/* XPLIGHT — frosted glass / cool cyan-silver daylight */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    --xp-sky-top: #e4eef3;
    --xp-sky-mid: #eef5f8;
    --xp-sky-low: #f6f9fb;
    --xp-ink: #1a2a32;
    --xp-ink-soft: #2d4450;
    --xp-muted: rgba(26, 42, 50, 0.62);
    --xp-silver: #b8c9d2;
    --xp-cyan: #3a9aaa;
    --xp-cyan-bright: #5ec4d4;
    --xp-cyan-dim: rgba(58, 154, 170, 0.14);
    --xp-glass: rgba(255, 255, 255, 0.52);
    --xp-glass-edge: rgba(255, 255, 255, 0.85);
    --xp-glass-shadow: rgba(45, 90, 108, 0.08);
    --xp-line: rgba(58, 154, 170, 0.18);
    --xp-font-display: "Instrument Serif", Georgia, "Times New Roman", serif;
    --xp-font-body: "IBM Plex Sans", system-ui, sans-serif;
    --xp-radius: 1.125rem;
    --xp-radius-lg: 1.75rem;
    --xp-ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

html {
    scroll-behavior: smooth;
}

.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

body.xp {
    font-family: var(--xp-font-body);
    font-weight: 400;
    color: var(--xp-ink);
    background: linear-gradient(168deg, var(--xp-sky-top) 0%, var(--xp-sky-mid) 42%, var(--xp-sky-low) 100%);
    line-height: 1.6;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    overflow-x: hidden;
}

/* Atmospheric layers */
.xp-atmo {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    overflow: hidden;
}

.xp-atmo__wash {
    position: absolute;
    inset: -20%;
    background:
        radial-gradient(ellipse 70% 50% at 15% 20%, rgba(94, 196, 212, 0.22), transparent 55%),
        radial-gradient(ellipse 60% 45% at 88% 35%, rgba(184, 201, 210, 0.45), transparent 50%),
        radial-gradient(ellipse 50% 40% at 50% 95%, rgba(58, 154, 170, 0.12), transparent 45%);
}

.xp-atmo__grid {
    position: absolute;
    inset: 0;
    opacity: 0.35;
    background-image:
        linear-gradient(rgba(58, 154, 170, 0.06) 1px, transparent 1px),
        linear-gradient(90deg, rgba(58, 154, 170, 0.06) 1px, transparent 1px);
    background-size: 56px 56px;
    mask-image: radial-gradient(ellipse 90% 70% at 50% 0%, black 0%, transparent 75%);
}

.xp-atmo__sheen {
    position: absolute;
    inset: 0;
    background: linear-gradient(115deg, transparent 40%, rgba(255, 255, 255, 0.5) 48%, rgba(255, 255, 255, 0.08) 52%, transparent 60%);
    opacity: 0.4;
}

.xp-atmo__grain {
    position: absolute;
    inset: 0;
    opacity: 0.035;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

.xp-shell {
    position: relative;
    z-index: 1;
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 clamp(1rem, 4vw, 2rem) 3.5rem;
}

/* Header */
.xp-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 1rem;
    margin: 0 calc(-1 * clamp(1rem, 4vw, 2rem));
    padding: 0.9rem clamp(1rem, 4vw, 2rem);
    position: sticky;
    top: 0;
    z-index: 30;
    background: rgba(246, 249, 251, 0.72);
    backdrop-filter: blur(18px) saturate(160%);
    -webkit-backdrop-filter: blur(18px) saturate(160%);
    border-bottom: 1px solid var(--xp-line);
    box-shadow: 0 1px 0 rgba(255, 255, 255, 0.9) inset;
}

.xp-logo {
    font-family: var(--xp-font-display);
    font-weight: 400;
    font-size: clamp(1.35rem, 3.2vw, 1.65rem);
    letter-spacing: 0.02em;
    color: var(--xp-ink);
    text-decoration: none;
    display: inline-flex;
    align-items: baseline;
    gap: 0.35rem;
}

.xp-logo__mark {
    width: 0.42em;
    height: 0.42em;
    border-radius: 2px;
    background: linear-gradient(135deg, var(--xp-cyan-bright), var(--xp-cyan));
    box-shadow: 0 0 0 2px rgba(255, 255, 255, 0.9), 0 4px 14px rgba(58, 154, 170, 0.35);
    transform: rotate(45deg) translateY(-0.05em);
}

.xp-logo__word {
    font-style: italic;
}

.xp-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 0.35rem;
    justify-content: flex-end;
}

