/* ===== Original CSS (unchanged) ===== */
:root {
  --bg: linear-gradient(135deg, #3b82f6, #8b5cf6);
  --card: rgba(255, 255, 255, 0.75);
  --text: #0f1724;
  --muted: #6b7280;
  --accent: #0078d7;
  --accent-2: #60a5fa;
  --danger: #e04848;
  --glass: rgba(255, 255, 255, 0.5);
  --toolbar-bg: rgba(15, 23, 36, 0.03);
  --shadow: rgba(0, 0, 0, 0.08);
}

/* ===== Dark Theme ===== */
body.dark {
  --bg: linear-gradient(135deg, #0b0f14, #1e1b4b);
  --card: rgba(16, 24, 38, 0.6);
  --text: #e6eef7;
  --muted: #9aa7b6;
  --accent: #2ea0ff;
  --accent-2: #8b5cf6;
  --danger: #ff6b6b;
  --glass: rgba(255, 255, 255, 0.05);
  --toolbar-bg: rgba(255, 255, 255, 0.04);
  --shadow: rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
  margin: 0;
  font-family: "Inter", system-ui, Arial, sans-serif;
  background: var(--bg);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
}

.hidden {
  display: none;
}

/* ===== Loader ===== */
#loader {
  position: fixed;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  z-index: 9999;
  color: #fff;
  overflow: hidden;
}

.loader-circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  background: radial-gradient(circle at top left, #fff, rgba(255, 255, 255, 0.3));
  display: flex;
  align-items: center;
  justify-content: center;
  animation: pulse 2s infinite ease-in-out;
  box-shadow: 0 0 20px rgba(255, 255, 255, 0.6);
}

.loader-circle span {
  font-size: 48px;
  font-weight: 800;
  color: #fff;
  text-shadow: 0 0 10px rgba(255, 255, 255, 0.9);
  animation: floatM 2s infinite alternate ease-in-out;
}

.loader-content .sub {
  margin-top: 16px;
  font-size: 15px;
  opacity: 0.9;
  letter-spacing: 1px;
}

@keyframes pulse {
  0%, 100% {
    transform: scale(1);
    box-shadow: 0 0 20px rgba(255, 255, 255, 0.6);
  }
  50% {
    transform: scale(1.15);
    box-shadow: 0 0 40px rgba(255, 255, 255, 0.9);
  }
}

@keyframes floatM {
  from {
    transform: translateY(0);
  }
  to {
    transform: translateY(-8px);
  }
}

/* ===== App Container ===== */
.app-container {
  max-width: 1250px;
  margin: 40px auto;
  background: var(--card);
  backdrop-filter: blur(20px) saturate(150%);
  border-radius: 24px;
  box-shadow: 0 8px 40px var(--shadow);
  overflow: hidden;
  transition: all 0.3s ease;
  border: 1px solid rgba(255, 255, 255, 0.2);
  background-image: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.3),
    rgba(255, 255, 255, 0.1)
  );
}

.app-container:hover {
  box-shadow: 0 12px 50px var(--accent-2);
  transform: translateY(-2px);
}

/* ===== Topbar ===== */
.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 12px 20px;
  background: var(--card);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: 20px 20px 0 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}
.logo-small {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--accent), #2ecc71);
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 10px;
  color: white;
  font-weight: 700;
}
.brand-text h1 {
  margin: 0;
  font-size: 18px;
}
.brand-sub {
  font-size: 12px;
  color: var(--muted);
}

/* ===== Dashboard stats ===== */
.dashboard-stats {
  display: flex;
  gap: 12px;
  align-items: center;
}
.stat-card {
  display: flex;
  gap: 10px;
  align-items: center;
  background: var(--card);
  padding: 8px 12px;
  border-radius: 10px;
  box-shadow: 0 6px 18px rgba(10, 10, 10, 0.04);
  min-width: 120px;
}
.stat-card .icon {
  font-size: 20px;
}
.stat-num {
  font-weight: 700;
  font-size: 18px;
}
.stat-label {
  font-size: 12px;
  color: var(--muted);
}

/* ===== Top actions ===== */
.top-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}
#welcome {
  font-size: 14px;
  color: var(--accent);
  font-weight: 600;
}
.top-actions input {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  min-width: 220px;
  background: transparent;
  color: var(--text);
}
.top-actions button,
.import-label {
  padding: 8px 10px;
  border-radius: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
}
.import-label input {
  display: none;
}

/* ===== Layout ===== */
.layout {
  display: flex;
  gap: 20px;
  padding: 20px;
  max-width: 1200px;
  margin: 0 auto;
  align-items: flex-start;
}

/* ===== Sidebar ===== */
.sidebar {
  width: 280px;
  background: var(--card);
  border-radius: 12px;
  padding: 12px;
  box-shadow: 0 10px 30px rgba(10, 10, 10, 0.04);
  overflow: auto;
  max-height: 75vh;
}
.sidebar-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 8px;
}
.sidebar-header h3 {
  margin: 0;
}
.sidebar-header button {
  background: var(--accent);
  color: white;
  border: none;
  padding: 6px 10px;
  border-radius: 8px;
  cursor: pointer;
}
.filters {
  display: flex;
  gap: 8px;
  margin-bottom: 10px;
}
.filter-btn {
  padding: 6px 8px;
  border-radius: 8px;
  border: none;
  background: transparent;
  cursor: pointer;
  color: var(--muted);
}
.filter-btn.active {
  background: var(--accent);
  color: white;
}
.tag-list {
  margin-bottom: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}
.tag-item {
  background: rgba(0, 0, 0, 0.06);
  padding: 6px 8px;
  border-radius: 6px;
  font-size: 12px;
  cursor: pointer;
}

