@import url('https://fonts.googleapis.com/css2?family=Roboto:wght@300;400;700&display=swap');

:root {
    --primary-color: #3498db;
    --secondary-color: #2ecc71;
    --background-color: #f0f3f5;
    --text-color: #333;
    --card-background: #ffffff;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    --hover-background: #e0e0e0;
}

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

body {
    font-family: 'Roboto', sans-serif;
    background: linear-gradient(135deg, var(--primary-color) 0%, var(--secondary-color) 100%);
    color: var(--text-color);
    line-height: 1.6;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

.dark-mode {
    --primary-color: #2980b9;
    --secondary-color: #27ae60;
    --background-color: #2c3e50;
    --text-color: #ecf0f1;
    --card-background: #34495e;
    --card-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
    --hover-background: #445566;
}

/* Dark mode toggle styles */
.dark-mode-toggle {
    position: relative;
    display: inline-block;
    width: 60px;
    height: 30px;
    margin-left: 15px;
}

.dark-mode-checkbox {
    opacity: 0;
    width: 0;
    height: 0;
}

.dark-mode-label {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: #ccc;
    transition: .4s;
    border-radius: 30px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 5px;
}

.dark-mode-label .fa-sun {
    color: #f39c12;
}

.dark-mode-label .fa-moon {
    color: #f1c40f;
}

.dark-mode-ball {
    position: absolute;
    height: 22px;
    width: 22px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
    border-radius: 50%;
}

.dark-mode-checkbox:checked + .dark-mode-label {
    background-color: #2c3e50;
}

.dark-mode-checkbox:checked + .dark-mode-label .dark-mode-ball {
    transform: translateX(30px);
}

#app {
    max-width: 100%;
    width: 100%;
    margin: 0 auto;
    padding: 10px;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.page {
    background-color: var(--card-background);
    border-radius: 10px;
    padding: 20px;
    margin-top: 10px;
    box-shadow: var(--card-shadow);
    display: none;
    flex-grow: 1;
}

h1, h2, h3 {
    color: var(--text-color);
    margin-bottom: 15px;
    text-align: center;
}

button {
    cursor: pointer;
    border: none;
    border-radius: 5px;
    transition: all 0.3s ease;
}

.big-button {
    font-size: 1.1em;
    padding: 12px 24px;
    background-color: var(--secondary-color);
    color: var(--card-background);
}

.medium-button {
    font-size: 0.9em;
    padding: 8px 16px;
    background-color: var(--primary-color);
    color: var(--card-background);
}

.big-button:hover, .medium-button:hover {
    opacity: 0.9;
    transform: scale(1.05);
}

#main-nav {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    padding: 10px;
    background-color: var(--card-background);
    border-radius: 10px;
    margin-bottom: 10px;
    box-shadow: var(--card-shadow);
}

.logo {
    font-size: 1.3em;
    font-weight: bold;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.nav-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.nav-button {
    background-color: transparent;
    color: var(--text-color);
    padding: 6px 12px;
    font-weight: 500;
    font-size: 0.9em;
    transition: background-color 0.3s ease;
}

.nav-button:hover {
    background-color: var(--hover-background);
}

#homepage {
    display: flex;
    text-align: center;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    gap: 20px;
}

#login-register {
    margin-top: 15px;
    display: flex;
    justify-content: center;
    gap: 15px;
}

#gameInfo {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 15px;
    background-color: var(--background-color);
    border-radius: 10px;
}

.info-box {
    text-align: center;
    flex: 1;
    min-width: 100px;
    margin: 5px;
}

.value-box {
    font-size: 1.2em;
    font-weight: bold;
    padding: 8px;
    background-color: var(--card-background);
    color: var(--text-color);
    border-radius: 5px;
    box-shadow: var(--card-shadow);
}

#gamePage {
    display: flex;
    flex-direction: column;
}

.game-board {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(50px, 1fr));
    gap: 10px;
    justify-content: center;
    margin-bottom: 20px;
    padding: 15px;
    background-color: var(--background-color);
    border-radius: 10px;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.circle {
    aspect-ratio: 1 / 1;
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1em;
    font-weight: bold;
    background-color: var(--primary-color);
    color: var(--card-background);
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--card-shadow);
}

.circle:hover {
    transform: scale(1.1);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

body, .page, #main-nav, .game-board, .stat-card, .recent-scores, #leaderboardTable tr, .circle {
    transition: background-color 0.3s ease, color 0.3s ease;
}

#pauseButton {
    align-self: center;
    margin-top: 15px;
}

/* Form styles */
form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    max-width: 300px;
    margin: 0 auto;
}

input[type="text"],
input[type="password"] {
    padding: 10px;
    border: 1px solid #ddd;
    border-radius: 5px;
    font-size: 1em;
    width: 100%;
    background-color: var(--card-background);
    color: var(--text-color);
}

/* Enhanced User Profile Styles */
#profilePage {
    max-width: 800px;
    margin: 20px auto;
    padding: 20px;
    background-color: var(--card-background);
    border-radius: 15px;
    box-shadow: var(--card-shadow);
}

.profile-container {
    display: flex;
    flex-direction: column;
    gap: 30px;
}

