/* ============================================================
   ghost-pace.css  —  Ghost Pace Game Mode Styles
   ============================================================ */

/* ===== RESET / BASE ===== */
*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    margin: 0;
    padding: 0;
    width: 100%;
    height: 100%;
    background: var(--gp-bg);
    color: var(--gp-text);
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    overflow-x: hidden;
}

/* ===== THEME VARS ===== */
:root {
    --gp-bg: #f8fafc;
    --gp-surface: #ffffff;
    --gp-surface2: #f1f5f9;
    --gp-text: #1e293b;
    --gp-text-sub: #64748b;
    --gp-accent: #0066FF;
    --gp-accent-rgb: 0, 102, 255;
    --gp-green: #16a34a;
    --gp-green-rgb: 22, 163, 74;
    --gp-red: #dc2626;
    --gp-red-rgb: 220, 38, 38;
    --gp-ghost: rgba(96, 165, 250, 0.65);
    --gp-ghost-glow: rgba(96, 165, 250, 0.35);
    --gp-border: #e2e8f0;
    --gp-shadow: rgba(0, 0, 0, 0.05);
    --gp-flow-bg: rgba(234, 179, 8, 0.12);
    --gp-flow-border: rgba(234, 179, 8, 0.5);
    --gp-flow-color: #a16207;
    --gp-ahead-shadow: 0 0 28px rgba(22, 163, 74, 0.1);
    --gp-behind-shadow: 0 0 28px rgba(220, 38, 38, 0.1);
}

[data-theme="dark"] {
    --gp-bg: #0f172a;
    --gp-surface: #1e293b;
    --gp-surface2: #334155;
    --gp-text: #f8fafc;
    --gp-text-sub: #94a3b8;
    --gp-accent: #3b82f6;
    --gp-accent-rgb: 59, 130, 246;
    --gp-border: rgba(255, 255, 255, 0.1);
    --gp-shadow: rgba(0, 0, 0, 0.3);
}

/* ===== APP WRAPPER ===== */
#gp-app {
    min-height: 100dvh;
    display: flex;
    flex-direction: column;
    width: 100%;
    margin: 0;
    padding: 0 0 2rem;
    /* Header handles top padding */
}

/* ===== HEADER ===== */
/* Standard Global Header Overrides for BP */
/* ===== HEADER OVERRIDES (Cleanup) ===== */
.lb-global-header {
    margin-bottom: 2rem !important;
}

/* Nav Brand logic now consistently handled by theme-sync.js and games.css */
.nav-brand-name {
    color: var(--text-primary);
}

.gp-header-inner {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 24px;
    position: relative;
}

.gp-header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 20;
}

.gp-header-center {
    position: absolute;
    left: 50%;
    top: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    justify-content: center;
    pointer-events: none;
    z-index: 10;
}

.gp-header-title {
    font-size: 1.25rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--gp-text);
    display: flex;
    align-items: center;
    gap: 0.5rem;
    white-space: nowrap;
    margin: 0;
    line-height: 1;
}

@media (max-width: 768px) {
    .gp-header-center {
        display: flex;
        position: absolute;
        left: 50%;
        top: 50%;
        transform: translate(-50%, -50%);
        pointer-events: none;
    }

    .gp-ghost-icon {
        display: none !important;
    }
}


.gp-header-title {
    font-size: 1.35rem;
    font-weight: 800;
    letter-spacing: -0.01em;
    color: var(--gp-text);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0;
    line-height: 1;
}

.gp-ghost-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    color: #3b82f6;
    filter: drop-shadow(0 0 8px rgba(59, 130, 246, 0.4));
}

.gp-header-center {
    flex: 1;
    display: flex;
    justify-content: center;
}

.gp-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    padding: 0 2rem;
}

/* ===== SETUP PANEL ===== */
#gp-setup {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: gpFadeIn 0.3s ease;
}

.gp-panel-title {
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.12em;
    color: var(--gp-text-sub);
    margin: 0 0 0.6rem;
}

/* Variant cards */
.gp-variant-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.25rem;
}

.gp-variant-card {
    border: 2px solid var(--gp-border);
    border-radius: 16px;
    padding: 1.5rem 1.25rem;
    cursor: pointer;
    text-align: center;
    background: var(--gp-surface);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
    position: relative;
    overflow: hidden;
}

