/* Reset and base styles */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --bg-color: #fafafa;
    --text-color: #2a2a2a;
    --nav-bg: #f0f0f0;
    --nav-hover: #e0e0e0;
    --link-color: #4a4a4a;
    --border-color: #d0d0d0;
    --heading-color: #1a1a1a;
    --active-link-color: #00AA00;
}

/* Auto dark theme based on system preference */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) {
        --bg-color: #252525;
        --text-color: #d0d0d0;
        --nav-bg: #303030;
        --nav-hover: #3a3a3a;
        --link-color: #b0b0b0;
        --border-color: #404040;
        --heading-color: #e0e0e0;
        --active-link-color: #22BB22;
    }
}

/* Manual dark theme override */
:root[data-theme="dark"] {
    --bg-color: #252525;
    --text-color: #d0d0d0;
    --nav-bg: #303030;
    --nav-hover: #3a3a3a;
    --link-color: #b0b0b0;
    --border-color: #404040;
    --heading-color: #e0e0e0;
    --active-link-color: #22BB22;
}

/* Manual light theme override */
:root[data-theme="light"] {
    --bg-color: #fafafa;
    --text-color: #2a2a2a;
    --nav-bg: #f0f0f0;
    --nav-hover: #e0e0e0;
    --link-color: #4a4a4a;
    --border-color: #d0d0d0;
    --heading-color: #1a1a1a;
    --active-link-color: #00AA00;
}

html,
body {
    height: 100%;
    margin: 0;
}

body {
    font-family: 'Courier New', Courier, monospace;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    display: flex;
    flex-direction: column;
}

/* Navigation */
nav {
    background-color: var(--nav-bg);
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-shrink: 0;
}

/* Scrollable content wrapper */
.content-wrapper {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

/* Main content */
main {
    max-width: 900px;
    width: 100%;
    margin: 0 auto;
    padding: 2rem;
    flex: 1;
}

/* Footer */
footer {
    text-align: center;
    padding: 2rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

/* Burger menu - hidden on desktop */
.burger-menu {
    display: none;
    flex-direction: column;
    justify-content: space-around;
    width: 2rem;
    height: 2rem;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    z-index: 101;
}

.burger-menu span {
    width: 2rem;
    height: 0.2rem;
    background: var(--text-color);
    border-radius: 10px;
    transition: all 0.3s linear;
    position: relative;
    transform-origin: 1px;
}

.burger-menu[aria-expanded="true"] span:nth-child(1) {
    transform: rotate(45deg);
}

.burger-menu[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
    transform: translateX(20px);
}

.burger-menu[aria-expanded="true"] span:nth-child(3) {
    transform: rotate(-45deg);
}

nav ul.nav-menu {
    list-style: none;
    display: flex;
    gap: 2rem;
    flex-wrap: wrap;
}

nav a {
    color: var(--link-color);
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.2s;
    padding: 0.25rem 0.5rem;
    display: block;
}

nav a:hover {
    background-color: var(--nav-hover);
}

nav a.active {
    color: var(--active-link-color);
    text-decoration: underline;
}

/* Theme toggle */
.theme-toggle {
    background-color: var(--nav-hover);
    border: 1px solid var(--border-color);
    color: var(--text-color);
    padding: 0.25rem 0.5rem;
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.9rem;
    cursor: pointer;
    transition: background-color 0.2s;
    white-space: nowrap;
}

.theme-toggle:hover {
    background-color: var(--border-color);
}

.theme-toggle:focus {
    outline: 2px solid var(--link-color);
    outline-offset: 2px;
}

h1 {
    color: var(--heading-color);
    font-size: 2rem;
    margin-bottom: 1.5rem;
    border-bottom: 2px solid var(--border-color);
    padding-bottom: 0.5rem;
}

h2 {
    color: var(--heading-color);
    font-size: 1.5rem;
    margin-top: 2rem;
    margin-bottom: 1rem;
}

h3 {
    color: var(--heading-color);
    font-size: 1.2rem;
    margin-top: 1.5rem;
    margin-bottom: 0.5rem;
}

p {
    margin-bottom: 1rem;
}

a {
    color: var(--link-color);
}

/* Lists in main content */
main ul,
main ol {
    margin-bottom: 1rem;
    margin-left: 2rem;
}

main li {
    margin-bottom: 0.5rem;
}

/* Nested lists */
main ul ul,
main ul ol,
main ol ul,
main ol ol {
    margin-top: 0.5rem;
    margin-bottom: 0.5rem;
    margin-left: 2rem;
}

/* Tables */
table {
    width: 100%;
    border-collapse: collapse;
    margin: 1.5rem 0;
    font-size: 0.95rem;
}

th {
    background-color: var(--nav-bg);
    color: var(--heading-color);
    font-weight: bold;
    text-align: left;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
}

td {
    padding: 0.75rem;
    border: 1px solid var(--border-color);
}

tr:nth-child(even) {
    background-color: var(--nav-bg);
}

tr:hover {
    background-color: var(--nav-hover);
}

/* Product cards on home page */
.product-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
    margin-top: 2rem;
}

.product-card {
    border: 1px solid var(--border-color);
    padding: 1.5rem;
    background-color: var(--nav-bg);
    transition: transform 0.2s;
}

