:root {
    --mk-ink: #0a1f24;
    --mk-ink-soft: #14343b;
    --mk-teal: #0f766e;
    --mk-teal-bright: #14b8a6;
    --mk-lime: #c8f542;
    --mk-sand: #e8f0f0;
    --mk-paper: #f3f7f6;
    --mk-muted: #5a7378;
    --mk-line: rgba(10, 31, 36, 0.12);
    --mk-display: Georgia, 'Iowan Old Style', 'Palatino Linotype', Palatino, 'Times New Roman', serif;
    --mk-sans: 'Trebuchet MS', 'Segoe UI', Candara, 'Gill Sans', sans-serif;
    --mk-ease: cubic-bezier(0.22, 1, 0.36, 1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body.marketing {
    margin: 0;
    color: var(--mk-ink);
    background: var(--mk-paper);
    font-family: var(--mk-sans);
    font-size: 1.05rem;
    line-height: 1.55;
    -webkit-font-smoothing: antialiased;
}

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

.mk-wrap {
    width: min(1120px, 92%);
    margin: 0 auto;
}

/* ——— Nav ——— */
.mk-nav {
    position: sticky;
    top: 0;
    z-index: 40;
    background: rgba(243, 247, 246, 0.88);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid transparent;
    transition: border-color 0.3s var(--mk-ease), background 0.3s var(--mk-ease);
}

.mk-nav.is-scrolled {
    border-bottom-color: var(--mk-line);
    background: rgba(243, 247, 246, 0.96);
}

.mk-nav__inner {
    width: min(1120px, 92%);
    margin: 0 auto;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: 1rem 0;
}

.mk-logo {
    font-family: var(--mk-display);
    font-size: 1.55rem;
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--mk-ink);
}

.mk-logo--footer {
    font-size: 1.35rem;
}

.mk-nav__links {
    display: none;
    align-items: center;
    gap: 1.5rem;
}

.mk-nav__links a:not(.mk-btn) {
    font-size: 0.95rem;
    color: var(--mk-ink-soft);
}

.mk-nav__links a:not(.mk-btn):hover {
    color: var(--mk-teal);
}

.mk-nav__toggle {
    display: inline-flex;
    flex-direction: column;
    justify-content: center;
    gap: 6px;
    width: 2.5rem;
    height: 2.5rem;
    padding: 0;
    border: 0;
    background: transparent;
    cursor: pointer;
}

.mk-nav__toggle span {
    display: block;
    width: 1.35rem;
    height: 2px;
    background: var(--mk-ink);
    transition: transform 0.25s var(--mk-ease);
}

.mk-nav__toggle[aria-expanded="true"] span:first-child {
    transform: translateY(4px) rotate(45deg);
}

.mk-nav__toggle[aria-expanded="true"] span:last-child {
    transform: translateY(-4px) rotate(-45deg);
}

.mk-nav__drawer {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    padding: 0 4% 1.25rem;
    border-bottom: 1px solid var(--mk-line);
}

.mk-nav__drawer[hidden] {
    display: none;
}

.mk-nav__drawer a {
    font-size: 1.05rem;
    padding: 0.35rem 0;
}

/* ——— Buttons ——— */
.mk-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.55rem 1.1rem;
    border-radius: 4px;
    font-family: var(--mk-sans);
    font-size: 0.95rem;
    font-weight: 600;
    border: 1.5px solid transparent;
    cursor: pointer;
    transition: background 0.2s var(--mk-ease), color 0.2s var(--mk-ease), border-color 0.2s var(--mk-ease), transform 0.2s var(--mk-ease);
}

.mk-btn--lg {
    padding: 0.85rem 1.45rem;
    font-size: 1rem;
}

.mk-btn--solid {
    background: var(--mk-ink);
    color: var(--mk-lime);
    border-color: var(--mk-ink);
}

.mk-btn--solid:hover {
    background: var(--mk-ink-soft);
    transform: translateY(-1px);
}

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

.mk-btn--ghost:hover {
    border-color: var(--mk-ink);
}

/* ——— Hero ——— */
.mk-hero {
    position: relative;
    min-height: calc(100vh - 4.5rem);
    display: flex;
    align-items: stretch;
    overflow: hidden;
}

.mk-hero__atmosphere {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(ellipse 70% 55% at 78% 42%, rgba(20, 184, 166, 0.18), transparent 60%),
        radial-gradient(ellipse 50% 40% at 12% 80%, rgba(200, 245, 66, 0.12), transparent 55%),
        linear-gradient(165deg, #eef5f4 0%, #dceae8 45%, #c5ddd9 100%);
    z-index: 0;
}

.mk-hero__atmosphere::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: repeating-linear-gradient(
        -18deg,
        transparent,
        transparent 28px,
        rgba(10, 31, 36, 0.03) 28px,
        rgba(10, 31, 36, 0.03) 29px
    );
    pointer-events: none;
}

