/* —— Menu —— */
.screen-menu {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    overflow: auto;
    padding: 2px 4px 20px;
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.14) transparent;
}

.screen-menu::-webkit-scrollbar { width: 6px; }
.screen-menu::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 999px;
}

.hero {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 540px;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(1.9rem, 4.6vw, 2.65rem);
    font-weight: 800;
    letter-spacing: -0.055em;
    line-height: 0.96;
}

.tagline {
    color: var(--muted);
    font-size: clamp(0.94rem, 1.5vw, 1.08rem);
    font-weight: 500;
    line-height: 1.5;
    max-width: 44ch;
}

.panel {
    border: 1px solid var(--line);
    border-radius: var(--radius);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent 42%),
        var(--bg-lift);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.045);
}

.setup-panel {
    padding: 14px 16px 16px;
}

.panel-head {
    margin-bottom: 10px;
}

.setup {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
}

.seg {
    display: inline-flex;
    padding: 3px;
    border-radius: 999px;
    background: rgba(0, 0, 0, 0.36);
    border: 1px solid var(--line);
    gap: 1px;
}

.setup-row {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
}

.chip {
    padding: 8px 15px;
    border-radius: 999px;
    border: 1px solid transparent;
    background: transparent;
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: -0.01em;
    transition:
        background 160ms ease,
        color 160ms ease,
        border-color 160ms ease,
        box-shadow 160ms ease,
        transform 140ms var(--ease);
}

.chip:hover { color: var(--text); }

.setup-row .chip {
    border-color: var(--line);
    background: rgba(255, 255, 255, 0.025);
}

.setup-row .chip:hover {
    border-color: var(--line-strong);
    background: rgba(255, 255, 255, 0.055);
}

.chip.active,
.chip.toggle[aria-pressed="true"] {
    color: var(--accent-ink);
    background: var(--accent);
    border-color: transparent;
    box-shadow: 0 6px 16px rgba(61, 255, 181, 0.22);
}

.chip.toggle[aria-pressed="true"]:hover {
    color: var(--accent-ink);
}

.modes {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.modes-label {
    margin: 0;
}

.mode-grid {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 11px;
}

.mode-card {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 5px;
    min-height: 118px;
    padding: 16px 15px 14px;
    border-radius: 18px;
    border: 1px solid var(--line);
    background:
        linear-gradient(155deg, rgba(255, 255, 255, 0.045), transparent 44%),
        var(--bg-lift);
    text-align: left;
    overflow: hidden;
    isolation: isolate;
    transition:
        transform 200ms var(--ease),
        border-color 200ms ease,
        background 200ms ease,
        box-shadow 200ms ease;
    animation: cardIn 480ms var(--ease) both;
    animation-delay: calc(var(--i, 0) * 40ms);
}

.mode-card::after {
    content: "";
    position: absolute;
    inset: auto -20% -40% auto;
    width: 120px;
    height: 120px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(61, 255, 181, 0.12), transparent 68%);
    opacity: 0;
    transition: opacity 240ms ease;
    pointer-events: none;
    z-index: -1;
}

.mode-card:hover {
    transform: translateY(-3px);
    border-color: rgba(61, 255, 181, 0.34);
    box-shadow: var(--shadow);
}

.mode-card:hover::after { opacity: 1; }

.mode-card:active {
    transform: translateY(-1px) scale(0.99);
}

.mode-card.featured {
    border-color: rgba(61, 255, 181, 0.3);
    background:
        linear-gradient(155deg, rgba(61, 255, 181, 0.11), transparent 52%),
        var(--bg-card);
}

.mode-card.fun {
    border-color: rgba(255, 176, 32, 0.28);
    background:
        linear-gradient(155deg, rgba(255, 176, 32, 0.1), transparent 50%),
        var(--bg-lift);
}