.xp-nav a {
    color: var(--xp-muted);
    text-decoration: none;
    font-size: 0.8125rem;
    font-weight: 500;
    padding: 0.45rem 0.85rem;
    border-radius: 999px;
    border: 1px solid transparent;
    transition: color 0.2s var(--xp-ease), border-color 0.2s var(--xp-ease), background 0.2s var(--xp-ease);
}

.xp-nav a:hover {
    color: var(--xp-ink);
    border-color: var(--xp-line);
    background: var(--xp-glass);
}

.xp-nav a.xp-nav__active {
    color: var(--xp-ink-soft);
    border-color: rgba(58, 154, 170, 0.35);
    background: var(--xp-cyan-dim);
}

/* Glass panel utility */
.xp-panel {
    background: var(--xp-glass);
    backdrop-filter: blur(22px) saturate(150%);
    -webkit-backdrop-filter: blur(22px) saturate(150%);
    border: 1px solid var(--xp-glass-edge);
    border-radius: var(--xp-radius-lg);
    box-shadow:
        0 4px 24px var(--xp-glass-shadow),
        0 1px 0 rgba(255, 255, 255, 0.95) inset;
}

/* Hero */
.xp-hero {
    display: grid;
    gap: clamp(2rem, 5vw, 3rem);
    padding: clamp(2.25rem, 6vw, 4rem) 0 clamp(2.5rem, 7vw, 4.5rem);
    align-items: center;
}

@media (min-width: 880px) {
    .xp-hero {
        grid-template-columns: 1.05fr 0.95fr;
    }
}

.xp-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.6875rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    color: var(--xp-cyan);
    margin-bottom: 1rem;
}

.xp-eyebrow::before {
    content: "";
    width: 22px;
    height: 1px;
    background: linear-gradient(90deg, var(--xp-cyan-bright), transparent);
}

.xp-hero__title {
    font-family: var(--xp-font-display);
    font-weight: 400;
    font-size: clamp(2.35rem, 6.5vw, 3.65rem);
    line-height: 1.05;
    letter-spacing: -0.02em;
    color: var(--xp-ink);
    margin-bottom: 1rem;
}

.xp-hero__title em {
    font-style: italic;
    color: var(--xp-cyan);
}

.xp-hero__lead {
    font-size: clamp(1rem, 2.1vw, 1.15rem);
    color: var(--xp-muted);
    max-width: 36ch;
    margin-bottom: 1.5rem;
}

.xp-hero__chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
}

.xp-chip {
    font-size: 0.78rem;
    font-weight: 500;
    padding: 0.4rem 0.85rem;
    border-radius: 999px;
    border: 1px solid var(--xp-line);
    background: rgba(255, 255, 255, 0.55);
    color: var(--xp-ink-soft);
}

/* Prism stack visual */
.xp-prism {
    position: relative;
    min-height: 300px;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
}

.xp-prism__plate {
    position: absolute;
    width: min(100%, 280px);
    aspect-ratio: 4 / 3;
    border-radius: var(--xp-radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.9);
    background: linear-gradient(145deg, rgba(255, 255, 255, 0.65) 0%, rgba(228, 238, 243, 0.45) 100%);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    box-shadow: 0 20px 50px var(--xp-glass-shadow);
}

.xp-prism__plate--a {
    transform: translate(-8%, -6%) rotate(-6deg);
    z-index: 1;
    background: linear-gradient(160deg, rgba(255, 255, 255, 0.75), rgba(184, 201, 210, 0.25));
}

.xp-prism__plate--b {
    transform: translate(6%, 4%) rotate(4deg);
    z-index: 2;
    border-color: rgba(94, 196, 212, 0.35);
}

.xp-prism__plate--c {
    transform: translate(-2%, 14%) rotate(-2deg);
    z-index: 3;
    width: min(100%, 260px);
    background: linear-gradient(200deg, rgba(94, 196, 212, 0.18), rgba(255, 255, 255, 0.5));
}

.xp-prism__core {
    position: relative;
    z-index: 4;
    width: min(100%, 220px);
    padding: 1.5rem 1.35rem;
    text-align: center;
    border-radius: var(--xp-radius);
}

.xp-prism__core-label {
    font-size: 0.65rem;
    text-transform: uppercase;
    letter-spacing: 0.2em;
    color: var(--xp-muted);
    margin-bottom: 0.35rem;
}

.xp-prism__core-val {
    font-family: var(--xp-font-display);
    font-size: 2.35rem;
    font-style: italic;
    color: var(--xp-cyan);
    line-height: 1;
}

.xp-prism__core-hint {
    margin-top: 0.75rem;
    font-size: 0.8rem;
    color: var(--xp-muted);
}

/* Ribbon */
.xp-ribbon {
    margin: 0 calc(-1 * clamp(1rem, 4vw, 2rem)) 2.5rem;
    padding: 0.85rem 0;
    border-block: 1px solid var(--xp-line);
    background: rgba(255, 255, 255, 0.35);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    overflow: hidden;
}

