/* Count the Falling Balls Game Styles */

:root {
    --primary-bg: #1a1a2e;
    --secondary-bg: #16213e;
    --accent-color: #00d4ff;
    --success-color: #00ff41;
    --warning-color: #ffa500;
    --error-color: #ff0033;
    --text-primary: #ffffff;
    --text-secondary: #b0b0b0;
    --border-color: #2a2a4e;
}

body {
    margin: 0;
    padding: 0;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: var(--primary-bg);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
}

.game-container {
    width: 100%;
    max-width: 800px;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--primary-bg);
}

/* Header Styles */
.game-header {
    background: var(--secondary-bg);
    padding: 1rem 1.5rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 2px solid var(--border-color);
    gap: 1rem;
    flex-wrap: wrap;
}

.back-button {
    color: var(--accent-color);
    text-decoration: none;
    font-size: 1.1rem;
    font-weight: 600;
    transition: transform 0.2s;
}

.back-button:hover {
    transform: translateX(-3px);
}

.game-title {
    font-size: 1.5rem;
    margin: 0;
    flex: 1;
    text-align: center;
    min-width: 200px;
}

.header-stats {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.2rem;
}

.stat-label {
    font-size: 0.7rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-value {
    font-size: 1.2rem;
    font-weight: bold;
    color: var(--accent-color);
}

#time-remaining.warning {
    color: var(--warning-color);
}

#time-remaining.critical {
    color: var(--error-color);
    animation: pulse 0.5s infinite;
}

/* Main Game Area */
.game-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1rem;
    position: relative;
    overflow-y: auto;
}

/* Screen Management */
.screen {
    display: none;
    flex-direction: column;
    align-items: center;
    gap: 1.5rem;
    width: 100%;
}

.screen.active {
    display: flex;
}

.screen-title {
    font-size: 2rem;
    margin: 0;
    text-align: center;
    color: var(--accent-color);
}

.screen-subtitle {
    font-size: 1.1rem;
    color: var(--text-secondary);
    margin: -1rem 0 0 0;
    text-align: center;
}

/* Difficulty Selection */
.difficulty-options {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    width: 100%;
    max-width: 500px;
}

.difficulty-btn {
    background: var(--secondary-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    cursor: pointer;
    transition: all 0.3s;
    color: var(--text-primary);
}

.difficulty-btn:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.3);
}

.difficulty-icon {
    font-size: 2rem;
}

.difficulty-name {
    font-size: 1.5rem;
    font-weight: bold;
}

.difficulty-info {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-align: center;
}

/* Status Message */
.status-message {
    font-size: 1.3rem;
    font-weight: bold;
    text-align: center;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    background: var(--secondary-bg);
    color: var(--accent-color);
    min-height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
}

/* Canvas Container */
.canvas-container {
    width: 100%;
    max-width: 600px;
    margin: 0 auto;
    background: var(--secondary-bg);
    border: 3px solid var(--border-color);
    border-radius: 12px;
    padding: 0.5rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
}

#game-canvas {
    display: block;
    width: 100%;
    height: auto;
    border-radius: 8px;
    background: #0d1117;
}

/* Answer Screen */
.answer-title {
    font-size: 2rem;
    color: var(--accent-color);
    margin: 0;
    text-align: center;
}

.answer-input-container {
    width: 100%;
    max-width: 300px;
}

.answer-input {
    width: 100%;
    padding: 1rem;
    font-size: 2.5rem;
    text-align: center;
    background: var(--secondary-bg);
    border: 3px solid var(--border-color);
    border-radius: 12px;
    color: var(--accent-color);
    font-weight: bold;
}

/* Number Pad */
.number-pad {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 0.75rem;
    max-width: 300px;
    width: 100%;
}

.num-btn {
    padding: 1.25rem;
    font-size: 1.8rem;
    font-weight: bold;
    background: var(--secondary-bg);
    border: 2px solid var(--border-color);
    border-radius: 12px;
    color: var(--text-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.num-btn:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.num-btn:active {
    transform: translateY(0);
}

.num-btn.wide {
    grid-column: span 2;
}

.num-btn.delete-btn {
    background: var(--error-color);
    border-color: var(--error-color);
}

.submit-btn {
    padding: 1.25rem 3rem;
    font-size: 1.3rem;
    font-weight: bold;
    background: var(--accent-color);
    border: none;
    border-radius: 12px;
    color: var(--primary-bg);
    cursor: pointer;
    transition: all 0.3s;
    margin-top: 1rem;
}

.submit-btn:hover {
    background: #00b8e6;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.4);
}