.mode-card.nitro {
    grid-column: span 2;
    min-height: 128px;
    border-color: rgba(61, 255, 181, 0.38);
    background:
        linear-gradient(135deg, rgba(61, 255, 181, 0.14), transparent 48%),
        linear-gradient(155deg, rgba(122, 162, 255, 0.08), transparent 60%),
        var(--bg-card);
}

.mode-card.nitro .mode-time {
    font-size: 1.7rem;
}

@media (max-width: 560px) {
    .mode-card.nitro { grid-column: span 2; }
}

.mode-badge {
    position: absolute;
    top: 13px;
    right: 13px;
    padding: 4px 8px;
    border-radius: 999px;
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.mode-badge.fun-badge {
    background: rgba(255, 176, 32, 0.14);
    color: var(--warn);
}

.mode-time {
    font-family: var(--font-mono);
    font-size: 1.55rem;
    font-weight: 600;
    color: var(--accent);
    letter-spacing: -0.05em;
    line-height: 1;
}

.mode-name {
    font-family: var(--font-display);
    font-size: 1.15rem;
    font-weight: 700;
    letter-spacing: -0.03em;
}

.mode-desc {
    margin-top: auto;
    color: var(--muted);
    font-size: 0.83rem;
    font-weight: 500;
    line-height: 1.35;
}

.bests {
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 10px;
}

.best-pill {
    display: flex;
    flex-direction: column;
    gap: 5px;
    padding: 13px 14px;
    border-radius: 15px;
    border: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent),
        rgba(255, 255, 255, 0.015);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--muted);
    transition: border-color 180ms ease, background 180ms ease;
}

.best-pill:hover {
    border-color: var(--line-strong);
    background: rgba(255, 255, 255, 0.03);
}

.best-pill strong {
    color: var(--text);
    font-variant-numeric: tabular-nums;
    font-size: 1.28rem;
    font-weight: 800;
    letter-spacing: -0.03em;
    text-transform: none;
}

/* —— Profile / XP —— */
.profile-strip {
    display: grid;
    grid-template-columns: 1.4fr auto 1.6fr;
    gap: 14px;
    align-items: center;
    padding: 14px 16px;
}

.profile-rank,
.profile-streak {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.profile-label {
    color: var(--muted);
    font-size: 0.64rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.profile-rank strong,
.profile-streak strong {
    font-family: var(--font-display);
    font-size: 1.2rem;
    font-weight: 800;
    letter-spacing: -0.03em;
}

.profile-sub {
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 600;
}

.xp-track {
    width: 100%;
    height: 5px;
    margin-top: 4px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--line);
}

#xp-fill {
    display: block;
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    transition: width 400ms var(--ease);
}

.xp-meta {
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 600;
    font-variant-numeric: tabular-nums;
}

.achievements-row {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    justify-content: flex-end;
}

.ach-chip {
    display: grid;
    place-items: center;
    width: 32px;
    height: 32px;
    border-radius: 10px;
    border: 1px solid var(--line);
    background: rgba(255, 255, 255, 0.02);
    color: var(--dim);
    font-size: 0.85rem;
    opacity: 0.45;
    transition: opacity 180ms ease, border-color 180ms ease, color 180ms ease, background 180ms ease;
}

.ach-chip.unlocked {
    opacity: 1;
    color: var(--accent);
    border-color: rgba(61, 255, 181, 0.28);
    background: var(--accent-dim);
}

/* —— Heat —— */
.heat-meter {
    display: flex;
    align-items: center;
    gap: 10px;
    width: min(420px, 92%);
    margin: 0 auto;
    opacity: 0.55;
    transition: opacity 200ms ease;
}

.heat-meter.is-warm { opacity: 0.85; }
.heat-meter.is-hot { opacity: 1; }
.heat-meter.is-blaze .heat-label { color: var(--warn); }

.heat-label {
    flex-shrink: 0;
    color: var(--muted);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.heat-track {
    flex: 1;
    height: 6px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--line);
}

