:root {
    --cell-size: 30px;
    --grid-gap: 2px;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background-color: #1a1a1a;
    color: #eee;
    text-align: center;
    margin: 0;
    padding: 0;
    overscroll-behavior: none; /* Prevent bounce on mobile */
    height: 100vh;
    display: flex;
    flex-direction: column;
}

#game-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow-y: auto;
    padding: 10px;
}

h1 {
    font-size: 1.5rem;
    margin: 10px 0;
}

.grids {
    display: flex;
    justify-content: center;
    gap: 20px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.grid-container h3 {
    margin: 5px 0;
    font-size: 1rem;
    color: #aaa;
}

.grid {
    display: grid;
    /* Use variables for responsiveness */
    grid-template-columns: repeat(9, var(--cell-size));
    grid-template-rows: repeat(7, var(--cell-size));
    gap: var(--grid-gap);
    background-color: #333;
    padding: 5px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.3);
    margin: 0 auto;
    width: fit-content;
}

.cell {
    width: var(--cell-size);
    height: var(--cell-size);
    background-color: #0b3d68;
    border: 1px solid #1a5c92;
    cursor: pointer;
    border-radius: 2px;
    box-sizing: border-box;
    transition: background-color 0.1s;
}

.cell:hover {
    filter: brightness(1.2);
}

.cell.ship { 
    background-color: #795548; /* Brown (Wooden Ship) */
    border-color: #4e342e;
} 
.cell.hit { background-color: #e53935; } /* Red */
.cell.miss { 
    background-color: #e1f5fe; /* Light Blue/White Splash */
    opacity: 0.7; 
} 
.cell.sunk { background-color: #212121; border-color: #e53935; border-width: 2px;} /* Dark hull */

.cell.revealed {
    opacity: 0.6; /* Slightly ghosted to indicate they were revealed at end */
    border: 1px dashed #795548;
}

/* Dragging feedback */
.cell.dragging-source {
    opacity: 0.4;
}

.cell.drag-over-valid {
    background-color: #44aa44 !important;
}

.cell.drag-over-invalid {
    background-color: #aa4444 !important;
}

/* Ghost ship processing */
#ghost-ship {
    position: fixed;
    pointer-events: none;
    background: rgba(136, 136, 136, 0.8);
    border: 2px solid #fff;
    z-index: 1000;
    display: none;
    /* Flex layout to mimic cells */
    display: flex; /* overridden by JS usually */
    flex-wrap: nowrap;
}

.ghost-cell {
    width: 30px;
    height: 30px;
    border: 1px solid #ccc;
    box-sizing: border-box;
}

#messages {
    height: 100px;
    overflow-y: scroll;
    border: 1px solid #555;
    background: #252525;
    margin-top: 10px;
    text-align: left;
    padding: 5px;
    font-size: 14px;
    /* Smooth scrolling */
    scroll-behavior: smooth;
}

button {
    padding: 10px 20px;
    font-size: 16px;
    cursor: pointer;
    background: #0077cc;
    color: white;
    border: none;
    border-radius: 4px;
}

#lobby-list {
    margin: 20px auto;
    max-width: 500px;
    background: #333;
    padding: 10px;
    border-radius: 5px;
}

.lobby-item {
    background: #444;
    padding: 10px;
    margin: 5px 0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-radius: 3px;
}

.lobby-item span {
    font-weight: bold;
}

.lobby-btn-join {
    background-color: #2ecc71;
    font-size: 14px;
    padding: 5px 10px;
}

/* Mobile Optimizations */
@media (max-width: 768px) {
    :root {
        --cell-size: 9.5vw; /* Fits 9 columns nicely */
    }

    #game-container {
        padding: 5px;
    }

    /* Tab System (Hidden on Desktop) */
    .mobile-tabs {
        display: flex;
        width: 100%;
        margin-bottom: 10px;
        background: #333;
        border-radius: 8px;
        overflow: hidden;
    }

    .tab-btn {
        flex: 1;
        padding: 12px;
        background: none;
        border: none;
        color: #888;
        font-weight: bold;
        text-transform: uppercase;
        border-bottom: 3px solid transparent;
        transition: 0.3s;
    }

    .tab-btn.active {
        background: #444;
        color: #fff;
        border-bottom-color: #0077cc;
    }

    /* Only show active grid container on mobile */
    .grid-container {
        display: none; /* JS will toggle 'active-view' class */
        width: 100%;
        animation: fadeIn 0.3s;
    }

    .grid-container.active-view {
        display: block;
    }

    /* Controls at bottom */
    #controls {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: #222;
        padding: 10px;
        box-sizing: border-box;
        border-top: 1px solid #444;
        display: flex;
        flex-direction: column;
        align-items: center;
        z-index: 100;
    }
    
    #place-controls, #fire-controls {
        width: 100%;
        display: flex;
        justify-content: space-around;
        align-items: center;
    }
    