.mk-hero__grid {
    position: relative;
    z-index: 1;
    width: min(1120px, 92%);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 1fr;
    gap: 2.5rem;
    align-items: center;
    padding: 2.5rem 0 3.5rem;
}

.mk-brand {
    margin: 0 0 0.85rem;
    font-family: var(--mk-display);
    font-size: clamp(3.2rem, 11vw, 5.75rem);
    font-weight: 700;
    line-height: 0.92;
    letter-spacing: -0.045em;
    color: var(--mk-ink);
    opacity: 0;
    transform: translateY(18px);
    animation: mk-rise 0.9s var(--mk-ease) 0.1s forwards;
}

.mk-hero__headline {
    margin: 0 0 1rem;
    max-width: 18ch;
    font-family: var(--mk-display);
    font-size: clamp(1.65rem, 4.2vw, 2.35rem);
    font-weight: 400;
    line-height: 1.2;
    letter-spacing: -0.02em;
    color: var(--mk-ink-soft);
    opacity: 0;
    transform: translateY(18px);
    animation: mk-rise 0.9s var(--mk-ease) 0.25s forwards;
}

.mk-hero__lede {
    margin: 0 0 1.75rem;
    max-width: 36ch;
    font-size: 1.08rem;
    color: var(--mk-muted);
    opacity: 0;
    transform: translateY(18px);
    animation: mk-rise 0.9s var(--mk-ease) 0.4s forwards;
}

.mk-hero__actions {
    display: flex;
    flex-wrap: wrap;
    gap: 0.75rem;
    opacity: 0;
    transform: translateY(18px);
    animation: mk-rise 0.9s var(--mk-ease) 0.55s forwards;
}

.mk-hero__visual {
    opacity: 0;
    transform: translateY(28px) scale(0.98);
    animation: mk-rise 1s var(--mk-ease) 0.45s forwards;
}

/* Device / chat mock — product visual */
.mk-device {
    width: min(100%, 420px);
    margin-left: auto;
    margin-right: auto;
    background: var(--mk-ink);
    border-radius: 18px;
    box-shadow: 0 24px 60px rgba(10, 31, 36, 0.28);
    overflow: hidden;
}

.mk-device__chrome {
    display: flex;
    align-items: center;
    gap: 0.65rem;
    padding: 0.85rem 1rem;
    background: var(--mk-ink-soft);
    color: #cde5e2;
    font-size: 0.85rem;
}

.mk-device__dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--mk-lime);
    box-shadow: 0 0 0 3px rgba(200, 245, 66, 0.25);
}

.mk-device__title {
    flex: 1;
    font-weight: 600;
}

.mk-device__live {
    font-size: 0.72rem;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: var(--mk-teal-bright);
}

.mk-device__body {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    min-height: 280px;
    padding: 1.15rem;
    background:
        linear-gradient(180deg, #0f2c32 0%, #0a1f24 100%);
}

.mk-bubble {
    max-width: 88%;
    padding: 0.75rem 0.95rem;
    border-radius: 14px;
    font-size: 0.92rem;
    line-height: 1.4;
    opacity: 0;
    transform: translateY(10px);
}

.mk-bubble.is-visible {
    opacity: 1;
    transform: translateY(0);
    transition: opacity 0.45s var(--mk-ease), transform 0.45s var(--mk-ease);
}

.mk-bubble--bot {
    align-self: flex-start;
    background: #1a454c;
    color: #e8f4f2;
    border-bottom-left-radius: 4px;
}

.mk-bubble--user {
    align-self: flex-end;
    background: var(--mk-lime);
    color: var(--mk-ink);
    border-bottom-right-radius: 4px;
}

.mk-typing {
    align-self: flex-start;
    display: inline-flex;
    gap: 5px;
    padding: 0.85rem 1rem;
    background: #1a454c;
    border-radius: 14px;
    border-bottom-left-radius: 4px;
}

.mk-typing span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--mk-teal-bright);
    animation: mk-dot 1s ease-in-out infinite;
}

.mk-typing span:nth-child(2) { animation-delay: 0.15s; }
.mk-typing span:nth-child(3) { animation-delay: 0.3s; }

@keyframes mk-rise {
    to {
        opacity: 1;
        transform: none;
    }
}

@keyframes mk-dot {
    0%, 80%, 100% { opacity: 0.35; transform: translateY(0); }
    40% { opacity: 1; transform: translateY(-3px); }
}

/* ——— Sections ——— */
.mk-section {
    padding: 5.5rem 0;
}

.mk-section__title {
    margin: 0 0 0.85rem;
    max-width: 18ch;
    font-family: var(--mk-display);
    font-size: clamp(1.85rem, 3.5vw, 2.6rem);
    font-weight: 600;
    line-height: 1.15;
    letter-spacing: -0.03em;
}

.mk-section__lede {
    margin: 0 0 2.5rem;
    max-width: 42ch;
    color: var(--mk-muted);
    font-size: 1.08rem;
}

.mk-product {
    background: #fff;
}

.mk-feature-list {
    list-style: none;
    margin: 0;
    padding: 0;
    border-top: 1px solid var(--mk-line);
}