/* ===== Notes list ===== */
.notes-list {
  list-style: none;
  padding: 0;
  margin: 0;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.note-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 10px;
  border-radius: 10px;
  background: var(--glass);
  cursor: pointer;
  transition: transform 0.12s ease, background 0.12s;
}
.note-item:hover {
  transform: translateY(-4px);
  background: rgba(0, 0, 0, 0.06);
}
.note-main strong {
  display: block;
}
.note-main .meta {
  font-size: 12px;
  color: var(--muted);
}

/* ===== Editor ===== */
.main {
  flex: 1;
}
.editor-area {
  background: var(--card);
  padding: 14px;
  border-radius: 12px;
  box-shadow: 0 10px 30px rgba(10, 10, 10, 0.04);
}
#note-title {
  width: 100%;
  padding: 10px;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  margin-bottom: 8px;
  font-weight: 600;
}
.editor-controls {
  display: flex;
  gap: 8px;
  align-items: center;
  margin-bottom: 12px;
}
.editor-controls input {
  padding: 8px 10px;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  min-width: 180px;
}
.editor-controls button {
  padding: 8px 10px;
  border-radius: 8px;
  border: none;
  cursor: pointer;
  background: var(--accent);
  color: white;
}
.editor-controls button.danger {
  background: var(--danger);
}
.editor-panel {
  display: flex;
  gap: 12px;
}
#editor {
  width: 50%;
  height: 60vh;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  resize: none;
  font-family: "Source Code Pro", monospace;
  background: transparent;
  color: var(--text);
}
.preview {
  width: 50%;
  height: 60vh;
  padding: 12px;
  border-radius: 8px;
  border: 1px solid rgba(0, 0, 0, 0.06);
  overflow: auto;
  background: var(--glass);
}

/* ===== Tag suggestions ===== */
.tag-suggestions {
  margin-top: 10px;
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
}
.tag-suggestion {
  background: var(--accent);
  color: #fff;
  padding: 6px 10px;
  border-radius: 20px;
  cursor: pointer;
  font-size: 13px;
}

/* ===== Footer ===== */
footer {
  text-align: center;
  padding: 14px;
  background: var(--card);
  color: var(--muted);
  font-size: 0.9em;
  border-top: none;
  margin-top: 0;
  border-radius: 0 0 24px 24px;
  box-shadow: 0 -2px 20px rgba(0, 0, 0, 0.1);
}
body.dark footer {
  background: rgba(21, 27, 38, 0.4);
  color: #bbb;
  border-top: none;
}

/* ===== Animations ===== */
@keyframes fadeUp {
  0% {
    opacity: 0;
    transform: translateY(40px) scale(0.98);
  }
  60% {
    opacity: 1;
    transform: translateY(-5px) scale(1.01);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.app-container {
  animation: fadeUp 0.8s ease forwards;
  opacity: 0;
}

@keyframes fadeOut {
  from {
    opacity: 1;
  }
  to {
    opacity: 0;
    visibility: hidden;
  }
}

#loader.fade-out {
  animation: fadeOut 0.6s ease forwards;
}

/* ===== Responsive ===== */
@media (max-width: 900px) {
  .layout {
    flex-direction: column;
    padding: 10px;
  }
  .sidebar {
    width: 100%;
    max-height: none;
  }
  .editor-panel {
    flex-direction: column;
  }
  #editor,
  .preview {
    width: 100%;
    height: 45vh;
  }
  .dashboard-stats {
    display: none;
  }
}


/* =========================
   🌀 LOADER SECTION
========================= */

#loader {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: radial-gradient(circle at center, #0d0f25, #070719);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  z-index: 9999;
  color: #fff;
  font-family: 'Inter', sans-serif;
  overflow: hidden;
}

/* ===== دائرة التحميل المتوهجة ===== */
.loader-circle {
  width: 100px;
  height: 100px;
  border-radius: 50%;
  position: relative;
  border: 2px solid rgba(255, 255, 255, 0.15);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1rem;
  animation: spin 4s linear forwards; /* ⏱ دورة واحدة فقط */
  box-shadow: 0 0 30px rgba(92, 135, 255, 0.4);
  background: radial-gradient(circle at 40% 40%, #2a2a72 0%, #009ffd 80%);
}

/* ===== الحرف M المتوهج ===== */
.loader-circle span {
  font-size: 2.5rem;
  font-weight: 700;
  color: #ffffff;
  text-shadow: 0 0 15px rgba(0, 153, 255, 0.9);
  animation: glow 2s ease-in-out infinite alternate;
}

/* ===== حركة الدوران ===== */
@keyframes spin {
  from {
    transform: rotate(0deg);
  }
  to {
    transform: rotate(360deg);
  }
}

/* ===== وميض الحرف M ===== */
@keyframes glow {
  from {
    text-shadow: 0 0 10px rgba(0, 153, 255, 0.5);
  }
  to {
    text-shadow: 0 0 25px rgba(0, 153, 255, 1);
  }
}

/* ===== نصوص التحميل ===== */
.loader-content {
  text-align: center;
  animation: fadeIn 1.2s ease-in-out forwards;
}

.loader-content h1 {
  font-size: 1.8rem;
  font-weight: 700;
  margin: 0;
  letter-spacing: 0.5px;
}

.loader-content p {
  font-size: 0.95rem;
  color: rgba(255, 255, 255, 0.75);
  margin-top: 0.5rem;
}

/* ===== دخول ناعم للنص ===== */
@keyframes fadeIn {
  0% {
    opacity: 0;
    transform: translateY(15px);
  }
  100% {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ===== اختفاء ناعم بعد التحميل ===== */
#loader.fade-out {
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.8s ease;
}

.loader-circle {
  animation: spin 2s cubic-bezier(0.4, 0, 0.2, 1) 1; /* تدور مرة واحدة بس */
}