.gp-variant-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(var(--gp-accent-rgb), 0.08), transparent);
    opacity: 0;
    transition: opacity 0.2s;
}

.gp-variant-card:hover {
    border-color: rgba(var(--gp-accent-rgb), 0.4);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--gp-shadow);
}

.gp-variant-card:hover::before {
    opacity: 1;
}

.gp-variant-card.active {
    border-color: var(--gp-accent);
    background: rgba(var(--gp-accent-rgb), 0.08);
    box-shadow: 0 4px 16px rgba(var(--gp-accent-rgb), 0.15);
}

.gp-variant-card.active::before {
    opacity: 1;
}

.gp-variant-icon {
    font-size: 2rem;
    margin-bottom: 0.75rem;
    line-height: 1;
    display: flex;
    justify-content: center;
    align-items: center;
}

.gp-variant-icon svg {
    width: 36px;
    height: 36px;
}

.gp-variant-name {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--gp-text);
    margin-bottom: 0.25rem;
}

.gp-variant-desc {
    font-size: 0.72rem;
    color: var(--gp-text-sub);
    line-height: 1.4;
}

/* WPM speed selector */
.gp-speed-row {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: center;
}

.gp-seg-btn {
    padding: 0.45rem 1rem;
    border-radius: 8px;
    border: 1px solid var(--gp-border);
    background: var(--gp-surface);
    color: var(--gp-text-sub);
    font-size: 0.85rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.18s;
    user-select: none;
}

.gp-seg-btn:hover {
    border-color: rgba(var(--gp-accent-rgb), 0.4);
    color: var(--gp-text);
    background: var(--gp-surface2);
}

.gp-seg-btn.active {
    border-color: var(--gp-accent);
    background: rgba(var(--gp-accent-rgb), 0.1);
    color: var(--gp-accent);
}

/* Custom WPM input */
.gp-custom-wpm {
    display: flex;
    align-items: center;
    gap: 0.4rem;
    flex-wrap: wrap;
}

.gp-custom-wpm-input {
    width: 72px;
    padding: 0.4rem 0.6rem;
    border-radius: 8px;
    border: 1px solid var(--gp-border);
    background: var(--gp-surface);
    color: var(--gp-text);
    font-size: 0.85rem;
    font-weight: 600;
    text-align: center;
    outline: none;
    transition: border-color 0.2s;
}

.gp-custom-wpm-input:focus {
    border-color: var(--gp-accent);
}

.gp-custom-wpm-label {
    font-size: 0.8rem;
    color: var(--gp-text-sub);
    font-weight: 500;
}

/* Setup rows */
.gp-setup-row {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

/* Level buttons */
.gp-level-row {
    display: flex;
    gap: 0.5rem;
}

/* Modifiers */
.gp-modifier-row {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
    padding: 0.75rem 1rem;
    border: 1px solid var(--gp-border);
    border-radius: 12px;
    background: var(--gp-surface);
}

.gp-toggle-label {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--gp-text);
    cursor: pointer;
    user-select: none;
}

.gp-toggle-input {
    display: none;
}

.gp-toggle {
    position: relative;
    width: 44px;
    height: 24px;
    background: var(--gp-surface2);
    border: 1px solid var(--gp-border);
    border-radius: 12px;
    transition: all 0.3s ease;
}

.gp-toggle::after {
    content: '';
    position: absolute;
    top: 2px;
    left: 2px;
    width: 18px;
    height: 18px;
    background: #fff;
    border-radius: 50%;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.gp-toggle-input:checked+.gp-toggle {
    background: var(--gp-accent);
    border-color: var(--gp-accent);
}

.gp-toggle-input:checked+.gp-toggle::after {
    transform: translateX(20px);
}

.gp-modifier-desc {
    font-size: 0.75em;
    color: var(--gp-text-sub);
    padding-left: calc(44px + 0.75rem);
    /* Align with text */
    line-height: 1.3;
}

