:root {
    --white1: #f7f1e3;
    --white2: #e9e0cd;
    --brown1: #4f321c;
    --brown2: #754928;
    --green1: #7ac7a7;
    --green2: #40a57d;

    --bg: var(--white1);
    --surface: var(--white2);
    --border: var(--white2);
    --border-bright: var(--brown1);
    --text: var(--brown2);
    --text-muted: var(--brown1);
    --accent: var(--green1);
    --accent-dim: var(--green2);
}

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

body {
    background: var(--bg);
    color: var(--text);
    font-family: 'SF Mono', 'Fira Code', monospace;
    min-height: 100vh;
    min-height: 100dvh; /* mobile: ignore the collapsing address bar */
    /* Column layout so the footer can sit at the bottom of short pages */
    display: flex;
    flex-direction: column;
}

/* NAV */
nav {
    display: flex;
    align-items: stretch;
    border-bottom: 1px solid var(--border-bright);
    background: var(--surface);
    position: sticky;
    top: 0;
    z-index: 100;
    height: 52px;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0 1.2rem;
    border-right: 1px solid var(--border-bright);
    cursor: pointer;
    font-size: 0.85rem;
    font-weight: bold;
    letter-spacing: 0.1em;
    color: var(--brown1);
    text-transform: uppercase;
    flex-shrink: 0;
}

.logo-image {
    width: 35px;
    height: 100%;
    background-image: url('./img/logo_green_middle.svg');
    background-size: cover;
    background-repeat: no-repeat;
    background-position: center;
}

.nav-links {
    display: flex;
    align-items: stretch;
}

.nav-login {
    display: flex;
    align-items: stretch;
    margin-left: auto;
    border-left: 1px solid var(--border-bright);
}

nav button, nav a.nav-link-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.6rem 1.4rem;
    cursor: pointer;
    font-weight: bold;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
}

nav button.active, .nav-login button.active {
    color: var(--green2);
    border-bottom-color: var(--green2);
    border-style: solid;
    border-top: none;
    border-left: none;
    border-right: none;
    border-width: 2px;
}

.nav-login button {
    border-right: none;
    border-left: none;
}

/* DROPDOWN */
.nav-dropdown {
    position: relative;
}
#btn-explainer{
    height: 100%;
}

.nav-dropdown:hover .dropdown-menu {
    display: flex;
}

.dropdown-menu {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 100%;
    left: 0;
    background: var(--surface);
    border: 1px solid var(--border-bright);
    border-top: none;
    min-width: 100%;
    white-space: nowrap;
    z-index: 200;
}

.dropdown-menu a {
    font-family: 'Courier New', Courier, monospace;
    font-size: 0.72rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
    padding: 0.5rem 1.4rem;
    cursor: pointer;
    border-bottom: 1px solid var(--border);
    transition: background 0.15s, color 0.15s;
}

.dropdown-menu a:last-child {
    border-bottom: none;
}

.dropdown-menu a:hover {
    background: var(--accent);
    color: var(--brown1);
}

/* PAGE VISIBILITY */
.hidden {
    display: none !important;
}

/* HERO */
#home {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: calc(100vh - 41px);
    padding: 3rem 2rem;
    text-align: center;
    gap: 2rem;
}
.hero-landscape-layer{
    left: 0 !important;
    right: 0 !important;
    width: 100vw !important; /* Force it to the Viewport Width */
    margin-left: calc(-50vw + 50%); /* Centers it if the parent is narrower than the screen */
    overflow: hidden;
}
.ascii-landscape {
    width: 100%;
    display: block;
}

.ascii-art {
    font-family: 'Courier New', Courier, monospace;
    font-size: clamp(0.35rem, 1.1vw, 0.75rem);
    line-height: 1.15;
    color: var(--brown1);
    white-space: pre;
    letter-spacing: 0.05em;
}

.ascii-art span {
    color: var(--accent-dim);
}

.tagline {
    font-size: 1rem;
    color: var(--text-muted);
    letter-spacing: 0.15em;
    text-transform: uppercase;
    border-top: 1px solid var(--border-bright);
    padding: 1.0rem 2rem;
}

.version-note {
    font-size: 1rem;
    color: var(--text-muted);
    letter-spacing: 0.1em;
}

.scroll-hint {
    font-size: 2rem;
    color: var(--accent-dim);
    animation: bounce 2s infinite;
    margin-top: 1rem;
}

@keyframes bounce {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(15px); }
}

