:root {
    --bg-color: #1a1a1a;
    --text-color: #ffffff;
    --cell-border: #3498db;
    --cell-bg: rgba(52, 152, 219, 0.1);
    --cell-glow: rgba(52, 152, 219, 0.5);
    --comparing-glow: rgba(231, 76, 60, 0.5);
    --sorted-glow: rgba(46, 204, 113, 0.5);
}

[data-theme="light"] {
    --bg-color: #f5f5f5;
    --text-color: #2c3e50;
    --cell-border: #2980b9;
    --cell-bg: rgba(41, 128, 185, 0.1);
    --cell-glow: rgba(41, 128, 185, 0.3);
    --comparing-glow: rgba(192, 57, 43, 0.3);
    --sorted-glow: rgba(39, 174, 96, 0.3);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    min-height: 100vh;
    margin: 0;
    padding: 0;
    background-color: var(--bg-color);
    transition: background-color 0.3s ease;
    line-height: 1.6;
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
    overflow-x: hidden;
    padding: 10px;
}

.container {
    width: 98%;
    max-width: 1400px;
    margin: 10px auto;
    text-align: center;
    padding: 15px 25px;
    border-radius: 15px;
    background-color: rgba(255, 255, 255, 0.05);
    backdrop-filter: blur(10px);
    transition: all 0.3s ease;
    display: flex;
    flex-direction: column;
    min-height: calc(100vh - 20px);
}

/* Add theme-specific shadows */
[data-theme="light"] .container {
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.15),
                0 4px 16px rgba(0, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.9);
}

[data-theme="dark"] .container {
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    background-color: rgba(255, 255, 255, 0.05);
}

h1 {
    color: var(--text-color);
    margin: 10px 0 10px;
    font-size: 2.5em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 2px;
    padding: 0;
}

.input-section {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 15px;
    margin-bottom: 20px;
}

input[type="text"] {
    width: 100%;
    max-width: 400px;
    padding: 12px 20px;
    margin: 10px 0;
    border: 2px solid var(--cell-border);
    border-radius: 8px;
    font-size: 1em;
    background-color: var(--cell-bg);
    color: var(--text-color);
    transition: all 0.3s ease;
}

input[type="text"]:focus {
    outline: none;
    box-shadow: 0 0 5px var(--cell-glow);
    border-color: var(--cell-border);
}

.button {
    padding: 12px 24px;
    margin: 5px;
    border: none;
    border-radius: 8px;
    background-color: #4CAF50;
    color: white;
    cursor: pointer;
    transition: all 0.3s ease;
    font-size: 1em;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.button:hover {
    background-color: #45a049;
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
}

.button:disabled {
    background-color: #cccccc;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.button.reset {
    background-color: #e74c3c;
}

.button.reset:hover {
    background-color: #c0392b;
}

.button.generate {
    background-color: #9b59b6;
}

.button.generate:hover {
    background-color: #8e44ad;
}

.visualization {
    display: flex;
    justify-content: center;
    align-items: center;
    margin: 10px auto;
    gap: 20px;
    padding: 20px;
    min-height: 100px;
    width: 90%;
    max-width: 1200px;
}

.cell {
    width: 60px;
    height: 60px;
    border: 2px solid var(--cell-border);
    display: flex;
    justify-content: center;
    align-items: center;
    font-size: 1.2em;
    font-weight: bold;
    background-color: var(--cell-bg);
    color: var(--text-color);
    border-radius: 12px;
    box-shadow: 0 0 5px var(--cell-glow),
                inset 0 0 5px var(--cell-glow);
    transition: background-color 0.3s ease;
}

.comparing {
    background-color: #e74c3c;
    color: white;
    transform: scale(1.05);
    border-color: #e74c3c;
    box-shadow: 0 0 10px var(--comparing-glow),
                inset 0 0 10px var(--comparing-glow);
    z-index: 1;
}

.sorted {
    background-color: #2ecc71;
    color: white;
    border-color: #2ecc71;
    box-shadow: 0 0 10px var(--sorted-glow),
                inset 0 0 10px var(--sorted-glow);
}

.message {
    margin-top: 10px;
    color: var(--text-color);
    padding: 15px;
    border-radius: 8px;
    margin-bottom: 10px;
    transition: all 0.3s ease;
}

