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

body {
    background: #008080 url('data:image/svg+xml,<svg xmlns="http://www.w3.org/2000/svg" width="4" height="4"><rect width="2" height="2" fill="%23006666"/><rect x="2" y="2" width="2" height="2" fill="%23006666"/></svg>');
    font-family: "MS Sans Serif", "Microsoft Sans Serif", Tahoma, sans-serif;
    font-size: 11px;
    padding: 20px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
}

.retro-window {
    background: #c0c0c0;
    border: 2px solid;
    border-color: #dfdfdf #808080 #808080 #dfdfdf;
    box-shadow: 1px 1px 0 #ffffff inset, 2px 2px 0 #dfdfdf inset, 1px 1px 0 #000000, 2px 2px 0 #808080;
    max-width: 900px;
    width: 100%;
    font-family: inherit;
}

.window-title {
    background: linear-gradient(90deg, #000080 0%, #1084d7 100%);
    color: white;
    padding: 2px 2px 2px 4px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 20px;
    font-weight: bold;
    font-size: 11px;
    user-select: none;
}

.title-text {
    flex: 1;
}

.title-buttons {
    display: flex;
    gap: 2px;
}

.title-btn {
    width: 16px;
    height: 14px;
    padding: 0;
    border: 1px solid;
    border-color: #dfdfdf #000000 #000000 #dfdfdf;
    background: #c0c0c0;
    color: black;
    font-size: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    font-weight: bold;
}

.title-btn:active {
    border-color: #000000 #dfdfdf #dfdfdf #000000;
}

.menu-bar {
    background: #c0c0c0;
    padding: 2px 4px;
    border-bottom: 1px solid #808080;
    display: flex;
    gap: 8px;
}

.menu-item {
    padding: 2px 6px;
    cursor: pointer;
}

.menu-item:hover {
    background: #000080;
    color: white;
}

.window-contents {
    padding: 8px;
    background: #c0c0c0;
}

.game-panel {
    background: #c0c0c0;
}

.top-panel {
    background: #c0c0c0;
    border: 3px solid;
    border-color: #808080 #dfdfdf #dfdfdf #808080;
    padding: 6px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

.mine-counter, .timer {
    background: #000;
    color: #ff0000;
    font-family: "Courier New", monospace;
    font-size: 24px;
    font-weight: bold;
    padding: 4px 8px;
    border: 2px solid;
    border-color: #808080 #dfdfdf #dfdfdf #808080;
    min-width: 60px;
    text-align: center;
}

.face-button {
    width: 36px;
    height: 36px;
    font-size: 24px;
    border: 2px solid;
    border-color: #dfdfdf #808080 #808080 #dfdfdf;
    background: #c0c0c0;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
}

.face-button:active {
    border-color: #808080 #dfdfdf #dfdfdf #808080;
}

.settings-panel {
    background: #c0c0c0;
    padding: 8px;
    border: 2px solid;
    border-color: #dfdfdf #808080 #808080 #dfdfdf;
    margin-bottom: 8px;
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    align-items: center;
}

.setting-group {
    display: flex;
    align-items: center;
    gap: 4px;
}

.retro-select {
    padding: 2px 4px;
    border: 2px solid;
    border-color: #808080 #dfdfdf #dfdfdf #808080;
    background: white;
    font-family: inherit;
    font-size: 11px;
}

.retro-input-small {
    width: 50px;
    padding: 2px 4px;
    border: 2px solid;
    border-color: #808080 #dfdfdf #dfdfdf #808080;
    background: white;
    font-family: inherit;
    font-size: 11px;
}

.retro-button {
    padding: 4px 12px;
    border: 2px solid;
    border-color: #dfdfdf #808080 #808080 #dfdfdf;
    background: #c0c0c0;
    color: black;
    font-family: inherit;
    font-size: 11px;
    font-weight: bold;
    cursor: pointer;
    min-width: 75px;
}

.retro-button:hover {
    border-color: #ffffff #000000 #000000 #ffffff;
}

.retro-button:active {
    border-color: #808080 #dfdfdf #dfdfdf #808080;
}

.game-board-container {
    display: flex;
    justify-content: center;
    margin-bottom: 8px;
    overflow: auto;
    max-height: 500px;
}

.game-board {
    display: inline-grid;
    gap: 0;
    border: 3px solid;
    border-color: #808080 #dfdfdf #dfdfdf #808080;
    background: #c0c0c0;
    padding: 4px;
}

.cell {
    width: 24px;
    height: 24px;
    border: 2px solid;
    border-color: #dfdfdf #808080 #808080 #dfdfdf;
    background: #c0c0c0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 14px;
    font-weight: bold;
    cursor: pointer;
    user-select: none;
}

.cell:hover {
    filter: brightness(1.1);
}

.cell.revealed {
    border: 1px solid #808080;
    border-color: #808080 #808080 #808080 #808080;
    background: #bdbdbd;
}

.cell.mine {
    background: #ff0000;
}

.cell.flagged {
    background: #c0c0c0;
}

.cell.flagged::before {
    content: '🚩';
    font-size: 14px;
}

.cell.safe {
    background: #90EE90;
}

.cell.number-1 { color: #0000ff; }
.cell.number-2 { color: #008000; }
.cell.number-3 { color: #ff0000; }
.cell.number-4 { color: #000080; }
.cell.number-5 { color: #800000; }
.cell.number-6 { color: #008080; }
.cell.number-7 { color: #000000; }
.cell.number-8 { color: #808080; }

.controls-panel {
    background: #c0c0c0;
    padding: 8px;
    border: 2px solid;
    border-color: #dfdfdf #808080 #808080 #dfdfdf;
    margin-bottom: 8px;
}

.mode-selector {
    display: flex;
    gap: 16px;
    margin-bottom: 8px;
    flex-wrap: wrap;
}

.mode-selector label {
    display: flex;
    align-items: center;
    gap: 4px;
}

.action-buttons {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.hint-panel {
    background: #FFFFCC;
    border: 2px solid;
    border-color: #dfdfdf #808080 #808080 #dfdfdf;
    padding: 12px;
    margin-top: 8px;
}

.hint-panel h4 {
    margin-bottom: 8px;
    color: #000080;
}

.hint-panel p {
    line-height: 1.5;
}

.custom-size {
    display: flex;
    gap: 8px;
}

.window-status-bar {
    background: #c0c0c0;
    border-top: 1px solid #dfdfdf;
    padding: 2px 2px;
    display: flex;
}

.status-text {
    padding: 2px 4px;
    font-size: 11px;
    color: #000;
    flex: 1;
    border: 1px solid;
    border-color: #808080 #dfdfdf #dfdfdf #808080;
}

/* Responsive */
@media (max-width: 900px) {
    body {
        padding: 10px;
    }
    
    .settings-panel,
    .controls-panel {
        font-size: 10px;
    }
    
    .retro-button {
        min-width: 60px;
        padding: 3px 8px;
    }
}