:root {
    --background-color: #f5f5f5;
    --card-background: white;
    --text-color: #333;
    --heading-color: #2c3e50;
    --primary-color: #3498db;
    --primary-color-rgb: 52, 152, 219;
    --primary-hover: #2980b9;
    --success-color: #27ae60;
    --error-color: #e74c3c;
    --hint-color: #f39c12;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --input-border: #ddd;
    --placeholder-bg: #e0e0e0;
    --placeholder-color: #a0a0a0;
    --placeholder-border: #c0c0c0;
    --choice-bg: #f1f1f1;
    --choice-border: #ddd;
    --choice-hover: #e1e1e1;
    --toggle-bg: #95a5a6;
    --toggle-hover: #7f8c8d;
    --modal-backdrop: rgba(0, 0, 0, 0.5);
    
    /* Feedback colors with new terminology */
    --almost-there-color: #ff4d4d;
    --getting-closer-color: #ff7f4d;
    --on-track-color: #ffa64d;
    --neutral-color: #ffe54d;
    --too-broad-color: #4dc3ff;
    --far-off-color: #4d7fff;
    --completely-off-color: #4d4dff;
    --correct-color: #27ae60; /* Green for correct answers */
}

.dark-mode {
    --background-color: #1a1a2e;
    --card-background: #16213e;
    --text-color: #e1e1e1;
    --heading-color: #4ca1ff;
    --primary-color: #4ca1ff;
    --primary-color-rgb: 76, 161, 255;
    --primary-hover: #1a7bd0;
    --success-color: #2ecc71;
    --error-color: #e74c3c;
    --hint-color: #f39c12;
    --card-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    --input-border: #394867;
    --placeholder-bg: #283149;
    --placeholder-color: #8d99ae;
    --placeholder-border: #394867;
    --choice-bg: #283149;
    --choice-border: #394867;
    --choice-hover: #394867;
    --toggle-bg: #394867;
    --toggle-hover: #283149;
    --modal-backdrop: rgba(0, 0, 0, 0.7);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background-color: var(--background-color);
    margin: 0;
    padding: 0;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    color: var(--text-color);
    transition: background-color 0.3s, color 0.3s;
}

.game-container {
    background-color: var(--card-background);
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    padding: 30px;
    max-width: 800px;
    width: 100%;
    text-align: center;
    position: relative;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.header-icons {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.icon-button {
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--primary-color);
    cursor: pointer;
    padding: 5px;
    transition: color 0.3s;
}

.icon-button:hover {
    color: var(--primary-hover);
}

/* Dark/Light Mode Toggle */
.dark-icon, .light-icon {
    transition: opacity 0.3s;
}

body:not(.dark-mode) .dark-icon {
    display: inline-block;
}

body:not(.dark-mode) .light-icon {
    display: none;
}

body.dark-mode .dark-icon {
    display: none;
}

body.dark-mode .light-icon {
    display: inline-block;
}

.header-right {
    display: flex;
    align-items: center;
}

h1 {
    margin: 0;
    color: var(--heading-color);
    font-size: 2.2rem;
    font-weight: 700;
    letter-spacing: 1px;
    transition: color 0.3s;
}

/* Ladder Board Styles */
.ladder-board {
    display: flex;
    flex-wrap: wrap;
    justify-content: space-between;
    gap: 15px;
    margin-bottom: 20px;
}

.ladder-column {
    flex: 1;
    min-width: 120px;
    display: flex;
    flex-direction: column;
    align-items: center;
    border-radius: 10px;
    padding: 10px;
    background-color: rgba(var(--primary-color-rgb), 0.05);
    transition: background-color 0.3s;
}

.category-label {
    font-weight: bold;
    margin-bottom: 10px;
    padding: 5px 10px;
    border-radius: 15px;
    background-color: var(--placeholder-bg);
    color: var(--placeholder-color);
    transition: all 0.3s;
    width: 100%;
    text-align: center;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.category-label.revealed {
    background-color: var(--success-color);
    color: white;
}

.word-container {
    display: flex;
    flex-direction: column;
    gap: 10px;
    width: 100%;
}

.word-slot {
    width: 100%;
    min-height: 40px;
    margin: 5px 0;
    padding: 10px;
    border-radius: 8px;
    background-color: var(--placeholder-bg);
    color: var(--placeholder-color);
    border: 1px solid var(--placeholder-border);
    transition: all 0.3s;
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
}

