/* Trinity Medical brand palette - Brand Guideline */
@font-face {
    font-family: "IBM Plex Sans";
    src: url("../fonts/IBMPlexSans-Light.woff2") format("woff2");
    font-style: normal;
    font-weight: 300;
    font-display: swap;
}

@font-face {
    font-family: "IBM Plex Sans";
    src: url("../fonts/IBMPlexSans-Regular.woff2") format("woff2");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: "IBM Plex Sans";
    src: url("../fonts/IBMPlexSans-Medium.woff2") format("woff2");
    font-style: normal;
    font-weight: 500;
    font-display: swap;
}

@font-face {
    font-family: "IBM Plex Sans";
    src: url("../fonts/IBMPlexSans-SemiBold.woff2") format("woff2");
    font-style: normal;
    font-weight: 600;
    font-display: swap;
}

@font-face {
    font-family: "IBM Plex Serif";
    src: url("../fonts/IBMPlexSerif-Italic.woff2") format("woff2");
    font-style: italic;
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: "IBM Plex Mono";
    src: url("../fonts/IBMPlexMono-Regular.woff2") format("woff2");
    font-style: normal;
    font-weight: 400;
    font-display: swap;
}

@font-face {
    font-family: "IBM Plex Mono";
    src: url("../fonts/IBMPlexMono-SemiBold.woff2") format("woff2");
    font-style: normal;
    font-weight: 600;
    font-display: swap;
}

:root {
    --brand-black: rgb(0, 0, 0);
    --brand-cyan: rgb(0, 200, 224);
    --brand-white: rgb(255, 255, 255);
    --brand-white-muted: rgba(255, 255, 255, 0.68);
    --brand-white-soft: rgba(255, 255, 255, 0.48);
    --brand-cyan-soft: rgba(0, 200, 224, 0.12);
    --brand-cyan-line: rgba(0, 200, 224, 0.34);

    --navy: var(--brand-black);
    --teal: var(--brand-cyan);
    --paper: var(--brand-white);
    --ink: var(--brand-black);
}

body {
    background: var(--brand-white);
    color: var(--brand-black);
}

.site-header {
    background: rgba(0, 0, 0, 0.95);
    border-bottom-color: var(--brand-cyan-line);
}

nav {
    color: var(--brand-white-muted);
}

nav a:hover {
    color: var(--brand-cyan);
}

.header-cta,
.primary-btn {
    background: var(--brand-cyan);
    color: var(--brand-black);
}

.hero {
    background-color: var(--brand-black);
    background-image: url("../images/background-home.webp");
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}

.hero:before {
    background: linear-gradient(
        90deg,
        rgba(0, 0, 0, .92) 0%,
        rgba(0, 0, 0, .76) 26%,
        rgba(0, 0, 0, .34) 48%,
        rgba(0, 0, 0, .08) 66%,
        transparent 78%
    );
    pointer-events: none;
}

.eyebrow,
.section-index {
    color: var(--brand-white-soft);
}

.eyebrow {
    color: var(--brand-white-muted);
}

.hero-copy > p,
.section-heading > p,
.research-copy p {
    color: var(--brand-white-muted);
}

.text-btn {
    color: var(--brand-white-muted);
}

.play {
    border-color: var(--brand-cyan-line);
}

.trust-line span {
    color: var(--brand-white-soft);
}

.trust-line strong {
    color: var(--brand-white-muted);
}

.trust-line i {
    background: var(--brand-cyan-line);
}

.scroll-note {
    color: var(--brand-white-soft);
}

.scroll-note span {
    color: var(--brand-cyan);
}

@media (width <= 900px) {
    .hero {
        background-position: 64% center;
    }

    .hero:before {
        background:
            linear-gradient(90deg, rgba(0, 0, 0, .94) 0%, rgba(0, 0, 0, .84) 42%, rgba(0, 0, 0, .50) 68%, rgba(0, 0, 0, .18) 100%),
            linear-gradient(180deg, transparent 58%, rgba(0, 0, 0, .34) 100%);
    }
}

@media (width <= 560px) {
    .hero {
        min-height: calc(100svh - 78px);
        background-position: 68% center;
    }

    .hero:before {
        background:
            linear-gradient(90deg, rgba(0, 0, 0, .95) 0%, rgba(0, 0, 0, .88) 58%, rgba(0, 0, 0, .62) 100%),
            linear-gradient(180deg, rgba(0, 0, 0, .12) 0%, transparent 52%, rgba(0, 0, 0, .48) 100%);
    }

