/* ==========================================================================
   App-Shell: Rail-Navigation, Topbar, View-Router, Mobile-Dock
   ========================================================================== */

.app {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: var(--rail-w) 1fr;
    height: 100dvh;
    transition: grid-template-columns var(--dur) var(--ease);
}

.app.is-rail-collapsed { grid-template-columns: var(--rail-w-collapsed) 1fr; }

/* --- Rail ---------------------------------------------------------------- */
.rail {
    position: relative;
    display: flex;
    flex-direction: column;
    gap: 6px;
    padding: 18px 14px;
    background: linear-gradient(180deg, rgba(19, 22, 29, .9), rgba(10, 11, 15, .9));
    border-right: 1px solid var(--line);
    backdrop-filter: blur(18px);
    overflow: hidden;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 6px 8px 20px;
    text-decoration: none;
    color: inherit;
}
.brand:hover { text-decoration: none; }

.brand__mark {
    flex: none;
    display: grid;
    place-items: center;
    width: 40px;
    height: 40px;
    border-radius: 12px;
    background: linear-gradient(140deg, var(--ember), #ff9a3c);
    font-size: 21px;
    box-shadow: var(--glow-ember);
    transition: transform .5s var(--ease-spring);
}

.brand:hover .brand__mark { transform: rotate(-8deg) scale(1.08); }

.brand__text { overflow: hidden; white-space: nowrap; }

.brand__name {
    display: block;
    font-family: var(--font-display);
    font-weight: 700;
    font-size: 16px;
    letter-spacing: -.02em;
}

.brand__sub {
    display: block;
    font-size: 10px;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--text-faint);
}

.rail__group-label {
    padding: 16px 12px 6px;
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: var(--text-faint);
    white-space: nowrap;
    overflow: hidden;
}

.navlink {
    position: relative;
    display: flex;
    align-items: center;
    gap: 13px;
    padding: 11px 12px;
    border: 0;
    border-radius: var(--r-sm);
    background: transparent;
    color: var(--text-dim);
    font-family: var(--font-display);
    font-weight: 600;
    font-size: 14.5px;
    text-align: left;
    white-space: nowrap;
    transition: color .2s var(--ease), background .2s var(--ease);
}

.navlink__icon {
    flex: none;
    display: grid;
    place-items: center;
    width: 24px;
    font-size: 18px;
    transition: transform .35s var(--ease-spring);
}

.navlink__label { overflow: hidden; }

.navlink__badge {
    margin-left: auto;
    padding: 2px 8px;
    border-radius: var(--r-pill);
    background: rgba(255, 255, 255, .07);
    font-size: 11px;
    font-variant-numeric: tabular-nums;
    color: var(--text-dim);
}

.navlink:hover { color: var(--text); background: rgba(255, 255, 255, .045); }
.navlink:hover .navlink__icon { transform: scale(1.16) rotate(-6deg); }

.navlink.is-active {
    color: var(--text);
    background: linear-gradient(90deg, rgba(255, 90, 31, .16), rgba(255, 90, 31, .02));
}

.navlink.is-active::before {
    content: '';
    position: absolute;
    left: -14px;
    top: 50%;
    width: 3px;
    height: 22px;
    border-radius: 0 3px 3px 0;
    background: var(--ember);
    box-shadow: 0 0 14px var(--ember);
    transform: translateY(-50%);
    animation: rail-pop .34s var(--ease-spring) both;
}

@keyframes rail-pop {
    from { height: 4px; opacity: 0; }
}

.rail__foot { margin-top: auto; padding-top: 14px; }

.rail-profile {
    display: flex;
    align-items: center;
    gap: 11px;
    width: 100%;
    padding: 10px;
    border: 1px solid var(--line);
    border-radius: var(--r-md);
    background: rgba(255, 255, 255, .03);
    text-align: left;
    transition: border-color .2s, background .2s, transform .2s var(--ease-spring);
}

.rail-profile:hover { background: rgba(255, 255, 255, .06); border-color: var(--line-strong); transform: translateY(-2px); }

.avatar {
    flex: none;
    display: grid;
    place-items: center;
    width: 36px;
    height: 36px;
    border-radius: 11px;
    background: linear-gradient(140deg, var(--surface-3), var(--surface-2));
    border: 1px solid var(--line-strong);
    font-size: 17px;
    font-weight: 700;
}

.avatar--online { box-shadow: 0 0 0 2px rgba(34, 224, 161, .5); }

.rail-profile__meta { overflow: hidden; white-space: nowrap; }
.rail-profile__name { display: block; font-weight: 600; font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; }
.rail-profile__sub { display: block; font-size: 11.5px; color: var(--text-faint); }

