/* ==========================================================================
   App shell: sidebar + top bar + content; login screen.
   ========================================================================== */

.shell { display: grid; grid-template-columns: var(--sidebar-width) 1fr; min-height: 100vh; }

.sidebar { position: sticky; top: 0; height: 100vh; display: flex; flex-direction: column; gap: var(--space-4);
  padding: var(--space-4) var(--space-3); background: var(--surface); border-right: var(--border-width) solid var(--border); }
.brand { display: flex; align-items: center; gap: var(--space-3); padding: var(--space-1) var(--space-2); min-height: 36px; }
.brand__logo { width: 30px; height: 30px; border-radius: var(--radius-sm); object-fit: cover; flex: none; }
.brand__mark { width: 30px; height: 30px; border-radius: var(--radius-sm); flex: none; display: grid; place-items: center;
  background: var(--accent); color: var(--on-accent); font-weight: var(--weight-semibold); }
.brand__name { font-weight: var(--weight-semibold); font-size: var(--text-md); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.nav { display: grid; gap: 2px; overflow-y: auto; }
.nav__label { padding: var(--space-3) var(--space-3) var(--space-1); font-size: var(--text-xs); color: var(--text-subtle);
  text-transform: uppercase; letter-spacing: 0.05em; }
.nav__link { display: flex; align-items: center; gap: var(--space-3); height: 34px; padding: 0 var(--space-3);
  border-radius: var(--radius); color: var(--text-muted); font-weight: var(--weight-medium); text-decoration: none; }
.nav__link:hover { background: var(--surface-hover); color: var(--text); text-decoration: none; }
.nav__link.is-active { background: var(--accent-soft); color: var(--accent); }
.nav__link svg { width: 18px; height: 18px; flex: none; }
.sidebar__footer { margin-top: auto; display: grid; gap: var(--space-2); padding-top: var(--space-3); border-top: var(--border-width) solid var(--border); }
.account { display: flex; align-items: center; gap: var(--space-2); padding: var(--space-1) var(--space-2); }
.account__avatar { width: 28px; height: 28px; border-radius: 50%; display: grid; place-items: center; flex: none;
  background: var(--surface-2); font-size: var(--text-xs); font-weight: var(--weight-semibold); text-transform: uppercase; }
.account__name { font-size: var(--text-sm); font-weight: var(--weight-medium); overflow: hidden; text-overflow: ellipsis; }
.account__role { font-size: var(--text-xs); color: var(--text-subtle); text-transform: capitalize; }

.main { min-width: 0; display: flex; flex-direction: column; }
.topbar { position: sticky; top: 0; z-index: 10; height: var(--topbar-height); display: flex; align-items: center; gap: var(--space-3);
  padding: 0 var(--space-6); background: color-mix(in oklab, var(--bg) 88%, transparent); backdrop-filter: blur(8px);
  border-bottom: var(--border-width) solid var(--border); }
.topbar__title { font-size: var(--text-lg); }
.topbar__menu { display: none; }
.topbar__actions { margin-left: auto; display: flex; gap: var(--space-2); }
.content { width: 100%; max-width: var(--content-max); margin: 0 auto; padding: var(--space-6); display: grid; gap: var(--space-5); align-content: start; }
.content > *, .stack > *, .grid-2 > * { min-width: 0; }
.grid-2 { display: grid; gap: var(--space-5); grid-template-columns: repeat(auto-fit, minmax(320px, 1fr)); align-items: start; }

/* Mobile: sidebar becomes an off-canvas panel */
@media (max-width: 860px) {
  .shell { grid-template-columns: 1fr; }
  .sidebar { position: fixed; z-index: 50; left: 0; width: min(280px, 86vw); transform: translateX(-100%);
    transition: transform var(--dur) var(--ease); box-shadow: var(--shadow-lg); }
  .shell.is-nav-open .sidebar { transform: none; }
  .scrim { position: fixed; inset: 0; z-index: 40; background: var(--overlay); }
  .topbar { padding: 0 var(--space-4); }
  .topbar__menu { display: inline-flex; }
  .content { padding: var(--space-4); }
  .dl { grid-template-columns: 1fr; gap: 2px var(--space-4); }
  .dl dd { margin-bottom: var(--space-2); }
}

