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Playwright evidence snapshots listed in materials/leetcode/SOURCE_EVIDENCE.md. #}
{% macro logo_mark(size=24) %}
<svg class="mark" viewBox="0 0 24 24" width="{{ size }}" height="{{ size }}" role="img" aria-hidden="true" focusable="false">
<path d="M13.48 2.42a1.4 1.4 0 0 1 2.06 1.9l-4.2 4.5h6.2a1.4 1.4 0 0 1 0 2.8h-6.3l4.3 4.6a1.4 1.4 0 0 1-2.05 1.9l-5.2-5.55a5.05 5.05 0 0 1 0-6.9Z" fill="#070707"/>
<path d="M18.6 11.62h-7.1a1.4 1.4 0 0 1 0-2.8h7.1a1.4 1.4 0 0 1 0 2.8Z" fill="#b3b3b3"/>
<path d="m14.5 18.62-2.2-2.35a1.4 1.4 0 0 1 2.04-1.92l2.2 2.35a1.4 1.4 0 1 1-2.04 1.92ZM8.28 8.82l3.9-4.17a1.4 1.4 0 0 0-2.04-1.92l-3.9 4.17a1.4 1.4 0 0 0 2.04 1.92Z" fill="#ffa116"/>
<path d="M6.1 17.9a1.4 1.4 0 0 1 2.05-1.9l3 3.2a1.4 1.4 0 1 1-2.05 1.9Z" fill="#070707"/>
</svg>
{% endmacro %}
{% macro logo(word=true, href='/') %}
<a class="brand{% if word %} brand--word{% endif %}" href="{{ href }}" aria-label="LeetCode">
{{ logo_mark() }}
{% if word %}<span class="brand__word">LeetCode</span>{% endif %}
</a>
{% endmacro %}
{# Marketing header: transparent over the dark hero, no search, no member
controls. Hidden below the source's own navigation breakpoint. #}
{% macro marketing_header(member) %}
<header class="mk-header">
<div class="mk-header__inner">
<a class="mk-brand" href="/" aria-label="LeetCode">
{{ logo_mark(30) }}
<span class="mk-brand__word">LeetCode</span>
</a>
<nav class="mk-nav" aria-label="Main">
<a class="mk-nav__link mk-nav__link--premium" href="/subscribe/">Premium</a>
<a class="mk-nav__link" href="/explore/">Explore</a>
<a class="mk-nav__link" href="/problemset/">Product</a>
<a class="mk-nav__link" href="/playground/new/empty">Developer</a>
</nav>
<div class="mk-header__end">
{% if member %}
<a class="mk-nav__link" href="/progress/">{{ member.username }}</a>
<form class="inline-form" method="post" action="/accounts/logout/">
<button class="mk-nav__link mk-nav__button" type="submit">Sign out</button>
</form>
{% else %}
<a class="mk-nav__link" href="/accounts/login/">Sign in</a>
{% endif %}
</div>
</div>
</header>
{% endmacro %}
{# Application header used by /problemset, the account pages and every local
boundary page. 50px tall, white, bottom hairline. #}
{% macro app_header(member, active='', word=true) %}
<header class="ap-header">
<div class="ap-header__inner">
<button class="ap-header__burger" type="button" data-nav-toggle aria-label="Menu" aria-expanded="false">
<span></span><span></span><span></span>
</button>
{{ logo(word) }}
<nav class="ap-nav" aria-label="Sections" data-nav>
<a class="ap-nav__link{% if active == 'problems' %} is-active{% endif %}" href="/problemset/">Problems</a>
<a class="ap-nav__link{% if active == 'contest' %} is-active{% endif %}" href="/contest">Contest</a>
<a class="ap-nav__link{% if active == 'discuss' %} is-active{% endif %}" href="/discuss/">Discuss</a>
<details class="ap-navmenu" data-navmenu="interview">
<summary class="ap-nav__link ap-nav__link--menu">Interview<span class="caret" aria-hidden="true"></span></summary>
<div class="ap-navmenu__panel">
