* {
    box-sizing: border-box;
}

:root {
    --control-bar-height: 12rem;
}

body {
    background-color: #faf6f0;
    color: #1a1a1a;
    font-family: sans-serif;
    margin: 0;
}

.page {
    max-width: 700px;
    margin: 0 auto;
    padding: 2rem 1.5rem calc(var(--control-bar-height) + 1.5rem);
}

h1,
h2 {
    color: #e63946;
}

.kicker {
    text-transform: uppercase;
    letter-spacing: 0.1em;
    font-size: 0.75rem;
    font-weight: bold;
    color: #2a9d8f;
    margin: 0 0 0.5rem;
}

.post-header h1 {
    margin-top: 0;
    margin-bottom: 0.5rem;
}

.byline {
    color: #6b6b6b;
    margin-top: 0;
}

.tags {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.tag {
    background-color: #ffffff;
    border: 1px solid #e0e0e0;
    border-radius: 999px;
    padding: 0.2rem 0.75rem;
    font-size: 0.8rem;
}

.tag.feature {
    background-color: #e63946;
    border-color: #e63946;
    color: #ffffff;
    font-weight: bold;
}

.post-section,
.further-reading,
.comments {
    margin-bottom: 2.5rem;
}

.post-section p {
    line-height: 1.6;
}

.pull-quote {
    border-left: 4px solid #2a9d8f;
    margin: 1.5rem 0;
    padding: 0.25rem 0 0.25rem 1rem;
    font-style: italic;
    color: #1a1a1a;
}

.callout {
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 1rem;
    margin: 1.5rem 0;
    background-color: #ffffff;
}

.callout h3 {
    margin: 0 0 0.5rem;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.callout[data-type="tip"] {
    border-color: #2a9d8f;
}

.callout[data-type="tip"] h3 {
    color: #2a9d8f;
}

.callout[data-type="warning"] {
    border-color: #e63946;
}

.callout[data-type="warning"] h3 {
    color: #e63946;
}

.callout p {
    margin: 0;
}

.photo {
    margin: 1.5rem 0;
}

.photo-placeholder {
    width: 100%;
    height: 160px;
    border-radius: 8px;
    background: repeating-linear-gradient(
        45deg,
        #2a9d8f,
        #2a9d8f 10px,
        #218075 10px,
        #218075 20px
    );
}

.photo figcaption {
    color: #6b6b6b;
    font-size: 0.85rem;
    margin-top: 0.5rem;
}

pre {
    background-color: #1a1a1a;
    color: #f4f1ec;
    border-radius: 8px;
    padding: 1rem;
    overflow-x: auto;
    font-size: 0.85rem;
    margin: 1.5rem 0;
}

.further-reading ul {
    list-style: none;
    padding: 0;
}

.further-reading li {
    padding: 0.6rem 0;
    border-bottom: 1px solid #e0e0e0;
}

.further-reading a {
    color: #1a1a1a;
    text-decoration: none;
}

.further-reading a:hover {
    color: #e63946;
}

.comments h2 {
    margin-bottom: 1rem;
}

.comment {
    background-color: #ffffff;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.75rem;
}

.comment--reply {
    margin-left: 2rem;
}

.comment--pinned {
    border-color: #2a9d8f;
}

.comment-author {
    font-weight: bold;
    margin: 0 0 0.25rem;
}

.comment p:last-child {
    margin: 0;
}

.post-footer {
    color: #6b6b6b;
    font-size: 0.9rem;
    border-top: 1px solid #e0e0e0;
    padding-top: 1.5rem;
}

.selector-goal {
    position: relative;
    outline: 3px solid #ff6b35;
    outline-offset: 2px;
    z-index: 2;
}

.selector-goal::after {
    content: "\1F3AF";
    position: absolute;
    top: -0.65rem;
    right: -0.65rem;
    width: 1.1rem;
    height: 1.1rem;
    line-height: 1.1rem;
    text-align: center;
    font-size: 0.7rem;
    background-color: #ff6b35;
    border-radius: 50%;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.4);
    z-index: 3;
    pointer-events: none;
}

.selector-hit {
    background-color: rgba(230, 57, 70, 0.18);
}

.attention-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(0, 0, 0, 0);
    z-index: 4;
    pointer-events: none;
    transition: background-color 0.4s ease;
}

.attention-backdrop--active {
    background-color: rgba(0, 0, 0, 0.6);
}

.control-bar {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background-color: #1a1a1a;
    color: #ffffff;
    padding: 0.75rem 1.5rem 1rem;
    box-shadow: 0 -4px 12px rgba(0, 0, 0, 0.2);
    z-index: 5;
    transition: box-shadow 0.4s ease;
}

.control-bar--enter {
    translate: 0 -10vh;
}

.control-bar--sliding {
    transition:
        translate 1s ease,
        box-shadow 0.4s ease;
}

