:root {
    --bg-dark: #0d0a1a;
    --card-bg: #1a1a2e;
    --accent-purple: #8a2be2;
    --accent-cyan: #64ffda;
    --text-light: #e0e0e0;
    --text-muted: #b0b0b0;
    --border-glow: #64ffda;
    --button-primary: #8a2be2;
    --button-secondary: #4a4a6b;
    --hover-primary: #a040f0;
    --hover-secondary: #5a5a7d;
}

body {
    font-family: 'Oxanium', sans-serif;
    margin: 0;
    padding: 0;
    background-color: var(--bg-dark);
    color: var(--text-light);
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    overflow-x: hidden; /* Hide horizontal overflow for the entire body */
    position: relative;
    box-sizing: border-box;
}

/* Background grid effect */
.background-grid {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image:
        linear-gradient(to right, rgba(100, 255, 218, 0.08) 1px, transparent 1px),
        linear-gradient(to bottom, rgba(100, 255, 218, 0.08) 1px, transparent 1px);
    background-size: 50px 50px;
    opacity: 0.2;
    z-index: -1;
    animation: grid-pan 60s linear infinite;
}

@keyframes grid-pan {
    0% {
        background-position: 0 0;
    }
    100% {
        background-position: -500px -500px; /* Pan 10 units of 50px grid */
    }
}


.container {
    background-color: var(--card-bg);
    padding: 30px 40px;
    border-radius: 15px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.5), 0 0 20px var(--accent-purple);
    text-align: center;
    max-width: 650px;
    width: calc(100% - 40px); /* Adjust width to account for body padding on small screens */
    border: 1px solid var(--accent-purple);
    position: relative;
    z-index: 1; /* Ensure content is above background grid */
    margin: 20px; /* Add some margin around the container */
    box-sizing: border-box;
}

h1 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    margin-bottom: 25px;
    font-size: 2.5em;
    text-shadow: 0 0 15px var(--accent-cyan), 0 0 25px rgba(100, 255, 218, 0.4);
    animation: pulsateGlow 2s infinite alternate;
}

@keyframes pulsateGlow {
    0% {
        text-shadow: 0 0 10px var(--accent-cyan), 0 0 15px rgba(100, 255, 218, 0.2);
    }
    100% {
        text-shadow: 0 0 15px var(--accent-cyan), 0 0 25px rgba(100, 255, 218, 0.4);
    }
}

.category-selection {
    margin-bottom: 25px;
}

.category-selection label {
    font-size: 1.1em;
    color: var(--text-light);
    margin-bottom: 12px;
    display: block;
    font-weight: 500;
}

.radio-group {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
}

.radio-group input[type="radio"] {
    display: none;
}

.radio-group label {
    background-color: var(--button-secondary);
    color: var(--text-light);
    padding: 7px 12px;
    border-radius: 20px;
    cursor: pointer;
    transition: background-color 0.3s ease, box-shadow 0.3s ease, transform 0.2s ease;
    font-size: 0.9em;
    border: 1px solid transparent;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    min-width: 80px;
    height: 35px;
    box-sizing: border-box;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.radio-group input[type="radio"]:checked + label {
    background-color: var(--accent-purple);
    border-color: var(--border-glow);
    box-shadow: 0 0 15px rgba(138, 43, 226, 0.7);
    transform: translateY(-2px);
    font-weight: 700;
}

.radio-group label:hover {
    background-color: var(--hover-secondary);
    box-shadow: 0 0 10px rgba(100, 255, 218, 0.3);
}

.action-button {
    border: none;
    padding: 14px 30px;
    border-radius: 8px;
    font-size: 1.15em;
    cursor: pointer;
    transition: background-color 0.3s ease, transform 0.2s ease, box-shadow 0.3s ease;
    font-weight: 700;
    letter-spacing: 0.5px;
    text-transform: uppercase;
}

