/* Modern CSS Variables System */
:root {
  --font-main: 'Outfit', sans-serif;
  
  /* HSL Color System */
  --bg-app: hsl(215, 15%, 85%); /* Soft lead gray */
  --bg-card: hsl(215, 12%, 90%); /* Relaxing gray card background */
  --text-main: hsl(215, 28%, 15%);
  --text-muted: hsl(215, 12%, 35%);
  
  --primary: hsl(190, 90%, 35%);
  --primary-hover: hsl(190, 90%, 28%);
  --primary-light: hsla(190, 90%, 35%, 0.08);
  
  --success: hsl(142, 72%, 29%);
  --success-bg: hsla(142, 72%, 29%, 0.1);
  --danger: hsl(0, 84%, 44%);
  --danger-bg: hsla(0, 84%, 44%, 0.08);
  
  --border: hsl(215, 12%, 80%);
  --border-focus: hsl(190, 90%, 35%);
  
  --radius-lg: 16px;
  --radius-md: 10px;
  --radius-sm: 6px;
  
  --shadow-sm: 0 1px 3px rgba(0,0,0,0.05);
  --shadow-md: 0 10px 25px -5px rgba(0,0,0,0.05), 0 8px 10px -6px rgba(0,0,0,0.05);
}

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

body {
  font-family: var(--font-main);
  background-color: var(--bg-app);
  color: var(--text-main);
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 2rem 1rem;
}

/* Form Container Card */
.form-container {
  background-color: var(--bg-card);
  width: 100%;
  max-width: 680px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-md);
  padding: 2.5rem;
  border: 1px solid var(--border);
}

/* Header */
.form-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.logo-circle {
  width: 52px;
  height: 52px;
  background: linear-gradient(135deg, hsl(190, 90%, 40%), hsl(190, 90%, 25%));
  color: white;
  border-radius: 50%;
  display: flex;
  justify-content: center;
  align-items: center;
  font-size: 1.25rem;
  font-weight: 800;
  margin: 0 auto 1rem auto;
  box-shadow: 0 4px 10px rgba(8, 145, 178, 0.3);
}

.form-header h1 {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  letter-spacing: -0.02em;
}

.form-header .subtitle {
  font-size: 0.95rem;
  color: var(--text-muted);
  line-height: 1.4;
}

/* Layout Rows */
.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

@media (max-width: 580px) {
  .form-row {
    grid-template-columns: 1fr;
    gap: 0;
  }
}

/* Form Elements */
.form-group {
  margin-bottom: 1.5rem;
  display: flex;
  flex-direction: column;
}

label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-main);
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
}

.required {
  color: var(--danger);
  margin-left: 3px;
}

input[type="text"],
input[type="tel"],
input[type="date"],
select,
textarea {
  font-family: var(--font-main);
  font-size: 0.95rem;
  padding: 0.75rem 1rem;
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  background-color: hsl(0, 0%, 100%);
  color: var(--text-main);
  outline: none;
  transition: all 0.2s ease;
  width: 100%;
}

input:hover,
select:hover,
textarea:hover {
  border-color: hsl(215, 16%, 70%);
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px var(--primary-light);
}

textarea {
  resize: vertical;
}

.helper-text {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 0.4rem;
}

/* Error Messages */
.error-msg {
  color: var(--danger);
  font-size: 0.8rem;
  font-weight: 500;
  margin-top: 0.4rem;
  display: none;
  animation: fadeIn 0.2s ease forwards;
}

.form-group.has-error input,
.form-group.has-error select,
.form-group.has-error textarea {
  border-color: var(--danger);
  background-color: var(--danger-bg);
}

.form-group.has-error .error-msg {
  display: block;
}

/* Segmented Control Styling */
.segmented-control {
  display: flex;
  background-color: hsl(220, 20%, 94%);
  padding: 4px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  width: 100%;
}

.segment-option {
  flex: 1;
  position: relative;
  cursor: pointer;
  margin-bottom: 0; /* Override label margin */
}

.segment-option input[type="radio"] {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.segment-option span {
  display: block;
  text-align: center;
  padding: 0.65rem 0.5rem;
  border-radius: calc(var(--radius-md) - 2px);
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-muted);
  transition: all 0.2s ease;
  user-select: none;
}

.segment-option input[type="radio"]:checked + span {
  background-color: var(--bg-card);
  color: var(--text-main);
  box-shadow: var(--shadow-sm);
}

/* Submit Button */
.submit-btn {
  font-family: var(--font-main);
  font-size: 1rem;
  font-weight: 700;
  background: linear-gradient(135deg, hsl(190, 90%, 38%), hsl(190, 90%, 25%));
  color: white;
  border: none;
  border-radius: var(--radius-md);
  padding: 1rem;
  cursor: pointer;
  transition: all 0.2s ease;
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  margin-top: 1rem;
  box-shadow: 0 4px 12px rgba(8, 145, 178, 0.2);
}

.submit-btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(8, 145, 178, 0.35);
}

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

.submit-btn:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

/* Loader */
.loader {
  width: 20px;
  height: 20px;
  border: 3px solid rgba(255,255,255,0.3);
  border-radius: 50%;
  border-top-color: white;
  animation: spin 0.8s linear infinite;
  margin-left: 10px;
}

/* Animated Success Toast */
.toast {
  position: fixed;
  bottom: 2rem;
  right: 2rem;
  display: flex;
  align-items: center;
  background-color: var(--bg-card);
  border-radius: var(--radius-md);
  padding: 1rem 1.5rem;
  box-shadow: 0 10px 30px rgba(0,0,0,0.1);
  border-left: 4px solid var(--success);
  z-index: 1000;
  max-width: 420px;
  animation: slideIn 0.3s cubic-bezier(0.16, 1, 0.3, 1) forwards;
  transition: all 0.3s ease;
}

.toast.hidden {
  display: none;
}

.toast.error {
  border-left-color: var(--danger);
}

.toast-icon {
  font-size: 1.5rem;
  margin-right: 1rem;
}

.toast-content {
  display: flex;
  flex-direction: column;
}

.toast-title {
  font-size: 0.95rem;
  font-weight: 700;
  margin-bottom: 0.15rem;
}

.toast-desc {
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

@keyframes fadeIn {
  from { opacity: 0; transform: translateY(-4px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes slideIn {
  from { transform: translateX(100%) translateY(20px); opacity: 0; }
  to { transform: translateX(0) translateY(0); opacity: 1; }
}