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

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

:root {
  --bg:           #ffffff;
  --surface:      #f5f5f5;
  --surface-2:    #ebebeb;
  --text:         #1a1a1a;
  --text-muted:   #737373;
  --border:       rgba(0,0,0,0.10);
  --accent:       #6366f1;
  --accent-light: rgba(99,102,241,0.12);
  --sidebar-w:    240px;
  --radius:       6px;
  --trans:        0.15s ease;
  --font-ui:      'Inter', system-ui, sans-serif;
  --font-editor:  var(--font-ui);
}

[data-theme="dark"] {
  --bg:           #1a1a1a;
  --surface:      #242424;
  --surface-2:    #2e2e2e;
  --text:         #f0f0f0;
  --text-muted:   #8a8a8a;
  --border:       rgba(255,255,255,0.10);
  --accent-light: rgba(99,102,241,0.18);
}

[data-font="georgia"]   { --font-editor: 'Georgia', serif; }
[data-font="jetbrains"] { --font-editor: 'JetBrains Mono', monospace; }

html, body { min-height: 100%; overflow: hidden; }

body {
  font-family: var(--font-ui);
  background: var(--bg);
  background-image: radial-gradient(circle at top left, rgba(99,102,241,0.14), transparent 26%),
                    radial-gradient(circle at bottom right, rgba(79,70,229,0.08), transparent 20%);
  color: var(--text);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
}

[data-theme="dark"] body {
  background: var(--bg);
  background-image: radial-gradient(circle at top left, rgba(99,102,241,0.08), transparent 26%),
                    radial-gradient(circle at bottom right, rgba(79,70,229,0.06), transparent 20%);
}

.hidden { display: none !important; }

#auth-view {
  width: 100%;
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  background: var(--bg);
  background-image: radial-gradient(circle at top left, rgba(99,102,241,0.12), transparent 35%),
                    radial-gradient(circle at bottom right, rgba(79,70,229,0.08), transparent 24%);
}

[data-theme="dark"] #auth-view {
  background: var(--bg);
  background-image: radial-gradient(circle at top left, rgba(99,102,241,0.08), transparent 35%),
                    radial-gradient(circle at bottom right, rgba(79,70,229,0.05), transparent 24%);
}

.auth-box {
  width: min(100%, 380px);
  padding: 36px 34px;
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: calc(var(--radius) * 1.4);
  box-shadow: 0 24px 70px rgba(15, 23, 42, 0.09);
  backdrop-filter: blur(10px);
}

[data-theme="dark"] .auth-box {
  box-shadow: 0 24px 70px rgba(0, 0, 0, 0.4);
}

.auth-logo {
  font-size: 26px;
  font-weight: 700;
  letter-spacing: -0.5px;
  margin-bottom: 6px;
  color: var(--accent);
}

.auth-tagline {
  font-size: 13px;
  color: var(--text-muted);
  margin-bottom: 24px;
}

.auth-tabs {
  display: flex;
  border-bottom: 1px solid var(--border);
  margin-bottom: 22px;
}

.auth-tab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  padding: 12px 14px;
  font-size: 13px;
  font-weight: 700;
  color: var(--text-muted);
  cursor: pointer;
  margin-bottom: -1px;
  transition: color var(--trans), border-color var(--trans);
  flex: 1;
  text-align: center;
}

.auth-tab.active { color: var(--accent); border-bottom-color: var(--accent); }

.form-group { margin-bottom: 16px; }

.form-label {
  display: block;
  font-size: 11px;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 8px;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.form-input {
  width: 100%;
  padding: 12px 14px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: var(--bg);
  color: var(--text);
  font-size: 14px;
  font-family: inherit;
  outline: none;
  transition: border-color var(--trans), background var(--trans);
}

.form-input:focus { border-color: var(--accent); background: var(--surface); }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 12px 16px;
  border: none;
  border-radius: 10px;
  font-size: 14px;
  font-weight: 700;
  font-family: inherit;
  cursor: pointer;
  transition: opacity var(--trans), transform var(--trans), background var(--trans);
}

.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn:disabled { opacity: 0.55; cursor: not-allowed; }

.btn-primary {
  background: linear-gradient(135deg, #6366f1 0%, #818cf8 100%);
  color: #fff;
  box-shadow: 0 12px 28px rgba(99,102,241,0.18);
}
.btn-primary:hover:not(:disabled) {
  opacity: 0.96;
  transform: translateY(-1px) scale(1.002);
}

.btn-ghost { background: transparent; color: var(--text); border: 1px solid var(--border); }
.btn-ghost:hover { background: var(--surface); }

.btn-danger { background: #ef4444; color: #fff; }
.btn-danger:hover:not(:disabled) { opacity: 0.92; }

.btn-sm { padding: 8px 12px; font-size: 12px; }
.btn-full { width: 100%; }

.btn-icon {
  padding: 5px;
  border-radius: 4px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  transition: background var(--trans), color var(--trans);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 14px;
}

.btn-icon:hover { background: var(--surface-2); color: var(--text); }

.auth-error {
  background: rgba(239,68,68,0.08);
  border: 1px solid rgba(239,68,68,0.25);
  color: #ef4444;
  border-radius: var(--radius);
  padding: 10px 14px;
  font-size: 13px;
  margin-bottom: 16px;
}

/* ── App shell ── */
#app-view { width: 100%; height: 100%; display: flex; background: var(--bg); }

.sidebar-overlay {
  display: none;
  position: fixed; inset: 0;
  background: rgba(15,23,42,0.25);
  z-index: 499;
}

