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

body {
    background: #000;
    overflow: hidden;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    user-select: none;
    -webkit-user-select: none;
}

#game-container {
    position: relative;
    width: 100vw;
    height: 100vh;
}

#game-container canvas {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

#canvas-background { z-index: 1; }
#canvas-terrain { z-index: 2; }
#canvas-entities { z-index: 3; }
#canvas-effects { z-index: 4; }
#canvas-ui { z-index: 5; }

#menu-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: 10;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
}

#menu-overlay.hidden {
    display: none !important;
    pointer-events: none;
}

#menu-screen.hidden,
#setup-screen.hidden,
#gameover-screen.hidden {
    display: none !important;
}

#menu-screen,
#setup-screen,
#gameover-screen {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.hidden {
    display: none !important;
}

/* Menu styling */
.menu-title {
    font-size: 72px;
    font-weight: 900;
    color: #fff;
    text-shadow:
        0 0 20px rgba(255, 100, 0, 0.8),
        0 0 40px rgba(255, 50, 0, 0.6),
        3px 3px 0 #000;
    margin-bottom: 10px;
    letter-spacing: 2px;
}

.menu-subtitle {
    font-size: 28px;
    color: #ffa500;
    text-shadow: 2px 2px 0 #000;
    margin-bottom: 50px;
}

.menu-btn {
    display: block;
    width: 280px;
    padding: 15px 30px;
    margin: 8px 0;
    font-size: 22px;
    font-weight: 700;
    color: #fff;
    background: linear-gradient(180deg, #4a7c2e 0%, #2d5016 100%);
    border: 3px solid #6aaa3a;
    border-radius: 8px;
    cursor: pointer;
    text-align: center;
    text-shadow: 1px 1px 2px rgba(0,0,0,0.5);
    transition: all 0.15s ease;
}

.menu-btn:hover {
    background: linear-gradient(180deg, #5a9c3e 0%, #3d6026 100%);
    border-color: #8aca5a;
    transform: scale(1.05);
}

.menu-btn:active {
    transform: scale(0.98);
}

/* Setup screen */
.setup-container {
    background: rgba(0, 0, 0, 0.85);
    border: 2px solid #4a7c2e;
    border-radius: 12px;
    padding: 30px 40px;
    max-width: 700px;
    width: 90%;
    max-height: 85vh;
    overflow-y: auto;
}

.setup-title {
    font-size: 36px;
    color: #fff;
    text-align: center;
    margin-bottom: 25px;
    text-shadow: 2px 2px 0 #000;
}

.setup-row {
    display: flex;
    align-items: center;
    margin: 10px 0;
    gap: 12px;
}

.setup-label {
    color: #ccc;
    font-size: 16px;
    min-width: 120px;
}

.setup-input,
.setup-select {
    padding: 8px 12px;
    font-size: 15px;
    background: #1a1a2e;
    color: #fff;
    border: 2px solid #444;
    border-radius: 6px;
    outline: none;
}

.setup-input:focus,
.setup-select:focus {
    border-color: #6aaa3a;
}

.team-config {
    border: 1px solid #333;
    border-radius: 8px;
    padding: 15px;
    margin: 12px 0;
}

.team-config-header {
    font-size: 18px;
    font-weight: 700;
    margin-bottom: 10px;
}

.color-swatch {
    width: 30px;
    height: 30px;
    border-radius: 50%;
    border: 2px solid #fff;
    cursor: pointer;
    display: inline-block;
}

/* Weapon panel */
.weapon-panel {
    position: absolute;
    z-index: 20;
    background: rgba(0, 0, 0, 0.9);
    border: 2px solid #666;
    border-radius: 8px;
    padding: 8px;
    display: grid;
    grid-template-columns: repeat(7, 48px);
    gap: 4px;
}

.weapon-panel.hidden {
    display: none;
}

.weapon-slot {
    width: 48px;
    height: 48px;
    background: #222;
    border: 2px solid #444;
    border-radius: 4px;
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    position: relative;
    font-size: 10px;
    color: #aaa;
}

.weapon-slot:hover {
    border-color: #6aaa3a;
    background: #333;
}

.weapon-slot.selected {
    border-color: #ffcc00;
    background: #443300;
}

.weapon-slot .ammo {
    position: absolute;
    bottom: 2px;
    right: 3px;
    font-size: 9px;
    color: #ff0;
}

/* Game over */
@keyframes bounceIn {
    0% { transform: scale(0.3); opacity: 0; }
    50% { transform: scale(1.1); opacity: 1; }
    70% { transform: scale(0.9); }
    100% { transform: scale(1); }
}

.gameover-title {
    font-size: 56px;
    font-weight: 900;
    color: #ffcc00;
    text-shadow: 3px 3px 0 #000, 0 0 30px rgba(255, 200, 0, 0.5);
    margin-bottom: 20px;
}

.gameover-stats {
    color: #ccc;
    font-size: 18px;
    margin: 15px 0;
    text-align: center;
    line-height: 1.8;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: #111;
}

::-webkit-scrollbar-thumb {
    background: #444;
    border-radius: 4px;
}