/* =========================================================
   Value Realized Book Page
   Antioch Value Assurance
========================================================= */


/* =========================
   Variables
========================= */

:root {
    --navy-950: #07182b;
    --navy-900: #0b213b;
    --navy-800: #123354;
    --navy-700: #194a73;

    --charcoal-900: #202832;
    --charcoal-700: #48515c;
    --charcoal-500: #6d7580;

    --gold-600: #b58a36;
    --gold-500: #cda34e;
    --gold-300: #e0c47c;

    --white: #ffffff;
    --off-white: #f6f7f8;
    --light-gray: #e8ebee;
    --border-color: #dce1e5;

    --shadow-soft:
        0 18px 45px rgba(7, 24, 43, 0.12);

    --shadow-book:
        0 30px 60px rgba(0, 0, 0, 0.32);

    --container-width: 1180px;
    --header-height: 84px;
}


/* =========================
   Reset and Base
========================= */

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    background: var(--white);
    color: var(--charcoal-900);
    font-family:
        Inter,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    font-size: 17px;
    line-height: 1.7;
}

img {
    display: block;
    max-width: 100%;
}

a {
    color: inherit;
    text-decoration: none;
}

button,
input,
textarea,
select {
    font: inherit;
}

button {
    border: 0;
}

.container {
    width: min(
        calc(100% - 40px),
        var(--container-width)
    );
    margin-inline: auto;
}

h1,
h2,
h3 {
    color: var(--navy-950);
    font-family:
        Georgia,
        "Times New Roman",
        serif;
    font-weight: 600;
    line-height: 1.15;
}

h1 {
    font-size: clamp(3.3rem, 7vw, 6.5rem);
    letter-spacing: -0.045em;
}

h2 {
    font-size: clamp(2.2rem, 4.2vw, 3.8rem);
    letter-spacing: -0.035em;
}

h3 {
    font-size: 1.5rem;
}

p + p {
    margin-top: 1.15rem;
}


/* =========================
   Shared Components
========================= */

.section-label,
.eyebrow {
    color: var(--gold-600);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.17em;
    line-height: 1.4;
    text-transform: uppercase;
}

.button {
    align-items: center;
    border: 1px solid transparent;
    display: inline-flex;
    font-size: 0.83rem;
    font-weight: 800;
    justify-content: center;
    letter-spacing: 0.08em;
    min-height: 54px;
    padding: 0.85rem 1.65rem;
    text-align: center;
    text-transform: uppercase;
    transition:
        background-color 180ms ease,
        border-color 180ms ease,
        color 180ms ease,
        transform 180ms ease;
}

.button:hover {
    transform: translateY(-2px);
}

.button-primary {
    background: var(--gold-500);
    color: var(--navy-950);
}

.button-primary:hover {
    background: var(--gold-300);
}

.button-secondary {
    border-color: rgba(255, 255, 255, 0.55);
    color: var(--white);
}

.button-secondary:hover {
    background: var(--white);
    border-color: var(--white);
    color: var(--navy-950);
}

.button-gold {
    background: var(--gold-500);
    color: var(--navy-950);
}

.button-gold:hover {
    background: var(--gold-300);
}

.button-outline-light {
    border-color: rgba(255, 255, 255, 0.55);
    color: var(--white);
}

.button-outline-light:hover {
    background: var(--white);
    border-color: var(--white);
    color: var(--navy-950);
}

.text-link {
    align-items: center;
    color: var(--navy-800);
    display: inline-flex;
    font-weight: 800;
    gap: 0.55rem;
    margin-top: 1.8rem;
}

.text-link span {
    color: var(--gold-600);
    font-size: 1.2rem;
    transition: transform 180ms ease;
}

.text-link:hover span {
    transform: translateX(5px);
}


/* =========================
   Header
========================= */

.site-header {
    background: rgba(7, 24, 43, 0.97);
    border-bottom: 1px solid rgba(255, 255, 255, 0.09);
    min-height: var(--header-height);
    position: sticky;
    top: 0;
    z-index: 1000;
}

.header-inner {
    align-items: center;
    display: flex;
    justify-content: space-between;
    min-height: var(--header-height);
}

