/* ─── CVX Converter — Styles ──────────────────────────────────────────────── */
@import url('https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=DM+Sans:wght@300;400;500;600&display=swap');

:root {
  --cvx-bg:         #0d0f14;
  --cvx-surface:    #13161e;
  --cvx-surface2:   #1a1e2a;
  --cvx-border:     #252a38;
  --cvx-accent:     #5b8fff;
  --cvx-accent2:    #38e8b5;
  --cvx-text:       #e8eaf2;
  --cvx-muted:      #7880a0;
  --cvx-radius:     14px;
  --cvx-radius-sm:  8px;
  --cvx-font-mono:  'Space Mono', monospace;
  --cvx-font-body:  'DM Sans', sans-serif;
  --cvx-shadow:     0 8px 40px rgba(0,0,0,0.45);
}

/* Wrap */
.cvx-wrap {
  font-family: var(--cvx-font-body);
  background: var(--cvx-bg);
  color: var(--cvx-text);
  max-width: 680px;
  margin: 40px auto;
  padding: 40px 32px;
  border-radius: 24px;
  border: 1px solid var(--cvx-border);
  box-shadow: var(--cvx-shadow);
  position: relative;
  overflow: hidden;
}
.cvx-wrap::before {
  content: '';
  position: absolute;
  top: -80px; right: -80px;
  width: 320px; height: 320px;
  background: radial-gradient(circle, rgba(91,143,255,0.12) 0%, transparent 70%);
  pointer-events: none;
}

/* Header */
.cvx-header { text-align: center; margin-bottom: 32px; }
.cvx-logo { display: flex; align-items: center; justify-content: center; gap: 10px; margin-bottom: 8px; }
.cvx-logo-icon { font-size: 28px; color: var(--cvx-accent); }
.cvx-logo-text {
  font-family: var(--cvx-font-mono);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--cvx-text);
}
.cvx-logo-text span { color: var(--cvx-accent); }
.cvx-tagline { color: var(--cvx-muted); font-size: 14px; margin: 0; }
.cvx-tagline code {
  background: var(--cvx-surface2);
  color: var(--cvx-accent2);
  padding: 1px 6px;
  border-radius: 4px;
  font-family: var(--cvx-font-mono);
  font-size: 12px;
}

/* Mode Toggle */
.cvx-mode-toggle {
  display: flex;
  align-items: stretch;
  gap: 0;
  background: var(--cvx-surface);
  border: 1px solid var(--cvx-border);
  border-radius: var(--cvx-radius);
  margin-bottom: 28px;
  overflow: hidden;
}
.cvx-mode-btn {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 2px;
  padding: 16px;
  background: transparent;
  border: none;
  color: var(--cvx-muted);
  cursor: pointer;
  transition: all 0.2s;
  font-family: var(--cvx-font-body);
}
.cvx-mode-btn span { font-size: 15px; font-weight: 600; color: inherit; }
.cvx-mode-btn small { font-size: 11px; color: var(--cvx-muted); font-family: var(--cvx-font-mono); }
.cvx-mode-btn .cvx-btn-icon { font-size: 22px; margin-bottom: 2px; }
.cvx-mode-btn.active {
  background: var(--cvx-surface2);
  color: var(--cvx-text);
  box-shadow: inset 0 0 0 1px var(--cvx-border);
}
.cvx-mode-btn:hover:not(.active) { background: rgba(255,255,255,0.04); color: var(--cvx-text); }
.cvx-toggle-divider { width: 1px; background: var(--cvx-border); }

/* Drop Zone */
.cvx-dropzone {
  border: 2px dashed var(--cvx-border);
  border-radius: var(--cvx-radius);
  background: var(--cvx-surface);
  min-height: 180px;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-bottom: 20px;
  overflow: hidden;
}
.cvx-dropzone:hover,
.cvx-dropzone.drag-over {
  border-color: var(--cvx-accent);
  background: rgba(91,143,255,0.05);
}
.cvx-drop-inner {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  padding: 32px;
  text-align: center;
}
.cvx-drop-icon { width: 52px; height: 52px; color: var(--cvx-accent); opacity: 0.8; }
.cvx-drop-label { font-size: 16px; font-weight: 600; margin: 0; }
.cvx-drop-sub { font-size: 13px; color: var(--cvx-muted); margin: 0; font-family: var(--cvx-font-mono); }
.cvx-browse-btn {
  display: inline-block;
  margin-top: 6px;
  padding: 9px 24px;
  background: var(--cvx-accent);
  color: #fff;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 600;
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s;
  user-select: none;
}
.cvx-browse-btn:hover { opacity: 0.88; transform: translateY(-1px); }
.cvx-drop-overlay {
  position: absolute;
  inset: 0;
  background: rgba(91,143,255,0.12);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  font-weight: 700;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.15s;
}
.cvx-dropzone.drag-over .cvx-drop-overlay { opacity: 1; }

