/* Reset and Base Styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #0f0f23 0%, #1a1a2e 50%, #16213e 100%);
    color: #e2e8f0;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    line-height: 1.6;
}

/* Header Styles */
header {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(148, 163, 184, 0.1);
    padding: 24px 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.controls {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 24px;
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 20px;
    align-items: end;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.control-group label {
    font-size: 12px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: #94a3b8;
    margin-bottom: 0;
}

.controls input[type="number"],
.controls select {
    padding: 12px 16px;
    border: 2px solid rgba(148, 163, 184, 0.2);
    border-radius: 8px;
    font-size: 14px;
    font-weight: 500;
    background: rgba(30, 41, 59, 0.8);
    color: #e2e8f0;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
}

.controls input[type="number"]:focus,
.controls select:focus {
    border-color: #3b82f6;
    outline: none;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
    background: rgba(30, 41, 59, 1);
}

.controls button {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border: none;
    padding: 12px 24px;
    font-weight: 600;
    font-size: 14px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    box-shadow: 0 4px 14px rgba(59, 130, 246, 0.3);
}

.controls button:hover {
    background: linear-gradient(135deg, #2563eb 0%, #1e40af 100%);
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
}

.controls button:disabled {
    background: #64748b;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.6;
}



/* Main Content */
main {
    flex: 1;
    position: relative;
    background: radial-gradient(ellipse at center, rgba(59, 130, 246, 0.05) 0%, transparent 70%);
    overflow: hidden;
    padding: 40px 24px;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: calc(100vh - 120px);
}

/* Visualization Elements */
.box {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    font-weight: 700;
    border-radius: 12px;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 60px;
    height: 60px;
    user-select: none;
    font-size: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeIn 0.6s ease-in-out;
}

.bar {
    position: absolute;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    font-weight: 700;
    border-radius: 8px 8px 0 0;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.4);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    width: 24px;
    bottom: 0;
    user-select: none;
    font-size: 12px;
    display: flex;
    justify-content: center;
    align-items: flex-end;
    padding-bottom: 8px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.sized-box {
    position: absolute;
    display: flex;
    justify-content: center;
    align-items: center;
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    font-weight: 700;
    border-radius: 12px;
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.5);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    user-select: none;
    font-size: 14px;
    border: 2px solid rgba(255, 255, 255, 0.15);
    backdrop-filter: blur(5px);
}

/* Animation States */
.box.sorted,
.bar.sorted,
.sized-box.sorted {
    background: linear-gradient(135deg, #10b981 0%, #059669 100%);
    box-shadow: 0 8px 32px rgba(16, 185, 129, 0.6);
    animation: pulse 0.6s ease-in-out;
}

.box.comparing,
.bar.comparing,
.sized-box.comparing {
    background: linear-gradient(135deg, #ef4444 0%, #dc2626 100%);
    box-shadow: 0 8px 32px rgba(239, 68, 68, 0.6);
    animation: shake 0.3s ease-in-out;
}

.box.swapping,
.bar.swapping,
.sized-box.swapping {
    background: linear-gradient(135deg, #f59e0b 0%, #d97706 100%);
    box-shadow: 0 8px 32px rgba(245, 158, 11, 0.6);
    animation: bounce 0.4s ease-in-out;
}

/* Keyframe Animations */
@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    25% { transform: translateX(-2px); }
    75% { transform: translateX(2px); }
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-4px); }
}

@keyframes fadeIn {
    0% { opacity: 0; transform: scale(0.8); }
    100% { opacity: 1; transform: scale(1); }
}

@keyframes randomize {
    0% { transform: scale(1) rotate(0deg); opacity: 1; }
    25% { transform: scale(1.2) rotate(90deg); opacity: 0.8; }
    50% { transform: scale(0.8) rotate(180deg); opacity: 0.6; }
    75% { transform: scale(1.1) rotate(270deg); opacity: 0.8; }
    100% { transform: scale(1) rotate(360deg); opacity: 1; }
}

@keyframes shuffle {
    0% { transform: translate(0, 0) scale(1); }
    20% { transform: translate(10px, -10px) scale(1.05); }
    40% { transform: translate(-10px, 10px) scale(0.95); }
    60% { transform: translate(5px, -5px) scale(1.02); }
    80% { transform: translate(-5px, 5px) scale(0.98); }
    100% { transform: translate(0, 0) scale(1); }
}

.randomizing {
    animation: randomize 0.8s cubic-bezier(0.68, -0.55, 0.265, 1.55) forwards;
}

