/* ==========================================================================
   NTD Logic — ntdlogic.com
   Professional technology-company design system.
   Structure follows the proven ntdciso.com stylesheet architecture:
   3rem section padding site-wide (desktop AND mobile), no gradients beyond
   the hero wash, hairline rules, AA-contrast accent tokens.
   ========================================================================== */

:root {
    --ink: #0E1524;          /* deep navy: header, hero, footer, CTA bands */
    --ink-2: #17203A;        /* card surface on ink */
    --paper: #F5F7FA;        /* light section background */
    --surface: #FFFFFF;
    --accent: #0F6C8C;       /* deep teal-blue: buttons, rules, icons */
    --accent-dark: #0B5570;  /* button hover */
    --accent-text: #0C5876;  /* accent-colored text on light backgrounds (AA) */
    --accent-soft: #E4F0F5;  /* icon chip background on light */
    --text: #232A34;
    --muted: #5A6472;
    --hairline: #DCE2EA;
    --ok: #1F7A46;           /* checklist marks */
    --radius: 12px;
    --radius-lg: 16px;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
    font-family: var(--font);
    color: var(--text);
    background: var(--surface);
    line-height: 1.6;
    font-size: 1.02rem;
    -webkit-font-smoothing: antialiased;
}

img { max-width: 100%; height: auto; }

a { color: var(--accent-text); }

.container {
    max-width: 1120px;
    margin: 0 auto;
    padding: 0 1.5rem;
}

/* Skip link ------------------------------------------------------------- */
.skip-link {
    position: absolute;
    left: -9999px;
    top: 0;
    background: var(--ink);
    color: #fff;
    padding: 0.6rem 1rem;
    z-index: 200;
}
.skip-link:focus { left: 0; }

/* Focus visibility ------------------------------------------------------- */
a:focus-visible, button:focus-visible, input:focus-visible,
select:focus-visible, textarea:focus-visible {
    outline: 2px solid var(--accent);
    outline-offset: 2px;
}

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
    background: var(--ink);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: sticky;
    top: 0;
    z-index: 100;
}

.header-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    min-height: 76px;
}

.brand {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    text-decoration: none;
    color: #F4F6F9;
}

/* Brand chip: the logo art is built for light surfaces, so it sits on a
   small light tile in the dark header/footer */
.brand img {
    display: block;
    height: 56px;
    width: auto;
    background: #F7F9FC;
    border-radius: 10px;
    padding: 8px 12px;
}

.site-footer .brand img { height: 56px; }

.primary-nav ul {
    list-style: none;
    display: flex;
    align-items: center;
    gap: 1.8rem;
}

.primary-nav a {
    color: #E8ECF2;
    text-decoration: none;
    font-size: 0.98rem;
    font-weight: 500;
}

.primary-nav a:hover { color: #FFFFFF; }

.primary-nav a[aria-current="page"] { color: #FFFFFF; border-bottom: 2px solid #2FA3C7; padding-bottom: 0.2rem; }

.primary-nav .nav-cta {
    display: inline-block;
    padding: 0.55rem 1.1rem;
    border: 1px solid #2FA3C7;
    border-radius: 8px;
    color: #FFFFFF;
}

.primary-nav .nav-cta:hover { background: var(--accent); border-color: var(--accent); }

.nav-toggle {
    display: none;
    background: transparent;
    border: 0;
    color: #E8ECF2;
    padding: 10px;
    cursor: pointer;
}

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
    background:
        radial-gradient(900px 380px at 85% -10%, rgba(31, 118, 152, 0.35), transparent 65%),
        linear-gradient(180deg, var(--ink) 0%, #111A2E 100%);
    color: #F4F6F9;
    padding: 4.5rem 0 0;
}

.hero-main {
    display: grid;
    grid-template-columns: minmax(0, 1.05fr) minmax(0, 0.95fr);
    gap: 3.5rem;
    align-items: center;
    padding-bottom: 4rem;
}

