:root {
    --ink: #141a1e;
    --ink-soft: #3d474d;
    --muted: #6b757b;
    --paper: #f6f3ec;
    --paper-2: #efeae0;
    --cream: #fbf9f4;
    --forest: #EFE3C6;
    --forest-2: #e3d3a8;
    --forest-text: #274C3A;
    --gold: #b78a3f;
    --gold-soft: #c9a35c;
    --line: rgba(20, 26, 30, .12);
    --shadow: 0 24px 60px -30px rgba(20, 26, 30, .35);
    --maxw: 1120px;
}

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

html {
    scroll-behavior: smooth
}

body {
    font-family: 'Inter', system-ui, sans-serif;
    color: var(--ink);
    background: var(--paper);
    line-height: 1.65;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

h1,
h2,
h3,
.serif {
    font-family: 'Fraunces', Georgia, serif;
    font-weight: 500;
    line-height: 1.12;
    letter-spacing: -.01em
}

.wrap {
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 28px
}

.eyebrow {
    font-size: .72rem;
    letter-spacing: .22em;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 22px;
    display: inline-flex;
    align-items: center;
    gap: 12px;
}

.eyebrow::before {
    content: "";
    width: 30px;
    height: 1px;
    background: var(--gold);
    display: inline-block;
    opacity: .7
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 15px 30px;
    border-radius: 100px;
    font-weight: 500;
    font-size: .95rem;
    text-decoration: none;
    transition: .35s cubic-bezier(.2, .7, .3, 1);
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: var(--forest);
    color: var(--forest-text)
}

.btn-primary:hover {
    background: var(--forest-2);
    transform: translateY(-2px);
    box-shadow: var(--shadow)
}

.btn-gold {
    background: var(--gold);
    color: #1c1408
}

.btn-gold:hover {
    background: var(--gold-soft);
    transform: translateY(-2px);
    box-shadow: var(--shadow)
}

.btn-ghost {
    background: transparent;
    color: var(--ink);
    border: 1px solid var(--line)
}

.btn-ghost:hover {
    border-color: var(--ink);
    transform: translateY(-2px)
}

.btn .arw {
    transition: transform .35s
}

.btn:hover .arw {
    transform: translateX(4px)
}

/* NAV */
header.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 50;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 20px clamp(20px, 4vw, 48px);
    transition: .4s;
}

header.nav.scrolled {
    background: rgba(246, 243, 236, .85);
    backdrop-filter: blur(14px);
    border-bottom: 1px solid var(--line);
    padding-top: 14px;
    padding-bottom: 14px
}

.brand {
    font-family: 'Fraunces', serif;
    font-weight: 600;
    font-size: 1.35rem;
    letter-spacing: .02em;
    color: var(--ink);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 11px
}

.brand .dot {
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: var(--gold);
    box-shadow: 0 0 0 4px rgba(183, 138, 63, .18)
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 34px
}

.nav-links a {
    color: var(--ink-soft);
    text-decoration: none;
    font-size: .9rem;
    font-weight: 450;
    transition: .25s
}

.nav-links a:hover {
    color: var(--ink)
}

.nav-cta {
    padding: 11px 22px;
    font-size: .85rem
}

.menu-btn {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 5px
}

.menu-btn span {
    width: 24px;
    height: 2px;
    background: var(--ink);
    display: block;
    transition: .3s
}

/* HERO */
.hero {
    position: relative;
    padding: 190px 0 120px;
    overflow: hidden
}

.hero::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: 0;
    background:
        radial-gradient(60% 55% at 78% 18%, rgba(183, 138, 63, .14), transparent 60%),
        radial-gradient(55% 60% at 12% 88%, rgba(183, 138, 63, .12), transparent 62%);
}

.hero .wrap {
    position: relative;
    z-index: 1
}

.hero-grid {
    display: grid;
    grid-template-columns: 1.15fr .85fr;
    gap: 60px;
    align-items: center
}

.hero h1 {
    font-size: clamp(2.6rem, 5.6vw, 4.35rem);
    margin-bottom: 26px
}

.hero h1 em {
    font-style: italic;
    color: #8e703d;
}

.hero p.lead {
    font-size: 1.2rem;
    color: var(--ink-soft);
    max-width: 34ch;
    margin-bottom: 38px;
    font-weight: 350
}

.hero-cta {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 44px
}

.hero-stats {
    display: flex;
    gap: 38px;
    flex-wrap: wrap
}

.stat .n {
    font-family: 'Fraunces', serif;
    font-size: 1.7rem;
    color: var(--forest-text);
    display: block
}

.stat .l {
    font-size: .78rem;
    color: var(--muted);
    letter-spacing: .04em
}

.hero-card {
    position: relative;
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: 22px;
    padding: 38px 34px;
    box-shadow: var(--shadow);
}

.hero-card .tag {
    font-size: .7rem;
    letter-spacing: .2em;
    text-transform: uppercase;
    color: var(--gold);
    font-weight: 600
}