/* Login */
/* Sign-in pages (dashboard login, /join): glowing background, glass card, headline panel on wide screens */
.login { position: relative; min-height: 100vh; min-height: 100dvh; display: grid; place-items: center; gap: var(--space-8);
  padding: var(--space-6) var(--space-4); overflow: hidden; isolation: isolate;
  background: radial-gradient(1200px 600px at 10% -10%, color-mix(in oklab, var(--accent) 16%, transparent), transparent 60%),
    radial-gradient(900px 500px at 110% 110%, color-mix(in oklab, #6d5bd0 14%, transparent), transparent 60%), var(--bg); }
.login::before { content: ""; position: absolute; inset: 0; z-index: -1; opacity: 0.35; pointer-events: none;
  background-image: linear-gradient(color-mix(in oklab, var(--text) 6%, transparent) 1px, transparent 1px),
    linear-gradient(90deg, color-mix(in oklab, var(--text) 6%, transparent) 1px, transparent 1px);
  background-size: 44px 44px; mask-image: radial-gradient(ellipse at center, #000 30%, transparent 75%); }
.login__glow { position: absolute; inset: 0; z-index: -1; pointer-events: none; filter: blur(70px); }
.login__glow span { position: absolute; border-radius: 50%; opacity: 0.55; animation: login-drift 22s ease-in-out infinite alternate; }
.login__glow span:nth-child(1) { width: 42vmax; height: 42vmax; left: -12vmax; top: -14vmax; background: color-mix(in oklab, var(--accent) 70%, transparent); }
.login__glow span:nth-child(2) { width: 36vmax; height: 36vmax; right: -14vmax; bottom: -12vmax; background: #6d5bd0; opacity: 0.35; animation-duration: 28s; }
.login__glow span:nth-child(3) { width: 24vmax; height: 24vmax; left: 45%; top: 55%; background: #1f9bb8; opacity: 0.25; animation-duration: 34s; }
@keyframes login-drift { to { transform: translate(6vw, 5vh) scale(1.12); } }
@media (prefers-reduced-motion: reduce) { .login__glow span { animation: none; } }
.login__side { display: grid; gap: var(--space-4); justify-items: center; width: min(420px, 100%); }
.login__card { width: 100%; padding: var(--space-8) var(--space-6); display: grid; gap: var(--space-5); border-radius: calc(var(--radius-lg) + 6px);
  background: color-mix(in oklab, var(--surface) 84%, transparent); backdrop-filter: blur(18px) saturate(140%);
  -webkit-backdrop-filter: blur(18px) saturate(140%); border: 1px solid color-mix(in oklab, var(--text) 10%, transparent);
  box-shadow: 0 30px 80px -30px color-mix(in oklab, #000 45%, transparent), 0 0 0 1px color-mix(in oklab, #fff 6%, transparent) inset; }
.login__brand { display: grid; justify-items: center; gap: var(--space-3); text-align: center; }
.login__brand .brand__mark, .login__brand .brand__logo { width: 56px; height: 56px; font-size: 1.4rem; border-radius: 16px;
  box-shadow: 0 0 0 6px var(--accent-soft), 0 14px 34px -10px color-mix(in oklab, var(--accent) 70%, transparent); }
.login__brand .topbar__title { font-size: 1.55rem; letter-spacing: -0.01em; }
.login__subtitle { color: var(--text-muted); font-size: var(--text-sm); }
.login__foot { display: flex; flex-wrap: wrap; justify-content: center; gap: var(--space-2) var(--space-4); font-size: var(--text-xs); }
.login__foot a { color: var(--text-muted); text-decoration: none; }
.login__foot a:hover { color: var(--accent); }
.login__hero { display: none; }
@media (min-width: 960px) {
  .login--split { grid-template-columns: minmax(0, 480px) 420px; justify-content: center; align-items: center; column-gap: clamp(48px, 7vw, 120px); }
  .login__hero { display: grid; gap: var(--space-4); align-content: center; }
}
.login__eyebrow { justify-self: start; padding: 4px 12px; border-radius: 999px; font-size: var(--text-xs); font-weight: 600;
  letter-spacing: 0.04em; color: var(--accent); background: var(--accent-soft); }
.login__headline { margin: 0; padding-bottom: 0.12em; font-size: clamp(2rem, 3.2vw, 2.9rem); line-height: 1.12; letter-spacing: -0.02em;
  background: linear-gradient(120deg, var(--text) 30%, color-mix(in oklab, var(--accent) 85%, var(--text))); -webkit-background-clip: text;
  background-clip: text; color: transparent; }
.login__lede { margin: 0; font-size: 1.05rem; color: var(--text-muted); max-width: 44ch; }
.login__points { list-style: none; margin: var(--space-2) 0 0; padding: 0; display: grid; gap: var(--space-3); }
.login__points li { display: flex; align-items: center; gap: var(--space-3); }
.login__tick { width: 26px; height: 26px; flex: none; display: grid; place-items: center; border-radius: 50%; font-size: 13px;
  color: var(--on-accent); background: var(--accent); box-shadow: 0 6px 16px -6px var(--accent); }
.terms-check { align-items: flex-start; line-height: 1.45; }
.terms-check input { margin-top: 3px; }
.is-locked { opacity: 0.45; pointer-events: none; filter: grayscale(0.6); }
.policy-text { white-space: pre-wrap; line-height: 1.6; max-height: 55vh; overflow: auto; padding-right: var(--space-2); }
.divider { display: flex; align-items: center; gap: var(--space-3); color: var(--text-subtle); font-size: var(--text-xs); }
.divider::before, .divider::after { content: ""; flex: 1; height: 1px; background: var(--border); }
.telegram-login { display: flex; justify-content: center; min-height: 40px; }

