/* ============ 扫码登录页 · Blast Furnace Steelpunk ============ */

.login-section {
  padding: 24px 0 8px;
}

/* 登录卡 · 铆钉钢板 */
.login-card {
  max-width: 400px;
  margin: 0 auto;
  padding: 28px 28px 24px;
  background:
    radial-gradient(circle at 12px 12px, var(--rivet-hi) 0 1.6px, #8f8878 2.2px 3.4px, var(--rivet-lo) 4px 5px, transparent 5.6px),
    radial-gradient(circle at calc(100% - 12px) 12px, var(--rivet-hi) 0 1.6px, #8f8878 2.2px 3.4px, var(--rivet-lo) 4px 5px, transparent 5.6px),
    radial-gradient(circle at 12px calc(100% - 12px), var(--rivet-hi) 0 1.6px, #8f8878 2.2px 3.4px, var(--rivet-lo) 4px 5px, transparent 5.6px),
    radial-gradient(circle at calc(100% - 12px) calc(100% - 12px), var(--rivet-hi) 0 1.6px, #8f8878 2.2px 3.4px, var(--rivet-lo) 4px 5px, transparent 5.6px),
    linear-gradient(180deg, var(--surface) 0%, var(--surface-2) 100%);
  background-repeat: no-repeat;
  border: 1px solid var(--border-strong);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.6),
    inset 0 -2px 8px rgba(31, 25, 19, 0.1),
    0 12px 32px rgba(31, 25, 19, 0.25);
  display: flex;
  flex-direction: column;
  align-items: center;
}

.login-eyebrow {
  display: flex;
  align-items: center;
  gap: 8px;
  width: 100%;
  padding-bottom: 14px;
  margin-bottom: 20px;
  border-bottom: 1px solid var(--border);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--text-3);
  text-transform: uppercase;
}

.login-dot {
  margin-left: auto;
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 6px var(--accent-glow), 0 0 0 2px rgba(var(--accent-rgb), 0.18);
  animation: pulse 1.2s ease-in-out infinite;
}

/* ---------- 二维码舞台（凹槽 + 白底保可读性） ---------- */

.qr-stage {
  position: relative;
  width: 240px;
  height: 240px;
  background: #fff;
  border: 1px solid var(--border-strong);
  box-shadow: inset 0 2px 10px rgba(31, 25, 19, 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.qr-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
  display: block;
}

.qr-loading,
.qr-mask {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
}

.qr-loading {
  flex-direction: column;
  gap: 10px;
  background: var(--surface);
  color: var(--text-3);
  font-family: var(--font-mono);
  font-size: 0.8rem;
}

.qr-mask {
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  backdrop-filter: blur(2px);
}

.qr-mask-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  padding: 16px;
  text-align: center;
}

.qr-mask-title {
  margin: 4px 0 0;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
}

.qr-mask-hint {
  margin: 0 0 10px;
  font-size: 0.76rem;
  font-family: var(--font-mono);
  color: var(--text-3);
}

/* 成功 / 取消 / 异常态遮罩 */
.login-card[data-state="confirmed"] .qr-mask {
  background: color-mix(in srgb, var(--ok) 12%, var(--surface));
}
.login-card[data-state="cancelled"] .qr-mask,
.login-card[data-state="error"] .qr-mask {
  background: color-mix(in srgb, var(--surface) 92%, transparent);
}

/* ---------- 提示文案 ---------- */

.login-hint {
  margin: 12px 0 0;
  font-size: 0.72rem;
  font-family: var(--font-mono);
  color: var(--text-3);
  text-align: center;
  letter-spacing: 0.02em;
}

/* ---------- 登录后跳转条 ---------- */

.login-next {
  margin-top: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  box-shadow: inset 0 1px 3px rgba(31, 25, 19, 0.12);
  font-family: var(--font-mono);
  font-size: 0.76rem;
}

.login-next-label {
  color: var(--text-4);
  letter-spacing: 0.05em;
}

.login-next-path {
  flex: 1;
  min-width: 0;
  color: var(--text-2);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.link-btn {
  appearance: none;
  background: transparent;
  border: none;
  cursor: pointer;
  color: var(--text-4);
  font-family: var(--font-mono);
  font-size: 1rem;
  line-height: 1;
  padding: 2px 6px;
  border-radius: 3px;
  transition: background 120ms ease, color 120ms ease;
}
.link-btn:hover {
  background: var(--accent-tint);
  color: var(--accent);
}

@media (max-width: 560px) {
  .login-card {
    padding: 22px 18px 20px;
  }
  .qr-stage {
    width: 208px;
    height: 208px;
  }
}