/* Crank-Slider Mechanism Simulator - Styles */

/* Breadcrumbs */
.breadcrumbs {
    margin-bottom: 0.75rem;
    padding-bottom: 0.625rem;
    border-bottom: 1px solid var(--sl-color-hairline);
    font-size: 0.9rem;
    letter-spacing: 0.01em;
}

.breadcrumbs ol {
    display: flex;
    flex-wrap: wrap;
    column-gap: 0.5rem;
    row-gap: 0;
    list-style: none;
    padding: 0;
    margin: 0;
    align-items: center;
}

.breadcrumbs li {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.breadcrumbs a {
    color: #2874a6;
    text-decoration: none;
    transition: color 0.2s ease;
}

[data-theme="dark"] .breadcrumbs a {
    color: #5dade2;
}

.breadcrumbs a:hover {
    text-decoration: underline;
}

.breadcrumbs span[aria-current="page"] {
    color: #4a6d7c;
    font-weight: 500;
}

[data-theme="dark"] .breadcrumbs span[aria-current="page"] {
    color: #7ba3b8;
}

.bc-sep {
    user-select: none;
    font-size: 1.8em;
    font-weight: 700;
    color: #0a7c70;
    position: relative;
    top: -0.1em;
}

.bc-share {
    display: flex;
    align-items: center;
    margin-left: 0.5rem;
}

.bc-share-btn {
    background: none;
    border: 1px solid #d1d5db;
    color: #2874a6;
    cursor: pointer;
    padding: 0.25rem 0.35rem;
    border-radius: 0.25rem;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s ease;
}

[data-theme="dark"] .bc-share-btn {
    border-color: #084d45;
    color: #5dade2;
}

.bc-share-btn:hover {
    border-color: var(--sw-teal);
    background-color: rgba(42, 157, 143, 0.05);
}

[data-theme="dark"] .bc-share-btn:hover {
    background-color: var(--sl-color-gray-6);
}

.bc-share-btn svg {
    width: 14px;
    height: 14px;
}

:root {
    --sw-teal: #2A9D8F;
    --sw-yellow: #E9C46A;
    --sw-slate: #598392;
    --sw-gray: #A8A29E;
    --sw-lime: #84cc16;

    --sl-color-white: #ffffff;
    --sl-color-black: #1a1a1a;
    --sl-color-text: #1F2937;
    --sl-color-text-invert: #ffffff;
    --sl-color-bg: #ffffff;
    --sl-color-bg-nav: #f8fafc;
    --sl-color-bg-sidebar: #f1f5f9;
    --sl-color-hairline: #e2e8f0;
    --sl-color-hairline-light: #f1f5f9;
    --sl-color-accent: #2A9D8F;
    --sl-color-gray-1: #f9fafb;
    --sl-color-gray-2: #64748b;
    --sl-color-gray-3: #94a3b8;
    --sl-color-gray-5: #d1d5db;

    --sl-font: 'IBM Plex Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

[data-theme='dark'] {
    --sl-color-white: #F8FAFC;
    --sl-color-black: #0f172a;
    --sl-color-text: #F8FAFC;
    --sl-color-text-invert: #1F2937;
    --sl-color-bg: #0f172a;
    --sl-color-bg-nav: #1e293b;
    --sl-color-bg-sidebar: #1e293b;
    --sl-color-hairline: #334155;
    --sl-color-hairline-light: #475569;
    --sl-color-gray-1: #1e293b;
    --sl-color-gray-2: #94a3b8;
    --sl-color-gray-3: #cbd5e1;
    --sl-color-gray-5: #64748b;
    --sw-lime: #a3e635;
}

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

html, body {
    overflow-x: hidden;
    width: 100%;
    max-width: 100vw;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--sl-font);
    background-color: var(--sl-color-bg);
    color: var(--sl-color-text);
    line-height: 1.6;
}

/* Navigation Header */
.sl-nav-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    background-color: var(--sl-color-bg-nav);
    border-bottom: 1px solid var(--sl-color-hairline);
    height: 4rem;
    display: flex;
    align-items: center;
    padding: 0 1.5rem;
    justify-content: space-between;
}