<a href="/interview/"><strong>Online Interview</strong><span>Source-shaped interview workspace overview</span></a>
<a href="/assessment/"><strong>Assessment</strong><span>Practice with local question sets</span></a>
<a href="/business/contact/"><strong>Business</strong><span>Team and hiring enquiries</span></a>
</div>
</details>
<details class="ap-navmenu" data-navmenu="store">
<summary class="ap-nav__link ap-nav__link--store">Store<span class="caret" aria-hidden="true"></span></summary>
<div class="ap-navmenu__panel ap-navmenu__panel--end">
<a href="/store/"><strong>Store</strong><span>Captured loading state</span></a>
<a href="/subscribe/"><strong>Premium</strong><span>Plans and local checkout boundary</span></a>
<a href="/quest/"><strong>Quest</strong><span>Turn practice into progress</span></a>
</div>
</details>
<a class="ap-nav__student" href="/student/" aria-label="Students">
<svg viewBox="0 0 32 24" width="32" height="24" aria-hidden="true" focusable="false">
<path d="M4 11 16 5l12 6-12 6Z" fill="#ffa116"/>
<path d="M9 13v5c0 1.7 3.1 3 7 3s7-1.3 7-3v-5l-7 3.5Z" fill="#ffc95c"/>
<path d="M27.4 11.7v6.6" stroke="#ffa116" stroke-width="1.4" stroke-linecap="round"/>
</svg>
</a>
</nav>
<div class="ap-header__end">
<form class="ap-search" action="/problemset/" method="get" role="search">
<span class="visually-hidden">Search</span>
<svg viewBox="0 0 16 16" width="16" height="16" aria-hidden="true" focusable="false"><circle cx="7" cy="7" r="5" fill="none" stroke="currentColor" stroke-width="1.6"/><path d="m11 11 3.4 3.4" stroke="currentColor" stroke-width="1.6" stroke-linecap="round"/></svg>
<input type="search" name="search" placeholder="Search" autocomplete="off" data-site-search>
<button class="visually-hidden" type="submit">Search</button>
</form>
<button class="ap-header__icon" type="button" data-site-search-toggle aria-label="Search">
<svg viewBox="0 0 16 16" width="18" height="18" aria-hidden="true" focusable="false"><circle cx="7" cy="7" r="5" fill="none" stroke="currentColor" stroke-width="1.6"/><path d="m11 11 3.4 3.4" stroke="currentColor" stroke-width="1.6" stroke-linecap="round"/></svg>
</button>
{% if member %}
<a class="ap-header__member" href="/progress/">{{ member.username }}</a>
<form class="inline-form" method="post" action="/accounts/logout/">
<button class="ap-header__link ap-header__button" type="submit">Sign out</button>
</form>
{% else %}
<a class="ap-header__link" href="/accounts/signup/">Register</a>
<span class="ap-header__or" aria-hidden="true">or</span>
<a class="ap-header__link" href="/accounts/login/">Log in</a>
{% endif %}
<a class="ap-header__premium" href="/subscribe/">Premium</a>
</div>
</div>
</header>
{% endmacro %}
{% macro us_flag() %}
<svg class="flag" viewBox="0 0 24 16" width="18" height="12" aria-hidden="true" focusable="false">
<rect width="24" height="16" fill="#f5f5f5"/>
<g fill="#d32f2f"><rect y="0" width="24" height="1.6"/><rect y="3.2" width="24" height="1.6"/><rect y="6.4" width="24" height="1.6"/><rect y="9.6" width="24" height="1.6"/><rect y="12.8" width="24" height="1.6"/></g>
<rect width="10" height="8.8" fill="#1a237e"/>
</svg>
{% endmacro %}
{# Marketing footer, from home-desktop / home-mobile. #}
