/* Mobile public-site layout. Desktop presentation is retained. */
.site-menu { display: contents; }
.mobile-menu-toggle, .mobile-bottom-nav { display: none; }

@media (max-width: 850px) {
  html { scroll-padding-top: calc(88px + env(safe-area-inset-top, 0px)); }
  body.landing, body.public-tools {
    min-height: 100vh;
    min-height: 100svh;
    padding-bottom: calc(76px + env(safe-area-inset-bottom, 0px));
    -webkit-text-size-adjust: 100%;
  }
  .site-header { padding-top: env(safe-area-inset-top, 0px); z-index: 40; }
  .site-header nav.site-nav {
    position: relative;
    min-height: 72px;
    padding: 12px 18px;
    gap: 12px;
    flex-wrap: nowrap;
  }
  .site-header .site-brand { font-size: 21px; gap: 9px; min-height: 44px; }
  .site-header .site-brand svg { width: 27px; height: 32px; }
  .mobile-menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    flex: none;
    margin-left: auto;
    min-height: 44px;
    padding: 10px 13px;
    border: 1px solid #35465b;
    border-radius: 12px;
    background: #121e2f;
    color: #edf4fc;
    font: 600 13px/1.2 system-ui, sans-serif;
    cursor: pointer;
    touch-action: manipulation;
  }
  .mobile-menu-icon { display: grid; gap: 4px; width: 17px; }
  .mobile-menu-icon span { height: 2px; background: #8debd7; border-radius: 2px; transition: transform .16s, opacity .16s; }
  [aria-expanded="true"] .mobile-menu-icon span:first-child { transform: translateY(6px) rotate(45deg); }
  [aria-expanded="true"] .mobile-menu-icon span:nth-child(2) { opacity: 0; }
  [aria-expanded="true"] .mobile-menu-icon span:last-child { transform: translateY(-6px) rotate(-45deg); }
  .site-header .site-nav.mobile-nav-ready .site-menu {
    display: none;
    position: absolute;
    top: calc(100% + 8px);
    left: 12px;
    right: 12px;
    max-height: calc(100vh - 170px);
    max-height: calc(100dvh - 170px - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px));
    overflow-y: auto;
    padding: 10px;
    border: 1px solid #36485d;
    border-radius: 18px;
    background: #0f1a2b;
    box-shadow: 0 18px 45px #020713bb;
  }
  .site-header .site-nav[data-menu-open="true"] .site-menu { display: grid; gap: 10px; }
  .site-header .site-menu .site-links { display: grid; gap: 2px; width: auto; order: 0; overflow: visible; }
  .site-header .site-menu .site-links a {
    display: flex;
    align-items: center;
    min-height: 48px;
    padding: 11px 14px;
    font-size: 16px;
    border-radius: 10px;
    white-space: normal;
  }
  .site-header .site-menu .site-links a[aria-current="page"] { color: #9df0df; background: #8debd713; }
  .site-header .site-menu .site-links a[aria-current="page"]::after { display: none; }
  .site-header .site-menu .nav-cta { justify-content: center; margin: 0; min-height: 48px; font-size: 14px; }
  .site-header .site-nav:not(.mobile-nav-ready) { flex-wrap: wrap; }
  .site-header .site-nav:not(.mobile-nav-ready) .site-menu { display: flex; flex-wrap: wrap; gap: 8px; width: 100%; }
  .site-header .site-nav:not(.mobile-nav-ready) .site-links { display: flex; flex-wrap: wrap; gap: 4px; width: 100%; }
  .site-header .site-nav:not(.mobile-nav-ready) .site-links a { font-size: 14px; padding: 8px; }
  .mobile-bottom-nav {
    position: fixed;
    inset: auto 0 0;
    z-index: 35;
    display: grid;
    grid-template-columns: repeat(4, minmax(0, 1fr));
    gap: 4px;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: 5px max(10px, env(safe-area-inset-right, 0px)) calc(5px + env(safe-area-inset-bottom, 0px)) max(10px, env(safe-area-inset-left, 0px));
    border-top: 1px solid #314257;