/* Theme-specific styles for message */
[data-theme="light"] .message {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1),
                0 2px 8px rgba(0, 0, 0, 0.08);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .message {
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.theme-toggle {
    position: fixed;
    top: 15px;
    right: 15px;
    background: var(--bg-color);
    border: 2px solid var(--text-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    z-index: 1000;
    padding: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.theme-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px var(--cell-glow);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    fill: var(--text-color);
}

.speed-control {
    margin: 5px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.speed-control label {
    color: var(--text-color);
}

.speed-control input[type="range"] {
    width: 200px;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to { opacity: 1; transform: translateY(0); }
}

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

@keyframes swapLeft {
    0% { transform: translateX(0); }
    50% { transform: translateX(-75px); }
    100% { transform: translateX(0); }
}

@keyframes swapRight {
    0% { transform: translateX(0); }
    50% { transform: translateX(75px); }
    100% { transform: translateX(0); }
}

/* Enhance core responsive styles */
@media (max-width: 1200px) {
    .container {
        width: 98%;
        padding: 20px 15px;
    }

    .visualization {
        gap: 15px;
    }

    .cell {
        width: 50px;
        height: 50px;
        font-size: 1.1em;
    }
}

@media (max-width: 768px) {
    .container {
        width: 98%;
        padding: 15px 10px;
    }

    .cell {
        width: 45px;
        height: 45px;
        font-size: 1em;
    }

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

    input[type="text"] {
        width: 180px;
        padding: 8px;
        font-size: 0.9em;
    }

    .array-size-control input[type="number"] {
        width: 50px;
        padding: 8px;
    }

    .speed-control input[type="range"] {
        width: 140px;
    }

    .legend {
        font-size: 0.9em;
        padding: 8px;
    }
}

@media (max-width: 480px) {
    .container {
        width: 99%;
        padding: 10px 5px;
    }

    .cell {
        width: 40px;
        height: 40px;
        font-size: 0.9em;
        margin: 2px;
    }

    .button {
        padding: 8px 12px;
        font-size: 0.9em;
        min-width: 70px;
    }

    input[type="text"] {
        width: 150px;
        padding: 6px;
        font-size: 0.85em;
    }

    .array-size-control {
        font-size: 0.85em;
    }

    .array-size-control input[type="number"] {
        width: 45px;
        padding: 6px;
    }

    .speed-control {
        font-size: 0.85em;
    }

    .speed-control input[type="range"] {
        width: 120px;
    }

    .legend {
        font-size: 0.8em;
        padding: 6px;
    }

    .stats {
        font-size: 0.85em;
    }

    h1 {
        font-size: 1.8em;
        margin: 5px 0 10px;
    }

    .footer {
        width: 100%;
        padding: 15px 5px;
    }

    .social-links {
        gap: 10px;
        flex-wrap: wrap;
        padding: 0 5px;
    }

    .social-link {
        padding: 6px 12px;
        font-size: 0.9em;
    }

    .copyright {
        font-size: 0.8em;
        padding: 0 5px;
    }
}

@media (max-width: 350px) {
    .cell {
        width: 35px;
        height: 35px;
        font-size: 0.8em;
        margin: 1px;
    }

    .button {
        padding: 6px 12px;
        font-size: 0.8em;
        min-width: 60px;
    }

    input[type="text"] {
        width: 130px;
        font-size: 0.8em;
    }

    .array-size-control input[type="number"] {
        width: 40px;
    }

    .speed-control input[type="range"] {
        width: 100px;
    }

    h1 {
        font-size: 1.5em;
    }
    
    .social-links {
        gap: 5px;
    }
    
    .social-link {
        padding: 5px 10px;
        font-size: 0.8em;
    }
}

/* Add better touch support for mobile */
@media (hover: none) {
    .button {
        padding-top: 12px;    /* Larger touch target */
        padding-bottom: 12px;
    }

    input[type="range"] {
        height: 25px;  /* Larger touch target for slider */
    }

    .cell {
        touch-action: none;  /* Prevent unwanted touch behaviors */
    }
}

/* Add legend styles */
.legend {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 5px 0;
    padding: 10px;
    border-radius: 8px;
    transition: all 0.3s ease;
}