.sl-nav-header .sl-site-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    text-decoration: none;
    color: var(--sw-teal);
    font-weight: 600;
    font-size: 1.25rem;
}

.sl-nav-header .sl-site-title:hover {
    color: var(--sw-slate);
}

.sl-nav-header img {
    width: 28px;
    height: 28px;
    border-radius: 4px;
}

.sl-nav-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

/* Desktop Navigation Menu */
.desktop-nav-menu {
    display: none;
    align-items: center;
    gap: 2rem;
    margin-right: 1rem;
}

.desktop-nav-link {
    text-decoration: none;
    color: var(--sl-color-text);
    font-weight: 500;
    font-size: 0.875rem;
    padding: 0.5rem 1rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
}

.desktop-nav-link:hover {
    background-color: var(--sl-color-gray-1);
    color: var(--sw-teal);
}

@media (min-width: 1025px) {
    .desktop-nav-menu {
        display: flex;
    }
}

/* Theme Toggle */
.sl-theme-select {
    background: none;
    border: none;
    color: var(--sl-color-gray-2);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    justify-content: center;
}

.sl-theme-select:hover {
    background-color: var(--sl-color-gray-1);
    color: var(--sl-color-text);
}

.sl-theme-select svg {
    width: 1rem;
    height: 1rem;
}

/* Desktop Social Icons */
.desktop-social-links {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.desktop-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2rem;
    height: 2rem;
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.375rem;
    color: var(--sl-color-gray-2);
    text-decoration: none;
    transition: all 0.2s ease;
}

.desktop-social-link:hover {
    background-color: var(--sw-teal);
    border-color: var(--sw-teal);
    color: white;
}

.desktop-social-link svg {
    width: 1rem;
    height: 1rem;
}

/* Mobile Menu Toggle */
.mobile-starlight-menu-btn {
    display: none;
    background: none;
    border: none;
    color: var(--sl-color-text);
    cursor: pointer;
    padding: 0.625rem;
    border-radius: 50%;
    transition: all 0.2s ease;
    width: 2.5rem;
    height: 2.5rem;
    position: relative;
    top: -2px;
}

.mobile-starlight-menu-btn:hover {
    color: var(--sl-color-text);
    transform: translateY(-1px);
}

[data-theme='light'] .mobile-starlight-menu-btn {
    background-color: #ffffff;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1), 0 4px 16px rgba(0, 0, 0, 0.05);
}

[data-theme='light'] .mobile-starlight-menu-btn:hover {
    background-color: #f8f9fa;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.15), 0 8px 32px rgba(0, 0, 0, 0.1);
}

[data-theme='dark'] .mobile-starlight-menu-btn {
    background-color: #374151;
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.4), 0 4px 16px rgba(0, 0, 0, 0.2);
}

[data-theme='dark'] .mobile-starlight-menu-btn:hover {
    background-color: #4b5563;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.5), 0 8px 32px rgba(0, 0, 0, 0.3);
}

.mobile-starlight-menu-btn svg {
    width: 1.25rem;
    height: 1.25rem;
}

@media (max-width: 1024px) {
    .mobile-starlight-menu-btn {
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .desktop-social-links {
        display: none;
    }

    .sl-nav-controls {
        gap: 0.25rem;
    }
}

/* Mobile Menu Overlay */
.mobile-menu-overlay {
    display: none;
    position: fixed;
    top: 4rem;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: var(--sl-color-bg);
    border-top: 1px solid var(--sl-color-hairline);
    z-index: 999;
    padding: 2rem 1.5rem;
    overflow-y: auto;
}

.mobile-menu-overlay.active {
    display: block;
}

.mobile-nav-links {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.mobile-nav-link {
    padding: 0.75rem;
    text-decoration: none;
    color: var(--sl-color-text);
    border-radius: 0.5rem;
    transition: background-color 0.2s ease;
    text-align: center;
    font-weight: 400;
}

