/* ============================================================
   Social Share Component — social-share.css
   ============================================================ */

/* ── 设计令牌 ── */
:root {
  --ss-radius:      10px;
  --ss-gap:         8px;
  --ss-btn-size:    40px;
  --ss-font:        'Segoe UI', system-ui, -apple-system, sans-serif;
  --ss-speed:       220ms;
  --ss-ease:        cubic-bezier(.34,1.56,.64,1);
  --ss-shadow:      0 4px 20px rgba(0,0,0,.12);
  --ss-shadow-hover:0 6px 24px rgba(0,0,0,.22);

  /* Modal */
  --ss-modal-bg:    #ffffff;
  --ss-modal-radius:20px;
  --ss-overlay:     rgba(0,0,0,.55);
}

/* ── 平台颜色 ── */
.ss-btn--facebook  { --ss-c: #1877F2; }
.ss-btn--twitter   { --ss-c: #000000; }
.ss-btn--instagram { --ss-c: #E1306C; }
.ss-btn--linkedin  { --ss-c: #0A66C2; }
.ss-btn--whatsapp  { --ss-c: #25D366; }
.ss-btn--telegram  { --ss-c: #229ED9; }
.ss-btn--pinterest { --ss-c: #E60023; }
.ss-btn--reddit    { --ss-c: #FF4500; }
.ss-btn--email     { --ss-c: #6B7280; }

/* ─────────────────────────────────────────────
   按钮组（内联模式）
───────────────────────────────────────────── */
.ss-wrap {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--ss-gap);
  font-family: var(--ss-font);
  margin: 1.5rem 0;
}

.ss-label {
  font-size: .75rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: #6b7280;
  margin-right: 4px;
}

.ss-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: var(--ss-gap);
}

/* 垂直布局 */
.ss-style-vertical .ss-wrap,
.ss-style-vertical {
  flex-direction: column;
  align-items: flex-start;
}
.ss-style-vertical .ss-buttons {
  flex-direction: column;
  width: 100%;
}

/* ── 通用按钮 ── */
.ss-btn,
.ss-copy-url,
.ss-modal__btn {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  border: none;
  cursor: pointer;
  text-decoration: none;
  font-family: var(--ss-font);
  transition:
    transform  var(--ss-speed) var(--ss-ease),
    box-shadow var(--ss-speed) ease,
    background var(--ss-speed) ease;
}

/* 内联分享按钮 */
.ss-btn {
  height: var(--ss-btn-size);
  padding: 0 14px;
  border-radius: 50px;
  font-size: .8125rem;
  font-weight: 600;
  background: var(--ss-c, #555);
  color: #fff;
  box-shadow: 0 2px 8px color-mix(in srgb, var(--ss-c, #555) 40%, transparent);
}
.ss-btn svg {
  width: 24px;
  height: 24px;
  fill: currentColor;
  flex-shrink: 0;
}
.ss-btn:hover {
  transform: translateY(-2px) scale(1.04);
  box-shadow: 0 5px 16px color-mix(in srgb, var(--ss-c, #555) 55%, transparent);
  filter: brightness(1.08);
}
.ss-btn:active {
  transform: scale(.97);
}

/* 图标专属模式 */
.ss-style-icon-only .ss-btn {
  width: var(--ss-btn-size);
  height: var(--ss-btn-size);
  padding: 0;
  justify-content: center;
  border-radius: 50%;
}

/* 复制按钮 */
.ss-copy-url {
  height: var(--ss-btn-size);
  padding: 0 14px;
  border-radius: 50px;
  font-size: .8125rem;
  font-weight: 600;
  background: #f3f4f6;
  color: #374151;
  margin-left: 4px;
}
.ss-copy-url svg {
  width: 15px;
  height: 15px;
  fill: currentColor;
}
.ss-copy-url:hover {
  background: #e5e7eb;
  transform: translateY(-2px);
}

/* ─────────────────────────────────────────────
   Modal
───────────────────────────────────────────── */
.ss-modal {
  position: fixed;
  inset: 0;
  z-index: 99999;
  display: flex;
  align-items: flex-end;        /* 手机从底部弹出 */
  justify-content: center;
}
@media (min-width: 640px) {
  .ss-modal { align-items: center; }
}

.ss-modal[hidden] { display: none !important; }

.ss-modal__backdrop {
  position: absolute;
  inset: 0;
  background: var(--ss-overlay);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  animation: ss-fade-in var(--ss-speed) ease forwards;
}

.ss-modal__box {
  position: relative;
  width: min(100%, 520px);
  background: var(--ss-modal-bg);
  border-radius: var(--ss-modal-radius) var(--ss-modal-radius) 0 0;
  padding: 28px 24px 32px;
  box-shadow: var(--ss-shadow);
  animation: ss-slide-up 300ms var(--ss-ease) forwards;
}
@media (min-width: 640px) {
  .ss-modal__box {
    border-radius: var(--ss-modal-radius);
    animation-name: ss-pop-in;
  }
}