.word-slot.revealed {
    background-color: var(--card-background);
    color: var(--text-color);
    border-color: var(--primary-color);
    box-shadow: 0 2px 5px rgba(var(--primary-color-rgb), 0.2);
}

.word-slot.success {
    background-color: rgba(39, 174, 96, 0.2);
    border-color: var(--success-color);
    color: var(--success-color);
    font-weight: bold;
}

.word-slot.error {
    background-color: rgba(231, 76, 60, 0.2);
    border-color: var(--error-color);
    color: var(--error-color);
    animation: shake 0.5s;
}

/* Final Challenge Styles */
.final-column {
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    margin-top: 15px;
    position: relative;
    border: 1px solid rgba(var(--primary-color-rgb), 0.3);
    border-radius: 10px;
    padding: 20px 15px;
    background-color: rgba(var(--primary-color-rgb), 0.05);
}

.final-label {
    font-weight: bold;
    font-size: 1.2rem;
    margin-top: 15px;
    color: var(--primary-color);
    text-align: center;
}

.final-container {
    width: 100%;
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
}

.final-category-words {
    width: 100%;
    display: flex;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 15px;
    padding: 0 10px;
    margin-top: 0;
}

.final-word {
    width: calc(25% - 15px);
    min-height: 40px;
    margin: 5px 0;
    padding: 10px 15px;
    border-radius: 8px;
    background-color: var(--card-background);
    color: var(--text-color);
    border: 1px solid var(--primary-color);
    box-shadow: 0 2px 5px rgba(var(--primary-color-rgb), 0.2);
    font-weight: 500;
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    text-align: center;
    transition: all 0.3s;
}

.final-word.success {
    background-color: rgba(39, 174, 96, 0.2);
    border-color: var(--success-color);
    color: var(--success-color);
    font-weight: bold;
}

/* Connection Arrows */
.connection-arrows {
    width: 100%;
    display: flex;
    justify-content: space-between;
    margin: 0 0 20px 0;
    position: relative;
    padding: 0 calc(12.5% - 15px); /* Adjust padding to center arrows over words */
}

.connection-arrow {
    display: flex;
    flex-direction: column;
    align-items: center;
    color: var(--primary-color);
    animation: bounce 2s infinite;
    transform: rotate(180deg); /* Flip arrows to point upward */
}

.arrow-line {
    width: 2px;
    height: 30px;
    background-color: var(--primary-color);
    margin-bottom: 5px;
}

.arrow-head {
    width: 0;
    height: 0;
    border-left: 8px solid transparent;
    border-right: 8px solid transparent;
    border-top: 10px solid var(--primary-color);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% {
        transform: translateY(0);
    }
    40% {
        transform: translateY(-10px);
    }
    60% {
        transform: translateY(-5px);
    }
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .final-category-words {
        flex-direction: column;
        align-items: center;
    }
    
    .connection-arrows {
        flex-direction: column;
        align-items: center;
        height: auto;
        margin: 20px 0;
        padding: 0;
    }
    
    .connection-arrow {
        margin: 10px 0;
        transform: rotate(90deg); /* Horizontal arrows on mobile */
    }
}

/* Input Styles */
.input-container {
    display: flex;
    gap: 10px;
    margin: 20px 0;
}

#guess-input {
    flex: 1;
    padding: 12px 15px;
    border: 2px solid var(--input-border);
    border-radius: 8px 0 0 8px;
    font-size: 1rem;
    outline: none;
    transition: border-color 0.3s;
    color: var(--text-color);
    background-color: var(--card-background);
}

#guess-input:focus {
    border-color: var(--primary-color);
}

#submit-guess {
    padding: 12px 20px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 0 8px 8px 0;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s;
}

#submit-guess:hover {
    background-color: var(--primary-hover);
}

#new-game-button {
    padding: 12px 20px;
    background-color: var(--success-color);
    color: white;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    transition: background-color 0.3s;
    margin-left: 10px;
}

#new-game-button:hover {
    background-color: #219653;
}

/* Message Styles */
.message {
    margin: 15px 0;
    padding: 10px;
    border-radius: 8px;
    font-weight: 500;
    transition: all 0.3s;
}