/* Game Controls */
.controls,
.game-controls {
    display: flex;
    gap: 1rem;
    justify-content: center;
    margin-top: 1rem;
}

.control-btn {
    background: var(--secondary-bg);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1.5rem;
    color: var(--text-primary);
    font-size: 1rem;
    cursor: pointer;
    transition: all 0.3s;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.control-btn:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

/* Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.85);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.modal.active {
    display: flex;
    animation: fadeIn 0.3s;
}

.modal-content {
    background: var(--secondary-bg);
    border: 2px solid var(--accent-color);
    border-radius: 16px;
    padding: 2rem;
    max-width: 500px;
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: slideUp 0.3s;
    max-height: 90vh;
    overflow-y: auto;
}

.modal-title {
    text-align: center;
    margin: 0;
    font-size: 2rem;
    color: var(--accent-color);
}

/* Feedback Stats */
.feedback-stats {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feedback-row {
    display: flex;
    justify-content: space-between;
    padding: 0.75rem;
    background: var(--primary-bg);
    border-radius: 8px;
}

.feedback-row.highlight {
    border: 2px solid var(--accent-color);
}

.feedback-label {
    color: var(--text-secondary);
    font-size: 1rem;
}

.feedback-value {
    color: var(--accent-color);
    font-size: 1.2rem;
    font-weight: bold;
}

.feedback-message {
    text-align: center;
    font-size: 1.2rem;
    padding: 1rem;
    background: var(--primary-bg);
    border-radius: 8px;
    color: var(--success-color);
}

/* Game Over Stats */
.modal-stats {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
}

.modal-stat {
    background: var(--primary-bg);
    padding: 1rem;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
}

.modal-stat.highlight {
    border: 2px solid var(--accent-color);
    grid-column: 1 / -1;
}

.modal-stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.modal-stat-value {
    font-size: 1.8rem;
    font-weight: bold;
    color: var(--accent-color);
}

.modal-message {
    text-align: center;
    font-size: 1.1rem;
    color: var(--text-secondary);
    padding: 1rem;
    background: var(--primary-bg);
    border-radius: 8px;
}

.modal-buttons {
    display: flex;
    gap: 1rem;
    flex-wrap: wrap;
}

.modal-btn {
    flex: 1;
    padding: 1rem;
    border: 2px solid var(--border-color);
    border-radius: 8px;
    background: var(--primary-bg);
    color: var(--text-primary);
    font-size: 1.1rem;
    cursor: pointer;
    transition: all 0.3s;
    min-width: 150px;
}

.modal-btn:hover {
    border-color: var(--accent-color);
    transform: translateY(-2px);
}

.modal-btn.primary {
    background: var(--accent-color);
    color: var(--primary-bg);
    border-color: var(--accent-color);
}

.modal-btn.primary:hover {
    background: #00b8e6;
    box-shadow: 0 4px 12px rgba(0, 212, 255, 0.4);
}

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

@keyframes slideUp {
    from {
        transform: translateY(30px);
        opacity: 0;
    }
    to {
        transform: translateY(0);
        opacity: 1;
    }
}

@keyframes pulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.05);
        opacity: 0.8;
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .game-header {
        padding: 0.75rem 1rem;
    }

    .game-title {
        font-size: 1.2rem;
    }

    .header-stats {
        gap: 0.5rem;
        width: 100%;
        justify-content: space-around;
    }

    .stat-value {
        font-size: 1rem;
    }

    .screen-title {
        font-size: 1.5rem;
    }

    .answer-title {
        font-size: 1.5rem;
    }

    .answer-input {
        font-size: 2rem;
        padding: 0.75rem;
    }

    .num-btn {
        padding: 1rem;
        font-size: 1.5rem;
    }

    .submit-btn {
        padding: 1rem 2rem;
        font-size: 1.1rem;
    }

    .modal-content {
        padding: 1.5rem;
    }

    .modal-title {
        font-size: 1.5rem;
    }
}

@media (max-width: 480px) {
    .game-main {
        padding: 0.75rem;
    }

    .difficulty-btn {
        padding: 1rem;
    }

    .difficulty-icon {
        font-size: 1.5rem;
    }

    .difficulty-name {
        font-size: 1.2rem;
    }

    .canvas-container {
        padding: 0.25rem;
    }

    .number-pad {
        gap: 0.5rem;
    }

    .num-btn {
        padding: 0.75rem;
        font-size: 1.3rem;
    }

    .modal-buttons {
        flex-direction: column;
    }

    .modal-btn {
        width: 100%;
    }

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

    .modal-stat.highlight {
        grid-column: 1;
    }
}