@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

:root {
  --font-family: 'Inter', sans-serif;
  --sidebar-width: 250px;
  --glass-blur: 12px;
}

body.theme-midnight {
  --bg-color: #0d0d0d;
  --surface-color: #1a1a1a;
  --text-color: #f5f5f5;
  --text-muted: #a0a0a0;
  --primary-color: #3b82f6;
  --secondary-color: #8b5cf6;
  --accent-color: #10b981;
  --glass-bg: rgba(255, 255, 255, 0.05);
  --glass-border: rgba(255, 255, 255, 0.1);
}

body.theme-slate {
  --bg-color: #1e293b;
  --surface-color: #0f172a;
  --text-color: #f8fafc;
  --text-muted: #94a3b8;
  --primary-color: #38bdf8;
  --secondary-color: #0ea5e9;
  --accent-color: #7dd3fc;
  --glass-bg: rgba(255, 255, 255, 0.03);
  --glass-border: rgba(255, 255, 255, 0.08);
}

body.theme-cloud {
  --bg-color: #f8fafc;
  --surface-color: #ffffff;
  --text-color: #0f172a;
  --text-muted: #64748b;
  --primary-color: #0ea5e9;
  --secondary-color: #0284c7;
  --accent-color: #22c55e;
  --glass-bg: rgba(255, 255, 255, 0.7);
  --glass-border: rgba(0, 0, 0, 0.05);
}

body.theme-rose {
  --bg-color: #fff1f2;
  --surface-color: #ffffff;
  --text-color: #881337;
  --text-muted: #fb7185;
  --primary-color: #e11d48;
  --secondary-color: #be123c;
  --accent-color: #f43f5e;
  --glass-bg: rgba(255, 255, 255, 0.8);
  --glass-border: rgba(225, 29, 72, 0.1);
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: var(--font-family);
  background-color: var(--bg-color);
  color: var(--text-color);
  overflow: hidden;
  height: 100vh;
  width: 100vw;
}

#app {
  display: flex;
  height: 100vh;
  width: 100vw;
}

/* Layout Components */
.sidebar {
  width: var(--sidebar-width);
  height: 100%;
  background: var(--surface-color);
  border-right: 1px solid var(--glass-border);
  display: flex;
  flex-direction: column;
  padding: 2rem 1rem;
}

.main-content {
  flex: 1;
  height: 100%;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.topbar {
  height: 70px;
  padding: 0 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  border-bottom: 1px solid var(--glass-border);
  position: relative;
  z-index: 10;
}

.topbar-left {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.content-area {
  flex: 1;
  padding: 2rem;
  overflow-y: auto;
}

/* Glassmorphism Classes */
.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(var(--glass-blur));
  border: 1px solid var(--glass-border);
  border-radius: 1rem;
  padding: 1.5rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.glass-card:hover {
  box-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
}

/* Typography */
h1, h2, h3 {
  font-weight: 600;
  margin-bottom: 1rem;
}

p {
  color: var(--text-muted);
  line-height: 1.6;
}

/* Interactive Elements */
.btn {
  padding: 0.75rem 1.5rem;
  border-radius: 0.5rem;
  border: none;
  cursor: pointer;
  font-family: inherit;
  font-weight: 500;
  transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.btn-primary {
  background: linear-gradient(135deg, var(--primary-color), var(--secondary-color));
  color: white;
  box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
}

.btn-primary:hover {
  filter: brightness(1.2);
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(59, 130, 246, 0.4);
}

.nav-item {
  padding: 0.75rem 1rem;
  border-radius: 0.5rem;
  cursor: pointer;
  margin-bottom: 0.5rem;
  transition: all 0.2s ease;
  color: var(--text-muted);
  display: flex;
  align-items: center;
  gap: 10px;
}

.nav-item:hover {
  background: var(--glass-bg);
  color: var(--text-color);
  padding-left: 1.25rem;
}

.nav-item.active {
  background: var(--glass-bg);
  color: var(--text-color);
  border-left: 3px solid var(--primary-color);
}

/* Custom Scrollbar */
::-webkit-scrollbar {
  width: 8px;
}

::-webkit-scrollbar-track {
  background: transparent;
}

::-webkit-scrollbar-thumb {
  background: var(--glass-border);
  border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
  background: var(--text-muted);
}

/* Animations */
@keyframes fadeIn {
  from { opacity: 0; transform: translateY(10px); }
  to { opacity: 1; transform: translateY(0); }
}

.content-area > * {
  animation: fadeIn 0.4s ease-out forwards;
}

.event-pill {
  transition: transform 0.2s ease;
}

.event-pill:hover {
  transform: scale(1.05);
}

/* ── Named Lists ──────────────────────────────────────────────────────────── */
.lists-shell {
  height: calc(100vh - 70px - 4rem); /* full panel minus topbar and padding */
}

.item-row:hover {
  background: rgba(255, 255, 255, 0.07) !important;
}

.item-row:hover .del-item-btn {
  color: #ef4444 !important;
}

.item-row:hover .edit-item-btn {
  color: var(--text-muted) !important;
}

.edit-item-btn:hover {
  color: var(--accent-color) !important;
}

.item-row.drag-over {
  background: rgba(var(--primary-color-rgb, 59,130,246), 0.18) !important;
  border: 1px dashed var(--accent-color);
  border-radius: 8px;
}

.group-entry:hover {
  filter: brightness(1.15);
}

/* ── Notes ───────────────────────────────────────────────────────────────── */
.note-card:hover .note-actions {
  opacity: 1 !important;
}

.note-card:hover {
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

/* ── Mobile Responsive ─────────────────────────────────────────────────────── */
.hamburger {
  display: none;
  flex-direction: column;
  justify-content: space-around;
  width: 24px;
  height: 24px;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
  z-index: 1001;
}

.hamburger span {
  width: 24px;
  height: 2px;
  background: var(--text-color);
  border-radius: 10px;
  transition: all 0.3s linear;
  position: relative;
  transform-origin: 1px;
}

.sidebar-overlay {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 999;
  opacity: 0;
  transition: opacity 0.3s ease;
}

@media (max-width: 768px) {
  .hamburger {
    display: flex;
  }

  .sidebar {
    position: fixed;
    left: 0;
    top: 0;
    bottom: 0;
    z-index: 1000;
    transform: translateX(-100%);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    box-shadow: 20px 0 50px rgba(0,0,0,0.3);
  }

  body.sidebar-open .sidebar {
    transform: translateX(0);
  }

  body.sidebar-open .sidebar-overlay {
    display: block;
    opacity: 1;
  }

  .topbar {
    padding: 0 1rem;
  }

  .content-area {
    padding: 1rem;
  }

  .main-view-header {
    flex-direction: column;
    align-items: flex-start !important;
    gap: 1rem;
  }

  /* Hamburger Animation */
  body.sidebar-open .hamburger span:nth-child(1) {
    transform: rotate(45deg);
  }
  body.sidebar-open .hamburger span:nth-child(2) {
    opacity: 0;
    transform: translateX(20px);
  }
  body.sidebar-open .hamburger span:nth-child(3) {
    transform: rotate(-45deg);
  }
}