.message.success {
    background-color: rgba(39, 174, 96, 0.1);
    color: var(--success-color);
}

.message.error {
    background-color: rgba(231, 76, 60, 0.1);
    color: var(--error-color);
}

.message.info {
    background-color: rgba(52, 152, 219, 0.1);
    color: var(--primary-color);
}

/* Past Guesses Styles */
.past-guesses-container {
    margin-top: 20px;
    padding: 15px;
    border-radius: 10px;
    background-color: rgba(var(--primary-color-rgb), 0.05);
    transition: background-color 0.3s;
}

.past-guesses-container h3 {
    margin-top: 0;
    margin-bottom: 10px;
    color: var(--heading-color);
    font-size: 1.1rem;
}

#past-guesses-list {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-height: 200px;
    overflow-y: auto;
    padding: 5px;
}

.past-guess {
    padding: 8px 12px;
    border-radius: 6px;
    font-weight: 500;
    transition: all 0.3s;
    text-align: left;
    margin-bottom: 5px;
}

.past-guess.correct {
    background-color: rgba(39, 174, 96, 0.2);
    color: var(--success-color);
    border-left: 4px solid var(--success-color);
}

.past-guess.close {
    background-color: rgba(241, 196, 15, 0.2);
    color: #f1c40f;
    border-left: 4px solid #f1c40f;
}

.past-guess.incorrect {
    background-color: rgba(231, 76, 60, 0.2);
    color: var(--error-color);
    border-left: 4px solid var(--error-color);
}

.hot-cold-scale {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-top: 15px;
    padding-top: 10px;
    border-top: 1px solid var(--input-border);
}

.gradient-bar {
    height: 10px;
    flex-grow: 1;
    margin: 0 10px;
    border-radius: 5px;
    background: linear-gradient(to right, var(--error-color), #f1c40f, var(--success-color));
}

.scale-label {
    font-size: 0.8rem;
    color: var(--text-color);
    opacity: 0.7;
}

/* Tutorial Modal Styles */
.tutorial-modal {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--card-background);
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    padding: 30px;
    max-width: 500px;
    width: 90%;
    z-index: 1000;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.close-tutorial {
    position: absolute;
    top: 15px;
    right: 15px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    transition: color 0.3s;
}

.close-tutorial:hover {
    color: var(--primary-color);
}

.tutorial-content {
    margin-top: 20px;
}

.tutorial-step {
    display: flex;
    align-items: center;
    margin-bottom: 15px;
    padding: 10px;
    border-radius: 8px;
    background-color: rgba(var(--primary-color-rgb), 0.05);
    transition: background-color 0.3s;
}

.tutorial-icon-container {
    display: flex;
    justify-content: center;
    align-items: center;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background-color: var(--primary-color);
    color: white;
    margin-right: 15px;
    flex-shrink: 0;
}

.tutorial-text {
    flex: 1;
    text-align: left;
}

.tutorial-footer {
    margin-top: 20px;
    font-weight: bold;
    color: var(--success-color);
}

/* Settings Modal Styles */
.modal {
    display: none;
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background-color: var(--card-background);
    border-radius: 15px;
    box-shadow: var(--card-shadow);
    padding: 30px;
    max-width: 500px;
    width: 90%;
    z-index: 1000;
    transition: background-color 0.3s, box-shadow 0.3s;
}

.modal-content {
    position: relative;
}

.close-button {
    position: absolute;
    top: -10px;
    right: -10px;
    background: none;
    border: none;
    font-size: 1.5rem;
    color: var(--text-color);
    cursor: pointer;
    transition: color 0.3s;
}

.close-button:hover {
    color: var(--primary-color);
}

.settings-option {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.button {
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 5px;
    padding: 8px 16px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.3s;
    margin-top: 15px;
}

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

.switch {
    position: relative;
    display: inline-block;
    width: 50px;
    height: 24px;
}

.switch input {
    opacity: 0;
    width: 0;
    height: 0;
}

.slider {
    position: absolute;
    cursor: pointer;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--toggle-bg);
    transition: .4s;
}

