/* ============================================================
   send.css — Send Page Styles
   ============================================================ */

.page-send {
  padding: var(--sp-6) 0 var(--sp-12);
}

.page-header {
  margin-bottom: var(--sp-8);
}
.page-header__back {
  display: inline-flex;
  align-items: center;
  gap: var(--sp-1);
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--clr-text-2);
  margin-bottom: var(--sp-4);
}
.page-header__title { margin-bottom: var(--sp-1); }
.page-header__sub { color: var(--clr-text-2); }

.send-layout {
  display: grid;
  grid-template-columns: 1fr 340px;
  gap: var(--sp-8);
  align-items: start;
}

/* ─── Drop Zone ──────────────────────────────────────────────────────────── */
.drop-zone {
  background: var(--glass-bg);
  backdrop-filter: blur(12px);
  border: 2px dashed var(--clr-border);
  border-radius: var(--r-xl);
  padding: var(--sp-12) var(--sp-6);
  text-align: center;
  transition: all var(--transition);
  cursor: pointer;
  position: relative;
  overflow: hidden;
}
.drop-zone:hover {
  border-color: var(--clr-primary-light);
  background: var(--clr-surface-2);
}
.drop-zone.drag-active {
  border-color: var(--clr-primary);
  background: hsl(238,80%,65%,0.05);
  transform: scale(1.02);
}
.drop-zone__icon {
  font-size: 3rem;
  color: var(--clr-primary);
  margin-bottom: var(--sp-4);
  display: inline-block;
  animation: float 4s ease-in-out infinite;
}
.drop-zone__title { font-size: 1.25rem; margin-bottom: var(--sp-2); }
.drop-zone__sub { color: var(--clr-text-2); margin-bottom: var(--sp-6); }
.drop-zone__btn {
  background: linear-gradient(135deg, var(--clr-text), var(--clr-text-2));
  color: var(--clr-bg);
  border: none;
  padding: var(--sp-3) var(--sp-6);
  border-radius: var(--r-full);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  transition: transform var(--transition), box-shadow var(--transition);
  pointer-events: none; /* Let parent handle click */
}
.drop-zone:hover .drop-zone__btn {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.drop-zone__formats {
  margin-top: var(--sp-6);
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: var(--sp-2);
  font-size: 0.75rem;
  color: var(--clr-text-3);
}
.format-tag {
  background: var(--clr-bg-2);
  padding: 2px 8px;
  border-radius: var(--r-md);
  font-weight: 500;
}

#file-input {
  width: 0.1px;
  height: 0.1px;
  opacity: 0;
  overflow: hidden;
  position: absolute;
  z-index: -1;
}

/* ─── File List Section ──────────────────────────────────────────────────── */
.file-list-section {
  margin-top: var(--sp-8);
  animation: fade-in 400ms ease;
}
.file-list-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  margin-bottom: var(--sp-4);
}
.file-list-header h3 { font-size: 1.125rem; }

.file-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: var(--sp-4);
}

.file-card {
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  border-radius: var(--r-lg);
  padding: var(--sp-3);
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  transition: transform var(--transition), box-shadow var(--transition);
  animation: scale-in 300ms ease;
}
.file-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
  border-color: var(--clr-border);
}
.file-card__thumb {
  width: 48px; height: 48px;
  background: var(--clr-bg-2);
  border-radius: var(--r-md);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary);
  flex-shrink: 0;
  overflow: hidden;
}
.file-card__thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.file-card__info { flex: 1; min-width: 0; }
.file-card__name {
  font-size: 0.875rem;
  font-weight: 600;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}
.file-card__size { font-size: 0.75rem; color: var(--clr-text-2); }
.file-card__remove {
  width: 28px; height: 28px;
  border-radius: 50%;
  border: none;
  background: transparent;
  color: var(--clr-text-3);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition);
}
.file-card__remove:hover { background: hsl(350,75%,55%,0.1); color: var(--clr-danger); }

/* ─── Sidebar ────────────────────────────────────────────────────────────── */
.sidebar {
  display: flex;
  flex-direction: column;
  gap: var(--sp-6);
  position: sticky;
  top: 100px;
}

.pairing-card { text-align: center; }
.pairing-card__title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.1em;
  color: var(--clr-text-3);
  margin-bottom: var(--sp-4);
}
.pairing-code-display { margin-bottom: var(--sp-6); }
.pairing-code {
  font-size: 2.5rem;
  font-weight: 800;
  letter-spacing: 0.25em;
  font-family: var(--font-mono);
  color: var(--clr-primary);
  background: var(--clr-bg-2);
  padding: var(--sp-3);
  border-radius: var(--r-lg);
  cursor: pointer;
  transition: all var(--transition);
  user-select: all;
}
.pairing-code:hover { background: hsl(238,80%,65%,0.1); }
.pairing-code-hint { font-size: 0.75rem; color: var(--clr-text-2); margin-top: var(--sp-2); }

.qr-container {
  display: flex;
  justify-content: center;
  margin-bottom: var(--sp-4);
}
.qr-box {
  background: #fff;
  padding: var(--sp-3);
  border-radius: var(--r-lg);
  box-shadow: 0 4px 12px rgba(0,0,0,0.05);
}
.qr-box canvas, .qr-box img { display: block; max-width: 100%; width: 160px; height: 160px; border-radius: var(--r-sm); }
.qr-placeholder {
  width: 160px; height: 160px;
  background: var(--clr-bg-2);
  border-radius: var(--r-sm);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  color: var(--clr-text-3);
  font-size: 0.875rem;
}
.qr-placeholder i { font-size: 2rem; margin-bottom: var(--sp-2); opacity: 0.5; }