    .hero-copy {
        padding-bottom: 70px;
    }
}

.statement,
.contact,
.applications {
    background: var(--brand-white);
    color: var(--brand-black);
}

.statement {
    background-color: var(--brand-white);
    background-image: url("../images/background-bloco1.webp");
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}

.applications {
    background-color: var(--brand-white);
    background-image: url("../images/background-bloco2.webp");
    background-position: center center;
    background-repeat: no-repeat;
    background-size: cover;
}

.statement p strong,
.applications h2 em,
.contact h2 em {
    color: var(--brand-cyan);
}

.technology,
.research {
    background: var(--brand-black);
}

.section-index.light {
    color: var(--brand-white-soft);
}

.tech-grid {
    --panel-line: rgba(0, 200, 224, 0.18);
    --panel-muted: rgba(0, 200, 224, 0.28);
    background: var(--panel-line);
    border: 1px solid var(--panel-line);
    gap: 1px;
}

.tech-card {
    background:
        linear-gradient(135deg, rgba(0, 200, 224, 0.04), transparent 55%),
        rgb(5, 9, 11);
    color: var(--brand-white);
    box-shadow: none;
    min-height: 520px;
    padding: 30px;
    overflow: hidden;
    isolation: isolate;
    transition:
        background-color 500ms cubic-bezier(.22, .61, .36, 1),
        color 500ms cubic-bezier(.22, .61, .36, 1);
}

.tech-card::before,
.tech-card::after {
    content: "";
    position: absolute;
    pointer-events: none;
}

.tech-card::before {
    inset: 0;
    z-index: -1;
    opacity: 0;
    background: var(--brand-cyan);
    transition: opacity 500ms cubic-bezier(.22, .61, .36, 1);
}

.tech-card::after {
    width: 24px;
    height: 24px;
    top: 12px;
    right: 12px;
    border-top: 1px solid var(--panel-line);
    border-right: 1px solid var(--panel-line);
    transition: border-color 500ms cubic-bezier(.22, .61, .36, 1);
}

.tech-card:hover::before,
.tech-card:focus-visible::before {
    opacity: 1;
}

.tech-card:focus-visible {
    outline: 1px solid var(--brand-cyan);
    outline-offset: -4px;
}

.tech-card:hover,
.tech-card:focus-visible {
    color: var(--brand-black);
}

.card-number {
    color: var(--brand-cyan);
    letter-spacing: .2em;
    transition: color 500ms cubic-bezier(.22, .61, .36, 1);
}

.tech-card p {
    color: var(--brand-white-muted);
    max-width: 350px;
    margin-bottom: 0;
    font-size: 14px;
    line-height: 1.7;
    transition: color 500ms cubic-bezier(.22, .61, .36, 1);
}

.tech-card h3 {
    margin: 0 0 10px;
    font-size: 22px;
    font-weight: 500;
}

.tech-card:hover .card-number,
.tech-card:focus-visible .card-number,
.tech-card:hover p,
.tech-card:focus-visible p {
    color: var(--brand-black);
}

.tech-visual {
    color: var(--brand-cyan);
    width: calc(100% + 12px);
    height: 260px;
    margin: 18px -6px 22px;
    display: grid;
    place-items: center;
}

.tech-diagram {
    width: 100%;
    height: 100%;
    color: inherit;
    overflow: visible;
}

.tech-diagram path,
.tech-diagram circle {
    vector-effect: non-scaling-stroke;
}

.diagram-grid,
.diagram-muted,
.diagram-main,
.diagram-hologram,
.diagram-scan,
.diagram-points {
    stroke: currentColor;
    stroke-width: 1;
    stroke-linecap: round;
    stroke-linejoin: round;
    transition:
        opacity 500ms cubic-bezier(.22, .61, .36, 1),
        transform 500ms cubic-bezier(.22, .61, .36, 1);
    transform-origin: center;
}

.diagram-muted {
    opacity: .36;
}

.diagram-main {
    stroke-width: 1.35;
}

.diagram-hologram {
    opacity: .72;
    stroke-dasharray: 80;
    animation: tech-draw 5s ease-in-out infinite alternate;
}

.diagram-points {
    opacity: .8;
    animation: tech-pulse 3.8s ease-in-out infinite;
}