.infoboxes{
    display: flex;
    flex-direction: column;
    padding: 4rem 2rem;
    max-width: 700px;
    margin: 0 auto;
    gap: 2rem;
}
/* Section headings on every page (home, about, docs, plus, legal) */
.infoboxes h2 {
    font-size: 1.1rem;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--text-muted);
    border-bottom: 1px solid var(--border-bright);
    padding-bottom: 0.5rem;
}

.explainer-block {
    background: var(--surface);
    border: 1px solid var(--border-bright);
    padding: 1.25rem 1.5rem;
    white-space: normal;
    word-wrap: break-word;
    overflow-wrap: break-word;
}

.explainer-block h3 {
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent-dim);
    margin-bottom: 0.6rem;
}

.explainer-block p {
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-muted);
}

.download-container {
    position: relative;
    display: inline-block;
    margin-top: 20px;
}

.download-split-btn {
    display: flex;
    align-items: center;
    background: var(--brown1);
    overflow: hidden;
}

.download-btn-main {
    background: none;
    border: none;
    color: var(--white1);
    padding: 12px 24px;
    font-size: 1.1rem;
    cursor: pointer;
}

.download-dropdown-toggle {
    background: none;
    border: none;
    color: var(--white1);
    padding: 12px 10px;
    cursor: pointer;
    font-size: 1.0rem;
}

.download-btn-main:hover, .download-dropdown-toggle:hover {
    background: var(--green2);
}

.download-menu {
    position: absolute;
    top: 100%;
    left: 0;
    margin-top: 8px;
    background: var(--white2);
    min-width: 200px;
    z-index: 1000;
    text-align: left;
    border-color: var(--brown1);
    border-width: 1px;
    border-style: solid;
}

.download-menu.hidden { display: none; }

.menu-group { padding: 10px 0; }

.menu-label {
    display: block;
    padding: 0 15px;
    font-size: 1.0rem;
    text-transform: uppercase;
    color: var(--brown1);
    margin-bottom: 5px;
}

.download-menu a {
    display: block;
    padding: 8px 15px;
    color: var(--brown1);
    text-decoration: none;
    font-size: 0.9rem;
}

.download-menu a:hover {
    background: var(--green2);
    color: var(--white1);
}
.menu-divider {
    height: 1px;
    background: var(--brown1);
}
/* DOCS PAGE — tab nav */
.docs-tab-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.75rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    padding: 0.6rem 1.4rem;
    cursor: pointer;
    font-weight: bold;
    border-bottom: 2px solid transparent;
}

.docs-tab-btn.active {
    color: var(--green2);
    border-bottom-color: var(--green2);
}

.docs-lede {
    font-size: 0.9rem;
    line-height: 1.7;
    color: var(--text-muted);
}

/* DOCS PAGE — beginner's guide */
.guide-steps {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.guide-step {
    display: flex;
    gap: 1.25rem;
    background: var(--surface);
    border: 1px solid var(--border-bright);
    padding: 1.25rem 1.5rem;
}

.guide-step-num {
    font-size: 0.85rem;
    font-weight: bold;
    color: var(--accent-dim);
    letter-spacing: 0.1em;
    flex-shrink: 0;
}

.guide-step-body h3 {
    font-size: 0.85rem;
    letter-spacing: 0.15em;
    text-transform: uppercase;
    color: var(--accent-dim);
    margin-bottom: 0.5rem;
}

.guide-step-body p {
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-muted);
}

.guide-step-body a {
    color: var(--accent-dim);
    cursor: pointer;
}

/* DOCS PAGE — documentation */
.inline-code {
    font-family: 'Courier New', Courier, monospace;
    background: var(--bg);
    border: 1px solid var(--border-bright);
    padding: 0.05rem 0.4rem;
    font-size: 0.82rem;
    color: var(--brown1);
}

.copyable {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
}

.copy-btn {
    background: none;
    border: 1px solid var(--border-bright);
    color: var(--text-muted);
    font-family: inherit;
    font-size: 0.7rem;
    line-height: 1;
    padding: 0.2rem 0.45rem;
    cursor: pointer;
}

.copy-btn:hover {
    background: var(--accent-dim);
    border-color: var(--accent-dim);
    color: var(--white1);
}

.copy-btn.copied {
    border-color: var(--green2);
    color: var(--green2);
}

.doc-attr-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 0.75rem;
}

.doc-attr-list li {
    font-size: 0.85rem;
    color: var(--text-muted);
    padding-left: 1.2rem;
    position: relative;
}

.doc-attr-list li::before {
    content: '>';
    position: absolute;
    left: 0;
    color: var(--accent-dim);
}