    background: #0b1525f5;
    backdrop-filter: blur(18px);
    font: 500 11px/1.25 system-ui, sans-serif;
  }
  .mobile-bottom-nav a {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 5px;
    min-width: 0;
    min-height: 56px;
    margin: 0;
    padding: 7px 2px;
    border-radius: 12px;
    color: #a4b4cb;
    text-decoration: none;
    font-size: 11px;
    touch-action: manipulation;
  }
  .mobile-bottom-nav a[aria-current="page"] { color: #9df0df; background: #8debd710; }
  .mobile-bottom-nav svg { width: 22px; height: 22px; flex: none; }
  .mobile-bottom-nav a:focus-visible { outline: 2px solid #8debd7; outline-offset: -2px; }
  .landing .wrap { width: calc(100% - 36px); }
  .landing .hero { grid-template-columns: 1fr; gap: 26px; padding: 28px 0 34px; }
  .landing .hero h1 { font-size: clamp(44px, 11.5vw, 60px); line-height: 1.08; }
  .landing .hero-intro { font-size: 16px; line-height: 1.7; margin-bottom: 22px; }
  .landing .hero-footnote { font-size: 12px; line-height: 1.6; }
  .landing .location { font-size: 11px; padding: 7px 10px; margin-bottom: 20px; }
  .landing .actions { gap: 10px; }
  .landing .actions .btn { flex: 1 1 140px; min-height: 50px; padding: 13px 12px; font-size: 14px; gap: 8px; }
  .landing .hero-art { width: 100%; max-width: 420px; margin: auto; }
  .landing .hero-art figcaption { font-size: 10px; letter-spacing: .02em; flex-wrap: wrap; }
  .landing .speed-top { flex-wrap: wrap; gap: 8px; }
  .landing .speed-top p { font-size: 13px; }
  .landing .speed-date { font-size: 11px; max-width: none; text-align: left; }
  .landing .speed-note, .landing .speed-method summary { font-size: 12px; line-height: 1.65; }
  .landing .speed-method p { font-size: 13px; }
  .landing .speed-method summary { display: flex; align-items: center; min-height: 44px; }
  .landing .speed-method summary::after { top: 10px; }
  .landing .benefit p, .landing .section-head > p, .landing .connect-banner p { font-size: 14px; }
  .landing .manager { grid-template-columns: 1fr; gap: 26px; padding: 22px; }
  .landing .manager-visual { order: 2; }
  .landing .manager .copy { font-size: 15px; }
  .landing .manager .text-link { font-size: 13px; }
  .landing .demo-rings { gap: 7px; }
  .landing .demo-stat { min-width: 0; padding: 14px 5px; }
  .landing .ring { width: clamp(46px, 16vw, 65px); }
  .landing .demo-stat small { font-size: 9px; letter-spacing: 0; }
  .landing .manager-list { flex-wrap: wrap; padding: 12px; }
  .landing .page-hero { padding: 28px 0 16px; }
  .landing .page-hero h1 { font-size: clamp(28px, 7.7vw, 38px); line-height: 1.15; }
  .landing .page-hero p:last-child { font-size: 15px; line-height: 1.7; }
  .landing .family-tabs { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 6px; }
  .landing .family-tabs button { min-width: 0; min-height: 48px; padding: 11px 5px; font-size: clamp(12px, 3.2vw, 14px); }
  .landing .client-card { grid-template-columns: 1fr; padding: 20px; gap: 24px; }
  .landing .client-card > div { min-width: 0; }
  .landing .client-card p { font-size: 15px; line-height: 1.7; }
  .landing .platform-tabs { gap: 7px; }
  .landing .platform-tabs button { min-height: 44px; padding: 10px 11px; font-size: 13px; }
  .landing .platform-tabs img { width: 16px; height: 16px; }
  .landing .download-card { padding: 18px; }
  .landing .download-card .download-meta { font-size: 13px; }
  .landing .download-card .btn { width: 100%; min-height: 50px; font-size: 14px; white-space: normal; }
  .landing .download-security { font-size: 12px !important; line-height: 1.7; }
  .landing .alt-downloads { font-size: 13px; }
