/*
  Articles Index Stylesheet
  Suggested Rails path: app/assets/stylesheets/articles.css

  Scope:
  - Designed for:
      <div class="content-wrapper">
        <h1>Articles</h1>
        <ul>...</ul>
      </div>
  - Selectors use direct children so this can coexist with article-page styles.
*/

.content-wrapper {
    --index-bg: #f7f8fb;
    --index-card-bg: #ffffff;
    --index-text: #172033;
    --index-muted: #64748b;
    --index-heading: #0f172a;
    --index-border: #dfe6ef;
    --index-link: #2458d3;
    --index-link-hover: #173fa1;
    --index-accent: #16a085;
    --index-shadow: 0 24px 70px rgba(15, 23, 42, 0.08);

    min-height: 100%;
    padding: clamp(1.25rem, 5vw, 5rem) clamp(1rem, 4vw, 2rem);
    color: var(--index-text);
    font-family:
        Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
        Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

/* Page title */

.content-wrapper>h1 {
    width: min(100%, 920px);
    margin: 0 auto 1.25rem;
    color: var(--index-heading);
    font-size: clamp(2.75rem, 9vw, 5.5rem);
    font-weight: 850;
    line-height: 0.98;
    letter-spacing: -0.06em;
    text-wrap: balance;
}

.content-wrapper>h1::after {
    content: "";
    display: block;
    width: 5rem;
    height: 0.35rem;
    margin-top: 1.15rem;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--index-link), var(--index-accent));
}

/* Article list container */

.content-wrapper>ul {
    width: min(100%, 920px);
    margin: clamp(1.5rem, 4vw, 2.5rem) auto 0;
    padding: 0;
    list-style: none;
    display: grid;
    gap: 1rem;
}

/* Article card */

.content-wrapper>ul>li {
    position: relative;
    overflow: hidden;
    border: 1px solid rgba(223, 230, 239, 0.9);
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.88);
    box-shadow: 0 14px 36px rgba(15, 23, 42, 0.055);
    transition:
        transform 180ms ease,
        box-shadow 180ms ease,
        border-color 180ms ease,
        background-color 180ms ease;
}

.content-wrapper>ul>li::before {
    content: "";
    position: absolute;
    inset: 0 auto 0 0;
    width: 0.35rem;
    background: linear-gradient(180deg, var(--index-link), var(--index-accent));
    opacity: 0;
    transition: opacity 180ms ease;
}

.content-wrapper>ul>li:hover,
.content-wrapper>ul>li:focus-within {
    transform: translateY(-3px);
    border-color: rgba(36, 88, 211, 0.28);
    background: var(--index-card-bg);
    box-shadow: var(--index-shadow);
}

.content-wrapper>ul>li:hover::before,
.content-wrapper>ul>li:focus-within::before {
    opacity: 1;
}

/* Full-card link */

.content-wrapper>ul>li>a {
    display: block;
    padding: clamp(1.1rem, 3vw, 1.55rem) clamp(1.15rem, 3vw, 1.75rem);
    color: var(--index-heading);
    font-size: clamp(1.05rem, 1rem + 0.35vw, 1.28rem);
    font-weight: 750;
    line-height: 1.35;
    letter-spacing: -0.02em;
    text-decoration: none;
    text-wrap: balance;
}

.content-wrapper>ul>li>a::after {
    content: "Read article →";
    display: block;
    margin-top: 0.7rem;
    color: var(--index-link);
    font-size: 0.88rem;
    font-weight: 750;
    letter-spacing: 0.01em;
    transition:
        color 160ms ease,
        transform 160ms ease;
}

.content-wrapper>ul>li>a:hover::after,
.content-wrapper>ul>li>a:focus-visible::after {
    color: var(--index-link-hover);
    transform: translateX(0.18rem);
}

.content-wrapper>ul>li>a:focus-visible {
    outline: 3px solid rgba(36, 88, 211, 0.24);
    outline-offset: -0.35rem;
    border-radius: 1.25rem;
}

/* Optional empty state, in case the list is ever empty */

.content-wrapper>ul:empty {
    display: block;
    padding: 1.25rem 1.5rem;
    border: 1px dashed var(--index-border);
    border-radius: 1.25rem;
    background: rgba(255, 255, 255, 0.68);
    color: var(--index-muted);
}

.content-wrapper>ul:empty::before {
    content: "No articles published yet.";
}

/* Responsive */

@media (max-width: 720px) {
    .content-wrapper {
        padding: 1.1rem;
    }

    .content-wrapper>h1 {
        font-size: clamp(2.5rem, 16vw, 4rem);
    }

    .content-wrapper>ul {
        gap: 0.85rem;
    }

    .content-wrapper>ul>li {
        border-radius: 1rem;
    }

    .content-wrapper>ul>li>a {
        padding: 1rem 1.05rem;
    }
}

/* Print */

@media print {
    .content-wrapper {
        padding: 0;
        background: #ffffff;
        color: #000000;
    }

    .content-wrapper>h1,
    .content-wrapper>ul {
        width: 100%;
    }

    .content-wrapper>ul>li {
        border-color: #cccccc;
        box-shadow: none;
        break-inside: avoid;
    }

    .content-wrapper>ul>li>a {
        color: #000000;
    }

    .content-wrapper>ul>li>a::after {
        content: "";
    }
}