/* ============================================================
   WEB COMPRESSOR PRO - STYLES
   ============================================================ */

/* ===== RESET & BASE ===== */
* {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

body {
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  background: #f0f2f5;
  margin: 0;
  padding: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  min-height: 100vh;
}

/* ===== CONTAINER ===== */
.container {
  background: #ffffff;
  padding: 30px 35px;
  border-radius: 20px;
  box-shadow: 0 8px 40px rgba(0, 0, 0, 0.06);
  text-align: center;
  width: 100%;
  max-width: 540px;
  transition: all 0.3s ease;
  position: relative;
}

h1 {
  margin: 0 0 6px 0;
  font-size: 28px;
  font-weight: 800;
  color: #1a1a2e;
  letter-spacing: -0.5px;
}

.container > p {
  color: #6b7280;
  font-size: 14px;
  margin: 0 0 20px 0;
}

/* ===== TABS ===== */
.tabs {
  display: flex;
  gap: 6px;
  background: #f1f3f5;
  padding: 4px;
  border-radius: 12px;
  margin-bottom: 20px;
}

.tabs button {
  flex: 1;
  margin: 0;
  padding: 10px 0;
  border: none;
  border-radius: 10px;
  cursor: pointer;
  background: transparent;
  font-weight: 600;
  font-size: 14px;
  color: #6b7280;
  transition: all 0.3s ease;
}

.tabs button.active {
  background: #ffffff;
  color: #1a1a2e;
  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.06);
}

.tabs button:hover:not(.active) {
  color: #1a1a2e;
}

/* ===== SECTIONS ===== */
.section {
  margin-top: 16px;
  padding: 20px;
  background: #f8f9fa;
  border-radius: 14px;
  border: 2px dashed #e5e7eb;
  transition: all 0.3s ease;
}

.section:hover {
  border-color: #c7d2fe;
}

.section.hidden {
  display: none;
}

/* ===== FILE INPUTS ===== */
input[type="file"] {
  display: block;
  width: 100%;
  padding: 12px;
  border: 1px solid #d1d5db;
  border-radius: 10px;
  font-size: 14px;
  cursor: pointer;
  background: #ffffff;
  transition: all 0.3s ease;
}

input[type="file"]:hover {
  border-color: #6366f1;
}

input[type="file"]:focus {
  outline: none;
  border-color: #6366f1;
  box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

/* ===== FILE INFO ===== */
.file-info {
  font-size: 13px;
  color: #6b7280;
  margin: 8px 0 4px 0;
  min-height: 22px;
}

/* ===== STATS ROW ===== */
.stats-row {
  display: flex;
  gap: 8px;
  justify-content: center;
  margin: 8px 0 12px 0;
  flex-wrap: wrap;
}

.stat-badge {
  background: #f1f3f5;
  padding: 4px 14px;
  border-radius: 20px;
  font-size: 12px;
  color: #374151;
  font-weight: 500;
}

.stat-badge span {
  color: #6366f1;
  font-weight: 700;
}

/* ===== OPTIONS ROW ===== */
.options-row {
  display: flex;
  gap: 12px;
  margin: 10px 0 12px 0;
  flex-wrap: wrap;
  justify-content: center;
}

.options-row label {
  font-size: 13px;
  color: #374151;
  display: flex;
  align-items: center;
  gap: 6px;
  cursor: pointer;
}

.options-row select {
  padding: 4px 8px;
  border: 1px solid #d1d5db;
  border-radius: 6px;
  font-size: 13px;
  background: white;
  cursor: pointer;
}

.options-row select:focus {
  outline: none;
  border-color: #6366f1;
}

.options-row input[type="checkbox"] {
  width: 16px;
  height: 16px;
  accent-color: #6366f1;
  cursor: pointer;
}