.hero-card h3 {
    font-size: 1.5rem;
    margin: 14px 0 18px
}

.hero-card ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 14px
}

.hero-card li {
    display: flex;
    gap: 13px;
    align-items: flex-start;
    font-size: .95rem;
    color: var(--ink-soft)
}

.hero-card li .ic {
    flex: none;
    width: 22px;
    height: 22px;
    border-radius: 50%;
    background: #EFE3C6;
    display: grid;
    place-items: center;
    color: var(--forest-text);
    font-size: .7rem;
    margin-top: 2px
}

.hero-card .footline {
    margin-top: 26px;
    padding-top: 22px;
    border-top: 1px solid var(--line);
    font-size: .85rem;
    color: var(--muted);
    font-style: italic;
    font-family: 'Fraunces', serif
}

/* MARQUEE / PRINCIPLE STRIP */
.strip {
    background: var(--forest);
    color: #8e703d;;
    padding: 22px 0;
    overflow: hidden;
    white-space: nowrap
}

.strip .track {
    display: inline-flex;
    gap: 56px;
    animation: scroll 34s linear infinite;
    font-family: 'Fraunces', serif;
    font-size: 1.05rem;
    font-style: italic
}

.strip .track span {
    opacity: .86
}

.strip .track span::after {
    content: "\25E6";
    margin-left: 56px;
    color: var(--gold);
    font-style: normal
}

@keyframes scroll {
    to {
        transform: translateX(-50%)
    }
}

section {
    padding: 110px 0
}

.section-head {
    max-width: 720px;
    margin-bottom: 64px
}

.section-head h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    margin-bottom: 20px
}

.section-head p {
    font-size: 1.1rem;
    color: var(--ink-soft);
    font-weight: 350
}

/* PROBLEM */
.problem {
    background: var(--paper-2)
}

.prob-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 26px
}

.prob-card {
    background: var(--cream);
    border: 1px solid var(--line);
    border-radius: 18px;
    padding: 32px 28px;
    transition: .4s
}

.prob-card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow)
}

.prob-card .num {
    font-family: 'Fraunces', serif;
    font-size: 1.05rem;
    color: var(--gold);
    font-weight: 600;
    margin-bottom: 16px
}

.prob-card h3 {
    font-size: 1.28rem;
    margin-bottom: 12px
}

.prob-card p {
    font-size: .96rem;
    color: var(--ink-soft)
}

.prob-note {
    margin-top: 50px;
    text-align: center;
    font-family: 'Fraunces', serif;
    font-style: italic;
    font-size: 1.35rem;
    color: var(--forest-text);
    max-width: 760px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.4
}

/* BELIEF / PHILOSOPHY split */
.belief {
    position: relative
}

.belief-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 70px;
    align-items: center
}

.belief-visual {
    aspect-ratio: 1/1;
    border-radius: 26px;
    position: relative;
    overflow: hidden;
    background: linear-gradient(150deg, var(--forest), var(--forest-2));
    box-shadow: var(--shadow);
    display: grid;
    place-items: center;
    padding: 44px;
}

.belief-visual .chain {
    color: var(--forest-text);
    text-align: center
}

.belief-visual .chain .step {
    font-family: 'Fraunces', serif;
    font-size: 1.55rem;
    padding: 8px 0;
    position: relative;
    opacity: .55;
    transition: .5s
}

.belief-visual .chain .step.on {
    opacity: 1;
    color: var(--forest-text)
}

.belief-visual .chain .step em {
    color: var(--gold);
    font-style: italic
}

.belief-visual .chain .arrow {
    color: var(--gold);
    font-size: .9rem;
    opacity: .7
}

.belief h2 {
    font-size: clamp(2rem, 4vw, 2.9rem);
    margin-bottom: 24px
}

.belief p {
    color: var(--ink-soft);
    margin-bottom: 18px;
    font-size: 1.05rem
}

.belief p strong {
    color: var(--ink);
    font-weight: 600
}

/* PRODUCT — Leadership OS */
.product {
    background: var(--forest);
    color: var(--ink-soft);
    position: relative;
    overflow: hidden
}

.product::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(50% 60% at 85% 10%, rgba(183, 138, 63, .18), transparent 60%)
}

.product .wrap {
    position: relative;
    z-index: 1
}

.product .eyebrow {
    color: var(--gold)
}

.product .eyebrow::before {
    background: var(--gold)
}

.product h2 {
    font-size: clamp(2.2rem, 4.4vw, 3.3rem);
    color: #8e703d;
    margin-bottom: 20px;
    max-width: 16ch
}

.product .plead {
    font-size: 1.15rem;
    color: var(--ink-soft);
    max-width: 60ch;
    margin-bottom: 56px;
    font-weight: 350
}

.os-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
    margin-bottom: 56px
}

.os-card {
    background: rgba(39, 76, 58, .05);
    border: 1px solid rgba(39, 76, 58, .14);
    border-radius: 16px;
    padding: 28px 24px;
    transition: .4s
}