.mobile-nav-link:hover {
    background-color: var(--sl-color-gray-1);
}

.mobile-social-links {
    display: flex;
    justify-content: center;
    gap: 1rem;
    padding: 1rem 0;
    border-top: 1px solid var(--sl-color-hairline-light);
}

.mobile-social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 2.5rem;
    height: 2.5rem;
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.5rem;
    color: var(--sl-color-gray-2);
    text-decoration: none;
    transition: all 0.2s ease;
}

.mobile-social-link:hover {
    background-color: var(--sw-teal);
    color: white;
}

.mobile-theme-toggle {
    display: flex;
    justify-content: center;
}

.mobile-theme-toggle .sl-theme-select {
    width: 3rem;
    height: 3rem;
    background-color: var(--sl-color-gray-1);
    border: 1px solid var(--sl-color-hairline);
}

/* Main Content */
.sl-main {
    min-height: calc(100vh - 4rem);
    background-color: var(--sl-color-bg);
    padding-top: 4rem;
}

.main-frame {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem 1rem;
}

.page-header {
    text-align: center;
    margin-bottom: 2rem;
}

.page-header h1 {
    font-size: 2.5rem;
    color: #1a3a35;
    margin-bottom: 1rem;
}

[data-theme="dark"] .page-header h1 {
    color: #e2e8f0;
}

.subtitle {
    font-size: 1.125rem;
    color: var(--sl-color-gray-2);
    max-width: 800px;
    margin: 0 auto;
}

.related-links {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: center;
    gap: 0.25rem 0.5rem;
    margin-top: 0.75rem;
    font-size: 0.8rem;
}

.related-links a {
    color: var(--sw-teal);
    text-decoration: underline;
    text-decoration-color: rgba(42, 157, 143, 0.3);
    text-underline-offset: 2px;
    transition: text-decoration-color 0.15s ease;
}

.related-links a:hover {
    text-decoration-color: var(--sw-teal);
}

.link-dot {
    color: var(--sl-color-gray-5);
    font-size: 0.5rem;
}

.link-dot::before {
    content: "\00B7";
}

/* Simulator Layout */
.simulator-container {
    display: grid;
    grid-template-columns: 1fr 350px;
    gap: 2rem;
    margin-bottom: 2rem;
}

@media (max-width: 1024px) {
    .simulator-container {
        grid-template-columns: 1fr;
    }
}

/* Animation Canvas */
.animation-section {
    background: var(--sl-color-bg-sidebar);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.canvas-container {
    background: var(--sl-color-bg);
    border: 2px solid var(--sl-color-hairline);
    border-radius: 0.5rem;
    padding: 0.5rem;
    margin-bottom: 1rem;
    position: relative;
    width: 100%;
    overflow: hidden;
}

#mechanismCanvas {
    display: block;
    width: 100%;
    height: auto;
}

@media (max-width: 768px) {
    .canvas-container {
        padding: 0.25rem;
    }
}

.animation-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    justify-content: center;
}

.control-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.25rem;
    background: linear-gradient(135deg, var(--sw-teal), var(--sw-slate));
    color: white;
    border: none;
    border-radius: 0.375rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 0.8rem;
    letter-spacing: 0.02em;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.control-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(42, 157, 143, 0.3);
    filter: brightness(1.08);
}

.control-btn:active {
    transform: translateY(0);
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.control-btn .btn-icon {
    font-size: 0.75rem;
    line-height: 1;
}

.control-btn.secondary {
    background: linear-gradient(135deg, var(--sw-slate), #3d6270);
}

.control-btn.secondary:hover {
    box-shadow: 0 4px 14px rgba(89, 131, 146, 0.3);
}

.control-btn.stop {
    background: linear-gradient(135deg, #ef4444, #b91c1c);
}

.control-btn.stop:hover {
    box-shadow: 0 4px 14px rgba(239, 68, 68, 0.35);
}

.control-btn.experiment {
    background: linear-gradient(135deg, var(--sw-lime), #65a30d);
    color: var(--sl-color-black);
}

.control-btn.experiment:hover {
    box-shadow: 0 4px 14px rgba(132, 204, 22, 0.35);
}