#heat-fill {
    display: block;
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, #3dffb5, #ffb020 70%, #ff5c7a);
    box-shadow: 0 0 12px rgba(61, 255, 181, 0.25);
    transition: width 120ms linear;
}

.race-wrap.heat-warm {
    border-color: rgba(61, 255, 181, 0.22);
}

.race-wrap.heat-hot {
    border-color: rgba(255, 176, 32, 0.35);
    box-shadow: var(--shadow), 0 0 40px rgba(255, 176, 32, 0.08), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.race-wrap.heat-blaze {
    border-color: rgba(255, 92, 122, 0.35);
    box-shadow: var(--shadow), 0 0 50px rgba(255, 92, 122, 0.1), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.heat-meter.nitro-hide { display: none; }

/* —— Nitro race track —— */
.nitro-board {
    flex-shrink: 0;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 14px 14px 16px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background:
        radial-gradient(ellipse 80% 60% at 50% -10%, rgba(61, 255, 181, 0.12), transparent 55%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 42%),
        #0c1018;
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.05),
        0 18px 40px rgba(0, 0, 0, 0.35);
    animation: fadeUp 280ms var(--ease) both;
}

.nitro-board[hidden] { display: none !important; }

.nitro-board-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 12px;
    position: relative;
    min-height: 42px;
    padding: 0 2px;
}

.nitro-place-block {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.nitro-place-label {
    color: var(--muted);
    font-size: 0.62rem;
    font-weight: 800;
    letter-spacing: 0.16em;
    text-transform: uppercase;
}

#nitro-place {
    font-family: var(--font-display);
    font-size: 1.7rem;
    font-weight: 800;
    letter-spacing: -0.05em;
    line-height: 1;
    color: var(--accent);
    font-variant-numeric: tabular-nums;
    text-shadow: 0 0 22px rgba(61, 255, 181, 0.35);
}

.nitro-track-title {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 12px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.08);
    background: rgba(255, 255, 255, 0.03);
    color: var(--muted);
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nitro-live-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: #ff5c7a;
    box-shadow: 0 0 0 0 rgba(255, 92, 122, 0.55);
    animation: nitroPulse 1.4s ease infinite;
}

@keyframes nitroPulse {
    0% { box-shadow: 0 0 0 0 rgba(255, 92, 122, 0.55); }
    70% { box-shadow: 0 0 0 8px rgba(255, 92, 122, 0); }
    100% { box-shadow: 0 0 0 0 rgba(255, 92, 122, 0); }
}

.nitro-countdown {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    z-index: 5;
    min-width: 88px;
    padding: 10px 18px;
    border-radius: 16px;
    border: 1px solid rgba(61, 255, 181, 0.35);
    background: rgba(8, 12, 18, 0.92);
    font-family: var(--font-display);
    font-size: 1.85rem;
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--text);
    text-align: center;
    text-shadow: 0 0 28px rgba(61, 255, 181, 0.45);
    pointer-events: none;
}

.nitro-countdown.pop {
    animation: countdownPop 420ms var(--ease);
}

.nitro-track-shell {
    position: relative;
    padding: 12px 12px 10px;
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.06);
    background:
        linear-gradient(90deg, rgba(61, 255, 181, 0.05), transparent 18%, transparent 82%, rgba(255, 176, 32, 0.08)),
        repeating-linear-gradient(
            90deg,
            rgba(255, 255, 255, 0.015) 0 28px,
            rgba(255, 255, 255, 0.03) 28px 56px
        ),
        #090d13;
    overflow: hidden;
}

.nitro-finish-banner {
    position: absolute;
    right: 18px;
    top: 8px;
    z-index: 1;
    padding: 3px 8px;
    border-radius: 6px;
    background: repeating-linear-gradient(
        -45deg,
        #111 0 6px,
        #f5f5f5 6px 12px
    );
    color: #111;
    font-size: 0.58rem;
    font-weight: 900;
    letter-spacing: 0.14em;
    mix-blend-mode: screen;
    opacity: 0.55;
    pointer-events: none;
}

