:root {
    --primary-color: #000000;
    --secondary-color: #1a1a1a;
    --accent-color: #4263eb;
    --success-color: #12b76a;
    --bg-color: #ffffff;
    --card-bg: #fafafa;
    --text-dark: #000000;
    --text-medium: #525252;
    --text-light: #737373;
    --border-color: #e5e5e5;
    --shadow-subtle: 0 1px 2px rgba(0, 0, 0, 0.04);
    --shadow-sm: 0 1px 3px rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.05);
    --border-radius: 8px;
    --transition: all 0.15s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-color);
    min-height: 100vh;
    color: var(--text-dark);
    line-height: 1.5;
    padding: 0;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 40px 24px;
}

/* Header */
.main-header {
    background: transparent;
    border-radius: 0;
    padding: 40px 0 32px 0;
    /* margin-bottom: 48px; */
    box-shadow: none;
    border: none;
    /* border-bottom: 1px solid var(--border-color); */
}

.header-content {
    display: flex;
    align-items: center;
    gap: 20px;
}

.logo {
    flex-shrink: 0;
    animation: float 3s ease-in-out infinite;
}

@keyframes float {
    0%, 100% {
        transform: translateY(0px);
    }
    50% {
        transform: translateY(-10px);
    }
}

.header-text h1 {
    margin: 0;
    font-size: 28px;
    font-weight: 600;
    color: var(--text-dark);
    letter-spacing: -0.02em;
}

.header-text p {
    margin: 6px 0 0 0;
    font-size: 15px;
    color: var(--text-medium);
    font-weight: 400;
}

/* Controls Section */
.controls-section {
    background: transparent;
    border-radius: 0;
    padding: 0;
    margin-bottom: 16px;
    box-shadow: none;
    border: none;
    margin-top: 16px;
}

.control-group {
    margin-bottom: 32px;
}

.control-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 12px;
    color: var(--text-dark);
    position: relative;
    font-size: 14px;
    letter-spacing: -0.01em;
}

/* Info icon and tooltips */
.info-icon {
    display: inline-block;
    margin-left: 8px;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    background: #3498db;
    color: white;
    text-align: center;
    font-size: 12px;
    line-height: 18px;
    cursor: help;
    font-weight: bold;
    transition: background 0.3s ease;
}

.info-icon:hover {
    background: #2980b9;
}

.tooltip {
    display: none;
    position: absolute;
    left: 0;
    top: 30px;
    background: #34495e;
    color: white;
    padding: 15px;
    border-radius: 6px;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    z-index: 1000;
    width: 400px;
    max-width: 90vw;
    font-size: 14px;
    line-height: 1.6;
}

.tooltip.active {
    display: block;
}

.tooltip strong {
    color: #3498db;
    display: block;
    margin-bottom: 8px;
}

.tooltip ul {
    margin: 8px 0 0 0;
    padding-left: 20px;
}

.tooltip li {
    margin-bottom: 5px;
}

.tooltip li strong {
    display: inline;
    color: #ecf0f1;
}

.slider-container {
    display: flex;
    align-items: center;
    position: relative;
}

.slider-wrapper {
    width: 100%;
    position: relative;
}

.slider {
    width: 100%;
    height: 2px;
    border-radius: 1px;
    background: var(--border-color);
    outline: none;
    -webkit-appearance: none;
    appearance: none;
    position: relative;
    margin-bottom: 32px;
    margin-top: 8px;
    cursor: pointer;
    transition: var(--transition);
}

.slider:hover {
    background: #d4d4d4;
}

.slider-ticks {
    display: flex;
    justify-content: space-between;
    position: absolute;
    top: 24px;
    left: 0;
    right: 0;
    pointer-events: none;
}

.tick-label {
    font-size: 12px;
    color: var(--text-light);
    font-weight: 400;
    text-align: center;
    min-width: 80px;
    padding: 0;
    background: transparent;
    border-radius: 0;
    border: none;
    transition: var(--transition);
    text-transform: none;
    letter-spacing: -0.01em;
}

