/* ============================================================
   钉钉登录 Demo - 样式
   ============================================================ */

:root {
  --primary: #1677ff;
  --primary-hover: #4096ff;
  --dingtalk: #0089ff;
  --dingtalk-hover: #0070d9;
  --bg: #f0f2f5;
  --card-bg: #ffffff;
  --text: #333333;
  --text-secondary: #666666;
  --text-muted: #999999;
  --border: #e8e8e8;
  --radius: 12px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.08);
  --transition: 0.25s ease;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "PingFang SC",
    "Hiragino Sans GB", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial,
    sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
}

/* ===== Container ===== */
.container {
  width: 100%;
  max-width: 420px;
  padding: 20px;
}

/* ===== Card ===== */
.panel {
  display: block;
}

.card {
  background: var(--card-bg);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  overflow: hidden;
}

.card-header {
  padding: 32px 32px 0;
  text-align: center;
}

.card-header h1 {
  font-size: 24px;
  font-weight: 600;
  margin-bottom: 8px;
}

.subtitle {
  color: var(--text-secondary);
  font-size: 14px;
}

.card-body {
  padding: 32px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
}

.card-footer {
  padding: 0 32px 20px;
  text-align: center;
}

.version {
  color: var(--text-muted);
  font-size: 12px;
}

/* ===== DingTalk Button ===== */
.btn-dingtalk {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px 28px;
  background: var(--dingtalk);
  color: #fff;
  border: none;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 500;
  cursor: pointer;
  transition: background var(--transition), transform var(--transition);
}

.btn-dingtalk:hover {
  background: var(--dingtalk-hover);
  transform: translateY(-1px);
}

.btn-dingtalk:active {
  transform: translateY(0);
}

.btn-dingtalk .ding-logo {
  flex-shrink: 0;
}

.hint {
  font-size: 13px;
  color: var(--text-muted);
  text-align: center;
  line-height: 1.5;
}

/* ===== User Info ===== */
.avatar {
  width: 80px;
  height: 80px;
  border-radius: 50%;
  overflow: hidden;
  border: 3px solid var(--border);
  flex-shrink: 0;
}

.avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.user-info {
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.info-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 8px 12px;
  background: var(--bg);
  border-radius: 6px;
  font-size: 14px;
}

.info-row .label {
  color: var(--text-secondary);
  font-weight: 500;
}

.info-row .value {
  color: var(--text);
  font-weight: 400;
  text-align: right;
  word-break: break-all;
}

/* ===== Logout Button ===== */
.btn-outline {
  width: 100%;
  padding: 10px 24px;
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--border);
  border-radius: 8px;
  font-size: 14px;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-outline:hover {
  border-color: #ff4d4f;
  color: #ff4d4f;
}

/* ===== Toast / Error ===== */
.toast {
  position: fixed;
  top: 20px;
  left: 50%;
  transform: translateX(-50%);
  padding: 12px 24px;
  border-radius: 8px;
  font-size: 14px;
  z-index: 9999;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
  display: none;
  max-width: 90%;
  text-align: center;
}

.toast.error {
  background: #fff2f0;
  border: 1px solid #ffccc7;
  color: #cf1322;
}

.toast.success {
  background: #f6ffed;
  border: 1px solid #b7eb8f;
  color: #389e0d;
}

.toast.show {
  display: block;
}

/* ===== Loading ===== */
.loading {
  display: inline-block;
  width: 20px;
  height: 20px;
  border: 2px solid rgba(255, 255, 255, 0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.6s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

.btn-dingtalk.loading {
  pointer-events: none;
  opacity: 0.8;
}

/* ===== Responsive ===== */
@media (max-width: 480px) {
  .container { padding: 12px; }
  .card-header { padding: 24px 20px 0; }
  .card-body { padding: 24px 20px; }
  .card-footer { padding: 0 20px 16px; }
}