.eyebrow {
    color: #7FC3DC;
    font-size: 0.82rem;
    font-weight: 600;
    letter-spacing: 0.16em;
    text-transform: uppercase;
    margin-bottom: 1.1rem;
}

.hero h1 {
    font-size: clamp(2.3rem, 5vw, 3.4rem);
    line-height: 1.12;
    letter-spacing: -0.02em;
    font-weight: 700;
    color: #FFFFFF;
    margin-bottom: 1.1rem;
}

.hero-sub {
    color: #C7D0DC;
    font-size: 1.15rem;
    max-width: 34rem;
    margin-bottom: 1.8rem;
}

.hero-ctas {
    display: flex;
    gap: 0.9rem;
    flex-wrap: wrap;
}

/* Buttons ---------------------------------------------------------------- */
.btn {
    display: inline-block;
    text-decoration: none;
    font-weight: 600;
    font-size: 1rem;
    border-radius: 8px;
    padding: 0.78rem 1.45rem;
    transition: background 0.15s ease, color 0.15s ease, border-color 0.15s ease;
}

.btn-primary {
    background: var(--accent);
    color: #FFFFFF;
}
.btn-primary:hover { background: var(--accent-dark); }
.btn-primary:disabled { opacity: 0.6; cursor: default; }

.btn-secondary {
    background: transparent;
    color: #E8ECF2;
    border: 1px solid rgba(255, 255, 255, 0.28);
}
.btn-secondary:hover { border-color: #FFFFFF; color: #FFFFFF; }

.btn-quiet {
    background: transparent;
    color: var(--accent-text);
    border: 1px solid var(--hairline);
    padding: 0.55rem 1.05rem;
    font-size: 0.92rem;
}
.btn-quiet:hover { border-color: var(--accent-text); }

/* Hero call mock (interface-style element, pure DOM) ---------------------- */
.hero-mock {
    background: var(--ink-2);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: var(--radius-lg);
    padding: 1.4rem 1.4rem 1.2rem;
    font-size: 0.92rem;
}

.mock-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 0.75rem;
    padding-bottom: 0.9rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    margin-bottom: 1.1rem;
}

.mock-status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    color: #D6DEE8;
    font-weight: 600;
    font-size: 0.85rem;
}

.mock-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #3FB97A;
    flex: none;
}

.mock-time { color: #8A97A8; font-size: 0.8rem; }

.mock-flow { display: grid; gap: 0.8rem; }

.bubble {
    max-width: 92%;
    padding: 0.6rem 0.85rem;
    border-radius: 10px;
    line-height: 1.45;
}

.bubble-ai {
    background: rgba(47, 163, 199, 0.14);
    border: 1px solid rgba(47, 163, 199, 0.25);
    color: #EAF2F7;
    border-bottom-left-radius: 3px;
}

.bubble-caller {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    color: #D6DEE8;
    justify-self: end;
    border-bottom-right-radius: 3px;
}

.bubble-who {
    display: block;
    font-size: 0.68rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: #7FC3DC;
    margin-bottom: 0.15rem;
}

.bubble-caller .bubble-who { color: #8A97A8; }

.mock-chips {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1.1rem;
    padding-top: 1rem;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mock-chip {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    font-size: 0.78rem;
    font-weight: 600;
    color: #BFE3EF;
    border: 1px solid rgba(47, 163, 199, 0.4);
    border-radius: 999px;
    padding: 0.3rem 0.7rem;
}

.mock-chip svg { width: 13px; height: 13px; }

/* Real brand graphics (WebP, transparent, sponsor renders) ----------------- */
.hero-shots {
    display: block;
    width: min(100%, 430px);
    height: auto;
    justify-self: center;
}

.chat-shots {
    display: block;
    width: 100%;
    height: auto;
}

@media (max-width: 640px) {
    .hero-shots { width: min(100%, 340px); }
}

/* Proof bar --------------------------------------------------------------- */

.hero-proof {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    border-top: 1px solid rgba(255, 255, 255, 0.14);
}

