:root {
  --bg: #f4f6fb;
  --primary: #2563eb;
  --primary2: #60a5fa;
  --primary-soft: rgba(37, 99, 235, 0.06);
  --primary-soft2: rgba(37, 99, 235, 0.14);
  --card-bg: #ffffff;
  --text-main: #111827;
  --text-muted: #6b7280;
  --radius-xl: 22px;
  --shadow-soft: 0 10px 24px rgba(15, 23, 42, 0.05);
  --font: "Tajawal", system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --transition: 0.18s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: var(--font);
  background:
    radial-gradient(circle at top left, rgba(96, 165, 250, 0.16), transparent 55%),
    radial-gradient(circle at top right, rgba(129, 140, 248, 0.12), transparent 60%),
    var(--bg);
  color: var(--text-main);
}

.page {
  min-height: 100vh;
  max-width: 980px;
  margin: 0 auto;
  padding: 22px 16px 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
}

/* الهيدر */

.topbar {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 9px 18px;
  background: #ffffff;
  border-radius: 999px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(226, 232, 240, 0.96);
}

.credit {
  font-size: 10.5px;
  color: #374151;
  padding: 4px 14px;
  border-radius: 999px;
  background-color: #eef2ff;
  border: 1px solid rgba(129, 140, 248, 0.45);
}

/* المحتوى */

.main {
  display: flex;
  flex-direction: column;
  gap: 10px;
  align-items: center;
}

/* هيرو */

.hero {
  text-align: center;
  background:
    radial-gradient(circle at right top, rgba(96, 165, 250, 0.16), transparent),
    #ffffff;
  padding: 18px 18px 14px;
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(226, 232, 240, 0.96);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  width: 100%;
}

.hero .logo-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 16px;
  background: linear-gradient(135deg, var(--primary), var(--primary2));
  color: #ffffff;
  font-weight: 700;
  font-size: 16px;
  box-shadow: 0 6px 18px rgba(37, 99, 235, 0.38);
}

.hero h1 {
  margin: 0;
  font-size: 20px;
  font-weight: 600;
}

.hero p {
  margin: 0;
  font-size: 12.5px;
  color: var(--text-muted);
  max-width: 640px;
}

/* خطوات */

.steps {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
  gap: 8px;
  width: 100%;
}

.step {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 16px;
  background: #ffffff;
  box-shadow: 0 4px 10px rgba(15, 23, 42, 0.03);
  border: 1px solid rgba(229, 231, 235, 0.98);
  justify-content: center;
  text-align: center;
}

.step-number {
  width: 20px;
  height: 20px;
  border-radius: 999px;
  background: var(--primary);
  color: #ffffff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 11px;
  font-weight: 600;
}

.step-text {
  font-size: 10.5px;
  color: #4b5563;
}

/* الكارد الرئيسي */

.card {
  background: var(--card-bg);
  border-radius: var(--radius-xl);
  padding: 14px 14px 12px;
  box-shadow: var(--shadow-soft);
  border: 1px solid rgba(226, 232, 240, 0.98);
}

.main-card {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 960px;
  margin: 0 auto;
}

/* أقسام داخل الكارد */

.card-section {
  padding: 10px 6px;
}

.card-section + .card-section {
  border-top: 1px solid rgba(229, 231, 235, 0.9);
}

/* نصوص */

.card-row {
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.card-row.inline {
  flex-direction: row;
  align-items: center;
  gap: 10px;
}

.card-title {
  font-size: 14px;
  font-weight: 600;
  margin: 0 0 2px;
  text-align: center;
}

.hint {
  margin: 0;
  font-size: 10.5px;
  color: var(--text-muted);
  text-align: center;
}

/* اختيار الملفات */

.file-picker {
  margin-top: 6px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 16px;
  border-radius: 999px;
  border: 1px solid rgba(209, 213, 219, 1);
  background: linear-gradient(to right, #f9fafb, #eef2ff);
  cursor: pointer;
  transition: all var(--transition);
  align-self: center;
}

.file-picker:hover {
  background: linear-gradient(to right, #eef2ff, #e0f2fe);
  border-color: var(--primary);
  box-shadow: 0 8px 18px rgba(148, 163, 253, 0.25);
  transform: translateY(-1px);
}

.file-picker-icon {
  font-size: 15px;
}

.file-picker-text {
  font-size: 11.5px;
}

.file-picker input {
  display: none;
}

/* قائمة الملفات */

.file-list {
  margin-top: 2px;
  padding: 8px 8px;
  border-radius: 14px;
  background-color: #f9fafb;
  border: 1px solid rgba(229, 231, 235, 1);
  max-height: 220px;
  overflow-y: auto;
  transition: box-shadow var(--transition), transform var(--transition);
}