.nitro-lanes {
    display: flex;
    flex-direction: column;
    gap: 10px;
    position: relative;
    z-index: 2;
}

.nitro-lane {
    display: grid;
    grid-template-columns: 108px minmax(0, 1fr) 52px;
    align-items: center;
    gap: 12px;
    padding: 8px 10px;
    border-radius: 14px;
    border: 1px solid transparent;
    background: rgba(255, 255, 255, 0.02);
    transition: border-color 180ms ease, background 180ms ease, transform 180ms ease;
}

.nitro-lane.you {
    border-color: rgba(61, 255, 181, 0.28);
    background: linear-gradient(90deg, rgba(61, 255, 181, 0.1), rgba(61, 255, 181, 0.03));
    box-shadow: 0 0 0 1px rgba(61, 255, 181, 0.08);
}

.nitro-lane.leading:not(.you) {
    border-color: rgba(255, 176, 32, 0.28);
    background: linear-gradient(90deg, rgba(255, 176, 32, 0.08), transparent);
}

.nitro-lane.finished {
    opacity: 0.92;
}

.nitro-lane.finished .nitro-name {
    color: var(--accent-2);
}

.nitro-lane-meta {
    display: flex;
    align-items: center;
    gap: 8px;
    min-width: 0;
}

.nitro-lane-num {
    flex: 0 0 auto;
    width: 22px;
    height: 22px;
    display: grid;
    place-items: center;
    border-radius: 7px;
    background: rgba(255, 255, 255, 0.06);
    color: var(--muted);
    font-size: 0.7rem;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
}

.nitro-lane.you .nitro-lane-num {
    background: var(--accent-dim);
    color: var(--accent);
}

.nitro-lane-who {
    display: flex;
    flex-direction: column;
    gap: 1px;
    min-width: 0;
}

.nitro-name {
    font-size: 0.86rem;
    font-weight: 750;
    letter-spacing: -0.02em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    display: flex;
    align-items: center;
    gap: 6px;
}

.nitro-bot-tag {
    flex: 0 0 auto;
    padding: 1px 5px;
    border-radius: 999px;
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: var(--muted);
    font-size: 0.55rem;
    font-style: normal;
    font-weight: 800;
    letter-spacing: 0.08em;
}

.nitro-lane-place {
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.nitro-lane.leading .nitro-lane-place,
.nitro-lane.you .nitro-lane-place {
    color: var(--accent);
}

.nitro-rail {
    position: relative;
    height: 26px;
    border-radius: 999px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.04), transparent 40%),
        #05070b;
    border: 1px solid rgba(255, 255, 255, 0.08);
    overflow: hidden;
    box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.45);
}

.nitro-rail-dashes {
    position: absolute;
    inset: 50% 10px auto 10px;
    height: 2px;
    transform: translateY(-50%);
    background: repeating-linear-gradient(
        90deg,
        rgba(255, 255, 255, 0.22) 0 10px,
        transparent 10px 22px
    );
    opacity: 0.35;
    pointer-events: none;
}

.nitro-progress {
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 0;
    border-radius: inherit;
    background: linear-gradient(90deg, transparent, color-mix(in srgb, var(--car, var(--accent)) 35%, transparent));
    opacity: 0.55;
    pointer-events: none;
    transition: width 90ms linear;
}

.nitro-finish-flag {
    position: absolute;
    right: 8px;
    top: 50%;
    transform: translateY(-50%);
    width: 4px;
    height: 16px;
    border-radius: 2px;
    background: repeating-linear-gradient(
        180deg,
        #fff 0 3px,
        #111 3px 6px
    );
    opacity: 0.7;
    z-index: 1;
}

.nitro-car {
    position: absolute;
    left: 0;
    top: 50%;
    width: 28px;
    height: 14px;
    margin-left: -14px;
    transform: translateY(-50%);
    transition: left 90ms linear;
    z-index: 2;
    filter: drop-shadow(0 3px 6px rgba(0, 0, 0, 0.55));
}