/* Start button */
.gp-start-btn {
    align-self: center;
    padding: 0.85rem 2.5rem;
    border-radius: 12px;
    border: none;
    background: linear-gradient(135deg, var(--gp-accent), #3b82f6);
    color: #fff;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.03em;
    cursor: pointer;
    box-shadow: 0 4px 18px rgba(var(--gp-accent-rgb), 0.35);
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.gp-start-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 28px rgba(var(--gp-accent-rgb), 0.45);
    filter: brightness(1.08);
}

.gp-start-btn:active {
    transform: translateY(0);
}

.gp-start-btn svg {
    transition: transform 0.2s;
}

.gp-start-btn:hover svg {
    transform: translateX(3px);
}

/* ===== GAME AREA ===== */
#gp-game {
    display: none;
    flex-direction: column;
    gap: 1rem;
    animation: gpFadeIn 0.3s ease;
}

/* ===== HUD ===== */
.gp-hud {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    flex-wrap: nowrap;
    overflow-x: auto;
    scrollbar-width: none;
}

.gp-hud::-webkit-scrollbar {
    display: none;
}

.gp-hud-pill {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--gp-surface);
    border: 1px solid var(--gp-border);
    border-radius: 10px;
    padding: 0.5rem 0.8rem;
    min-width: 0;
    flex: 1;
}

.gp-hud-value {
    font-size: 1.4rem;
    font-weight: 700;
    color: var(--gp-text);
    line-height: 1;
}

.gp-hud-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gp-text-sub);
    margin-top: 0.2rem;
}

/* Delta indicator */
#gp-delta-display {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--gp-surface);
    border: 1px solid var(--gp-border);
    border-radius: 10px;
    padding: 0.5rem 0.8rem;
    min-width: 0;
    flex: 1;
    transition: border-color 0.3s, background 0.3s;
}

#gp-delta-display.ahead {
    border-color: rgba(var(--gp-green-rgb), 0.5);
    background: rgba(var(--gp-green-rgb), 0.06);
}

#gp-delta-display.behind {
    border-color: rgba(var(--gp-red-rgb), 0.5);
    background: rgba(var(--gp-red-rgb), 0.06);
}

#gp-delta-value {
    font-size: 1.4rem;
    font-weight: 800;
    line-height: 1;
    transition: color 0.3s;
}

#gp-delta-display.ahead #gp-delta-value {
    color: var(--gp-green);
}

#gp-delta-display.behind #gp-delta-value {
    color: var(--gp-red);
}

#gp-delta-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gp-text-sub);
    margin-top: 0.2rem;
}

/* Stop button in HUD */
.gp-stop-btn {
    background: var(--gp-surface);
    border: 1px solid var(--gp-border);
    border-radius: 100px;
    /* Modern Pill */
    color: var(--gp-text-sub);
    padding: 0.5rem 1.25rem;
    font-size: 0.8rem;
    font-weight: 700;
    letter-spacing: 0.02em;
    cursor: pointer;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 0.4rem;
    box-shadow: 0 2px 4px var(--gp-shadow);
}

.gp-stop-btn:hover {
    border-color: var(--gp-red);
    color: var(--gp-red);
    background: rgba(var(--gp-red-rgb), 0.04);
    transform: translateY(-1px);
    box-shadow: 0 4px 8px rgba(var(--gp-red-rgb), 0.1);
}

.gp-stop-btn svg {
    width: 14px;
    height: 14px;
    stroke-width: 2.5;
}

/* ===== FLOW BADGE ===== */
.gp-flow-badge {
    align-self: center;
    display: flex;
    align-items: center;
    gap: 0.4rem;
    background: var(--gp-flow-bg);
    border: 1px solid var(--gp-flow-border);
    border-radius: 100px;
    padding: 0.4rem 1rem;
    color: var(--gp-flow-color);
    font-size: 0.85rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    opacity: 0;
    transform: scale(0.8) translateY(-4px);
    transition: opacity 0.4s ease, transform 0.4s ease;
    pointer-events: none;
}

.gp-flow-badge.visible {
    opacity: 1;
    transform: scale(1) translateY(0);
}

.gp-flow-badge .flow-pulse {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gp-flow-color);
    animation: gpFlowPulse 1.2s ease-in-out infinite;
}

@keyframes gpFlowPulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.4;
        transform: scale(0.5);
    }
}