.proof-item {
    padding: 1.3rem 1.5rem;
    border-left: 1px solid rgba(255, 255, 255, 0.14);
}

.proof-item:first-child { border-left: 0; padding-left: 0; }

.proof-item b {
    display: block;
    color: #FFFFFF;
    font-size: 0.98rem;
    font-weight: 600;
    margin-bottom: 0.1rem;
}

.proof-item span {
    color: #9AA6B6;
    font-size: 0.85rem;
}

/* --------------------------------------------------------------------------
   Sections
   -------------------------------------------------------------------------- */
.section { padding: 3rem 0; }

.section-paper { background: var(--paper); }

.section-head { max-width: 44rem; }

.section-head h2 {
    font-size: clamp(1.6rem, 3vw, 2.1rem);
    line-height: 1.22;
    letter-spacing: -0.01em;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 0.7rem;
}

.section-head p { color: var(--muted); }

.section-white h2, .section-paper h2 { color: var(--ink); }

/* Benefits ---------------------------------------------------------------- */
.benefit-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.2rem;
    margin-top: 2rem;
}

.benefit {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    padding: 1.3rem 1.35rem;
}

.section-paper .benefit { border-color: var(--hairline); background: var(--surface); }

.icon-chip {
    width: 40px;
    height: 40px;
    border-radius: 9px;
    background: var(--accent-soft);
    color: var(--accent-text);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 0.8rem;
}

.icon-chip svg {
    width: 21px;
    height: 21px;
    fill: none;
    stroke: currentColor;
    stroke-width: 1.7;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.benefit h3 {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.25rem;
}

.benefit p {
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.5;
}

/* How it works ------------------------------------------------------------ */
.steps {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.2rem;
    margin-top: 2rem;
    counter-reset: step;
}

.step {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    padding: 1.4rem 1.35rem;
    position: relative;
}

.step-num {
    display: inline-block;
    font-variant-numeric: tabular-nums;
    font-size: 0.8rem;
    font-weight: 700;
    color: var(--accent-text);
    letter-spacing: 0.08em;
    border-bottom: 2px solid var(--accent);
    padding-bottom: 0.3rem;
    margin-bottom: 0.9rem;
}

.step h3 {
    font-size: 1.02rem;
    font-weight: 600;
    color: var(--ink);
    margin-bottom: 0.3rem;
    line-height: 1.35;
}

.step p {
    color: var(--muted);
    font-size: 0.92rem;
    line-height: 1.5;
}

/* Checklists ---------------------------------------------------------------- */
.checklist {
    list-style: none;
    max-width: 40rem;
}

.checklist li {
    padding-left: 1.9rem;
    position: relative;
    margin-bottom: 0.6rem;
    color: var(--text);
}

.checklist li::before {
    content: "";
    position: absolute;
    left: 0;
    top: 0.28em;
    width: 1.05em;
    height: 1.05em;
    border-radius: 50%;
    background: var(--accent-soft);
}

.checklist li::after {
    content: "";
    position: absolute;
    left: 0.32em;
    top: 0.52em;
    width: 0.4em;
    height: 0.22em;
    border-left: 2px solid var(--accent-text);
    border-bottom: 2px solid var(--accent-text);
    transform: rotate(-45deg);
}

/* Two-column split --------------------------------------------------------- */
.split {
    display: grid;
    grid-template-columns: minmax(0, 1fr) minmax(0, 1fr);
    gap: 3rem;
    align-items: start;
}

/* Chat mock (light background variant) -------------------------------------- */
.chat-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-bottom: 0;
    border-radius: var(--radius-lg) var(--radius-lg) 0 0;
    padding: 1.2rem;
    font-size: 0.92rem;
}

.chat-card .bubble-ai {
    background: var(--accent-soft);
    border-color: #BFDDE8;
    color: var(--text);
}

.chat-card .bubble-ai .bubble-who { color: var(--accent-text); }

.chat-card .bubble-caller {
    background: var(--paper);
    border-color: var(--hairline);
    color: var(--text);
}