.slider:before {
    position: absolute;
    content: "";
    height: 16px;
    width: 16px;
    left: 4px;
    bottom: 4px;
    background-color: white;
    transition: .4s;
}

input:checked + .slider {
    background-color: var(--primary-color);
}

input:focus + .slider {
    box-shadow: 0 0 1px var(--primary-color);
}

input:checked + .slider:before {
    transform: translateX(26px);
}

.slider.round {
    border-radius: 24px;
}

.slider.round:before {
    border-radius: 50%;
}

.modal-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: var(--modal-backdrop);
    z-index: 999;
}

/* Responsive Styles */
@media (max-width: 768px) {
    .game-container {
        padding: 20px;
        max-width: 95%;
    }
    
    h1 {
        font-size: 1.8rem;
    }
    
    .ladder-board {
        flex-direction: column;
    }
    
    .ladder-column {
        width: 100%;
    }
    
    .final-category-words {
        flex-direction: column;
    }
    
    .input-container {
        flex-direction: column;
    }
    
    #guess-input {
        border-radius: 8px;
        margin-bottom: 10px;
    }
    
    #submit-guess {
        border-radius: 8px;
    }
    
    #new-game-button {
        margin-left: 0;
        margin-top: 10px;
    }
}

@media (min-width: 769px) and (max-width: 1024px) {
    .ladder-board {
        flex-wrap: wrap;
    }
    
    .ladder-column {
        flex-basis: 48%;
        margin-bottom: 15px;
    }
}

/* Final Guess Indicators */
.final-guess-indicators {
    display: flex;
    justify-content: center;
    gap: 15px;
    margin: 20px 0;
}

.guess-indicator {
    width: 30px;
    height: 30px;
    border-radius: 5px;
    border: 2px solid var(--primary-color);
    background-color: var(--card-background);
    position: relative;
    transition: all 0.3s;
}

.guess-indicator.correct {
    background-color: rgba(39, 174, 96, 0.2);
    border-color: var(--success-color);
}

.guess-indicator.incorrect {
    background-color: rgba(231, 76, 60, 0.2);
    border-color: var(--error-color);
}

.guess-indicator.incorrect::before,
.guess-indicator.incorrect::after {
    content: '';
    position: absolute;
    width: 70%;
    height: 2px;
    background-color: var(--error-color);
    top: 50%;
    left: 15%;
    transform-origin: center;
}

.guess-indicator.incorrect::before {
    transform: rotate(45deg);
}

.guess-indicator.incorrect::after {
    transform: rotate(-45deg);
}

/* Ladder Connection Styles */
.ladder-connection-container {
    width: 100%;
    margin: 30px 0 20px;
    padding: 15px;
    border-radius: 10px;
    background-color: rgba(var(--primary-color-rgb), 0.05);
    transition: background-color 0.3s;
}

.connection-heading {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 20px;
    color: var(--primary-color);
    text-align: center;
}

.ladder-connection {
    display: flex;
    justify-content: space-around;
    flex-wrap: wrap;
    gap: 15px;
    position: relative;
}

.ladder-connection::after {
    content: '';
    position: absolute;
    top: 50%;
    left: 10%;
    right: 10%;
    height: 2px;
    background-color: var(--primary-color);
    z-index: 0;
}

.ladder-endpoint {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 1;
    position: relative;
}

.endpoint-category {
    font-size: 0.8rem;
    font-weight: bold;
    color: var(--primary-color);
    background-color: var(--card-background);
    padding: 5px 10px;
    border-radius: 15px;
    border: 1px solid var(--primary-color);
}

.endpoint-word {
    padding: 10px 15px;
    border-radius: 8px;
    background-color: var(--card-background);
    color: var(--text-color);
    border: 2px solid var(--primary-color);
    box-shadow: 0 2px 5px rgba(var(--primary-color-rgb), 0.2);
    font-weight: 500;
    min-width: 80px;
    text-align: center;
    position: relative;
}

.endpoint-word::after {
    content: '↓';
    position: absolute;
    bottom: -25px;
    left: 50%;
    transform: translateX(-50%);
    font-size: 1.5rem;
    color: var(--primary-color);
}

/* Responsive adjustments for the connection */
@media (max-width: 768px) {
    .ladder-connection {
        flex-direction: column;
        align-items: center;
    }
    
    .ladder-connection::after {
        top: 10%;
        bottom: 10%;
        left: 50%;
        right: auto;
        width: 2px;
        height: auto;
    }
    
