/* assets/main.css */
:root {
    --ground: #16110d;
    --raised: #241b14;
    --tint: #2e231a;
    --border: #3a2c22;
    --chrome: #16110d;
    --chrome-border: #2a2019;
    --text-primary: #fff3e4;
    --text-secondary: #c4ac94;
    --tab-inactive: #9a8672;
    --action: #ff8a1f;
    --on-action: #1a1410;
    --reward: #ffb627;
    --reward-track: #3a2c22;
    --success: #2dd4a7;
    --danger: #f08c82;
    --neutral: #c4ac94;
    --max-width: 1160px;
    --card-radius: 20px;
    --section-radius: 32px;
}

* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    background: var(--ground);
}

body {
    margin: 0;
    background: var(--ground);
    color: var(--text-primary);
    font-family:
        Inter,
        ui-sans-serif,
        -apple-system,
        BlinkMacSystemFont,
        "Segoe UI",
        sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

a {
    color: inherit;
}

button,
a {
    -webkit-tap-highlight-color: transparent;
}

.site-shell {
    min-height: 100vh;
    overflow: hidden;
    background:
        radial-gradient(
            circle at 82% 8%,
            rgba(255, 138, 31, 0.085),
            transparent 29rem
        ),
        var(--ground);
}

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

.site-header {
    position: relative;
    z-index: 20;
    border-bottom: 1px solid rgba(58, 44, 34, 0.64);
    background: rgba(22, 17, 13, 0.88);
    backdrop-filter: blur(20px);
}

.nav {
    display: flex;
    min-height: 78px;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 12px;
    color: var(--text-primary);
    font-size: 20px;
    font-weight: 650;
    letter-spacing: -0.035em;
    text-decoration: none;
}

.brand strong,
.footer-brand strong {
    color: var(--action);
    font-weight: 850;
}

.brand-mark {
    position: relative;
    display: inline-block;
    width: 38px;
    height: 38px;
}

.brand-head {
    position: absolute;
    inset: 8px 5px 3px;
    border-radius: 45% 45% 50% 50%;
    background: var(--reward);
}

.brand-ear {
    position: absolute;
    top: 3px;
    width: 14px;
    height: 15px;
    border-radius: 70% 70% 30% 30%;
    background: var(--reward);
}

.brand-ear-left {
    left: 4px;
    transform: rotate(-25deg);
}

.brand-ear-right {
    right: 4px;
    transform: rotate(25deg);
}

.brand-stripe {
    position: absolute;
    z-index: 2;
    width: 4px;
    height: 15px;
    border-radius: 999px;
    background: var(--ground);
    transform-origin: center;
}

.brand-stripe-one {
    top: 11px;
    left: 11px;
    transform: rotate(-15deg);
}

.brand-stripe-two {
    top: 9px;
    left: 17px;
}

.brand-stripe-three {
    top: 11px;
    left: 23px;
    transform: rotate(15deg);
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 27px;
}

.nav-links > a:not(.nav-cta) {
    color: var(--text-secondary);
    font-size: 14px;
    font-weight: 600;
    text-decoration: none;
    transition: color 140ms ease;
}

.nav-links > a:not(.nav-cta):hover {
    color: var(--text-primary);
}

.nav-cta {
    min-height: 42px;
    display: inline-flex;
    align-items: center;
    padding: 0 18px;
    border-radius: 12px;
    background: var(--action);
    color: var(--on-action);
    font-size: 14px;
    font-weight: 800;
    text-decoration: none;
}

.hero-section {
    padding: 94px 0 120px;
}

.hero-grid {
    display: grid;
    grid-template-columns: minmax(0, 1.04fr) minmax(370px, 0.96fr);
    align-items: center;
    gap: 84px;
}

.hero-copy {
    max-width: 690px;
}

.eyebrow {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 24px;
    color: var(--reward);
    font-size: 13px;
    font-weight: 800;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.eyebrow-stripe {
    display: block;
    width: 25px;
    height: 6px;
    border-radius: 999px;
    background: var(--action);
    transform: rotate(-18deg);
}

.hero-copy h1 {
    max-width: 730px;
    margin: 0;
    font-size: clamp(54px, 6.2vw, 84px);
    font-weight: 820;
    line-height: 0.98;
    letter-spacing: -0.065em;
}

