/* Notion-inspired login UI */
:root {
  --notion-text: #37352f;
  --notion-text-secondary: rgba(55, 53, 47, 0.65);
  --notion-text-tertiary: rgba(55, 53, 47, 0.45);
  --notion-bg: #f7f6f3;
  --notion-card: #ffffff;
  --notion-border: rgba(55, 53, 47, 0.16);
  --notion-border-hover: rgba(55, 53, 47, 0.3);
  --notion-blue: #2383e2;
  --notion-blue-hover: #1a6fc9;
  --notion-red-bg: #fdebec;
  --notion-red-text: #e03e3e;
  --notion-radius: 6px;
  --notion-shadow: rgba(15, 15, 15, 0.05) 0px 0px 0px 1px,
    rgba(15, 15, 15, 0.1) 0px 3px 6px,
    rgba(15, 15, 15, 0.1) 0px 9px 24px;
  --notion-font: "Inter", "Noto Sans TC", ui-sans-serif, -apple-system,
    BlinkMacSystemFont, "Segoe UI", Helvetica, Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

.notion-login-page {
  margin: 0;
  min-height: 100vh;
  font-family: var(--notion-font);
  font-size: 14px;
  line-height: 1.5;
  color: var(--notion-text);
  background: var(--notion-bg);
  -webkit-font-smoothing: antialiased;
}

.notion-login {
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 100vh;
  padding: 48px 20px;
}

.notion-login__card {
  width: 100%;
  max-width: 400px;
  background: var(--notion-card);
  border-radius: 8px;
  box-shadow: var(--notion-shadow);
  padding: 32px 32px 28px;
}

.notion-login__brand {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  margin-bottom: 28px;
}

.notion-login__icon {
  width: 40px;
  height: 40px;
  margin-bottom: 16px;
  border-radius: 8px;
  background: linear-gradient(135deg, #37352f 0%, #6b6b6b 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  color: #fff;
  font-weight: 600;
  font-size: 18px;
  letter-spacing: -0.02em;
  box-shadow: rgba(15, 15, 15, 0.1) 0px 2px 4px;
}

.notion-login__title {
  margin: 0 0 6px;
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--notion-text);
}

.notion-login__subtitle {
  margin: 0;
  font-size: 14px;
  color: var(--notion-text-secondary);
  line-height: 1.45;
}

.notion-login__error {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-bottom: 16px;
  padding: 10px 12px;
  border-radius: var(--notion-radius);
  background: var(--notion-red-bg);
  color: var(--notion-red-text);
  font-size: 13px;
  line-height: 1.4;
}

.notion-login__error::before {
  content: "!";
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--notion-red-text);
  color: #fff;
  font-size: 12px;
  font-weight: 700;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 1px;
}

.notion-field {
  margin-bottom: 14px;
}

.notion-field label {
  display: block;
  margin-bottom: 6px;
  font-size: 12px;
  font-weight: 500;
  color: var(--notion-text-secondary);
}

.notion-field input {
  width: 100%;
  height: 36px;
  padding: 6px 10px;
  font: inherit;
  font-size: 14px;
  color: var(--notion-text);
  background: #fff;
  border: 1px solid var(--notion-border);
  border-radius: var(--notion-radius);
  outline: none;
  transition: border-color 0.15s ease, box-shadow 0.15s ease;
}

.notion-field input::placeholder {
  color: var(--notion-text-tertiary);
}

.notion-field input:hover {
  border-color: var(--notion-border-hover);
}

.notion-field input:focus {
  border-color: var(--notion-blue);
  box-shadow: 0 0 0 2px rgba(35, 131, 226, 0.25);
}

.notion-login__submit {
  width: 100%;
  height: 36px;
  margin-top: 8px;
  padding: 0 12px;
  font: inherit;
  font-size: 14px;
  font-weight: 500;
  color: #fff;
  background: var(--notion-blue);
  border: none;
  border-radius: var(--notion-radius);
  cursor: pointer;
  transition: background 0.15s ease;
}

.notion-login__submit:hover {
  background: var(--notion-blue-hover);
}

.notion-login__submit:active {
  transform: scale(0.99);
}

.notion-login__footer {
  margin-top: 20px;
  padding-top: 16px;
  border-top: 1px solid rgba(55, 53, 47, 0.09);
  text-align: center;
  font-size: 12px;
  color: var(--notion-text-tertiary);
  line-height: 1.5;
}

.notion-login__footer strong {
  color: var(--notion-text-secondary);
  font-weight: 500;
}

.notion-login__page-footer {
  margin-top: 32px;
  font-size: 12px;
  color: var(--notion-text-tertiary);
}

@media (max-width: 440px) {
  .notion-login__card {
    padding: 28px 24px 24px;
    box-shadow: rgba(15, 15, 15, 0.05) 0px 0px 0px 1px;
  }
}