/* Parameters Panel */
.parameters-panel {
    background: var(--sl-color-bg-sidebar);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.panel-section {
    margin-bottom: 1.5rem;
}

.panel-section:last-child {
    margin-bottom: 0;
}

.panel-section h3 {
    font-size: 1.125rem;
    color: var(--sw-teal);
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--sl-color-hairline);
}

.param-group {
    margin-bottom: 1rem;
}

.param-group label {
    display: block;
    font-weight: 500;
    margin-bottom: 0.5rem;
    color: var(--sl-color-text);
    font-size: 0.875rem;
}

.param-input-group {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.param-group input[type="number"],
.param-group input[type="range"] {
    width: 100%;
    padding: 0.5rem;
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.375rem;
    background: var(--sl-color-bg);
    color: var(--sl-color-text);
    font-size: 0.875rem;
}

.param-value {
    min-width: 80px;
    text-align: right;
    font-weight: 600;
    color: var(--sw-teal);
    font-size: 0.875rem;
}

/* Preset Select */
.preset-select {
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.375rem;
    background: var(--sl-color-bg);
    color: var(--sl-color-text);
    font-size: 0.875rem;
    font-weight: 500;
    cursor: pointer;
    transition: border-color 0.2s ease;
}

.preset-select:hover {
    border-color: var(--sw-teal);
}

.preset-select:focus {
    outline: none;
    border-color: var(--sw-teal);
    box-shadow: 0 0 0 2px rgba(42, 157, 143, 0.2);
}

/* Rod/Crank Warning */
.rod-crank-warning {
    display: none;
    background: rgba(239, 68, 68, 0.1);
    border: 1px solid #ef4444;
    border-radius: 0.5rem;
    padding: 0.75rem 1rem;
    color: #ef4444;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
}

/* Experiment Toolbar */
.experiment-toolbar {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-wrap: wrap;
    justify-content: center;
    margin-bottom: 1.5rem;
    padding: 0.75rem 1rem;
    background: var(--sl-color-bg);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.5rem;
}

/* X-Axis Segmented Picker */
.xaxis-picker {
    display: flex;
    align-items: center;
    gap: 0;
}

.xaxis-label {
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--sl-color-gray-2);
    margin-right: 0.5rem;
    white-space: nowrap;
}

.xaxis-btn {
    padding: 0.375rem 0.75rem;
    border: 1px solid var(--sl-color-hairline);
    background: var(--sl-color-bg);
    color: var(--sl-color-gray-2);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.15s ease;
    white-space: nowrap;
}

.xaxis-btn:first-of-type {
    border-radius: 0.375rem 0 0 0.375rem;
}

.xaxis-btn:last-of-type {
    border-radius: 0 0.375rem 0.375rem 0;
    border-left: none;
}

.xaxis-btn.active {
    background: linear-gradient(135deg, var(--sw-teal), var(--sw-slate));
    border-color: var(--sw-teal);
    color: white;
    box-shadow: 0 1px 3px rgba(42, 157, 143, 0.2);
}

.xaxis-btn:not(.active):hover {
    background: rgba(42, 157, 143, 0.06);
    color: var(--sw-teal);
    border-color: var(--sw-teal);
}

[data-theme="dark"] .xaxis-btn:not(.active):hover {
    background: rgba(42, 157, 143, 0.12);
}

.experiment-toolbar label {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    color: var(--sl-color-text);
}

.toolbar-divider {
    width: 1px;
    height: 1.5rem;
    background: var(--sl-color-hairline);
}

.comparison-controls {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.comparison-label {
    font-size: 0.8125rem;
    color: var(--sl-color-gray-2);
    font-weight: 500;
}

.experiment-toolbar button {
    padding: 0.4rem 0.875rem;
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.375rem;
    background: var(--sl-color-bg);
    color: var(--sl-color-text);
    font-size: 0.8125rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.experiment-toolbar button:hover {
    border-color: var(--sw-teal);
    color: var(--sw-teal);
    background: rgba(42, 157, 143, 0.06);
}

