:root {
  color-scheme: dark;
  --bg: #0b141a;
  --panel: #111b21;
  --panel-soft: #182229;
  --border: #26343c;
  --text: #f7f9fa;
  --muted: #9eacb5;
  --primary: #25d366;
  --primary-dark: #1fb85a;
  --danger: #ff6b6b;
  --success: #49d17d;
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
  background: var(--bg);
}

body {
  min-height: 100vh;
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background:
    radial-gradient(circle at top, rgba(37, 211, 102, 0.12), transparent 34%),
    linear-gradient(180deg, #0b141a 0%, #071015 100%);
  color: var(--text);
}

button,
input {
  font: inherit;
}

.auth-shell {
  width: min(100%, 460px);
  min-height: 100vh;
  margin: 0 auto;
  padding: 42px 20px 24px;
  display: flex;
  flex-direction: column;
  justify-content: center;
}

.brand {
  text-align: center;
  margin-bottom: 28px;
}

.logo {
  width: 78px;
  height: 78px;
  margin: 0 auto 16px;
  display: grid;
  place-items: center;
  border-radius: 24px;
  background: linear-gradient(145deg, var(--primary), #0f8f65);
  color: #06130c;
  font-size: 38px;
  font-weight: 900;
  box-shadow: 0 18px 45px rgba(37, 211, 102, 0.22);
}

.brand h1 {
  margin: 0;
  font-size: 34px;
  letter-spacing: -1px;
}

.brand p {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 15px;
}

.auth-card {
  padding: 18px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: rgba(17, 27, 33, 0.94);
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.34);
  backdrop-filter: blur(16px);
}

.tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 18px;
  padding: 5px;
  border-radius: 15px;
  background: var(--panel-soft);
}

.tab {
  min-height: 44px;
  border: 0;
  border-radius: 11px;
  background: transparent;
  color: var(--muted);
  font-weight: 700;
  cursor: pointer;
}

.tab.active {
  background: var(--primary);
  color: #06130c;
}

.form {
  display: none;
  gap: 15px;
}

.form.active {
  display: grid;
}

label {
  display: grid;
  gap: 8px;
  color: #dce4e8;
  font-size: 13px;
  font-weight: 700;
}

input {
  width: 100%;
  min-height: 51px;
  padding: 0 15px;
  border: 1px solid var(--border);
  border-radius: 14px;
  outline: none;
  background: #0d171d;
  color: var(--text);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input::placeholder {
  color: #687882;
}

input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(37, 211, 102, 0.11);
}

.primary-button {
  min-height: 52px;
  margin-top: 4px;
  border: 0;
  border-radius: 14px;
  background: var(--primary);
  color: #06130c;
  font-weight: 900;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease;
}

.primary-button:active {
  transform: scale(0.98);
}

.primary-button:hover {
  background: var(--primary-dark);
}

.primary-button:disabled {
  opacity: 0.65;
  cursor: wait;
}

.status {
  display: none;
  margin-bottom: 15px;
  padding: 12px 14px;
  border-radius: 13px;
  font-size: 13px;
  line-height: 1.4;
}

.status.show {
  display: block;
}

.status.error {
  border: 1px solid rgba(255, 107, 107, 0.35);
  background: rgba(255, 107, 107, 0.1);
  color: #ffb4b4;
}

.status.success {
  border: 1px solid rgba(73, 209, 125, 0.35);
  background: rgba(73, 209, 125, 0.1);
  color: #9cf0bb;
}

.footer-text {
  margin: 22px 0 0;
  text-align: center;
  color: #6f808a;
  font-size: 12px;
}

@media (max-width: 380px) {
  .auth-shell {
    padding-inline: 14px;
  }

  .auth-card {
    padding: 14px;
  }

  .brand h1 {
    font-size: 30px;
  }
}