.il-page {
    max-width: 1140px;
    margin: 0 auto 56px;
    padding: 0 16px;
}

.il-hub-hero {
    display: grid;
    gap: 26px;
    padding: 26px 24px;
}

.il-hub-hero__copy p {
    margin: 0 0 1.05em;
}

.il-hub-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 14px;
}

.il-hub-sections {
    margin-top: 22px;
    padding: 26px 24px;
}

.il-hub-grid {
    display: grid;
    gap: 12px;
}

.il-hub-card {
    display: grid;
    grid-template-columns: auto 1fr auto;
    gap: 14px;
    align-items: start;
    padding: 16px 18px;
    border: 1px solid #e7ecf2;
    border-radius: 18px;
    background: #fff;
    text-decoration: none;
    color: #304154;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.il-hub-card:hover {
    transform: translateY(-2px);
    border-color: rgba(201, 155, 59, 0.5);
    box-shadow: 0 14px 30px rgba(15, 30, 61, 0.08);
}

.il-hub-card__num {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, var(--tig-accent, #c99b3b), var(--tig-accent-dark, #a67d2b));
    color: #fff;
    font-weight: 800;
}

.il-hub-card__title {
    font-weight: 800;
    color: #253548;
    margin-bottom: 4px;
}

.il-hub-card__excerpt {
    color: #6c7888;
    font-size: 0.95rem;
    line-height: 1.55;
}

.il-hub-card__chev {
    color: var(--tig-accent-dark, #a67d2b);
    padding-top: 2px;
}

.il-breadcrumb {
    margin-top: 22px;
    padding: 14px 16px;
}

.il-breadcrumb__link {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    text-decoration: none;
    font-weight: 800;
    color: var(--tig-accent-dark, #a67d2b);
}

.il-section--single {
    border-top: 0;
    padding-top: 8px;
}

.il-nav {
    margin-top: 22px;
    padding: 18px 18px;
}

.il-nav-grid {
    display: grid;
    gap: 12px;
}

.il-nav-link {
    display: block;
    text-decoration: none;
    padding: 14px 16px;
    border-radius: 16px;
    border: 1px solid #e7ecf2;
    background: #fff;
    color: #253548;
    transition: border-color 0.2s ease, transform 0.2s ease;
}

.il-nav-link:hover {
    transform: translateY(-1px);
    border-color: rgba(201, 155, 59, 0.5);
}

.il-nav-link--hub {
    border-color: rgba(201, 155, 59, 0.35);
    background: linear-gradient(135deg, rgba(201, 155, 59, 0.08), rgba(255, 255, 255, 0.95));
}

.il-nav-kicker {
    display: block;
    font-size: 0.78rem;
    font-weight: 900;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: #6c7888;
    margin-bottom: 6px;
}

.il-nav-title {
    display: block;
    font-size: 1.02rem;
    font-weight: 900;
    color: #253548;
    line-height: 1.25;
}

.il-nav-item--right {
    text-align: right;
}

.il-surface {
    background: linear-gradient(180deg, #ffffff 0%, #fbfcfe 100%);
    border: 1px solid #e7ecf2;
    border-radius: 24px;
    box-shadow: 0 18px 54px rgba(15, 30, 61, 0.08);
}

.il-intro {
    display: grid;
    gap: 28px;
    padding: 24px;
}

.il-kicker {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 16px;
    padding: 7px 14px;
    border-radius: 999px;
    background: rgba(201, 155, 59, 0.12);
    color: var(--tig-accent-dark, #a67d2b);
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.04em;
    text-transform: uppercase;
}

.il-intro-copy {
    max-width: 62ch;
    color: #415063;
    font-size: 1.04rem;
    line-height: 1.95;
}

.il-intro-title {
    margin: 0 0 10px;
    color: #253548;
    font-size: clamp(1.25rem, 1.1rem + 0.8vw, 1.7rem);
    font-weight: 900;
    letter-spacing: -0.02em;
    line-height: 1.15;
}

.il-intro-actions {
    margin-top: 14px;
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
}

.il-btn-primary--compact {
    min-height: 44px;
    padding: 0 16px;
    border-radius: 14px;
}

.il-intro-copy p {
    margin: 0 0 1.15em;
}

.il-intro-media {
    display: flex;
    justify-content: center;
    align-items: flex-start;
    gap: 14px;
}

.il-photo-card {
    overflow: hidden;
    border-radius: 22px;
    border: 1px solid #edf2f7;
    background: #fff;
}

/* Kitap kapağı: doğal en-boy oranı, kırpma yok (dikey kapaklar için aspect-ratio kullanma) */
.il-cover-card {
    margin: 0;
    overflow: hidden;
    border-radius: 22px;
    border: 1px solid #edf2f7;
    background: #fff;
    padding: 12px;
    display: block;
}

.il-hub-hero__media {
    display: flex;
    justify-content: center;
    align-items: flex-start;
}

.il-hub-hero .il-cover-card,
.il-intro-media .il-cover-card {
    width: 100%;
    max-width: min(100%, 340px);
    margin-inline: auto;
}

.il-cover-card img,
.il-photo-card img {
    display: block;
    width: 100%;
    height: auto;
}

.il-cover-card img {
    max-width: 100%;
    height: auto;
    object-fit: contain;
}

.il-photo-card img {
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.il-toc {
    margin-top: 22px;
    padding: 26px 24px;
}

.il-section-heading {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    margin-bottom: 18px;
}

.il-section-heading h2,
.il-section-heading h3 {
    margin: 0;
    color: #253548;
    font-size: 1.3rem;
    font-weight: 800;
}

