/* ==================== أساسيات ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-deep: #0a0e27;
    --bg-mid: #16213e;
    --bg-light: #0f3460;
    --accent: #ff6b35;
    --accent-2: #f7c948;
    --accent-3: #06d6a0;
    --player-1: #4ade80;
    --player-2: #f87171;
    --text: #f1f5f9;
    --text-dim: #94a3b8;
    --glass: rgba(255, 255, 255, 0.08);
    --glass-border: rgba(255, 255, 255, 0.15);
    --shadow: 0 10px 40px rgba(0, 0, 0, 0.5);
}

html, body {
    height: 100%;
    overflow: hidden;
}

body {
    background: radial-gradient(ellipse at top, var(--bg-light) 0%, var(--bg-mid) 40%, var(--bg-deep) 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    color: var(--text);
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    -webkit-user-select: none;
}

/* ==================== خلفية النجوم المتحركة ==================== */
#bg-stars {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background-image:
        radial-gradient(2px 2px at 20% 30%, rgba(255,255,255,0.8), transparent),
        radial-gradient(1px 1px at 60% 70%, rgba(255,255,255,0.6), transparent),
        radial-gradient(1.5px 1.5px at 80% 10%, rgba(255,255,255,0.7), transparent),
        radial-gradient(1px 1px at 30% 80%, rgba(255,255,255,0.5), transparent),
        radial-gradient(2px 2px at 90% 50%, rgba(255,255,255,0.7), transparent),
        radial-gradient(1px 1px at 10% 60%, rgba(255,255,255,0.4), transparent),
        radial-gradient(1.5px 1.5px at 50% 20%, rgba(255,255,255,0.6), transparent),
        radial-gradient(1px 1px at 70% 90%, rgba(255,255,255,0.5), transparent);
    background-size: 600px 600px;
    animation: stars-drift 60s linear infinite;
}

@keyframes stars-drift {
    from { background-position: 0 0; }
    to   { background-position: 600px 600px; }
}

/* هالات ضوئية متحركة في الخلفية */
#bg-stars::before, #bg-stars::after {
    content: '';
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.25;
}
#bg-stars::before {
    width: 400px; height: 400px;
    background: var(--accent);
    top: -100px; left: -100px;
    animation: blob-float 18s ease-in-out infinite;
}
#bg-stars::after {
    width: 350px; height: 350px;
    background: var(--accent-3);
    bottom: -80px; right: -80px;
    animation: blob-float 22s ease-in-out infinite reverse;
}
@keyframes blob-float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    50%      { transform: translate(80px, 60px) scale(1.15); }
}

/* ==================== الشاشات ==================== */
.screen {
    position: fixed;
    inset: 0;
    z-index: 1;
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
}
.screen.active {
    display: flex;
    animation: screen-in 0.4s ease;
}
@keyframes screen-in {
    from { opacity: 0; transform: scale(0.98); }
    to   { opacity: 1; transform: scale(1); }
}

/* ==================== بطاقة القائمة ==================== */
.menu-card {
    background: var(--glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    padding: 40px 48px;
    box-shadow: var(--shadow), inset 0 1px 0 rgba(255,255,255,0.1);
    width: min(540px, 92vw);
    max-height: 92vh;
    overflow-y: auto;
    animation: card-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1);
}
@keyframes card-pop {
    from { transform: scale(0.85) translateY(20px); opacity: 0; }
    to   { transform: scale(1) translateY(0); opacity: 1; }
}

.game-title {
    font-size: clamp(2.2rem, 6vw, 3.4rem);
    font-weight: 900;
    text-align: center;
    letter-spacing: 2px;
    margin-bottom: 4px;
    background: linear-gradient(135deg, #fff 0%, var(--accent-2) 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 4px 20px rgba(0,0,0,0.3);
}
.title-bomb {
    display: inline-block;
    -webkit-text-fill-color: initial;
    animation: bomb-wiggle 2s ease-in-out infinite;
}
@keyframes bomb-wiggle {
    0%, 100% { transform: rotate(-8deg); }
    50%      { transform: rotate(8deg); }
}
.title-accent {
    background: linear-gradient(135deg, var(--accent) 0%, #ff2e63 100%);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}
.game-subtitle {
    text-align: center;
    color: var(--text-dim);
    font-size: 0.95rem;
    margin-bottom: 32px;
}