.hero-copy h1 span {
    color: var(--reward);
}

.hero-lead {
    max-width: 650px;
    margin: 31px 0 0;
    color: var(--text-secondary);
    font-size: 20px;
    line-height: 1.65;
}

.hero-lead strong {
    color: var(--text-primary);
}

.hero-actions,
.final-actions {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-top: 35px;
}

.button {
    display: inline-flex;
    min-height: 52px;
    align-items: center;
    justify-content: center;
    padding: 0 23px;
    border-radius: 12px;
    font-size: 15px;
    font-weight: 780;
    text-decoration: none;
    transition:
        transform 150ms ease,
        background-color 150ms ease,
        border-color 150ms ease;
}

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

.button-primary {
    background: var(--action);
    color: var(--on-action);
    box-shadow: 0 14px 36px rgba(255, 138, 31, 0.16);
}

.button-secondary {
    border: 1px solid var(--border);
    background: var(--raised);
    color: var(--text-primary);
}

.button-secondary:hover {
    border-color: var(--tab-inactive);
}

.privacy-note {
    display: flex;
    align-items: center;
    gap: 9px;
    margin-top: 23px;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

.privacy-dot {
    width: 8px;
    height: 8px;
    flex: none;
    border-radius: 50%;
    background: var(--success);
}

.phone-stage {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.phone-glow {
    position: absolute;
    top: 9%;
    right: -3%;
    bottom: 17%;
    left: -3%;
    border-radius: 45%;
    background: rgba(255, 138, 31, 0.12);
    filter: blur(60px);
}

.phone {
    position: relative;
    z-index: 2;
    width: min(392px, 100%);
    padding: 10px;
    border: 1px solid #4a4038;
    border-radius: 50px;
    background: #070605;
    box-shadow:
        0 52px 110px rgba(0, 0, 0, 0.55),
        0 4px 16px rgba(0, 0, 0, 0.5);
}

.phone-island {
    position: absolute;
    z-index: 4;
    top: 21px;
    left: 50%;
    width: 104px;
    height: 27px;
    border-radius: 999px;
    background: #070605;
    transform: translateX(-50%);
}

.phone-screen {
    position: relative;
    min-height: 708px;
    overflow: hidden;
    border-radius: 40px;
    background: var(--ground);
    padding: 63px 17px 86px;
}

.phone-header {
    display: flex;
    min-height: 38px;
    align-items: center;
    border-bottom: 1px solid var(--chrome-border);
}

.phone-header-title {
    color: var(--text-primary);
    font-size: 14px;
    font-weight: 700;
}

.app-tiger {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 5px;
    padding: 15px 0 8px;
}

.app-tiger svg {
    width: 128px;
    height: 128px;
}

.tiger-fill {
    fill: var(--reward);
    opacity: 0.68;
}

.tiger-stripe {
    fill: var(--ground);
}

.tiger-stripe-earned {
    opacity: 0.95;
}

.tiger-stripe-unearned {
    opacity: 0.14;
}

.app-tiger p {
    margin: -2px 0 0;
    color: var(--text-secondary);
    font-size: 10px;
}

.phone-section-heading {
    padding: 2px 0 10px;
}

.phone-section-heading h3 {
    margin: 0;
    color: var(--text-primary);
    font-size: 22px;
    letter-spacing: -0.035em;
}

.phone-section-heading p {
    margin: 4px 0 0;
    color: var(--text-secondary);
    font-size: 11px;
}

.phone-goals {
    display: grid;
    gap: 8px;
}

.app-goal-card {
    display: grid;
    gap: 11px;
    padding: 13px;
    border: 1px solid var(--border);
    border-radius: 17px;
    background: var(--raised);
}

.app-goal-copy {
    display: grid;
    gap: 3px;
}

.app-goal-copy strong {
    color: var(--text-primary);
    font-size: 12px;
    font-weight: 700;
}

.app-goal-copy span {
    color: var(--text-secondary);
    font-size: 9px;
    line-height: 1.4;
}

.app-goal-progress {
    display: grid;
    gap: 5px;
}

.app-progress-row {
    display: flex;
    justify-content: flex-end;
    color: var(--text-secondary);
    font-size: 8px;
}