/* File Preview */
.cvx-file-preview {
  display: flex;
  align-items: center;
  gap: 14px;
  background: var(--cvx-surface);
  border: 1px solid var(--cvx-border);
  border-radius: var(--cvx-radius-sm);
  padding: 14px 16px;
  margin-bottom: 20px;
}
.cvx-file-icon { font-size: 30px; flex-shrink: 0; }
.cvx-file-info { flex: 1; min-width: 0; }
.cvx-file-name { font-size: 14px; font-weight: 600; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cvx-file-meta { font-size: 12px; color: var(--cvx-muted); font-family: var(--cvx-font-mono); margin-top: 2px; }
.cvx-file-remove {
  background: none; border: none; color: var(--cvx-muted);
  font-size: 16px; cursor: pointer; padding: 4px 8px;
  border-radius: 4px; transition: color 0.15s;
}
.cvx-file-remove:hover { color: #ff6b6b; }

/* Action Row */
.cvx-action-row { text-align: center; margin-bottom: 20px; }
.cvx-convert-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 14px 48px;
  background: linear-gradient(135deg, var(--cvx-accent), #7c5cfc);
  color: #fff;
  border: none;
  border-radius: 40px;
  font-size: 16px;
  font-weight: 700;
  font-family: var(--cvx-font-body);
  cursor: pointer;
  transition: opacity 0.15s, transform 0.15s, box-shadow 0.15s;
  box-shadow: 0 4px 20px rgba(91,143,255,0.35);
  letter-spacing: 0.2px;
}
.cvx-convert-btn:hover { opacity: 0.9; transform: translateY(-2px); box-shadow: 0 8px 28px rgba(91,143,255,0.4); }
.cvx-convert-btn:disabled { opacity: 0.5; cursor: not-allowed; transform: none; }

/* Spinner */
.cvx-convert-spinner {
  width: 18px; height: 18px;
  border: 2.5px solid rgba(255,255,255,0.3);
  border-top-color: #fff;
  border-radius: 50%;
  animation: cvx-spin 0.8s linear infinite;
}
@keyframes cvx-spin { to { transform: rotate(360deg); } }

/* Progress */
.cvx-progress-wrap { margin-bottom: 20px; }
.cvx-progress-bar {
  height: 6px;
  background: var(--cvx-surface2);
  border-radius: 4px;
  overflow: hidden;
  margin-bottom: 8px;
}
.cvx-progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--cvx-accent), var(--cvx-accent2));
  border-radius: 4px;
  transition: width 0.4s ease;
  animation: cvx-pulse-progress 1.5s ease-in-out infinite;
}
@keyframes cvx-pulse-progress {
  0%, 100% { opacity: 1; } 50% { opacity: 0.7; }
}
.cvx-progress-label { font-size: 13px; color: var(--cvx-muted); text-align: center; font-family: var(--cvx-font-mono); }