.brand {
    align-items: center;
    display: inline-flex;
    gap: 0.9rem;
}

.brand-logo {
    height: 52px;
    object-fit: contain;
    width: 52px;
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.2;
}

.brand-name {
    color: var(--white);
    font-family:
        Georgia,
        "Times New Roman",
        serif;
    font-size: 1rem;
    font-weight: 700;
    letter-spacing: 0.025em;
}

.brand-tagline {
    color: var(--gold-300);
    font-size: 0.63rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    margin-top: 0.28rem;
    text-transform: uppercase;
}

.primary-navigation {
    align-items: center;
    display: flex;
    gap: 1.45rem;
}

.primary-navigation a {
    color: rgba(255, 255, 255, 0.82);
    font-size: 0.76rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    padding-block: 0.5rem;
    text-transform: uppercase;
    transition: color 180ms ease;
}

.primary-navigation a:hover,
.primary-navigation a.active {
    color: var(--gold-300);
}

.primary-navigation .nav-cta {
    border: 1px solid var(--gold-500);
    color: var(--gold-300);
    padding: 0.68rem 1rem;
}

.primary-navigation .nav-cta:hover {
    background: var(--gold-500);
    color: var(--navy-950);
}

.nav-toggle {
    background: transparent;
    cursor: pointer;
    display: none;
    flex-direction: column;
    gap: 5px;
    padding: 0.5rem;
}

.nav-toggle span {
    background: var(--white);
    display: block;
    height: 2px;
    width: 27px;
}


/* =========================
   Book Hero
========================= */

.book-hero {
    background:
        linear-gradient(
            110deg,
            rgba(7, 24, 43, 0.98) 0%,
            rgba(11, 33, 59, 0.94) 52%,
            rgba(18, 51, 84, 0.9) 100%
        ),
        url("images/value-realized-background.jpg")
        center / cover no-repeat;
    color: var(--white);
    overflow: hidden;
    padding: 7rem 0;
    position: relative;
}

.book-hero::after {
    background:
        radial-gradient(
            circle,
            rgba(205, 163, 78, 0.16) 0%,
            transparent 68%
        );
    content: "";
    height: 620px;
    position: absolute;
    right: -180px;
    top: -180px;
    width: 620px;
}

.hero-grid {
    align-items: center;
    display: grid;
    gap: clamp(3rem, 7vw, 7rem);
    grid-template-columns: minmax(260px, 0.8fr) minmax(0, 1.5fr);
    position: relative;
    z-index: 1;
}

.book-cover-column {
    text-align: center;
}

.book-cover-frame {
    margin-inline: auto;
    max-width: 390px;
    perspective: 1200px;
    position: relative;
}

.book-cover-frame::before {
    background: rgba(205, 163, 78, 0.16);
    content: "";
    filter: blur(50px);
    inset: 10% -10%;
    position: absolute;
    z-index: -1;
}

.book-cover {
    box-shadow: var(--shadow-book);
    margin-inline: auto;
    transform: rotateY(4deg) rotateZ(-1deg);
    transition: transform 250ms ease;
    width: 100%;
}

.book-cover:hover {
    transform: rotateY(0deg) rotateZ(0deg)
        translateY(-5px);
}

.availability-note {
    color: rgba(255, 255, 255, 0.68);
    font-size: 0.78rem;
    letter-spacing: 0.06em;
    margin-top: 1.5rem;
    text-transform: uppercase;
}

.hero-content {
    max-width: 720px;
}

.hero-content h1 {
    color: var(--white);
    margin-top: 0.65rem;
}

.book-subtitle {
    color: var(--gold-300);
    font-family:
        Georgia,
        "Times New Roman",
        serif;
    font-size: clamp(1.3rem, 2.3vw, 2rem);
    line-height: 1.35;
    margin-top: 1.2rem;
    max-width: 660px;
}

.book-author {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.76rem;
    font-weight: 800;
    letter-spacing: 0.14em;
    margin-top: 1.25rem;
    text-transform: uppercase;
}