/* ===== BUTTONS ===== */
button {
  background: #6366f1;
  color: white;
  border: none;
  padding: 12px 24px;
  font-size: 15px;
  font-weight: 600;
  border-radius: 10px;
  cursor: pointer;
  margin-top: 4px;
  width: 100%;
  transition: all 0.3s ease;
}

button:hover {
  background: #4f46e5;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(99, 102, 241, 0.3);
}

button:active {
  transform: scale(0.98);
}

button:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
}

/* Clear Button */
.btn-clear {
  background: #ef4444 !important;
  margin-top: 6px;
}

.btn-clear:hover {
  background: #dc2626 !important;
  box-shadow: 0 4px 16px rgba(239, 68, 68, 0.3) !important;
}

/* ===== PREVIEWS ===== */
#preview,
#videoPreview {
  margin-top: 12px;
  border-radius: 10px;
  max-width: 100%;
  max-height: 300px;
  object-fit: contain;
  background: #1a1a2e;
}

/* ===== DOWNLOAD LINKS ===== */
#downloadImage,
#downloadZip,
#downloadVideo {
  display: inline-block;
  margin-top: 10px;
  padding: 10px 20px;
  background: #22c55e;
  color: white;
  text-decoration: none;
  border-radius: 10px;
  font-weight: 600;
  font-size: 14px;
  transition: all 0.3s ease;
}

#downloadImage:hover,
#downloadZip:hover,
#downloadVideo:hover {
  background: #16a34a;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(34, 197, 94, 0.3);
}

/* ===== PROGRESS BAR ===== */
#progress-container {
  margin: 14px 0 8px 0;
  width: 100%;
  height: 8px;
  background-color: #e5e7eb;
  border-radius: 4px;
  overflow: hidden;
  display: none;
}

#progress-bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #6366f1, #22c55e);
  border-radius: 4px;
  transition: width 0.3s ease;
}

/* ===== TOAST NOTIFICATIONS ===== */
.toast {
  position: fixed;
  bottom: 24px;
  left: 50%;
  transform: translateX(-50%) translateY(80px);
  background: #1a1a2e;
  color: white;
  padding: 14px 28px;
  border-radius: 12px;
  font-size: 14px;
  font-weight: 500;
  box-shadow: 0 8px 30px rgba(0, 0, 0, 0.2);
  opacity: 0;
  transition: all 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
  z-index: 1000;
  pointer-events: none;
  max-width: 90%;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(0);
}

.toast.success {
  background: #16a34a;
}

.toast.error {
  background: #dc2626;
}

.toast.info {
  background: #6366f1;
}

/* ===== SHORTCUTS HINT ===== */
.shortcuts-hint {
  margin-top: 16px;
  font-size: 12px;
  color: #9ca3af;
}

.shortcuts-hint kbd {
  background: #f1f3f5;
  padding: 2px 8px;
  border-radius: 4px;
  font-size: 11px;
  font-weight: 700;
  color: #374151;
  border: 1px solid #e5e7eb;
}

/* ===== LOADING SPINNER ===== */
.spinner {
  display: inline-block;
  width: 16px;
  height: 16px;
  border: 2px solid #e5e7eb;
  border-top: 2px solid #6366f1;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  vertical-align: middle;
  margin-right: 8px;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 540px) {
  .container {
    padding: 20px;
    border-radius: 16px;
  }

  .section {
    padding: 16px;
  }

  .tabs button {
    font-size: 13px;
    padding: 8px 0;
  }

  .stats-row {
    gap: 6px;
  }

  .stat-badge {
    font-size: 11px;
    padding: 3px 10px;
  }

  .options-row {
    flex-direction: column;
    align-items: center;
    gap: 8px;
  }

  h1 {
    font-size: 24px;
  }

  .shortcuts-hint {
    font-size: 11px;
  }
}

@media (max-width: 380px) {
  .container {
    padding: 14px;
  }

  .section {
    padding: 12px;
  }

  .stat-badge {
    font-size: 10px;
    padding: 2px 8px;
  }

  button {
    font-size: 14px;
    padding: 10px 16px;
  }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }

  .toast {
    transition: none;
  }

  .toast.show {
    transition: none;
  }
}