/* Modal close */
.ss-modal__close {
  position: absolute;
  top: 14px;
  right: 16px;
  width: 32px;
  height: 32px;
  border: none;
  background: #f3f4f6;
  border-radius: 50%;
  font-size: 1.25rem;
  line-height: 1;
  cursor: pointer;
  color: #374151;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background var(--ss-speed) ease;
}
.ss-modal__close:hover { background: #e5e7eb; }

/* Modal title */
.ss-modal__title {
  font-size: 1.125rem;
  font-weight: 700;
  color: #111827;
  margin: 0 0 16px;
}

/* Thumbnail */
.ss-modal__thumb {
  display: flex;
  align-items: center;
  gap: 12px;
  background: #f9fafb;
  border-radius: 10px;
  padding: 10px 14px;
  margin-bottom: 20px;
}
.ss-modal__thumb img {
  width: 52px;
  height: 52px;
  object-fit: cover;
  border-radius: 6px;
  flex-shrink: 0;
}
.ss-modal__post-title {
  font-size: .875rem;
  font-weight: 600;
  color: #374151;
  margin: 0;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

/* Platform grid */
.ss-modal__grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(90px, 1fr));
  gap: 10px;
  margin-bottom: 20px;
}
.ss-modal__btn {
  flex-direction: column;
  gap: 6px;
  padding: 14px 8px;
  border-radius: 12px;
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .02em;
  background: color-mix(in srgb, var(--ss-c, #555) 10%, #fff);
  color: var(--ss-c, #555);
  text-align: center;
  text-decoration: none;
}
.ss-modal__btn svg {
  width: 22px;
  height: 22px;
  fill: var(--ss-c, #555);
}
.ss-modal__btn:hover {
  background: var(--ss-c, #555);
  color: #fff;
  transform: translateY(-3px) scale(1.05);
  box-shadow: 0 6px 16px color-mix(in srgb, var(--ss-c, #555) 45%, transparent);
}
.ss-modal__btn:hover svg { fill: #fff; }

/* Copy row */
.ss-modal__copy-row {
  display: flex;
  gap: 8px;
  background: #f3f4f6;
  border-radius: 10px;
  padding: 6px 8px 6px 14px;
  align-items: center;
}
.ss-modal__url-input {
  flex: 1;
  border: none;
  background: transparent;
  font-size: .8125rem;
  color: #374151;
  outline: none;
  min-width: 0;
}
.ss-modal__copy-btn {
  height: 34px;
  padding: 0 16px;
  border: none;
  border-radius: 8px;
  background: #111827;
  color: #fff;
  font-size: .8125rem;
  font-weight: 600;
  cursor: pointer;
  flex-shrink: 0;
  transition: background var(--ss-speed) ease, transform var(--ss-speed) var(--ss-ease);
}
.ss-modal__copy-btn:hover {
  background: #374151;
  transform: scale(1.03);
}
.ss-modal__copy-btn.ss--copied {
  background: #16a34a;
}

/* Toast */
.ss-toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(8px);
  background: #1f2937;
  color: #fff;
  padding: 10px 20px;
  border-radius: 50px;
  font-size: .875rem;
  font-weight: 600;
  z-index: 1000000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 250ms ease, transform 250ms ease;
  white-space: nowrap;
}
.ss-toast.ss--visible {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

/* ── Keyframes ── */
@keyframes ss-fade-in  { from { opacity:0 } to { opacity:1 } }
@keyframes ss-slide-up { from { transform:translateY(100%) } to { transform:translateY(0) } }
@keyframes ss-pop-in   { from { opacity:0; transform:scale(.92) } to { opacity:1; transform:scale(1) } }

/* ── Dark mode ── */
@media (prefers-color-scheme: dark) {
  :root {
    --ss-modal-bg: #1f2937;
  }
  .ss-modal__title        { color: #f9fafb; }
  .ss-modal__thumb        { background: #374151; }
  .ss-modal__post-title   { color: #e5e7eb; }
  .ss-modal__copy-row     { background: #374151; }
  .ss-modal__url-input    { color: #e5e7eb; }
  .ss-modal__copy-btn     { background: #f9fafb; color: #111827; }
  .ss-modal__close        { background: #374151; color: #f9fafb; }
  .ss-modal__btn {
    background: color-mix(in srgb, var(--ss-c, #555) 18%, #374151);
    color: color-mix(in srgb, var(--ss-c, #555) 90%, #fff);
  }
  .ss-modal__btn svg { fill: color-mix(in srgb, var(--ss-c, #555) 90%, #fff); }
  .ss-copy-url { background: #374151; color: #e5e7eb; }
  .ss-label    { color: #9ca3af; }
}