.primary-button {
    background-color: var(--button-primary);
    color: white;
    margin-top: 25px;
    margin-bottom: 25px;
    box-shadow: 0 5px 15px rgba(138, 43, 226, 0.4);
}

.primary-button:hover {
    background-color: var(--hover-primary);
    transform: translateY(-3px);
    box-shadow: 0 8px 20px rgba(138, 43, 226, 0.6);
}

.output-area {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 15px;
    margin-bottom: 20px;
    flex-wrap: wrap;
}

#generatedNickname {
    background-color: var(--bg-dark);
    border: 1px solid var(--border-glow);
    border-radius: 8px;
    color: var(--accent-cyan);
    font-family: 'Impact', Bold;
    font-size: 1.6em;
    padding: 8px 15px;
    text-align: center;
    min-width: 180px;
    flex-grow: 1;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 10px rgba(100, 255, 218, 0.5);
    transition: box-shadow 0.3s ease;
    box-sizing: border-box;
}

#generatedNickname:focus {
    outline: none;
    box-shadow: 0 0 15px rgba(100, 255, 218, 0.8), 0 0 25px rgba(100, 255, 218, 0.3);
}

.secondary-button {
    background-color: var(--button-secondary);
    color: var(--text-light);
    box-shadow: 0 3px 10px rgba(0, 0, 0, 0.2);
    min-width: 100px;
}

.secondary-button:hover {
    background-color: var(--hover-secondary);
    transform: translateY(-2px);
    box-shadow: 0 5px 12px rgba(0, 0, 0, 0.3);
}

.instruction-text {
    font-size: 0.9em;
    color: var(--text-muted);
    margin-top: 15px;
}

/* --- NEW STYLES FOR FILTERS AND MARKOV ORDER --- */
.filter-options {
    margin-top: 25px;
    margin-bottom: 25px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    padding: 0 10px;
}

.filter-group {
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-start;
}

.filter-group label {
    flex-shrink: 0;
    min-width: 90px;
    text-align: right;
    font-size: 1em;
    color: var(--text-light);
    margin-bottom: 0;
}

.filter-group input[type="number"],
.filter-group input[type="text"] {
    flex-grow: 1;
    max-width: 250px;
    background-color: var(--bg-dark);
    border: 1px solid var(--border-glow);
    border-radius: 5px;
    color: var(--text-light);
    font-family: 'Oxanium', sans-serif;
    font-size: 0.95em;
    padding: 8px 10px;
    box-sizing: border-box;
    min-width: 80px;
}

.filter-group input:focus {
    outline: none;
    box-shadow: 0 0 8px rgba(100, 255, 218, 0.5);
}

#includesText {
    min-width: 150px;
}

.markov-order-selection {
    margin-bottom: 25px;
    display: flex;
    align-items: center;
    gap: 10px;
    flex-wrap: wrap;
    justify-content: flex-start;
    padding: 0 10px;
}

.markov-order-selection label {
    flex-shrink: 0;
    min-width: 90px;
    text-align: right;
    font-size: 1em;
    color: var(--text-light);
    margin-bottom: 0;
}

.markov-order-selection input[type="range"] {
    flex-grow: 1;
    max-width: 250px;
    height: 10px;
    -webkit-appearance: none;
    appearance: none;
    background: var(--button-secondary);
    border-radius: 5px;
    outline: none;
    margin: 0;
}

.markov-order-selection input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: var(--accent-purple);
    cursor: grab;
    border: 2px solid var(--border-glow);
    box-shadow: 0 0 5px var(--accent-purple);
    transition: background-color 0.2s, box-shadow 0.2s;
}

.markov-order-selection input[type="range"]::-webkit-slider-thumb:hover {
    background: var(--hover-primary);
    box-shadow: 0 0 8px var(--border-glow);
}

.markov-order-selection span {
    font-size: 1em;
    color: var(--accent-cyan);
    font-weight: bold;
    min-width: 20px;
    text-align: left;
}


