/* =============================================
   NEON VOID — Style Principal
   ============================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --cyan:    #00ffff;
    --magenta: #ff00ff;
    --orange:  #ff6600;
    --green:   #00ff88;
    --red:     #ff0044;
    --yellow:  #ffdd00;
    --blue:    #0088ff;
    --lime:    #aaff00;
    --pink:    #ff3366;
    --dark:    #000510;
    --panel-bg: rgba(0, 5, 16, 0.90);
    --font-main: 'Orbitron', monospace;
    --font-mono: 'Share Tech Mono', monospace;
}

html, body {
    width: 100%; height: 100%;
    overflow: hidden;
    background: var(--dark);
    font-family: var(--font-main);
    color: var(--cyan);
    cursor: crosshair;
    user-select: none;
}

#gameCanvas {
    position: fixed;
    top: 0; left: 0;
    display: block;
    width: 100%; height: 100%;
}

#ui {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    pointer-events: none;
}

.hidden { display: none !important; }

/* =============================================
   HUD
   ============================================= */
#hud {
    position: absolute;
    top: 0; left: 0; right: 0;
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    padding: 14px 28px 10px;
    background: linear-gradient(to bottom, rgba(0,5,16,0.85) 60%, transparent);
    pointer-events: none;
}

.hud-label {
    font-size: 10px;
    letter-spacing: 0.25em;
    color: rgba(0,255,255,0.45);
    margin-bottom: 2px;
}

.hud-value {
    font-size: 22px;
    font-weight: 700;
    color: var(--cyan);
    text-shadow: 0 0 12px var(--cyan), 0 0 24px rgba(0,255,255,0.4);
    letter-spacing: 0.08em;
}

.wave-num {
    color: var(--magenta);
    text-shadow: 0 0 12px var(--magenta), 0 0 24px rgba(255,0,255,0.4);
}

.coins-val {
    color: var(--yellow);
    text-shadow: 0 0 12px var(--yellow), 0 0 24px rgba(255,221,0,0.4);
    font-size: 17px;
}

#hud-left  { text-align: left; }
#hud-center { text-align: center; }
#hud-right { text-align: right; }

#hud-top-right {
    display: flex;
    gap: 22px;
    align-items: flex-start;
    justify-content: flex-end;
}

.hud-right-block { text-align: right; }

#lives-display {
    display: flex;
    gap: 6px;
    justify-content: flex-end;
    margin-top: 2px;
}

.life-icon {
    font-size: 18px;
    color: var(--cyan);
    text-shadow: 0 0 10px var(--cyan);
    animation: lifeGlow 2s ease-in-out infinite alternate;
}

@keyframes lifeGlow {
    from { opacity: 0.7; text-shadow: 0 0 6px var(--cyan); }
    to   { opacity: 1.0; text-shadow: 0 0 14px var(--cyan), 0 0 28px rgba(0,255,255,0.5); }
}

#powerup-bar {
    position: absolute;
    bottom: -40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    gap: 10px;
    justify-content: center;
    flex-wrap: wrap;
}

.pu-active {
    font-family: var(--font-mono);
    font-size: 12px;
    padding: 3px 10px;
    border-radius: 20px;
    border: 1px solid;
    letter-spacing: 0.05em;
    animation: puPulse 1.5s ease-in-out infinite alternate;
}

@keyframes puPulse {
    from { opacity: 0.8; }
    to   { opacity: 1.0; }
}

.pu-active.shield    { color: var(--blue);    border-color: var(--blue);    background: rgba(0,136,255,0.12);  box-shadow: 0 0 10px rgba(0,136,255,0.35); }
.pu-active.rapid     { color: var(--yellow);  border-color: var(--yellow);  background: rgba(255,221,0,0.10);  box-shadow: 0 0 10px rgba(255,221,0,0.35); }
.pu-active.triple    { color: var(--green);   border-color: var(--green);   background: rgba(0,255,136,0.10);  box-shadow: 0 0 10px rgba(0,255,136,0.35); }
.pu-active.companion { color: var(--orange);  border-color: var(--orange);  background: rgba(255,102,0,0.10);  box-shadow: 0 0 10px rgba(255,102,0,0.35); }
.pu-active.speed     { color: var(--lime);    border-color: var(--lime);    background: rgba(170,255,0,0.10);  box-shadow: 0 0 10px rgba(170,255,0,0.35); }

