/* =========================================================
   TOTP 两步验证 · 作用域 .page-totp
   ========================================================= */
.page-totp {
  padding: var(--sp-4);
  display: flex;
  justify-content: center;
  align-items: flex-start;
}

.page-totp .totp-app {
  width: 100%;
  max-width: 500px;
  margin-top: var(--sp-5);
}

/* ---------- 输入区 ---------- */
.page-totp .field label {
  display: block;
  margin-bottom: var(--sp-2);
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-text-2);
}
.page-totp .input-group {
  display: flex;
  align-items: center;
  border-radius: var(--r);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
  transition: border-color .18s, box-shadow .18s;
}
.page-totp .input-group:focus-within {
  border-color: var(--c-accent);
  box-shadow: 0 0 0 3px var(--c-accent-soft);
}
.page-totp .input-group input {
  flex: 1;
  min-width: 0;
  padding: 12px 14px;
  border: 0;
  outline: 0;
  background: transparent;
  color: var(--c-text);
  font-family: var(--font-mono);
  font-size: var(--fs-base);
  letter-spacing: .6px;
}
.page-totp .input-group input::placeholder {
  color: var(--c-text-faint);
  font-family: var(--font-sans);
  letter-spacing: 0;
}
.page-totp .icon-btn {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  margin-right: 4px;
  border: 0;
  border-radius: var(--r-sm);
  background: transparent;
  color: var(--c-text-dim);
  cursor: pointer;
  transition: .15s;
}
.page-totp .icon-btn:hover {
  background: var(--c-surface-3);
  color: var(--c-text);
}

/* ---------- 验证码面板 ---------- */
.page-totp .code-panel {
  margin-top: var(--sp-4);
  padding: var(--sp-5);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-4);
  border-radius: var(--r-lg);
  background: var(--c-surface-2);
  border: 1px solid var(--c-border);
}
.page-totp .code-main { min-width: 0; }
.page-totp .code {
  font-family: var(--font-mono);
  font-size: 36px;
  font-weight: 700;
  line-height: 1.15;
  letter-spacing: .08em;
  font-variant-numeric: tabular-nums;
  color: var(--c-accent);
  white-space: nowrap;
}
.page-totp .code.empty {
  color: var(--c-text-faint);
  font-weight: 500;
  letter-spacing: .2em;
}
.page-totp .code-hint {
  margin-top: 6px;
  font-size: var(--fs-xs);
  color: var(--c-text-dim);
}

/* 倒计时圆环 */
.page-totp .ring-wrap {
  position: relative;
  flex: 0 0 auto;
  width: 68px;
  height: 68px;
}
.page-totp .ring {
  width: 100%;
  height: 100%;
  transform: rotate(-90deg);
}
.page-totp .ring-bg {
  fill: none;
  stroke: var(--c-border-strong);
  stroke-width: 4.5;
}
.page-totp .ring-fg {
  fill: none;
  stroke: var(--c-accent);
  stroke-width: 4.5;
  stroke-linecap: round;
  transition: stroke .25s ease;
}
.page-totp .ring-fg.warn { stroke: var(--c-danger); }
.page-totp .ring-text {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
  font-size: var(--fs-md);
  font-weight: 650;
  font-variant-numeric: tabular-nums;
  color: var(--c-text);
}

/* ---------- 复制按钮 ---------- */
.page-totp .primary-btn {
  width: 100%;
  margin-top: var(--sp-4);
  padding: 12px;
  border: 0;
  border-radius: var(--r);
  background: var(--c-accent);
  color: #fff;
  font-size: var(--fs-md);
  font-weight: 600;
  font-family: inherit;
  cursor: pointer;
  transition: filter .2s, transform .1s;
}
.page-totp .primary-btn:hover:not(:disabled) { background: var(--c-accent-hover); }
.page-totp .primary-btn:active:not(:disabled) { transform: scale(.985); }
.page-totp .primary-btn:disabled { opacity: .4; cursor: not-allowed; }

/* ---------- 高级选项 ---------- */
.page-totp .advanced {
  margin-top: var(--sp-4);
  padding-top: var(--sp-3);
  border-top: 1px solid var(--c-border);
}
.page-totp .advanced summary {
  display: flex;
  align-items: center;
  gap: 6px;
  list-style: none;
  cursor: pointer;
  user-select: none;
  font-size: var(--fs-sm);
  font-weight: 600;
  color: var(--c-text-dim);
  transition: color .15s;
}
.page-totp .advanced summary:hover { color: var(--c-text); }
.page-totp .advanced summary::-webkit-details-marker { display: none; }
.page-totp .advanced summary::before {
  content: "";
  width: 0;
  height: 0;
  border-left: 5px solid currentColor;
  border-top: 4px solid transparent;
  border-bottom: 4px solid transparent;
  transition: transform .2s ease;
}
.page-totp .advanced[open] summary::before { transform: rotate(90deg); }

.page-totp .opt-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: var(--sp-3);
  margin-top: var(--sp-3);
}
.page-totp .opt { display: flex; flex-direction: column; gap: 4px; }
.page-totp .opt span { font-size: var(--fs-xs); color: var(--c-text-dim); }
.page-totp .opt select {
  width: 100%;
  padding: 8px 10px;
  border-radius: var(--r-sm);
  border: 1px solid var(--c-border);
  background: var(--c-surface-2);
  color: var(--c-text);
  font-family: inherit;
  font-size: var(--fs-sm);
  outline: none;
  cursor: pointer;
}
.page-totp .opt select:focus { border-color: var(--c-accent); }

.page-totp .footnote {
  margin: var(--sp-4) 0 0;
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--c-text-faint);
}