.product-card:hover {
    transform: translateY(-2px);
}

.product-card h3 {
    margin-top: 0;
}

.product-card a {
    display: inline-block;
    margin-top: 1rem;
    padding: 0.5rem 1rem;
    background-color: var(--nav-hover);
    text-decoration: none;
    transition: background-color 0.2s;
}

.product-card a:hover {
    background-color: var(--border-color);
}

/* Specifications list */
.specs {
    background-color: var(--nav-bg);
    padding: 1.5rem;
    margin: 1.5rem 0;
    border-left: 3px solid var(--border-color);
}

.specs ul {
    list-style-position: inside;
    margin-left: 1rem;
}

.specs li {
    margin-bottom: 0.5rem;
}

/* Notice box */
.notice {
    background-color: var(--nav-bg);
    border: 2px solid var(--border-color);
    padding: 1rem;
    margin: 2rem 0;
    font-style: italic;
}

/* Responsive design */
@media (max-width: 768px) {
    /* Show burger menu */
    .burger-menu {
        display: flex;
    }

    /* Hide menu by default on mobile */
    nav ul.nav-menu {
        position: fixed;
        left: 0;
        top: 3rem;
        flex-direction: column;
        background-color: var(--nav-bg);
        width: 100%;
        gap: 0;
        transform: translateX(-100%);
        transition: transform 0.3s ease-in-out;
        border-bottom: 1px solid var(--border-color);
        padding: 1rem 0;
        max-height: calc(100vh - 3rem);
        overflow-y: auto;
    }

    /* Show menu when burger is expanded */
    .burger-menu[aria-expanded="true"] ~ ul.nav-menu {
        transform: translateX(0);
    }

    nav ul.nav-menu li {
        width: 100%;
    }

    nav ul.nav-menu a {
        display: block;
        padding: 0.75rem 1rem;
        width: 100%;
    }

    .theme-toggle {
        margin-left: auto;
    }

    main {
        padding: 1rem;
    }

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

/* Order CTA and Cart Button */
.order-cta {
    margin: 2rem 0;
    text-align: center;
}

.order-button {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background-color: #00AA00;
    color: var(--bg-color);
    padding: 0.75rem 1.5rem;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1rem;
    border-radius: 4px;
    transition: background-color 0.2s, transform 0.2s;
}

.order-button:hover {
    background-color: #008800;
    transform: translateY(-2px);
}

.cart-icon {
    width: 20px;
    height: 20px;
}

/* Form Container */
.form-container {
    max-width: 600px;
    margin: 2rem auto;
    padding: 2rem;
    background-color: var(--nav-bg);
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

/* Form Groups */
.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-weight: bold;
    color: var(--heading-color);
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.75rem;
    background-color: var(--bg-color);
    color: var(--text-color);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--active-link-color);
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

/* Error States */
.form-group.error input,
.form-group.error select,
.form-group.error textarea {
    border-color: #CC0000;
}

.error-message {
    display: none;
    color: #CC0000;
    font-size: 0.9rem;
    margin-top: 0.25rem;
}

.form-group.error .error-message {
    display: block;
}

.required {
    color: #CC0000;
}

/* Submit Button */
.submit-button {
    width: 100%;
    padding: 1rem;
    background-color: #00AA00;
    color: var(--bg-color);
    border: none;
    border-radius: 4px;
    font-family: 'Courier New', Courier, monospace;
    font-size: 1.1rem;
    font-weight: bold;
    cursor: pointer;
    transition: background-color 0.2s, transform 0.2s;
}

.submit-button:hover:not(:disabled) {
    background-color: #008800;
    transform: translateY(-2px);
}

.submit-button:disabled {
    background-color: var(--border-color);
    cursor: not-allowed;
    opacity: 0.6;
}

/* Pricing Info */
.pricing-info {
    background-color: var(--nav-bg);
    border: 2px solid var(--active-link-color);
    padding: 1.5rem;
    margin: 2rem 0;
    border-radius: 4px;
}

.pricing-info h2 {
    margin-top: 0;
}

.pricing-info ul {
    margin-left: 1.5rem;
}

.pricing-info li {
    margin-bottom: 0.75rem;
}

/* Form Status Messages */
.form-status {
    margin-top: 1.5rem;
    padding: 1rem;
    border-radius: 4px;
    display: none;
    text-align: center;
}

.form-status.success {
    display: block;
    background-color: #00AA00;
    color: var(--bg-color);
    border: 2px solid #008800;
}

.form-status.error {
    display: block;
    background-color: #CC0000;
    color: var(--bg-color);
    border: 2px solid #AA0000;
}

/* Turnstile Widget Container */
.turnstile-container {
    display: flex;
    justify-content: center;
    margin: 1.5rem 0;
}

/* Dark theme adjustments for order button */
@media (prefers-color-scheme: dark) {
    :root:not([data-theme="light"]) .order-button {
        color: #fafafa;
    }
}

:root[data-theme="dark"] .order-button {
    color: #fafafa;
}

/* Mobile Form Adjustments */
@media (max-width: 768px) {
    .form-container {
        padding: 1rem;
        margin: 1rem auto;
    }

    .order-button {
        width: 100%;
        justify-content: center;
    }
}