/* ══════════════════════════════════════════════════════════════════
   TradeProof AI — public site (Home, Features, Pricing, Blog)
   Shared header, footer and the building blocks the Features and
   Pricing pages are made of. Uses the colour/typography variables
   defined in base_public.html; nothing here is page-specific.
   ══════════════════════════════════════════════════════════════════ */

/* ── Header ───────────────────────────────────────────────────────── */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 20px;
    padding: 16px 48px;
    border-bottom: 1px solid var(--border);
    background: rgba(7, 10, 15, .92);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    transition: box-shadow .3s ease;
}

.site-header.is-scrolled {
    box-shadow: 0 8px 30px rgba(0, 0, 0, .35);
}

.site-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text);
    text-decoration: none;
    flex-shrink: 0;
}

.site-brand-name {
    font-family: var(--font-brand);
    font-weight: 800;
    font-size: 16px;
}

.site-brand-name span {
    color: var(--green);
}

.site-links {
    display: flex;
    align-items: center;
    gap: 4px;
}

.site-link {
    position: relative;
    font-size: 13.5px;
    font-weight: 500;
    color: var(--text3);
    text-decoration: none;
    padding: 7px 12px;
    border-radius: 7px;
    transition: color .18s ease, background .18s ease;
}

.site-link:hover {
    color: var(--text);
    background: var(--bg3);
}

.site-link[aria-current="page"] {
    color: var(--text);
}

.site-link[aria-current="page"]::after {
    content: "";
    position: absolute;
    left: 12px;
    right: 12px;
    bottom: -17px;
    height: 2px;
    border-radius: 2px;
    background: var(--green);
}

.site-actions {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-shrink: 0;
}

.site-btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 6px;
    font-family: var(--font);
    font-size: 13.5px;
    font-weight: 600;
    text-decoration: none;
    padding: 9px 16px;
    border-radius: 8px;
    border: 1px solid transparent;
    cursor: pointer;
    white-space: nowrap;
    /* Same hover language as the landing page CTAs (.hero-cta / #page-landing .btn):
       1px lift + soft shadow on filled buttons, a faint light sweep on all of them */
    position: relative;
    overflow: hidden;
    /* Same timing as the landing hero CTA (--transition), listed explicitly so focus rings appear instantly */
    transition: transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition), color var(--transition);
}

.site-btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -60%;
    width: 40%;
    height: 100%;
    background: linear-gradient(115deg, transparent, rgba(255, 255, 255, .16), transparent);
    transform: skewX(-20deg) translateX(-20%);
    transition: transform .6s cubic-bezier(.4, 0, .2, 1);
    pointer-events: none;
}

.site-btn:hover::after {
    transform: skewX(-20deg) translateX(320%);
}

.site-btn-primary {
    background: var(--green);
    color: #070a0f;
}

.site-btn-primary:hover {
    background: var(--green2);
    transform: translateY(-1px);
    box-shadow: 0 4px 16px var(--green-glow);
}

.site-btn-ghost {
    background: transparent;
    color: var(--text2);
    border-color: var(--border2);
}

.site-btn-ghost:hover {
    background: var(--bg3);
    color: var(--text);
}

.site-btn-elite {
    background: var(--purple);
    color: #14082e;
}

.site-btn-elite:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(167, 139, 250, .25);
}

.site-btn-primary:active,
.site-btn-elite:active {
    transform: none;
}

/* Blog article CTA (base .btn-primary already lifts on hover) — add the same sweep */
.article-cta .btn {
    position: relative;
    overflow: hidden;
    transition: transform var(--transition), background var(--transition), box-shadow var(--transition), border-color var(--transition), color var(--transition);
}

.article-cta .btn::after {
    content: "";
    position: absolute;
    top: 0;
    left: -60%;
    width: 40%;
    height: 100%;
    background: linear-gradient(115deg, transparent, rgba(255, 255, 255, .16), transparent);
    transform: skewX(-20deg) translateX(-20%);
    transition: transform .6s cubic-bezier(.4, 0, .2, 1);
    pointer-events: none;
}