{% macro marketing_footer() %}
<footer class="mk-footer">
<p class="mk-footer__copy">Copyright © 2026 LeetCode</p>
<nav class="mk-footer__nav" aria-label="Footer">
<a href="/app/"><span class="mk-footer__phone" aria-hidden="true"></span>Download App</a>
<span class="mk-footer__bar" aria-hidden="true">|</span>
<a href="/support/">Help Center</a>
<span class="mk-footer__bar" aria-hidden="true">|</span>
<a href="/bugbounty/">Bug Bounty</a>
<span class="mk-footer__bar" aria-hidden="true">|</span>
<a href="/terms/">Terms</a>
<span class="mk-footer__bar" aria-hidden="true">|</span>
<a href="/privacy/">Privacy Policy</a>
</nav>
<p class="mk-footer__region"><a href="/region/">{{ us_flag() }} United States</a></p>
</footer>
{% endmacro %}
{# Application footer, from login-desktop / password-reset-desktop. #}
{% macro app_footer(tone='grey') %}
<footer class="ap-footer ap-footer--{{ tone }}">
<nav class="ap-footer__inner" aria-label="Footer">
<span class="ap-footer__copy">Copyright © 2026 LeetCode</span>
<span class="ap-footer__links">
<a href="/app/"><span class="mk-footer__phone" aria-hidden="true"></span>Download App</a>
<a href="/hc/en-us">Help Center</a>
<a href="/bugbounty/">Bug Bounty</a>
<a href="/interview/">Assessment</a>
<a href="/terms/">Terms</a>
<a href="/privacy/">Privacy Policy</a>
</span>
<a class="ap-footer__region" href="/region/">{{ us_flag() }} United States</a>
</nav>
</footer>
{% endmacro %}
{% macro difficulty_pill(difficulty) %}
<span class="pill pill--{{ difficulty|lower }}">{{ difficulty|difficulty_label }}</span>
{% endmacro %}
{% macro status_icon(status) %}
{% if status == 'solved' %}
<span class="status status--solved" title="Solved" role="img" aria-label="Solved">
<svg viewBox="0 0 16 16" width="16" height="16" aria-hidden="true" focusable="false"><path d="m3 8.4 3.2 3.2L13 4.8" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>
</span>
{% elif status == 'attempted' %}
<span class="status status--attempted" title="Attempted" role="img" aria-label="Attempted">
<svg viewBox="0 0 16 16" width="16" height="16" aria-hidden="true" focusable="false"><path d="M13 8a5 5 0 1 1-1.6-3.7" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round"/><path d="M13 3v3h-3" fill="none" stroke="currentColor" stroke-width="2" stroke-linecap="round" stroke-linejoin="round"/></svg>
</span>
{% else %}
<span class="status status--todo" aria-hidden="true"></span>
{% endif %}
{% endmacro %}
{# The source renders the frequency column behind a Premium lock and printed no
values, so the clone renders the lock rather than inventing a bar. #}
{% macro frequency_lock() %}
<span class="freq-lock" role="img" aria-label="Frequency is a Premium feature">
<span class="freq-lock__bar"></span><span class="freq-lock__bar"></span>
<svg viewBox="0 0 12 12" width="11" height="11" aria-hidden="true" focusable="false"><rect x="2" y="5" width="8" height="6" rx="1.4" fill="currentColor"/><path d="M4 5V3.6a2 2 0 0 1 4 0V5" fill="none" stroke="currentColor" stroke-width="1.3"/></svg>
<span class="freq-lock__bar"></span><span class="freq-lock__bar"></span>
</span>
{% endmacro %}
{% macro social_row(extra=false) %}
