/* Theme: use bi-btn for all primary calls to action. */
:root {
    --bi-primary: #F19300;
    --bi-primary-hover: #d77e00;
    --bi-black: #030303;
    --bi-white: #fff;
    --bi-container: 1340px;
}
*,
*::before,
*::after {
    box-sizing: border-box;
    font-family: "Outfit", sans-serif;
}
body {
    margin: 0;
    color: var(--bi-black);
    background: #fff;
    font-family: "Outfit", sans-serif;
    line-height: 1.5;
}
img {
    display: block;
    max-width: 100%;
}
a {
    color: inherit;
    text-decoration: none;
}
button,
input,
textarea,
select {
    font: inherit;
}
button,
a {
    -webkit-tap-highlight-color: transparent;
}
button {
    cursor: pointer;
}
:focus-visible {
    outline: 3px solid #168ce3;
    outline-offset: 4px;
}
[id] {
    scroll-margin-top: 24px;
}
.bi-container {
    width: min(var(--bi-container), calc(100% - 48px));
    margin-inline: auto;
}
.bi-sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip-path: inset(50%);
    white-space: nowrap;
    border: 0;
}
.bi-skip-link {
    position: absolute;
    top: -100px;
    left: 16px;
    padding: 12px;
    background: #fff;
    z-index: 10;
}
.bi-skip-link:focus {
    top: 8px;
}
.bi-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-height: 44px;
    padding: 12px 30px;
    border: 1px solid transparent;
    border-radius: 4px;
    background: var(--bi-primary);
    color: #fff;
    font-size: 13px;
    font-weight: 600;
    line-height: 1.2;
    text-align: center;
    text-transform: uppercase;
    transition:
        background 0.2s ease,
        transform 0.2s ease;
}
.bi-btn:hover {
    background: var(--bi-primary-hover);
    transform: translateY(-1px);
}
.bi-btn--dark {
    background: #000;
    min-width: 144px;
    min-height: 50px;
}
.bi-btn--dark:hover {
    background: #282828;
}
/* Header */
.bi-topbar {
    background: var(--bi-primary);
    color: #fff;
}
.bi-topbar-inner {
    display: flex;
    justify-content: flex-end;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    min-height: 50px;
    padding-block: 8px;
}
.bi-contact-link {
    display: inline-flex;
    align-items: center;
    gap: 7px;
    font-size: 14px;
}
.bi-contact-icon {
    display: inline-grid;
    place-items: center;
    width: 24px;
    height: 24px;
    border-radius: 3px;
    background: #000;
    font-size: 16px;
}
.bi-header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    min-height: 82px;
}
.bi-logo {
    flex-shrink: 0;
}
.bi-logo-img {
    width: 180px;
    height: 52px;
    object-fit: contain;
}
.bi-nav {
    display: flex;
    align-items: center;
    gap: 26px;
}
.bi-nav-link {
    font-size: 13px;
    white-space: nowrap;
}
.bi-nav-link:hover {
    color: #b96500;
}
.bi-menu-toggle {
    display: none;
}
/* Hero */
.bi-hero-section {
    padding-bottom: 40px;
    background: linear-gradient(#f4f2ef 0 70%, #fff 70%);
}
.bi-hero {
    position: relative;
    isolation: isolate;
    width: min(1320px, calc(100% - 48px));
    margin-inline: auto;
    overflow: hidden;
    border-radius: 0 0 18px 18px;
    background: #160602;
    padding: 70px 56px 60px;
    color: #fff;
}
.bi-hero-background {
    position: absolute;
    z-index: -1;
    inset: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
}
.bi-hero-content {
    text-align: center;
}
.bi-hero-title {
    margin: 0 0 10px;
    font-size: clamp(26px, 3vw, 38px);
    line-height: 1.2;
    font-weight: 750;
    text-transform: uppercase;
}
.bi-hero-title {
    max-width: 700px;
    margin-inline: auto;
}
.bi-hero-description {
    margin: 0 auto;
    max-width: 800px;
    font-size: 17px;
    line-height: 1.5;
    font-weight: 500;
}
.bi-review-logos {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 18px;
    margin: 24px auto 28px;
}
.bi-review-logo {
    width: 518px;
    max-width: 100%;
    height: auto;
}
.bi-lead-form {
    position: relative;
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr)) 1.04fr;
    gap: 16px;
    max-width: 810px;
    margin: 0 auto;
}
.bi-form-input {
    width: 100%;
    min-width: 0;
    min-height: 44px;
    padding: 12px 16px;
    border: 1px solid #b5aaa5;
    border-radius: 3px;
    background: #150803;
    color: #fff;
    font-size: 11px;
}
.bi-form-input::placeholder {
    color: #fff;
    opacity: 1;
}
.bi-lead-form .bi-btn {
    padding-inline: 16px;
}
.bi-form-status {
    grid-column: 1 / -1;
    margin: 0;
    color: #ffe2b0;
    font-size: 13px;
}
.bi-form-status:empty {
    display: none;
}
.bi-noscript {
    font-size: 13px;
}
.bi-books {
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    gap: 16px;
    margin-top: 62px;
}
.bi-book-img {
    width: 100%;
    height: auto;
    aspect-ratio: 270 / 394;
    object-fit: contain;
}
/* Overlapping highlights panel */
.bi-stats {
    position: relative;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    width: min(1100px, calc(100% - 96px));
    margin: -2px auto 0;
    padding: 40px 24px 36px;
    border-radius: 0 0 18px 18px;
    background: #000;
    color: #fff;
}
.bi-stat {
    position: relative;
    padding-inline: 16px;
    text-align: center;
}
.bi-stat + .bi-stat::before {
    position: absolute;
    top: 50%;
    left: -20px;
    content: "";
    width: 40px;
    height: 1px;
    background: linear-gradient(90deg, transparent, #737373, transparent);
}
.bi-stat-icon {
    width: 59px;
    height: 44px;
    object-fit: contain;
    margin: 0 auto 18px;
}
.bi-stat-title {
    margin: 0 0 4px;
    font-size: 14px;
    font-weight: 600;
    line-height: 1.4;
}
.bi-stat-description {
    margin: 0;
    font-size: 12px;
}
/* Contact dialog (replace trigger with your live-chat integration). */
.bi-chat-dialog {
    width: min(440px, calc(100% - 32px));
    border: 1px solid #ddd;
    border-radius: 14px;
    padding: 36px;
}
.bi-chat-dialog::backdrop {
    background: #0009;
}
.bi-dialog-close {
    position: absolute;
    top: 5px;
    right: 12px;
    border: 0;
    background: transparent;
    font-size: 28px;
}
.bi-dialog-title {
    margin: 0 0 12px;
    font-size: 24px;
    line-height: 1.2;
}
.bi-dialog-copy {
    color: #555;
}
.bi-dialog-email {
    display: block;
    margin-top: 16px;
    font-size: 13px;
    overflow-wrap: anywhere;
}
/* Slick classes below are generated by the vendor; custom classes use bi-. */
.bi-slider .slick-slide {
    margin-inline: 8px;
}
.bi-slider-arrow {
    border: 0;
    border-radius: 4px;
    background: var(--bi-primary);
    color: #fff;
    padding: 8px 16px;
}
@media (max-width: 1100px) {
    .bi-header-inner {
        gap: 18px;
    }
    .bi-nav {
        gap: 18px;
    }
    .bi-hero {
        padding: 64px 40px 76px;
    }
    .bi-hero-description {
        font-size: 15px;
    }
    .bi-books {
        gap: 14px;
    }
    .bi-stat-description {
        font-size: 11px;
    }
}
@media (max-width: 800px) {
    .bi-container {
        width: calc(100% - 32px);
    }
    .bi-header-inner {
        flex-wrap: wrap;
        padding-block: 14px;
        gap: 14px;
    }
    .bi-logo-img {
        width: 145px;
        height: 42px;
    }
    .bi-header-actions .bi-btn {
        min-width: auto;
        min-height: 42px;
        padding: 10px 18px;
    }
    .bi-menu-toggle {
        display: inline-flex;
        align-items: center;
        gap: 8px;
        margin-left: auto;
        border: 0;
        padding: 10px;
        background: transparent;
        font-size: 13px;
    }
    .bi-nav {
        display: none;
        order: 4;
        width: 100%;
        flex-wrap: wrap;
        padding-block: 10px;
        gap: 20px;
    }
    .bi-nav.bi-is-open {
        display: flex;
    }
    .bi-topbar-inner {
        justify-content: center;
        min-height: 40px;
        gap: 8px 14px;
    }
    .bi-contact-link {
        font-size: 11px;
    }
    .bi-contact-icon {
        width: 19px;
        height: 19px;
        font-size: 13px;
    }
    .bi-hero {
        width: calc(100% - 24px);
        padding: 48px 24px 60px;
    }
    .bi-desktop-break {
        display: none;
    }
    .bi-lead-form {
        grid-template-columns: repeat(2, minmax(0, 1fr));
    }
    .bi-books {
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 18px;
        margin-top: 40px;
    }
    .bi-stats {
        width: calc(100% - 56px);
        grid-template-columns: repeat(2, minmax(0, 1fr));
        gap: 32px 16px;
        padding: 32px 16px;
    }
    .bi-stat + .bi-stat::before {
        display: none;
    }
}
@media (max-width: 480px) {
    .bi-header-inner {
        gap: 8px;
    }
    .bi-logo-img {
        width: 122px;
    }
    .bi-header-actions .bi-btn {
        font-size: 11px;
        padding-inline: 12px;
    }
    .bi-hero {
        padding: 40px 18px 42px;
    }
    .bi-hero-title {
        font-size: 27px;
    }
    .bi-hero-description {
        font-size: 14px;
    }
    .bi-review-logos {
        gap: 10px;
        flex-wrap: wrap;
    }
    .bi-lead-form {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .bi-form-input {
        min-height: 46px;
        font-size: 12px;
    }
    .bi-books {
        gap: 10px;
    }
    .bi-stats {
        width: calc(100% - 40px);
        padding-inline: 10px;
    }
    .bi-stat {
        padding-inline: 2px;
    }
    .bi-stat-title {
        font-size: 12px;
    }
    .bi-stat-description {
        font-size: 10px;
    }
}
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        transition: none !important;
    }
}

