:root {
  --bg-gradient: #1e1b4b;
  --card-bg: rgba(30, 41, 59, 0.7);
  --card-border: rgba(255, 255, 255, 0.08);
  --text-primary: #f8fafc;
  --text-secondary: #94a3b8;
  --accent-color: #6366f1;
  --accent-glow: rgba(99, 102, 241, 0.15);
  --accent-hover: #4f46e5;
  --error-color: #f87171;
  --error-bg: rgba(248, 113, 113, 0.1);
  --input-bg: rgba(15, 23, 42, 0.6);
  --input-border: rgba(255, 255, 255, 0.1);
  --input-focus: #818cf8;
}

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

[hidden] {
  display: none !important;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  background: var(--bg-gradient);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
}

main {
  width: 100%;
  max-width: 420px;
  background: var(--card-bg);
  border: 1px solid var(--card-border);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-radius: 20px;
  padding: 40px 30px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

h1 {
  font-size: 1.8rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 24px;
  background: linear-gradient(to right, #818cf8, #c084fc);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  letter-spacing: -0.025em;
}

form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

input[type="text"],
input[type="password"],
input[type="url"] {
  width: 100%;
  padding: 12px 16px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  color: var(--text-primary);
  font-size: 0.95rem;
  transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
  outline: none;
}

input[type="text"]::placeholder,
input[type="password"]::placeholder,
input[type="url"]::placeholder {
  color: var(--text-secondary);
}

input[type="text"]:focus,
input[type="password"]:focus,
input[type="url"]:focus {
  border-color: var(--input-focus);
  box-shadow: 0 0 0 3px var(--accent-glow);
  background: rgba(15, 23, 42, 0.8);
}

.checkbox-container {
  display: flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
  user-select: none;
  margin-top: 4px;
}

.checkbox-container input[type="checkbox"] {
  appearance: none;
  -webkit-appearance: none;
  width: 18px;
  height: 18px;
  border: 1px solid var(--input-border);
  border-radius: 4px;
  outline: none;
  background: var(--input-bg);
  cursor: pointer;
  display: grid;
  place-content: center;
  transition: all 0.2s ease;
}

.checkbox-container input[type="checkbox"]::before {
  content: "";
  width: 10px;
  height: 10px;
  transform: scale(0);
  transition: 120ms transform ease-in-out;
  box-shadow: inset 1em 1em var(--text-primary);
  background-color: CanvasText;
  clip-path: polygon(14% 44%, 0 65%, 50% 100%, 100% 16%, 80% 0%, 43% 62%);
}

.checkbox-container input[type="checkbox"]:checked {
  background: var(--accent-color);
  border-color: var(--accent-color);
}

.checkbox-container input[type="checkbox"]:checked::before {
  transform: scale(1);
}

.checkbox-container label {
  color: var(--text-secondary);
  font-size: 0.9rem;
  cursor: pointer;
}

button[type="submit"] {
  background: var(--accent-color);
  color: var(--text-primary);
  border: none;
  border-radius: 10px;
  padding: 12px 20px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s ease;
  box-shadow: 0 4px 12px rgba(99, 102, 241, 0.25);
  margin-top: 8px;
}

button[type="submit"]:hover {
  background: var(--accent-hover);
  transform: translateY(-1px);
  box-shadow: 0 6px 16px rgba(99, 102, 241, 0.35);
}

button[type="submit"]:active {
  transform: translateY(0);
}

#error-text {
  background: var(--error-bg);
  border: 1px solid rgba(248, 113, 113, 0.2);
  color: var(--error-color);
  padding: 10px 14px;
  border-radius: 10px;
  font-size: 0.85rem;
  margin-bottom: 16px;
  text-align: center;
}

#app {
  display: flex;
  flex-direction: column;
}

#logout-button {
  align-self: flex-end;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--input-border);
  border-radius: 8px;
  padding: 6px 16px;
  font-size: 0.85rem;
  cursor: pointer;
  transition: all 0.2s ease;
  margin-bottom: 8px;
}

#logout-button:hover {
  color: var(--error-color);
  border-color: rgba(248, 113, 113, 0.3);
  background: rgba(248, 113, 113, 0.08);
}

#result-container {
  margin-top: 24px;
  background: var(--input-bg);
  border: 1px solid var(--input-border);
  border-radius: 10px;
  padding: 16px;
  max-height: 250px;
  overflow-y: auto;
}

#result-text {
  font-family: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  font-size: 0.85rem;
  white-space: pre-wrap;
  word-break: break-all;
  line-height: 1.5;
}

.result-success {
  color: #34d399; /* Emerald 400 */
}

.result-error {
  color: var(--error-color);
}