr;
    gap: 20px;
  }

  .results-grid {
    grid-template-columns: 1fr;
  }
}