.app-progress-track {
    height: 5px;
    overflow: hidden;
    border-radius: 999px;
    background: var(--reward-track);
}

.app-progress-fill {
    height: 100%;
    border-radius: inherit;
    background: var(--reward);
}

.phone-tabs {
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    min-height: 70px;
    align-items: center;
    border-top: 1px solid var(--chrome-border);
    background: var(--chrome);
}

.phone-tab {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 3px;
    color: var(--tab-inactive);
    font-size: 8px;
}

.phone-tab svg {
    width: 19px;
    height: 19px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.phone-tab-active {
    color: var(--action);
}

.phone-caption {
    position: relative;
    z-index: 3;
    display: flex;
    align-items: center;
    gap: 9px;
    margin-top: 20px;
    color: var(--text-secondary);
    font-size: 12px;
    text-align: center;
}

.caption-stripe {
    width: 17px;
    height: 5px;
    border-radius: 999px;
    background: var(--reward);
    transform: rotate(-17deg);
}

.section {
    padding: 120px 0;
    border-top: 1px solid rgba(58, 44, 34, 0.62);
}

.section-raised {
    background:
        linear-gradient(
            180deg,
            rgba(36, 27, 20, 0.94),
            rgba(36, 27, 20, 0.72)
        );
}

.section-kicker {
    margin-bottom: 18px;
    color: var(--action);
    font-size: 13px;
    font-weight: 850;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.section-title {
    max-width: 850px;
    margin: 0;
    font-size: clamp(40px, 5vw, 63px);
    line-height: 1.03;
    letter-spacing: -0.055em;
}

.section-title-small {
    font-size: clamp(36px, 4.3vw, 54px);
}

.section-lead {
    max-width: 760px;
    margin: 25px 0 0;
    color: var(--text-secondary);
    font-size: 18px;
    line-height: 1.7;
}

.problem-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 17px;
    margin-top: 57px;
}

.problem-card,
.benefit-card {
    border: 1px solid var(--border);
    border-radius: var(--card-radius);
    background: var(--raised);
}

.problem-card {
    min-height: 280px;
    padding: 27px;
}

.problem-number {
    color: var(--reward);
    font-size: 12px;
    font-weight: 800;
}

.problem-card h3 {
    margin: 57px 0 12px;
    font-size: 22px;
    line-height: 1.25;
    letter-spacing: -0.03em;
}

.problem-card p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.65;
}

.stripe-statement {
    display: grid;
    grid-template-columns: 160px minmax(0, 1fr);
    align-items: center;
    gap: 45px;
    margin-top: 82px;
    padding: 48px;
    border-radius: var(--section-radius);
    background: var(--tint);
}

.stripe-statement p {
    margin: 0;
    font-size: clamp(27px, 3.4vw, 42px);
    line-height: 1.18;
    letter-spacing: -0.04em;
}

.stripe-statement strong {
    color: var(--reward);
}

.large-stripes {
    position: relative;
    width: 130px;
    height: 100px;
}

.large-stripes span {
    position: absolute;
    width: 19px;
    border-radius: 999px;
    background: var(--action);
}

.large-stripes span:nth-child(1) {
    top: 11px;
    left: 26px;
    height: 74px;
    transform: rotate(-23deg);
}

.large-stripes span:nth-child(2) {
    top: 3px;
    left: 61px;
    height: 92px;
}

.large-stripes span:nth-child(3) {
    top: 11px;
    right: 17px;
    height: 74px;
    transform: rotate(23deg);
}

.process-layout {
    display: grid;
    grid-template-columns: 1fr 0.86fr;
    align-items: start;
    gap: 65px;
    margin-top: 62px;
}

.process-steps {
    display: grid;
}

.process-step {
    display: grid;
    grid-template-columns: 52px 1fr;
    gap: 19px;
    padding: 26px 0;
    border-bottom: 1px solid var(--border);
}

.process-number {
    display: flex;
    width: 40px;
    height: 40px;
    align-items: center;
    justify-content: center;
    border-radius: 12px;
    background: var(--tint);
    color: var(--reward);
    font-size: 11px;
    font-weight: 850;
}

.process-step h3 {
    margin: 1px 0 7px;
    font-size: 20px;
    letter-spacing: -0.028em;
}