.diagram-scan {
    opacity: .65;
    animation: tech-scan 4.6s cubic-bezier(.22, .61, .36, 1) infinite alternate;
}

.diagram-orbit {
    transform-origin: center;
    animation: tech-orbit 24s linear infinite;
}

.tech-card:hover .tech-visual,
.tech-card:focus-visible .tech-visual {
    color: var(--brand-black);
}

.tech-card:hover .diagram-muted,
.tech-card:focus-visible .diagram-muted {
    opacity: .5;
    transform: translateY(-3px);
}

.tech-card:hover .diagram-main,
.tech-card:focus-visible .diagram-main {
    transform: translateY(-4px);
}

.tech-card:hover::after,
.tech-card:focus-visible::after {
    border-color: rgba(0, 0, 0, .35);
}

.tech-card-copy {
    padding-right: 28px;
}

.tech-card-arrow {
    position: absolute;
    right: 28px;
    bottom: 28px;
    color: var(--brand-cyan);
    font-size: 18px;
    transition:
        color 500ms cubic-bezier(.22, .61, .36, 1),
        transform 500ms cubic-bezier(.22, .61, .36, 1);
}

.tech-card:hover .tech-card-arrow,
.tech-card:focus-visible .tech-card-arrow {
    color: var(--brand-black);
    transform: translate(4px, -2px);
}

@keyframes tech-orbit {
    to { transform: rotate(360deg); }
}

@keyframes tech-pulse {
    0%, 100% { opacity: .48; }
    50% { opacity: 1; }
}

@keyframes tech-scan {
    from { transform: translateY(-3px); opacity: .35; }
    to { transform: translateY(3px); opacity: .85; }
}

@keyframes tech-draw {
    from { stroke-dashoffset: 22; opacity: .42; }
    to { stroke-dashoffset: 0; opacity: .82; }
}

@media (width <= 900px) {
    .tech-card {
        min-height: 460px;
        padding: 30px;
    }

    .tech-visual {
        height: 230px;
        max-width: 520px;
        margin-inline: auto;
    }
}

@media (width <= 560px) {
    .tech-card {
        min-height: 430px;
        padding: 24px;
    }

    .tech-visual {
        width: 100%;
        height: 210px;
        margin: 12px 0 18px;
    }

    .tech-card h3 {
        font-size: 21px;
    }

    .tech-card p {
        font-size: 14px;
    }

    .tech-card-arrow {
        right: 22px;
        bottom: 22px;
    }
}

@media (hover: none) {
    .tech-card::before {
        opacity: 0;
    }

    .tech-card {
        color: var(--brand-white);
    }

    .tech-card .tech-visual,
    .tech-card .card-number,
    .tech-card .tech-card-arrow {
        color: var(--brand-cyan);
    }

    .tech-card p {
        color: var(--brand-white-muted);
    }
}

@media (prefers-reduced-motion: reduce) {
    .diagram-hologram,
    .diagram-points,
    .diagram-scan,
    .diagram-orbit {
        animation: none;
    }

    .tech-card,
    .tech-card::before,
    .tech-card::after,
    .tech-card *,
    .tech-card *::before,
    .tech-card *::after {
        transition-duration: 0.01ms !important;
    }
}

/* Final polish — stages 05/06: application, R&D and closing ------------- */
.applications {
    position: relative;
    isolation: isolate;
    overflow: hidden;
}

.applications::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    opacity: 0;
    background: url("../images/background-bloco2.webp") center / cover no-repeat;
    transition: opacity var(--duration-slow) var(--ease-premium);
}

.applications:has(.app-list article:hover)::before,
.applications:has(.app-list article:focus-visible)::before {
    opacity: .10;
}

.app-list article::after {
    transform: scaleX(.14);
}

.app-list article.active::after {
    transform: scaleX(.14);
}

.app-list article:hover::after,
.app-list article:focus-visible::after {
    transform: scaleX(1);
}

.app-list b {
    color: rgba(0, 0, 0, .78);
    transition: color var(--duration-fast) var(--ease-premium);
}

.app-list article:hover b,
.app-list article:focus-visible b {
    color: var(--brand-black);
}

.app-list article:hover strong,
.app-list article:focus-visible strong {
    transform: translate(4px, -2px);
}

.app-list article:focus-visible {
    outline: 1px solid var(--brand-cyan);
    outline-offset: 5px;
}

