/* 统一身份认证 - 使用设计令牌 */
@import url('variables.css');

* { box-sizing: border-box; }

.auth-body {
  margin: 0;
  font-family: var(--font-sans);
  background: linear-gradient(160deg, #f0fdfa 0%, #e0f2fe 50%, #f8fafb 100%);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

/* ========== 顶部横幅 ========== */
.auth-header {
  background: linear-gradient(135deg, var(--color-primary) 0%, #0f766e 100%);
  color: #fff;
  padding: 16px 32px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
  box-shadow: var(--shadow-md);
}

.auth-header-logo {
  display: flex;
  align-items: center;
  gap: 14px;
}

.auth-header-logo-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-lg);
  background: rgba(255, 255, 255, 0.22);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.auth-header-title {
  font-size: var(--text-xl);
  font-weight: 700;
  letter-spacing: 0.02em;
}

.auth-header-subtitle {
  font-size: var(--text-xs);
  opacity: 0.9;
  margin-top: 2px;
  letter-spacing: 0.04em;
}

.auth-header-system {
  font-size: var(--text-md);
  font-weight: 600;
}

/* ========== 主内容区 ========== */
.auth-main {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px 24px;
  gap: 56px;
}

.auth-form-wrap {
  flex-shrink: 0;
  width: 100%;
  max-width: 420px;
}

.auth-card {
  background: var(--color-bg-elevated);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-lg);
  padding: 36px 40px;
  border: 1px solid var(--color-border);
  animation: authCardIn 0.4s var(--transition-smooth) both;
}

@keyframes authCardIn {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.auth-card h1 {
  margin: 0 0 8px;
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
}

.auth-card .auth-hint {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: 24px;
}

.auth-card .auth-hint a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.auth-card .auth-hint a:hover {
  color: var(--color-primary-hover);
  text-decoration: underline;
}

.auth-page .form-group {
  margin-bottom: 20px;
}

.auth-page label {
  display: block;
  margin-bottom: 8px;
  font-size: var(--text-base);
  color: var(--color-text);
  font-weight: 500;
}

.auth-page input {
  width: 100%;
  padding: 12px 16px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-family: inherit;
  color: var(--color-text);
  background: #fff;
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.auth-page input::placeholder {
  color: var(--color-text-muted);
}

.auth-page input:hover {
  border-color: var(--color-border-strong);
}

.auth-page input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: var(--shadow-focus);
}

.auth-actions {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
}

.auth-actions .btn-primary {
  flex: 1;
  padding: 14px 24px;
  background: var(--color-primary);
  color: #fff;
  border: none;
  border-radius: var(--radius-md);
  font-size: var(--text-base);
  font-weight: 600;
  cursor: pointer;
  font-family: inherit;
  transition: background var(--transition-base), transform 0.1s ease;
}

.auth-actions .btn-primary:hover {
  background: var(--color-primary-hover);
}

.auth-actions .btn-primary:active {
  transform: scale(0.98);
}

.auth-actions .btn-link {
  font-size: var(--text-base);
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

.auth-actions .btn-link:hover {
  color: var(--color-primary);
}

.auth-page .error {
  color: var(--color-error);
  font-size: var(--text-sm);
  margin-top: 12px;
  padding: 8px 12px;
  background: var(--color-error-bg);
  border-radius: var(--radius-sm);
}

.auth-page .link {
  text-align: center;
  margin-top: 24px;
  font-size: var(--text-base);
  color: var(--color-text-secondary);
}

.auth-page .link a {
  color: var(--color-primary);
  text-decoration: none;
  font-weight: 500;
  transition: color var(--transition-fast);
}

.auth-page .link a:hover {
  text-decoration: underline;
  color: var(--color-primary-hover);
}

/* ========== 右侧装饰 ========== */
.auth-decoration {
  flex: 1;
  max-width: 480px;
  min-height: 360px;
  position: relative;
  display: none;
}

@media (min-width: 900px) {
  .auth-decoration {
    display: block;
    animation: authDecoIn 0.6s var(--transition-smooth) 0.15s both;
  }
}

@keyframes authDecoIn {
  from {
    opacity: 0;
    transform: translateX(16px);
  }
  to {
    opacity: 1;
    transform: translateX(0);
  }
}

.auth-decoration svg {
  width: 100%;
  height: 100%;
  min-height: 320px;
  filter: drop-shadow(0 8px 24px rgba(13, 148, 136, 0.15));
}

/* 装饰内使用品牌色 */
.auth-decoration circle[fill="#54B4A9"],
.auth-decoration path[stroke="#54B4A9"],
.auth-decoration rect[stroke="#54B4A9"] {
  fill: var(--color-primary);
  stroke: var(--color-primary);
}

.auth-decoration [fill="#FFB16E"] {
  fill: var(--color-accent);
}

/* ========== 页脚 ========== */
.auth-footer {
  background: var(--color-surface);
  padding: 14px 24px;
  text-align: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  flex-shrink: 0;
  border-top: 1px solid var(--color-border);
}

.auth-footer a {
  color: var(--color-primary);
  text-decoration: none;
}

.auth-footer a:hover {
  text-decoration: underline;
}