/* Result */
.cvx-result {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 14px;
  background: rgba(56,232,181,0.06);
  border: 1px solid rgba(56,232,181,0.25);
  border-radius: var(--cvx-radius);
  padding: 20px 22px;
  margin-bottom: 28px;
  animation: cvx-fadein 0.3s ease;
}
@keyframes cvx-fadein { from { opacity:0; transform: translateY(6px); } to { opacity:1; transform: none; } }
.cvx-result-icon { font-size: 28px; flex-shrink: 0; }
.cvx-result-info { flex: 1; min-width: 0; }
.cvx-result-title { font-size: 15px; font-weight: 700; color: var(--cvx-accent2); }
.cvx-result-filename { font-size: 13px; font-family: var(--cvx-font-mono); margin-top: 2px; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.cvx-result-meta { font-size: 12px; color: var(--cvx-muted); margin-top: 2px; }
.cvx-download-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 10px 22px;
  background: var(--cvx-accent2);
  color: #0d0f14;
  border-radius: 40px;
  font-size: 14px;
  font-weight: 700;
  text-decoration: none;
  transition: opacity 0.15s, transform 0.15s;
  white-space: nowrap;
}
.cvx-download-btn:hover { opacity: 0.88; transform: translateY(-1px); color: #0d0f14; }
.cvx-again-btn {
  background: none;
  border: 1px solid var(--cvx-border);
  color: var(--cvx-muted);
  padding: 9px 18px;
  border-radius: 40px;
  font-size: 13px;
  cursor: pointer;
  transition: color 0.15s, border-color 0.15s;
  font-family: var(--cvx-font-body);
}
.cvx-again-btn:hover { color: var(--cvx-text); border-color: var(--cvx-accent); }

/* Error */
.cvx-error {
  display: flex;
  align-items: center;
  gap: 10px;
  background: rgba(255,107,107,0.08);
  border: 1px solid rgba(255,107,107,0.3);
  border-radius: var(--cvx-radius-sm);
  padding: 14px 18px;
  margin-bottom: 20px;
  font-size: 14px;
  color: #ff9999;
  animation: cvx-fadein 0.25s ease;
}
.cvx-error-icon { font-size: 18px; flex-shrink: 0; }

/* Info Grid */
.cvx-info-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
  margin-top: 32px;
}
.cvx-info-card {
  background: var(--cvx-surface);
  border: 1px solid var(--cvx-border);
  border-radius: var(--cvx-radius-sm);
  padding: 18px 16px;
}
.cvx-info-icon { font-size: 22px; margin-bottom: 8px; }
.cvx-info-card h3 { font-size: 13px; font-weight: 700; margin: 0 0 6px; color: var(--cvx-text); }
.cvx-info-card p { font-size: 12px; color: var(--cvx-muted); margin: 0; line-height: 1.5; }
.cvx-info-card code {
  background: var(--cvx-surface2);
  color: var(--cvx-accent2);
  padding: 1px 4px;
  border-radius: 3px;
  font-family: var(--cvx-font-mono);
  font-size: 11px;
}

/* Responsive */
@media (max-width: 600px) {
  .cvx-wrap { padding: 24px 18px; margin: 20px 12px; }
  .cvx-info-grid { grid-template-columns: 1fr; }
  .cvx-result { flex-direction: column; align-items: flex-start; }
}

/* Mode labels for pack/unpack only pages */
.cvx-mode-label {
  display: flex; align-items: center; gap: 8px;
  padding: 12px 16px; border-radius: 10px;
  font-size: 14px; font-weight: 500; margin-bottom: 20px;
}
.cvx-mode-label code {
  background: var(--cvx-surface2); color: var(--cvx-accent2);
  padding: 1px 6px; border-radius: 4px;
  font-family: var(--cvx-font-mono); font-size: 12px;
}
.cvx-mode-label--pack   { background: rgba(91,143,255,0.08); border: 1px solid rgba(91,143,255,0.2); color: var(--cvx-text); }
.cvx-mode-label--unpack { background: rgba(56,232,181,0.08); border: 1px solid rgba(56,232,181,0.2); color: var(--cvx-text); }

/* Mode Badge (for single-mode pages) */
.cvx-mode-badge {
  text-align: center;
  padding: 10px 20px;
  border-radius: 40px;
  font-size: 13px;
  font-weight: 600;
  font-family: var(--cvx-font-mono);
  margin-bottom: 20px;
  display: inline-block;
  width: 100%;
  box-sizing: border-box;
}
.cvx-mode-badge--pack {
  background: rgba(91,143,255,0.1);
  color: var(--cvx-accent);
  border: 1px solid rgba(91,143,255,0.2);
}
.cvx-mode-badge--unpack {
  background: rgba(56,232,181,0.1);
  color: var(--cvx-accent2);
  border: 1px solid rgba(56,232,181,0.2);
}