.shuffling {
    animation: shuffle 0.6s ease-in-out;
}

/* Algorithm Description Section */
#algorithmDescription {
    background: rgba(15, 23, 42, 0.95);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    padding: 40px 24px;
    max-width: 1400px;
    margin: 0 auto;
}

#algorithmDescription h2 {
    color: #e2e8f0;
    font-size: 28px;
    font-weight: 700;
    margin-bottom: 20px;
    text-align: center;
}

#algorithmDescription h3 {
    color: #e2e8f0;
    font-size: 22px;
    font-weight: 600;
    margin: 30px 0 20px 0;
    text-align: center;
}

#description {
    color: #cbd5e1;
    font-size: 22px;
    line-height: 1.8;
    margin-bottom: 40px;
    text-align: justify;
    max-width: 900px;
    margin-left: auto;
    margin-right: auto;
    font-weight: 500;
    font-family: 'Georgia', 'Times New Roman', serif;
}

/* Code Viewer Container */
.code-viewer {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.9) 100%);
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 30px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.code-viewer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6 0%, #1d4ed8 50%, #7c3aed 100%);
}

/* Language Tabs */
.language-tabs {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 24px;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.language-tab {
    background: rgba(15, 23, 42, 0.8);
    border: 2px solid rgba(148, 163, 184, 0.3);
    color: #94a3b8;
    padding: 10px 20px;
    border-radius: 25px;
    cursor: pointer;
    font-size: 14px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    display: flex;
    align-items: center;
    gap: 8px;
    position: relative;
    backdrop-filter: blur(10px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
}

.language-tab::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, rgba(59, 130, 246, 0.1) 0%, rgba(147, 51, 234, 0.1) 100%);
    border-radius: 23px;
    opacity: 0;
    transition: opacity 0.3s ease;
}

.language-tab:hover {
    border-color: rgba(59, 130, 246, 0.6);
    color: #3b82f6;
    transform: translateY(-2px);
    box-shadow: 0 8px 20px rgba(59, 130, 246, 0.3);
}

.language-tab:hover::before {
    opacity: 1;
}

.language-tab.active {
    background: linear-gradient(135deg, #3b82f6 0%, #1d4ed8 100%);
    color: white;
    border-color: #3b82f6;
    box-shadow: 0 8px 25px rgba(59, 130, 246, 0.5);
    transform: translateY(-2px);
}

.language-tab.active::before {
    opacity: 0;
}

/* Code Display */
.code-display {
    background: rgba(15, 23, 42, 0.95);
    border-radius: 12px;
    padding: 24px;
    overflow-x: auto;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #e2e8f0;
    border: 1px solid rgba(148, 163, 184, 0.2);
    position: relative;
    backdrop-filter: blur(10px);
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.2);
}

.code-display pre {
    margin: 0;
    white-space: pre-wrap;
    word-wrap: break-word;
    position: relative;
    z-index: 1;
}

/* Syntax Highlighting - Custom Theme */
.code-display pre {
    color: #f8f8f2;
    line-height: 1.8;
    font-size: 15px;
}

.code-display pre code {
    color: #f8f8f2;
}

/* Prism.js Custom Theme Overrides */
.code-display .token.comment,
.code-display .token.prolog,
.code-display .token.doctype,
.code-display .token.cdata {
    color: #6272a4;
    font-style: italic;
}

.code-display .token.punctuation {
    color: #f8f8f2;
}

.code-display .token.property,
.code-display .token.tag,
.code-display .token.constant,
.code-display .token.symbol,
.code-display .token.deleted {
    color: #ff79c6;
}

.code-display .token.boolean,
.code-display .token.number {
    color: #bd93f9;
}

.code-display .token.selector,
.code-display .token.attr-name,
.code-display .token.string,
.code-display .token.char,
.code-display .token.builtin,
.code-display .token.inserted {
    color: #50fa7b;
}

.code-display .token.operator,
.code-display .token.entity,
.code-display .token.url,
.code-display .token.variable {
    color: #ff79c6;
}

.code-display .token.atrule,
.code-display .token.attr-value,
.code-display .token.function,
.code-display .token.class-name {
    color: #f1fa8c;
}

.code-display .token.keyword {
    color: #8be9fd;
    font-weight: bold;
}

.code-display .token.regex,
.code-display .token.important {
    color: #ffb86c;
}



/* Code Editor Container */
.code-editor-container {
    background: linear-gradient(135deg, rgba(30, 41, 59, 0.9) 0%, rgba(15, 23, 42, 0.9) 100%);
    border: 2px solid rgba(59, 130, 246, 0.3);
    border-radius: 16px;
    padding: 24px;
    margin-bottom: 30px;
    backdrop-filter: blur(20px);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
    position: relative;
    overflow: hidden;
}