/* Packages: all section widths come from the shared bi-container. */
.bi-packages-section {
    padding: 64px 0 80px;
}
.bi-packages-heading {
    margin-bottom: 100px;
    text-align: center;
    color: #383838;
}
.bi-section-label {
    display: inline-block;
    padding: 7px 18px;
    border: 1px solid #d5d5d5;
    border-radius: 3px;
    color: var(--bi-black);
    font-size: 12px;
}
.bi-packages-heading h2 {
    margin: 26px 0 20px;
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 600;
    line-height: 1.2;
}
.bi-packages-heading p {
    margin: 0;
    font-size: 15px;
    line-height: 1.8;
}
.bi-packages-body {
    position: relative;
    isolation: isolate;
    padding: 38px 44px 0;
}
.bi-packages-body::before {
    position: absolute;
    z-index: -1;
    inset: 0 0 110px;
    border-radius: 20px;
    background: #f4f2ef;
    content: "";
}
.bi-packages-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    align-items: start;
    gap: 24px;
}
.bi-package {
    min-width: 0;
}
.bi-package-summary {
    padding: 28px 24px;
    border: 1px solid #aaa;
    border-radius: 18px;
    background: #fff;
    text-align: center;
}
.bi-package-summary h3 {
    margin: 0;
    font-size: 21px;
    font-weight: 600;
    line-height: 1.35;
}
.bi-package-price {
    margin: 10px 0;
    font-size: clamp(44px, 4vw, 56px);
    font-weight: 600;
    line-height: 1.1;
}
.bi-package-description {
    min-height: 66px;
    margin: 14px 0;
    font-size: 13px;
    font-weight: 500;
    line-height: 1.7;
    text-transform: uppercase;
}
.bi-package-summary .bi-btn {
    width: 100%;
    min-height: 48px;
}
.bi-package-features {
    display: grid;
    gap: 8px;
    margin: 24px 0 0;
    padding: 0 30px;
    list-style: none;
    font-size: 16px;
    line-height: 1.45;
}
.bi-package-features li {
    position: relative;
    padding-left: 28px;
}
.bi-package-features li::before {
    position: absolute;
    top: 5px;
    left: 0;
    display: grid;
    place-items: center;
    width: 15px;
    height: 15px;
    border: 1px solid currentColor;
    border-radius: 50%;
    content: "\2713";
    font-size: 11px;
    line-height: 1;
}
.bi-package--featured {
    position: relative;
    margin-top: -64px;
    padding: 9px 9px 48px;
    border-radius: 20px;
    background: linear-gradient(105deg, #f69b00, #a86800);
    color: #fff;
}
.bi-package--featured .bi-package-summary {
    border-color: #000;
    background: #000;
}
.bi-package--featured .bi-package-features {
    padding-inline: 22px;
}
.bi-package-badge {
    position: absolute;
    top: -7px;
    left: 50%;
    transform: translateX(-50%);
    padding: 7px 20px;
    border-radius: 30px;
    background: #ff0808;
    color: #fff;
    font-size: 12px;
    line-height: 1.3;
    text-transform: uppercase;
    white-space: nowrap;
}
.bi-publishing-cta {
    position: relative;
    isolation: isolate;
    margin-top: 130px;
    padding: 80px 24px;
    border-radius: 8px;
    background: #cc8200;
    color: #fff;
    text-align: center;
}
.bi-publishing-cta::before,
.bi-publishing-cta::after {
    position: absolute;
    z-index: -1;
    inset: -8px 8px 8px -8px;
    border: 1px solid #648280;
    border-radius: 8px;
    content: "";
    pointer-events: none;
}
.bi-publishing-cta::after {
    inset: 8px -8px -8px 8px;
}
.bi-publishing-art {
    position: absolute;
    z-index: -1;
    inset: 0;
    display: grid;
    grid-template-columns: repeat(6, minmax(0, 1fr));
    grid-template-rows: repeat(2, 1fr);
    overflow: hidden;
    border-radius: inherit;
}
.bi-publishing-art::after {
    position: absolute;
    inset: 0;
    background: linear-gradient(90deg, #f49a00dc, #ac6800f5 50%, #f49a00dc);
    content: "";
}
.bi-publishing-art img {
    width: 100%;
    height: 100%;
    min-height: 0;
    object-fit: cover;
}
.bi-publishing-cta h2 {
    margin: 0 0 8px;
    font-size: clamp(24px, 2.5vw, 34px);
    font-weight: 600;
    line-height: 1.25;
    text-transform: uppercase;
}
.bi-publishing-cta p {
    margin: 0 0 18px;
    font-size: 16px;
    font-weight: 500;
    text-transform: uppercase;
}
.bi-publishing-cta .bi-btn {
    min-width: 240px;
    text-transform: none;
}
@media (min-width: 801px) and (max-width: 1100px) {
    .bi-packages-body { padding-inline: 24px; }
    .bi-packages-grid { gap: 18px; }
    .bi-package-summary { padding: 24px 14px; }
    .bi-package-summary h3 { font-size: 18px; min-height: 49px; }
    .bi-package-description { min-height: 100px; }
    .bi-package-features,
    .bi-package--featured .bi-package-features { padding-inline: 10px; font-size: 14px; }
}
@media (max-width: 800px) {
    .bi-packages-section { padding: 40px 0 56px; }
    .bi-packages-heading { margin-bottom: 40px; }
    .bi-packages-heading p { font-size: 14px; }
    .bi-packages-body { padding: 24px 20px 0; }
    .bi-packages-body::before { bottom: 70px; }
    .bi-packages-grid { grid-template-columns: 1fr; gap: 44px; }
    .bi-package--featured { margin-top: 0; padding-bottom: 30px; }
    .bi-package-summary { padding: 28px 20px; }
    .bi-package-description { min-height: 0; }
    .bi-package-features { padding-inline: 20px; font-size: 15px; }
    .bi-publishing-cta { margin-top: 56px; padding: 48px 20px; }
    .bi-publishing-cta p { font-size: 13px; }
    .bi-publishing-cta .bi-btn { min-width: 0; max-width: 100%; }
}