[data-theme="dark"] .experiment-toolbar button:hover {
    background: rgba(42, 157, 143, 0.12);
}

.experiment-toolbar button.active-experiment {
    border-color: #a855f7;
    color: #a855f7;
    background: rgba(168, 85, 247, 0.06);
}

[data-theme="dark"] .experiment-toolbar button.active-experiment {
    background: rgba(168, 85, 247, 0.15);
}

.experiment-status {
    width: 100%;
    text-align: center;
    font-size: 0.75rem;
    color: #a855f7;
    font-weight: 500;
    padding-top: 0.25rem;
}

@media (max-width: 640px) {
    .toolbar-divider {
        display: none;
    }

    .comparison-controls {
        width: 100%;
        padding-top: 0.5rem;
        border-top: 1px solid var(--sl-color-hairline);
    }
}

/* Tab Group Heading */
.tab-group-heading {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--sl-color-gray-2);
    margin-bottom: 0.5rem;
    margin-top: 1.5rem;
}

.tab-group-heading:first-of-type {
    margin-top: 0;
}

/* Experiments Section */
.experiments-section {
    background: var(--sl-color-bg-sidebar);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.75rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.experiments-section h2 {
    color: var(--sw-teal);
    margin-bottom: 1.5rem;
    text-align: center;
}

.experiment-tabs {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    justify-content: center;
}

.experiment-tab,
.experiment-tab-g1,
.experiment-tab-g2 {
    padding: 0.625rem 1.25rem;
    background: var(--sl-color-bg);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.375rem;
    cursor: pointer;
    transition: all 0.2s ease;
    font-weight: 500;
    font-size: 0.8rem;
    letter-spacing: 0.01em;
}

.experiment-tab:hover,
.experiment-tab-g1:hover,
.experiment-tab-g2:hover {
    background: rgba(42, 157, 143, 0.06);
    border-color: var(--sw-teal);
    color: var(--sw-teal);
}

[data-theme="dark"] .experiment-tab:hover,
[data-theme="dark"] .experiment-tab-g1:hover,
[data-theme="dark"] .experiment-tab-g2:hover {
    background: rgba(42, 157, 143, 0.12);
}

.experiment-tab.active,
.experiment-tab-g1.active,
.experiment-tab-g2.active {
    background: linear-gradient(135deg, var(--sw-teal), var(--sw-slate));
    color: white;
    border-color: var(--sw-teal);
    box-shadow: 0 1px 4px rgba(42, 157, 143, 0.25);
}

.experiment-content,
.experiment-content-g1,
.experiment-content-g2 {
    display: none;
}

.experiment-content.active,
.experiment-content-g1.active,
.experiment-content-g2.active {
    display: block;
}

.chart-container {
    background: var(--sl-color-bg);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 1rem;
    position: relative;
    height: 500px;
}

/* Export Chart Button */
.export-chart-btn {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    width: 2rem;
    height: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--sl-color-bg);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.375rem;
    cursor: pointer;
    color: var(--sl-color-gray-2);
    font-size: 0.875rem;
    transition: all 0.2s ease;
    z-index: 5;
}

.export-chart-btn:hover {
    border-color: var(--sw-teal);
    color: var(--sw-teal);
    background: var(--sl-color-gray-1);
}

/* Export dropdown on mechanism canvas */
.export-dropdown {
    position: absolute;
    top: 0.5rem;
    right: 0.5rem;
    z-index: 10;
}

.export-dropdown-menu {
    display: none;
    position: absolute;
    top: 100%;
    right: 0;
    margin-top: 0.25rem;
    background: var(--sl-color-bg);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.375rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.12);
    overflow: hidden;
    min-width: 140px;
}

.export-dropdown-menu.open {
    display: block;
}

.export-dropdown-menu button {
    display: block;
    width: 100%;
    padding: 0.5rem 0.75rem;
    border: none;
    background: none;
    color: var(--sl-color-text);
    font-size: 0.8rem;
    text-align: left;
    cursor: pointer;
    transition: background 0.15s ease;
}

