:root {
  --primary-color: #ff9900;
  --secondary-color: #0d0d0d;
  --background-color: #000;
  --text-light: #fff;
  --text-muted: #aaa;
  --border-color: #222;
  --focus-color: #ffc266;
  --error-color: #ff4d4d;
  --tagline-color: #ccc;
  --gradient-start: #ffb700;
  --gradient-end: #ff8c00;
  --gradient-hover-start: #ffc233;
  --gradient-hover-end: #ffa533;
}

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

body {
  font-family: 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  background-color: var(--background-color);
  color: var(--text-light);
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
  padding: 40px;
  overflow-y: auto;
  position: relative;
}

.gradient-circle {
  position: absolute;
  border-radius: 50%;
  z-index: -1;
  filter: blur(100px);
  opacity: 0.2;
  pointer-events: none;
}

.gradient-circle-1 {
  width: 250px;
  height: 250px;
  top: 5%;
  left: 10%;
  background: radial-gradient(circle, var(--primary-color) 0%, transparent 70%);
  animation: pulse 4s infinite alternate;
}

.gradient-circle-2 {
  width: 300px;
  height: 300px;
  bottom: 10%;
  right: 5%;
  background: radial-gradient(circle, var(--focus-color) 0%, transparent 70%);
  animation: pulse 5s 1s infinite alternate;
}

.gradient-circle-3 {
  width: 150px;
  height: 150px;
  top: 50%;
  right: 25%;
  background: radial-gradient(circle, var(--gradient-end) 0%, transparent 70%);
  animation: pulse 3s 0.5s infinite alternate;
}

@keyframes pulse {
  from {
    transform: scale(1);
  }

  to {
    transform: scale(1.05);
  }
}

.container {
  width: 100%;
  max-width: 420px;
}

.animatable-item {
  opacity: 0;
  transform: translateY(20px);
  animation: slideInUp 0.6s ease-out forwards;
}

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

.header {
  text-align: center;
  margin-bottom: 30px;
}

.header>.animatable-item:nth-child(1) {
  animation-delay: 0.1s;
}

.header>.animatable-item:nth-child(2) {
  animation-delay: 0.2s;
}

.header>.animatable-item:nth-child(3) {
  animation-delay: 0.3s;
}

.logo {
  width: 120px;
  height: auto;
  margin-bottom: 10px;
  filter: drop-shadow(0 0 8px rgba(255, 153, 0, 0.6));
}

h1 {
  font-size: 2rem;
  font-weight: 700;
  color: var(--text-light);
  letter-spacing: 0.5px;
}

.tagline {
  font-size: 1.1rem;
  color: var(--tagline-color);
}

.form-card {
  background-color: #000;
  padding: 25px;
  border-radius: 12px;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 4px 15px rgba(0, 0, 0, 0.3);
  backdrop-filter: blur(5px);
}

.form-card>.animatable-item:nth-child(1) {
  animation-delay: 0.4s;
}

.form-card>.animatable-item:nth-child(2) {
  animation-delay: 0.5s;
}

.form-card>.animatable-item:nth-child(3) {
  animation-delay: 0.6s;
}

.form-card>.animatable-item:nth-child(4) {
  animation-delay: 0.7s;
}

.form-card>.animatable-item:nth-child(5) {
  animation-delay: 0.8s;
}

.form-card>.animatable-item:nth-child(6) {
  animation-delay: 0.9s;
}

.input-group {
  margin-bottom: 18px;
  position: relative;
}

.input-group label {
  display: block;
  margin-bottom: 5px;
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--text-muted);
  transition: color 0.3s;
}

.input-group.error label {
  color: var(--error-color);
}

.required {
  color: var(--primary-color);
  font-weight: 700;
}

.input-group input {
  width: 100%;
  padding: 12px 15px;
  border: 1px solid var(--border-color);
  border-radius: 6px;
  background-color: var(--background-color);
  color: var(--text-light);
  font-size: 0.95rem;
  transition: border-color 0.3s, box-shadow 0.3s;
  -webkit-touch-callout: none;
  -webkit-user-select: none;
  -khtml-user-select: none;
  -moz-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-text-size-adjust: 100%;
}

.input-group input::placeholder {
  color: var(--text-muted);
}

.input-group input:focus {
  border-color: var(--primary-color);
  outline: none;
  box-shadow: 0 0 0 1px var(--primary-color);
}

.input-group input.input-error {
  border-color: var(--error-color);
  box-shadow: 0 0 0 1px var(--error-color);
}

.input-group input.input-error::placeholder {
  color: var(--error-color);
  opacity: 0.7;
}

.validation-feedback {
  font-size: 0.75rem;
  color: var(--error-color);
  margin-top: 3px;
  display: block;
  height: 15px;
}

.btn-agendar {
  width: 100%;
  padding: 14px;
  background: linear-gradient(90deg, var(--gradient-start), var(--gradient-end));
  color: var(--background-color);
  font-size: 1rem;
  font-weight: 700;
  border: none;
  border-radius: 6px;
  cursor: pointer;
  transition: background 0.3s ease, opacity 0.3s;
  margin-top: 10px;
  position: relative;
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: center;
  text-decoration: none;
}

.btn-agendar:hover {
  background: linear-gradient(90deg, var(--gradient-hover-start), var(--gradient-hover-end));
}

.btn-agendar:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  background: linear-gradient(90deg, #555, #333);
}

.btn-agendar.loading {
  background: linear-gradient(90deg, #303030, #1a1a1a);
  opacity: 1;
  cursor: wait;
}

.btn-text {
  transition: opacity 0.3s;
}

.btn-agendar.loading .btn-text {
  opacity: 0;
}

.loader {
  border: 3px solid rgba(255, 255, 255, 0.4);
  border-top: 3px solid var(--text-light);
  border-radius: 50%;
  width: 20px;
  height: 20px;
  animation: spin 1s linear infinite;
  position: absolute;
  opacity: 0;
  transition: opacity 0.3s;
}

.btn-agendar.loading .loader {
  opacity: 1;
}

@keyframes spin {
  0% {
    transform: rotate(0deg);
  }

  100% {
    transform: rotate(360deg);
  }
}

.seguranca {
  text-align: center;
  margin-top: 20px;
  font-size: 0.75rem;
  color: var(--text-muted);
}

@media (max-width: 480px) {
  body {
    align-items: flex-start;
    padding: 20px;
  }

  .container {
    margin-top: 10px;
  }

  .form-card {
    padding: 20px;
  }
}