/* Services and research CTA */
.bi-services-section {
    position: relative;
    isolation: isolate;
    padding-bottom: 64px;
    color: #fff;
}
.bi-services-section::before {
    position: absolute;
    z-index: -2;
    inset: 0 0 230px;
    background: #222;
    content: "";
}
.bi-services-section::after {
    position: absolute;
    z-index: -1;
    inset: 230px 0 230px;
    background-image: url("../img/services-pattern.svg");
    background-position: left center, right center;
    background-repeat: repeat-x;
    opacity: .45;
    pointer-events: none;
    content: "";
}
.bi-genres {
    overflow-x: auto;
    padding: 16px 24px;
    background: linear-gradient(100deg, #f39800, #aa6900);
    scrollbar-width: thin;
}
.bi-genres-list {
    display: flex;
    justify-content: center;
    gap: 8px;
    width: max-content;
    min-width: 100%;
    margin: 0;
    padding: 0;
    list-style: none;
}
.bi-genres-list li {
    flex: 0 0 auto;
    padding: 9px 24px;
    border-radius: 3px;
    background: #fff;
    color: #15342b;
    transition: background-color .2s ease, color .2s ease;
    font-size: 13px;
    font-weight: 600;
    text-transform: uppercase;
}
.bi-genres-list li:hover {
    background: #000;
    color: #fff;
}
.bi-services-heading {
    padding-top: 110px;
    margin-bottom: 42px;
    text-align: center;
}
.bi-services-heading .bi-section-label {
    border-color: #555;
    color: #fff;
}
.bi-services-heading h2 {
    margin: 26px 0 22px;
    font-size: clamp(28px, 3vw, 40px);
    font-weight: 600;
    line-height: 1.2;
}
.bi-services-heading p {
    margin: 0;
    font-size: 15px;
    line-height: 1.8;
}
.bi-services-grid {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 24px;
}
.bi-service-card {
    padding: 46px 24px;
    border: 1px solid #d7e9e2;
    border-radius: 20px;
    background: #fff;
    color: #111;
    text-align: center;
}
.bi-service-card--featured {
    border-color: transparent;
    background: linear-gradient(110deg, #f39800, #a96800);
    color: #fff;
}
.bi-service-icon {
    display: grid;
    place-items: center;
    width: 76px;
    height: 76px;
    margin: 0 auto 32px;
    border-radius: 4px;
    background: linear-gradient(110deg, #f39800, #a96800);
    color: #fff;
}
.bi-service-icon svg { width: 48px; height: 48px; }
.bi-service-card--featured .bi-service-icon { background: #fff; color: #444; }
.bi-service-card h3 {
    margin: 0 0 12px;
    font-size: 21px;
    font-weight: 600;
    line-height: 1.3;
    text-transform: uppercase;
}
.bi-service-card p { margin: 0 0 22px; font-size: 16px; line-height: 1.6; }
.bi-service-card .bi-btn { min-height: 44px; min-width: 144px; font-size: 12px; }
.bi-btn--light { background: #fff; color: #bc7100; }
.bi-btn--light:hover { background: #fff1db; }
.bi-research-banner {
    position: relative;
    margin-top: 130px;
    padding: 28px;
    border-radius: 18px;
    background: #140d03 url("../img/hero-bg.webp") center / cover;
}
.bi-research-banner-inner {
    position: relative;
    display: grid;
    grid-template-columns: 1.55fr 1fr;
    gap: 44px;
    align-items: center;
    padding: 42px 70px;
    border-radius: 20px;
    background: #d38400 url("../img/cta-bg.webp") center / cover no-repeat;
}
.bi-research-copy h2 {
    margin: 0 0 26px;
    font-size: clamp(25px, 2.5vw, 36px);
    font-weight: 600;
    line-height: 1.25;
    text-transform: uppercase;
}
.bi-research-reviews { width: 440px; height: auto; margin-bottom: 30px; }
.bi-research-actions { display: flex; flex-wrap: wrap; gap: 18px; }
.bi-research-actions .bi-btn { min-height: 50px; }
.bi-research-books {
    margin-block: -96px;
}

.bi-research-books img { width: 100%; height: auto; filter: drop-shadow(0 14px 10px #0006); }

@media (max-width: 1100px) {
    .bi-services-grid { gap: 18px; }
    .bi-service-card { padding: 32px 18px; }
    .bi-service-card h3 { font-size: 18px; }
    .bi-service-card p { font-size: 14px; }
    .bi-research-banner-inner { padding: 38px; gap: 28px; }
    .bi-research-books { margin-block: -60px; }
}
@media (max-width: 800px) {
    .bi-services-section { padding-bottom: 40px; }
    .bi-services-section::before { bottom: 160px; }
    .bi-services-heading { padding-top: 56px; margin-bottom: 32px; }
    .bi-services-heading p { font-size: 14px; }
    .bi-services-grid { grid-template-columns: 1fr; gap: 20px; }
    .bi-service-card { padding: 34px 24px; }
    .bi-service-card h3 { font-size: 21px; }
    .bi-service-icon { margin-bottom: 24px; }
    .bi-genres { padding: 12px 16px; }
    .bi-genres-list { gap: 8px; }
    .bi-genres-list li { padding: 8px 18px; font-size: 12px; }
    .bi-research-banner { margin-top: 56px; padding: 14px; }
    .bi-research-banner-inner { grid-template-columns: 1fr; padding: 32px 24px; gap: 32px; }
    .bi-research-copy { text-align: center; }
    .bi-research-reviews { margin-inline: auto; }
    .bi-research-actions { justify-content: center; gap: 12px; }
    .bi-research-books { width: min(100%, 360px); margin: 0 auto; }