/* =============================================
   MENU PRINCIPAL
   ============================================= */
#menu {
    position: absolute;
    inset: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: all;
}

.menu-content {
    position: relative;
    z-index: 2;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 22px;
    padding: 44px 56px;
    background: var(--panel-bg);
    border: 1px solid rgba(0,255,255,0.15);
    box-shadow: 0 0 60px rgba(0,255,255,0.06), inset 0 0 60px rgba(0,0,0,0.5);
    backdrop-filter: blur(6px);
    animation: menuFadeIn 0.5s ease;
    max-height: 95vh;
    overflow-y: auto;
}

@keyframes menuFadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.title-block { line-height: 1; }

.title-line {
    font-size: clamp(56px, 9vw, 88px);
    font-weight: 900;
    letter-spacing: 0.15em;
    color: var(--cyan);
    text-shadow: 0 0 20px var(--cyan), 0 0 50px rgba(0,255,255,0.5), 0 0 100px rgba(0,255,255,0.2);
    animation: titleFlicker 4s ease-in-out infinite;
}

.title-line.accent {
    color: transparent;
    -webkit-text-stroke: 2px var(--cyan);
    text-shadow: 0 0 30px var(--cyan), 0 0 60px rgba(0,255,255,0.4);
    margin-top: -10px;
}

@keyframes titleFlicker {
    0%, 92%, 96%, 100% { opacity: 1; }
    93%, 95%            { opacity: 0.85; }
}

.title-sub {
    font-size: 11px;
    letter-spacing: 0.4em;
    color: rgba(0,255,255,0.4);
    margin-top: 8px;
}

.hi-score-block {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--yellow);
    letter-spacing: 0.08em;
    text-shadow: 0 0 10px var(--yellow);
}
.hi-score-block span { font-weight: 700; color: #fff; }

/* ── Difficulté ── */
.diff-section { width: 100%; }

.diff-btns {
    display: flex;
    gap: 10px;
    justify-content: center;
}

.diff-btn {
    font-family: var(--font-main);
    background: transparent;
    border: 1px solid rgba(0,255,255,0.2);
    color: rgba(0,255,255,0.4);
    padding: 10px 18px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
    transition: all 0.2s ease;
    min-width: 110px;
    pointer-events: all;
}

.diff-btn:hover {
    border-color: rgba(0,255,255,0.5);
    color: var(--cyan);
    background: rgba(0,255,255,0.05);
}

.diff-btn.active {
    border-color: var(--cyan);
    color: var(--cyan);
    background: rgba(0,255,255,0.10);
    box-shadow: 0 0 18px rgba(0,255,255,0.25);
}

.diff-btn[data-diff="easy"].active   { border-color: var(--green);  color: var(--green);  background: rgba(0,255,136,0.10); box-shadow: 0 0 18px rgba(0,255,136,0.25); }
.diff-btn[data-diff="hard"].active   { border-color: var(--red);    color: var(--red);    background: rgba(255,0,68,0.10);  box-shadow: 0 0 18px rgba(255,0,68,0.25); }

.diff-label {
    font-size: 13px;
    font-weight: 700;
    letter-spacing: 0.2em;
}

.diff-sub {
    font-family: var(--font-mono);
    font-size: 10px;
    opacity: 0.7;
    letter-spacing: 0.04em;
}

/* ── Boutons menu ── */
.menu-actions {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 12px;
    width: 100%;
}

