:root {
    --color-white: #FFFFFF;
    --color-text: #1A1A1A;
    --color-text-light: #666666;
    --color-gold: #C5A059;
    --color-navy: #1A2332;

    --font-display: 'Playfair Display', serif;
    --font-sans: 'Inter', sans-serif;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--color-white);
    color: var(--color-text);
    line-height: 1.7;
    -webkit-font-smoothing: antialiased;
}

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 6vw;
}

/* TYPOGRAPHY */
h1,
h2,
h3 {
    font-family: var(--font-display);
    font-weight: 400;
}

.section-heading {
    font-size: 2.75rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--color-gold);
    letter-spacing: -0.01em;
}

.section-heading-light {
    font-size: 2.75rem;
    margin-bottom: 2rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.3);
    letter-spacing: -0.01em;
    color: var(--color-white);
}

.section-intro {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: 3rem;
    font-weight: 300;
}

/* HERO */
.hero {
    padding: 12vh 0 10vh;
    background: var(--color-white);
}

.hero-title {
    font-size: 5.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.hero-subhead {
    font-size: 1.75rem;
    color: var(--color-text-light);
    font-weight: 300;
    margin-bottom: 2.5rem;
}

.hero-body {
    max-width: 800px;
    margin-bottom: 3rem;
}

.hero-body p {
    font-size: 1.15rem;
    line-height: 1.8;
    margin-bottom: 1.5rem;
    color: var(--color-text);
}

/* CTA BUTTON */
.cta-button {
    display: inline-block;
    padding: 1.25rem 3rem;
    background: var(--color-gold);
    color: var(--color-white);
    text-decoration: none;
    font-size: 1.05rem;
    font-weight: 500;
    border-radius: 2px;
    transition: all 0.3s;
}

.cta-button:hover {
    background: #B39049;
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(197, 160, 89, 0.3);
}

/* THE SHIFT (Comparison Section) */
.section-shift {
    padding: 12vh 0;
    background: #FAFAFA;
}

.section-heading-centered {
    font-family: var(--font-display);
    font-size: 2.75rem;
    text-align: center;
    margin-bottom: 5rem;
    color: var(--color-navy);
}

.comparison-container {
    max-width: 900px;
    margin: 0 auto;
}

.comparison-grid {
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 0;
    margin-bottom: 5rem;
}

.comparison-col {
    padding: 0 3rem;
}

.comparison-col.left {
    text-align: right;
}

.comparison-col.right {
    text-align: left;
}

.comparison-title {
    font-family: var(--font-sans);
    font-size: 0.85rem;
    text-transform: uppercase;
    color: var(--color-gold);
    letter-spacing: 0.12em;
    margin-bottom: 2rem;
    font-weight: 500;
}

.comparison-list {
    list-style: none;
}

.comparison-list li {
    font-size: 1.1rem;
    color: var(--color-text-light);
    margin-bottom: 1.25rem;
    font-weight: 300;
}

.vertical-divider {
    width: 1px;
    height: 300px;
    background-color: #E8E8E8;
}

.comparison-closing {
    font-family: var(--font-display);
    font-size: 1.65rem;
    text-align: center;
    color: var(--color-navy);
    margin-top: 4rem;
}

/* WHY MOST FLEX STRATEGIES FAIL */
.section-fail {
    padding: 12vh 0;
    background: var(--color-white);
    text-align: center;
}

.fail-subtext {
    font-size: 1.25rem;
    color: var(--color-text-light);
    margin-bottom: 4rem;
    font-weight: 300;
}

.section-fail {
    background-color: #F8F9FA;
    padding: 10rem 0;
    border-bottom: 1px solid #EDEDED;
}

.blueprint-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    max-width: 1200px;
    margin: 5rem auto 0;
    border-top: 1px solid #E0E0E0;
    border-left: 1px solid #E0E0E0;
    background-color: #F8F9FA;
}

.blueprint-block {
    background: #FFFFFF;
    padding: 3.5rem 2.5rem;
    border-right: 1px solid #E0E0E0;
    border-bottom: 1px solid #E0E0E0;
    display: flex;
    flex-direction: column;
    min-height: 220px;
    transition: all 0.4s cubic-bezier(0.165, 0.84, 0.44, 1);
}

