:root {
    --tile-size: 30px;
}

body {
    font-family: 'Arial', sans-serif;
    background-color: #c0c0c0;
    display: flex;
    justify-content: flex-start;
    align-items: flex-start;
    min-height: 100vh;
    margin: 0;
    padding: 10px;
    box-sizing: border-box;
    touch-action: pan-x pan-y;
}

.screen {
    width: 100%;
    display: none;
}
.screen.active {
    display: block;
}
#main-menu.active, #auth-screen.active, #online-lobby-screen.active {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    padding-top: 20vh;
    text-align: center;
}

#main-menu h1, #auth-screen h2, #online-lobby-screen h2 { font-size: 2.5em; margin-bottom: 20px; }
.menu-button { min-width: 250px; padding: 15px 20px; font-size: 1.2em; background-color: #c0c0c0; border: 2px solid; border-color: #fff #7b7b7b #7b7b7b #fff; cursor: pointer; }
.menu-button:active { border-color: #7b7b7b #fff #fff #7b7b7b; }
.menu-button:disabled { opacity: 0.5; cursor: not-allowed; }

/* --- Стили для Аутентификации и Лобби --- */
#auth-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    width: 100%;
    max-width: 320px;
}
.form-group {
    text-align: left;
}
.form-group label {
    margin-bottom: 5px;
    display: block;
}
.form-group input {
    width: 100%;
    padding: 8px;
    font-size: 1em;
    border: 2px inset #7b7b7b;
    box-sizing: border-box;
}
.auth-buttons {
    display: flex;
    justify-content: center; /* Центрируем кнопку входа */
    width: 100%;
}
.auth-buttons button {
    min-width: 150px;
    padding: 10px 15px;
    font-size: 1em;
    background-color: #c0c0c0;
    border: 2px solid;
    border-color: #fff #7b7b7b #7b7b7b #fff;
    cursor: pointer;
}
.auth-buttons button:active {
    border-color: #7b7b7b #fff #fff #7b7b7b;
}
.auth-message {
    min-height: 20px;
    font-weight: bold;
}
.back-button {
    margin-top: 20px;
    font-size: 0.9em;
    background: none;
    border: none;
    color: #333;
    text-decoration: underline;
    cursor: pointer;
}

#online-lobby-screen {
    width: 100%;
    max-width: 500px; /* Ограничим ширину лобби */
    margin: 0 auto;
}
.lobby-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 20px;
}
.lobby-header span {
    font-size: 1.1em;
}
#logout-btn {
    padding: 5px 10px;
    font-size: 0.9em;
    background-color: #c0c0c0;
    border: 2px solid;
    border-color: #fff #7b7b7b #7b7b7b #fff;
    cursor: pointer;
}
#lobby-content {
    width: 100%;
    padding: 15px;
    border: 2px inset #7b7b7b;
    min-height: 200px;
    text-align: center;
}
/* --- Конец стилей для Аутентификации и Лобби --- */


.game-wrapper { display: flex; flex-direction: column; align-items: flex-start; gap: 15px; }
.controls-panel, .game-panel { padding: 8px; border: 2px solid; border-color: #7b7b7b #fff #fff #7b7b7b; }
.controls-panel { background: #c0c0c0; display: flex; flex-direction: column; gap: 10px; max-width: 100%; }
.difficulty-selector, #custom-settings { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
#back-to-menu-btn { min-width: auto; padding: 5px 10px; font-size: 1em; }
#custom-settings input { width: 50px; font-size: 14px; }
.game-panel { padding: 6px; display: inline-block; user-select: none; -webkit-user-select: none; }
.status-bar { display: flex; justify-content: space-between; align-items: center; padding: 6px; margin-bottom: 6px; border: 2px solid; border-color: #fff #7b7b7b #7b7b7b #fff; }
.led-display { background-color: #000; color: #ff0000; font-family: 'monospace'; font-size: 28px; padding: 2px 8px; min-width: 60px; text-align: center; }
.game-reset { width: 36px; height: 36px; font-size: 24px; border: 2px solid; border-color: #fff #7b7b7b #7b7b7b #fff; background-color: #c0c0c0; cursor: pointer; }
.game-reset:active { border-color: #7b7b7b #fff #fff #7b7b7b; }

#game-board { display: grid; border: 2px solid; border-color: #fff #7b7b7b #7b7b7b #fff; }
.tile { 
    width: var(--tile-size); 
    height: var(--tile-size); 
    background-color: #c0c0c0; 
    border: 2px solid; 
    border-color: #fff #7b7b7b #7b7b7b #fff; 
    display: flex; 
    justify-content: center; 
    align-items: center; 
    font-size: calc(var(--tile-size) * 0.7); 
    font-weight: bold; 
    cursor: pointer; 
    user-select: none;
    -webkit-user-select: none;
    -webkit-touch-callout: none;
}
.tile.selectable {
    -webkit-user-select: text;
}

.tile.revealed { border: 1px solid #7b7b7b; }
.tile:not(.revealed):active { background-color: #e0e0e0; border: 1px solid #7b7b7b; }
.tile.mine-hit { background-color: #ff0000; }
.tile .tile-content { display: inline-block; }

@keyframes place-flag-animation {
    0% { transform: scale(1.8) translateY(-25px); opacity: 0.5; }
    50% { transform: scale(1.8) translateY(-25px); opacity: 0.8; }
    100% { transform: scale(1) translateY(0); opacity: 1; }
}
.flag-animated { animation: place-flag-animation 0.25s ease-out; }

.tile[data-mines="1"] { color: #0000ff; }
.tile[data-mines="2"] { color: #008000; }
.tile[data-mines="3"] { color: #ff0000; }
.tile[data-mines="4"] { color: #000080; }
.tile[data-mines="5"] { color: #800000; }
.tile[data-mines="6"] { color: #008080; }
.tile[data-mines="7"] { color: #000000; }
.tile[data-mines="8"] { color: #808080; }

.hidden { display: none !important; }

@media (max-width: 600px) { body { padding: 5px; } }