.control-bar--attention {
    box-shadow:
        0 -4px 12px rgba(0, 0, 0, 0.2),
        0 0 0 3px #ff6b35,
        0 0 28px 6px rgba(255, 107, 53, 0.55);
}

.control-bar-inner {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-main {
    width: 100%;
    max-width: 700px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    gap: 0.7rem;
}

.control-legend {
    display: flex;
    justify-content: center;
    margin-top: 1rem;
}

.control-top {
    display: flex;
    justify-content: space-between;
    align-items: baseline;
    font-size: 0.85rem;
    margin-bottom: 0.4rem;
}

.challenge-count {
    font-weight: bold;
    color: #ffffff;
}

.solved-count {
    color: #2a9d8f;
    font-weight: bold;
}

.challenge-prompt {
    margin: 0 0 0.6rem;
}

.control-row {
    display: flex;
    gap: 0.5rem;
}

@media (min-width: 900px) {
    .control-bar-inner {
        flex-direction: row;
        align-items: flex-start;
        max-width: 1100px;
        margin: 0 auto;
        gap: 2.5rem;
    }

    .control-main {
        max-width: none;
        margin: 0;
        flex: 1;
    }

    .control-legend {
        flex: 0 0 auto;
        justify-content: flex-start;
        padding-top: 0.35rem;
    }

    .legend {
        flex-direction: column;
        align-items: flex-start;
        margin: 0;
    }
}

.nav-btn {
    background-color: #333333;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    padding: 0.5rem 0.9rem;
    font-size: 1rem;
    cursor: pointer;
}

.nav-btn:hover {
    background-color: #444444;
}

@keyframes nav-btn-pulse {
    0%,
    100% {
        scale: 1;
        box-shadow: 0 0 0 0 rgba(255, 107, 53, 0.55);
    }

    50% {
        scale: 1.2;
        box-shadow: 0 0 0 9px rgba(255, 107, 53, 0);
    }
}

.nav-btn--pulse {
    background-color: #ff6b35;
    animation: nav-btn-pulse 1.1s ease-in-out infinite;
}

.nav-btn--pulse:hover {
    background-color: #ff8354;
}

.selector-input {
    flex: 1;
    padding: 0.5rem 0.75rem;
    border-radius: 4px;
    border: none;
    font-family: monospace;
    font-size: 1rem;
}

.feedback {
    margin: 0.5rem 0 0;
    min-height: 1.2em;
    font-weight: bold;
}

.feedback.state-empty {
    color: #b3b3b3;
    font-weight: normal;
}

.feedback.state-invalid {
    color: #ff8b94;
}

.feedback.state-partial {
    color: #ffd166;
}

.feedback.state-correct {
    color: #4fd1c5;
}

.feedback.state-easter-egg {
    color: #ff6b35;
    font-style: italic;
}

.technique-hint {
    margin: 0.6rem 0 0;
    font-size: 0.8rem;
    font-weight: normal;
    font-style: italic;
    color: #d9d9d9;
}

.legend {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin: 0;
    font-size: 0.8rem;
    color: #b3b3b3;
    font-weight: normal;
}

.legend-item {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
}

.legend-swatch {
    display: inline-block;
    width: 1.1rem;
    height: 1.1rem;
    line-height: 1.1rem;
    text-align: center;
    font-size: 0.7rem;
}

.legend-swatch--goal {
    background-color: #ff6b35;
    border-radius: 50%;
}

.legend-swatch--hit {
    color: #e63946;
    font-size: 0.9rem;
}

.devtools-modal {
    max-width: 420px;
    border: none;
    border-radius: 10px;
    padding: 1.5rem;
    background-color: #ffffff;
    color: #1a1a1a;
    box-shadow: 0 12px 30px rgba(0, 0, 0, 0.3);
}

.devtools-modal::backdrop {
    background-color: rgba(0, 0, 0, 0.6);
}

.devtools-modal h2 {
    margin-top: 0;
    font-size: 1.15rem;
}

.howto-diagram {
    display: block;
    width: 100%;
    margin: 0.75rem 0;
}

.devtools-modal ul,
.devtools-modal ol {
    margin: 0;
    padding-left: 1.25rem;
    line-height: 1.5;
}

.devtools-modal li {
    margin-bottom: 0.75rem;
}

.devtools-modal li:last-child {
    margin-bottom: 0;
}

.devtools-modal code {
    background-color: #f4f1ec;
    padding: 0.1rem 0.3rem;
    border-radius: 3px;
    font-size: 0.9em;
}

.modal-close-btn {
    background-color: #e63946;
    color: #ffffff;
    border: none;
    border-radius: 4px;
    padding: 0.6rem 1.2rem;
    font-size: 1rem;
    font-weight: bold;
    cursor: pointer;
    width: 100%;
    margin-top: 0.5rem;
}

.modal-close-btn:hover {
    background-color: #d62828;
}