/* base.css
   Page chrome + response frame — split from style.css
   Header, hero, input, chips, samples, response area/canvas,
   thinking animation, proof stack, footer, responsive */

/* ─── PAGE SCROLLBAR ───
   Slim, glassy scrollbar for the main document — same treatment as the About
   drawer (.about-stage), not the OS default. */
html {
    scrollbar-width: thin;
    scrollbar-color: rgba(255, 255, 255, 0.38) transparent;
}

html::-webkit-scrollbar {
    width: 10px;
}

html::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.06);
    border-radius: 99px;
}

html::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.32);
    border-radius: 99px;
    border: 2px solid transparent;
    background-clip: padding-box;
    transition: background var(--transition);
}

html::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.55);
}

/* ─── HEADER ─── */

.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    background:
        linear-gradient(180deg, rgba(19, 19, 32, 0.9) 0%, rgba(9, 9, 16, 0.92) 100%);
    backdrop-filter: blur(22px) saturate(140%);
    -webkit-backdrop-filter: blur(22px) saturate(140%);
    border-bottom: 1px solid rgba(255, 255, 255, 0.07);
    transition: padding var(--transition);
}

/* Shares the hero's centred column (--hero-col) so the logo sits flush with the
   hero text's left edge — both are centred in the window together. */
.header-inner {
    /* Wider shell column so the logo sits further out to the left, past the
       hero text's edge, and the header spans more of the window. */
    max-width: var(--shell-max);
    margin: 0 auto;
    padding: 12px var(--shell-pad);
    display: flex;
    align-items: center;
    justify-content: flex-start;
    gap: 24px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    white-space: nowrap;
}

.brand-logo {
    height: 40px;
    width: auto;
    border-radius: 8px;
}

.brand-name {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: 24px;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.03em;
    white-space: nowrap;
}

.brand-badge {
    font-size: 10px;
    font-weight: 700;
    letter-spacing: 0.12em;
    color: var(--pux);
    background: rgba(20, 184, 166, 0.12);
    border: 1px solid rgba(20, 184, 166, 0.3);
    padding: 2px 8px;
    border-radius: 99px;
    text-transform: uppercase;
}

/* ─── HERO (Section 1) ───
   Left-aligned stack: label → headline → sub → asker capsule → proof stats.
   The signals section peeks below so the guided path stays discoverable. */

.hero {
    /* Full-height hero — fills the viewport below the sticky header and centres
       its content, so pitch → ask → signals → proof sit in a tall, evenly
       balanced column with real air top and bottom. This is the premium read:
       the section owns the screen rather than crowding under the header. */
    min-height: calc(100svh - var(--header-h) - 60px);
    padding: 16px 0 2px;
    display: flex;
    align-items: center;
    position: relative;
    overflow: hidden;
}

/* Atmospheric orbs — slow drift keeps the landing feeling alive. */
.hero::before {
    content: '';
    position: absolute;
    top: -200px;
    left: -200px;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(124, 58, 237, 0.20) 0%, transparent 70%);
    pointer-events: none;
    animation: orbDrift 16s ease-in-out infinite;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -150px;
    right: -100px;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(13, 148, 136, 0.16) 0%, transparent 70%);
    pointer-events: none;
    animation: orbDrift 21s ease-in-out infinite reverse;
}

@keyframes orbDrift {

    0%,
    100% {
        transform: translate3d(0, 0, 0);
    }

    50% {
        transform: translate3d(46px, 34px, 0);
    }
}

.hero-inner {
    /* Narrow centred column (shared with the header) — the block sits in the
       middle of the window; its contents stay left-aligned. */
    max-width: var(--hero-col);
    margin: 0 auto;
    width: 100%;
    padding: 0 var(--shell-pad);
    position: relative;
    z-index: 1;
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    text-align: left;
    /* Left-aligned, uncluttered rhythm; the slimmed header + footer chrome funds
       this breathing space so the full hero fits one screen without scroll. */
    gap: 22px;
}

.hero-copy {
    /* Wide enough that "business impact at Warp Speed" holds one line at the
       capped headline size. */
    max-width: 880px;
    margin: 0;
}

.hero-headline {
    font-family: 'Inter', system-ui, sans-serif;
    font-size: clamp(36px, 4.3vw, 56px);
    font-weight: 700;
    line-height: 1.08;
    letter-spacing: 0;
    color: var(--white);
    margin-bottom: 12px;
}

