/* ==============================
   联系博主（触发按钮 + 弹窗）
   弹窗结构由 contact.js 注入；本文件只负责样式，全站共用。
   依赖页面已定义的设计令牌：
   --paper-light / --ink / --line / --hairline / --accent / --accent-soft
   / --muted / --serif / --ease / --ease-out
   ============================== */

/* 页脚左栏（首页与子页面共用） */
.footer-left {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: 13px;

  min-width: 0;
}

/* ---------------- 触发按钮 ---------------- */

.contact-open {
  display: inline-flex;
  align-items: center;
  gap: 7px;

  padding: 8px 15px;

  border: 1px solid var(--line);
  border-radius: 999px;

  background: transparent;
  color: var(--ink);

  font-family: var(--serif);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.16em;

  cursor: pointer;

  transition:
    border-color 0.34s var(--ease),
    color 0.34s var(--ease),
    background 0.34s var(--ease);
}

.contact-open svg {
  width: 12px;
  height: 12px;
  flex: none;
}

.contact-open:hover,
.contact-open:focus-visible {
  border-color: rgba(181, 72, 47, 0.55);
  background: var(--accent-soft);
  color: var(--accent);
  outline: none;
}

/* ---------------- 弹窗 ---------------- */

.contact-modal {
  position: fixed;
  inset: 0;
  z-index: 90;

  display: grid;
  place-items: center;

  padding: 22px;

  opacity: 0;
  visibility: hidden;

  /* 关闭时：visibility 延迟到淡出结束才切走 */
  transition:
    opacity 0.36s var(--ease-out),
    visibility 0s linear 0.36s;
}

.contact-modal.is-open {
  opacity: 1;
  visibility: visible;

  /* 打开时：visibility 立刻生效，否则面板还是 hidden，聚焦会失败 */
  transition:
    opacity 0.36s var(--ease-out),
    visibility 0s;
}

.contact-backdrop {
  position: absolute;
  inset: 0;

  background: rgba(23, 23, 19, 0.4);

  -webkit-backdrop-filter: blur(7px) saturate(0.92);
  backdrop-filter: blur(7px) saturate(0.92);
}

.contact-panel {
  position: relative;

  width: min(418px, 100%);
  padding: clamp(26px, 4.4vw, 38px);

  border: 1px solid var(--line);
  border-radius: 20px;

  background: var(--paper-light);

  box-shadow:
    0 34px 74px rgba(23, 23, 19, 0.17),
    0 6px 18px rgba(23, 23, 19, 0.06),
    0 1px 0 rgba(255, 255, 255, 0.6) inset;

  transform: translateY(14px) scale(0.986);

  transition: transform 0.44s var(--ease-out);
}

.contact-modal.is-open .contact-panel {
  transform: none;
}

.contact-close {
  position: absolute;
  top: 13px;
  right: 13px;

  display: grid;
  place-items: center;

  width: 30px;
  height: 30px;

  border: 1px solid transparent;
  border-radius: 999px;

  background: transparent;
  color: var(--muted);

  font: 15px/1 var(--serif);

  cursor: pointer;

  transition:
    border-color 0.3s var(--ease),
    color 0.3s var(--ease);
}

.contact-close:hover,
.contact-close:focus-visible {
  border-color: var(--line);
  color: var(--accent);
  outline: none;
}

.contact-email {
  margin: 0;

  color: var(--ink);

  font-size: clamp(19px, 4.8vw, 24px);
  line-height: 1.3;
  letter-spacing: 0.02em;
  word-break: break-all;

  -webkit-user-select: all;
  user-select: all;
}

.contact-hint {
  margin: 12px 0 0;

  color: var(--muted);

  font-size: 11px;
  line-height: 1.7;
  letter-spacing: 0.03em;
}

.contact-actions {
  display: flex;
  align-items: center;
  gap: 13px;

  margin-top: clamp(22px, 3.6vh, 30px);
  padding-top: 18px;

  border-top: 1px solid var(--hairline);
}

.contact-copy {
  min-width: 96px;
  padding: 11px 22px;

  border: 1px solid var(--ink);
  border-radius: 999px;

  background: var(--ink);
  color: var(--paper-light);

  font-family: var(--serif);
  font-size: 11px;
  line-height: 1;
  letter-spacing: 0.14em;

  cursor: pointer;

  transition:
    background 0.3s var(--ease),
    border-color 0.3s var(--ease),
    transform 0.3s var(--ease);
}

.contact-copy:hover {
  border-color: var(--accent);
  background: var(--accent);
}

.contact-copy:active {
  transform: scale(0.97);
}

.contact-copy:focus-visible {
  outline: 1px solid var(--accent);
  outline-offset: 3px;
}

.contact-copy.is-copied {
  border-color: var(--accent);
  background: var(--accent);
}

.contact-status {
  color: var(--muted);

  font-size: 10px;
  line-height: 1.4;
  letter-spacing: 0.08em;
}

body.is-modal-open {
  overflow: hidden;
}

/* ---------------- 响应式 / 动效偏好 ---------------- */

@media (max-width: 760px), (max-aspect-ratio: 4 / 5) {
  /* 移动端把点击区域放大，别让圆角小按钮变成难点的目标 */
  .contact-open {
    padding: 13px 18px;

    font-size: 11px;
  }

  .contact-open svg {
    width: 12px;
    height: 12px;
  }

  .footer-left {
    gap: 9px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .contact-modal,
  .contact-panel {
    transition: none;
  }

  .contact-panel {
    transform: none;
  }
}