.hero-lead {
    color: rgba(255, 255, 255, 0.94);
    font-size: clamp(1.08rem, 1.7vw, 1.3rem);
    line-height: 1.75;
    margin-top: 2rem;
}

.hero-supporting-text {
    color: rgba(255, 255, 255, 0.72);
    max-width: 690px;
}

.hero-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-top: 2.3rem;
}

.book-highlights {
    border-top: 1px solid rgba(255, 255, 255, 0.18);
    display: grid;
    gap: 1rem;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 2.7rem;
    padding-top: 1.6rem;
}

.highlight-item {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.highlight-label {
    color: var(--gold-300);
    font-size: 0.67rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    text-transform: uppercase;
}

.highlight-value {
    color: rgba(255, 255, 255, 0.85);
    font-size: 0.88rem;
}


/* =========================
   Statement
========================= */

.statement-section {
    background: var(--gold-500);
    padding: 4rem 0;
}

.statement-container {
    max-width: 960px;
    text-align: center;
}

.statement-section .section-label {
    color: var(--navy-950);
}

.statement-section blockquote {
    color: var(--navy-950);
    font-family:
        Georgia,
        "Times New Roman",
        serif;
    font-size: clamp(1.7rem, 3.3vw, 2.9rem);
    font-weight: 600;
    line-height: 1.35;
    margin-top: 1rem;
}


/* =========================
   About the Book
========================= */

.content-section {
    padding: 7rem 0;
}

.two-column-layout {
    display: grid;
    gap: clamp(3rem, 7vw, 7rem);
    grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
}

.two-column-layout h2 {
    margin-top: 0.8rem;
}

.body-copy {
    color: var(--charcoal-700);
    font-size: 1.06rem;
}


/* =========================
   Learning Cards
========================= */

.learning-section {
    background: var(--off-white);
    padding: 7rem 0;
}

.section-heading {
    max-width: 770px;
}

.section-heading h2 {
    margin-top: 0.75rem;
}

.section-heading > p:last-child {
    color: var(--charcoal-700);
    font-size: 1.05rem;
    margin-top: 1.25rem;
}

.centered-heading {
    margin-inline: auto;
    text-align: center;
}

.card-grid {
    display: grid;
    gap: 1.3rem;
    grid-template-columns: repeat(3, 1fr);
    margin-top: 3.5rem;
}

.content-card {
    background: var(--white);
    border: 1px solid var(--border-color);
    min-height: 280px;
    padding: 2rem;
    transition:
        border-color 180ms ease,
        box-shadow 180ms ease,
        transform 180ms ease;
}

.content-card:hover {
    border-color: var(--gold-500);
    box-shadow: var(--shadow-soft);
    transform: translateY(-5px);
}

.card-number {
    color: var(--gold-600);
    display: block;
    font-size: 0.72rem;
    font-weight: 800;
    letter-spacing: 0.12em;
    margin-bottom: 2.2rem;
}

.content-card h3 {
    margin-bottom: 0.85rem;
}

.content-card p {
    color: var(--charcoal-700);
    font-size: 0.95rem;
}


/* =========================
   Framework
========================= */

.framework-section {
    background: var(--white);
    padding: 7rem 0;
}

.framework-grid {
    display: grid;
    gap: 1.15rem;
    grid-template-columns: repeat(5, 1fr);
    margin-top: 3.5rem;
}

.framework-item {
    border-top: 3px solid var(--gold-500);
    box-shadow: var(--shadow-soft);
    min-height: 235px;
    padding: 1.5rem;
}

.framework-icon {
    align-items: center;
    background: var(--navy-900);
    color: var(--gold-300);
    display: flex;
    font-family:
        Georgia,
        "Times New Roman",
        serif;
    font-size: 1.25rem;
    font-weight: 700;
    height: 46px;
    justify-content: center;
    margin-bottom: 2rem;
    width: 46px;
}

.framework-item h3 {
    font-size: 1.2rem;
}

.framework-item p {
    color: var(--charcoal-700);
    font-size: 0.9rem;
    margin-top: 0.6rem;
}