.hero-highlight {
    background: linear-gradient(135deg, var(--purple-light), var(--teal-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-sub {
    font-size: clamp(16px, 1.35vw, 18px);
    font-weight: 400;
    color: var(--muted);
    /* Wide enough that the pitch settles onto two lines at the capped size,
       rather than spilling to a third. Narrower viewports still wrap freely. */
    max-width: 800px;
    margin: 0;
    line-height: 1.6;
}

/* ─── ASKER ───
   Plain side-by-side field and Ask button: broad, calm, and low-elevation. */

.hero-ask {
    width: 100%;
}

.hero-ask .input-wrap {
    position: relative;
    display: flex;
    align-items: stretch;   /* field + button share one height */
    gap: 14px;
    max-width: none;        /* fill the hero column */
    margin: 0;
    padding: 0;
    background: none;
    border: none;
}

/* The field — a broad, translucent panel with a simple hairline. */
.hero-ask .input-wrap input {
    flex: 1 1 auto;
    min-width: 0;
    padding: 18px 22px;
    font-size: 16px;
    font-family: inherit;
    color: var(--white);
    background: rgba(255, 255, 255, 0.12);
    border: 1px solid rgba(255, 255, 255, 0.28);
    border-radius: 16px;
    outline: none;
    backdrop-filter: blur(8px) saturate(115%);
    -webkit-backdrop-filter: blur(8px) saturate(115%);
    box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
    transition: border-color var(--transition), background var(--transition), box-shadow var(--transition);
}

.hero-ask .input-wrap input::placeholder {
    color: rgba(255, 255, 255, 0.5);
}

.hero-ask .input-wrap input:focus {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.42);
    box-shadow:
        inset 0 1px 0 rgba(255, 255, 255, 0.16),
        0 0 0 3px rgba(255, 255, 255, 0.08);
}

/* The Ask button inherits the canonical lit-up skin from buttons.css
   (brand gradient + ambient drop shadow + purple glow + hover lift).
   Here we only set the hero sizing and match the input's 20px radius. */
.hero-ask .input-wrap button {
    flex: 0 0 auto;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 168px;
    padding: 0 34px;
    font-size: 14px;
    font-weight: 600;
    letter-spacing: 0.04em;
    font-family: inherit;
    border-radius: 16px;
    /* Branded glass: translucent brand gradient over a frosted blur, a light
       top sheen for the glass highlight, and a soft brand glow — the page
       shows faintly through it, giving real glass depth. */
    background:
        linear-gradient(180deg, rgba(255, 255, 255, 0.24) 0%, rgba(255, 255, 255, 0.03) 58%),
        linear-gradient(135deg, rgba(139, 92, 246, 0.72) 0%, rgba(20, 184, 166, 0.72) 100%);
    border: 1px solid rgba(255, 255, 255, 0.40);
    backdrop-filter: blur(12px) saturate(150%);
    -webkit-backdrop-filter: blur(12px) saturate(150%);
    box-shadow:
        0 8px 24px rgba(0, 0, 0, 0.22),
        0 2px 12px rgba(124, 58, 237, 0.32),
        inset 0 1px 0 rgba(255, 255, 255, 0.48);
}

.hero-ask .input-wrap button:hover {
    filter: brightness(1.05);
    transform: translateY(-2px);
    box-shadow:
        0 14px 32px rgba(0, 0, 0, 0.26),
        0 4px 18px rgba(124, 58, 237, 0.42),
        inset 0 1px 0 rgba(255, 255, 255, 0.55);
}

.hero-ask .input-wrap button:active {
    transform: translateY(0);
    filter: brightness(0.98);
}

/* ─── CHIPS ─── */

.chips {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 20px;
}

.chip {
    font-size: 13px;
    font-weight: 600;
    font-family: inherit;
    color: var(--white);
    background: rgba(255, 255, 255, 0.07);
    border: 1px solid rgba(255, 255, 255, 0.15);
    padding: 9px 18px;
    border-radius: 99px;
    cursor: pointer;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
    position: relative;
    overflow: hidden;
}

.chip::before {
    content: '';
    position: absolute;
    left: 0;
    top: 0;
    bottom: 0;
    width: 3px;
}

