/*
 * IWonnaP — Layout
 * Hi-tech: mesh background, glass surfaces, mobile bottom-nav, FAB.
 */

* { box-sizing: border-box; }

html, body {
  background: var(--page-bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  line-height: 1.5;
  margin: 0;
  min-height: 100dvh;
  padding: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body::before {
  background: var(--page-bg-mesh);
  content: "";
  inset: 0;
  pointer-events: none;
  position: fixed;
  z-index: 0;
}

/* Anything below body needs stacking context */
.app-root,
.layout-grid,
header,
main,
footer { position: relative; z-index: 1; }

/* Selection */
::selection {
  background: color-mix(in srgb, var(--accent) 35%, transparent);
  color: var(--text-strong);
}

/* Scrollbar polish (WebKit) */
::-webkit-scrollbar { height: 10px; width: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: var(--line-strong);
  border-radius: var(--r-full);
  border: 2px solid transparent;
  background-clip: padding-box;
}
::-webkit-scrollbar-thumb:hover { background-color: var(--muted); }

a { color: var(--accent-strong); text-decoration: none; }
a:hover { color: var(--accent); }

h1, h2, h3, h4 {
  color: var(--text-strong);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 var(--sp-3);
}
h1 { font-size: var(--text-2xl); letter-spacing: -0.02em; }
h2 { font-size: var(--text-xl); }
h3 { font-size: var(--text-lg); }

p { margin: 0 0 var(--sp-3); }

/* Mono-friendly numerics */
.mono, time, .num, .task-date { font-family: var(--font-mono); font-feature-settings: "tnum"; }

/* ═══════════════════════════════════════════════════════
   HEADER (glass, sticky)
   ══════════════════════════════════════════════════════ */

.app-header,
.header {
  align-items: center;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: var(--surface-overlay);
  border-bottom: 1px solid var(--line);
  display: flex;
  gap: var(--sp-3);
  height: var(--header-h);
  justify-content: space-between;
  padding: 0 var(--sp-4);
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 50;
}

.app-header .brand {
  align-items: center;
  color: var(--text-strong);
  display: inline-flex;
  font-size: var(--text-md);
  font-weight: 700;
  gap: var(--sp-2);
  letter-spacing: -0.02em;
}
.app-header .brand .logo-dot {
  background: var(--grad-accent);
  border-radius: 50%;
  box-shadow: var(--accent-glow);
  height: 10px;
  width: 10px;
}

.app-header nav {
  align-items: center;
  display: flex;
  gap: var(--sp-1);
}
.app-header nav a {
  align-items: center;
  border-radius: var(--r-sm);
  color: var(--muted);
  display: inline-flex;
  font-size: var(--text-sm);
  font-weight: 500;
  height: 36px;
  padding: 0 var(--sp-3);
  transition: background var(--t-fast), color var(--t-fast);
}
.app-header nav a:hover { background: var(--surface-elev); color: var(--text); }
.app-header nav a.active {
  background: var(--surface-elev);
  color: var(--text-strong);
  position: relative;
}
.app-header nav a.active::after {
  background: var(--grad-accent);
  border-radius: var(--r-full);
  bottom: -1px;
  content: "";
  height: 2px;
  left: 12px;
  position: absolute;
  right: 12px;
}

.app-header .user-actions {
  align-items: center;
  display: flex;
  gap: var(--sp-2);
}

/* ═══════════════════════════════════════════════════════
   MAIN LAYOUT (centered container)
   ══════════════════════════════════════════════════════ */

/* Legacy 2-col layout for any <main> WITHOUT class="main" (kept for backwards compat).
   The current app shell uses <main class="main"> — see the dedicated rule below
   around line 467 which defines the 3-col left/main/right grid. The :not(.main)
   isolation is critical: previously the unscoped `main > *` selector forced every
   child into grid-column 2, which collapsed left/main/right into a vertical stack. */
.layout-grid,
main:not(.main) {
  display: grid;
  gap: var(--sp-4);
  grid-template-columns: 240px minmax(0, 1fr);
  margin: 0 auto;
  max-width: var(--container-w);
  padding: var(--sp-5) var(--sp-4) calc(var(--mobile-nav-h) + var(--sp-5));
  width: 100%;
}

main:not(.main) > * { grid-column: 2; min-width: 0; }
main:not(.main) > .sidebar { grid-column: 1; }