}

/* Full-width continuous genre strip; equal tracks make the loop seamless. */
.bi-genres { position: relative; overflow: hidden; padding-inline: 0; }
.bi-genres-track { display: flex; width: max-content; animation: bi-genres-scroll 38s linear infinite; }
.bi-genres-list { flex: 0 0 auto; justify-content: flex-start; min-width: 0; padding-right: 8px; }
.bi-genres:hover .bi-genres-track,
.bi-genres:focus .bi-genres-track,
.bi-genres.bi-is-paused .bi-genres-track { animation-play-state: paused; }
.bi-genres-toggle { display: none; }
@keyframes bi-genres-scroll { to { transform: translateX(-50%); } }
/* Shared interaction treatment for the current and future sections. */
.bi-btn { position: relative; overflow: hidden; transition: background .25s ease, transform .25s ease, box-shadow .25s ease; }
.bi-btn::after { position: absolute; inset: -50% auto -50% -60%; width: 35%; background: linear-gradient(90deg, transparent, #ffffff40, transparent); transform: skewX(-20deg); transition: left .55s ease; content: ""; pointer-events: none; }
.bi-btn:focus-visible::after { left: 130%; }
.bi-btn:active { transform: translateY(1px); }
.bi-service-card,
.bi-package-summary { transition: transform .3s ease, box-shadow .3s ease, border-color .3s ease; }
.bi-service-icon,
.bi-book-img,
.bi-research-books img,
.bi-stat-icon { transition: transform .35s ease, filter .35s ease; }
.bi-nav-link { position: relative; padding-block: 5px; }
.bi-nav-link::after { position: absolute; inset: auto 0 0; height: 2px; background: var(--bi-primary); transform: scaleX(0); transform-origin: left; transition: transform .25s ease; content: ""; }
.bi-nav-link:focus-visible::after { transform: scaleX(1); }
.bi-form-input { transition: border-color .25s ease, box-shadow .25s ease; }
.bi-form-input:focus { border-color: var(--bi-primary); box-shadow: 0 0 0 3px #f1930026; }
.bi-service-card:focus-within,
.bi-package:focus-within .bi-package-summary { box-shadow: 0 16px 35px #0002; border-color: var(--bi-primary); }
@media (hover: hover) and (pointer: fine) {
    .bi-btn:hover { transform: translateY(-3px); box-shadow: 0 8px 20px #0003; }
    .bi-btn:hover::after { left: 130%; }
    .bi-service-card:hover { transform: translateY(-8px); box-shadow: 0 20px 40px #0003; border-color: var(--bi-primary); }
    .bi-service-card:hover .bi-service-icon { transform: rotate(-5deg) scale(1.06); }
    .bi-package:hover .bi-package-summary { transform: translateY(-5px); box-shadow: 0 15px 30px #0002; border-color: var(--bi-primary); }
    .bi-book-img:hover { transform: translateY(-8px) rotate(-2deg); filter: drop-shadow(0 12px 8px #0005); }
    .bi-research-banner:hover .bi-research-books img { transform: translateY(-6px); }
    .bi-stat:hover .bi-stat-icon { transform: translateY(-4px); }
    .bi-nav-link:hover::after { transform: scaleX(1); }
}
@media (max-width: 800px) {
    .bi-genres { padding-inline: 0; }
    .bi-genres-list { padding-right: 8px; }
}
@media (prefers-reduced-motion: reduce) {
    .bi-genres { overflow-x: auto; }
    .bi-genres-track { animation: none; }
    .bi-genres-list[aria-hidden="true"], .bi-genres-toggle { display: none; }
    .bi-service-card:hover, .bi-package:hover .bi-package-summary,
    .bi-book-img:hover, .bi-research-banner:hover .bi-research-books img,
    .bi-stat:hover .bi-stat-icon, .bi-service-card:hover .bi-service-icon,
    .bi-btn:hover, .bi-btn:active { transform: none; }
    .bi-btn::after { display: none; }
}

/* Portfolio continues the dark backdrop underneath the research CTA. */
.bi-portfolio-section { margin-top: -230px; padding-bottom: 64px; }
.bi-portfolio-panel { padding: 260px 44px 64px; background: #000; color: #fff; border-radius: 0 0 20px 20px; }
.bi-portfolio-heading { display: flex; align-items: flex-end; justify-content: space-between; gap: 24px; margin-bottom: 38px; }
.bi-portfolio-heading .bi-section-label { color: #fff; border-color: #777; }
.bi-portfolio-heading h2 { margin: 26px 0 20px; font-size: clamp(28px, 3vw, 40px); font-weight: 600; line-height: 1.25; }
.bi-portfolio-heading p { margin: 0; font-size: 15px; line-height: 1.8; }
.bi-portfolio-controls { display: flex; gap: 12px; padding-bottom: 14px; }
.bi-portfolio-arrow { display: grid; place-items: center; flex-shrink: 0; width: 36px; height: 36px; padding: 0; border: 1px solid var(--bi-primary); border-radius: 50%; background: transparent; color: var(--bi-primary); font-size: 26px; line-height: 1; transition: background .25s ease, color .25s ease, transform .25s ease; }
.bi-portfolio-arrow:hover { background: var(--bi-primary); color: #000; transform: scale(1.1); }
.bi-portfolio-track { display: flex; gap: 22px; overflow-x: auto; scroll-snap-type: x mandatory; scrollbar-width: none; padding-block: 10px; }
.bi-portfolio-track.bi-is-sliding { overflow-x: hidden; scroll-snap-type: none; overflow-anchor: none; }
.bi-portfolio-track::-webkit-scrollbar { display: none; }
.bi-portfolio-column { flex: 0 0 calc((100% - 110px) / 6); display: grid; gap: 22px; scroll-snap-align: start; }
.bi-portfolio-book { margin: 0; border-radius: 7px; overflow: hidden; background: #202020; }
.bi-portfolio-book img { width: 100%; height: auto; aspect-ratio: 270 / 420; object-fit: contain; transition: transform .35s ease, filter .35s ease; }
@media (hover: hover) and (pointer: fine) {
    .bi-portfolio-book:hover img { transform: scale(1.04); filter: brightness(1.1); }
}
@media (max-width: 1100px) {
    .bi-portfolio-column { flex-basis: calc((100% - 66px) / 4); }
}
@media (max-width: 800px) {
    .bi-portfolio-section { margin-top: -160px; padding-bottom: 40px; }
    .bi-portfolio-panel { padding: 190px 20px 36px; }
    .bi-portfolio-heading { align-items: flex-start; flex-direction: column; gap: 18px; margin-bottom: 18px; }
    .bi-portfolio-heading p { font-size: 14px; }
    .bi-portfolio-controls { align-self: flex-end; padding: 0; }
    .bi-portfolio-track { gap: 16px; }
    .bi-portfolio-column { flex-basis: calc((100% - 32px) / 3); gap: 16px; }
}
@media (max-width: 480px) {
    .bi-portfolio-column { flex-basis: calc((100% - 16px) / 2); }
}
@media (prefers-reduced-motion: reduce) {
    .bi-portfolio-book:hover img, .bi-portfolio-arrow:hover { transform: none; }
}

/* Publishing steps and platform logos */
.bi-steps-section { padding: 16px 0 100px; }
.bi-steps-section h2, .bi-platforms-section h2 { margin: 0; text-align: center; font-size: clamp(28px, 3vw, 40px); font-weight: 600; line-height: 1.25; }
.bi-steps-grid { display: grid; grid-template-columns: repeat(4, minmax(0, 1fr)); gap: 24px; margin: 74px 0 0; padding: 0; list-style: none; }
.bi-step-card { position: relative; padding: 58px 30px 44px; border-radius: 10px; background: #f4f3f8; }
.bi-step-icon { position: absolute; top: -28px; left: 30px; display: grid; place-items: center; width: 58px; height: 58px; border-radius: 50%; background: var(--bi-primary); }
.bi-step-icon img { width: 29px; height: 30px; object-fit: contain; }
.bi-step-number { position: absolute; bottom: -6px; left: 0; display: grid; place-items: center; width: 19px; height: 19px; border-radius: 50%; background: #303030; color: #fff; font-size: 11px; line-height: 1; }
.bi-step-card h3 { margin: 0 0 10px; font-size: 19px; font-weight: 600; line-height: 1.3; }
.bi-step-card p { margin: 0; font-size: 15px; line-height: 1.35; }
.bi-platforms-section { padding: 90px 0; color: #fff; background: #030303 url("../img/platforms-pattern.svg") center / cover no-repeat; }
.bi-platforms-description { margin: 10px 0 34px; text-align: center; font-size: 16px; }
.bi-platforms-stats { display: flex; width: fit-content; max-width: 100%; margin: 0 auto 48px; padding: 5px; border-radius: 5px; background: var(--bi-primary); font-size: 16px; font-weight: 500; text-align: center; }
.bi-platforms-stats span { padding: 6px 36px; }
.bi-platforms-stats span + span { border-radius: 4px; background: #a76700; }
.bi-platforms-grid { display: grid; grid-template-columns: repeat(6, minmax(0, 1fr)); gap: 24px; margin: 0; padding: 0; list-style: none; }
.bi-platforms-grid img { width: 100%; height: auto; }
@media (max-width: 1100px) {
    .bi-step-card { padding: 48px 20px 32px; }
    .bi-step-icon { left: 20px; }
    .bi-step-card h3 { font-size: 17px; }
    .bi-step-card p { font-size: 14px; }
    .bi-platforms-grid { gap: 18px; }
}
@media (max-width: 800px) {
    .bi-steps-section { padding: 16px 0 64px; }
    .bi-steps-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 50px 20px; margin-top: 60px; }
    .bi-platforms-section { padding: 60px 0; }
    .bi-platforms-description { font-size: 14px; }
    .bi-platforms-grid { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 16px; }
    .bi-platforms-stats { font-size: 13px; margin-bottom: 32px; }
    .bi-platforms-stats span { padding: 8px 18px; }
}
@media (max-width: 480px) {
    .bi-steps-grid { grid-template-columns: 1fr; }
    .bi-step-card { padding: 48px 24px 30px; }
    .bi-platforms-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 14px; }
    .bi-platforms-stats span { padding-inline: 12px; }
}