.os-card:hover {
    background: rgba(39, 76, 58, .09);
    transform: translateY(-4px)
}

.os-card .k {
    font-family: 'Fraunces', serif;
    font-size: 1.15rem;
    color: var(--forest-text);
    margin-bottom: 10px
}

.os-card .k span {
    color: var(--gold)
}

.os-card p {
    font-size: .9rem;
    color: var(--ink-soft)
}

.os-foot {
    display: flex;
    gap: 20px;
    align-items: center;
    flex-wrap: wrap;
    padding-top: 44px;
    border-top: 1px solid rgba(39, 76, 58, .16)
}

.os-foot p {
    font-family: 'Fraunces', serif;
    font-style: italic;
    font-size: 1.25rem;
    color: var(--forest-text);
    flex: 1;
    min-width: 260px
}

/* ECOSYSTEM */
.eco-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px
}

.eco-card {
    border: 1px solid var(--line);
    border-radius: 16px;
    padding: 26px 20px;
    background: var(--cream);
    transition: .4s;
    text-align: center
}

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

.eco-card .ei {
    width: 46px;
    height: 46px;
    border-radius: 12px;
    background: rgba(239, 227, 198, .6);
    display: grid;
    place-items: center;
    margin: 0 auto 16px;
    color: var(--forest-text)
}

.eco-card h3 {
    font-size: 1.05rem;
    margin-bottom: 8px
}

.eco-card p {
    font-size: .85rem;
    color: var(--muted)
}

.eco-note {
    text-align: center;
    margin-top: 46px;
    font-size: 1.05rem;
    color: var(--ink-soft);
    max-width: 640px;
    margin-left: auto;
    margin-right: auto
}

.eco-note b {
    color: var(--forest-text);
    font-family: 'Fraunces', serif;
    font-weight: 600
}

/* LEGACY / CTA */
.legacy {
    background: linear-gradient(160deg, var(--paper-2), var(--paper));
    text-align: center
}

.legacy .wrap {
    max-width: 820px
}

.legacy .eyebrow {
    margin-left: auto;
    margin-right: auto
}

.legacy h2 {
    font-size: clamp(2.1rem, 4.5vw, 3.2rem);
    margin-bottom: 26px
}

.legacy .ifline {
    font-family: 'Fraunces', serif;
    font-style: italic;
    font-size: 1.25rem;
    color: var(--forest-text);
    margin: 0 auto 12px;
    max-width: 640px;
    line-height: 1.5
}

.legacy p.body {
    font-size: 1.1rem;
    color: var(--ink-soft);
    max-width: 60ch;
    margin: 30px auto 44px;
    font-weight: 350
}

.legacy-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap
}

/* FOOTER */
footer {
    background: var(--ink);
    color: #b9c0c4;
    padding: 70px 0 40px
}

.foot-top {
    display: flex;
    justify-content: space-between;
    gap: 40px;
    flex-wrap: wrap;
    padding-bottom: 44px;
    border-bottom: 1px solid rgba(255, 255, 255, .1)
}

.foot-brand {
    max-width: 340px
}

.foot-brand .brand {
    color: #fff;
    margin-bottom: 16px
}

.foot-brand p {
    font-size: .92rem;
    color: #8b9498
}

.foot-cols {
    display: flex;
    gap: 64px;
    flex-wrap: wrap
}

.foot-col h4 {
    font-size: .75rem;
    letter-spacing: .16em;
    text-transform: uppercase;
    color: #6f787c;
    margin-bottom: 16px;
    font-weight: 600;
    font-family: 'Inter', sans-serif
}

.foot-col a {
    display: block;
    color: #b9c0c4;
    text-decoration: none;
    font-size: .92rem;
    margin-bottom: 11px;
    transition: .25s
}

.foot-col a:hover {
    color: #fff
}

.foot-bottom {
    display: flex;
    justify-content: space-between;
    gap: 20px;
    flex-wrap: wrap;
    padding-top: 28px;
    font-size: .82rem;
    color: #6f787c
}

.reveal {
    opacity: 0;
    transform: translateY(26px);
    transition: .9s cubic-bezier(.2, .7, .3, 1)
}

.reveal.in {
    opacity: 1;
    transform: none
}

@media(max-width:960px) {

    .hero-grid,
    .belief-grid {
        grid-template-columns: 1fr;
        gap: 44px
    }

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

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

    .prob-grid {
        grid-template-columns: 1fr
    }

    .nav-links {
        display: none
    }

    .menu-btn {
        display: flex
    }

    .nav-links.open {
        display: flex;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        flex-direction: column;
        background: var(--cream);
        padding: 24px 28px;
        gap: 18px;
        border-bottom: 1px solid var(--line)
    }
}

@media(max-width:560px) {
    section {
        padding: 80px 0
    }

    .hero {
        padding: 150px 0 80px
    }

    .os-grid,
    .eco-grid {
        grid-template-columns: 1fr
    }

    .foot-top {
        flex-direction: column
    }
}