.btn-neon {
    font-family: var(--font-main);
    font-size: 16px;
    font-weight: 700;
    letter-spacing: 0.3em;
    padding: 14px 48px;
    background: transparent;
    color: var(--cyan);
    border: 2px solid var(--cyan);
    cursor: pointer;
    position: relative;
    overflow: hidden;
    transition: all 0.2s ease;
    text-transform: uppercase;
    box-shadow: 0 0 16px rgba(0,255,255,0.25), inset 0 0 16px rgba(0,255,255,0.05);
    pointer-events: all;
    width: 100%;
}

.btn-neon::before {
    content: '';
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(90deg, transparent, rgba(0,255,255,0.15), transparent);
    transition: left 0.4s ease;
}

.btn-neon:hover { background: rgba(0,255,255,0.1); box-shadow: 0 0 30px rgba(0,255,255,0.5), inset 0 0 30px rgba(0,255,255,0.1); transform: scale(1.02); }
.btn-neon:hover::before { left: 100%; }
.btn-neon:active { transform: scale(0.97); }

.btn-ghost {
    font-family: var(--font-main);
    font-size: 13px;
    letter-spacing: 0.25em;
    padding: 10px 36px;
    background: transparent;
    color: rgba(0,255,255,0.4);
    border: 1px solid rgba(0,255,255,0.2);
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
    pointer-events: all;
}
.btn-ghost:hover { color: var(--cyan); border-color: rgba(0,255,255,0.5); background: rgba(0,255,255,0.05); }

.shop-btn { width: 100%; letter-spacing: 0.2em; }

/* Controls */
.controls-block { display: flex; flex-direction: column; gap: 5px; }
.ctrl-row { font-family: var(--font-mono); font-size: 12px; color: rgba(0,255,255,0.45); letter-spacing: 0.04em; }
.key { display: inline-block; padding: 1px 7px; border: 1px solid rgba(0,255,255,0.35); border-radius: 4px; color: var(--cyan); font-size: 12px; background: rgba(0,255,255,0.06); }

/* Power-up legend */
.powerup-legend { display: flex; gap: 8px; flex-wrap: wrap; justify-content: center; }
.pu-info { font-family: var(--font-mono); font-size: 11px; padding: 3px 9px; border-radius: 12px; border: 1px solid; }
.pu-info.shield    { color: var(--blue);   border-color: rgba(0,136,255,0.4); }
.pu-info.rapid     { color: var(--yellow); border-color: rgba(255,221,0,0.4); }
.pu-info.triple    { color: var(--green);  border-color: rgba(0,255,136,0.4); }
.pu-info.nova      { color: var(--magenta);border-color: rgba(255,0,255,0.4); }
.pu-info.companion { color: var(--orange); border-color: rgba(255,102,0,0.4); }
.pu-info.speed     { color: var(--lime);   border-color: rgba(170,255,0,0.4); }
.pu-info.life      { color: var(--pink);   border-color: rgba(255,51,102,0.4); }

/* =============================================
   BOUTIQUE
   ============================================= */
.shop-overlay {
    position: absolute;
    inset: 0;
    background: var(--panel-bg);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding: 30px 40px 40px;
    pointer-events: all;
    overflow-y: auto;
    animation: menuFadeIn 0.3s ease;
}

.shop-header {
    width: 100%;
    max-width: 900px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 6px;
}

.shop-title {
    font-size: 28px;
    font-weight: 900;
    letter-spacing: 0.2em;
    color: var(--yellow);
    text-shadow: 0 0 20px var(--yellow);
}

.shop-coins-hdr {
    font-family: var(--font-mono);
    font-size: 16px;
    color: var(--yellow);
    text-shadow: 0 0 12px var(--yellow);
    letter-spacing: 0.1em;
}

.shop-subtitle {
    font-family: var(--font-mono);
    font-size: 12px;
    color: rgba(0,255,255,0.4);
    letter-spacing: 0.12em;
    margin-bottom: 28px;
}

#skin-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 18px;
    width: 100%;
    max-width: 900px;
}

.skin-card {
    border: 1px solid rgba(255,255,255,0.12);
    background: rgba(0,5,16,0.6);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 22px 16px 18px;
    transition: all 0.2s ease;
    cursor: default;
}