.article-cta .btn:hover::after {
    transform: skewX(-20deg) translateX(320%);
}

/* Touch screens: no lift, exactly as on the landing page */
@media (max-width: 768px) {
    .site-btn,
    .article-cta .btn {
        transform: none !important;
    }
}

.site-btn-lg {
    padding: 13px 24px;
    font-size: 15px;
}

.site-menu-btn {
    display: none;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    padding: 0;
    background: none;
    border: 0;
    border-radius: 8px;
    cursor: pointer;
}

.site-menu-btn:hover {
    background: var(--bg3);
}

.site-menu-bars {
    position: relative;
    display: block;
    width: 18px;
    height: 13px;
}

.site-menu-bars span {
    position: absolute;
    left: 0;
    width: 100%;
    height: 2px;
    border-radius: 2px;
    background: var(--text2);
    transition: transform .22s ease, opacity .18s ease, top .22s ease;
}

.site-menu-bars span:nth-child(1) { top: 0; }
.site-menu-bars span:nth-child(2) { top: 5.5px; }
.site-menu-bars span:nth-child(3) { top: 11px; }
.site-menu-btn[aria-expanded="true"] .site-menu-bars span:nth-child(1) { top: 5.5px; transform: rotate(45deg); }
.site-menu-btn[aria-expanded="true"] .site-menu-bars span:nth-child(2) { opacity: 0; }
.site-menu-btn[aria-expanded="true"] .site-menu-bars span:nth-child(3) { top: 5.5px; transform: rotate(-45deg); }

.site-menu {
    display: none;
}

.site-link:focus-visible,
.site-btn:focus-visible,
.site-brand:focus-visible,
.site-menu-btn:focus-visible,
.site-menu a:focus-visible,
.site-footer a:focus-visible,
.site-footer button:focus-visible,
.mk-chipnav a:focus-visible,
.mk-faq summary:focus-visible,
.mk-shot:focus-visible {
    outline: 2px solid var(--green);
    outline-offset: 2px;
}

@media (max-width: 860px) {
    .site-header {
        padding: 14px max(20px, env(safe-area-inset-right)) 14px max(20px, env(safe-area-inset-left));
    }

    .site-links,
    .site-actions {
        display: none;
    }

    .site-menu-btn {
        display: inline-flex;
    }

    .site-menu {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        display: flex;
        flex-direction: column;
        padding: 6px 20px calc(18px + env(safe-area-inset-bottom, 0px));
        background: #070a0f;
        border-bottom: 1px solid var(--border);
        /* Fills the rest of the screen so the page (hero form, its own CTA) never
           shows through under the menu. --site-header-h is set by site.js. */
        height: calc(100vh - var(--site-header-h, 64px));
        height: calc(100dvh - var(--site-header-h, 64px));
        overflow-y: auto;
        overscroll-behavior: contain;
    }

    /* base_public sets html, body { height: 100% }, so body is one screen tall and
       the sticky header (which can only stick inside its parent) scrolled away after
       ~one screen — taking the menu button with it. Letting body grow with its
       content keeps the header, and the menu button, at the top on phones.
       min-height: 100vh (base_public) still keeps the footer at the bottom. */
    body {
        height: auto;
    }

    /* Lock on body, not html: html keeps overflow visible, so body's overflow
       propagates to the viewport — the window stops scrolling but keeps its
       position. Hiding overflow on html instead turned body (overflow-x:hidden
       in base_public) into its own scroller and lost the scroll position. */
    html.site-menu-open body {
        overflow: hidden;
    }

    .site-menu[hidden] {
        display: none;
    }

    .site-menu a {
        display: block;
        padding: 14px 6px;
        font-size: 15px;
        font-weight: 500;
        color: var(--text2);
        text-decoration: none;
        border-top: 1px solid var(--border);
    }