.profile-header {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
}

.profile-header i {
    font-size: 3em;
    color: var(--primary-color);
}

#profileUsername {
    font-size: 2em;
    font-weight: bold;
    color: var(--primary-color);
    margin: 0;
    text-transform: uppercase;
}

.profile-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
}

.stat-card {
    background-color: var(--background-color);
    padding: 20px;
    border-radius: 10px;
    text-align: center;
    box-shadow: var(--card-shadow);
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.stat-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 6px 12px rgba(0, 0, 0, 0.1);
}

.stat-card i {
    font-size: 2em;
    color: var(--primary-color);
    margin-bottom: 10px;
}

.stat-card p {
    font-size: 0.9em;
    color: var(--text-color);
    margin-bottom: 5px;
}

.stat-card span {
    font-size: 1.5em;
    font-weight: bold;
    color: var(--secondary-color);
}

.recent-scores {
    background-color: var(--background-color);
    padding: 20px;
    border-radius: 10px;
    box-shadow: var(--card-shadow);
}

.recent-scores h3 {
    margin-bottom: 15px;
    color: var(--primary-color);
}

#recentScores {
    list-style-type: none;
    padding: 0;
}

#recentScores li {
    background-color: var(--card-background);
    margin-bottom: 10px;
    padding: 10px;
    border-radius: 5px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background-color 0.3s ease;
}

#recentScores li:hover {
    background-color: var(--hover-background);
}

.score-value {
    font-weight: bold;
    color: var(--secondary-color);
}

/* Game Over Page Styles */
#gameOverPage {
    display: flex;
    justify-content: center;
    align-items: center;
    height: 100%;
}

.game-over-content {
    background-color: var(--card-background);
    border-radius: 15px;
    padding: 30px;
    text-align: center;
    box-shadow: var(--card-shadow);
    max-width: 400px;
    width: 100%;
}

.game-over-content h2 {
    color: var(--primary-color);
    font-size: 2.5em;
    margin-bottom: 20px;
}

.score-container {
    display: flex;
    justify-content: space-around;
    margin-bottom: 30px;
}

.score-item {
    text-align: center;
}

.score-item i {
    font-size: 2em;
    color: var(--secondary-color);
    margin-bottom: 10px;
}

.score-item p {
    font-size: 1.2em;
    color: var(--text-color);
}

.score-item span {
    font-weight: bold;
    color: var(--primary-color);
}

/* Leaderboard styles */
#leaderboardTable {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0 10px;
    margin-top: 20px;
}

#leaderboardTable th,
#leaderboardTable td {
    padding: 12px;
    text-align: left;
}

#leaderboardTable th {
    background-color: var(--primary-color);
    color: var(--card-background);
    font-weight: bold;
    text-transform: uppercase;
}

#leaderboardTable tr {
    background-color: var(--card-background);
    box-shadow: var(--card-shadow);
    transition: all 0.3s ease;
}

#leaderboardTable tr:hover {
    transform: translateY(-3px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

#leaderboardTable td:first-child {
    border-top-left-radius: 5px;
    border-bottom-left-radius: 5px;
}

#leaderboardTable td:last-child {
    border-top-right-radius: 5px;
    border-bottom-right-radius: 5px;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.page {
    animation: fadeIn 0.5s ease-in-out;
}

/* Responsive styles */
@media (max-width: 768px) {
    #app {
        padding: 5px;
    }

    .page {
        padding: 15px;
    }

    h1 {
        font-size: 1.8em;
    }

    h2 {
        font-size: 1.5em;
    }

    .big-button, .medium-button {
        font-size: 0.9em;
        padding: 10px 20px;
    }

    .game-board {
        grid-template-columns: repeat(auto-fit, minmax(40px, 1fr));
        gap: 8px;
        padding: 10px;
    }

    .circle {
        font-size: 0.9em;
    }

    .info-box {
        min-width: 80px;
    }

    .value-box {
        font-size: 1em;
        padding: 6px;
    }

    #leaderboardTable {
        font-size: 0.9em;
    }

    #leaderboardTable th,
    #leaderboardTable td {
        padding: 10px;
    }

    #profilePage {
        padding: 15px;
    }

    #profileUsername {
        font-size: 1.8em;
    }

    .stat-card {
        padding: 15px;
    }

    .stat-card span {
        font-size: 1.3em;
    }
}

@media (max-width: 480px) {
    .nav-buttons {
        flex-direction: column;
        align-items: stretch;
    }

    .nav-button {
        text-align: center;
    }

    .game-board {
        grid-template-columns: repeat(auto-fit, minmax(30px, 1fr));
        gap: 5px;
    }

    .circle {
        font-size: 0.8em;
    }

    .info-box {
        min-width: 60px;
    }

    .value-box {
        font-size: 0.9em;
        padding: 4px;
    }

    .game-over-content h2 {
        font-size: 2em;
    }

    .score-item p {
        font-size: 1em;
    }

    #profilePage {
        padding: 10px;
    }

    #profileUsername {
        font-size: 1.5em;
    }

    .profile-stats {
        grid-template-columns: 1fr;
    }

    .stat-card {
        padding: 10px;
    }

    .stat-card span {
        font-size: 1.2em;
    }

    #recentScores li {
        flex-direction: column;
        align-items: flex-start;
    }

    .score-date {
        margin-bottom: 5px;
    }

    form {
        max-width: 100%;
    }
}