    .endpoint-word::after {
        content: '→';
        bottom: auto;
        left: auto;
        right: -25px;
        top: 50%;
        transform: translateY(-50%);
    }
    
    .ladder-endpoint:last-child .endpoint-word::after {
        display: none;
    }
}

/* Highlighted Connection */
.word-slot.highlighted-connection {
    border: 2px solid var(--primary-color);
    box-shadow: 0 0 10px rgba(var(--primary-color-rgb), 0.4);
    position: relative;
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0% {
        box-shadow: 0 0 0 0 rgba(var(--primary-color-rgb), 0.4);
    }
    70% {
        box-shadow: 0 0 0 10px rgba(var(--primary-color-rgb), 0);
    }
    100% {
        box-shadow: 0 0 0 0 rgba(var(--primary-color-rgb), 0);
    }
}

/* Connection Arrows */
.connection-arrows {
    width: 100%;
    margin: 20px 0;
    text-align: center;
}

.connection-heading {
    font-weight: bold;
    font-size: 1.2rem;
    margin-bottom: 15px;
    color: var(--primary-color);
    text-align: center;
}

.arrows {
    display: flex;
    justify-content: space-around;
    padding: 0 10%;
}

.connection-arrow {
    font-size: 2rem;
    color: var(--primary-color);
    animation: bounce 1s infinite alternate;
}

@keyframes bounce {
    from { transform: translateY(0); }
    to { transform: translateY(10px); }
}

/* Auth UI Styles */
.user-display {
    color: var(--primary-color);
    font-weight: bold;
    margin-right: 10px;
}

.user-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
}

.auth-modal {
    max-width: 400px;
    padding: 30px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--text-color);
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    font-size: 16px;
    background-color: var(--card-background);
    color: var(--text-color);
}

.auth-button {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
    transition: background-color 0.3s;
}

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

.auth-message {
    margin-top: 15px;
    font-size: 14px;
    min-height: 20px;
    color: var(--text-color);
}

/* Auth Modal Styles */
.auth-button {
    width: 100%;
    padding: 12px;
    background-color: var(--primary-color);
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 16px;
    margin-top: 10px;
    transition: background-color 0.3s;
}

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

.auth-message {
    margin-top: 15px;
    font-size: 14px;
    min-height: 20px;
    color: var(--text-color);
}

.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
    font-weight: bold;
    color: var(--text-color);
}

.form-group input {
    width: 100%;
    padding: 10px;
    border: 1px solid var(--input-border);
    border-radius: 4px;
    font-size: 16px;
    background-color: var(--card-background);
    color: var(--text-color);
}

/* Results Modal Styles */
.results-summary {
    margin: 20px 0;
    padding: 15px;
    border-radius: 10px;
    background-color: rgba(var(--primary-color-rgb), 0.05);
    text-align: center;
}

.results-header {
    display: flex;
    justify-content: space-between;
    margin-bottom: 15px;
    font-weight: bold;
}

.emoji-summary {
    font-family: monospace;
    font-size: 1.2rem;
    line-height: 1.5;
    white-space: pre-wrap;
    margin: 15px 0;
    padding: 10px;
    background-color: var(--card-background);
    border-radius: 8px;
    border: 1px solid var(--input-border);
}

.guess-summary {
    font-size: 1.1rem;
    margin: 10px 0;
    font-weight: bold;
}

.share-container {
    display: flex;
    flex-direction: column;
    align-items: center;
    margin: 15px 0;
}

.share-message {
    margin-top: 10px;
    color: var(--success-color);
    font-size: 0.9rem;
    height: 20px;
}

#guess-counter {
    margin: 15px 0;
    font-weight: bold;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.guess-boxes {
    display: flex;
    gap: 10px;
    margin-top: 5px;
}

.guess-box {
    width: 30px;
    height: 30px;
    border: 2px solid var(--input-border);
    border-radius: 5px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: bold;
    font-size: 1.2rem;
}

.guess-box.correct {
    background-color: rgba(39, 174, 96, 0.2);
    border-color: var(--success-color);
    color: var(--success-color);
}

.guess-box.incorrect {
    background-color: rgba(231, 76, 60, 0.2);
    border-color: var(--error-color);
    color: var(--error-color);
}