/* Platform flip cards: hover, keyboard focus, and tap. */
.bi-platform-item { min-width: 0; perspective: 1000px; }
.bi-platform-card { display: block; width: 100%; padding: 0; border: 0; border-radius: 10px; background: transparent; color: #fff; perspective: 1000px; }
.bi-platform-inner { position: relative; display: block; aspect-ratio: 203 / 168; transform-style: preserve-3d; transition: transform .65s cubic-bezier(.2,.7,.2,1); }
.bi-platform-front, .bi-platform-back { position: absolute; inset: 0; display: grid; place-items: center; border-radius: 10px; backface-visibility: hidden; -webkit-backface-visibility: hidden; }
.bi-platform-front { transform: rotateY(0deg); }
.bi-platform-back { padding: 16px; background: var(--bi-primary); color: var(--bi-black); transform: rotateY(180deg); font-size: clamp(16px, 1.8vw, 26px); font-weight: 600; line-height: 1.25; text-align: center; overflow-wrap: anywhere; box-shadow: 0 12px 30px #f1930026; }
.bi-platform-card:focus-visible .bi-platform-inner,
.bi-platform-card[aria-pressed="true"] .bi-platform-inner { transform: rotateY(180deg); }
.bi-step-card { transition: transform .3s ease, box-shadow .3s ease, background .3s ease; }
.bi-step-icon { transition: transform .3s ease, box-shadow .3s ease; }
@media (hover: hover) and (pointer: fine) {
    .bi-platform-card:hover .bi-platform-inner { transform: rotateY(180deg); }
    .bi-step-card:hover { transform: translateY(-8px); background: #fff7e9; box-shadow: 0 16px 36px #00000012; }
    .bi-step-card:hover .bi-step-icon { transform: translateY(-3px) rotate(-8deg); box-shadow: 0 8px 20px #f1930040; }
}
@media (prefers-reduced-motion: reduce) {
    .bi-platform-inner { transition: none; }
    .bi-step-card:hover, .bi-step-card:hover .bi-step-icon { transform: none; }
}

/* Testimonials and publication request */
.bi-testimonials-section { padding: 76px 0 160px; background: linear-gradient(#f4f3f8 0 67%, #fff 67%); }
.bi-testimonials-layout { display: grid; grid-template-columns: 1.25fr 1fr; align-items: start; gap: 56px 100px; }
.bi-testimonial-copy h2 { margin: 0 0 14px; font-size: clamp(26px, 2.4vw, 36px); font-weight: 600; line-height: 1.25; }
.bi-testimonial-rating { display: flex; align-items: center; gap: 18px; color: var(--bi-primary); font-size: 23px; letter-spacing: 2px; }
.bi-testimonial-rating::after { content: ''; height: 2px; background: #b9b8bb; flex: 1; }
.bi-half-star { background: linear-gradient(90deg, var(--bi-primary) 50%, #747474 50%); background-clip: text; -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.bi-testimonial-copy { min-width: 0; }
.bi-testimonial-viewport { overflow: hidden; margin-top: 24px; }
.bi-testimonial-track { display: flex; align-items: flex-start; transition: transform .45s ease-in-out; }
.bi-testimonial { flex: 0 0 100%; min-width: 0; margin: 0; }
@media (prefers-reduced-motion: reduce) { .bi-testimonial-track { transition: none; } }
.bi-testimonial blockquote { margin: 0; color: #555; font-size: 16px; line-height: 1.6; }
.bi-testimonial figcaption { margin-top: 28px; color: #ce7a00; font-size: 18px; }
.bi-testimonial-bottom { display: flex; align-items: flex-end; gap: 20px; }
.bi-testimonial-controls { display: flex; gap: 20px; }
.bi-testimonial-controls button { display: grid; place-items: center; width: 44px; height: 44px; padding: 0; border: 1px solid var(--bi-primary); border-radius: 50%; background: transparent; color: var(--bi-primary); cursor: pointer; transition: background .2s ease, color .2s ease; }
.bi-testimonial-controls button:hover:not(:disabled) { background: var(--bi-primary); color: #fff; }
.bi-testimonial-controls button:focus-visible { outline: 2px solid var(--bi-primary); outline-offset: 4px; }
.bi-testimonial-controls button svg { display: block; flex-shrink: 0; }
.bi-testimonial-controls button:disabled { cursor: default; opacity: .45; }
.bi-testimonial-line { height: 1px; flex: 1; background: #999; margin-bottom: 22px; }
.bi-testimonial-bottom img { width: 96px; height: auto; }
.bi-request-card { position: relative; grid-column: 2; grid-row: 1 / 3; background: #fff; border-radius: 24px 24px 0 0; box-shadow: 0 0 24px #00000012; transition: box-shadow .3s ease, transform .3s ease; }
.bi-request-body { position: relative; padding: 40px 46px 48px; }
.bi-request-body::before, .bi-request-body::after { content: ''; position: absolute; top: 10px; width: 26px; height: 26px; background: var(--bi-primary); }
.bi-request-body::before { left: 10px; border-radius: 18px 0 0; }
.bi-request-body::after { right: 10px; border-radius: 0 18px 0 0; }
.bi-request-body h2 { margin: 0 0 8px; font-size: 28px; text-transform: uppercase; text-align: center; line-height: 1.3; }
.bi-request-logo { width: 220px; height: auto; margin: 0 auto 30px; }
.bi-request-form { display: grid; gap: 8px; }
.bi-request-form input, .bi-request-form textarea { width: 100%; min-width: 0; padding: 12px 14px; border: 1px solid #bdbdbd; border-radius: 3px; background: #f8f8f8; color: #222; font-size: 13px; transition: border-color .2s ease, box-shadow .2s ease; }
.bi-request-form textarea { resize: vertical; min-height: 138px; }
.bi-request-form input:focus, .bi-request-form textarea:focus { border-color: var(--bi-primary); box-shadow: 0 0 0 3px #f1930026; outline: none; }
.bi-request-form .bi-btn { margin-top: 8px; text-transform: none; min-height: 50px; }
.bi-request-form .bi-form-status { color: #805000; }
.bi-request-trust { position: relative; display: flex; align-items: center; justify-content: center; flex-wrap: wrap; gap: 8px; min-height: 62px; padding: 12px 26px; background: linear-gradient(135deg, #fff 9%, #f0f0f0 9% 92%, #fff 92%); color: #123b3d; font-size: 16px; }
.bi-request-trust::after { content: ''; position: absolute; bottom: 0; right: 9%; width: 26px; height: 25px; background: var(--bi-primary); transform: skewX(-45deg); }
.bi-trust-stars { color: var(--bi-primary); letter-spacing: 1px; font-size: 22px; }
.bi-media-logos { grid-column: 1; align-self: start; padding-top: 28px; }
.bi-media-logos img { width: 100%; height: auto; }
/* Footer artwork stays decorative; content uses a native footer landmark. */
.bi-footer { position: relative; isolation: isolate; margin-top: 50px; padding: 0 0 36px; background: #030303; color: #fff; }
.bi-footer-backdrop { position: absolute; z-index: -1; inset: 0; display: grid; grid-template-columns: repeat(6, 1fr); overflow: hidden; }
.bi-footer-backdrop::after { content: ''; position: absolute; inset: 0; background: #000e; }
.bi-footer-backdrop img { width: 100%; height: 100%; min-height: 0; object-fit: cover; filter: blur(6px); }
.bi-impact-banner { position: relative; display: flex; align-items: center; justify-content: space-between; gap: 32px; min-height: 230px; padding: 54px 76px; border-radius: 20px; background: var(--bi-primary) url('../img/make-an-impact-bg.png') center / cover no-repeat; transform: translateY(-76px); margin-bottom: -76px; }
.bi-impact-banner h2 { margin: 0; font-size: clamp(24px, 2.4vw, 36px); line-height: 1.3; font-weight: 500; text-transform: uppercase; }
.bi-impact-actions { display: flex; flex-shrink: 0; gap: 20px; }
.bi-impact-actions .bi-btn { min-height: 48px; padding-inline: 30px; font-size: 12px; }
.bi-money-back { position: absolute; right: -54px; top: -64px; width: 190px; height: auto; transition: transform .4s ease; }
.bi-footer-columns { display: grid; grid-template-columns: 1.65fr 1fr 1fr; gap: 80px; padding: 88px 0 110px; }
.bi-footer-logo { width: 210px; height: auto; }
.bi-footer-brand p { margin: 30px 0; font-size: 15px; }
.bi-footer-contact { display: flex; align-items: center; gap: 12px; width: fit-content; margin-top: 14px; font-size: 13px; overflow-wrap: anywhere; }
.bi-footer-contact span { font-size: 23px; line-height: 1; }
.bi-footer-nav h2 { margin: 0 0 14px; font-size: 17px; font-weight: 500; text-transform: uppercase; }
.bi-footer-nav ul { display: grid; gap: 8px; margin: 0; padding-left: 22px; font-size: 16px; }
.bi-footer-nav a, .bi-footer-contact { transition: color .2s ease, transform .2s ease; }
.bi-footer-nav a { display: inline-block; }
.bi-footer-nav a:hover, .bi-footer-contact:hover { color: var(--bi-primary); transform: translateX(4px); }
.bi-footer-nav a:focus-visible, .bi-footer-contact:focus-visible { color: var(--bi-primary); }
.bi-footer-bottom { overflow: hidden; border-radius: 18px; background: #a96700; }
.bi-footer-assurances { display: flex; align-items: center; justify-content: space-between; gap: 60px; padding: 22px 76px; }
.bi-footer-reviews { width: 46%; height: auto; }
.bi-footer-payments { width: 42%; }
.bi-footer-payments p { margin: 0 0 14px; font-size: 17px; text-transform: uppercase; }
.bi-footer-payments p span { margin-right: 8px; }
.bi-footer-payments img { width: 100%; height: auto; }
.bi-copyright { margin: 0; padding: 10px 16px; background: var(--bi-primary); font-size: 13px; text-align: center; }
.bi-footer-brand p {
    max-width: 365px;
}
.bi-testimonial blockquote {
    max-width: 85%;
    font-size: 18px;
}