.chip-iws::before {
    background: var(--iws);
}

.chip-pux::before {
    background: var(--pux);
}

.chip-aifl::before {
    background: var(--aifl);
}

.chip-fsa::before {
    background: var(--fsa);
}

.chip:hover {
    background: rgba(255, 255, 255, 0.13);
    border-color: rgba(255, 255, 255, 0.3);
    transform: translateY(-1px);
}

/* ─── PAIN-POINT PILLS (primary entry surface) ─── */

.pills {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-bottom: 18px;
    transition: opacity var(--transition);
}

.pill {
    font-size: 13px;
    font-weight: 500;
    font-family: inherit;
    color: rgba(255, 255, 255, 0.92);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.14);
    padding: 9px 16px;
    border-radius: 12px;
    cursor: pointer;
    text-align: left;
    line-height: 1.35;
    transition: background var(--transition), border-color var(--transition), transform var(--transition);
}

.pill:hover {
    background: rgba(167, 139, 250, 0.14);
    border-color: rgba(167, 139, 250, 0.5);
    transform: translateY(-1px);
}

.pill-more {
    color: rgba(255, 255, 255, 0.45);
    background: transparent;
    border-style: dashed;
    border-color: rgba(255, 255, 255, 0.18);
    font-weight: 600;
}

.pill-more:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(255, 255, 255, 0.3);
}

/* ─── EXPLORE (demoted construct shortcuts) ─── */

.explore {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px 12px;
    margin-bottom: 20px;
}

.explore-label {
    font-size: 12px;
    color: rgba(255, 255, 255, 0.35);
    font-weight: 500;
}

.chips-secondary {
    margin-bottom: 0;
}

.chips-secondary .chip {
    font-size: 12px;
    font-weight: 500;
    padding: 6px 13px;
    color: rgba(255, 255, 255, 0.7);
    background: rgba(255, 255, 255, 0.04);
}

.chips-secondary .chip:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

/* ─── TURN QUESTION (the visitor's anchored question) ─── */

/* Sits inside .response-inner already — no own width/padding, so it lines up
   flush-left with the answer body below it. */
.response-back {
    position: absolute;      /* pinned top-right of .response-inner, out of flow */
    top: 0;
    right: 0;
    display: flex;
    align-items: center;
    gap: 8px;
    margin: 0;
    padding: 8px 15px 8px 12px;
    font-family: inherit;
    font-size: 13px;
    font-weight: 600;
    letter-spacing: 0.01em;
    color: rgba(255, 255, 255, 0.6);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 99px;
    cursor: pointer;
    transition: color var(--transition), background var(--transition), border-color var(--transition);
}

.response-back:hover {
    color: var(--white);
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.22);
}

.response-back-arrow {
    font-size: 15px;
    line-height: 1;
    transition: transform var(--transition);
}

.response-back:hover .response-back-arrow {
    transform: translateX(-2px);
}

.turn-question {
    margin: 0 0 18px;
    padding-right: 120px;    /* clear of the top-right "Start over" button */
}

.tq-label {
    display: block;
    font-size: 11px;
    font-weight: 600;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    color: rgba(201, 184, 255, 0.92);
    margin-bottom: 8px;
}

.tq-text {
    display: block;
    font-size: 24px;
    font-weight: 600;
    line-height: 1.3;
    letter-spacing: -0.02em;
    color: var(--white);
}

/* ─── v5 CONTINUED QUESTION ─── */

.block-continued-question {
    margin-top: 4px;
}

.continued-question {
    font-size: 16px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.92);
    padding: 14px 18px;
    border-left: 2px solid rgba(167, 139, 250, 0.6);
    background: rgba(167, 139, 250, 0.06);
    border-radius: 0 8px 8px 0;
}

/* ─── RESPONSE AREA ─── */

/* Height follows the answer: a short answer sits well inside one screen (no
   page scroll), a long one grows past the viewport and the page scrolls then —
   and only then. The old min-height:60vh + 100px bottom padding overflowed by
   roughly the padding itself, so a short answer still showed a scrollbar. */
.response-area {
    padding: 40px 32px 48px;
}

.response-inner {
    position: relative;      /* anchor for the top-right "Start over" button */
    max-width: 1100px;
    margin: 0 auto;
    width: 100%;
}

/* Slim band stuck directly above the footer. Hidden until app.js reveals it
   once an answer is on screen, so it never shows on the bare hero. */
.response-disclaimer {
    display: none;
    padding: 22px 32px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    font-size: 11px;
    line-height: 1.6;
    color: rgba(255, 255, 255, 0.28);
    text-align: center;
}