.nitro-body {
    display: block;
    width: 100%;
    height: 100%;
    border-radius: 5px 11px 8px 5px;
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.35), transparent 42%),
        var(--car, var(--accent));
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.4);
    position: relative;
}

.nitro-body::before {
    content: "";
    position: absolute;
    left: 5px;
    top: 2px;
    width: 9px;
    height: 6px;
    border-radius: 2px 4px 3px 2px;
    background: rgba(8, 10, 14, 0.42);
}

.nitro-body::after {
    content: "";
    position: absolute;
    right: 3px;
    bottom: -2px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: #12151c;
    box-shadow: -12px 0 0 #12151c, 0 0 0 1px rgba(255, 255, 255, 0.12);
}

.nitro-trail {
    position: absolute;
    right: 100%;
    top: 50%;
    width: 18px;
    height: 4px;
    margin-right: 2px;
    transform: translateY(-50%);
    border-radius: 999px;
    background: linear-gradient(90deg, transparent, var(--car, var(--accent)));
    opacity: 0.55;
    filter: blur(1px);
}

.nitro-lane.finished .nitro-trail {
    opacity: 0;
}

.nitro-lane-stats {
    display: flex;
    flex-direction: column;
    align-items: flex-end;
    gap: 0;
    line-height: 1.05;
}

.nitro-wpm {
    font-family: var(--font-mono);
    font-size: 0.92rem;
    font-weight: 700;
    color: var(--text);
    font-variant-numeric: tabular-nums;
}

.nitro-wpm-label {
    color: var(--muted);
    font-size: 0.58rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.nitro-lane.you .nitro-wpm {
    color: var(--accent);
}

.screen-play.is-nitro .race-wrap {
    min-height: 0;
}

.screen-play.is-nitro .race {
    max-height: min(34vh, 260px);
    padding-top: 22px;
    padding-bottom: 28px;
}

.screen-play.is-nitro #nitro-board {
    margin-bottom: 4px;
}

@keyframes countdownPop {
    0% { opacity: 0; transform: translate(-50%, -50%) scale(0.7); }
    40% { opacity: 1; transform: translate(-50%, -50%) scale(1.08); }
    100% { opacity: 1; transform: translate(-50%, -50%) scale(1); }
}

.toast-stack {
    position: absolute;
    top: 16px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 8;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
    width: max-content;
    max-width: 90%;
}

.toast {
    padding: 8px 14px;
    border-radius: 999px;
    border: 1px solid rgba(61, 255, 181, 0.28);
    background: rgba(8, 10, 14, 0.78);
    color: var(--accent);
    font-size: 0.8rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    animation: toastIn 280ms var(--ease) both;
}

.toast.out { animation: toastOut 260ms ease forwards; }
.toast-fire { color: var(--warn); border-color: rgba(255, 176, 32, 0.35); }
.toast-heat { color: var(--accent-2); }
.toast-fail { color: var(--error); border-color: rgba(255, 92, 122, 0.35); }
.toast-ach { color: var(--text); border-color: var(--line-strong); }

.char.word-pop {
    display: inline-block;
    animation: wordPop 300ms var(--ease);
}

@keyframes toastIn {
    from { opacity: 0; transform: translateY(-8px) scale(0.96); }
    to { opacity: 1; transform: translateY(0) scale(1); }
}

@keyframes toastOut {
    to { opacity: 0; transform: translateY(-6px) scale(0.96); }
}

@keyframes wordPop {
    0% { transform: scale(1); }
    40% { transform: scale(1.08); color: var(--accent); }
    100% { transform: scale(1); }
}

/* —— Play —— */
.screen-play {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
    gap: 14px;
    padding: 4px 0 4px;
    animation: fadeUp 320ms var(--ease) both;
}