.bi-testimonial figcaption {
    font-size: 22px;
    font-weight: 700;
}
.mega-package {
    margin-top: 40px;
    display: flex;
    align-items: start;
    padding: 30px;
    background-color: #222222;
    border-radius: 20px;
}

.mega-package .bi-package-features {
    color: #fff;
    margin-top: 0;
    margin-bottom: 0;
}

.mega-package .bi-package-summary {
    position: sticky;
    top: 250px;
}
@media (hover: hover) and (pointer: fine) {
    .bi-request-card:hover { box-shadow: 0 16px 40px #00000020; transform: translateY(-4px); }
    .bi-impact-banner:hover .bi-money-back { transform: rotate(8deg) scale(1.04); }
}
@media (max-width: 1200px) {
    .bi-testimonials-layout { gap: 44px 60px; }
    .bi-request-body { padding-inline: 32px; }
    .bi-impact-banner { padding: 48px 36px; }
    .bi-impact-actions { gap: 12px; }
    .bi-impact-actions .bi-btn { padding-inline: 20px; min-width: 120px; }
    .bi-money-back { width: 145px; right: -10px; top: -64px; }
    .bi-footer-columns { gap: 40px; }
    .bi-footer-assurances { padding-inline: 36px; }
}
@media (max-width: 800px) {
    .bi-testimonials-section { padding: 56px 0 110px; background: #f4f3f8; }
    .bi-testimonials-layout { grid-template-columns: 1fr; gap: 40px; }
    .bi-testimonial-copy { max-width: 600px; margin-inline: auto; }
    .bi-testimonial blockquote { font-size: 15px; }
    .bi-testimonial-bottom img { width: 76px; }
    .bi-request-card { grid-column: 1; grid-row: auto; width: min(100%, 480px); margin-inline: auto; }
    .bi-media-logos { grid-row: 2; padding: 0; }
    .bi-request-body h2 { font-size: 26px; }
    .bi-impact-banner { flex-direction: column; align-items: flex-start; gap: 24px; padding: 54px 28px 32px; transform: translateY(-50px); margin-bottom: -50px; }
    .bi-money-back { width: 110px; top: -62px; right: 8px; }
    .bi-footer { margin-top: 0; padding-bottom: 24px; }
    .bi-footer-columns { grid-template-columns: repeat(2, minmax(0, 1fr)); padding: 56px 0; gap: 36px 24px; }
    .bi-footer-brand { grid-column: 1 / -1; }
    .bi-footer-brand p { margin-block: 20px; }
    .bi-footer-nav ul { font-size: 14px; }
    .bi-footer-assurances { flex-direction: column; gap: 26px; padding: 28px 24px; }
    .bi-footer-reviews, .bi-footer-payments { width: min(100%, 420px); }
    .bi-footer-payments p { text-align: center; font-size: 15px; }
    .bi-copyright { font-size: 11px; }
}
@media (max-width: 480px) {
    .bi-request-body { padding: 40px 22px 30px; }
    .bi-request-trust { font-size: 13px; }
    .bi-impact-banner h2 { font-size: 24px; }
    .bi-impact-actions { flex-wrap: wrap; }
    .bi-impact-actions .bi-btn { padding-inline: 18px; }
    .bi-footer-columns { gap: 32px 18px; }
}
@media (prefers-reduced-motion: reduce) {
    .bi-request-card:hover, .bi-impact-banner:hover .bi-money-back,
    .bi-footer-nav a:hover, .bi-footer-contact:hover { transform: none; }
}