.rail-toggle {
    position: absolute;
    top: 26px;
    right: -1px;
    width: 22px;
    height: 30px;
    display: grid;
    place-items: center;
    border: 1px solid var(--line);
    border-right: 0;
    border-radius: var(--r-xs) 0 0 var(--r-xs);
    background: var(--surface-2);
    color: var(--text-faint);
    font-size: 11px;
    opacity: 0;
    transition: opacity .2s, color .2s;
}

.rail:hover .rail-toggle { opacity: 1; }
.rail-toggle:hover { color: var(--text); }

/* Collapsed-Zustand */
.is-rail-collapsed .brand__text,
.is-rail-collapsed .navlink__label,
.is-rail-collapsed .navlink__badge,
.is-rail-collapsed .rail__group-label,
.is-rail-collapsed .rail-profile__meta { display: none; }

.is-rail-collapsed .navlink,
.is-rail-collapsed .rail-profile,
.is-rail-collapsed .brand { justify-content: center; padding-left: 8px; padding-right: 8px; }

/* --- Main ---------------------------------------------------------------- */
.main {
    display: flex;
    flex-direction: column;
    min-width: 0;
    overflow: hidden;
}

.topbar {
    flex: none;
    display: flex;
    align-items: center;
    gap: 14px;
    height: var(--topbar-h);
    padding: 0 22px;
    border-bottom: 1px solid var(--line);
    background: rgba(10, 11, 15, .55);
    backdrop-filter: blur(18px);
}

.topbar__title {
    display: flex;
    align-items: baseline;
    gap: 10px;
    min-width: 0;
}

.topbar__eyebrow {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: .18em;
    text-transform: uppercase;
    color: var(--text-faint);
}

.topbar__h {
    font-family: var(--font-display);
    font-size: 19px;
    font-weight: 700;
    letter-spacing: -.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.topbar__wallet { display: flex; align-items: center; gap: 8px; margin-left: auto; }

.wallet-chip {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    padding: 7px 14px;
    border-radius: var(--r-pill);
    background: rgba(255, 255, 255, .04);
    border: 1px solid var(--line);
    font-size: 13.5px;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
    transition: transform .2s var(--ease-spring), border-color .2s;
}

.wallet-chip--gold { color: var(--gold); }
.wallet-chip--ice { color: var(--ice); }
.wallet-chip.is-bumped { transform: scale(1.13); border-color: currentColor; }

.icon-btn {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border: 1px solid var(--line);
    border-radius: var(--r-sm);
    background: rgba(255, 255, 255, .03);
    font-size: 16px;
    transition: background .2s, border-color .2s, transform .2s var(--ease-spring);
}

.icon-btn:hover { background: rgba(255, 255, 255, .08); border-color: var(--line-strong); transform: translateY(-2px); }
.icon-btn.is-on { color: var(--ember); border-color: rgba(255, 90, 31, .4); }

/* --- View-Router --------------------------------------------------------- */
.views {
    position: relative;
    flex: 1;
    min-height: 0;
}

.view {
    position: absolute;
    inset: 0;
    display: none;
    flex-direction: column;
    min-height: 0;
}

.view.is-active { display: flex; animation: view-in .42s var(--ease-out) both; }

@keyframes view-in {
    from { opacity: 0; transform: translateY(14px) scale(.995); }
}

.view--scroll { overflow-y: auto; overflow-x: hidden; }
.view--pad { padding: 30px 32px 60px; }

.view__inner { width: min(1180px, 100%); margin: 0 auto; }

/* --- Mobile-Dock --------------------------------------------------------- */
.dock {
    display: none;
    position: fixed;
    z-index: 60;
    left: 50%;
    bottom: 14px;
    transform: translateX(-50%);
    align-items: center;
    gap: 4px;
    padding: 7px;
    border-radius: var(--r-pill);
    background: rgba(20, 23, 30, .88);
    border: 1px solid var(--line-strong);
    box-shadow: var(--shadow-lg);
    backdrop-filter: blur(20px);
    max-width: calc(100vw - 20px);
    overflow-x: auto;
    scrollbar-width: none;
}

.dock::-webkit-scrollbar { display: none; }

.dock__btn {
    flex: none;
    display: grid;
    place-items: center;
    width: 46px;
    height: 46px;
    border: 0;
    border-radius: 50%;
    background: transparent;
    font-size: 20px;
    opacity: .55;
    transition: opacity .2s, background .2s, transform .25s var(--ease-spring);
}

.dock__btn.is-active {
    opacity: 1;
    background: linear-gradient(140deg, var(--ember), #ff9a3c);
    transform: translateY(-3px) scale(1.06);
    box-shadow: var(--glow-ember);
}

/* --- Responsive ---------------------------------------------------------- */
@media (max-width: 900px) {
    .app { grid-template-columns: 1fr; }
    .rail { display: none; }
    .dock { display: flex; }
    .view--pad { padding: 20px 16px calc(var(--dock-h) + 30px); }
    .topbar { padding: 0 16px; }
    .topbar__eyebrow { display: none; }
}