/* ═══════════════════════════════════════════════════════
   SIDEBAR
   ══════════════════════════════════════════════════════ */

.sidebar {
  align-self: start;
  display: grid;
  gap: var(--sp-2);
  position: sticky;
  top: calc(var(--header-h) + var(--sp-4));
}
.sidebar .section-title {
  color: var(--muted);
  font-size: var(--text-xs);
  font-weight: 600;
  letter-spacing: .08em;
  padding: 0 var(--sp-2);
  text-transform: uppercase;
}
.sidebar a, .sidebar .nav-group-toggle {
  align-items: center;
  background: transparent;
  border: none;
  border-radius: var(--r-sm);
  color: var(--muted);
  cursor: pointer;
  display: flex;
  font: inherit;
  font-size: var(--text-sm);
  gap: var(--sp-2);
  min-height: 36px;
  padding: var(--sp-2) var(--sp-3);
  text-align: left;
  text-decoration: none;
  transition: background var(--t-fast), color var(--t-fast);
  width: 100%;
}
.sidebar a:hover, .sidebar .nav-group-toggle:hover {
  background: var(--surface-elev);
  color: var(--text);
}
.sidebar a.active {
  background: var(--accent-muted);
  box-shadow: inset 2px 0 0 var(--accent);
  color: var(--text-strong);
}

/* ═══════════════════════════════════════════════════════
   MOBILE BOTTOM NAV
   ══════════════════════════════════════════════════════ */

.mobile-nav {
  align-items: stretch;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: var(--surface-overlay);
  border-top: 1px solid var(--line);
  bottom: 0;
  display: none;
  height: var(--mobile-nav-h);
  justify-content: space-around;
  left: 0;
  padding: 0 var(--sp-2);
  padding-bottom: env(safe-area-inset-bottom);
  position: fixed;
  right: 0;
  z-index: 40;
}
.mobile-nav a {
  align-items: center;
  color: var(--muted);
  display: inline-flex;
  flex: 1;
  flex-direction: column;
  font-size: 11px;
  font-weight: 500;
  gap: 2px;
  justify-content: center;
  min-width: 0;
  padding: var(--sp-1);
  position: relative;
  text-decoration: none;
  transition: color var(--t-fast);
}
.mobile-nav a .icon {
  font-size: 20px;
  line-height: 1;
}
.mobile-nav a.active {
  color: var(--accent-strong);
}
.mobile-nav a.active::before {
  background: var(--grad-accent);
  border-radius: var(--r-full);
  content: "";
  height: 3px;
  left: 30%;
  position: absolute;
  right: 30%;
  top: 0;
}

/* ═══════════════════════════════════════════════════════
   FAB (Floating Action Button)
   ══════════════════════════════════════════════════════ */

.fab {
  align-items: center;
  background: var(--grad-accent);
  border: none;
  border-radius: var(--r-full);
  bottom: calc(var(--mobile-nav-h) + var(--sp-4));
  box-shadow: var(--shadow-lg), 0 0 24px rgba(40, 200, 210, .3);
  color: #fff;
  cursor: pointer;
  display: none;
  font-size: 24px;
  height: 56px;
  justify-content: center;
  position: fixed;
  right: var(--sp-4);
  transition: transform var(--t-spring), box-shadow var(--t-base);
  width: 56px;
  z-index: 45;
}
.fab:hover, .fab:active {
  transform: scale(1.05) rotate(8deg);
  box-shadow: var(--shadow-lg), 0 0 32px rgba(40, 200, 210, .45);
}

/* ═══════════════════════════════════════════════════════
   FOOTER
   ══════════════════════════════════════════════════════ */

