/* NekoTube -- sign-in screen (the only plaintext page) */

:root {
  color-scheme: dark;
  --nk-bg: #0f0f0f;
  --nk-surface: #191919;
  --nk-surface-2: #202020;
  --nk-text: #f1f1f1;
  --nk-text-2: #aaaaaa;
  --nk-text-3: #757575;
  --nk-line: rgba(255, 255, 255, 0.13);
  --nk-accent: #ff4e45;
  --nk-danger: #e06a6a;
  --nk-focus: #3987e5;
  --nk-font: system-ui, -apple-system, "Segoe UI", Roboto, "PingFang SC",
    "Microsoft YaHei", sans-serif;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(1100px 520px at 50% -12%, rgba(255, 78, 69, 0.16), transparent 70%),
    radial-gradient(700px 400px at 12% 108%, rgba(57, 135, 229, 0.12), transparent 70%),
    var(--nk-bg);
  color: var(--nk-text);
  font-family: var(--nk-font);
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
}

.login-wrap { width: 100%; max-width: 400px; }

.login-card {
  padding: 30px 28px 26px;
  border: 1px solid var(--nk-line);
  border-radius: 20px;
  background: color-mix(in srgb, var(--nk-surface) 88%, transparent);
  backdrop-filter: blur(14px) saturate(1.2);
  box-shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
  animation: card-in 0.42s cubic-bezier(0.2, 0.7, 0.2, 1) both;
}
@keyframes card-in {
  from { opacity: 0; transform: translateY(14px) scale(0.98); }
  to { opacity: 1; transform: none; }
}

.login-brand {
  display: flex;
  align-items: center;
  gap: 9px;
  margin-bottom: 6px;
}
.login-logo { display: flex; color: var(--nk-accent); }
.login-name { font-size: 23px; font-weight: 600; letter-spacing: -0.5px; }
.login-hint { margin: 0 0 22px; color: var(--nk-text-2); font-size: 13px; }

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

.field { display: flex; flex-direction: column; gap: 7px; }
.field-label { font-size: 12.5px; color: var(--nk-text-2); font-weight: 500; }
.field-box {
  display: flex;
  align-items: center;
  gap: 4px;
  padding: 0 6px 0 14px;
  border: 1px solid var(--nk-line);
  border-radius: 12px;
  background: var(--nk-surface-2);
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.field-box:focus-within {
  border-color: var(--nk-focus);
  box-shadow: 0 0 0 3px rgba(57, 135, 229, 0.18);
}
.field-box input {
  flex: 1;
  min-width: 0;
  height: 44px;
  border: 0;
  background: none;
  outline: none;
  color: var(--nk-text);
  font: inherit;
  letter-spacing: 0.4px;
}
.field-btn {
  display: grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border: 0;
  border-radius: 50%;
  background: none;
  color: var(--nk-text-3);
  cursor: pointer;
  transition: background 0.15s ease, color 0.15s ease;
}
.field-btn:hover { background: rgba(255, 255, 255, 0.09); color: var(--nk-text); }
.ic { width: 17px; height: 17px; fill: currentColor; display: block; }

.cap-slot { min-height: 58px; display: flex; align-items: center; }
cap-widget {
  width: 100%;
  --cap-background: var(--nk-surface-2);
  --cap-border-color: var(--nk-line);
  --cap-border-radius: 12px;
  --cap-color: var(--nk-text);
  --cap-checkbox-background: #2a2a2a;
  --cap-checkbox-border: 1px solid rgba(255, 255, 255, 0.2);
  --cap-spinner-color: var(--nk-accent);
  --cap-spinner-background-color: rgba(255, 255, 255, 0.15);
  --cap-widget-width: 100%;
  --cap-widget-height: 48px;
  --cap-font: var(--nk-font);
}
.cap-off {
  gap: 8px;
  padding: 10px 12px;
  border: 1px dashed var(--nk-line);
  border-radius: 12px;
  color: var(--nk-text-3);
  font-size: 12.5px;
}

.login-submit {
  position: relative;
  height: 46px;
  border: 0;
  border-radius: 12px;
  background: var(--nk-accent);
  color: #fff;
  font-size: 15px;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.14s ease, opacity 0.14s ease, filter 0.14s ease;
}
.login-submit:hover:not(:disabled) { filter: brightness(1.08); }
.login-submit:active:not(:disabled) { transform: scale(0.985); }
.login-submit:disabled { opacity: 0.45; cursor: not-allowed; }
.login-spinner {
  display: none;
  position: absolute;
  right: 14px;
  top: 50%;
  width: 18px;
  height: 18px;
  margin-top: -9px;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.35);
  border-top-color: #fff;
  animation: spin 0.8s linear infinite;
}
.login-submit.is-busy .login-spinner { display: block; }
@keyframes spin { to { transform: rotate(360deg); } }

.login-error {
  margin: 0;
  padding: 10px 12px;
  border-radius: 10px;
  background: rgba(224, 106, 106, 0.14);
  color: var(--nk-danger);
  font-size: 13px;
  animation: shake 0.3s ease;
}
@keyframes shake {
  0%, 100% { transform: translateX(0); }
  25% { transform: translateX(-5px); }
  75% { transform: translateX(5px); }
}

.login-foot {
  margin: 18px 0 0;
  text-align: center;
  color: var(--nk-text-3);
  font-size: 11.5px;
}

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    transition-duration: 0.001ms !important;
  }
}