/* ===== TEXT DISPLAY AREA ===== */
.gp-text-wrapper {
    position: relative;
    overflow: hidden;
    /* Clip carets to display area */
    border-radius: 12px;
}

#gp-text-display {
    font-family: 'Roboto', sans-serif;
    font-size: 1.8rem;
    line-height: 1.5;
    word-break: break-word;
    user-select: none;
    position: relative;
    outline: none;
    height: 9.1rem;
    /* exactly 3 lines (8.1rem) + padding (1rem) */
    overflow: hidden;
    color: var(--gp-text-sub);
    letter-spacing: 0.05em;
    border-radius: 12px;
    outline: 2px solid transparent;
    /* Replaces border to prevent layout shifts */
    outline-offset: -2px;
    padding: 0.5rem 1.2rem;
    transition: box-shadow 0.4s ease, outline-color 0.4s ease;
}

#gp-text-display.gp-ahead-glow {
    box-shadow: var(--gp-ahead-shadow);
    outline-color: rgba(var(--gp-green-rgb), 0.3);
}

#gp-text-display.gp-behind-glow {
    box-shadow: var(--gp-behind-shadow);
    outline-color: rgba(var(--gp-red-rgb), 0.3);
}

#gp-text-display.gp-flow-glow {
    box-shadow: 0 0 28px rgba(234, 179, 8, 0.2);
}

/* Word/char spans */
.gp-word {
    display: inline-block;
    margin-right: 0.6em;
    border-bottom: 2px solid transparent;
    transition: border-color 0.2s;
}

.gp-char {
    display: inline-block;
    transition: color 0.08s ease;
    vertical-align: top;
}

.gp-char {
    display: inline-block;
    border-bottom: 2px solid transparent;
    transition: color 0.07s ease;
    vertical-align: top;
}

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

.gp-char.incorrect {
    color: var(--gp-red);
}

.gp-char.incorrect.skipped {
    border-bottom: 2px solid var(--gp-red);
}

.gp-char.extra {
    opacity: 0.6;
    color: var(--gp-red);
}

/* ===== PLAYER CARET (Synced with Index) ===== */
#gp-player-caret {
    position: absolute;
    width: 4px;
    /* Sync with Index */
    height: 2.4rem;
    /* Sync with Index */
    background: var(--gp-accent);
    box-shadow: 0 0 8px var(--gp-accent);
    border-radius: 3px;
    pointer-events: none;
    z-index: 20;
    top: 0;
    left: 0;
    /* Restored to 0.08s for index-like feel */
    transition: transform 0.08s cubic-bezier(0.25, 0.1, 0.25, 1), opacity 0.1s ease;
    animation: gpCaretFlash 1s infinite;
    will-change: transform;
}

#gp-player-caret.no-blink {
    animation: none;
    opacity: 1;
}

@keyframes gpCaretFlash {

    0%,
    100% {
        opacity: 1;
    }

    50% {
        opacity: 0;
    }
}

#gp-player-caret.gp-locked {
    background: #ef4444;
    /* Red */
    box-shadow: 0 0 10px rgba(239, 68, 68, 0.6);
}

@keyframes gpErrorShake {

    0%,
    100% {
        transform: translateX(0);
    }

    20% {
        transform: translateX(-4px);
    }

    40% {
        transform: translateX(4px);
    }

    60% {
        transform: translateX(-4px);
    }

    80% {
        transform: translateX(4px);
    }
}

.gp-error-shake {
    animation: gpErrorShake 0.3s cubic-bezier(.36, .07, .19, .97) both;
}

/* ===== GHOST CARET ===== */
#gp-ghost-caret {
    position: absolute;
    width: 2.5px;
    height: 2.2rem;
    background: var(--gp-ghost);
    box-shadow: 0 0 12px var(--gp-ghost-glow), 0 0 4px var(--gp-ghost);
    border-radius: 3px;
    pointer-events: none;
    z-index: 15;
    top: 0;
    left: 0;
    will-change: transform;
    /* Ghost uses CSS transitions for smooth sub-frame interpolation */
    transition: transform 0.06s linear, background-color 0.3s, box-shadow 0.3s;
}

