/* CFF FrontEnd Home Page Template
   Uses the variables already defined in Style1.css.
   All selectors are prefixed with .cff-home to prevent conflicts. */

.cff-home {
    width: min(1180px, calc(100% - 34px));
    margin: 0 auto;
    padding: 46px 0 70px;
    color: var(--text);
}

.cff-home-intro {
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto;
    gap: 34px;
    align-items: end;
    padding: 34px;
    border-radius: var(--radius);
    background:
        radial-gradient(circle at 88% 18%, rgba(0, 217, 255, 0.12), transparent 18rem),
        radial-gradient(circle at 8% 0%, rgba(255, 122, 24, 0.16), transparent 22rem),
        var(--panel);
    box-shadow: var(--shadow);
    overflow: hidden;
}

.cff-home-intro h1 {
    max-width: 850px;
    margin: 12px 0 16px;
    font-size: clamp(2rem, 5vw, 4.5rem);
    line-height: 1;
    letter-spacing: -0.055em;
}

.cff-home-intro p {
    max-width: 760px;
    margin: 0;
    color: var(--soft);
    font-size: 1.04rem;
    line-height: 1.75;
}

.cff-home-kicker {
    color: var(--fire2);
    font-family: var(--mono);
    font-size: 0.78rem;
    letter-spacing: 0.08em;
    text-transform: uppercase;
}

.cff-home-quick-links {
    display: grid;
    gap: 9px;
    min-width: 210px;
}

.cff-home-quick-links a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    min-height: 44px;
    padding: 0 14px;
    border-radius: 13px;
    background: var(--panel2);
    color: var(--soft) !important;
    font-size: 0.84rem !important;
    font-weight: 700;
    transition: transform 180ms ease, background 180ms ease;
}

.cff-home-quick-links a::after {
    content: "→";
    color: var(--fire);
}

.cff-home-quick-links a:hover {
    transform: translateX(3px);
    background: rgba(255, 122, 24, 0.1);
}

.cff-home-section {
    padding-top: 48px;
}

.cff-home-section-last {
    padding-top: 22px;
}

.cff-home-section-heading {
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 20px;
    margin-bottom: 20px;
}

.cff-home-section-heading h2,
.cff-home-books h2 {
    margin: 7px 0 0;
    font-size: clamp(1.55rem, 3vw, 2.4rem);
    letter-spacing: -0.04em;
}

.cff-home-view-all,
.cff-home-read-link {
    color: var(--fire2) !important;
    font-family: var(--mono);
    font-size: 0.8rem !important;
    font-weight: 700;
}

.cff-home-feature-grid,
.cff-home-category-grid,
.cff-home-article-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.cff-home-feature,
.cff-home-category-card,
.cff-home-article-card,
.cff-home-books {
    background: color-mix(in srgb, var(--panel) 92%, transparent);
    box-shadow: 0 18px 52px rgba(0, 0, 0, 0.11);
}

.cff-home-feature {
    min-height: 320px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    padding: 26px;
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
}

.cff-home-feature::after {
    content: "";
    position: absolute;
    width: 260px;
    height: 260px;
    right: -110px;
    bottom: -140px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(255, 122, 24, 0.28), transparent 68%);
    pointer-events: none;
}

.cff-home-feature-secondary::after {
    background: radial-gradient(circle, rgba(0, 217, 255, 0.2), transparent 68%);
}

.cff-home-card-topline,
.cff-home-article-meta {
    display: flex;
    justify-content: space-between;
    gap: 14px;
    align-items: center;
    color: var(--muted);
    font-family: var(--mono);
    font-size: 0.74rem;
}

.cff-home-badge {
    display: inline-flex;
    padding: 6px 9px;
    border-radius: 999px;
    background: rgba(255, 122, 24, 0.12);
    color: var(--fire2);
    font-weight: 700;
}

.cff-home-badge-cyan {
    background: rgba(0, 217, 255, 0.1);
    color: var(--cyan);
}

.cff-home-feature-content {
    position: relative;
    z-index: 1;
}

.cff-home-category-name {
    color: var(--cyan);
    font-family: var(--mono);
    font-size: 0.76rem;
}

.cff-home-feature h3 {
    margin: 12px 0;
    max-width: 590px;
    font-size: clamp(1.45rem, 3vw, 2.45rem);
    line-height: 1.06;
    letter-spacing: -0.04em;
}

.cff-home-feature h3 a,
.cff-home-article-card h3 a {
    color: var(--text) !important;
    font-size: inherit !important;
}

.cff-home-feature p,
.cff-home-article-card p,
.cff-home-books p {
    color: var(--muted);
    line-height: 1.7;
}