    #messages {
        margin-bottom: 80px; /* Space for fixed controls */
    }
    
    button {
        padding: 12px 15px; /* Bigger touch targets */
        font-size: 14px;
    }

    /* Mobile: make opponent grids full width/size like My Grid */
    .mini-grid-wrapper {
        padding: 0;
        background: transparent;
        border: none;
        width: 100%;
    }
    
    .mini-grid-wrapper h4 {
        display: none; /* Hide internal header since tab has name */
    }
}

/* Desktop Layout */
@media (min-width: 769px) {
    .grid-container {
        display: block !important;
    }
    .mobile-tabs {
        display: none !important;
    }
    
    /* On desktop, .grids is a flex container */
    .grids {
        display: flex;
        flex-wrap: nowrap; /* Force single row for desktop */
        justify-content: center;
        gap: 20px;
        /* Ensure it scrolls if too wide, or fits */
        max-width: 100%;
        overflow-x: auto;
    }

    /* Override mobile generic grid-container behavior */
    .grid-container {
        /* On desktop, allow shrinking if necessary */
        flex: 0 1 auto;
        min-width: 300px; /* Prevent becoming too thin */
    }
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(5px); }
    to { opacity: 1; transform: translateY(0); }
}

/* Multiplayer Layout */
.op-grids-layout {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 15px;
}

.mini-grid-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    background: #252525;
    padding: 8px;
    border-radius: 8px;
    transition: all 0.3s ease;
    border: 1px solid transparent;
}

.mini-grid-wrapper h4 { 
    margin: 0 0 8px 0;
    color: #ccc;
    font-size: 0.9em;
    font-weight: 600;
}

/* Active Target Highlight (e.g. who I should shoot) */
.mini-grid-wrapper.active-target {
    border-color: #ff9900;
    background: #332a20;
    box-shadow: 0 0 10px rgba(255, 153, 0, 0.2);
}

.mini-grid-wrapper.dead {
    opacity: 0.4;
    filter: grayscale(1);
    border-color: #444;
}

/* Scaling down opponent grids removed - User wants full size */
/*.mini-grid-wrapper .grid {
    --cell-size: 20px;
}*/

/* Player Identity Colors (Border/Text for name) */
.p-id-0 { color: #4CAF50; } 
.p-id-1 { color: #2196F3; } 
.p-id-2 { color: #FFC107; } 
.p-id-3 { color: #E91E63; } 

.p-border-0 { border-bottom: 2px solid #4CAF50; } 
.p-border-1 { border-bottom: 2px solid #2196F3; } 
.p-border-2 { border-bottom: 2px solid #FFC107; } 
.p-border-3 { border-bottom: 2px solid #E91E63; }

/* Enhance hit/miss visuals for smaller grids */
.mini-grid-wrapper .cell.hit::after,
.mini-grid-wrapper .cell.miss::after {
    font-size: 14px; 
}

@media (max-width: 768px) {
    .op-grids-layout {
        justify-content: space-around;
        gap: 5px;
    }
    
    /* Removed scaling for mobile since we use tabs now */
}

#lobby-controls {
    margin-top: 20px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.player-select {
    display: flex;
    gap: 15px;
    background: #333;
    padding: 8px 15px;
    border-radius: 20px;
}

.player-select label {
    cursor: pointer;
    font-size: 0.9em;
    display: flex;
    align-items: center;
    gap: 5px;
}

/* FORCE OVERRIDES AT END OF FILE */
@media (max-width: 768px) {
    /* Hide the "Your Grid" header */
    #container-my-grid h3 {
         display: none !important;
    }

    /* Ensure opponents grids are full width and centered */
    .mini-grid-wrapper {
        padding: 0 !important;
        background: transparent !important;
        border: none !important;
        width: 100% !important;
        margin: 0 !important;
        box-shadow: none !important;
    }

    /* Prevent border addition on active target from shifting layout or reducing width */
    .mini-grid-wrapper.active-target {
        border: none !important;
        /* Use a subtle inset shadow instead to show activity without layout shift */
        box-shadow: inset 0 0 15px rgba(255, 153, 0, 0.3) !important;
    }
    
    /* Ensure grid centers itself */
    .mini-grid-wrapper .grid {
        margin: 0 auto !important;
    }
}
/* Mobile Status Bar Styling */
.mobile-status-bar {
    display: none; /* Hidden by default (Desktop) */
    width: 100%;
    text-align: center;
    padding: 10px;
    background: #252525;
    margin-bottom: 10px;
    font-weight: bold;
    font-size: 1.1em;
    border-radius: 4px;
    color: #eee;
}

@media (max-width: 768px) {
    /* Show mobile status bar */
    .mobile-status-bar {
        display: block;
    }

    /* Hide global status bar ONLY when in game (body class added by JS) */
    body.in-game #status {
        display: none !important;
    }
}