*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100vh;
  margin: 0;
  background:
    radial-gradient(ellipse 80% 50% at 20% 50%, color-mix(in srgb, var(--accent) 7%, transparent) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 50%, color-mix(in srgb, var(--accent-2) 7%, transparent) 0%, transparent 60%),
    var(--bg);
  color: var(--text);
  font-family: var(--font-base);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    linear-gradient(color-mix(in srgb, var(--text) calc(var(--grid-opacity) * 100), transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in srgb, var(--text) calc(var(--grid-opacity) * 100), transparent) 1px, transparent 1px);
  background-size: 40px 40px;
  pointer-events: none;
}

.login-shell {
  position: relative;
  z-index: 1;
  width: min(100% - 2rem, 420px);
}

.login-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 2.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
}

.brand-dot {
  width: 0.55rem;
  height: 0.55rem;
  background: var(--accent-strong);
  border-radius: 999px;
  box-shadow: 0 0 12px var(--accent-strong);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%, 100% {
    opacity: 1;
    box-shadow: 0 0 12px var(--accent-strong);
  }

  50% {
    opacity: 0.65;
    box-shadow: 0 0 4px var(--accent-strong);
  }
}

.brand-title {
  font-family: var(--font-mono);
  font-size: 1.05rem;
  letter-spacing: -0.03em;
}

.theme-control {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.78rem;
}

.theme-control select {
  height: 2.15rem;
  padding: 0 0.75rem;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 0.6rem;
  outline: none;
}

.login-card {
  position: relative;
  overflow: hidden;
  background: color-mix(in srgb, var(--surface) 96%, transparent);
  border: 1px solid var(--border);
  border-radius: 1.1rem;
  padding: 2.5rem;
  box-shadow: var(--shadow);
}

.login-card::before {
  content: "";
  position: absolute;
  inset: 0 0 auto 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--accent), transparent);
  opacity: 0.55;
}

.login-title {
  margin: 0 0 0.45rem;
  color: var(--text);
  font-size: 1.45rem;
  letter-spacing: -0.04em;
}

.login-subtitle {
  margin: 0 0 2rem;
  color: var(--muted);
  line-height: 1.5;
}

body[data-theme="terminal"] .login-title {
  color: var(--muted);
  font-family: var(--font-mono);
  font-size: 1.1rem;
  font-weight: 400;
  letter-spacing: 0.05em;
  text-transform: uppercase;
}

body[data-theme="terminal"] .login-subtitle {
  display: none;
}

.field {
  margin-bottom: 1.25rem;
}

label {
  display: block;
  margin-bottom: 0.5rem;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

input {
  width: 100%;
  min-height: 3.1rem;
  padding: 0.875rem 1rem;
  color: var(--text);
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: 0.65rem;
  font-family: var(--font-base);
  font-size: 0.95rem;
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px color-mix(in srgb, var(--accent) 12%, transparent);
}

.login-button {
  width: 100%;
  min-height: 3.1rem;
  margin-top: 0.5rem;
  padding: 0.875rem;
  background: var(--accent);
  color: color-mix(in srgb, var(--bg) 90%, #000);
  border: 0;
  border-radius: 0.65rem;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: opacity 0.2s ease, transform 0.1s ease;
}

.login-button:hover {
  opacity: 0.92;
}

.login-button:active {
  transform: scale(0.99);
}

.login-button:disabled {
  opacity: 0.45;
  cursor: not-allowed;
}

.error {
  display: none;
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  color: var(--danger);
  background: color-mix(in srgb, var(--danger) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--danger) 30%, transparent);
  border-radius: 0.65rem;
  font-size: 0.88rem;
}

.error.show {
  display: block;
}

@media (max-width: 560px) {
  body {
    align-items: flex-start;
    overflow: auto;
  }

  .login-shell {
    padding: 1.5rem 0;
  }

  .login-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .theme-control,
  .theme-control select {
    width: 100%;
  }

  .login-card {
    padding: 1.5rem;
  }
}