.code-editor-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, #3b82f6 0%, #1d4ed8 50%, #7c3aed 100%);
}

#codeEditor {
    width: 100%;
    height: 300px;
    background: rgba(15, 23, 42, 0.95);
    border: 1px solid rgba(148, 163, 184, 0.2);
    border-radius: 12px;
    padding: 16px;
    font-family: 'JetBrains Mono', 'Fira Code', 'Courier New', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #e2e8f0;
    resize: vertical;
    outline: none;
    transition: all 0.3s ease;
    backdrop-filter: blur(10px);
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.2);
}

#codeEditor:focus {
    border-color: #3b82f6;
    box-shadow: inset 0 2px 10px rgba(0, 0, 0, 0.2), 0 0 0 3px rgba(59, 130, 246, 0.1);
}

#codeEditor::placeholder {
    color: #64748b;
    font-style: italic;
}

/* Footer */
footer {
    background: linear-gradient(135deg, rgba(15, 23, 42, 0.98) 0%, rgba(30, 41, 59, 0.95) 50%, rgba(15, 23, 42, 0.98) 100%);
    backdrop-filter: blur(20px);
    border-top: 1px solid rgba(148, 163, 184, 0.1);
    padding: 40px 0;
    text-align: center;
    width: 100%;
    position: relative;
    overflow: hidden;
    box-shadow: 0 -8px 32px rgba(0, 0, 0, 0.3);
}

footer::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, transparent 0%, #3b82f6 15%, #7c3aed 35%, #ec4899 50%, #7c3aed 65%, #3b82f6 85%, transparent 100%);
}

footer::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, rgba(59, 130, 246, 0.3) 50%, transparent 100%);
}

.footer-content {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    position: relative;
    z-index: 1;
}

.footer-decoration {
    display: flex;
    align-items: center;
    gap: 8px;
}

.decoration-line {
    width: 30px;
    height: 1px;
    background: linear-gradient(90deg, transparent 0%, #3b82f6 50%, transparent 100%);
    opacity: 0.6;
}

.decoration-dot {
    width: 6px;
    height: 6px;
    background: #3b82f6;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(59, 130, 246, 0.5);
}

.footer-text {
    text-align: center;
}

.footer-text p {
    color: #94a3b8;
    font-size: 14px;
    font-weight: 500;
    margin: 0 0 5px 0;
    transition: color 0.3s ease;
}

.footer-text a {
    color: #3b82f6;
    text-decoration: none;
    font-weight: 600;
    transition: all 0.3s ease;
    position: relative;
}

.footer-text a:hover {
    color: #2563eb;
    text-shadow: 0 0 8px rgba(59, 130, 246, 0.5);
}

.footer-subtitle {
    color: #64748b !important;
    font-size: 12px !important;
    font-weight: 400 !important;
    margin: 0 !important;
    font-style: italic;
}

/* Responsive Design */
@media (max-width: 1024px) {
    .controls {
        grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
        gap: 16px;
        padding: 0 20px;
    }
}

@media (max-width: 768px) {
    header {
        padding: 20px 0;
    }

    .controls {
        grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
        gap: 14px;
        padding: 0 16px;
    }

    .control-group label {
        font-size: 11px;
    }

    .controls input[type="number"],
    .controls select {
        padding: 10px 12px;
        font-size: 13px;
    }

    .controls button {
        padding: 10px 20px;
        font-size: 13px;
    }

    #timeDisplay {
        font-size: 14px;
        padding: 10px 16px;
    }

    main {
        padding: 20px 16px;
    }

    .box {
        width: 50px;
        height: 50px;
        font-size: 14px;
    }

    .bar {
        width: 20px;
    }

    .sized-box {
        font-size: 12px;
    }
}

@media (max-width: 480px) {
    header {
        padding: 16px 0;
    }

    .controls {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 0 12px;
    }

    .control-group label {
        font-size: 10px;
    }

    .controls input[type="number"],
    .controls select {
        padding: 8px 10px;
        font-size: 12px;
    }

    .controls button {
        padding: 8px 16px;
        font-size: 12px;
    }



    main {
        padding: 16px 12px;
    }

    .box {
        width: 40px;
        height: 40px;
        font-size: 12px;
    }

    .bar {
        width: 16px;
        font-size: 10px;
    }

    .sized-box {
        font-size: 10px;
    }

    footer {
        padding: 20px 0;
    }

    .footer-content {
        flex-direction: column;
        gap: 15px;
    }

    .footer-decoration {
        order: -1;
    }

    .footer-text p,
    .footer-subtitle {
        font-size: 12px !important;
    }

    .decoration-line {
        width: 20px;
    }
}