/* ==================== أقسام القائمة ==================== */
.menu-section {
    margin-bottom: 24px;
}
.menu-section:last-of-type {
    margin-bottom: 32px;
}
.menu-label {
    display: block;
    color: var(--text-dim);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 10px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.choice-group {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}
.choice-btn {
    flex: 1;
    min-width: 100px;
    padding: 12px 16px;
    border: 1.5px solid var(--glass-border);
    border-radius: 12px;
    background: rgba(255,255,255,0.04);
    color: var(--text);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}
.choice-btn:hover {
    background: rgba(255,255,255,0.1);
    border-color: rgba(255,255,255,0.3);
    transform: translateY(-2px);
}
.choice-btn.active {
    background: linear-gradient(135deg, var(--accent) 0%, #ff2e63 100%);
    border-color: transparent;
    box-shadow: 0 4px 15px rgba(255, 107, 53, 0.4);
}

.menu-section.hidden {
    display: none;
}

/* ==================== الأزرار ==================== */
.btn-primary {
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--accent-3) 0%, #0891b2 100%);
    color: #fff;
    font-size: 1.2rem;
    font-weight: 800;
    cursor: pointer;
    transition: all 0.2s ease;
    box-shadow: 0 6px 20px rgba(6, 214, 160, 0.4);
    font-family: inherit;
    letter-spacing: 1px;
}
.btn-primary:hover {
    transform: translateY(-2px) scale(1.02);
    box-shadow: 0 10px 30px rgba(6, 214, 160, 0.6);
}
.btn-primary:active {
    transform: translateY(0) scale(0.99);
}

.btn-secondary {
    width: 100%;
    padding: 12px;
    border: 1.5px solid var(--glass-border);
    border-radius: 12px;
    background: transparent;
    color: var(--text);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
    margin-top: 10px;
}
.btn-secondary:hover {
    background: rgba(255,255,255,0.08);
}

.menu-footer {
    display: flex;
    justify-content: center;
    gap: 24px;
    margin-top: 24px;
}
.btn-link {
    background: none;
    border: none;
    color: var(--text-dim);
    font-size: 0.9rem;
    cursor: pointer;
    transition: color 0.2s;
    font-family: inherit;
    padding: 4px 8px;
}
.btn-link:hover {
    color: var(--accent-2);
}

/* ==================== شاشة المساعدة ==================== */
.help-card {
    width: min(620px, 92vw);
}
.help-card h2 {
    font-size: 1.8rem;
    margin-bottom: 24px;
    text-align: center;
    color: var(--accent-2);
}
.help-content {
    margin-bottom: 28px;
}
.help-row {
    padding: 14px 0;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}
.help-row:last-child {
    border-bottom: none;
}
.help-row strong {
    display: block;
    color: var(--accent-2);
    margin-bottom: 6px;
    font-size: 1.05rem;
}
.help-row p {
    color: var(--text);
    line-height: 1.7;
}
kbd {
    display: inline-block;
    background: rgba(255,255,255,0.12);
    border: 1px solid rgba(255,255,255,0.2);
    border-bottom-width: 2px;
    border-radius: 6px;
    padding: 2px 8px;
    margin: 0 2px;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    font-weight: bold;
    min-width: 24px;
    text-align: center;
}

/* ==================== شاشة اللعب ==================== */
#screen-game {
    padding: 0;
}

#hud {
    position: fixed;
    top: 0; left: 0; right: 0;
    z-index: 10;
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    padding: 10px 16px;
    background: linear-gradient(180deg, rgba(10,14,39,0.95) 0%, rgba(10,14,39,0.7) 70%, transparent 100%);
    gap: 12px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
}

.hud-player {
    display: flex;
    flex-direction: column;
    gap: 6px;
    min-width: 0;
    flex: 1;
    max-width: 320px;
}
.hud-player[data-player="2"] {
    text-align: left;
}
.hud-name {
    font-weight: 800;
    font-size: 1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.hud-player[data-player="1"] .hud-name { color: var(--player-1); }
.hud-player[data-player="2"] .hud-name { color: var(--player-2); }