.response-disclaimer a {
    color: rgba(255, 255, 255, 0.45);
    text-decoration: underline;
}

.response-disclaimer a:hover {
    color: rgba(255, 255, 255, 0.7);
}

/* ─── SCROLL CUE (desktop-only) ───
   Bouncing chip pinned bottom-centre while a response is on screen. Revealed by
   app.js (.is-visible) and faded out the instant the visitor scrolls
   (.is-dismissed). Hidden entirely on tablets/phones — touch users scroll by
   instinct and the fixed chip would fight the side rail / fab. */
.scroll-cue {
    position: fixed;
    left: 50%;
    bottom: 26px;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    font-size: 12px;
    font-weight: 600;
    letter-spacing: 0.06em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.72);
    background: rgba(20, 16, 40, 0.55);
    border: 1px solid rgba(255, 255, 255, 0.14);
    border-radius: 99px;
    backdrop-filter: blur(8px);
    -webkit-backdrop-filter: blur(8px);
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.4s ease, visibility 0.4s ease;
    z-index: 40;
}

.scroll-cue.is-visible {
    opacity: 1;
    visibility: visible;
}

/* Once the visitor scrolls, fade out and stay out for this answer. */
.scroll-cue.is-dismissed {
    opacity: 0;
    visibility: hidden;
}

.scroll-cue-arrow {
    font-size: 15px;
    line-height: 1;
    animation: scroll-cue-bob 1.4s ease-in-out infinite;
}

@keyframes scroll-cue-bob {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(4px); }
}

@media (prefers-reduced-motion: reduce) {
    .scroll-cue-arrow { animation: none; }
}

/* Touch / small screens: no fixed scroll cue. */
@media (max-width: 900px) {
    .scroll-cue { display: none !important; }
}

/* ─── THINKING ANIMATION ─── */

.thinking {
    padding: 40px 0 32px;
}

.thinking-nodes {
    display: flex;
    align-items: center;
    gap: 0;
}

.tnode {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    opacity: 0;
    transform: scale(0.85);
    transition: opacity 0.4s ease, transform 0.4s ease;
}

.tnode.visible {
    opacity: 1;
    transform: scale(1);
}

.tnode-dot {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.15);
    border: 2px solid rgba(255, 255, 255, 0.2);
    transition: background 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}

.tnode.active .tnode-dot {
    background: var(--purple-light);
    border-color: var(--purple-light);
    box-shadow: 0 0 12px rgba(159, 103, 245, 0.6);
    animation: nodePulse 1s ease infinite;
}

.tnode.done .tnode-dot {
    background: var(--teal-light);
    border-color: var(--teal-light);
    box-shadow: 0 0 8px rgba(20, 184, 166, 0.4);
}

@keyframes nodePulse {

    0%,
    100% {
        box-shadow: 0 0 12px rgba(159, 103, 245, 0.6);
    }

    50% {
        box-shadow: 0 0 20px rgba(159, 103, 245, 0.9);
    }
}

.tnode-label {
    font-size: 11px;
    font-weight: 500;
    color: rgba(255, 255, 255, 0.35);
    text-align: center;
    white-space: nowrap;
    transition: color 0.3s ease;
}

.tnode.active .tnode-label {
    color: var(--iws);
}

.tnode.done .tnode-label {
    color: rgba(255, 255, 255, 0.7);
}

.tnode-line {
    flex: 1;
    height: 1px;
    background: rgba(255, 255, 255, 0.1);
    min-width: 60px;
    max-width: 140px;
    margin-bottom: 24px;
    transition: background 0.4s ease;
    position: relative;
    overflow: hidden;
}

.tnode-line.active::after {
    content: '';
    position: absolute;
    left: -100%;
    top: 0;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, var(--purple-light), transparent);
    animation: lineFlow 0.8s ease forwards;
}

@keyframes lineFlow {
    to {
        left: 100%;
    }
}

.tnode-line.done {
    background: rgba(20, 184, 166, 0.4);
}

/* ─── RESPONSE CANVAS — two panel ─── */

.response-canvas {
    display: grid;
    grid-template-columns: 1fr 380px;
    gap: 32px;
    align-items: start;
}

@media (max-width: 900px) {
    .response-canvas {
        grid-template-columns: 1fr;
    }
}