.bi-impact-actions {
    margin-right: 80px;
    margin-top: 20px;
}
/* Package-aware enquiry modal */
html.bi-enquiry-open, html.bi-enquiry-open body { overflow: hidden; }
.bi-enquiry-modal { width: min(920px, calc(100% - 32px)); max-height: calc(100dvh - 40px); margin: auto; padding: 0; border: 0; border-radius: 22px; background: #fff; color: var(--bi-black); box-shadow: 0 30px 100px #0005; overflow: auto; overscroll-behavior: contain; }
.bi-enquiry-modal::backdrop { background: #111119b8; backdrop-filter: blur(7px); }
.bi-enquiry-modal[open] { animation: bi-modal-enter .3s ease-out; }
.bi-enquiry-layout { display: grid; grid-template-columns: .85fr 1.15fr; }
.bi-enquiry-close { position: absolute; right: 14px; top: 14px; z-index: 1; display: grid; place-items: center; width: 38px; height: 38px; padding: 0; border: 1px solid #e7e4de; border-radius: 50%; background: #fff; color: #222; }
.bi-enquiry-close:hover { background: #fff3dc; border-color: var(--bi-primary); }
.bi-enquiry-summary { padding: 44px 32px 32px; background: radial-gradient(circle at 0 0, #ffc45b, transparent 65%), var(--bi-primary); display: flex; flex-direction: column; }
.bi-enquiry-eyebrow { font-size: 10px; font-weight: 700; letter-spacing: 1.8px; }
.bi-enquiry-summary h2 { font-size: clamp(28px, 3vw, 38px); line-height: 1.12; letter-spacing: -1px; margin: 26px 0 16px; }
.bi-enquiry-summary > p { margin: 0; font-size: 14px; line-height: 1.65; color: #34250c; }
.bi-enquiry-package { margin: 28px 0; padding: 22px; border: 1px solid #ffffff70; border-radius: 14px; background: #ffffffdf; }
.bi-enquiry-selection-label { font-size: 10px; text-transform: uppercase; letter-spacing: 1.5px; color: #705321; font-weight: 600; }
.bi-enquiry-package h3 { font-size: 19px; line-height: 1.3; margin: 10px 0; }
.bi-enquiry-price { font-size: 42px; line-height: 1.2; letter-spacing: -1.5px; }
.bi-enquiry-package-note { font-size: 12px; line-height: 1.6; color: #625a4e; margin: 10px 0 0; }
.bi-enquiry-contact { margin-top: auto; display: grid; gap: 4px; }
.bi-enquiry-contact > span { font-size: 12px; }
.bi-enquiry-contact a { font-size: 20px; font-weight: 600; }
.bi-enquiry-body { padding: 44px 36px 28px; }
.bi-enquiry-body > h3 { font-size: 26px; line-height: 1.25; letter-spacing: -.5px; margin: 12px 0 10px; }
.bi-enquiry-body > p { color: #777; font-size: 13px; margin: 0 0 24px; }
.bi-enquiry-fields { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; }
.bi-enquiry-fields > div { min-width: 0; }
.bi-enquiry-wide { grid-column: 1 / -1; }
.bi-enquiry-form label { display: block; font-size: 12px; font-weight: 500; margin-bottom: 7px; }
.bi-enquiry-form label span { color: #ad6000; }
.bi-enquiry-form label small { font-weight: 400; color: #888; }
.bi-enquiry-form input:not([type="hidden"]), .bi-enquiry-form textarea { width: 100%; border: 1px solid #e5e2dd; border-radius: 8px; background: #faf9f7; padding: 12px 13px; font-size: 14px; color: #222; }
.bi-enquiry-form textarea { resize: vertical; min-height: 86px; }
.bi-enquiry-form input:focus, .bi-enquiry-form textarea:focus { background: #fff; border-color: var(--bi-primary); outline: 2px solid #f1930030; outline-offset: 1px; }
.bi-enquiry-submit { width: 100%; margin-top: 20px; justify-content: space-between; border-radius: 8px; }
.bi-enquiry-submit span { font-size: 20px; }
.bi-enquiry-helper { font-size: 11px; line-height: 1.6; color: #777; margin: 12px 0 0; }
.bi-enquiry-helper a { text-decoration: underline; }
.bi-enquiry-form .bi-form-status { margin: 10px 0 0; color: #78500b; font-size: 12px; }
@keyframes bi-modal-enter { from { opacity: 0; transform: translateY(18px) scale(.98); } to { opacity: 1; transform: translateY(0) scale(1); } }
@media (max-width: 680px) {
    .bi-enquiry-modal { width: calc(100% - 24px); max-height: calc(100dvh - 24px); border-radius: 16px; }
    .bi-enquiry-layout { grid-template-columns: 1fr; }
    .bi-enquiry-summary { padding: 30px 24px 22px; }
    .bi-enquiry-eyebrow { padding-right: 28px; font-size: 9px; }
    .bi-enquiry-summary h2 { font-size: 28px; margin: 16px 0 10px; }
    .bi-enquiry-package { margin: 18px 0 0; padding: 16px; }
    .bi-enquiry-price { font-size: 32px; }
    .bi-enquiry-contact { display: none; }
    .bi-enquiry-body { padding: 26px 24px; }
    .bi-enquiry-body > h3 { font-size: 24px; }
    .bi-enquiry-fields { grid-template-columns: 1fr; }
    .bi-enquiry-form input:not([type="hidden"]), .bi-enquiry-form textarea { font-size: 16px; }
    .mega-package {
    flex-direction: column;
    padding: 10px 10px 40px;
}

.mega-package .bi-package-summary {
    position: relative;
    top: 0;
    margin-bottom: 30px;
}
}
@media (prefers-reduced-motion: reduce) { .bi-enquiry-modal[open] { animation: none; } }

/* Responsive refinements: keep intrinsic grid sizes and CTA widths within the viewport. */
.bi-enquiry-package[hidden] { display: none; }
.bi-enquiry-layout > *, .bi-testimonials-layout > *, .bi-footer-columns > *,
.bi-research-banner-inner > *, .bi-portfolio-heading > * { min-width: 0; }
.bi-enquiry-helper, .bi-form-status, .bi-footer-contact { overflow-wrap: anywhere; }
.bi-enquiry-close { width: 44px; height: 44px; }

@media (min-width: 801px) and (max-width: 1024px) {
    .bi-header-inner { flex-wrap: wrap; gap: 14px; padding-block: 14px; }
    .bi-menu-toggle { display: inline-flex; align-items: center; gap: 8px; margin-left: auto; min-height: 44px; padding: 10px; border: 0; background: transparent; }
    .bi-nav { display: none; order: 4; width: 100%; flex-wrap: wrap; gap: 12px 24px; }
    .bi-nav.bi-is-open { display: flex; }
    .bi-nav-link { padding-block: 12px; }
    .bi-steps-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 50px 24px; }
    .bi-testimonials-layout { grid-template-columns: minmax(0, 1fr) minmax(0, 1fr); gap: 32px; }
    .bi-request-body { padding-inline: 24px; }
    .bi-impact-banner { flex-wrap: wrap; padding-right: 120px; }
    .bi-impact-actions { margin: 0; flex-wrap: wrap; }
    .bi-footer-columns { grid-template-columns: 1.2fr 1fr 1fr; gap: 24px; }
}
@media (max-width: 800px) {
    .bi-header-inner { display: grid; grid-template-columns: minmax(0, 1fr) auto auto; gap: 8px; }
    .bi-logo { min-width: 0; }
    .bi-logo-img { max-width: 100%; }
    .bi-menu-toggle { margin: 0; min-height: 44px; padding-inline: 8px; }
    .bi-header-actions .bi-btn { min-height: 44px; }
    .bi-nav { grid-column: 1 / -1; gap: 4px; padding: 8px 0 0; border-top: 1px solid #eee; }
    .bi-nav.bi-is-open { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); }
    .bi-nav-link { display: flex; align-items: center; min-height: 44px; padding: 10px 12px; border-radius: 4px; background: #faf8f4; }
    .bi-topbar-inner { gap: 6px 14px; }
    .bi-contact-link { min-width: 0; overflow-wrap: anywhere; }
    .bi-contact-icon { flex-shrink: 0; }
    .bi-form-input, .bi-request-form input, .bi-request-form textarea,
    .bi-enquiry-form input:not([type="hidden"]), .bi-enquiry-form textarea { font-size: 16px; }
    .bi-books { grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; margin-top: 32px; }
    .bi-stats { width: calc(100% - 40px); }
    .bi-stat-description { font-size: 12px; line-height: 1.5; }
    .bi-packages-body { padding-inline: 16px; }
    .bi-package-features, .bi-package--featured .bi-package-features { padding-inline: 12px; }
    .bi-package-summary h3, .bi-service-card h3 { overflow-wrap: break-word; }
    .bi-research-actions .bi-btn { flex: 1 1 150px; min-width: 0; }
    .bi-portfolio-arrow, .bi-genres-toggle { width: 44px; height: 44px; }
    .bi-testimonials-layout { grid-template-columns: minmax(0, 1fr); }
    .bi-testimonial-copy { width: 100%; }
    .bi-testimonial-controls { flex-shrink: 0; gap: 12px; }
    .bi-platforms-stats { width: 100%; max-width: 440px; }
    .bi-platforms-stats span { flex: 1 1 0; min-width: 0; display: grid; place-items: center; }
    .bi-impact-actions { margin: 0; width: 100%; flex-wrap: wrap; gap: 12px; }
    .bi-impact-actions .bi-btn { flex: 1 1 140px; min-width: 0; padding-inline: 14px; }
    .bi-footer-contact { max-width: 100%; }
    .bi-footer-contact span { flex-shrink: 0; }
    .bi-footer-nav a { padding-block: 8px; }
    .bi-footer-nav ul { gap: 2px; }
    .bi-enquiry-layout { grid-template-columns: minmax(0, 1fr); }
    .bi-enquiry-summary { padding: 28px 24px 22px; }
    .bi-enquiry-eyebrow { padding-right: 38px; }
    .bi-enquiry-summary h2 { margin-top: 16px; font-size: 28px; }
    .bi-enquiry-package { margin: 18px 0 0; padding: 16px; }
    .bi-enquiry-contact { display: none; }
    .bi-enquiry-body { padding: 24px; }
}
@media (max-width: 480px) {
    .bi-header-inner { grid-template-columns: minmax(0, 1fr) auto auto; gap: 4px; }
    .bi-menu-toggle { gap: 5px; font-size: 12px; padding-inline: 6px; }
    .bi-header-actions .bi-btn { padding-inline: 10px; font-size: 10px; }
    .bi-topbar-inner {  padding-block: 8px; gap: 35px; }
    .bi-contact-link { font-size: 12px; }
    .bi-hero-title { font-size: clamp(24px, 6.5vw, 29px); }
    .bi-books { gap: 10px; }
    .bi-stat-title { font-size: 13px; }
    .bi-stats { column-gap: 12px; padding-block: 26px; }
    .bi-packages-heading h2, .bi-services-heading h2,
    .bi-portfolio-heading h2, .bi-steps-section h2, .bi-platforms-section h2 { font-size: 26px; }
    .bi-packages-body { padding: 24px 12px 0; }
    .bi-package-summary { padding: 26px 16px; }
    .bi-package-features { font-size: 14px; }
    .bi-publishing-cta { padding: 36px 16px; }
    .bi-publishing-cta h2 { font-size: 22px; }
    .bi-service-card { padding: 30px 20px; }
    .bi-research-banner { padding: 10px; }
    .bi-research-banner-inner { padding: 28px 16px; gap: 24px; }
    .bi-research-copy h2 { font-size: 23px; }
    .bi-research-actions { flex-direction: column; }
    .bi-research-actions .bi-btn { flex: auto; width: 100%; }
    .bi-portfolio-panel { padding-inline: 16px; }
    .bi-platforms-stats { font-size: 12px; }
    .bi-platforms-stats span { padding: 8px; }
    .bi-testimonial-bottom { gap: 12px; }
    .bi-testimonial-bottom img { width: 60px; }
    .bi-request-body { padding-inline: 18px; }
    .bi-impact-banner { padding: 48px 20px 28px; }
    .bi-impact-actions { flex-direction: column; }
    .bi-impact-actions .bi-btn { flex: auto; width: 100%; }
    .bi-footer-columns { gap: 28px 16px; }
    .bi-footer-nav h2 { font-size: 15px; }
    .bi-footer-nav ul { padding-left: 16px; font-size: 13px; }
    .bi-footer-assurances { padding: 24px 18px; gap: 22px; }
    .bi-chat-dialog { padding: 36px 22px 26px; }
    .bi-enquiry-summary, .bi-enquiry-body { padding-inline: 20px; }
    .bi-enquiry-body > h3 { font-size: 23px; }
    .bi-enquiry-submit { gap: 12px; padding-inline: 18px; }
}