.app-footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: var(--text-xs);
  margin-top: var(--sp-6);
  padding: var(--sp-4);
  text-align: center;
}

/* ═══════════════════════════════════════════════════════
   RESPONSIVE
   ══════════════════════════════════════════════════════ */

@media (max-width: 900px) {
  .layout-grid, main {
    grid-template-columns: 1fr;
    padding: var(--sp-4) var(--sp-3) calc(var(--mobile-nav-h) + var(--sp-4));
  }
  main > .sidebar { display: none; }
  main > * { grid-column: 1; }

  .mobile-nav { display: flex; }
  .fab { display: inline-flex; }

  .app-header nav { display: none; }
  .app-header { padding: 0 var(--sp-3); }
}

@media (max-width: 480px) {
  h1 { font-size: var(--text-xl); }
  h2 { font-size: var(--text-lg); }
}

/* ═══════════════════════════════════════════════════════
   LEGACY ALIASES — для существующей структуры base.html
   .header → .app-header, .main → main grid, и т.д.
   ══════════════════════════════════════════════════════ */

header.header {
  align-items: center;
  backdrop-filter: blur(16px) saturate(140%);
  -webkit-backdrop-filter: blur(16px) saturate(140%);
  background: var(--surface-overlay);
  border-bottom: 1px solid var(--line);
  display: flex;
  flex-wrap: wrap;
  gap: var(--sp-3);
  justify-content: space-between;
  min-height: var(--header-h);
  padding: var(--sp-2) var(--sp-4);
  position: sticky;
  top: 0;
  width: 100%;
  z-index: 50;
}

.user-profile-navbar {
  align-items: center;
  border-radius: var(--r-md);
  color: var(--text);
  display: inline-flex;
  gap: var(--sp-2);
  padding: 4px var(--sp-2);
  text-decoration: none;
  transition: background var(--t-fast);
}
.user-profile-navbar:hover { background: var(--surface-elev); }
.user-round-photo {
  border: 1.5px solid var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 2px color-mix(in srgb, var(--accent) 20%, transparent);
  height: 32px;
  object-fit: cover;
  width: 32px;
}
.username {
  color: var(--text-strong);
  font-size: var(--text-sm);
  font-weight: 600;
}

.auth-link {
  align-items: center;
  background: var(--surface-elev);
  border: 1px solid var(--line);
  border-radius: var(--r-md);
  color: var(--text);
  display: inline-flex;
  font-size: var(--text-sm);
  font-weight: 500;
  gap: var(--sp-1);
  padding: 6px var(--sp-3);
  text-decoration: none;
  transition: all var(--t-fast);
}
.auth-link:hover { background: var(--surface-soft); border-color: var(--accent); color: var(--accent-strong); }
.auth-link img { display: none; }

.header-actions {
  align-items: center;
  display: inline-flex;
  gap: var(--sp-2);
}

.center-buttons.main-nav {
  align-items: center;
  display: flex;
  flex: 1;
  flex-wrap: wrap;
  gap: var(--sp-1);
  justify-content: center;
}

.nav-group { position: relative; }
.nav-group-toggle {
  align-items: center;
  background: transparent;
  border: 1px solid transparent;
  border-radius: var(--r-sm);
  color: var(--muted);
  cursor: pointer;
  display: inline-flex;
  font-size: var(--text-sm);
  font-weight: 500;
  gap: var(--sp-1);
  list-style: none;
  padding: 6px var(--sp-3);
  transition: all var(--t-fast);
  user-select: none;
}
.nav-group-toggle::-webkit-details-marker { display: none; }
.nav-group-toggle::after { content: "▾"; font-size: 9px; opacity: .6; }
.nav-group-toggle:hover { background: var(--surface-elev); color: var(--text); }
.nav-group[open] .nav-group-toggle { background: var(--surface-elev); color: var(--text-strong); }