/* ── Toast ── */
#toast-container {
  position: fixed; bottom: 24px; right: 24px;
  z-index: 9999; display: flex; flex-direction: column; gap: 8px;
}
.toast {
  padding: 10px 16px; border-radius: var(--radius);
  font-size: 13px; font-weight: 500;
  background: var(--text); color: var(--bg);
  box-shadow: 0 4px 16px rgba(0,0,0,0.15);
  animation: toastIn 0.15s ease; max-width: 320px;
}
.toast.error   { background: #ef4444; color: #fff; }
.toast.success { background: #22c55e; color: #fff; }
@keyframes toastIn { from { transform: translateY(6px); opacity: 0; } to { transform: translateY(0); opacity: 1; } }

/* ── Modal ── */
.modal-overlay {
  position: fixed; inset: 0;
  background: rgba(0,0,0,0.35);
  z-index: 1000; display: flex;
  align-items: center; justify-content: center;
  animation: fadeIn 0.1s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }
.modal {
  background: var(--bg); border: 1px solid rgba(99,102,241,0.14);
  border-radius: calc(var(--radius) * 1.5); padding: 26px;
  min-width: 320px; max-width: 520px; width: min(520px, 92%);
  box-shadow: 0 18px 40px rgba(15,23,42,0.14);
}
.modal-title { font-size: 17px; font-weight: 700; margin-bottom: 18px; }
.modal-body { display: flex; flex-direction: column; gap: 20px; }
.modal-footer { display: flex; justify-content: flex-end; gap: 10px; margin-top: 22px; }

.settings-body { display: flex; flex-direction: column; gap: 24px; }
.settings-section { display: flex; flex-direction: column; gap: 14px; }
.settings-title { font-size: 12px; font-weight: 700; text-transform: uppercase; letter-spacing: 0.18em; color: var(--text-muted); }
.settings-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(130px, 1fr)); gap: 10px; }
.settings-option {
  position: relative;
  display: flex; align-items: center; gap: 12px;
  min-height: 72px;
  padding: 14px 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface);
  cursor: pointer;
  transition: transform var(--trans), border-color var(--trans), background var(--trans), box-shadow var(--trans);
}
.settings-option:hover { background: rgba(99,102,241,0.08); }
.settings-option.selected {
  background: rgba(99,102,241,0.14);
  border-color: var(--accent);
  box-shadow: 0 10px 24px rgba(99,102,241,0.08);
}
.settings-option input { position: absolute; opacity: 0; pointer-events: none; }
.settings-option-label { font-size: 14px; font-weight: 700; }
.settings-option-subtitle { font-size: 12px; color: var(--text-muted); margin-top: 4px; }

.accent-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 10px; }
.accent-swatch {
  width: 100%; aspect-ratio: 1;
  border-radius: 14px;
  border: 2px solid transparent;
  box-shadow: 0 8px 18px rgba(15,23,42,0.08);
  cursor: pointer;
  transition: transform var(--trans), border-color var(--trans);
}
.accent-swatch.selected {
  border-color: var(--accent);
  transform: translateY(-1px);
}

.settings-row { display: flex; flex-direction: column; gap: 10px; }
.settings-row input[type="color"] {
  width: 100%;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 0;
  background: transparent;
  cursor: pointer;
}
.settings-hint { font-size: 12px; color: var(--text-muted); }

/* ── Context menu ── */
.ctx-menu {
  position: fixed; z-index: 2000;
  background: var(--bg); border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: 0 4px 16px rgba(0,0,0,0.12);
  min-width: 160px; padding: 4px;
  animation: fadeIn 0.1s ease;
}
.ctx-item {
  display: flex; align-items: center; gap: 8px;
  padding: 7px 10px; font-size: 13px; border-radius: 4px;
  cursor: pointer; color: var(--text);
  transition: background var(--trans);
}
.ctx-item:hover { background: var(--surface); }
.ctx-item.danger { color: #ef4444; }
.ctx-sep { height: 1px; background: var(--border); margin: 4px 0; }

/* ── Empty state ── */
.empty-state {
  display: flex; flex-direction: column;
  align-items: center; justify-content: center;
  height: 100%; color: var(--text-muted);
  font-size: 14px; gap: 16px; user-select: none;
  background: var(--surface);
  border: 1px dashed var(--border);
  border-radius: 20px;
  box-shadow: 0 14px 40px rgba(15,23,42,0.06);
  padding: 42px 28px;
  margin: 24px;
}

[data-theme="dark"] .empty-state {
  box-shadow: 0 14px 40px rgba(0,0,0,0.3);
}
.empty-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  background: rgba(99,102,241,0.18);
}

/* ── Mobile ── */
.topbar {
  display: none; align-items: center; gap: 12px;
  padding: 0 16px; height: 48px; flex-shrink: 0;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  backdrop-filter: blur(14px);
}
.topbar-title { font-size: 14px; font-weight: 600; flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.hamburger {
  background: none; border: none; cursor: pointer;
  color: var(--text); padding: 4px;
  display: flex; flex-direction: column; gap: 4px;
}
.hamburger span { display: block; width: 18px; height: 2px; background: currentColor; border-radius: 2px; }

@media (max-width: 768px) {
  .topbar { display: flex; }
  #app-view { flex-direction: column; }
  .sidebar {
    position: fixed !important;
    left: 0; top: 0; bottom: 0; z-index: 500;
    transform: translateX(-100%);
    transition: transform var(--trans);
    box-shadow: 4px 0 20px rgba(0,0,0,0.12);
  }
  .sidebar.open { transform: translateX(0); }
  .sidebar-overlay.visible { display: block; }
  .main-area { flex: 1; min-height: 0; display: flex; flex-direction: column; }
}