/* Reset & Base */
*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Pretendard", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
  background: linear-gradient(160deg, #1a0f2e 0%, #2d1b4e 40%, #1e1229 100%);
  color: #fff;
  -webkit-font-smoothing: antialiased;
}

/* Page */
.page {
  max-width: 420px;
  margin: 0 auto;
  padding: 2rem 1.5rem 3rem;
  min-height: 100vh;
}

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

.title {
  font-size: 1.75rem;
  font-weight: 700;
  margin: 0 0 0.5rem;
  letter-spacing: -0.02em;
  text-shadow: 0 0 24px rgba(180, 140, 255, 0.3);
}

.subtitle {
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.75);
  margin: 0;
  font-weight: 400;
}

/* Form */
.form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

/* Card (input block) */
.card {
  background: rgba(60, 35, 95, 0.5);
  border: 1px solid rgba(140, 100, 200, 0.25);
  border-radius: 14px;
  padding: 1rem 1.25rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}

.card:focus-within {
  border-color: rgba(180, 140, 255, 0.5);
  box-shadow: 0 0 0 2px rgba(180, 140, 255, 0.15);
}

.label {
  display: block;
  font-size: 0.85rem;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  margin-bottom: 0.6rem;
}

/* Input */
.input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-size: 1rem;
  color: #fff;
  background: rgba(40, 25, 65, 0.6);
  border: 1px solid rgba(140, 100, 200, 0.2);
  border-radius: 10px;
  outline: none;
  transition: border-color 0.2s, background 0.2s;
}

.input::placeholder {
  color: rgba(255, 255, 255, 0.4);
}

.input:hover {
  background: rgba(50, 30, 75, 0.7);
}

.input:focus {
  border-color: rgba(180, 140, 255, 0.6);
  background: rgba(45, 28, 75, 0.8);
}

/* Radio */
.radio-group {
  display: flex;
  gap: 1.5rem;
  margin-top: 0.5rem;
}

.radio-label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
}

.radio {
  width: 20px;
  height: 20px;
  accent-color: #a78bfa;
  cursor: pointer;
}

.radio-text {
  user-select: none;
}

/* Primary Button */
.btn-primary {
  margin-top: 0.5rem;
  padding: 1rem 1.5rem;
  font-size: 1.1rem;
  font-weight: 600;
  color: #fff;
  background: linear-gradient(135deg, #7c3aed 0%, #6d28d9 100%);
  border: none;
  border-radius: 14px;
  cursor: pointer;
  box-shadow: 0 4px 20px rgba(124, 58, 237, 0.4);
  transition: transform 0.15s, box-shadow 0.2s;
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 6px 24px rgba(124, 58, 237, 0.5);
}

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

.btn-primary:focus-visible {
  outline: 2px solid #a78bfa;
  outline-offset: 2px;
}

.btn-primary:disabled {
  opacity: 0.7;
  cursor: not-allowed;
  transform: none;
}

/* Result page */
.result-welcome {
  text-align: center;
  font-size: 1rem;
  color: rgba(255, 255, 255, 0.9);
  margin: 0 0 1.5rem;
}

.result-section {
  margin-top: 0;
  padding-top: 0;
  border-top: none;
}

.result-actions {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  margin-top: 2rem;
}

.btn-secondary {
  padding: 1rem 1.5rem;
  font-size: 1rem;
  font-weight: 600;
  color: #fff;
  background: rgba(60, 35, 95, 0.8);
  border: 1px solid rgba(140, 100, 200, 0.4);
  border-radius: 14px;
  cursor: pointer;
  transition: background 0.2s, border-color 0.2s;
}

.btn-secondary:hover {
  background: rgba(80, 50, 120, 0.9);
  border-color: rgba(140, 100, 200, 0.5);
}

.btn-secondary:focus-visible {
  outline: 2px solid #a78bfa;
  outline-offset: 2px;
}

.result-title {
  font-size: 1.25rem;
  font-weight: 600;
  margin: 0 0 1rem;
  color: rgba(255, 255, 255, 0.95);
}

.result-cards {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.result-card {
  background: rgba(60, 35, 95, 0.5);
  border: 1px solid rgba(140, 100, 200, 0.25);
  border-radius: 14px;
  padding: 1.25rem;
}

.result-label {
  font-size: 0.95rem;
  font-weight: 600;
  margin: 0 0 0.5rem;
  color: #c4b5fd;
}

.result-text {
  font-size: 0.95rem;
  line-height: 1.6;
  margin: 0;
  color: rgba(255, 255, 255, 0.9);
  white-space: pre-wrap;
}

.result-error {
  margin: 1rem 0 0;
  padding: 1rem;
  background: rgba(180, 60, 80, 0.2);
  border: 1px solid rgba(220, 100, 120, 0.4);
  border-radius: 10px;
  color: #fca5a5;
  font-size: 0.9rem;
}

/* Mobile tweaks */
@media (max-width: 480px) {
  .page {
    padding: 1.5rem 1.25rem 2.5rem;
  }

  .title {
    font-size: 1.5rem;
  }

  .subtitle {
    font-size: 0.85rem;
  }
}