.assurance-panel {
    align-items: center;
    background: var(--navy-950);
    color: var(--white);
    display: grid;
    gap: 3rem;
    grid-template-columns: 0.7fr 1.3fr;
    margin-top: 1.5rem;
    padding: 2.5rem;
}

.assurance-panel h3 {
    color: var(--white);
    font-size: 2rem;
    margin-top: 0.4rem;
}

.assurance-panel > p {
    color: rgba(255, 255, 255, 0.78);
}


/* =========================
   Audience
========================= */

.audience-section {
    background: var(--off-white);
    padding: 7rem 0;
}

.audience-grid {
    align-items: start;
    display: grid;
    gap: clamp(3rem, 8vw, 8rem);
    grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
}

.audience-grid h2 {
    margin-top: 0.8rem;
}

.audience-list {
    border-top: 1px solid var(--border-color);
}

.audience-item {
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    display: grid;
    gap: 1.4rem;
    grid-template-columns: 42px 1fr;
    padding: 1.35rem 0;
}

.audience-item span {
    color: var(--gold-600);
    font-size: 0.72rem;
    font-weight: 800;
}

.audience-item p {
    color: var(--charcoal-900);
    font-family:
        Georgia,
        "Times New Roman",
        serif;
    font-size: 1.17rem;
    font-weight: 600;
}


/* =========================
   Author
========================= */

.author-section {
    padding: 7rem 0;
}

.author-grid {
    align-items: center;
    display: grid;
    gap: clamp(3rem, 8vw, 7rem);
    grid-template-columns: minmax(250px, 0.8fr) minmax(0, 1.2fr);
}

.author-image-wrapper {
    max-width: 470px;
    position: relative;
}

.author-image-wrapper::before {
    border: 2px solid var(--gold-500);
    content: "";
    inset: 22px -22px -22px 22px;
    position: absolute;
    z-index: -1;
}

.author-image {
    aspect-ratio: 4 / 5;
    object-fit: cover;
    width: 100%;
}

.author-content h2 {
    margin-top: 0.6rem;
}

.author-role {
    color: var(--gold-600);
    font-size: 0.75rem;
    font-weight: 800;
    letter-spacing: 0.11em;
    margin-top: 0.7rem;
    text-transform: uppercase;
}

.author-content > p:not(.section-label):not(.author-role) {
    color: var(--charcoal-700);
}


/* =========================
   Final CTA
========================= */

.final-cta {
    background:
        linear-gradient(
            115deg,
            rgba(7, 24, 43, 0.98),
            rgba(18, 51, 84, 0.95)
        ),
        url("images/mountain-background.jpg")
        center / cover no-repeat;
    color: var(--white);
    padding: 6rem 0;
}

.final-cta-inner {
    align-items: center;
    display: grid;
    gap: 4rem;
    grid-template-columns: minmax(0, 1.3fr) auto;
}

.final-cta h2 {
    color: var(--white);
    margin-top: 0.8rem;
    max-width: 800px;
}

.final-cta p:not(.section-label) {
    color: rgba(255, 255, 255, 0.75);
    max-width: 760px;
}

.light-label {
    color: var(--gold-300);
}

.final-cta-actions {
    display: flex;
    flex-direction: column;
    gap: 0.9rem;
    min-width: 230px;
}


/* =========================
   Footer
========================= */

.site-footer {
    background: #05111f;
    color: rgba(255, 255, 255, 0.7);
    padding: 4rem 0 1.5rem;
}

.footer-grid {
    align-items: start;
    display: flex;
    gap: 3rem;
    justify-content: space-between;
}

.footer-brand {
    align-items: flex-start;
    display: flex;
    gap: 1rem;
    max-width: 550px;
}

.footer-logo {
    height: 58px;
    object-fit: contain;
    width: 58px;
}

.footer-company {
    color: var(--white);
    font-family:
        Georgia,
        "Times New Roman",
        serif;
    font-size: 1.1rem;
    font-weight: 700;
}

.footer-brand p:last-child {
    font-size: 0.88rem;
    margin-top: 0.35rem;
}

.footer-links {
    display: flex;
    flex-wrap: wrap;
    gap: 1.4rem;
}

.footer-links a,
.footer-bottom a {
    font-size: 0.74rem;
    font-weight: 700;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    transition: color 180ms ease;
}