.cff-home-category-card {
    min-height: 148px;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    gap: 17px;
    align-items: center;
    padding: 22px;
    border-radius: 19px;
    color: var(--text) !important;
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.cff-home-category-card:hover,
.cff-home-article-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 22px 58px rgba(0, 0, 0, 0.15);
}

.cff-home-category-icon {
    width: 58px;
    height: 58px;
    display: grid;
    place-items: center;
    border-radius: 17px;
    background: linear-gradient(135deg, rgba(255, 122, 24, 0.18), rgba(0, 217, 255, 0.1));
    color: var(--fire2);
    font-family: var(--mono);
    font-size: 0.9rem;
    font-weight: 800;
}

.cff-home-category-copy strong,
.cff-home-category-copy small {
    display: block;
}

.cff-home-category-copy strong {
    margin-bottom: 7px;
    color: var(--text);
    font-size: 1.05rem;
}

.cff-home-category-copy small {
    color: var(--muted);
    font-size: 0.83rem;
    line-height: 1.5;
}

.cff-home-category-count {
    color: var(--fire2);
    font-family: var(--mono);
    font-size: 0.72rem;
    white-space: nowrap;
}

.cff-home-books {
    display: grid;
    grid-template-columns: minmax(0, 1fr) 330px;
    gap: 34px;
    align-items: center;
    margin-top: 48px;
    padding: 32px;
    border-radius: var(--radius);
    position: relative;
    overflow: hidden;
}

.cff-home-books::before {
    content: "";
    position: absolute;
    inset: 0;
    background: linear-gradient(110deg, rgba(255, 122, 24, 0.08), transparent 44%, rgba(0, 217, 255, 0.08));
    pointer-events: none;
}

.cff-home-books-copy,
.cff-home-book-stack {
    position: relative;
    z-index: 1;
}

.cff-home-books p {
    max-width: 700px;
}

.cff-home-button {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 46px;
    margin-top: 10px;
    padding: 0 17px;
    border-radius: 14px;
    background: linear-gradient(135deg, var(--fire), var(--ember));
    color: #fff !important;
    font-size: 0.84rem !important;
    font-weight: 800;
    box-shadow: 0 14px 34px rgba(255, 122, 24, 0.2);
}

.cff-home-book-stack {
    min-height: 190px;
}

.cff-home-book {
    position: absolute;
    right: 8px;
    width: 245px;
    height: 54px;
    display: flex;
    align-items: center;
    padding-left: 22px;
    border-radius: 8px 13px 13px 8px;
    color: #fff;
    font-family: var(--mono);
    font-weight: 800;
    letter-spacing: 0.12em;
    box-shadow: 0 15px 28px rgba(0, 0, 0, 0.23);
    transform-origin: right center;
}

.cff-home-book::after {
    content: "";
    position: absolute;
    right: 13px;
    width: 40px;
    height: 2px;
    background: rgba(255, 255, 255, 0.55);
    box-shadow: 0 7px rgba(255, 255, 255, 0.32), 0 -7px rgba(255, 255, 255, 0.32);
}

.cff-home-book-one {
    top: 20px;
    background: linear-gradient(135deg, #b45309, #f97316);
    transform: rotate(3deg);
}

.cff-home-book-two {
    top: 76px;
    right: 34px;
    background: linear-gradient(135deg, #0369a1, #0891b2);
    transform: rotate(-2deg);
}

.cff-home-book-three {
    top: 132px;
    right: 15px;
    background: linear-gradient(135deg, #374151, #111827);
    transform: rotate(1deg);
}

.cff-home-article-card {
    min-height: 220px;
    padding: 23px;
    border-radius: 19px;
    transition: transform 180ms ease, box-shadow 180ms ease;
}

.cff-home-article-meta span {
    color: var(--cyan);
}

.cff-home-article-card h3 {
    margin: 18px 0 10px;
    font-size: 1.25rem;
    line-height: 1.25;
}

body.theme-dark .cff-home-intro,
body.theme-dark .cff-home-feature,
body.theme-dark .cff-home-category-card,
body.theme-dark .cff-home-article-card,
body.theme-dark .cff-home-books {
    background: #080b13;
    box-shadow: 0 16px 45px rgba(0, 0, 0, 0.3);
}

body.theme-dark .cff-home-intro {
    background: linear-gradient(135deg, #080b13, #060912);
}

body.theme-dark .cff-home-feature::after,
body.theme-dark .cff-home-books::before {
    opacity: 0.18;
}

body.theme-dark .cff-home-category-icon {
    background: #0d131f;
    color: var(--soft);
}

@media (max-width: 900px) {
    .cff-home-intro,
    .cff-home-books {
        grid-template-columns: 1fr;
    }

