/* ── Kukicha tea palette ── */
:root {
    --tea-leaf: #7a9e5a;
    --tea-leaf-dim: #5c7a42;
    --tea-leaf-bright: #95bf6e;
    --twig-brown: #b8956a;
    --twig-dark: #8a6d4a;
    --twig-light: #d4b896;
    --brew-gold: #c9a84c;
    --brew-amber: #e0c47a;
    --stem-green: #4a6e3a;
}

/* Override Oat CSS variables for kukicha theme */
@media (prefers-color-scheme: dark) {
    :root {
        --color-primary: var(--tea-leaf);
        --color-primary-hover: var(--tea-leaf-bright);
    }
}
@media (prefers-color-scheme: light) {
    :root {
        --color-primary: var(--tea-leaf-dim);
        --color-primary-hover: var(--stem-green);
    }
}

/* Inline code badges */
code {
    color: var(--brew-gold);
}

/* Global link color */
a {
    color: var(--tea-leaf-bright);
}
a:hover {
    color: var(--brew-amber);
}

/* ── Hero ── */
.hero {
    text-align: center;
    padding: 3rem 0 2rem;
    position: relative;
}
.hero h1 {
    font-size: 2.2rem;
    margin-bottom: 0.5rem;
    line-height: 1.3;
}
.hero .subtitle {
    color: var(--color-text-secondary);
    margin-bottom: 1.5rem;
    font-size: 1.1rem;
}
.hero-badges {
    display: flex;
    gap: 0.5rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 0.75rem;
}
.hero-badges .badge {
    font-size: 0.85rem;
}
.hero-cta {
    display: flex;
    gap: 1rem;
    justify-content: center;
    align-items: center;
    flex-wrap: wrap;
    margin: 2rem 0;
}
.hero canvas {
    border: 2px solid var(--color-border);
    border-radius: 4px;
}

/* Tea leaf gradient behind hero */
.hero::before {
    content: "";
    position: absolute;
    top: -2rem;
    left: 50%;
    transform: translateX(-50%);
    width: 80%;
    height: 120%;
    background: radial-gradient(ellipse at center, rgba(122, 158, 90, 0.08) 0%, transparent 70%);
    pointer-events: none;
    z-index: -1;
}
/* Twig-colored version badge */
.hero .badge.success {
    background: var(--twig-brown);
    color: #1a1a1a;
    border-color: var(--twig-brown);
}

/* Styled hero badges */
.hero-badges .badge {
    border-color: var(--tea-leaf-dim);
    color: var(--tea-leaf-bright);
}

/* Primary button with tea-leaf green */
.hero-cta [data-variant="primary"],
.hero-cta .button.primary {
    background: var(--tea-leaf);
    border-color: var(--tea-leaf);
    color: #1a1a1a;
}
.hero-cta [data-variant="primary"]:hover,
.hero-cta .button.primary:hover {
    background: var(--tea-leaf-bright);
    border-color: var(--tea-leaf-bright);
}

/* Outline button with warm twig tone */
.hero-cta .button.outline {
    border-color: var(--twig-brown);
    color: var(--twig-light);
}
.hero-cta .button.outline:hover {
    background: var(--twig-brown);
    color: #1a1a1a;
}
.source-reveal {
    text-align: center;
    padding: 1rem 0 2rem;
}
.source-reveal summary {
    cursor: pointer;
    font-weight: bold;
    font-size: 1.1rem;
    display: list-item;
    color: var(--tea-leaf-bright);
}
.source-reveal summary:hover {
    color: var(--brew-amber);
}
.source-reveal a {
    color: var(--tea-leaf-bright);
}
.source-reveal pre {
    text-align: left;
    padding: 1rem;
    overflow-x: auto;
    font-size: 0.8rem;
    max-height: 60vh;
    overflow-y: auto;
}
.source-reveal .meta {
    color: var(--color-text-secondary);
    margin-top: 0.5rem;
}
.card-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 1.5rem;
    padding: 2rem 0;
}
.card-grid article header h3 {
    margin-top: 0;
}

/* Tea-themed cards: green top accent */
.card-grid article {
    border-top: 3px solid var(--tea-leaf-dim);
    transition: border-color 0.2s;
}
.card-grid article:hover {
    border-top-color: var(--tea-leaf-bright);
}
.card-grid article h3 {
    color: var(--tea-leaf-bright);
}
.card-grid article .button.outline {
    border-color: var(--tea-leaf-dim);
    color: var(--tea-leaf-bright);
}
.card-grid article .button.outline:hover {
    background: var(--tea-leaf-dim);
    color: #fff;
}
.code-compare {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    padding: 2rem 0;
}
.code-compare pre {
    padding: 1rem;
    overflow-x: auto;
    font-size: 0.85rem;
    border-left: 3px solid var(--twig-dark);
}
/* Kukicha side gets a green accent */
.code-compare > div:last-child pre {
    border-left-color: var(--tea-leaf);
}
.code-compare h4 {
    color: var(--twig-light);
}
.code-compare > div:last-child h4 {
    color: var(--tea-leaf-bright);
}
.tutorials {
    padding: 2rem 0;
}
.tutorials ul {
    list-style: none;
    padding: 0;
}
.tutorials li {
    padding: 0.5rem 0;
}
.tutorials li::before {
    content: "|> ";
    color: var(--brew-gold);
    font-weight: bold;
}
.tutorials h2 {
    color: var(--twig-light);
}
.tutorials [role="tab"] {
    transition: color 0.15s;
}
.tutorials [role="tab"][aria-selected="true"],
.tutorials [role="tab"]:hover {
    color: var(--tea-leaf-bright);
}
.tutorials a {
    color: var(--tea-leaf-bright);
}
.tutorials a:hover {
    color: var(--brew-amber);
}
button.nav-link {
    background: none;
    border: none;
    padding: var(--space-1, 0.25rem) var(--space-2, 0.5rem);
    font: inherit;
    color: inherit;
    cursor: pointer;
    text-decoration: none;
    border-radius: var(--radius-small, 4px);
    transition: background-color 0.15s;
}
button.nav-link:hover {
    background-color: rgba(122, 158, 90, 0.12);
    color: var(--tea-leaf-bright);
}