.play-hud {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-shrink: 0;
}

.icon-btn {
    flex: 0 0 auto;
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    border: 1px solid var(--line);
    background: var(--bg-lift);
    font-size: 1.1rem;
    color: var(--muted);
    transition:
        background 160ms ease,
        transform 160ms var(--ease),
        border-color 160ms ease,
        color 160ms ease;
}

.icon-btn:hover {
    color: var(--text);
    background: var(--bg-card);
    border-color: var(--line-strong);
    transform: translateX(-2px);
}

.hud-rail {
    flex: 1;
    display: flex;
    align-items: stretch;
    gap: 0;
    min-width: 0;
    padding: 4px 6px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.035), transparent),
        rgba(17, 21, 28, 0.92);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.04);
}

.stat {
    flex: 1;
    padding: 9px 10px;
    text-align: center;
    min-width: 0;
    border-radius: 12px;
    transition: background 180ms ease;
}

.stat:hover {
    background: rgba(255, 255, 255, 0.025);
}

.stat-divider {
    width: 1px;
    margin: 9px 0;
    background: var(--line);
    flex-shrink: 0;
}

.stat-label {
    display: block;
    margin-bottom: 3px;
    color: var(--muted);
    font-size: 0.62rem;
    font-weight: 700;
    letter-spacing: 0.14em;
    text-transform: uppercase;
}

.stat strong {
    display: block;
    font-variant-numeric: tabular-nums;
    font-size: clamp(1.15rem, 2.2vw, 1.45rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 1;
    transition: color 150ms ease, transform 160ms var(--ease-snap);
}

.stat[data-stat="combo"] strong.is-hot {
    color: var(--accent);
    transform: scale(1.05);
}

.stat[data-stat="wpm"] strong.is-tick {
    color: var(--accent);
}

.caps-warn {
    margin: 0 auto;
    width: fit-content;
    padding: 7px 14px;
    border-radius: 999px;
    background: var(--error-dim);
    border: 1px solid rgba(255, 92, 122, 0.28);
    color: var(--error);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    animation: fadeUp 200ms var(--ease) both;
}

.lesson-banner {
    margin: 0 auto;
    width: fit-content;
    max-width: 92%;
    padding: 7px 14px;
    border-radius: 999px;
    border: 1px solid rgba(61, 255, 181, 0.22);
    background: var(--accent-dim);
    color: var(--accent);
    font-size: 0.78rem;
    font-weight: 700;
    text-align: center;
    letter-spacing: -0.01em;
    animation: fadeUp 220ms var(--ease) both;
}

.race-wrap {
    position: relative;
    flex: 1;
    display: grid;
    place-items: center;
    min-height: 0;
    padding: 10px;
    border-radius: var(--radius-lg);
    border: 1px solid var(--line);
    background:
        radial-gradient(ellipse 70% 48% at 50% 0%, rgba(61, 255, 181, 0.06), transparent 58%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 32%),
        var(--bg-lift);
    box-shadow: var(--shadow), inset 0 1px 0 rgba(255, 255, 255, 0.05);
}

.race {
    position: relative;
    width: min(880px, 100%);
    max-height: min(52vh, 420px);
    overflow: hidden;
    padding: 34px 30px 42px;
    outline: none;
    mask-image: linear-gradient(180deg, transparent 0%, #000 9%, #000 91%, transparent 100%);
    -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 9%, #000 91%, transparent 100%);
}

.race:focus-visible {
    outline: none;
}

.words {
    position: relative;
    font-family: var(--font-mono);
    font-size: var(--race-size);
    font-weight: 500;
    line-height: var(--race-lh);
    letter-spacing: 0.015em;
    word-break: break-word;
}

.char {
    display: inline;
    color: var(--dim);
    transition: color 60ms ease;
}

.char.space::after {
    content: "";
    display: inline-block;
    width: 0.52em;
}

.char.correct { color: var(--correct); }

.char.wrong {
    color: var(--error);
    background: var(--error-dim);
    border-radius: 3px;
    box-decoration-break: clone;
    -webkit-box-decoration-break: clone;
}