.footer-links a:hover,
.footer-bottom a:hover {
    color: var(--gold-300);
}

.footer-bottom {
    align-items: center;
    border-top: 1px solid rgba(255, 255, 255, 0.11);
    display: flex;
    font-size: 0.77rem;
    justify-content: space-between;
    margin-top: 3rem;
    padding-top: 1.5rem;
}

.footer-bottom div {
    display: flex;
    gap: 1.25rem;
}


/* =========================
   Responsive: Laptop
========================= */

@media (max-width: 1080px) {

    .primary-navigation {
        gap: 0.9rem;
    }

    .primary-navigation a {
        font-size: 0.69rem;
    }

    .framework-grid {
        grid-template-columns: repeat(3, 1fr);
    }

    .framework-item {
        min-height: 220px;
    }

}


/* =========================
   Responsive: Tablet
========================= */

@media (max-width: 860px) {

    .nav-toggle {
        display: flex;
    }

    .primary-navigation {
        align-items: stretch;
        background: var(--navy-950);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        display: none;
        flex-direction: column;
        gap: 0;
        left: 0;
        padding: 1rem 20px 1.5rem;
        position: absolute;
        right: 0;
        top: 100%;
    }

    .primary-navigation.is-open {
        display: flex;
    }

    .primary-navigation a {
        border-bottom: 1px solid rgba(255, 255, 255, 0.08);
        padding: 0.9rem 0;
    }

    .primary-navigation .nav-cta {
        margin-top: 0.8rem;
        text-align: center;
    }

    .hero-grid,
    .two-column-layout,
    .audience-grid,
    .author-grid,
    .final-cta-inner {
        grid-template-columns: 1fr;
    }

    .book-cover-frame {
        max-width: 320px;
    }

    .hero-content {
        margin-inline: auto;
        text-align: center;
    }

    .hero-actions {
        justify-content: center;
    }

    .book-highlights {
        text-align: left;
    }

    .card-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .framework-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .assurance-panel {
        grid-template-columns: 1fr;
    }

    .author-image-wrapper {
        margin-inline: auto;
        max-width: 390px;
    }

    .final-cta {
        text-align: center;
    }

    .final-cta-actions {
        flex-direction: row;
        justify-content: center;
    }

}


/* =========================
   Responsive: Mobile
========================= */

@media (max-width: 600px) {

    :root {
        --header-height: 74px;
    }

    body {
        font-size: 16px;
    }

    .container {
        width: min(calc(100% - 30px), var(--container-width));
    }

    .brand-logo {
        height: 43px;
        width: 43px;
    }

    .brand-name {
        font-size: 0.86rem;
    }

    .brand-tagline {
        font-size: 0.53rem;
    }

    .book-hero {
        padding: 4.5rem 0;
    }

    .hero-grid {
        gap: 3rem;
    }

    .book-cover-frame {
        max-width: 250px;
    }

    .hero-actions {
        flex-direction: column;
    }

    .button {
        width: 100%;
    }

    .book-highlights {
        gap: 1.1rem;
        grid-template-columns: 1fr;
    }

    .statement-section,
    .content-section,
    .learning-section,
    .framework-section,
    .audience-section,
    .author-section {
        padding: 4.5rem 0;
    }

    .card-grid,
    .framework-grid {
        grid-template-columns: 1fr;
    }

    .content-card,
    .framework-item {
        min-height: auto;
    }

    .assurance-panel {
        padding: 2rem 1.4rem;
    }

    .author-image-wrapper::before {
        inset: 14px -14px -14px 14px;
    }

    .final-cta {
        padding: 4.5rem 0;
    }

    .final-cta-actions {
        flex-direction: column;
        min-width: 0;
    }

    .footer-grid,
    .footer-bottom {
        align-items: flex-start;
        flex-direction: column;
    }

    .footer-links {
        flex-direction: column;
        gap: 0.8rem;
    }

    .footer-bottom {
        gap: 1rem;
    }

}