.skin-card:hover { background: rgba(0,20,40,0.8); }

.skin-card.equipped {
    border-color: var(--cyan);
    box-shadow: 0 0 20px rgba(0,255,255,0.2);
}

.skin-preview {
    width: 64px;
    height: 64px;
}

.skin-name {
    font-size: 14px;
    font-weight: 700;
    letter-spacing: 0.18em;
}

.skin-desc {
    font-family: var(--font-mono);
    font-size: 11px;
    color: rgba(255,255,255,0.45);
    text-align: center;
    letter-spacing: 0.04em;
}

.skin-price {
    font-family: var(--font-mono);
    font-size: 13px;
    color: var(--yellow);
    letter-spacing: 0.1em;
}

.skin-price.free { color: var(--green); }

.skin-btn {
    font-family: var(--font-main);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: 0.2em;
    padding: 7px 18px;
    border: 1px solid;
    background: transparent;
    cursor: pointer;
    transition: all 0.2s ease;
    text-transform: uppercase;
}

.skin-btn.buy    { color: var(--yellow); border-color: var(--yellow); }
.skin-btn.buy:hover { background: rgba(255,221,0,0.12); box-shadow: 0 0 12px rgba(255,221,0,0.3); }
.skin-btn.buy:disabled { opacity: 0.35; cursor: not-allowed; }
.skin-btn.equip  { color: var(--cyan);   border-color: var(--cyan); }
.skin-btn.equip:hover { background: rgba(0,255,255,0.1); box-shadow: 0 0 12px rgba(0,255,255,0.3); }
.skin-btn.equipped-label { color: rgba(0,255,255,0.5); border-color: rgba(0,255,255,0.3); cursor: default; font-size: 10px; }

/* =============================================
   OVERLAYS (Game Over / Pause)
   ============================================= */
.overlay-panel {
    position: absolute;
    top: 50%; left: 50%;
    transform: translate(-50%, -50%);
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    padding: 48px 68px;
    background: var(--panel-bg);
    border: 1px solid rgba(0,255,255,0.15);
    box-shadow: 0 0 80px rgba(0,0,0,0.8), 0 0 40px rgba(0,255,255,0.05);
    backdrop-filter: blur(8px);
    animation: overlayIn 0.3s ease;
    pointer-events: all;
    min-width: 320px;
}

@keyframes overlayIn {
    from { opacity: 0; transform: translate(-50%, -46%); }
    to   { opacity: 1; transform: translate(-50%, -50%); }
}

.overlay-title {
    font-size: 42px;
    font-weight: 900;
    letter-spacing: 0.2em;
    color: var(--cyan);
    text-shadow: 0 0 20px var(--cyan), 0 0 50px rgba(0,255,255,0.4);
}

.overlay-title.red-glow {
    color: var(--red);
    text-shadow: 0 0 20px var(--red), 0 0 50px rgba(255,0,68,0.4);
    animation: redPulse 0.8s ease-in-out infinite alternate;
}

@keyframes redPulse {
    from { text-shadow: 0 0 20px var(--red), 0 0 50px rgba(255,0,68,0.3); }
    to   { text-shadow: 0 0 30px var(--red), 0 0 70px rgba(255,0,68,0.5); }
}

.overlay-score {
    font-family: var(--font-mono);
    font-size: 16px;
    color: rgba(255,255,255,0.7);
    letter-spacing: 0.08em;
}
.overlay-score span { color: var(--yellow); font-weight: 700; text-shadow: 0 0 12px var(--yellow); }

.record-msg {
    color: var(--yellow);
    font-size: 13px;
    letter-spacing: 0.25em;
    text-shadow: 0 0 16px var(--yellow);
    animation: recordPulse 1s ease-in-out infinite alternate;
}
@keyframes recordPulse { from { opacity: 0.7; } to { opacity: 1; } }

::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(0,255,255,0.2); border-radius: 2px; }