  .landing .alt-downloads a { padding-block: 5px; }
  .landing .client-guide { border-left: 0; border-top: 1px solid var(--site-line); padding: 22px 0 0; }
  .landing .mini-steps li, .landing details p, .landing details li { font-size: 14px; line-height: 1.75; }
  .landing details > summary { min-height: 44px; display: flex; align-items: center; font-size: 15px; }
  .landing details > summary::after { top: 9px; }
  .landing .other-downloads summary { font-size: 14px; }
  .landing .route-section { padding: 20px; }
  .landing .route-section p, .landing .route-section li { font-size: 14px; }
  .landing .route-section .btn { width: 100%; white-space: normal; text-align: center; min-height: 50px; }
  .landing .settings-table { table-layout: fixed; }
  .landing .settings-table td { vertical-align: top; overflow-wrap: anywhere; padding: 13px 6px; font-size: 13px; }
  .landing .settings-table td:first-child { width: 45%; }
  .landing .settings-table td:last-child { text-align: left; }
  .landing .about-layout { grid-template-columns: 1fr; }
  .landing .about-card p, .landing .contact-card p, .landing .privacy-note { font-size: 14px; }
  .landing .contacts-grid, .landing .about-grid { grid-template-columns: 1fr; }
  .landing .contact-card > a { display: inline-flex; min-height: 44px; align-items: center; }
  .site-footer { padding: 28px 18px; }
  .site-footer-links { display: grid; grid-template-columns: 1fr 1fr; gap: 4px 20px; width: 100%; }
  .site-footer-links a { display: flex; align-items: center; min-height: 44px; font-size: 13px; }
  .public-tools main { padding: 28px 18px 40px; min-width: 0; }
  .public-tools h1 { font-size: 34px; }
  .public-tools .intro { font-size: 16px; line-height: 1.7; margin-bottom: 24px; }
  .public-tools .page-tabs { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); max-width: 100%; width: 100%; gap: 4px; }
  .public-tools .page-tabs a { min-width: 0; min-height: 44px; padding: 11px 6px; font-size: 14px; text-align: center; }
  .public-tools .page-tabs a:first-child { grid-column: 1 / -1; }
  .public-tools .app { grid-template-columns: minmax(0, 1fr); padding: 20px; gap: 22px; }
  .public-tools .app > div { min-width: 0; }
  .public-tools .app-heading { align-items: flex-start; gap: 12px; }
  .public-tools .app-heading h2 { font-size: 25px; overflow-wrap: anywhere; }
  .public-tools .app-icon { width: 46px; height: 46px; border-radius: 13px; }
  .public-tools .app-icon svg { width: 30px; height: 30px; }
  .public-tools .description { font-size: 15px; line-height: 1.75; }
  .public-tools .download { border-left: 0; border-top: 1px solid var(--site-line); padding: 22px 0 0; }
  .public-tools .features, .public-tools .instructions, .public-tools .security-grid, .public-tools .security-split, .public-tools .security-checks { grid-template-columns: minmax(0, 1fr); }
  .public-tools .security-card { padding: 20px; }
  .public-tools .security-download .button { min-width: 0; width: 100%; }
  .public-tools .button { min-height: 50px; white-space: normal; text-align: center; }
  .public-tools .tab-panel { scroll-margin-top: calc(88px + env(safe-area-inset-top, 0px)); }
  .public-tools details summary { min-height: 44px; }
  .public-tools .support > a { min-height: 44px; display: inline-flex; align-items: center; }
  .public-tools code { overflow-wrap: anywhere; }
}

@media (max-width: 430px) {
  .landing .hero .actions { display: grid; grid-template-columns: minmax(0, 1fr); }
  .landing .hero .actions .btn { width: 100%; }
}

@media (prefers-reduced-motion: reduce) {
  .mobile-menu-icon span { transition: none; }
}