.mk-feature-list li {
    display: grid;
    gap: 0.35rem;
    padding: 1.5rem 0;
    border-bottom: 1px solid var(--mk-line);
}

.mk-feature-list strong {
    font-family: var(--mk-display);
    font-size: 1.35rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.mk-feature-list span {
    color: var(--mk-muted);
    max-width: 48ch;
}

.mk-how {
    background:
        linear-gradient(180deg, var(--mk-paper), #e4efed);
}

.mk-steps {
    list-style: none;
    margin: 0;
    padding: 0;
    display: grid;
    gap: 2rem;
}

.mk-steps__num {
    display: block;
    margin-bottom: 0.5rem;
    font-family: var(--mk-display);
    font-size: 0.95rem;
    letter-spacing: 0.08em;
    color: var(--mk-teal);
}

.mk-steps h3 {
    margin: 0 0 0.4rem;
    font-family: var(--mk-display);
    font-size: 1.4rem;
    font-weight: 600;
    letter-spacing: -0.02em;
}

.mk-steps p {
    margin: 0;
    max-width: 34ch;
    color: var(--mk-muted);
}

.mk-speed {
    background: var(--mk-ink);
    color: #e6f2f0;
}

.mk-speed .mk-section__title {
    color: #fff;
}

.mk-speed .mk-section__lede {
    color: #9db8b6;
}

.mk-speed__inner {
    display: grid;
    gap: 2.5rem;
}

.mk-metrics {
    margin: 0;
    padding: 0;
    display: grid;
    gap: 1.75rem;
}

.mk-metrics dt {
    font-family: var(--mk-display);
    font-size: 1.3rem;
    font-weight: 600;
    color: var(--mk-lime);
    letter-spacing: -0.02em;
}

.mk-metrics dd {
    margin: 0.35rem 0 0;
    color: #9db8b6;
    max-width: 32ch;
}

.mk-cta {
    padding: 5.5rem 0;
    text-align: center;
    background:
        radial-gradient(ellipse 60% 50% at 50% 0%, rgba(20, 184, 166, 0.15), transparent 70%),
        var(--mk-paper);
}

.mk-cta__title {
    margin: 0 auto 0.85rem;
    max-width: 16ch;
    font-family: var(--mk-display);
    font-size: clamp(1.9rem, 3.8vw, 2.7rem);
    font-weight: 600;
    letter-spacing: -0.03em;
    line-height: 1.15;
}

.mk-cta__lede {
    margin: 0 auto 1.75rem;
    max-width: 38ch;
    color: var(--mk-muted);
}

.mk-cta .mk-hero__actions {
    justify-content: center;
    opacity: 1;
    transform: none;
    animation: none;
}

/* ——— Footer ——— */
.mk-footer {
    border-top: 1px solid var(--mk-line);
    padding: 2rem 0 2.5rem;
    background: #fff;
}

.mk-footer__inner {
    display: flex;
    flex-direction: column;
    gap: 0.85rem;
    align-items: flex-start;
}

.mk-footer__meta {
    margin: 0;
    color: var(--mk-muted);
    font-size: 0.92rem;
}

.mk-footer__nav {
    display: flex;
    gap: 1.25rem;
}

.mk-footer__nav a {
    color: var(--mk-ink-soft);
    font-size: 0.92rem;
}

.mk-footer__nav a:hover {
    color: var(--mk-teal);
}

/* Reveal on scroll */
.mk-reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s var(--mk-ease), transform 0.7s var(--mk-ease);
}

.mk-reveal.is-in {
    opacity: 1;
    transform: none;
}

@media (min-width: 720px) {
    .mk-nav__toggle {
        display: none;
    }

    .mk-nav__links {
        display: flex;
    }

    .mk-nav__drawer {
        display: none !important;
    }

    .mk-feature-list li {
        grid-template-columns: minmax(140px, 220px) 1fr;
        gap: 1.5rem;
        align-items: baseline;
    }

    .mk-steps {
        grid-template-columns: repeat(3, 1fr);
        gap: 2.5rem;
    }

    .mk-speed__inner {
        grid-template-columns: 1.1fr 1fr;
        align-items: start;
        gap: 4rem;
    }

    .mk-footer__inner {
        flex-direction: row;
        align-items: center;
        justify-content: space-between;
    }
}

@media (min-width: 960px) {
    .mk-hero__grid {
        grid-template-columns: 1.05fr 0.95fr;
        gap: 3rem;
        padding: 3.5rem 0 4rem;
    }

    .mk-device {
        margin-right: 0;
        width: min(100%, 440px);
    }

    .mk-hero__visual {
        justify-self: end;
    }
}

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

    .mk-brand,
    .mk-hero__headline,
    .mk-hero__lede,
    .mk-hero__actions,
    .mk-hero__visual,
    .mk-bubble,
    .mk-reveal {
        opacity: 1;
        transform: none;
        animation: none;
        transition: none;
    }

    .mk-typing span {
        animation: none;
    }
}