/* Responsive Adjustments */
@media (max-width: 768px) {
    .container {
        padding: 25px;
        max-width: 90%;
    }
    h1 {
        font-size: 2em;
    }
    .radio-group {
        gap: 10px;
    }
    .radio-group label {
        font-size: 0.8em;
        padding: 6px 10px;
        height: 30px;
    }
    .output-area {
        flex-direction: column;
    }
    #generatedNickname {
        width: 100%;
        margin-bottom: 15px;
    }
    .primary-button {
        margin-top: 20px;
        margin-bottom: 20px;
    }
}

@media (max-width: 580px) {
    .radio-group {
        gap: 8px;
    }
    .radio-group label {
        font-size: 0.9em;
        height: 35px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 15px;
        margin: 0 10px;
        width: calc(100% - 20px);
    }
    h1 {
        font-size: 1.6em;
        margin-bottom: 20px;
    }
    .action-button {
        padding: 10px 18px;
        font-size: 0.95em;
    }
    #generatedNickname {
        width: calc(100% - 2px);
        min-width: unset;
        font-size: 1.3em;
        height: 45px;
        padding: 8px 10px;
    }
    .radio-group {
        gap: 8px;
    }
    .radio-group label {
        height: 40px;
        font-size: 1em;
    }
    .instruction-text {
        font-size: 0.8em;
    }

    /* Responsive filter adjustments */
    .filter-group,
    .markov-order-selection {
        flex-direction: column;
        align-items: flex-start;
        gap: 5px;
    }

    .filter-group label,
    .markov-order-selection label {
        text-align: left;
        min-width: auto;
    }

    .filter-group input[type="number"],
    .filter-group input[type="text"],
    .markov-order-selection input[type="range"] {
        max-width: 100%;
        width: 100%;
    }
}

#userWordsContainer {
    text-align: left;
}

#userWords {
    width: calc(100% - 20px);
    padding: 10px;
    margin-top: 10px;
    border: 1px solid var(--border-glow);
    border-radius: 8px;
    background-color: var(--bg-dark);
    color: var(--text-light);
    font-family: 'Oxanium', sans-serif;
    font-size: 1em;
    resize: vertical;
    box-sizing: border-box;
}

#userWords:focus {
    outline: none;
    box-shadow: 0 0 10px rgba(100, 255, 218, 0.5);
}

.saved-nicknames-section {
    margin-top: 30px;
    padding: 20px 30px;
    max-width: 650px;
    width: calc(100% - 40px);
}

.saved-nicknames-section h2 {
    font-family: 'Orbitron', sans-serif;
    color: var(--accent-cyan);
    font-size: 1.8em;
    margin-bottom: 20px;
    text-shadow: 0 0 10px var(--accent-cyan);
}

.saved-nicknames-list {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    justify-content: center;
}

.saved-nickname-item {
    background-color: var(--button-secondary);
    color: var(--text-light);
    padding: 8px 15px;
    border-radius: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
    border: 1px solid var(--accent-purple);
    font-size: 0.9em;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

.delete-nickname-btn {
    background-color: #ff4d4d;
    color: white;
    border: none;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8em;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.delete-nickname-btn:hover {
    background-color: #cc0000;
}

/* Responsive adjustments for saved nicknames section */
@media (max-width: 768px) {
    .saved-nicknames-section {
        padding: 15px 20px;
    }
    .saved-nicknames-section h2 {
        font-size: 1.6em;
    }
    .saved-nickname-item {
        font-size: 0.85em;
        padding: 6px 12px;
    }
}

@media (max-width: 480px) {
    .saved-nicknames-section {
        padding: 10px 15px;
        margin: 20px 10px;
        width: calc(100% - 20px);
    }
    .saved-nicknames-section h2 {
        font-size: 1.4em;
        margin-bottom: 15px;
    }
    .saved-nickname-item {
        font-size: 0.8em;
        padding: 5px 10px;
    }
}