.char.current { color: var(--muted); }

.char.in-word { color: #9aa3b8; }

.caret {
    position: absolute;
    top: 0;
    left: 0;
    width: 2.5px;
    height: 1.05em;
    border-radius: 999px;
    background: var(--accent);
    box-shadow:
        0 0 0 3px rgba(61, 255, 181, 0.1),
        0 0 16px rgba(61, 255, 181, 0.4);
    transform: translate3d(0, 0, 0);
    transition: transform 48ms linear, height 80ms ease;
    pointer-events: none;
    z-index: 3;
    animation: caretBlink 1.05s steps(1) infinite;
    will-change: transform;
}

.race.is-typing .caret {
    animation: none;
    opacity: 1;
}

.race.has-error {
    animation: raceNudge 170ms var(--ease);
}

.focus-hint {
    position: absolute;
    bottom: 18px;
    left: 50%;
    transform: translateX(-50%);
    padding: 8px 15px;
    border-radius: 999px;
    border: 1px solid var(--line);
    background: rgba(8, 10, 14, 0.62);
    color: var(--muted);
    font-size: 0.8rem;
    font-weight: 600;
    opacity: 0;
    pointer-events: none;
    transition: opacity 220ms ease, transform 220ms var(--ease);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.race-wrap.show-hint .focus-hint {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.play-foot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 11px;
    flex-shrink: 0;
    padding-top: 2px;
}

.progress-track {
    width: min(460px, 88%);
    height: 4px;
    overflow: hidden;
    border-radius: 999px;
    background: rgba(255, 255, 255, 0.055);
    border: 1px solid var(--line);
}

#progress-fill {
    display: block;
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    box-shadow: 0 0 14px rgba(61, 255, 181, 0.32);
    transition: width 100ms linear;
}

.tip {
    color: var(--muted);
    font-size: 0.74rem;
    text-align: center;
    letter-spacing: 0.01em;
    opacity: 0.9;
}

/* —— Lessons —— */
.lesson-progress-bar {
    display: flex;
    flex-direction: column;
    gap: 10px;
    padding: 14px 16px;
}

.lesson-progress-meta {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    color: var(--muted);
    font-size: 0.68rem;
    font-weight: 700;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.lesson-progress-meta strong {
    color: var(--text);
    font-size: 0.92rem;
    font-weight: 800;
    letter-spacing: -0.02em;
    text-transform: none;
    font-variant-numeric: tabular-nums;
}

.lesson-track { width: 100%; }

#lesson-progress-fill {
    display: block;
    width: 0%;
    height: 100%;
    border-radius: inherit;
    background: linear-gradient(90deg, var(--accent), var(--accent-2));
    box-shadow: 0 0 14px rgba(61, 255, 181, 0.32);
    transition: width 320ms var(--ease);
}

.lesson-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    padding-bottom: 6px;
}

.lesson-unit {
    margin: 14px 0 2px;
    padding-left: 2px;
    color: var(--accent);
    font-size: 0.66rem;
    font-weight: 800;
    letter-spacing: 0.13em;
    text-transform: uppercase;
}

.lesson-unit:first-child { margin-top: 2px; }

.lesson-card {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 14px;
    width: 100%;
    padding: 14px 15px;
    border-radius: 16px;
    border: 1px solid var(--line);
    background:
        linear-gradient(155deg, rgba(255, 255, 255, 0.035), transparent 48%),
        var(--bg-lift);
    text-align: left;
    transition:
        transform 180ms var(--ease),
        border-color 180ms ease,
        box-shadow 180ms ease,
        background 180ms ease;
    animation: cardIn 400ms var(--ease) both;
}

.lesson-card:hover {
    transform: translateY(-2px);
    border-color: rgba(61, 255, 181, 0.28);
    box-shadow: var(--shadow-soft);
}