.file-list.hidden {
  display: none;
}

.file-list-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  font-size: 10.5px;
  margin-bottom: 3px;
}

.file-note {
  font-size: 9px;
  color: var(--text-muted);
}

.mode-label {
  font-size: 9.5px;
  color: #1d4ed8;
  background-color: #eff6ff;
  border-radius: 999px;
  padding: 3px 8px;
  display: inline-block;
  margin: 0 0 4px;
}

/* عناصر القائمة */

.file-list-ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.file-list-ul li {
  display: grid;
  grid-template-columns: 18px minmax(0, 1fr) auto auto;
  align-items: center;
  gap: 6px;
  padding: 3px 4px;
  border-radius: 7px;
  font-size: 9.5px;
  transition: background-color var(--transition), transform var(--transition), box-shadow var(--transition);
}

.file-list-ul li:nth-child(odd) {
  background: #eef2ff;
}

/* تفاعل القائمة */
.file-list-ul li:hover {
  background: #dbeafe;
  box-shadow: 0 2px 6px rgba(148, 163, 253, 0.35);
  transform: translateY(-1px);
  cursor: pointer;
}

.index {
  text-align: center;
  color: var(--primary);
  font-weight: 600;
}

.name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.size {
  color: var(--text-muted);
  font-size: 8.5px;
}

/* أزرار الصف */

.row-actions {
  display: flex;
  align-items: center;
  gap: 2px;
}

.move-btn,
.delete-btn {
  background: transparent;
  border: none;
  cursor: pointer;
  font-size: 10px;
  padding: 1px 4px;
  border-radius: 6px;
  transition: all var(--transition);
  color: #6b7280;
}

.move-btn:hover {
  color: var(--primary);
  background-color: rgba(219, 234, 254, 0.9);
  transform: translateY(-1px);
}

.delete-btn:hover {
  color: #b91c1c;
  background-color: #fee2e2;
  transform: scale(1.05);
}

/* حقل اسم الإخراج */

.card-label {
  font-size: 10.5px;
  color: #4b5563;
}

.output-input {
  flex: 1;
  padding: 7px 10px;
  font-size: 10.5px;
  border-radius: 999px;
  border: 1px solid rgba(209, 213, 219, 1);
  outline: none;
  transition: all var(--transition);
}

.output-input:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 3px var(--primary-soft2);
}

/* الأزرار */

.actions {
  margin-top: 6px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  justify-content: center;
}

.btn-main {
  flex: 1;
  padding: 9px 0;
  max-width: 420px;
  font-size: 12.5px;
  font-weight: 600;
  border: none;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--primary), var(--primary2));
  color: #ffffff;
  cursor: pointer;
  box-shadow: 0 10px 22px rgba(37, 99, 235, 0.34);
  transition: all var(--transition);
  text-align: center;
}

.btn-main:hover {
  transform: translateY(-1px);
  box-shadow: 0 14px 30px rgba(37, 99, 235, 0.42);
}

.btn-main:active {
  transform: translateY(1px);
  box-shadow: 0 6px 14px rgba(15, 23, 42, 0.34);
}

.btn-main.disabled,
.btn-main:disabled {
  opacity: 0.45;
  cursor: default;
  box-shadow: none;
}

.btn-secondary {
  padding: 9px 16px;
  font-size: 11px;
  border-radius: 999px;
  border: 1px solid #d1d5db;
  background-color: #ffffff;
  color: #6b7280;
  cursor: pointer;
  transition: all var(--transition);
}

.btn-secondary:hover {
  background-color: #eff6ff;
  color: #1d4ed8;
  border-color: #93c5fd;
}

/* حالة الرسائل */

.status {
  margin-top: 4px;
  padding: 6px 9px;
  font-size: 10px;
  border-radius: 11px;
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.status.ok {
  background: #ecfdf5;
  color: #15803d;
  border: 1px solid #bbf7d0;
}

.status.error {
  background: #fef2f2;
  color: #b91c1c;
  border: 1px solid #fecaca;
}

.status.loading {
  background: #eff6ff;
  color: #1d4ed8;
  border: 1px solid #bfdbfe;
}

.status.warning {
  background: #fffbeb;
  color: #92400e;
  border: 1px solid #fed7aa;
}

/* شريط التقدم */

.progress {
  margin-top: 6px;
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.progress.hidden {
  display: none;
}

.progress-text {
  font-size: 9.5px;
  color: #374151;
}

.progress-bar {
  width: 100%;
  height: 6px;
  background-color: #e5e7eb;
  border-radius: 999px;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--primary2));
  transition: width 0.18s ease;
}

/* تجاوب */

@media (max-width: 640px) {
  .page {
    padding: 16px 10px 20px;
  }

  .actions {
    flex-direction: column;
  }

  .btn-main,
  .btn-secondary {
    width: 100%;
    max-width: none;
  }
}