/* Add tick marks above the slider */
.slider::before {
    content: '';
    position: absolute;
    top: -8px;
    left: 0;
    right: 0;
    height: 4px;
    background: repeating-linear-gradient(
        to right,
        transparent 0,
        transparent calc(33.33% - 6px),
        #999 0,
        #999 3px,
        transparent 3px,
        transparent 33.33%
    );
    pointer-events: none;
}

.slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--text-dark);
    cursor: pointer;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    border: none;
    transition: var(--transition);
}

.slider::-webkit-slider-thumb:hover {
    transform: scale(1.1);
}

.slider::-webkit-slider-thumb:active {
    transform: scale(1);
}

.slider::-moz-range-thumb {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--text-dark);
    cursor: pointer;
    border: none;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
    transition: var(--transition);
}

.slider::-moz-range-thumb:hover {
    transform: scale(1.1);
}

.slider::-moz-range-thumb:active {
    transform: scale(1);
}


.show-examples-btn {
    background: var(--text-dark);
    color: white;
    border: none;
    padding: 10px 24px;
    border-radius: var(--border-radius);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    margin-top: 8px;
    box-shadow: none;
    text-transform: none;
    letter-spacing: -0.01em;
}

.show-examples-btn:hover {
    background: var(--secondary-color);
}

.show-examples-btn:active {
    transform: scale(0.98);
}

.show-examples-btn.loading {
    position: relative;
    color: transparent;
}

.show-examples-btn.loading::after {
    content: '';
    position: absolute;
    width: 16px;
    height: 16px;
    top: 50%;
    left: 50%;
    margin-left: -8px;
    margin-top: -8px;
    border: 2px solid #ffffff;
    border-radius: 50%;
    border-top-color: transparent;
    animation: spinner 0.6s linear infinite;
}

@keyframes spinner {
    to {
        transform: rotate(360deg);
    }
}

/* Loading skeleton for code blocks */
.code-container.loading {
    position: relative;
    min-height: 200px;
}

.code-container.loading::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 100%;
    background: linear-gradient(
        90deg,
        #f0f0f0 25%,
        #e0e0e0 50%,
        #f0f0f0 75%
    );
    background-size: 200% 100%;
    animation: loading 1.5s ease-in-out infinite;
}

@keyframes loading {
    0% {
        background-position: 200% 0;
    }
    100% {
        background-position: -200% 0;
    }
}

/* Examples Section */
.examples-section {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    margin-bottom: 48px;
    box-shadow: var(--shadow-subtle);
    overflow: hidden;
    border: 1px solid var(--border-color);
}

.tabs {
    display: flex;
    background: transparent;
    border-bottom: 1px solid var(--border-color);
    flex-wrap: wrap;
    gap: 0;
    padding: 0 20px;
}

.tab-button {
    flex: 0 0 auto;
    min-width: auto;
    padding: 12px 16px;
    background: transparent;
    border: none;
    border-bottom: 2px solid transparent;
    border-radius: 0;
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    color: var(--text-medium);
    margin-bottom: -1px;
}

.tab-button.active {
    background: transparent;
    color: var(--text-dark);
    border-bottom-color: var(--text-dark);
}

.tab-button:hover:not(.active) {
    color: var(--text-dark);
}

.tab-content {
    display: none;
    padding: 32px 20px;
}

.tab-content.active {
    display: block;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}


.code-comparison {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

.code-block h4 {
    margin-bottom: 10px;
    color: var(--text-medium);
    font-size: 13px;
    font-weight: 500;
    text-transform: none;
    letter-spacing: -0.01em;
}

.code-container {
    background: #0d1117;
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 20px;
    overflow-x: auto;
    box-shadow: none;
    position: relative;
    width: 500px; /* set it to anything */
}

.code-container::before {
    content: '';
    position: absolute;
    top: 12px;
    left: 12px;
    display: flex;
    gap: 8px;
}

.code-container pre {
    margin: 0;
    font-family: 'Fira Code', 'Monaco', 'Menlo', 'Ubuntu Mono', monospace;
    font-size: 14px;
    line-height: 1.6;
    color: #d4d4d4;
}

.code-container code {
    display: block;
    white-space: pre;
    color: #d4d4d4;
}

