/*
 * Schola — 认证页面样式
 * 适用：login / register / verify-email / forgot-password / reset-password
 * 依赖 design-system.css
 */

/* ============================================================
   认证页面布局（两栏：左内容 + 右品牌区）
   ============================================================ */
.auth-page {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
}

@media (max-width: 799px) {
  .auth-page { grid-template-columns: 1fr; }
  .auth-brand { display: none; }
}

/* ── 左侧：表单区 ── */
.auth-main {
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: flex-start;
  padding: clamp(2rem, 6vw, 4rem);
  max-width: 480px;
  width: 100%;
  margin-inline: auto;
}

/* 移动端时居中 */
@media (max-width: 799px) {
  .auth-main {
    max-width: 420px;
    padding-block: 3rem;
  }
}

/* 顶部 Logo */
.auth-logo {
  display: flex;
  align-items: center;
  text-decoration: none;
  margin-bottom: 2.5rem;
}
.auth-logo svg { height: 26px; width: auto; }

/* 标题区 */
.auth-heading {
  font-size: clamp(1.5rem, 1rem + 1.5vw, 2.25rem);
  font-family: var(--font-display);
  color: var(--color-text-primary);
  line-height: 1.2;
  margin-bottom: 0.5rem;
}

.auth-subheading {
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  margin-bottom: 2rem;
  line-height: 1.6;
}

/* 表单 */
.auth-form {
  width: 100%;
}

/* 分隔线文字（"or"） */
.auth-divider {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-block: 1.25rem;
  color: var(--color-text-muted);
  font-size: var(--text-xs);
}
.auth-divider::before,
.auth-divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background-color: var(--color-divider);
}

/* 表单底部切换链接 */
.auth-switch {
  margin-top: 1.5rem;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  text-align: center;
}
.auth-switch a {
  color: var(--color-brand);
  font-weight: 500;
}

/* 错误 / 成功通知栏 */
.auth-alert {
  padding: 0.75rem 1rem;
  border-radius: var(--radius-input);
  font-size: var(--text-sm);
  margin-bottom: 1.25rem;
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
}
.auth-alert--error {
  background-color: #FDF0EF;
  color: var(--color-error);
  border: 1px solid #F5C6C2;
}
.auth-alert--success {
  background-color: var(--color-brand-light);
  color: var(--color-brand);
  border: 1px solid var(--color-brand-mid);
}
[data-theme="dark"] .auth-alert--error {
  background-color: #2C0A08;
  border-color: #5C1F1A;
}
[data-theme="dark"] .auth-alert--success {
  background-color: var(--color-brand-light);
  border-color: var(--color-brand-mid);
}

/* 密码强度条 */
.password-strength {
  margin-top: 0.375rem;
  height: 3px;
  border-radius: 2px;
  background-color: var(--color-divider);
  overflow: hidden;
}
.password-strength__bar {
  height: 100%;
  border-radius: 2px;
  width: 0%;
  transition: width 300ms ease, background-color 300ms ease;
}
.password-strength__bar--weak   { background-color: var(--color-error);   width: 33%; }
.password-strength__bar--fair   { background-color: var(--color-warning);  width: 66%; }
.password-strength__bar--strong { background-color: var(--color-success);  width: 100%; }

.password-strength-label {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

/* 邀请码输入区（register 页） */
.invite-toggle {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--text-sm);
  color: var(--color-text-secondary);
  cursor: pointer;
  margin-bottom: 1rem;
  width: fit-content;
  user-select: none;
}
.invite-toggle input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: var(--color-brand);
  cursor: pointer;
}

/* ── 右侧：品牌区 ── */
.auth-brand {
  background-color: var(--color-text-primary);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: clamp(2rem, 6vw, 5rem);
  position: relative;
  overflow: hidden;
}
[data-theme="dark"] .auth-brand {
  background-color: var(--color-surface);
  border-left: 1px solid var(--color-divider);
}

/* 背景纹理 */
.auth-brand::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    radial-gradient(circle at 30% 70%, rgba(15, 107, 104, 0.15) 0%, transparent 60%),
    radial-gradient(circle at 80% 20%, rgba(139, 175, 144, 0.10) 0%, transparent 50%);
  pointer-events: none;
}

.auth-brand__inner { position: relative; max-width: 420px; }

.auth-brand__quote {
  font-size: clamp(1.25rem, 1rem + 1vw, 1.75rem);
  font-family: var(--font-display);
  color: var(--color-bg);
  line-height: 1.4;
  margin-bottom: 1.5rem;
  font-style: italic;
}
[data-theme="dark"] .auth-brand__quote { color: var(--color-text-primary); }

.auth-brand__stats {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  margin-bottom: 2rem;
}

.auth-brand__stat {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: var(--text-sm);
  color: rgba(248, 247, 242, 0.7);
}
[data-theme="dark"] .auth-brand__stat { color: var(--color-text-secondary); }

.auth-brand__stat-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background-color: var(--color-brand);
  flex-shrink: 0;
}

.auth-brand__note {
  font-size: var(--text-xs);
  color: rgba(248, 247, 242, 0.4);
  line-height: 1.6;
}
[data-theme="dark"] .auth-brand__note { color: var(--color-text-muted); }

/* ── 页이 없는 auth 导航（无完整 nav）── */
.auth-nav {
  position: absolute;
  top: 1.25rem;
  right: 1.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

/* 密码显示切换按钮 */
.input-password-wrap {
  position: relative;
}
.input-password-wrap .form-input {
  padding-right: 2.75rem;
}
.password-toggle-btn {
  position: absolute;
  right: 0.75rem;
  top: 50%;
  transform: translateY(-50%);
  background: none;
  border: none;
  cursor: pointer;
  color: var(--color-text-muted);
  padding: 0.25rem;
  display: flex;
  align-items: center;
  transition: color var(--transition-btn);
}
.password-toggle-btn:hover { color: var(--color-brand); }

/* 全宽按钮 */
.btn--full { width: 100%; }

/* 提交中状态 */
.btn--loading {
  opacity: 0.7;
  pointer-events: none;
  cursor: not-allowed;
}

/* Terms 同意文字 */
.auth-terms {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-top: 0.875rem;
  text-align: center;
}
.auth-terms a { color: var(--color-brand); }

/* 验证邮箱成功状态图标 */
.verify-icon {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}
.verify-icon--success { background-color: var(--color-brand-light); color: var(--color-brand); }
.verify-icon--error   { background-color: #FDF0EF; color: var(--color-error); }