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

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

body {
  font-family: "Inter", sans-serif;
  min-height: 100vh;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
  position: relative;
}

/* Date Pill */
.date-pill {
  position: fixed;
  top: 30px;
  right: 30px;
  background: white;
  backdrop-filter: blur(10px);
  padding: 12px 20px;
  border-radius: 50px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 8px 25px rgba(0, 0, 0, 0.25);
  z-index: 100;
}

.date-pill .calendar-icon {
  width: 24px;
  height: 24px;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  border-radius: 6px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-size: 14px;
  font-weight: 600;
}

.date-pill input[type="date"] {
  border: none;
  background: transparent;
  font-family: "Inter", sans-serif;
  font-size: 15px;
  font-weight: 500;
  color: #2d3748;
  cursor: pointer;
  outline: none;
  padding: 0;
}

.date-pill input[type="date"]::-webkit-calendar-picker-indicator {
  cursor: pointer;
  opacity: 0.6;
}

.container {
  background: white;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 480px;
  padding: 40px 35px;
  transition: all 0.4s ease;
}

.container.hidden {
  opacity: 0;
  transform: scale(0.95);
  pointer-events: none;
  position: absolute;
}

h1 {
  text-align: center;
  color: #2d3748;
  font-size: 28px;
  font-weight: 600;
  margin-bottom: 30px;
  letter-spacing: -0.5px;
}

.form-group {
  margin-bottom: 20px;
}

label {
  display: block;
  color: #4a5568;
  font-size: 14px;
  font-weight: 500;
  margin-bottom: 8px;
}

input,
textarea,
select {
  width: 100%;
  padding: 12px 16px;
  border: 2px solid #e2e8f0;
  border-radius: 10px;
  font-size: 15px;
  font-family: "Inter", sans-serif;
  color: #2d3748;
  transition: all 0.3s ease;
  background: #f7fafc;
}

input:focus,
textarea:focus,
select:focus {
  outline: none;
  border-color: #667eea;
  background: white;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

textarea {
  resize: vertical;
  min-height: 80px;
}

select {
  cursor: pointer;
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%234a5568' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 16px center;
  padding-right: 40px;
}

.btn {
  width: 100%;
  padding: 14px;
  border: none;
  border-radius: 10px;
  font-size: 16px;
  font-weight: 600;
  font-family: "Inter", sans-serif;
  cursor: pointer;
  transition: all 0.3s ease;
  margin-top: 10px;
}

.btn-primary {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.4);
}

.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.5);
}

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

.result-card {
  background: white;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  width: 100%;
  max-width: 600px;
  padding: 30px;
  text-align: center;
}

.result-card img {
  max-width: 100%;
  border-radius: 12px;
  margin-bottom: 20px;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.button-group {
  display: flex;
  gap: 12px;
  margin-top: 20px;
}

.btn-secondary {
  flex: 1;
  background: #f7fafc;
  color: #4a5568;
  border: 2px solid #e2e8f0;
}

.btn-secondary:hover {
  background: #edf2f7;
  border-color: #cbd5e0;
}

.btn-download {
  flex: 1;
  background: linear-gradient(135deg, #48bb78 0%, #38a169 100%);
  color: white;
  box-shadow: 0 4px 15px rgba(72, 187, 120, 0.4);
}

.btn-download:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(72, 187, 120, 0.5);
}

.loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  display: none;
  justify-content: center;
  align-items: center;
  z-index: 9999;
}

.spinner {
  width: 50px;
  height: 50px;
  border: 4px solid rgba(255, 255, 255, 0.3);
  border-top-color: white;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.footer {
  position: fixed;
  bottom: 15px;
  left: 50%;
  transform: translateX(-50%);
  color: rgba(255, 255, 255, 0.8);
  font-size: 13px;
  font-weight: 300;
}

/* Responsive */
@media (max-width: 640px) {
  .container,
  .result-card {
    padding: 30px 25px;
  }

  h1 {
    font-size: 24px;
  }

  .date-pill {
    top: 15px;
    right: 15px;
    padding: 10px 16px;
  }
}