.export-dropdown-menu button:hover {
    background: rgba(42, 157, 143, 0.08);
    color: var(--sw-teal);
}

[data-theme="dark"] .export-dropdown-menu button:hover {
    background: rgba(42, 157, 143, 0.15);
}

.export-dropdown-menu button + button {
    border-top: 1px solid var(--sl-color-hairline);
}

.results-summary {
    background: var(--sl-color-bg);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-top: 1rem;
}

.results-summary h4 {
    color: var(--sw-teal);
    margin-bottom: 0.75rem;
}

.results-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
}

.result-item {
    padding: 0.75rem;
    background: var(--sl-color-gray-1);
    border-radius: 0.375rem;
}

.result-label {
    font-size: 0.875rem;
    color: var(--sl-color-gray-2);
    margin-bottom: 0.25rem;
}

.result-value {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--sw-teal);
}

/* Download Resources */
.downloads-section {
    background: var(--sl-color-bg-sidebar);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.downloads-section h2 {
    color: var(--sw-teal);
    margin-bottom: 1.5rem;
    text-align: center;
}

.downloads-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1rem;
}

.download-card {
    background: var(--sl-color-bg);
    border: 1px solid var(--sl-color-hairline);
    border-radius: 0.5rem;
    padding: 1.5rem;
    text-align: center;
    transition: all 0.2s ease;
}

.download-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.1);
    border-color: var(--sw-lime);
}

.download-icon {
    font-size: 2.5rem;
    margin-bottom: 0.75rem;
}

.download-title {
    font-weight: 600;
    color: var(--sw-teal);
    margin-bottom: 0.5rem;
}

.download-desc {
    font-size: 0.875rem;
    color: var(--sl-color-gray-2);
    margin-bottom: 1rem;
}

.download-price {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    margin: 1rem 0;
}

.original-price-strike {
    text-decoration: line-through;
    color: var(--sl-color-gray-2);
    font-size: 1rem;
}

.discounted-price-display {
    font-size: 1.5rem;
    font-weight: bold;
    color: var(--sw-teal);
}

.savings-badge {
    background: var(--sw-lime);
    color: var(--sl-color-black);
    padding: 0.25rem 0.75rem;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: bold;
}

.download-btn {
    display: inline-block;
    padding: 0.625rem 1.25rem;
    background: linear-gradient(135deg, var(--sw-lime), #65a30d);
    color: var(--sl-color-black);
    text-decoration: none;
    border-radius: 0.375rem;
    font-weight: 600;
    transition: all 0.2s ease;
    cursor: pointer;
    border: none;
    font-size: 0.8rem;
    letter-spacing: 0.02em;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}

.download-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(132, 204, 22, 0.3);
    filter: brightness(1.06);
}

/* Simulator Navigation (Prev/Next) */
.simulator-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin: 2rem 0;
    padding: 0 0.5rem;
}

.simulator-nav-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    padding: 0.6rem 1.25rem;
    border-radius: 0.375rem;
    font-weight: 600;
    font-size: 0.85rem;
    letter-spacing: 0.02em;
    text-decoration: none;
    transition: all 0.2s ease;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.12);
}

.simulator-nav-btn.next {
    background: linear-gradient(135deg, var(--sw-teal), var(--sw-slate));
    color: white;
}

.simulator-nav-btn.prev {
    background: linear-gradient(135deg, var(--sw-slate), var(--sw-teal));
    color: white;
}

.simulator-nav-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 14px rgba(42, 157, 143, 0.3);
    filter: brightness(1.08);
}

@media (max-width: 768px) {
    .simulator-nav {
        flex-direction: column;
        gap: 0.75rem;
    }
    .simulator-nav-btn {
        width: 100%;
        justify-content: center;
    }
}

@media (max-width: 768px) {
    .page-header h1 {
        font-size: 2rem;
    }

    .downloads-grid {
        grid-template-columns: 1fr;
    }

    .experiment-tabs {
        flex-direction: column;
    }

    .chart-container {
        height: 300px;
    }
}