.blueprint-block:hover {
    background: #FAFAFA;
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.03);
    z-index: 10;
}

.blueprint-num {
    font-size: 0.7rem;
    font-weight: 700;
    color: var(--color-gold);
    letter-spacing: 0.2em;
    margin-bottom: 1.5rem;
    font-family: var(--font-primary);
}

.blueprint-label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--color-text-light);
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 1rem;
}

.blueprint-result {
    font-family: 'Playfair Display', serif;
    font-size: 1.6rem;
    color: var(--color-navy);
    line-height: 1.25;
    font-weight: 500;
}

.blueprint-conclusion {
    grid-column: span 3;
    padding: 6rem 2rem;
    background: #FFFFFF;
    border-right: 1px solid #E0E0E0;
    border-bottom: 1px solid #E0E0E0;
    text-align: center;
    position: relative;
}

.blueprint-conclusion p {
    font-size: 1.2rem;
    color: var(--color-text-light);
    margin-bottom: 1rem;
    letter-spacing: 0.05em;
}

.blueprint-conclusion h3 {
    font-family: 'Playfair Display', serif;
    font-size: 2.8rem;
    color: var(--color-navy);
    margin: 0;
    font-weight: 500;
}

@media (max-width: 1024px) {
    .blueprint-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .blueprint-conclusion {
        grid-column: span 2;
    }
}

@media (max-width: 768px) {
    .blueprint-grid {
        grid-template-columns: 1fr;
    }

    .blueprint-conclusion {
        grid-column: span 1;
    }

    .blueprint-block {
        padding: 2.5rem 2rem;
    }
}

/* THE ARCHITECTURE - ACCORDION */
.section-architecture {
    padding: 10vh 0;
    background: var(--color-white);
}

.accordion {
    margin-top: 3rem;
}

.accordion-item {
    background: var(--color-white);
    margin-bottom: 0;
    border-top: 1px solid #E8E8E8;
    transition: all 0.3s;
}

.accordion-item:last-child {
    border-bottom: 1px solid #E8E8E8;
}

.accordion-item.active {
    background: #FAFAFA;
}

.accordion-header {
    width: 100%;
    padding: 1.5rem 0;
    background: none;
    border: none;
    display: flex;
    align-items: center;
    gap: 1.5rem;
    cursor: pointer;
    font-family: var(--font-sans);
    font-size: 1.25rem;
    font-weight: 500;
    color: var(--color-text);
    text-align: left;
    transition: all 0.3s;
    outline: none;
}

.accordion-header::-moz-focus-inner {
    border: 0;
}

.accordion-header:hover {
    color: var(--color-gold);
}

.layer-num {
    font-size: 1rem;
    color: var(--color-gold);
    min-width: 40px;
    font-family: var(--font-sans);
    font-weight: 400;
}

.layer-name {
    flex: 1;
}

.accordion-icon {
    font-size: 1.5rem;
    color: var(--color-text-light);
    transition: transform 0.3s;
    font-weight: 300;
}

.accordion-item.active .accordion-icon {
    transform: rotate(45deg);
}

.accordion-content {
    max-height: 0;
    overflow: hidden;
    padding: 0 0 0 55px;
    transition: all 0.5s cubic-bezier(0.16, 1, 0.3, 1);
    opacity: 0;
}

.accordion-item.active .accordion-content {
    max-height: 1200px;
    padding-bottom: 3.5rem;
    padding-top: 0.5rem;
    opacity: 1;
}

.layer-definition {
    font-size: 1.15rem;
    color: var(--color-text);
    line-height: 1.6;
    margin-bottom: 2.5rem;
    font-family: var(--font-display);
    font-style: italic;
}

.accordion-subsections {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 3rem;
}

.accordion-subsection h4 {
    font-family: var(--font-sans);
    font-size: 0.75rem;
    text-transform: uppercase;
    color: var(--color-gold);
    letter-spacing: 0.1em;
    margin-bottom: 1.25rem;
    font-weight: 600;
}

.accordion-subsection ul {
    list-style: none;
}

.accordion-subsection li {
    font-size: 0.95rem;
    color: var(--color-text-light);
    margin-bottom: 0.75rem;
    line-height: 1.5;
    position: relative;
    padding-left: 1.25rem;
}