<div class="social-row" role="group" aria-label="Other sign-in options">
<form class="inline-form" method="post" action="/accounts/social/google/">
<button class="social" type="submit" aria-label="Continue with Google">
<svg viewBox="0 0 24 24" width="16" height="16" aria-hidden="true" focusable="false"><path d="M12 4.2a7.8 7.8 0 1 0 7.6 9.4h-7.6v-3h11a9.4 9.4 0 1 1-3.1-7.3l-2.2 2.1A7.7 7.7 0 0 0 12 4.2Z" fill="currentColor"/></svg>
</button>
</form>
<form class="inline-form" method="post" action="/accounts/social/github/">
<button class="social" type="submit" aria-label="Continue with GitHub">
<svg viewBox="0 0 24 24" width="16" height="16" aria-hidden="true" focusable="false"><path d="M12 2a10 10 0 0 0-3.2 19.5c.5.1.7-.2.7-.5v-1.8c-2.8.6-3.4-1.3-3.4-1.3-.4-1.2-1.1-1.5-1.1-1.5-.9-.6.1-.6.1-.6 1 .1 1.5 1 1.5 1 .9 1.5 2.4 1.1 3 .8.1-.6.3-1.1.6-1.4-2.2-.2-4.6-1.1-4.6-5 0-1.1.4-2 1-2.7-.1-.3-.4-1.3.1-2.7 0 0 .8-.3 2.7 1a9.4 9.4 0 0 1 5 0c1.9-1.3 2.7-1 2.7-1 .5 1.4.2 2.4.1 2.7.6.7 1 1.6 1 2.7 0 3.9-2.4 4.8-4.6 5 .4.3.7.9.7 1.9v2.8c0 .3.2.6.7.5A10 10 0 0 0 12 2Z" fill="currentColor"/></svg>
</button>
</form>
<form class="inline-form" method="post" action="/accounts/social/apple/">
<button class="social" type="submit" aria-label="Continue with Apple">
<svg viewBox="0 0 24 24" width="16" height="16" aria-hidden="true" focusable="false"><path d="M16.4 12.7c0-2.2 1.8-3.3 1.9-3.3-1-1.5-2.6-1.7-3.2-1.7-1.4-.1-2.7.8-3.3.8-.7 0-1.7-.8-2.8-.8a4.2 4.2 0 0 0-3.5 2.1c-1.5 2.6-.4 6.4 1 8.5.7 1 1.6 2.2 2.7 2.2 1.1 0 1.5-.7 2.8-.7 1.3 0 1.6.7 2.8.7 1.2 0 1.9-1 2.6-2a9 9 0 0 0 1.2-2.4c-.1 0-2.2-.9-2.2-3.4ZM14.3 6a4 4 0 0 0 .9-2.9c-.9 0-2 .6-2.6 1.3a3.8 3.8 0 0 0-.9 2.8c1 0 2-.5 2.6-1.2Z" fill="currentColor"/></svg>
</button>
</form>
{% if extra %}
<form class="inline-form" method="post" action="/accounts/social/more/">
<button class="social" type="submit" aria-label="More sign-in options">
<svg viewBox="0 0 24 24" width="16" height="16" aria-hidden="true" focusable="false"><circle cx="6" cy="12" r="1.8" fill="currentColor"/><circle cx="12" cy="12" r="1.8" fill="currentColor"/><circle cx="18" cy="12" r="1.8" fill="currentColor"/></svg>
</button>
</form>
{% endif %}
</div>
{% endmacro %}
{# The source card carries a Cloudflare Turnstile widget. A third-party
challenge cannot run offline, so the slot holds a local, server-verified
check with the same shape and position; nothing is sent anywhere. #}
{% macro verification_widget(token, checked=false) %}
<div class="verify" data-verify>
<label class="verify__row">
<input class="verify__box" type="checkbox" name="human_check" value="on"{% if checked %} checked{% endif %}>
<span class="verify__label">Verify you are human</span>
</label>
<input type="hidden" name="human_verification" value="{{ token }}">
<div class="verify__brand">
<span class="verify__wordmark">LOCAL CHECK</span>
<span class="verify__links">Verified in this process</span>
</div>
</div>
{% endmacro %}
{% macro field_error(errors, name) %}
{% if errors and errors.get(name) %}
<p class="field-error" role="alert">{{ errors.get(name) }}</p>
{% endif %}
{% endmacro %}
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