#gp-ghost-caret.danger {
    background: #ff3e3e !important;
    box-shadow: 0 0 15px #ff3e3e, 0 0 25px #ffcc00 !important;
    animation: gpDangerFlash 0.5s infinite alternate !important;
}

@keyframes gpDangerFlash {
    0% {
        background: #ff3e3e;
        box-shadow: 0 0 15px #ff3e3e;
    }

    100% {
        background: #ffcc00;
        box-shadow: 0 0 25px #ffcc00;
    }
}


/* Ghost caret label */
#gp-ghost-caret::before {
    content: 'GHOST';
    position: absolute;
    top: -18px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 0.5rem;
    font-weight: 800;
    letter-spacing: 0.1em;
    color: var(--gp-ghost);
    white-space: nowrap;
    opacity: 0.8;
}

/* ===== HIDDEN INPUT ===== */
#gp-input {
    position: absolute;
    opacity: 0;
    top: 0;
    left: 0;
    width: 1px;
    height: 1px;
    pointer-events: none;
}

/* ===== RESULT MODAL ===== */
#gp-result-modal {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    backdrop-filter: blur(6px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
    animation: gpFadeIn 0.2s ease;
}

#gp-result-modal.visible {
    display: flex;
}

.gp-result-box {
    background: var(--gp-bg);
    border: 1px solid var(--gp-border);
    border-radius: 20px;
    padding: 2rem 2.5rem;
    max-width: 480px;
    width: calc(100% - 2rem);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: gpSlideUp 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes gpSlideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }

    to {
        transform: translateY(0);
        opacity: 1;
    }
}

.gp-result-header {
    text-align: center;
}

.gp-result-verdict {
    font-size: 1.6rem;
    font-weight: 800;
    margin-bottom: 0.5rem;
}

.gp-result-verdict.won {
    color: var(--gp-green);
}

.gp-result-verdict.lost {
    color: var(--gp-red);
}

.gp-result-verdict.tie {
    color: var(--gp-accent);
}

.gp-result-verdict.done {
    color: var(--gp-text);
}

.gp-result-subtitle {
    font-size: 0.9rem;
    color: var(--gp-text-sub);
}

.gp-result-stats {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 0.75rem;
}

.gp-result-stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: var(--gp-surface);
    border-radius: 10px;
    padding: 0.75rem 0.5rem;
}

.gp-result-stat-value {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--gp-text);
    line-height: 1;
}

.gp-result-stat-label {
    font-size: 0.68rem;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--gp-text-sub);
    margin-top: 0.3rem;
}

/* Ghost vs Player comparison */
.gp-race-comparison {
    display: flex;
    align-items: center;
    gap: 1rem;
    background: var(--gp-surface);
    border-radius: 12px;
    padding: 0.8rem 1rem;
}

.gp-racer {
    flex: 1;
    text-align: center;
}

.gp-racer-wpm {
    font-size: 1.8rem;
    font-weight: 800;
    line-height: 1;
}

.gp-racer-wpm.player {
    color: var(--gp-accent);
}

.gp-racer-wpm.ghost {
    color: var(--gp-ghost);
}

.gp-racer-label {
    font-size: 0.7rem;
    color: var(--gp-text-sub);
    text-transform: uppercase;
    letter-spacing: 0.07em;
    margin-top: 0.25rem;
}

.gp-vs {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--gp-text-sub);
    opacity: 0.5;
}

/* Result footer buttons */
.gp-result-footer {
    display: flex;
    gap: 0.75rem;
    justify-content: center;
}

.gp-btn {
    padding: 0.65rem 1.5rem;
    border-radius: 10px;
    font-size: 0.9rem;
    font-weight: 700;
    cursor: pointer;
    border: none;
    transition: all 0.2s;
}

.gp-btn.primary {
    background: linear-gradient(135deg, var(--gp-accent), #3b82f6);
    color: #fff;
    box-shadow: 0 4px 14px rgba(var(--gp-accent-rgb), 0.3);
}

.gp-btn.primary:hover {
    filter: brightness(1.1);
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(var(--gp-accent-rgb), 0.4);
}

.gp-btn.secondary {
    background: var(--gp-surface);
    color: var(--gp-text);
    border: 1px solid var(--gp-border);
}

.gp-btn.secondary:hover {
    background: var(--gp-surface2);
    transform: translateY(-1px);
}