/* Header actions + manuscript upload popup */
.bi-header-actions { display: flex; align-items: center; gap: 12px; }
.bi-upload-trigger { min-height: 50px; gap: 8px; }
.bi-upload-trigger span { font-size: 16px; line-height: 1; }
@media (max-width: 800px) {
    .bi-header-inner { grid-template-columns: minmax(0, 1fr) auto; }
    .bi-header-actions { grid-column: 1 / -1; }
    .bi-header-actions .bi-btn { flex: 1; }
}
.bi-upload-modal { width: min(560px, calc(100% - 32px)); min-height: calc(100vh); margin: auto; padding: 0px 48px 0px; border: 0; border-radius: 22px; background: #fff; color: var(--bi-black); box-shadow: 0 30px 100px #0005; overflow: auto; overscroll-behavior: contain; }
.bi-upload-modal::backdrop { background: #111119b8; backdrop-filter: blur(7px); }
.bi-upload-modal[open] { animation: bi-modal-enter .3s ease-out; }
.bi-upload-badge { display: grid; place-items: center; width: 56px; height: 56px; border-radius: 50%; background: #ffeec2; color: #9a5d00; font-size: 26px; }
.bi-upload-title { margin: 24px 0 14px; font-family: Georgia, "Times New Roman", serif; font-size: clamp(28px, 4.4vw, 28px); font-weight: 400; line-height: 1.15; }
.bi-upload-intro { margin: 0 0 12px; color: #555; font-size: 15px; line-height: 1.7; }
.bi-upload-form { display: grid; }
.bi-upload-form > label:not(.bi-upload-drop):not(.bi-upload-consent) { margin: 16px 0 8px; font-size: 14px; font-weight: 600; }
.bi-upload-form input[type="text"], .bi-upload-form input[type="email"], .bi-upload-form input[type="tel"] { width: 100%; min-height: 54px; padding: 12px 16px; border: 1px solid #e5ddd2; border-radius: 10px; background: #fffcf7; color: #222; font-size: 15px; }
.bi-upload-form input[type="text"]:focus, .bi-upload-form input[type="email"]:focus, .bi-upload-form input[type="tel"]:focus { background: #fff; border-color: var(--bi-primary); outline: 2px solid #f1930030; outline-offset: 1px; }
.bi-upload-drop { display: grid; justify-items: center; gap: 4px; padding: 16px 16px; border: 1px dashed #d9a33f; border-radius: 12px; background: #fffaef; text-align: center; cursor: pointer; transition: background .2s ease, border-color .2s ease; }
.bi-upload-drop:hover, .bi-upload-drop.bi-is-dragging, .bi-upload-drop:focus-within { background: #fff1d6; border-color: var(--bi-primary); }
.bi-upload-drop:focus-within { outline: 2px solid #f1930060; outline-offset: 2px; }
.bi-upload-drop.bi-has-file { border-style: solid; }
.bi-upload-drop-title { color: #9a5d00; font-size: 17px; }
.bi-upload-drop-note { color: #666; font-size: 12px; }
.bi-upload-file-name { margin-top: 6px; padding: 4px 12px; border-radius: 99px; background: #fff; color: #222; font-size: 13px; font-weight: 500; overflow-wrap: anywhere; }
.bi-upload-file-name[hidden] { display: none; }
.bi-upload-consent { display: flex; align-items: flex-start; gap: 10px; margin: 18px 0 4px; color: #444; font-size: 13px; line-height: 1.5; cursor: pointer; }
.bi-upload-consent input { flex-shrink: 0; width: 16px; height: 16px; margin: 1px 0 0; accent-color: var(--bi-primary); }
.bi-upload-consent a { text-decoration: underline; }
.bi-upload-submit { width: 100%; min-height: 54px; margin-top: 18px; gap: 14px; border-radius: 10px; color: #111; font-size: 15px; text-transform: none; box-shadow: 0 14px 30px #f193003d; }
.bi-upload-submit span { font-size: 18px; }
.bi-upload-form .bi-form-status { margin: 10px 0 0; color: #78500b; font-size: 13px; }
.bi-upload-form .bi-form-status:empty { display: none; }
@media (max-width: 680px) {
    .bi-upload-modal { width: calc(100% - 24px); min-height: calc(90vh); padding: 32px 22px 26px; border-radius: 16px; }
    .bi-upload-form input[type="text"], .bi-upload-form input[type="email"], .bi-upload-form input[type="tel"] { font-size: 16px; }
}
@media (prefers-reduced-motion: reduce) { .bi-upload-modal[open] { animation: none; } }

.bi-upload-modal {
    min-height: fit-content;
    padding-bottom: 40px;
}