.boot { min-height: 100vh; display: grid; place-items: center; color: var(--text-subtle); }

/* Animated backgrounds (js/backdrop.js) */
.backdrop { position: fixed; inset: 0; z-index: -1; width: 100%; height: 100%; pointer-events: none; overflow: hidden; }
html[data-backdrop="galaxy"] body, html[data-backdrop="aurora"] body { background: transparent; }
html[data-backdrop="galaxy"] { background: #05060f; }
html[data-backdrop="galaxy"] .sidebar { background: color-mix(in oklab, var(--surface) 82%, transparent); backdrop-filter: blur(10px); }
html[data-backdrop="aurora"] { background: var(--bg); }
html[data-backdrop="aurora"] .sidebar { background: color-mix(in oklab, var(--surface) 85%, transparent); backdrop-filter: blur(10px); }
.aurora { position: absolute; width: 70vmax; height: 70vmax; border-radius: 50%; filter: blur(90px); opacity: 0.35; }
.aurora--a { background: var(--accent); top: -30vmax; left: -20vmax; animation: aurora-a 28s ease-in-out infinite alternate; }
.aurora--b { background: #6d5bd0; bottom: -35vmax; right: -25vmax; animation: aurora-b 34s ease-in-out infinite alternate; }
.aurora--c { background: #1f9bb8; top: 30%; left: 40%; width: 45vmax; height: 45vmax; opacity: 0.22; animation: aurora-c 40s ease-in-out infinite alternate; }
@keyframes aurora-a { to { transform: translate(25vw, 18vh) scale(1.15); } }
@keyframes aurora-b { to { transform: translate(-22vw, -15vh) scale(0.9); } }
@keyframes aurora-c { to { transform: translate(-30vw, 10vh) scale(1.2); } }
@media (prefers-reduced-motion: reduce) { .aurora { animation: none; } }

/* Still textures (Settings → Dashboard look → Background): mesh, grain, dots */
html[data-backdrop="mesh"] body, html[data-backdrop="grain"] body, html[data-backdrop="dots"] body { background: transparent; }
html[data-backdrop="mesh"] { background:
  radial-gradient(60vmax 50vmax at 0% 0%, color-mix(in oklab, var(--accent) 22%, transparent), transparent 60%),
  radial-gradient(55vmax 45vmax at 100% 0%, color-mix(in oklab, #6d5bd0 18%, transparent), transparent 60%),
  radial-gradient(60vmax 50vmax at 50% 110%, color-mix(in oklab, #1f9bb8 16%, transparent), transparent 60%), var(--bg); background-attachment: fixed; }
html[data-backdrop="grain"] { background: var(--bg); }
html[data-backdrop="grain"] body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none; opacity: 0.07;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E"); }
html[data-backdrop="dots"] { background: var(--bg); }
html[data-backdrop="dots"] body::before { content: ""; position: fixed; inset: 0; z-index: -1; pointer-events: none;
  background-image: radial-gradient(color-mix(in oklab, var(--text) 16%, transparent) 1px, transparent 1.4px); background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, #000, transparent 85%); -webkit-mask-image: linear-gradient(to bottom, #000, transparent 85%); }
html[data-backdrop="mesh"] .sidebar, html[data-backdrop="grain"] .sidebar, html[data-backdrop="dots"] .sidebar {
  background: color-mix(in oklab, var(--surface) 88%, transparent); backdrop-filter: blur(10px); }