.accordion-subsection li::before {
    content: "•";
    position: absolute;
    left: 0;
    color: var(--color-gold);
}

.component-tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
}

.tag {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--color-white);
    border: 1px solid #E8E8E8;
    border-radius: 4px;
    font-size: 0.9rem;
    color: var(--color-text);
    font-weight: 400;
    transition: all 0.2s;
}

.tag:hover {
    border-color: var(--color-gold);
    background: #FAFAFA;
}

/* SYSTEM INTERLOCK */
.section-interlock {
    padding: 12vh 0;
    background: var(--color-navy);
    color: var(--color-white);
}

.interlock-container {
    max-width: 900px;
    margin: 0 auto;
}

.interlock-table {
    width: 100%;
    border-collapse: collapse;
    margin: 4rem 0;
}

.interlock-table th {
    text-align: left;
    font-family: var(--font-sans);
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--color-gold);
    letter-spacing: 0.1em;
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.interlock-table td {
    padding: 1.5rem 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 1rem;
    font-weight: 300;
}

.interlock-table tr:last-child td {
    border-bottom: none;
}

.interlock-closing {
    text-align: center;
    font-size: 1.5rem;
    font-weight: 500;
    margin-top: 4rem;
    color: var(--color-white);
}

/* STRUCTURED EVOLUTION */

.section-heading-light {
    font-family: var(--font-display);
    font-size: 2.75rem;
    text-align: center;
    margin-bottom: 5rem;
    color: var(--color-white);
    font-weight: 400;
}


/* EVOLUTION STYLES REMOVED */

/* THIS IS NOT AN AMENITY */
.section-amenity {
    padding: 10vh 0;
    background: var(--color-white);
}

.strikethrough-list {
    margin: 3rem 0;
    text-align: center;
}

.strikethrough {
    font-size: 1rem;
    color: var(--color-gold);
    margin-bottom: 0.75rem;
    text-decoration: line-through;
    font-style: normal;
}

.declarative-statements {
    margin-top: 3rem;
    text-align: center;
}

.statement {
    font-family: var(--font-display);
    font-size: 1.65rem;
    color: var(--color-text);
    line-height: 1.5;
    margin-bottom: 1rem;
    padding-left: 0;
    border-left: none;
}

.statement:first-child {
    font-size: 2rem;
    margin-bottom: 1.5rem;
}

/* THE NEW OPERATING STANDARD */
.section-standard {
    padding: 10vh 0 12vh;
    background: #FAFAFA;
    text-align: center;
}

.standard-body {
    max-width: 800px;
    margin: 0 auto 3rem;
}

.blueprint-subhead {
    font-size: 0.95rem;
    color: var(--color-text-light);
    font-weight: 300;
    letter-spacing: 0.01em;
}

.cta-outline {
    display: inline-block;
    padding: 1rem 3.5rem;
    background: transparent;
    color: var(--color-gold);
    border: 1px solid var(--color-gold);
    text-decoration: none;
    font-size: 0.85rem;
    font-weight: 500;
    border-radius: 2px;
    transition: all 0.3s;
    letter-spacing: 0.05em;
}

.dual-buttons {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 1rem;
}

.cta-outline:hover {
    background: rgba(197, 160, 89, 0.05);
    transform: translateY(-1px);
}

/* FOOTER */
.footer {
    padding: 8vh 0 4vh;
    background: #FAFAFA;
}

.footer-content {
    display: flex;
    justify-content: space-between;
    padding-top: 2rem;
    border-top: 1px solid #E8E8E8;
    font-size: 0.8rem;
    color: #999;
    font-weight: 300;
}

/* RESPONSIVE */
@media (max-width: 900px) {
    .hero-title {
        font-size: 3.5rem;
    }

    .shift-comparison {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .evolution-phases {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .statement {
        font-size: 1.45rem;
    }

    .accordion-header {
        font-size: 1.35rem;
        padding: 1.5rem 1.75rem;
    }

    .layer-definition,
    .layer-detail {
        padding-left: 1.75rem;
        padding-right: 1.75rem;
    }
}