/* ─── PROOF STACK ─── */

.proof-toggle-wrap {
    margin-top: 48px;
    padding-top: 24px;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.proof-toggle {
    font-size: 12px;
    font-weight: 500;
    font-family: inherit;
    color: rgba(255, 255, 255, 0.28);
    background: transparent;
    border: none;
    cursor: pointer;
    letter-spacing: 0.04em;
    transition: color var(--transition);
}

.proof-toggle:hover {
    color: rgba(255, 255, 255, 0.55);
}

.proof-stack {
    margin-top: 20px;
    padding: 20px;
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius);
    font-size: 12px;
    color: rgba(255, 255, 255, 0.4);
    font-family: 'Courier New', monospace;
}

.proof-stack h4 {
    font-size: 10px;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: rgba(255, 255, 255, 0.25);
    margin-bottom: 8px;
    margin-top: 16px;
    font-family: inherit;
}

.proof-stack h4:first-child {
    margin-top: 0;
}

.proof-stack p,
.proof-stack li {
    margin-bottom: 4px;
    line-height: 1.5;
}

.proof-stack ul {
    list-style: none;
    padding-left: 12px;
}

.proof-stack li::before {
    content: '→ ';
    color: var(--teal);
}

/* ─── FOOTER ─── */

.site-footer {
    /* One-row bookend: trust, copyright and social links share one baseline. */
    padding: 8px 32px;
    /* Clean bookend to the header: same dark material (#131320→#090910 family)
       and a single thin white hairline on top — the header's treatment
       mirrored, opaque so the page gradient can't seep. No drop shadow. */
    background: linear-gradient(180deg, #10101a 0%, #07070d 100%);
    border-top: 1px solid rgba(255, 255, 255, 0.07);
    /* Pushed to the bottom of the body flex column when content is short. */
    margin-top: auto;
}

/* ─── FOOTER · ISO 27001 ─── */

.footer-trust {
    display: flex;
    align-items: center;
    flex: none;
    gap: 8px;
}

.footer-trust-mark {
    flex: none;
    width: 19px;
    height: 19px;
}

.footer-trust-text {
    font-size: 10.75px;
    line-height: 1.2;
    white-space: nowrap;
    color: rgba(255, 255, 255, 0.58);
}

.footer-trust-text strong {
    font-weight: 750;
    color: rgba(255, 255, 255, 0.9);
}

.footer-inner {
    /* Aligned to the wider shell column so the footer spans the same width as
       the header — its edges line up with the logo, past the hero text. */
    max-width: var(--shell-max);
    margin: 0 auto;
    display: grid;
    grid-template-columns: minmax(0, 1fr) auto auto;
    column-gap: 24px;
    align-items: center;
    font-size: 11.5px;
    letter-spacing: 0.01em;
    color: rgba(255, 255, 255, 0.46);
}

.footer-info {
    display: flex;
    gap: 24px;
    align-items: center;
}

.footer-info a {
    color: rgba(255, 255, 255, 0.62);
    text-decoration: none;
    transition: color var(--transition);
}

.footer-info a:hover {
    color: #ffffff;
}

/* ─── FOOTER · SOCIAL ─── */

.footer-social {
    display: flex;
    align-items: center;
    gap: 12px;
}

.social-link {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 31px;
    height: 31px;
    border-radius: 50%;
    color: rgba(255, 255, 255, 0.45);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.09);
    transition: color var(--transition), background var(--transition),
        border-color var(--transition), transform var(--transition),
        box-shadow var(--transition);
}

.social-link svg {
    width: 15px;
    height: 15px;
}

.social-link:hover {
    color: #ffffff;
    transform: translateY(-2px);
    border-color: var(--social-accent, rgba(255, 255, 255, 0.4));
    background: var(--social-accent, rgba(255, 255, 255, 0.14));
    box-shadow: 0 6px 18px var(--social-glow, rgba(0, 0, 0, 0.4));
}

.social-linkedin  { --social-accent: #0a66c2; --social-glow: rgba(10, 102, 194, 0.45); }
.social-youtube   { --social-accent: #ff0000; --social-glow: rgba(255, 0, 0, 0.4); }
/* Instagram uses its signature gradient on hover. */
.social-instagram:hover {
    background: linear-gradient(45deg, #feda75, #fa7e1e, #d62976, #962fbf, #4f5bd5);
    border-color: #d62976;
    box-shadow: 0 6px 18px rgba(214, 41, 118, 0.45);
}