.nav-group-items {
  animation: iwp-fade-down var(--t-fast) both;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  list-style: none;
  margin: 0;
  min-width: 200px;
  padding: var(--sp-1);
  position: absolute;
  right: 0;
  top: calc(100% + 6px);
  z-index: 60;
}
.nav-group-items li { margin: 0; }
.nav-group-items a {
  border-radius: var(--r-sm);
  color: var(--text);
  display: block;
  font-size: var(--text-sm);
  padding: var(--sp-2) var(--sp-3);
  text-decoration: none;
  transition: background var(--t-fast), color var(--t-fast);
}
.nav-group-items a:hover {
  background: var(--accent-muted);
  color: var(--accent-strong);
}

main.main {
  display: grid;
  gap: var(--sp-4);
  /* Constant 3-column grid. Right column is always 240px even when empty —
     avoids :has() which is unsupported in older browsers and lets users with
     show_events=show_marks=False still see a stable layout. */
  grid-template-columns: 240px minmax(0, 1fr) 240px;
  margin: 0 auto;
  max-width: var(--container-w);
  padding: var(--sp-5) var(--sp-4) calc(var(--mobile-nav-h) + var(--sp-5));
  position: relative;
  width: 100%;
  z-index: 1;
}

.left-sidebar  { align-self: start; grid-column: 1; min-width: 0; position: sticky; top: calc(var(--header-h) + var(--sp-3)); }
.main-block    { grid-column: 2; min-width: 0; }
.right-sidebar { align-self: start; grid-column: 3; min-width: 0; }

.side-quick-nav {
  display: grid;
  gap: 2px;
}
.side-quick-nav a {
  align-items: center;
  border-radius: var(--r-sm);
  color: var(--muted);
  display: flex;
  font-size: var(--text-sm);
  min-height: 36px;
  padding: 6px var(--sp-3);
  text-decoration: none;
  transition: background var(--t-fast), color var(--t-fast);
}
.side-quick-nav a:hover { background: var(--surface-elev); color: var(--text); }
.side-quick-nav a.active,
.side-quick-nav a[aria-current="page"] {
  background: var(--accent-muted);
  box-shadow: inset 2px 0 0 var(--accent);
  color: var(--text-strong);
}

footer.footer {
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: var(--text-xs);
  margin-top: var(--sp-6);
  padding: var(--sp-4);
  text-align: center;
}

/* ─── Notifications ─────────────────────────── */

#notification-container {
  display: grid;
  gap: var(--sp-2);
  left: 50%;
  max-width: 480px;
  padding: var(--sp-3);
  position: fixed;
  top: calc(var(--header-h) + var(--sp-2));
  transform: translateX(-50%);
  width: 100%;
  z-index: 100;
}
.notification-banner {
  animation: iwp-fade-down var(--t-base) both;
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--line-strong);
  border-left: 3px solid var(--accent);
  border-radius: var(--r-md);
  box-shadow: var(--shadow-lg);
  display: flex;
  gap: var(--sp-2);
  padding: var(--sp-3) var(--sp-4);
}
.notification-banner .close-btn {
  background: transparent;
  border: none;
  color: var(--muted);
  cursor: pointer;
  font-size: 1.2rem;
  line-height: 1;
  margin-left: auto;
  padding: 0;
}
.notification_error   { border-left-color: var(--danger); }
.notification_success { border-left-color: var(--success); }
.notification_warning { border-left-color: var(--warning); }

/* ─── Responsive for legacy structure ───────── */

/* Tablet: drop the right sidebar, keep left + main */
@media (max-width: 1099px) {
  main.main {
    grid-template-columns: 220px minmax(0, 1fr);
  }
  .right-sidebar { display: none; }
}

/* Mobile: single column, both sidebars hidden, mobile-nav active */
@media (max-width: 900px) {
  main.main {
    grid-template-columns: 1fr;
    padding: var(--sp-4) var(--sp-3) calc(var(--mobile-nav-h) + var(--sp-4));
  }
  .left-sidebar, .right-sidebar { display: none; }

  header.header { padding: var(--sp-2) var(--sp-3); }
  .center-buttons.main-nav { display: none; }
  .username { display: none; }
}