.legend-item {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--text-color);
}

.legend-color {
    width: 20px;
    height: 20px;
    border-radius: 4px;
}

.legend-color.comparing {
    background-color: #e74c3c;
}

.legend-color.sorted {
    background-color: #2ecc71;
}

/* Add confetti styles */
.confetti {
    position: fixed;
    width: 10px;
    height: 10px;
    background-color: #f0f;
    top: -10px;
    z-index: 999;
    pointer-events: none;
    overflow: hidden;
}

/* Theme-specific legend styles */
[data-theme="light"] .legend {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.1);
    border: 1px solid rgba(0, 0, 0, 0.05);
}

[data-theme="dark"] .legend {
    background-color: rgba(255, 255, 255, 0.05);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.1);
}

/* Add random array size control */
.array-size-control {
    margin: 15px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.array-size-control label {
    color: var(--text-color);
}

.array-size-control input[type="number"] {
    width: 60px;
    padding: 5px;
    border-radius: 4px;
    border: 1px solid var(--cell-border);
    background: var(--bg-color);
    color: var(--text-color);
}

/* Update footer styles */
.footer {
    margin-top: auto;
    padding-top: 20px;
    text-align: center;
    border-top: 1px solid var(--cell-border);
    transition: all 0.3s ease;
    color: var(--text-color);
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin: 15px 0;
}

.social-link {
    color: var(--text-color);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 15px;
    border-radius: 20px;
    transition: all 0.3s ease;
    background: rgba(255, 255, 255, 0.05);
}

.social-link:hover {
    transform: translateY(-3px);
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.2);
    background: var(--cell-border);
}

.social-link svg {
    width: 20px;
    height: 20px;
    fill: currentColor;
}

.copyright {
    font-size: 0.9em;
    color: var(--text-color);
    opacity: 0.8;
    margin-top: 15px;
}

.heart {
    color: #e74c3c;
    display: inline-block;
    animation: pulse 1.5s infinite;
    opacity: 1;
}

@keyframes pulse {
    0% { transform: scale(1); }
    50% { transform: scale(1.2); }
    100% { transform: scale(1); }
}

/* Add navigation buttons container */
.nav-buttons {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin: 10px 0;
}

.primary-buttons {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
}

@media (max-width: 768px) {
    .nav-buttons {
        flex-direction: row; /* Keep horizontal on tablets */
        gap: 8px;
    }
}

@media (max-width: 480px) {
    .nav-buttons {
        flex-direction: row; /* Keep horizontal on mobile */
        gap: 5px;
    }

    .button {
        padding: 8px 12px;
        font-size: 0.9em;
    }
}

/* Update control layouts */
.input-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 10px;
    margin: 15px 0;
    flex-wrap: wrap;
}

.controls-row {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 20px;
    margin-top: 10px;
    flex-wrap: wrap;
    border-top: 1px solid var(--cell-border);
    padding-top: 20px;
}

@media (max-width: 768px) {
    .input-row {
        gap: 8px;
    }
    .controls-row {
        gap: 15px;
    }
}

@media (max-width: 480px) {
    .input-row {
        gap: 5px;
    }
    .controls-row {
        gap: 10px;
    }
}

/* Add home button styles */
.home-button {
    position: fixed;
    top: 15px;
    left: 15px;
    background: var(--bg-color);
    border: 2px solid var(--text-color);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
    backdrop-filter: blur(5px);
    z-index: 1000;
    padding: 8px;
    box-shadow: 0 2px 5px rgba(0, 0, 0, 0.2);
}

.home-button:hover {
    transform: scale(1.1);
    box-shadow: 0 0 10px var(--cell-glow);
}

.home-button svg {
    width: 20px;
    height: 20px;
    fill: var(--text-color);
}

/* Add responsive styles for home button */
@media (max-width: 768px) {
    .home-button {
        width: 35px;
        height: 35px;
        padding: 6px;
    }
}

@media (max-width: 480px) {
    .home-button {
        width: 32px;
        height: 32px;
        padding: 5px;
        top: 10px;
        left: 10px;
    }

    .home-button svg {
        width: 18px;
        height: 18px;
    }
}