.hud-stats {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}
.hud-stat {
    background: rgba(255,255,255,0.08);
    padding: 4px 10px;
    border-radius: 8px;
    font-size: 0.85rem;
    white-space: nowrap;
}
.hud-stat b {
    color: var(--accent-2);
}

.hud-center {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.round-score {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 800;
    font-size: 0.95rem;
    background: rgba(0,0,0,0.3);
    padding: 6px 14px;
    border-radius: 10px;
    border: 1px solid var(--glass-border);
}
.score-pip {
    width: 10px; height: 10px;
    border-radius: 50%;
    background: rgba(255,255,255,0.15);
    transition: all 0.3s;
}
#pip-p1.score-active { background: var(--player-1); box-shadow: 0 0 12px var(--player-1); }
#pip-p2.score-active { background: var(--player-2); box-shadow: 0 0 12px var(--player-2); }

.hud-buttons {
    display: flex;
    gap: 6px;
}
.btn-icon {
    background: rgba(255,255,255,0.1);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    width: 36px; height: 36px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: all 0.2s;
    display: flex;
    align-items: center;
    justify-content: center;
}
.btn-icon:hover {
    background: rgba(255,255,255,0.2);
    transform: scale(1.05);
}

/* منطقة اللعبة والـ canvas */
#game-area {
    position: relative;
    width: 100vw;
    height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 90px 16px 16px;
}
#game-canvas {
    display: block;
    image-rendering: pixelated;
    border-radius: 12px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.6), 0 0 0 1px rgba(255,255,255,0.08);
    width: 100%;
    height: 100%;
    max-width: calc(100vw - 32px);
    max-height: calc(100vh - 106px);
}

/* ==================== اللافتات والشاشات الفوقية ==================== */
.banner {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.5);
    font-size: clamp(2rem, 6vw, 4rem);
    font-weight: 900;
    color: #fff;
    text-shadow: 0 0 30px var(--accent), 0 4px 8px rgba(0,0,0,0.5);
    opacity: 0;
    pointer-events: none;
    z-index: 20;
    text-align: center;
    white-space: nowrap;
}
.banner.show {
    animation: banner-show 1.8s ease forwards;
}
@keyframes banner-show {
    0%   { opacity: 0; transform: translate(-50%, -50%) scale(0.5); }
    15%  { opacity: 1; transform: translate(-50%, -50%) scale(1.1); }
    25%  { transform: translate(-50%, -50%) scale(1); }
    80%  { opacity: 1; transform: translate(-50%, -50%) scale(1); }
    100% { opacity: 0; transform: translate(-50%, -50%) scale(0.9); }
}

.overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 14, 39, 0.85);
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 30;
}
.overlay.active {
    display: flex;
    animation: screen-in 0.3s ease;
}

.overlay-card {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 20px;
    padding: 40px 48px;
    text-align: center;
    box-shadow: var(--shadow);
    min-width: 320px;
    animation: card-pop 0.4s cubic-bezier(0.34, 1.56, 0.64, 1);
}
.overlay-card h2 {
    font-size: 2.2rem;
    margin-bottom: 12px;
}
.overlay-sub {
    color: var(--text-dim);
    margin-bottom: 24px;
    font-size: 1.05rem;
}
.overlay-buttons {
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.overlay-buttons .btn-secondary {
    margin-top: 0;
}

/* ألوان نتائج الجولة */
.win-1 { color: var(--player-1) !important; text-shadow: 0 0 20px var(--player-1); }
.win-2 { color: var(--player-2) !important; text-shadow: 0 0 20px var(--player-2); }
.win-draw { color: var(--accent-2) !important; text-shadow: 0 0 20px var(--accent-2); }

/* ==================== استجابة للشاشات الصغيرة ==================== */
@media (max-width: 720px) {
    .menu-card { padding: 28px 24px; }
    .choice-btn { min-width: 80px; padding: 10px 12px; font-size: 0.85rem; }
    .hud-stat { font-size: 0.75rem; padding: 3px 6px; }
    .hud-name { font-size: 0.85rem; }
    #hud { padding: 8px 10px; }
    #game-area { padding-top: 80px; }
}

/* شريط التمرير */
.menu-card::-webkit-scrollbar { width: 6px; }
.menu-card::-webkit-scrollbar-track { background: transparent; }
.menu-card::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.2); border-radius: 3px; }