/* ─── RESPONSIVE ─── */

@media (max-width: 768px) {
    .header-inner {
        padding: 12px 20px;
    }

    .footer-inner {
        /* The compact trust line stays intact; the three footer elements stack. */
        display: flex;
        flex-direction: column;
        align-items: center;
        text-align: center;
        gap: 12px;
    }

    .footer-trust {
        max-width: 100%;
        justify-content: center;
    }

    .footer-trust-text {
        max-width: 46ch;
        white-space: normal;
    }

    .site-footer {
        padding: 12px 20px;
    }

    .brand-name {
        font-size: 18px;
    }

    .brand-logo {
        height: 36px;
    }

    .hero {
        padding: 16px 0 30px;
        min-height: auto;
    }

    .hero-inner {
        gap: 26px;
        padding: 0 20px;
    }

    .hero-copy {
        max-width: none;
    }

    .hero.compressed {
        padding: 20px;
    }

    .hero-headline {
        font-size: clamp(34px, 10vw, 52px);
        line-height: 1.08;
    }

    .hero-sub {
        font-size: 14px;
        line-height: 1.55;
        white-space: normal;   /* wrap on phones — the desktop one-liner won't fit */
    }

    /* Keep field + button on one row; tighten both. */
    .hero-ask .input-wrap {
        gap: 10px;
    }

    .hero-ask .input-wrap input {
        padding: 16px 14px;
        font-size: 15px;
    }

    .hero-ask .input-wrap button {
        min-width: 96px;
        padding: 0 18px;
        font-size: 14px;
    }

    .response-area {
        padding: 32px 20px 40px;
    }

    .pills {
        margin-bottom: 14px;
    }

    /* Phones: the button goes back into flow, top-left above the heading — the
       top-right absolute corner is too cramped next to a full-width wrapped
       heading. */
    .response-back {
        position: static;
        width: fit-content;
        margin: 0 0 14px 0;
    }

    .turn-question {
        margin-bottom: 22px;
        padding-right: 0;
    }

    .tq-text {
        font-size: 19px;
    }

    .construct-cards-grid {
        grid-template-columns: 1fr 1fr;
    }

    .people-grid {
        grid-template-columns: 1fr;
    }

    .thinking-nodes {
        gap: 0;
    }

    .tnode-line {
        min-width: 30px;
    }

    .response-canvas {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    /* ── Ask: field over a full-width button ──
       Side-by-side, the Ask button ate most of the narrow row. Stack it under
       the field as a full-width tap target. */
    .hero-ask .input-wrap {
        flex-direction: column;
        align-items: stretch;
        gap: 12px;
    }

    .hero-ask .input-wrap input {
        padding: 16px 18px;
        font-size: 16px;
    }

    .hero-ask .input-wrap button {
        width: 100%;
        min-width: 0;
        padding: 15px 20px;
        font-size: 16px;
    }

    /* ── Thinking: horizontal timeline → vertical ──
       Three nowrap labels in a row overflowed the viewport (sideways scroll
       while loading). Stack them into a vertical timeline: dot + label per row,
       a short connector between, so nothing spills past the edge. */
    .thinking {
        padding: 28px 0 22px;
    }

    .thinking-nodes {
        flex-direction: column;
        align-items: stretch;
        gap: 0;
    }

    .tnode {
        flex-direction: row;
        align-items: center;
        justify-content: flex-start;
        gap: 13px;
        transform: translateX(-8px);
    }

    .tnode.visible {
        transform: translateX(0);
    }

    .tnode-dot {
        flex: 0 0 auto;
    }

    .tnode-label {
        white-space: normal;
        text-align: left;
        font-size: 13px;
    }

    .tnode-line {
        width: 1px;
        height: 16px;
        min-width: 0;
        max-width: none;
        /* Sit under the 14px dot's centre (7px) less the 1px line width. */
        margin: 3px 0 3px 6px;
        flex: 0 0 auto;
    }
}

@media (max-width: 480px) {
    .construct-cards-grid {
        grid-template-columns: 1fr;
    }

    .chips {
        gap: 8px;
    }

    .chip {
        font-size: 12px;
        padding: 8px 14px;
    }

    .pills {
        gap: 8px;
    }

    .pill {
        font-size: 12px;
        padding: 9px 13px;
    }

    .explore {
        gap: 6px 10px;
    }
}