.chat-card .bubble-caller .bubble-who { color: var(--muted); }

.chat-input {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    border: 1px solid var(--hairline);
    border-bottom: 0;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
    background: var(--surface);
    padding: 0.7rem 1.2rem 1rem;
    margin-left: 1px;
}

.chat-input .field {
    flex: 1;
    border: 1px solid var(--hairline);
    border-radius: 8px;
    color: var(--muted);
    font-size: 0.88rem;
    padding: 0.5rem 0.8rem;
}

.chat-send {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
}

.chat-send svg { width: 16px; height: 16px; stroke: #fff; fill: none; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.embed-slot { margin-top: 1.5rem; }

/* Industries ---------------------------------------------------------------- */
.chip-grid {
    display: flex;
    flex-wrap: wrap;
    gap: 0.6rem;
    margin-top: 1.6rem;
}

.chip {
    border: 1px solid var(--hairline);
    border-radius: 999px;
    padding: 0.45rem 1rem;
    font-size: 0.92rem;
    font-weight: 500;
    color: var(--text);
    background: var(--surface);
}

.section-paper .chip { background: var(--surface); }

/* Comparison table ----------------------------------------------------------- */
.compare {
    width: 100%;
    border-collapse: collapse;
    margin-top: 2rem;
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    overflow: hidden;
    font-size: 0.95rem;
}

.compare caption {
    text-align: left;
    padding: 0 0 0.9rem;
    color: var(--muted);
    font-size: 0.9rem;
}

.compare th, .compare td {
    text-align: left;
    padding: 0.85rem 1.1rem;
    border-top: 1px solid var(--hairline);
    vertical-align: top;
}

.compare thead th {
    border-top: 0;
    background: var(--paper);
    font-size: 0.85rem;
    letter-spacing: 0.04em;
    text-transform: uppercase;
    color: var(--muted);
}

.compare tbody th {
    font-weight: 600;
    color: var(--ink);
    width: 22%;
}

.compare td { color: var(--text); }

.compare .yes { color: var(--ok); font-weight: 600; }

.compare td strong.na { color: var(--muted); font-weight: 600; }

/* Pricing --------------------------------------------------------------------- */
.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 1.3rem;
    margin-top: 2rem;
    align-items: stretch;
}

.price-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 1.6rem 1.6rem 1.4rem;
    display: flex;
    flex-direction: column;
}

.price-card.featured {
    border: 2px solid var(--accent);
    position: relative;
}

.badge {
    position: absolute;
    top: -0.75rem;
    left: 1.4rem;
    background: var(--accent);
    color: #FFFFFF;
    font-size: 0.72rem;
    font-weight: 700;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    border-radius: 999px;
    padding: 0.25rem 0.75rem;
}

.price-tier {
    font-size: 0.82rem;
    font-weight: 700;
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-text);
    margin-bottom: 0.5rem;
}

.price {
    font-size: 1.85rem;
    font-weight: 700;
    color: var(--ink);
    letter-spacing: -0.01em;
}

.price small {
    font-size: 0.95rem;
    font-weight: 500;
    color: var(--muted);
}

.price-setup {
    color: var(--muted);
    font-size: 0.88rem;
    margin: 0.2rem 0 1.1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--hairline);
}

.price-card .checklist {
    margin-bottom: 1.4rem;
}

.price-card .checklist li {
    font-size: 0.94rem;
    margin-bottom: 0.5rem;
}

.price-card .btn { margin-top: auto; text-align: center; }

.price-note {
    margin-top: 1.2rem;
    padding: 0.9rem 1.1rem;
    background: var(--paper);
    border: 1px solid var(--hairline);
    border-radius: var(--radius);
    color: var(--muted);
    font-size: 0.92rem;
}

/* Small modernization block (secondary only) --------------------------------- */
.modernize {
    max-width: 46rem;
}