.xp-ribbon__track {
    display: flex;
    width: max-content;
    gap: 2.5rem;
    animation: xp-marquee 32s linear infinite;
}

@keyframes xp-marquee {
    to {
        transform: translateX(-50%);
    }
}

.xp-ribbon__track span {
    font-family: var(--xp-font-display);
    font-size: clamp(0.95rem, 2.2vw, 1.1rem);
    font-style: italic;
    color: rgba(26, 42, 50, 0.38);
    white-space: nowrap;
}

.xp-ribbon__track strong {
    color: var(--xp-cyan);
    font-weight: 600;
    font-style: normal;
    font-family: var(--xp-font-body);
}

/* Triad section */
.xp-triad {
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.xp-triad__head {
    max-width: 38ch;
    margin-bottom: 1.75rem;
}

.xp-triad__head h2 {
    font-family: var(--xp-font-display);
    font-size: clamp(1.65rem, 3.8vw, 2.25rem);
    font-weight: 400;
    font-style: italic;
    letter-spacing: -0.02em;
    margin-bottom: 0.5rem;
}

.xp-triad__head p {
    color: var(--xp-muted);
    font-size: 1.02rem;
}

.xp-triad__grid {
    display: grid;
    gap: 1rem;
    grid-template-columns: 1fr;
}

@media (min-width: 720px) {
    .xp-triad__grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

.xp-triad__card {
    padding: 1.5rem 1.4rem;
    position: relative;
    overflow: hidden;
}

.xp-triad__card::after {
    content: "";
    position: absolute;
    top: 0;
    right: 0;
    width: 80px;
    height: 80px;
    background: radial-gradient(circle at 100% 0%, rgba(94, 196, 212, 0.2), transparent 70%);
    pointer-events: none;
}

.xp-triad__icon {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--xp-cyan-dim);
    border: 1px solid var(--xp-line);
    margin-bottom: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--xp-cyan);
}

.xp-triad__card h3 {
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 0.45rem;
    color: var(--xp-ink);
}

.xp-triad__card p {
    font-size: 0.92rem;
    color: var(--xp-muted);
}

/* Split feature rows */
.xp-flow {
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
}

.xp-flow__title {
    font-family: var(--xp-font-display);
    font-size: clamp(1.65rem, 3.8vw, 2.15rem);
    font-style: italic;
    margin-bottom: 1.75rem;
    text-align: center;
}

.xp-flow__list {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.xp-flow__row {
    display: grid;
    gap: 1.25rem;
    padding: 1.35rem 1.5rem;
    align-items: center;
}

@media (min-width: 700px) {
    .xp-flow__row {
        grid-template-columns: auto 1fr;
    }
}

.xp-flow__step {
    font-family: var(--xp-font-display);
    font-size: 1.75rem;
    font-style: italic;
    color: var(--xp-silver);
    min-width: 2.5ch;
}

.xp-flow__row h3 {
    font-size: 1.08rem;
    font-weight: 600;
    margin-bottom: 0.35rem;
}

.xp-flow__row p {
    font-size: 0.95rem;
    color: var(--xp-muted);
}

/* Quote band */
.xp-glowband {
    margin-bottom: clamp(2.5rem, 6vw, 4rem);
    padding: 2rem 1.75rem;
    text-align: center;
    position: relative;
}

.xp-glowband::before {
    content: "";
    position: absolute;
    inset: 20% 10%;
    background: radial-gradient(ellipse at 50% 50%, rgba(94, 196, 212, 0.15), transparent 65%);
    pointer-events: none;
}

.xp-glowband blockquote {
    font-family: var(--xp-font-display);
    font-size: clamp(1.25rem, 3vw, 1.65rem);
    font-style: italic;
    line-height: 1.35;
    color: var(--xp-ink-soft);
    position: relative;
    max-width: 32ch;
    margin: 0 auto 0.75rem;
}

.xp-glowband cite {
    font-size: 0.85rem;
    font-style: normal;
    color: var(--xp-muted);
    position: relative;
}

/* Honest box */
.xp-honest {
    margin-bottom: 2.5rem;
    padding: 1.75rem 1.5rem;
    border-left: 3px solid var(--xp-cyan-bright);
    border-radius: 0 var(--xp-radius) var(--xp-radius) 0;
}

.xp-honest h2 {
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
}

.xp-honest p {
    font-size: 0.95rem;
    color: var(--xp-muted);
    max-width: 58ch;
}

/* CTA */
.xp-cta {
    text-align: center;
    padding: 2.75rem 1.5rem;
    position: relative;
    overflow: hidden;
}