    .cff-home-quick-links {
        grid-template-columns: repeat(3, minmax(0, 1fr));
        min-width: 0;
    }

    .cff-home-book-stack {
        width: min(100%, 360px);
        margin: 0 auto;
    }
}

@media (max-width: 720px) {
    .cff-home-feature-grid,
    .cff-home-category-grid,
    .cff-home-article-grid {
        grid-template-columns: 1fr;
    }

    .cff-home-category-card {
        grid-template-columns: auto minmax(0, 1fr);
    }

    .cff-home-category-count {
        grid-column: 2;
    }
}

@media (max-width: 560px) {
    .cff-home {
        width: min(100% - 24px, 1180px);
        padding-top: 26px;
    }

    .cff-home-intro,
    .cff-home-feature,
    .cff-home-books {
        padding: 20px;
    }

    .cff-home-quick-links {
        grid-template-columns: 1fr;
    }

    .cff-home-section-heading {
        align-items: start;
        flex-direction: column;
    }

    .cff-home-category-card {
        padding: 18px;
    }
}

/* === Revised featured article and Amazon book list === */
.cff-home-intro {
    display: block;
    padding: 38px;
}

.cff-home-main-article {
    max-width: 920px;
}

.cff-home-main-article time {
    display: block;
    margin-bottom: 14px;
    color: var(--fire2);
    font-family: var(--mono);
    font-size: 0.78rem;
}

.cff-home-main-article h1 {
    max-width: 920px;
    margin: 0 0 18px;
    font-size: clamp(2rem, 5vw, 4.35rem);
    line-height: 1.02;
    letter-spacing: -0.055em;
}

.cff-home-main-article h1 a {
    color: var(--text) !important;
    font-size: inherit !important;
}

.cff-home-main-article p {
    max-width: 800px;
    margin: 0;
}

.cff-home-books {
    display: block;
}

.cff-home-books-heading {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: end;
    justify-content: space-between;
    gap: 24px;
    margin-bottom: 24px;
}

.cff-home-books-heading p {
    margin-bottom: 0;
}

.cff-home-book-grid {
    position: relative;
    z-index: 1;
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 16px;
}

.cff-home-book-card {
    display: grid;
    grid-template-columns: 112px minmax(0, 1fr);
    gap: 18px;
    min-height: 178px;
    padding: 16px;
    border-radius: 18px;
    background: var(--panel2);
}

.cff-home-book-cover {
    min-height: 146px;
    display: flex;
    flex-direction: column;
    justify-content: center;
    padding: 14px;
    border-radius: 7px 12px 12px 7px;
    color: #fff !important;
    box-shadow: 8px 10px 22px rgba(0,0,0,.24);
    overflow: hidden;
}

.cff-home-book-cover span,
.cff-home-book-cover strong,
.cff-home-book-cover small {
    display: block;
}

.cff-home-book-cover span {
    font-family: var(--mono);
    font-size: .68rem;
    letter-spacing: .12em;
}

.cff-home-book-cover strong {
    margin: 5px 0;
    font-size: 1.12rem;
    line-height: 1;
}

.cff-home-book-cover small {
    font-size: .62rem;
    line-height: 1.3;
    opacity: .82;
}

.cff-home-cover-sql { background: linear-gradient(150deg, #8a3511, #e56a20); }
.cff-home-cover-code { background: linear-gradient(150deg, #171717, #4b5563); }
.cff-home-cover-web { background: linear-gradient(150deg, #075985, #0891b2); }
.cff-home-cover-server { background: linear-gradient(150deg, #1e3a5f, #334155); }

.cff-home-book-details {
    min-width: 0;
}

.cff-home-book-topic {
    color: var(--cyan);
    font-family: var(--mono);
    font-size: .7rem;
}

.cff-home-book-details h3 {
    margin: 8px 0;
    font-size: 1rem;
    line-height: 1.3;
}

.cff-home-book-details h3 a {
    color: var(--text) !important;
    font-size: inherit !important;
}

.cff-home-book-details p {
    margin: 0 0 12px;
    font-size: .78rem;
    line-height: 1.45;
}

.cff-home-book-link {
    color: var(--fire2) !important;
    font-family: var(--mono);
    font-size: .72rem !important;
    font-weight: 700;
}

body.theme-dark .cff-home-book-card {
    background: #0c111c;
}

@media (max-width: 820px) {
    .cff-home-book-grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 560px) {
    .cff-home-books-heading {
        align-items: start;
        flex-direction: column;
    }

    .cff-home-book-card {
        grid-template-columns: 88px minmax(0, 1fr);
    }

    .cff-home-book-cover {
        min-height: 132px;
        padding: 10px;
    }
}