.modernize h2 {
    font-size: 1.35rem;
    font-weight: 700;
    color: var(--ink);
    margin-bottom: 0.5rem;
}

.modernize p { color: var(--muted); font-size: 0.98rem; }

/* CTA band --------------------------------------------------------------------- */
.cta-band {
    background: var(--ink);
    color: #F4F6F9;
    padding: 3rem 0;
}

.cta-band-inner {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 2rem;
    flex-wrap: wrap;
}

.cta-band h2 {
    color: #FFFFFF;
    font-size: clamp(1.5rem, 3vw, 2rem);
    font-weight: 700;
    letter-spacing: -0.01em;
    margin-bottom: 0.4rem;
}

.cta-band p { color: #C7D0DC; max-width: 34rem; }

/* Page header (inner pages) ------------------------------------------------------ */
.page-header {
    background:
        radial-gradient(800px 300px at 80% -20%, rgba(31, 118, 152, 0.3), transparent 65%),
        var(--ink);
    color: #F4F6F9;
    padding: 3.5rem 0;
}

.page-header h1 {
    color: #FFFFFF;
    font-size: clamp(2rem, 4.4vw, 2.9rem);
    line-height: 1.15;
    letter-spacing: -0.02em;
    font-weight: 700;
    margin-bottom: 0.8rem;
    max-width: 46rem;
}

.page-header .intro {
    color: #C7D0DC;
    font-size: 1.1rem;
    max-width: 40rem;
}

.breadcrumb {
    padding: 1.2rem 0 0;
    font-size: 0.88rem;
}

.breadcrumb a { color: var(--muted); text-decoration: none; }
.breadcrumb a:hover { color: var(--accent-text); }

/* Forms ---------------------------------------------------------------------- */
.form-card {
    background: var(--surface);
    border: 1px solid var(--hairline);
    border-radius: var(--radius-lg);
    padding: 1.8rem;
    max-width: 40rem;
    color: var(--text);
    margin-top: 1.8rem;
}

.form-card label {
    display: block;
    font-weight: 600;
    font-size: 0.92rem;
    color: var(--ink);
    margin: 1rem 0 0.3rem;
}

.form-card label:first-of-type { margin-top: 0; }

.form-card input[type="text"],
.form-card input[type="email"],
.form-card input[type="tel"],
.form-card input[type="url"],
.form-card select,
.form-card textarea {
    width: 100%;
    border: 1px solid var(--hairline);
    border-radius: 8px;
    padding: 0.65rem 0.85rem;
    font-family: inherit;
    font-size: 0.98rem;
    color: var(--text);
    background: #FDFDFE;
}

.form-card textarea { resize: vertical; }

.form-check {
    display: flex;
    gap: 0.6rem;
    align-items: flex-start;
    margin-top: 1.2rem;
    font-size: 0.95rem;
}

.form-check input {
    width: 18px;
    height: 18px;
    margin-top: 0.15em;
    flex: none;
}

.form-check label { font-weight: 500; margin: 0; color: var(--text); }

.form-status { margin-top: 0.9rem; font-size: 0.95rem; min-height: 1.4em; }
.form-status-ok { color: var(--ok); font-weight: 600; }
.form-status-err { color: #B42318; font-weight: 600; }

.form-fine {
    font-size: 0.82rem;
    color: var(--muted);
    margin-top: 0.9rem;
}

.field-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 0 1rem;
}

/* Demo placeholder -------------------------------------------------------- */
.demo-slot {
    border: 1.5px dashed var(--hairline);
    border-radius: var(--radius);
    background: var(--paper);
    padding: 2rem 1.5rem;
    text-align: center;
    color: var(--muted);
    margin-top: 1.5rem;
}

.demo-slot b { color: var(--ink); display: block; margin-bottom: 0.25rem; font-size: 1rem; }

/* Footer --------------------------------------------------------------------- */
.site-footer {
    background: var(--ink);
    color: #C7D0DC;
    padding: 3rem 0 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 2.5rem;
    padding-bottom: 2rem;
}

