/* ==========================================================================
   Converter Tools — Shared UI States
   ========================================================================== */

/* ── Drop Zone ─────────────────────────────────────────────────────────── */
.conv-dropzone {
  border: 2px dashed var(--glass-border);
  border-radius: var(--border-radius-lg);
  background: var(--bg-secondary);
  padding: 2.5rem 2rem;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s, transform 0.15s;
  position: relative;
}

.conv-dropzone:hover,
.conv-dropzone--drag-over {
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.05);
  transform: translateY(-2px);
}

.conv-dropzone--loaded {
  border-color: var(--success);
  border-style: solid;
  background: rgba(52, 211, 153, 0.04);
  cursor: default;
}

.conv-dropzone__icon {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  line-height: 1;
  filter: drop-shadow(0 0 12px rgba(59, 130, 246, 0.35));
}

.conv-dropzone__hint {
  font-size: 1.1rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.75rem;
}

.conv-dropzone__meta {
  margin-top: 0.75rem;
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

/* ── File Info Panel (shown after file is selected) ─────────────────────── */
.conv-file-info {
  display: flex;
  align-items: center;
  gap: 0.875rem;
  padding: 1rem 1.25rem;
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid rgba(52, 211, 153, 0.25);
  border-radius: var(--border-radius);
  text-align: left;
  flex-wrap: wrap;
}

.conv-file-info__icon {
  font-size: 1.75rem;
  flex-shrink: 0;
}

.conv-file-info__details {
  flex: 1;
  min-width: 0;
}

.conv-file-info__name {
  display: block;
  font-weight: 600;
  color: var(--text-primary);
  font-size: 0.95rem;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.conv-file-info__size {
  display: block;
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-top: 0.15rem;
}

.conv-file-info__badge {
  background: rgba(59, 130, 246, 0.15);
  color: var(--accent-primary);
  border: 1px solid rgba(59, 130, 246, 0.3);
  border-radius: 999px;
  padding: 0.2rem 0.65rem;
  font-size: 0.75rem;
  font-weight: 600;
  white-space: nowrap;
  flex-shrink: 0;
}

/* ── Action Buttons Row ─────────────────────────────────────────────────── */
.conv-actions {
  display: flex;
  gap: 0.875rem;
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.conv-actions .btn--primary {
  flex: 1;
  min-width: 160px;
  font-size: 1rem;
  padding: 0.875rem 1.5rem;
}

/* ── Progress Panel ─────────────────────────────────────────────────────── */
.conv-progress {
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--glass-border);
  border-radius: var(--border-radius-lg);
  margin-top: 1.25rem;
}

.conv-progress__header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.conv-progress__spinner {
  width: 20px;
  height: 20px;
  border: 2.5px solid var(--glass-border);
  border-top-color: var(--accent-primary);
  border-radius: 50%;
  animation: conv-spin 0.7s linear infinite;
  flex-shrink: 0;
}

@keyframes conv-spin {
  to { transform: rotate(360deg); }
}

.conv-progress__label {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
}

.conv-progress__bar-track {
  width: 100%;
  height: 6px;
  background: var(--bg-elevated);
  border-radius: 999px;
  overflow: hidden;
  margin-bottom: 0.65rem;
}

.conv-progress__bar-fill {
  height: 100%;
  background: var(--accent-gradient);
  border-radius: 999px;
  transition: width 0.35s ease;
  width: 0%;
}

.conv-progress__bar-fill--indeterminate {
  width: 40% !important;
  animation: conv-indeterminate 1.4s ease-in-out infinite;
}

@keyframes conv-indeterminate {
  0%   { transform: translateX(-150%); }
  100% { transform: translateX(350%); }
}

.conv-progress__msg {
  font-size: 0.82rem;
  color: var(--text-secondary);
  min-height: 1.2em;
}