.lesson-card:active {
    transform: translateY(0) scale(0.995);
}

.lesson-card.done {
    border-color: rgba(61, 255, 181, 0.2);
    background:
        linear-gradient(155deg, rgba(61, 255, 181, 0.07), transparent 50%),
        var(--bg-lift);
}

.lesson-index {
    display: grid;
    place-items: center;
    width: 38px;
    height: 38px;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.035);
    border: 1px solid var(--line);
    font-family: var(--font-mono);
    font-size: 0.86rem;
    font-weight: 600;
    color: var(--muted);
    transition: background 180ms ease, color 180ms ease, border-color 180ms ease;
}

.lesson-card.done .lesson-index {
    background: var(--accent-dim);
    border-color: rgba(61, 255, 181, 0.28);
    color: var(--accent);
}

.lesson-copy {
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 3px;
}

.lesson-title {
    font-family: var(--font-display);
    font-size: 1.02rem;
    font-weight: 700;
    letter-spacing: -0.025em;
}

.lesson-desc {
    color: var(--muted);
    font-size: 0.82rem;
    font-weight: 500;
    line-height: 1.35;
}

.lesson-keys {
    margin-top: 3px;
    font-family: var(--font-mono);
    font-size: 0.7rem;
    color: var(--accent-2);
    letter-spacing: 0.1em;
    opacity: 0.8;
}

.lesson-cta {
    flex-shrink: 0;
    padding: 8px 13px;
    border-radius: 999px;
    border: 1px solid var(--line-strong);
    background: rgba(255, 255, 255, 0.04);
    color: var(--text);
    font-size: 0.76rem;
    font-weight: 700;
    transition: background 160ms ease, border-color 160ms ease, color 160ms ease;
}

.lesson-card:hover .lesson-cta {
    background: var(--accent);
    border-color: transparent;
    color: var(--accent-ink);
}

.lesson-card.done .lesson-cta {
    border-color: rgba(61, 255, 181, 0.28);
    color: var(--accent);
    background: var(--accent-dim);
}

.lesson-card.done:hover .lesson-cta {
    background: var(--accent);
    color: var(--accent-ink);
}

.screen-results {
    flex: 1;
    min-height: 0;
}

@keyframes caretBlink {
    0%, 45% { opacity: 1; }
    50%, 100% { opacity: 0; }
}

@keyframes raceNudge {
    0%, 100% { transform: translateX(0); }
    30% { transform: translateX(-2px); }
    60% { transform: translateX(2px); }
}

@media (max-width: 860px) {
    .bests { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .mode-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .profile-strip { grid-template-columns: 1fr 1fr; }
    .achievements-row { grid-column: 1 / -1; justify-content: flex-start; }
    .race { padding: 26px 16px 34px; }
}

@media (max-width: 560px) {
    .mode-grid { grid-template-columns: 1fr 1fr; }
    .setup { flex-direction: column; align-items: stretch; }
    .seg { width: 100%; }
    .seg .chip { flex: 1; text-align: center; }
    .hud-rail { flex-wrap: wrap; padding: 4px; }
    .stat-divider { display: none; }
    .stat { flex: 1 1 40%; }
    .race { max-height: 46vh; padding: 22px 12px 30px; }
    .profile-strip { grid-template-columns: 1fr; }
    .nitro-lane {
        grid-template-columns: 72px minmax(0, 1fr) 42px;
        gap: 8px;
        padding: 7px 8px;
    }
    .nitro-lane-num { display: none; }
    .nitro-name { font-size: 0.76rem; }
    .nitro-car { width: 24px; height: 12px; margin-left: -12px; }
    .nitro-rail { height: 22px; }
    .nitro-track-title { display: none; }
    .nitro-wpm { font-size: 0.8rem; }
    .lesson-card {
        grid-template-columns: auto 1fr;
        grid-template-rows: auto auto;
        gap: 10px 12px;
    }
    .lesson-cta {
        grid-column: 2;
        justify-self: start;
    }
}