/* Syntax Highlighting */
.highlight-blue {
    background-color: rgba(86, 156, 214, 0.3);
    color: #9CDCFE;
    padding: 3px 6px;
    border-radius: 4px;
    font-weight: 600;
    border: 1px solid rgba(86, 156, 214, 0.5);
}

.highlight-orange {
    background-color: rgba(206, 145, 120, 0.3);
    color: #CE9178;
    padding: 3px 6px;
    border-radius: 4px;
    font-weight: 600;
    border: 1px solid rgba(206, 145, 120, 0.5);
}

.highlight-green {
    background-color: rgba(78, 201, 176, 0.3);
    color: #4EC9B0;
    padding: 3px 6px;
    border-radius: 4px;
    font-weight: 600;
    border: 1px solid rgba(78, 201, 176, 0.5);
}

/* Description Section */
.description-section {
    background: var(--card-bg);
    /* border-radius: var(--border-radius); */
    padding: 32px 24px;
    box-shadow: var(--shadow-subtle);
    /* border: 1px solid var(--border-color); */
}

.description-item {
    margin-bottom: 20px;
    padding: 0;
    background: transparent;
    border-left: none;
    border-radius: 0;
    transition: none;
}

.description-item strong {
    color: var(--text-dark);
    font-weight: 500;
    font-size: 14px;
    display: block;
    margin-bottom: 4px;
}

.description-item span {
    color: var(--text-medium);
    font-size: 14px;
    line-height: 1.6;
}

.description-item:last-child {
    margin-bottom: 0;
}

/* Pattern Guide Section */
.pattern-guide-section {
    background: var(--card-bg);
    border-radius: var(--border-radius);
    padding: 16px 16px;
    /* margin-top: 48px; */
    box-shadow: var(--shadow-subtle);
    border: 1px solid var(--border-color);
}

.pattern-guide-grid {
    margin-top: 16px;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 25px;
}

.pattern-guide-item {
    background: transparent;
    padding: 0 24px 0 0;
    border-radius: 0;
    border: none;
    border-right: 1px solid var(--border-color);
    transition: none;
}

.pattern-guide-item:last-child {
    border-right: none;
    padding-right: 0;
}

.pattern-guide-item h4 {
    color: var(--text-dark);
    margin-bottom: 8px;
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.pattern-guide-item p {
    color: var(--text-medium);
    margin-bottom: 12px;
    font-size: 14px;
    line-height: 1.6;
}

.pattern-guide-item ul {
    list-style: none;
    padding: 0;
    margin: 0;
}

.pattern-guide-item li {
    margin-bottom: 6px;
    font-size: 14px;
    color: var(--text-medium);
    line-height: 1.6;
}

.pattern-guide-item li strong {
    color: var(--text-dark);
    font-weight: 500;
}

/* Responsive Design */
@media (max-width: 768px) {
    .container {
        padding: 10px;
    }

    .main-header {
        padding: 20px;
        border-radius: 12px;
    }

    .header-text h1 {
        font-size: 24px;
    }

    .header-text p {
        font-size: 14px;
    }

    .logo svg {
        width: 32px;
        height: 32px;
    }

    .controls-section, .examples-section, .description-section, .pattern-guide-section {
        padding: 20px;
        border-radius: 12px;
    }

    .code-comparison {
        /* grid-template-columns: 300px 300px; */
        gap: 20px;
    }

    .slider-container {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .slider-wrapper {
        width: 100%;
    }

    .tick-label {
        font-size: 9px;
        padding: 4px 6px;
        min-width: 60px;
    }

    .tabs {
        flex-direction: column;
        padding: 10px;
        gap: 6px;
    }

    .tab-button {
        text-align: center;
        min-width: 100%;
    }

    .pattern-guide-grid {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .tooltip {
        width: 90vw;
        left: 5vw;
        font-size: 12px;
    }

    .show-examples-btn {
        width: 100%;
        padding: 14px 24px;
        font-size: 14px;
    }

    .code-container {
        padding: 16px;
    }

    .code-container pre {
        font-size: 12px;
    }
}