/* ── Success Panel ──────────────────────────────────────────────────────── */
.conv-success {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem;
  background: rgba(52, 211, 153, 0.08);
  border: 1px solid rgba(52, 211, 153, 0.3);
  border-radius: var(--border-radius-lg);
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.conv-success__checkmark {
  width: 44px;
  height: 44px;
  background: rgba(52, 211, 153, 0.15);
  border: 2px solid var(--success);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.25rem;
  flex-shrink: 0;
  animation: conv-pop 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes conv-pop {
  0%   { transform: scale(0.5); opacity: 0; }
  100% { transform: scale(1);   opacity: 1; }
}

.conv-success__text {
  flex: 1;
  min-width: 0;
}

.conv-success__title {
  font-weight: 700;
  font-size: 1rem;
  color: var(--success);
  margin-bottom: 0.15rem;
}

.conv-success__meta {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

.conv-success__actions {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.btn--download {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  background: var(--success);
  color: #0a1a0e;
  font-weight: 700;
  padding: 0.7rem 1.5rem;
  border-radius: var(--border-radius);
  border: none;
  cursor: pointer;
  font-size: 0.95rem;
  transition: filter 0.2s, transform 0.15s;
  text-decoration: none;
  white-space: nowrap;
}

.btn--download:hover {
  filter: brightness(1.1);
  transform: translateY(-1px);
}

.btn--download:active {
  transform: translateY(0);
}

.btn--ghost {
  background: transparent;
  color: var(--text-secondary);
  border: 1px solid var(--glass-border);
  padding: 0.65rem 1.1rem;
  border-radius: var(--border-radius);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
  white-space: nowrap;
}

.btn--ghost:hover {
  color: var(--text-primary);
  border-color: var(--accent-primary);
  background: rgba(59, 130, 246, 0.06);
}

/* ── Error Panel ────────────────────────────────────────────────────────── */
.conv-error {
  display: flex;
  align-items: flex-start;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: rgba(239, 68, 68, 0.08);
  border: 1px solid rgba(239, 68, 68, 0.3);
  border-radius: var(--border-radius-lg);
  margin-top: 1.25rem;
  flex-wrap: wrap;
}

.conv-error__icon {
  width: 36px;
  height: 36px;
  background: rgba(239, 68, 68, 0.15);
  border: 1.5px solid rgba(239, 68, 68, 0.5);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  flex-shrink: 0;
  color: var(--error);
  font-weight: 700;
}

.conv-error__body {
  flex: 1;
  min-width: 0;
}

.conv-error__msg {
  font-weight: 600;
  color: var(--error);
  font-size: 0.95rem;
  margin-bottom: 0.25rem;
}

.conv-error__suggestion {
  font-size: 0.82rem;
  color: var(--text-secondary);
}

/* ── Size Warning Banner ────────────────────────────────────────────────── */
.conv-warning {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  padding: 0.75rem 1rem;
  background: rgba(245, 158, 11, 0.1);
  border-left: 3px solid var(--warning);
  border-radius: 0 var(--border-radius-sm) var(--border-radius-sm) 0;
  margin-top: 0.75rem;
  font-size: 0.83rem;
  color: var(--text-secondary);
}

.conv-warning__icon {
  font-size: 1rem;
  flex-shrink: 0;
}

/* ── Limitation Note ────────────────────────────────────────────────────── */
.conv-note {
  display: flex;
  gap: 0.65rem;
  align-items: flex-start;
  padding: 0.875rem 1rem;
  background: rgba(59, 130, 246, 0.06);
  border: 1px solid rgba(59, 130, 246, 0.15);
  border-radius: var(--border-radius);
  font-size: 0.83rem;
  color: var(--text-secondary);
  line-height: 1.5;
  margin-top: 1rem;
}

.conv-note__icon {
  flex-shrink: 0;
  font-size: 0.9rem;
  margin-top: 0.1rem;
}

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .conv-dropzone {
    padding: 2rem 1rem;
  }

  .conv-success {
    flex-direction: column;
    align-items: flex-start;
  }

  .conv-success__actions {
    width: 100%;
  }

  .btn--download {
    width: 100%;
    justify-content: center;
  }

  .conv-actions {
    flex-direction: column;
  }

  .conv-actions .btn--primary,
  .conv-actions .btn--ghost {
    width: 100%;
  }
}