/* ===== FAIL OVERLAY ===== */
#gp-fail-overlay {
    display: none;
    position: absolute;
    inset: 0;
    background: rgba(var(--gp-red-rgb), 0.06);
    border: 2px solid rgba(var(--gp-red-rgb), 0.3);
    border-radius: 12px;
    align-items: center;
    justify-content: center;
    z-index: 30;
    backdrop-filter: blur(2px);
}

#gp-fail-overlay.visible {
    display: flex;
}

.gp-fail-msg {
    font-size: 1.1rem;
    font-weight: 800;
    color: var(--gp-red);
    text-align: center;
    animation: gpShake 0.4s ease;
}

@keyframes gpShake {

    0%,
    100% {
        transform: translateX(0);
    }

    25% {
        transform: translateX(-4px);
    }

    75% {
        transform: translateX(4px);
    }
}

/* ===== FOOTER ===== */
.gp-footer {
    text-align: center;
    padding-top: 1.25rem;
    font-size: 0.78rem;
    color: var(--gp-text-sub);
    border-top: 1px solid var(--gp-border);
    margin-top: auto;
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    flex-wrap: wrap;
}

.gp-footer a {
    color: inherit;
    text-decoration: none;
    transition: color 0.2s;
}

.gp-footer a:hover {
    color: var(--gp-text);
}

/* ===== ANIMATIONS ===== */
@keyframes gpFadeIn {
    from {
        opacity: 0;
        transform: translateY(6px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== HINT (keyboard shortcut bar) ===== */
.gp-hint-bar {
    text-align: center;
    font-size: 0.72rem;
    color: var(--gp-text-sub);
    opacity: 0.7;
}

.gp-key {
    display: inline-block;
    background: var(--gp-surface2);
    border: 1px solid var(--gp-border);
    border-radius: 4px;
    padding: 0.1rem 0.35rem;
    font-size: 0.68rem;
    font-weight: 600;
    margin: 0 0.1rem;
}

/* ===== MOBILE ===== */
@media (max-width: 600px) {
    #gp-app {
        padding: 0 0 1rem;
    }

    .gp-header-inner {
        padding: 12px;
    }

    .gp-main {
        padding: 0 1rem;
    }

    .gp-variant-grid {
        grid-template-columns: 1fr;
        gap: 0.5rem;
    }

    .gp-variant-card {
        display: flex;
        align-items: center;
        gap: 0.75rem;
        text-align: left;
        padding: 0.8rem 1rem;
    }

    .gp-variant-icon {
        font-size: 1.3rem;
        flex-shrink: 0;
    }

    #gp-text-display {
        font-size: 1.4rem;
        height: 7.3rem;
        /* exactly 3 lines (6.3rem) + padding (1rem) */
    }

    #gp-player-caret,
    #gp-ghost-caret {
        height: 1.7rem;
    }

    .gp-hud {
        gap: 0.3rem;
    }

    .gp-hud-pill,
    #gp-delta-display {
        padding: 0.3rem 0.2rem;
        min-width: 0;
        flex: 1;
    }

    .gp-hud-value,
    #gp-delta-value {
        font-size: 1rem;
    }

    .gp-hud-label,
    #gp-delta-label {
        font-size: 0.5rem;
        letter-spacing: 0.02em;
        text-align: center;
    }

    .gp-stop-btn {
        padding: 0.35rem 0.45rem;
        font-size: 0.75rem;
        flex-shrink: 0;
    }

    .gp-stop-btn svg {
        width: 12px;
        height: 12px;
    }

    .gp-result-stats {
        grid-template-columns: 1fr 1fr;
    }

    .gp-result-box {
        padding: 1.5rem 1.25rem;
    }

    .gp-result-footer {
        flex-direction: column;
    }

    .gp-btn {
        width: 100%;
        justify-content: center;
    }

    .gp-start-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 400px) {
    .gp-hud {
        justify-content: center;
    }
}

@media (max-width: 420px) {
    .lb-global-header span {
        font-size: 1.1rem !important;
    }
}

/* FOUC Prevention: reveal body after CSS loads */
body {
    opacity: 1 !important;
    transition: opacity 0.15s ease-in;
}