.il-heading-line {
    width: 64px;
    height: 3px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--tig-accent, #c99b3b), rgba(201, 155, 59, 0.08));
}

.il-toc-grid {
    display: grid;
    gap: 12px;
}

.il-toc-link {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 14px;
    padding: 16px 18px;
    border: 1px solid #e7ecf2;
    border-radius: 18px;
    background: #fff;
    color: #304154;
    text-decoration: none;
    transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.il-toc-link:hover,
.il-toc-link.is-active {
    transform: translateY(-2px);
    border-color: rgba(201, 155, 59, 0.5);
    box-shadow: 0 14px 30px rgba(15, 30, 61, 0.08);
    background: rgba(255, 255, 255, 0.96);
}

.il-toc-num {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--tig-accent, #c99b3b), var(--tig-accent-dark, #a67d2b));
    color: #fff;
    font-size: 0.9rem;
    font-weight: 800;
}

.il-toc-text strong {
    display: block;
    font-size: 1rem;
    font-weight: 700;
}

.il-toc-text span {
    display: block;
    margin-top: 4px;
    color: #6c7888;
    font-size: 0.9rem;
}

.il-toc-link i {
    color: var(--tig-accent-dark, #a67d2b);
}

.il-reading {
    margin-top: 22px;
    padding: 28px 24px 32px;
}

.il-section {
    scroll-margin-top: 120px;
    padding: 24px 0 30px;
    border-top: 1px solid #edf2f7;
}

.il-section:first-of-type {
    border-top: 0;
    padding-top: 4px;
}

.il-section p,
.il-section li,
.il-section blockquote {
    max-width: 70ch;
    color: #3f4d60;
    font-size: 1.04rem;
    line-height: 1.95;
}

.il-section p {
    margin: 0 0 1.15em;
}

.il-section ul,
.il-section ol {
    margin: 0 0 1.3em;
    padding-left: 1.35rem;
}

.il-section li + li {
    margin-top: 0.7em;
}

.il-section blockquote {
    margin: 1.6rem 0 0;
    padding: 18px 22px;
    border-left: 4px solid var(--tig-accent, #c99b3b);
    border-radius: 0 18px 18px 0;
    background: rgba(201, 155, 59, 0.08);
}

/* Bölüm görseli: okuma gövdesinin dışında (breadcrumb ile metin arası) */
.il-section-visual {
    margin-top: 22px;
    padding: 18px 18px 20px;
}

.il-section-visual__figure {
    margin: 0;
}

.il-section-visual__figure img {
    display: block;
    width: 100%;
    max-width: none;
    height: auto;
    border-radius: 20px;
    box-shadow: 0 18px 48px rgba(15, 30, 61, 0.12);
}

.il-download {
    margin-top: 24px;
    padding: 26px 24px;
}

.il-download-grid {
    display: grid;
    gap: 16px;
    align-items: start;
}

.il-download-media {
    margin: 0;
    overflow: hidden;
    border-radius: 18px;
    border: 1px solid #edf2f7;
    background: #fff;
    box-shadow: 0 16px 44px rgba(15, 30, 61, 0.10);
}

.il-download-media img {
    display: block;
    width: 100%;
    height: auto;
    aspect-ratio: 16 / 10;
    object-fit: cover;
}

.il-download-copy {
    max-width: 64ch;
    color: #526173;
    line-height: 1.8;
}

.il-download-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 18px;
}

.il-btn-primary,
.il-btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    min-height: 50px;
    padding: 0 20px;
    border-radius: 14px;
    text-decoration: none;
    font-weight: 700;
    transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.il-btn-primary {
    background: linear-gradient(135deg, var(--tig-accent, #c99b3b), var(--tig-accent-dark, #a67d2b));
    color: #fff;
    box-shadow: 0 12px 28px rgba(201, 155, 59, 0.28);
}

.il-btn-secondary {
    border: 1px solid #d8e0ea;
    background: #fff;
    color: #324355;
}

.il-btn-primary:hover,
.il-btn-secondary:hover {
    transform: translateY(-1px);
}

.il-publication {
    margin-top: 18px;
    color: #67768a;
    font-size: 0.92rem;
    line-height: 1.8;
}

@media (min-width: 900px) {
    .il-intro {
        grid-template-columns: minmax(0, 1.2fr) minmax(280px, 0.8fr);
        padding: 32px;
    }

    .il-hub-hero {
        grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
        padding: 34px 32px;
    }

    .il-hub-sections {
        padding-left: 32px;
        padding-right: 32px;
    }

    .il-hub-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 14px;
    }

    .il-nav-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .il-download-grid {
        grid-template-columns: minmax(0, 1fr) minmax(0, 320px);
    }

    .il-toc-grid {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }

    .il-reading,
    .il-toc,
    .il-download,
    .il-section-visual {
        padding-left: 32px;
        padding-right: 32px;
    }
}

@media (max-width: 767px) {
    .il-page {
        padding: 0 12px;
    }

    .il-intro,
    .il-toc,
    .il-reading,
    .il-download,
    .il-section-visual {
        padding-left: 18px;
        padding-right: 18px;
    }

    .il-toc-link {
        grid-template-columns: auto 1fr;
    }

    .il-toc-link i {
        display: none;
    }

    .il-section p,
    .il-section li,
    .il-section blockquote {
        font-size: 1rem;
        line-height: 1.85;
    }

    .il-download-actions {
        flex-direction: column;
    }

    .il-btn-primary,
    .il-btn-secondary {
        width: 100%;
    }
}