    .site-menu a:first-child {
        border-top: 0;
    }

    .site-menu a[aria-current="page"] {
        color: var(--green);
    }

    .site-menu .site-menu-cta {
        margin-top: 10px;
        border-top: 0;
        text-align: center;
        border-radius: 8px;
        background: var(--green);
        color: #070a0f;
        font-weight: 700;
    }
}

/* ── Footer ───────────────────────────────────────────────────────── */
.site-footer {
    border-top: 1px solid var(--border);
    padding: 32px 60px 36px;
}

.site-footer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 16px 28px;
    margin-bottom: 16px;
}

.site-footer-brand {
    display: flex;
    align-items: center;
    gap: 10px;
}

.site-footer-links {
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px 20px;
}

.site-footer-links a,
.site-footer-links button {
    font: inherit;
    font-size: 12.5px;
    color: var(--text2);
    background: none;
    border: 0;
    padding: 0;
    cursor: pointer;
    text-decoration: none;
}

.site-footer-links a:hover,
.site-footer-links button:hover {
    color: var(--text);
}

.site-footer-meta {
    font-size: 12px;
    color: var(--text3);
    line-height: 1.6;
    margin-top: 6px;
}

@media (max-width: 700px) {
    .site-footer {
        padding: 28px 20px 32px;
    }

    .site-footer-row {
        flex-direction: column;
        align-items: flex-start;
    }
}

/* ══ Building blocks for Features / Pricing ══════════════════════════ */
.mk-wrap {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 32px;
}

.mk-section {
    padding: 88px 0;
    border-top: 1px solid var(--border);
}

.mk-eyebrow {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    background: var(--green-dim);
    color: var(--green);
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    padding: 5px 12px;
    border-radius: 999px;
    margin-bottom: 18px;
}

.mk-eyebrow.is-elite {
    background: var(--purple-dim);
    color: var(--purple);
}

.mk-hero {
    padding: 80px 0 72px;
    text-align: center;
}

.mk-h1 {
    font-family: var(--font-display);
    font-size: clamp(32px, 4.6vw, 56px);
    font-weight: 700;
    letter-spacing: -.01em;
    line-height: 1.08;
    max-width: 900px;
    margin: 0 auto 20px;
}

.mk-h1 .accent {
    color: var(--green);
}

.mk-lead {
    font-size: 17px;
    line-height: 1.7;
    color: var(--text2);
    max-width: 660px;
    margin: 0 auto;
}

.mk-actions {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 32px;
}

.mk-note {
    margin-top: 14px;
    font-size: 12.5px;
    color: var(--text3);
}

.mk-head {
    max-width: 760px;
    margin-bottom: 40px;
}

.mk-head.center {
    margin-left: auto;
    margin-right: auto;
    text-align: center;
}

.mk-h2 {
    font-family: var(--font-display);
    font-size: clamp(24px, 2.7vw, 34px);
    font-weight: 700;
    letter-spacing: -.01em;
    line-height: 1.15;
    margin: 0 0 12px;
}

.mk-head p {
    font-size: 15.5px;
    line-height: 1.7;
    color: var(--text2);
    margin: 0;
}

.mk-h3 {
    font-family: var(--font-display);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -.01em;
    margin: 0 0 8px;
    display: flex;
    align-items: center;
    flex-wrap: wrap;
    gap: 8px;
}

/* Plan chips — green = Pro, purple = Elite, neutral = trial/core */
.mk-chip {
    display: inline-flex;
    align-items: center;
    font-family: var(--font);
    font-size: 10.5px;
    font-weight: 700;
    letter-spacing: .05em;
    text-transform: uppercase;
    padding: 2px 8px;
    border-radius: 6px;
    white-space: nowrap;
}

.mk-chip.pro {
    background: var(--green-dim);
    color: var(--green);
}

.mk-chip.elite {
    background: var(--purple-dim);
    color: var(--purple);
}

.mk-chip.core {
    background: var(--bg3);
    color: var(--text2);
    border: 1px solid var(--border2);
}