.site-footer .brand { margin-bottom: 0.9rem; }

.footer-tagline {
    font-size: 0.92rem;
    max-width: 26rem;
    margin-bottom: 0.8rem;
}

.footer-legal-line {
    font-size: 0.88rem;
    color: #9AA6B6;
}

.site-footer h3 {
    color: #FFFFFF;
    font-size: 0.85rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    margin-bottom: 0.9rem;
}

.site-footer ul { list-style: none; }

.site-footer ul a {
    color: #C7D0DC;
    text-decoration: none;
    font-size: 0.95rem;
    line-height: 2;
}

.site-footer ul a:hover { color: #FFFFFF; }

.footer-bottom {
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    padding-top: 1.4rem;
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
    font-size: 0.85rem;
    color: #9AA6B6;
}

/* Mobile sticky CTA bar ------------------------------------------------------- */
.mobile-book-bar {
    position: fixed;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--ink);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    padding: 0.7rem 1.2rem calc(0.7rem + env(safe-area-inset-bottom));
    transform: translateY(110%);
    transition: transform 0.2s ease;
    z-index: 90;
    display: none;
}

.mobile-book-bar.show { transform: translateY(0); }

.mobile-book-bar a {
    display: block;
    text-align: center;
}

/* 404 ------------------------------------------------------------------------ */
.notfound { padding: 4rem 0 5rem; }
.notfound h1 { color: var(--ink); margin-bottom: 0.6rem; }
.notfound p { color: var(--muted); margin-bottom: 1.4rem; }

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 960px) {
    .hero-main { grid-template-columns: 1fr; gap: 2.5rem; }
    .hero-mock { max-width: 34rem; }
    .benefit-grid { grid-template-columns: repeat(2, 1fr); }
    .steps { grid-template-columns: repeat(2, 1fr); }
    .pricing-grid { grid-template-columns: 1fr; max-width: 30rem; }
    .split { grid-template-columns: 1fr; gap: 2rem; }
    .footer-grid { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 860px) {
    .nav-toggle { display: block; }

    .primary-nav {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: var(--ink);
        border-bottom: 1px solid rgba(255, 255, 255, 0.12);
        padding: 0.6rem 1.5rem 1.2rem;
    }

    .primary-nav.open { display: block; }

    .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }

    .primary-nav li { border-bottom: 1px solid rgba(255, 255, 255, 0.08); }

    .primary-nav a {
        display: block;
        padding: 0.85rem 0;
        font-size: 1.02rem;
    }

    .primary-nav a[aria-current="page"] { border-bottom: 2px solid #2FA3C7; display: inline-block; }

    .primary-nav .nav-cta {
        margin-top: 0.8rem;
        border: 1px solid #2FA3C7;
        text-align: center;
    }

    .primary-nav li:last-child { border-bottom: 0; }
}

@media (max-width: 640px) {
    .brand img { height: 46px; padding: 7px 10px; }
    .hero { padding-top: 3rem; }
    .hero-main { padding-bottom: 2.5rem; }
    .hero-proof { grid-template-columns: 1fr 1fr; }
    .proof-item { padding: 1rem 1.1rem; }
    .proof-item:nth-child(odd) { border-left: 0; padding-left: 0; }
    .benefit-grid { grid-template-columns: 1fr; }
    .steps { grid-template-columns: 1fr; }
    .field-row { grid-template-columns: 1fr; }
    .footer-grid { grid-template-columns: 1fr; gap: 1.8rem; }
    .mobile-book-bar { display: block; }
    body { padding-bottom: 64px; }
    .cta-band-inner { flex-direction: column; align-items: flex-start; }
}

@media (max-width: 360px) {
    .hero-proof { grid-template-columns: 1fr; }
    .proof-item { border-left: 0; padding-left: 0; }
}

@media (prefers-reduced-motion: reduce) {
    html { scroll-behavior: auto; }
    * { transition: none !important; }
}