:root {
  --bg-rgb: 242 242 247;
  --card-rgb: 255 255 255;
  --text-rgb: 0 0 0;
  --text2-rgb: 142 142 147;
  --accent-rgb: 0 122 255;
  --red-rgb: 255 59 48;
  --separator-rgb: 198 198 200;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-rgb: 0 0 0;
    --card-rgb: 28 28 30;
    --text-rgb: 255 255 255;
    --text2-rgb: 142 142 147;
    --accent-rgb: 10 132 255;
    --red-rgb: 255 69 58;
    --separator-rgb: 56 56 58;
  }
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
}

body {
  color-scheme: light dark;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 16px;
  background: rgb(var(--bg-rgb));
  color: rgb(var(--text-rgb));
  font-family: -apple-system, BlinkMacSystemFont, "SF Pro Text", "Segoe UI", Roboto, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

input,
button {
  font: inherit;
}

.auth-card {
  width: min(100%, 420px);
  background: rgb(var(--card-rgb));
  border: 1px solid rgb(var(--separator-rgb) / 0.35);
  border-radius: 24px;
  box-shadow: 0 18px 44px rgb(0 0 0 / 0.16);
  padding: 24px;
}

.auth-title {
  margin: 0 0 6px;
  font-size: 28px;
  font-weight: 700;
  letter-spacing: -0.01em;
}

.auth-subtitle {
  margin: 0 0 18px;
  font-size: 14px;
  color: rgb(var(--text2-rgb));
}

.field {
  display: block;
  margin-bottom: 12px;
}

.field-label {
  display: block;
  margin-bottom: 6px;
  font-size: 13px;
  font-weight: 600;
  color: rgb(var(--text2-rgb));
}

.input {
  width: 100%;
  border-radius: 14px;
  border: 1.5px solid rgb(var(--separator-rgb) / 0.45);
  background: rgb(var(--bg-rgb));
  color: rgb(var(--text-rgb));
  font-size: 17px;
  padding: 12px 14px;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.input:focus {
  border-color: rgb(var(--accent-rgb) / 0.55);
  box-shadow: 0 0 0 3.5px rgb(var(--accent-rgb) / 0.15);
}

.input::placeholder {
  color: rgb(var(--text2-rgb) / 0.7);
}

.error-box,
.info-box {
  margin: 0 0 12px;
  border-radius: 12px;
  padding: 10px 12px;
  font-size: 13px;
}

.error-box {
  background: rgb(var(--red-rgb) / 0.1);
  border: 1px solid rgb(var(--red-rgb) / 0.35);
  color: rgb(var(--red-rgb));
}

.info-box {
  background: rgb(var(--accent-rgb) / 0.08);
  border: 1px solid rgb(var(--accent-rgb) / 0.25);
  color: rgb(var(--accent-rgb));
}

.button {
  width: 100%;
  border: 0;
  border-radius: 14px;
  background: rgb(var(--accent-rgb));
  color: #fff;
  font-size: 16px;
  font-weight: 600;
  padding: 12px 14px;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.08s ease;
}

.button:active {
  transform: scale(0.99);
  opacity: 0.92;
}

.auth-links {
  margin-top: 12px;
  display: flex;
  justify-content: center;
  gap: 12px;
}

.auth-link {
  color: rgb(var(--accent-rgb));
  text-decoration: none;
  font-size: 13px;
}

.auth-link:hover {
  text-decoration: underline;
}

@media (prefers-color-scheme: dark) {
  html,
  body {
    color-scheme: dark;
  }

  .auth-card {
    border-color: rgb(var(--separator-rgb) / 0.75);
    box-shadow: 0 18px 44px rgb(0 0 0 / 0.5);
  }

  .input {
    border-color: rgb(var(--separator-rgb) / 0.85);
    background: rgb(var(--card-rgb));
  }
}