.status-card { padding: var(--sp-5) var(--sp-6); }
.status-card__label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  color: var(--clr-text-3);
  margin-bottom: var(--sp-3);
}
.status-indicator {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.status-text { font-weight: 500; font-size: 0.9375rem; }
.connection-type {
  margin-top: var(--sp-3);
  font-size: 0.75rem;
  color: var(--clr-text-2);
  display: flex;
  align-items: center;
  gap: var(--sp-1);
}

.action-btns { display: flex; flex-direction: column; gap: var(--sp-3); }

/* ─── Transfer Progress ──────────────────────────────────────────────────── */
.transfer-section { animation: fade-in 400ms ease; }
.total-progress-card__header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}
.total-progress-card__title { font-weight: 600; }
.total-progress-card__pct { font-weight: 800; font-size: 1.25rem; color: var(--clr-primary); }
.total-progress-eta { font-size: 0.875rem; color: var(--clr-text-2); display: flex; justify-content: space-between; }

.file-progress-list {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
  background: var(--glass-bg);
  border: 1px solid var(--glass-border);
  padding: var(--sp-4);
  border-radius: var(--r-xl);
}
.file-progress-item {
  display: flex;
  flex-direction: column;
  gap: var(--sp-2);
}
.file-progress-item__header {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
}
.file-progress-item__icon {
  width: 32px; height: 32px;
  background: var(--clr-bg-2);
  border-radius: var(--r-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--clr-primary);
  font-size: 1rem;
}
.file-progress-item__name {
  font-size: 0.875rem;
  font-weight: 500;
  flex: 1;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}
.file-progress-item__pct { font-size: 0.875rem; font-weight: 700; }
.file-progress-item__status { font-size: 0.75rem; color: var(--clr-text-3); text-align: right; }

@media (max-width: 900px) {
  .send-layout { grid-template-columns: 1fr; }
  .sidebar { position: static; }
}

.speed-chart { width: 100%; height: 40px; margin-top: 10px; border-radius: 4px; background: rgba(0,0,0,0.2); }
#btn-pause-resume { transition: all 0.2s; }
#btn-pause-resume.paused { background: var(--clr-warning); border-color: var(--clr-warning); color: #000; }

/* --- Preview Modal -------------------------------------------------------- */
.preview-modal {
  position: fixed;
  inset: 0;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--sp-4);
}
.preview-modal.hidden { display: none; }
.preview-modal__backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0,0,0,0.85);
  backdrop-filter: blur(6px);
  cursor: pointer;
}
.preview-modal__box {
  position: relative;
  z-index: 1;
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-xl, 16px);
  width: min(90vw, 900px);
  max-height: 90vh;
  overflow: hidden;
  display: flex;
  flex-direction: column;
  animation: modalIn 0.25s ease;
}
@keyframes modalIn {
  from { opacity: 0; transform: scale(0.94) translateY(12px); }
  to   { opacity: 1; transform: scale(1) translateY(0); }
}
.preview-modal__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--sp-3) var(--sp-4);
  border-bottom: 1px solid var(--clr-border);
  gap: var(--sp-3);
  flex-shrink: 0;
}
.preview-modal__filename {
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--clr-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  flex: 1;
}
.preview-modal__actions {
  display: flex;
  align-items: center;
  gap: var(--sp-3);
  flex-shrink: 0;
}
.preview-modal__meta {
  font-size: 0.8rem;
  color: var(--clr-text-3);
}
.preview-modal__close {
  background: none;
  border: none;
  color: var(--clr-text-2);
  cursor: pointer;
  font-size: 1.1rem;
  padding: 4px 8px;
  border-radius: var(--radius);
  transition: background 0.15s, color 0.15s;
}
.preview-modal__close:hover {
  background: var(--clr-surface);
  color: var(--clr-text);
}
.preview-modal__content {
  overflow: auto;
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 200px;
  flex: 1;
  padding: var(--sp-4);
}
.preview-modal__content img {
  max-width: 100%;
  max-height: 70vh;
  border-radius: var(--radius);
  object-fit: contain;
  display: block;
}
.preview-modal__content video {
  max-width: 100%;
  max-height: 70vh;
  border-radius: var(--radius);
  display: block;
  outline: none;
}
.preview-modal__content .preview-icon-fallback {
  font-size: 5rem;
  text-align: center;
  color: var(--clr-text-3);
}

/* file-card hover preview cursor */
.file-card { cursor: pointer; }
.file-card__thumb img { transition: transform 0.2s; }
.file-card:hover .file-card__thumb img { transform: scale(1.04); }

/* --- Text Sharing Panel ---------------------------------------------------- */
.text-share-panel {
  background: var(--clr-surface-2);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius-lg);
  padding: var(--sp-4);
  margin-top: var(--sp-4);
}
.text-share-panel__title {
  font-size: 0.85rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--clr-text-2);
  margin-bottom: var(--sp-3);
  display: flex;
  align-items: center;
  gap: var(--sp-2);
}
.text-share-panel textarea {
  width: 100%;
  background: var(--clr-surface);
  border: 1px solid var(--clr-border);
  border-radius: var(--radius);
  color: var(--clr-text);
  font-family: inherit;
  font-size: 0.9rem;
  padding: var(--sp-3);
  resize: vertical;
  min-height: 80px;
  transition: border-color 0.2s;
  box-sizing: border-box;
}
.text-share-panel textarea:focus {
  outline: none;
  border-color: var(--clr-primary);
}
.text-share-panel__actions {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-top: var(--sp-2);
  gap: var(--sp-2);
}
.text-share-panel__char-count {
  font-size: 0.75rem;
  color: var(--clr-text-3);
}
.text-share-panel.disabled { opacity: 0.5; pointer-events: none; }