/* In-page section navigation */
.mk-chipnav {
    display: flex;
    justify-content: center;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 40px;
}

.mk-chipnav a {
    font-size: 13px;
    font-weight: 600;
    color: var(--text2);
    text-decoration: none;
    padding: 8px 14px;
    border: 1px solid var(--border2);
    border-radius: 999px;
    transition: color .18s ease, border-color .18s ease;
}

.mk-chipnav a:hover {
    color: var(--text);
    border-color: var(--text3);
}

/* Cards */
.mk-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: 16px;
    padding: 28px;
    min-width: 0;
}

.mk-card.is-elite {
    border-color: rgba(167, 139, 250, .28);
}

.mk-card p {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text2);
    margin: 0;
}

.mk-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    display: grid;
    place-items: center;
    background: var(--green-dim);
    color: var(--green);
    margin-bottom: 18px;
}

.mk-icon.is-elite {
    background: var(--purple-dim);
    color: var(--purple);
}

.mk-icon svg {
    width: 20px;
    height: 20px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.8;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.mk-see {
    list-style: none;
    margin: 18px 0 0;
    padding: 16px 0 0;
    border-top: 1px solid var(--border);
}

.mk-see-label {
    font-size: 11px;
    font-weight: 700;
    letter-spacing: .08em;
    text-transform: uppercase;
    color: var(--text3);
    margin: 18px 0 0;
    padding-top: 16px;
    border-top: 1px solid var(--border);
}

.mk-see-label + .mk-see {
    margin-top: 10px;
    padding-top: 0;
    border-top: 0;
}

.mk-see li {
    position: relative;
    padding-left: 22px;
    font-size: 13.5px;
    line-height: 1.6;
    color: var(--text2);
    margin-top: 8px;
}

.mk-see li::before {
    content: "";
    position: absolute;
    left: 2px;
    top: 7px;
    width: 10px;
    height: 6px;
    border-left: 2px solid var(--green);
    border-bottom: 2px solid var(--green);
    transform: rotate(-45deg);
}

.is-elite .mk-see li::before {
    border-color: var(--purple);
}

.mk-grid-3 {
    display: grid;
    grid-template-columns: repeat(3, minmax(0, 1fr));
    gap: 18px;
}

.mk-grid-2 {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 18px;
}

/* Feature row: copy + a real product screen */
.mk-row {
    display: grid;
    grid-template-columns: minmax(0, 5fr) minmax(0, 6fr);
    gap: 48px;
    align-items: center;
}

.mk-row + .mk-row {
    margin-top: 72px;
}

.mk-row.flip .mk-row-copy {
    order: 2;
}

.mk-row-copy p {
    font-size: 15px;
    line-height: 1.75;
    color: var(--text2);
    margin: 0 0 12px;
}

/* Framed real screenshot, cropped to one panel (same technique as the landing page) */
.mk-frame {
    background: var(--bg2);
    border: 1px solid var(--border2);
    border-radius: 16px;
    overflow: hidden;
    box-shadow: 0 24px 60px rgba(0, 0, 0, .4);
}

.mk-frame-bar {
    padding: 10px 16px;
    border-bottom: 1px solid var(--border);
    font: 500 12px var(--font-mono);
    color: var(--text3);
}

.mk-frame-body {
    padding: 16px;
    background: var(--bg3);
}

.mk-shot {
    display: block;
    position: relative;
    overflow: hidden;
    aspect-ratio: var(--cw) / var(--ch);
    max-width: calc(var(--cw) * 1px);
    margin: 0 auto;
    border: 1px solid var(--border2);
    border-radius: 10px;
    background: #f7f9fb;
}

.mk-shot img {
    position: absolute;
    max-width: none;
    width: calc(var(--iw) / var(--cw) * 100%);
    height: auto;
    left: calc(var(--cx) / var(--cw) * -100%);
    top: calc(var(--cy) / var(--ch) * -100%);
}