.xp-cta::after {
    content: "";
    position: absolute;
    inset: -30%;
    background: radial-gradient(circle at 50% 0%, rgba(94, 196, 212, 0.12), transparent 50%);
    pointer-events: none;
}

.xp-cta h2 {
    font-family: var(--xp-font-display);
    font-size: clamp(1.75rem, 4vw, 2.35rem);
    font-style: italic;
    position: relative;
    margin-bottom: 0.5rem;
}

.xp-cta__sub {
    color: var(--xp-muted);
    margin-bottom: 0.25rem;
    position: relative;
    font-size: 1.02rem;
}

.xp-cta__tag {
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--xp-cyan);
    margin-bottom: 1.5rem;
    position: relative;
}

.xp-cta__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.6rem;
    padding: 0.95rem 1.65rem;
    border-radius: 999px;
    border: 1px solid rgba(58, 154, 170, 0.4);
    background: linear-gradient(180deg, #fff 0%, #e8f4f6 100%);
    color: var(--xp-ink);
    font-family: var(--xp-font-body);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    box-shadow: 0 8px 28px rgba(58, 154, 170, 0.2), 0 1px 0 #fff inset;
    transition: transform 0.2s var(--xp-ease), box-shadow 0.2s var(--xp-ease);
    position: relative;
}

.xp-cta__btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 36px rgba(58, 154, 170, 0.28), 0 1px 0 #fff inset;
}

.xp-cta__btn svg {
    width: 22px;
    height: 22px;
}

/* Footer */
.xp-footer {
    margin-top: 2.5rem;
    padding-top: 1.75rem;
    border-top: 1px solid var(--xp-line);
    text-align: center;
}

.xp-footer__links {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 0.5rem 1.25rem;
    margin-bottom: 0.65rem;
}

.xp-footer__links a {
    color: var(--xp-muted);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
}

.xp-footer__links a:hover {
    color: var(--xp-cyan);
}

.xp-footer__sep {
    color: var(--xp-silver);
    user-select: none;
}

.xp-footer__copy {
    font-size: 0.75rem;
    color: rgba(26, 42, 50, 0.42);
}

/* Legal pages */
body.xp-legal .xp-shell {
    max-width: 760px;
}

.xp-legal__band {
    height: 6px;
    margin: 0 0 1.5rem;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--xp-cyan-bright), var(--xp-silver), var(--xp-cyan));
    opacity: 0.55;
}

.xp-legal-main {
    padding: 2rem clamp(1.15rem, 3vw, 1.85rem) 2.25rem;
    border-radius: var(--xp-radius-lg);
}

.xp-legal-hero {
    margin-bottom: 2rem;
    padding-bottom: 1.75rem;
    border-bottom: 1px solid var(--xp-line);
}

.xp-legal-hero__label {
    font-size: 0.65rem;
    font-weight: 600;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--xp-cyan);
    margin-bottom: 0.5rem;
}

.xp-legal-hero h1 {
    font-family: var(--xp-font-display);
    font-size: clamp(1.85rem, 4.5vw, 2.5rem);
    font-weight: 400;
    font-style: italic;
    line-height: 1.1;
    color: var(--xp-ink);
}

.xp-legal-hero__meta {
    margin-top: 0.75rem;
    font-size: 0.9rem;
    color: var(--xp-muted);
}

.xp-legal__section {
    margin-bottom: 1.75rem;
    padding-bottom: 1.75rem;
    border-bottom: 1px solid rgba(58, 154, 170, 0.12);
}

.xp-legal__section:last-of-type {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.xp-legal__section h2 {
    font-family: var(--xp-font-body);
    font-size: 1.05rem;
    font-weight: 600;
    color: var(--xp-ink);
    margin-bottom: 0.75rem;
}

.xp-legal__section h3 {
    font-size: 0.95rem;
    font-weight: 600;
    margin: 1rem 0 0.4rem;
    color: var(--xp-ink-soft);
}

.xp-legal__section p,
.xp-legal__section li {
    font-size: 0.9375rem;
    color: var(--xp-muted);
    line-height: 1.72;
    margin-bottom: 0.65rem;
}

.xp-legal__section p:last-child {
    margin-bottom: 0;
}

.xp-legal__section ul {
    margin: 0.5rem 0 0.65rem 1.15rem;
}

.xp-legal__section li {
    margin-bottom: 0.4rem;
}

.xp-legal__caps {
    font-size: 0.78rem;
    letter-spacing: 0.03em;
    line-height: 1.7;
    color: var(--xp-ink-soft);
}

@media (max-width: 600px) {
    .xp-prism {
        min-height: 260px;
    }

    .xp-legal-main {
        padding: 1.35rem 1.1rem 1.65rem;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }
}