/* Navbar brand in tea green */
nav[data-topnav] strong {
    color: var(--tea-leaf-bright);
}
nav[data-topnav] a:hover {
    color: var(--tea-leaf-bright);
}
footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--color-text-secondary);
}
footer a {
    color: var(--twig-light);
}
footer a:hover {
    color: var(--brew-amber);
}
hr {
    border-color: var(--tea-leaf-dim);
    opacity: 0.3;
}

/* Section headings — warm accent */
.code-compare + .card-grid article:nth-child(1) { border-top-color: var(--brew-gold); }
.code-compare + .card-grid article:nth-child(2) { border-top-color: var(--tea-leaf); }
.code-compare + .card-grid article:nth-child(3) { border-top-color: var(--twig-brown); }

/* "What Kukicha Adds" heading */
h2 .badge.secondary {
    border-color: var(--twig-brown);
    color: var(--twig-light);
}

/* Playground dialog */
#playground-dialog {
    max-width: 92vw;
    width: 900px;
    padding: 0;
    border-radius: 6px;
}
.playground-shell {
    display: flex;
    flex-direction: column;
    height: 80vh;
    min-height: 400px;
}
.playground-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border-bottom: 1px solid var(--color-border);
    font-size: 0.95rem;
    flex-shrink: 0;
}
.playground-tabs {
    display: flex;
    gap: 0;
    border: 1px solid var(--color-border);
    border-radius: 4px;
    overflow: hidden;
}
.playground-tab {
    background: transparent;
    border: none;
    padding: 0.25rem 0.75rem;
    font: inherit;
    font-size: 0.85rem;
    cursor: pointer;
    color: var(--color-text-secondary);
    border-right: 1px solid var(--color-border);
}
.playground-tab:last-child {
    border-right: none;
}
.playground-tab.active {
    background: var(--tea-leaf);
    color: #1a1a1a;
}
.playground-run-mode {
    display: flex;
    flex-direction: column;
    flex: 1;
    min-height: 0;
}
.playground-pane-full {
    flex: 1;
    min-height: 0;
}
.playground-status {
    font-size: 0.8rem;
    color: var(--color-text-secondary);
}
.playground-status.loading {
    color: var(--color-primary);
}
.playground-status.error {
    color: var(--color-danger, #c00);
}
.playground-close {
    background: none;
    border: none;
    font-size: 1.2rem;
    cursor: pointer;
    padding: 0 0.25rem;
    color: var(--color-text-secondary);
}
.playground-toolbar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
    font-size: 0.9rem;
}
.playground-panes {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0;
    flex: 1;
    min-height: 0;
}
.playground-pane {
    display: flex;
    flex-direction: column;
    min-height: 0;
    border-right: 1px solid var(--color-border);
}
.playground-pane:last-child {
    border-right: none;
}
.playground-pane-label {
    padding: 0.35rem 1rem;
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--color-text-secondary);
    border-bottom: 1px solid var(--color-border);
    flex-shrink: 0;
}
.playground-pane textarea {
    flex: 1;
    width: 100%;
    box-sizing: border-box;
    border: none;
    resize: none;
    font-family: monospace;
    font-size: 0.82rem;
    padding: 0.75rem 1rem;
    outline: none;
    background: transparent;
    color: var(--color-text);
    min-height: 0;
}
.playground-errors {
    padding: 0.5rem 1rem;
    font-family: monospace;
    font-size: 0.8rem;
    color: var(--color-danger, #c00);
    background: var(--color-bg-alt, #fff5f5);
    border-top: 1px solid var(--color-border);
    white-space: pre-wrap;
    flex-shrink: 0;
}
.playground-hint {
    padding: 0.35rem 1rem;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}
.playground-run {
    margin-left: auto;
}
.playground-output-section {
    border-top: 1px solid var(--color-border);
    flex-shrink: 0;
}
.playground-run-output {
    margin: 0;
    padding: 0.75rem 1rem;
    font-family: monospace;
    font-size: 0.82rem;
    white-space: pre-wrap;
    min-height: 4rem;
    max-height: 20rem;
    overflow-y: auto;
    background: var(--color-bg-alt);
    color: var(--color-text);
}
.playground-run-output.error {
    color: var(--color-danger, #c00);
}
.playground-footer {
    padding: 0.5rem 1rem;
    font-size: 0.75rem;
    color: var(--color-text-secondary);
    border-top: 1px solid var(--color-border);
    text-align: right;
    flex-shrink: 0;
}
.playground-footer a {
    color: var(--color-primary);
}

@media (max-width: 600px) {
    .code-compare {
        grid-template-columns: 1fr;
    }
    .hero h1 {
        font-size: 1.6rem;
    }
    .hero-cta {
        flex-direction: column;
    }
    #playground-dialog {
        max-width: 99vw;
        width: 99vw;
    }
    .playground-panes {
        grid-template-columns: 1fr;
    }
    .playground-shell {
        height: 90vh;
    }
}