.mk-frame-caption {
    margin: 0;
    padding: 12px 16px 14px;
    border-top: 1px solid var(--border);
    font-size: 12.5px;
    color: var(--text3);
}

/* FAQ */
.mk-faq {
    max-width: 780px;
    margin: 0 auto;
    border-top: 1px solid var(--border);
}

.mk-faq details {
    border-bottom: 1px solid var(--border);
}

.mk-faq summary {
    list-style: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 18px 4px;
    font-size: 15.5px;
    font-weight: 600;
    color: var(--text);
}

.mk-faq summary::-webkit-details-marker {
    display: none;
}

.mk-faq-icon {
    position: relative;
    flex: none;
    width: 20px;
    height: 20px;
}

.mk-faq-icon::before,
.mk-faq-icon::after {
    content: "";
    position: absolute;
    left: 50%;
    top: 50%;
    width: 12px;
    height: 1.5px;
    background: var(--text2);
    transform: translate(-50%, -50%);
    transition: transform .2s ease;
}

.mk-faq-icon::after {
    transform: translate(-50%, -50%) rotate(90deg);
}

.mk-faq details[open] .mk-faq-icon::after {
    transform: translate(-50%, -50%) rotate(0deg);
}

.mk-faq summary:hover .mk-faq-icon::before,
.mk-faq summary:hover .mk-faq-icon::after {
    background: var(--green);
}

.mk-faq p {
    margin: 0 4px 20px;
    max-width: 700px;
    font-size: 14.5px;
    line-height: 1.75;
    color: var(--text2);
}

.mk-faq p b {
    color: var(--text);
    font-weight: 600;
}

.mk-faq a,
.mk-link {
    color: var(--green);
    text-decoration: none;
}

.mk-faq a:hover,
.mk-link:hover {
    text-decoration: underline;
    text-underline-offset: 3px;
}

/* Closing CTA band */
.mk-cta {
    padding: 88px 24px 96px;
    text-align: center;
    border-top: 1px solid var(--border);
    background: var(--bg2);
}

.mk-cta .mk-h2 {
    max-width: 760px;
    margin: 0 auto 14px;
}

.mk-cta p {
    max-width: 560px;
    margin: 0 auto;
    font-size: 16px;
    line-height: 1.7;
    color: var(--text2);
}

@media (max-width: 960px) {
    .mk-grid-3 {
        grid-template-columns: minmax(0, 1fr);
    }

    .mk-row,
    .mk-row.flip {
        grid-template-columns: minmax(0, 1fr);
        gap: 28px;
    }

    .mk-row.flip .mk-row-copy {
        order: 0;
    }
}

@media (max-width: 700px) {
    .mk-wrap {
        padding: 0 20px;
    }

    .mk-section {
        padding: 64px 0;
    }

    .mk-hero {
        padding: 52px 0 48px;
    }

    .mk-lead {
        font-size: 15.5px;
    }

    .mk-grid-2 {
        grid-template-columns: minmax(0, 1fr);
    }

    .mk-card {
        padding: 22px 20px;
    }

    .mk-row + .mk-row {
        margin-top: 56px;
    }

    /* Desktop screenshots keep a readable 0.8x and scroll inside the frame */
    .mk-frame-body {
        padding: 10px;
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
    }

    .mk-shot {
        width: calc(var(--cw) * .8px);
        max-width: none;
        margin: 0;
    }

    .mk-cta {
        padding: 64px 20px 72px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .site-header,
    .site-menu-bars span,
    .mk-faq-icon::before,
    .mk-faq-icon::after {
        transition: none;
    }

    /* Same as the landing page: colour changes only — no lift, no sweep */
    .site-btn,
    .article-cta .btn {
        transform: none !important;
        transition: background .18s, color .18s, border-color .18s !important;
    }

    .site-btn::after,
    .article-cta .btn::after {
        display: none !important;
    }
}