.process-step p {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.65;
}

.process-quote {
    position: sticky;
    top: 30px;
    overflow: hidden;
    padding: 43px;
    border: 1px solid var(--border);
    border-radius: var(--section-radius);
    background: var(--ground);
}

.process-quote blockquote {
    margin: 33px 0 0;
    font-size: clamp(31px, 3.5vw, 45px);
    line-height: 1.12;
    letter-spacing: -0.045em;
}

.process-quote blockquote strong {
    color: var(--reward);
}

.process-quote p {
    margin: 25px 0 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.quote-stripes,
.final-stripes {
    display: flex;
    gap: 8px;
    align-items: center;
}

.quote-stripes span,
.final-stripes span {
    display: block;
    width: 7px;
    border-radius: 999px;
    background: var(--action);
}

.quote-stripes span:nth-child(1),
.final-stripes span:nth-child(1) {
    height: 32px;
    transform: rotate(-18deg);
}

.quote-stripes span:nth-child(2),
.final-stripes span:nth-child(2) {
    height: 38px;
}

.quote-stripes span:nth-child(3),
.final-stripes span:nth-child(3) {
    height: 32px;
    transform: rotate(18deg);
}

.benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 17px;
    margin-top: 58px;
}

.benefit-card {
    min-height: 330px;
    padding: 28px;
}

.benefit-icon {
    display: flex;
    width: 44px;
    height: 44px;
    align-items: center;
    justify-content: center;
    border-radius: 13px;
    background: var(--tint);
    color: var(--reward);
    font-size: 18px;
    font-weight: 800;
}

.benefit-before {
    margin: 37px 0 0;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.5;
}

.benefit-card h3 {
    margin: 10px 0;
    color: var(--text-primary);
    font-size: 24px;
    line-height: 1.2;
    letter-spacing: -0.035em;
}

.benefit-body {
    margin: 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.65;
}

.science-position {
    display: grid;
    grid-template-columns: minmax(240px, 0.65fr) minmax(0, 1.35fr);
    align-items: center;
    gap: 75px;
}

.milestone-number {
    color: var(--reward);
    font-size: clamp(105px, 14vw, 176px);
    font-weight: 850;
    line-height: 0.78;
    letter-spacing: -0.08em;
}

.milestone-number span {
    display: block;
    max-width: 190px;
    margin-top: 28px;
    color: var(--text-secondary);
    font-size: 13px;
    font-weight: 650;
    line-height: 1.5;
    letter-spacing: 0;
}

.science-position-copy {
    max-width: 760px;
    margin: 18px 0 0;
    color: var(--text-secondary);
    font-size: 15px;
    line-height: 1.7;
}

.evidence-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 14px;
    margin-top: 55px;
}

.evidence-card {
    display: flex;
    min-height: 290px;
    flex-direction: column;
    padding: 27px;
    border: 1px solid var(--border);
    border-radius: var(--card-radius);
    background: var(--raised);
    text-decoration: none;
    transition:
        transform 150ms ease,
        border-color 150ms ease,
        background-color 150ms ease;
}

.evidence-card:hover {
    transform: translateY(-2px);
    border-color: var(--tab-inactive);
    background: var(--tint);
}

.evidence-topic {
    color: var(--action);
    font-size: 11px;
    font-weight: 850;
    letter-spacing: 0.09em;
    text-transform: uppercase;
}

.evidence-card h3 {
    margin: 15px 0 6px;
    color: var(--text-primary);
    font-size: 19px;
    line-height: 1.35;
    letter-spacing: -0.026em;
}

.evidence-authors {
    color: var(--reward);
    font-size: 12px;
    font-weight: 650;
}

.evidence-card p {
    margin: 18px 0 0;
    color: var(--text-secondary);
    font-size: 14px;
    line-height: 1.65;
}

.evidence-link {
    margin-top: auto;
    padding-top: 23px;
    color: var(--action);
    font-size: 12px;
    font-weight: 800;
}

.evidence-disclaimer {
    max-width: 880px;
    margin-top: 34px;
    padding: 22px 25px;
    border-left: 3px solid var(--reward);
    background: var(--tint);
}

.evidence-disclaimer strong {
    color: var(--text-primary);
    font-size: 14px;
}