.api-func-list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    margin-top: 0.75rem;
}

.api-func p {
    font-size: 0.85rem;
    line-height: 1.6;
    color: var(--text-muted);
    margin-top: 0.35rem;
}

/* DOCS PAGE — featured algorithms */
.algo-card {
    background: var(--surface);
    border: 1px solid var(--border-bright);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.algo-card-head {
    display: flex;
    align-items: baseline;
    justify-content: space-between;
    gap: 1rem;
    border-bottom: 1px solid var(--border-bright);
    padding-bottom: 0.6rem;
}

.algo-card-head h3 {
    font-size: 0.9rem;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--brown1);
}

.algo-tag {
    font-size: 0.68rem;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-dim);
    border: 1px solid var(--accent-dim);
    padding: 0.15rem 0.5rem;
    white-space: nowrap;
}

.algo-card > p {
    font-size: 0.88rem;
    line-height: 1.7;
    color: var(--text-muted);
}

.code-block {
    background: var(--brown1);
    color: var(--white1);
    font-family: 'Fira Code', 'Courier New', Courier, monospace;
    font-size: 0.78rem;
    line-height: 1.6;
    padding: 1.1rem 1.3rem;
    overflow-x: auto;
    white-space: pre;
}

.code-block-wrap {
    position: relative;
}

.code-copy-btn {
    position: absolute;
    top: 0.7rem;
    right: 0.7rem;
    background: var(--brown1);
    border-color: var(--white2);
    color: var(--white2);
    opacity: 0.8;
}

.code-copy-btn:hover {
    opacity: 1;
    background: var(--accent-dim);
    border-color: var(--accent-dim);
    color: var(--white1);
}

.code-copy-btn.copied {
    opacity: 1;
    border-color: var(--green1);
    color: var(--green1);
}

.code-block .tok-comment { color: var(--green1); opacity: 0.85; }
.code-block .tok-kw { color: var(--accent); font-weight: bold; }
.code-block .tok-num { color: var(--white2); }

.algo-image {
    border: 1px solid var(--border-bright);
    background: var(--bg);
    padding: 0.75rem;
    display: flex;
    justify-content: center;
}

.algo-image img {
    max-width: 100%;
    display: block;
}
/* MOBILE NAV — keep tabs on screen.
   Tighter buttons first; if they still don't fit next to the logo,
   the nav wraps to a second row instead of overflowing. The `nav`
   prefix lets these beat .docs-tab-btn / .plus-tab-btn (plus.css). */
@media (max-width: 700px) {
    nav {
        height: auto;
        min-height: 52px;
        flex-wrap: wrap;
    }

    .nav-logo {
        min-height: 51px;
        padding: 0 0.75rem;
    }

    .nav-links {
        flex: 1 1 auto;
        flex-wrap: wrap;
        justify-content: space-around;
    }

    nav button,
    nav a.nav-link-btn,
    nav .docs-tab-btn,
    nav .plus-tab-btn {
        padding: 0.6rem 0.55rem;
        font-size: 0.7rem;
        letter-spacing: 0.05em;
        min-height: 51px;
    }

    /* Dropdown should still open below its button when rows wrap */
    .nav-dropdown { display: flex; }
}

@media (max-width: 420px) {
    /* The logo mark alone is enough on very narrow phones */
    .nav-logo span { display: none; }
}

/* DOCS PAGE — spacing inside the merged widget block */
.explainer-block .widget-demo-label {
    margin-top: 0.9rem;
}

/* Keep linked-to blocks clear of the sticky nav */
.explainer-block {
    scroll-margin-top: 4.5rem;
}

/* FOOTER — on every page, so the imprint is always one click away (ECG § 5) */
.site-footer {
    margin-top: auto; /* pushed to the bottom when the page is short */
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 0.4rem 0.8rem;
    padding: 1.5rem 1rem 2rem;
    border-top: 1px solid var(--border-bright);
    background: var(--surface);
    font-size: 0.75rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: var(--text-muted);
}

.site-footer a {
    color: var(--text-muted);
}

.site-footer a:hover {
    color: var(--green2);
}

/* Download menu note (platforms without a build yet) */
.menu-note {
    display: block;
    padding: 4px 15px;
    font-size: 0.8rem;
    color: var(--brown1);
    opacity: 0.8;
}

/* Keyboard focus is visible everywhere */
a:focus-visible,
button:focus-visible,
input:focus-visible {
    outline: 2px solid var(--green2);
    outline-offset: 2px;
}