.evidence-disclaimer p {
    margin: 6px 0 0;
    color: var(--text-secondary);
    font-size: 13px;
    line-height: 1.65;
}

.final-section {
    padding: 112px 0;
    border-top: 1px solid var(--border);
}

.final-card {
    position: relative;
    overflow: hidden;
    padding: 72px;
    border-radius: 36px;
    background:
        radial-gradient(
            circle at 100% 0,
            rgba(255, 182, 39, 0.14),
            transparent 32rem
        ),
        var(--tint);
}

.final-kicker {
    margin: 27px 0 0;
    color: var(--action);
    font-size: 13px;
    font-weight: 850;
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.final-card h2 {
    max-width: 870px;
    margin: 16px 0 0;
    font-size: clamp(42px, 5.7vw, 72px);
    line-height: 1;
    letter-spacing: -0.06em;
}

.final-card h2 span {
    color: var(--reward);
}

.final-copy {
    max-width: 690px;
    margin: 25px 0 0;
    color: var(--text-secondary);
    font-size: 17px;
    line-height: 1.7;
}

.button-light {
    background: var(--reward);
    color: var(--on-action);
}

.button-outline {
    border: 1px solid var(--border);
    color: var(--text-primary);
}

.site-footer {
    border-top: 1px solid var(--border);
}

.footer-inner {
    display: grid;
    grid-template-columns: auto 1fr auto;
    align-items: center;
    gap: 28px;
    min-height: 104px;
    color: var(--text-secondary);
}

.footer-brand {
    color: var(--text-primary);
    font-size: 17px;
    font-weight: 650;
}

.footer-inner p {
    margin: 0;
    font-size: 12px;
}

.footer-links {
    display: flex;
    gap: 21px;
}

.footer-links a {
    color: var(--text-secondary);
    font-size: 12px;
    text-decoration: none;
}

.footer-links a:hover {
    color: var(--text-primary);
}

@media (max-width: 920px) {
    .hero-grid {
        grid-template-columns: 1fr;
        gap: 74px;
    }

    .hero-copy {
        max-width: 760px;
    }

    .phone {
        width: min(400px, 94%);
    }

    .problem-grid,
    .benefit-grid {
        grid-template-columns: 1fr;
    }

    .problem-card,
    .benefit-card {
        min-height: auto;
    }

    .problem-card h3 {
        margin-top: 37px;
    }

    .process-layout {
        grid-template-columns: 1fr;
    }

    .process-quote {
        position: static;
    }

    .science-position {
        grid-template-columns: 1fr;
        gap: 48px;
    }
}

@media (max-width: 700px) {
    .content {
        width: min(var(--max-width), calc(100% - 28px));
    }

    .nav {
        min-height: 68px;
    }

    .nav-links > a:not(.nav-cta) {
        display: none;
    }

    .nav-cta {
        min-height: 38px;
        padding-inline: 13px;
        font-size: 12px;
    }

    .hero-section {
        padding: 74px 0 89px;
    }

    .hero-copy h1 {
        font-size: clamp(49px, 14vw, 67px);
    }

    .hero-lead {
        font-size: 17px;
    }

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

    .button {
        width: 100%;
    }

    .phone {
        width: 100%;
        max-width: 390px;
    }

    .section {
        padding: 85px 0;
    }

    .section-lead {
        font-size: 16px;
    }

    .stripe-statement {
        grid-template-columns: 1fr;
        gap: 23px;
        padding: 32px 26px;
    }

    .large-stripes {
        width: 100px;
        height: 70px;
    }

    .large-stripes span:nth-child(1) {
        left: 18px;
        height: 53px;
    }

    .large-stripes span:nth-child(2) {
        left: 44px;
        height: 68px;
    }

    .large-stripes span:nth-child(3) {
        right: 10px;
        height: 53px;
    }

    .evidence-grid {
        grid-template-columns: 1fr;
    }

    .final-section {
        padding: 78px 0;
    }

    .final-card {
        padding: 48px 25px;
        border-radius: 28px;
    }

    .footer-inner {
        grid-template-columns: 1fr;
        align-items: start;
        padding: 28px 0;
    }
}

@media (prefers-reduced-motion: reduce) {
    html {
        scroll-behavior: auto;
    }

    *,
    *::before,
    *::after {
        transition: none !important;
    }
}