.timeline-track {
    transition-duration: 1000ms;
}

.timeline-step:nth-of-type(1) { transition-delay: 0ms; }
.timeline-step:nth-of-type(2) { transition-delay: 500ms; }
.timeline-step:nth-of-type(3) { transition-delay: 1000ms; }

.timeline-visual,
.timeline-main,
.timeline-muted {
    transition:
        color var(--duration-default) var(--ease-premium),
        opacity var(--duration-default) var(--ease-premium),
        transform var(--duration-default) var(--ease-premium);
    transform-origin: center;
}

.timeline-visual {
    opacity: .72;
}

.timeline-step:hover .timeline-visual,
.timeline-step:focus-visible .timeline-visual {
    opacity: 1;
}

.timeline-step:hover .timeline-main,
.timeline-step:focus-visible .timeline-main {
    transform: translateY(-2px);
}

.timeline-step:hover .timeline-muted,
.timeline-step:focus-visible .timeline-muted {
    opacity: .42;
}

.timeline-step:focus-visible {
    outline: 1px solid rgba(0, 200, 232, .38);
    outline-offset: 8px;
}

.statement,
.contact {
    position: relative;
    isolation: isolate;
    overflow: hidden;
}

.statement {
    background-image: linear-gradient(105deg, rgba(0, 200, 232, .06), transparent 34%);
}

.contact {
    background-image:
        radial-gradient(circle at 7% 58%, rgba(0, 200, 232, .06), transparent 28%),
        radial-gradient(circle at 93% 35%, rgba(0, 200, 232, .08), transparent 30%);
}

.statement::before,
.contact::before {
    content: "";
    position: absolute;
    inset: 0;
    z-index: -1;
    pointer-events: none;
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    opacity: .38;
    transform: translateY(3px);
    transition:
        opacity 1400ms var(--ease-premium),
        transform 1400ms var(--ease-premium);
}

.statement::before {
    background-image: url("../images/background-bloco1.webp");
}

.contact::before {
    background-image: url("../images/background-bloco6.webp");
}

.statement.is-visual-active::before,
.contact.is-visual-active::before {
    opacity: .65;
    transform: translateY(0);
}

.site-footer {
    border-top-color: rgba(0, 200, 232, .12);
}

@media (hover: none) {
    .applications::before {
        opacity: 0;
    }

    .app-list article.active::after {
        transform: scaleX(.38);
    }
}

@media (width <= 560px) {
    .statement::before {
        background-position: 42% center;
    }

    .contact::before {
        background-size: 100% auto;
    }

    .timeline-step:nth-of-type(1) { transition-delay: 0ms; }
    .timeline-step:nth-of-type(2) { transition-delay: 280ms; }
    .timeline-step:nth-of-type(3) { transition-delay: 560ms; }
}

@media (prefers-reduced-motion: reduce) {
    .statement::before,
    .contact::before {
        opacity: .65;
        transform: none;
        transition: none;
    }

    .timeline-step,
    .timeline-track,
    .timeline-visual,
    .timeline-main,
    .timeline-muted {
        transition: none;
    }
}

/* Footer refinement — final responsive cascade ------------------------- */
.site-footer {
    background-position: center 46%;
}

.footer-main {
    min-height: 0;
    padding-block: 38px 30px;
    grid-template-columns: minmax(220px, .82fr) minmax(330px, 1.15fr) minmax(300px, 1fr);
    gap: clamp(38px, 5vw, 76px);
}

.footer-logo { width: 136px; }

.footer-identity p {
    margin-top: 15px;
    font-size: 14px;
}

.footer-navigation {
    counter-reset: footer-link;
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    column-gap: 28px;
    width: 100%;
}

.footer-navigation > span,
.footer-contact > span {
    margin-bottom: 10px;
}

.footer-navigation > span { grid-column: 1 / -1; }

.footer-navigation a {
    counter-increment: footer-link;
    display: grid;
    grid-template-columns: 25px 1fr;
    align-items: center;
    width: 100%;
    padding: 10px 0 9px;
    border-top: 1px solid rgba(255, 255, 255, .10);
}

.footer-navigation a::before {
    content: "0" counter(footer-link);
    color: rgba(0, 200, 232, .64);
    font: 600 8px/1 var(--font-mono);
    letter-spacing: .08em;
}

.footer-navigation a::after {
    top: -1px;
    bottom: auto;
    transform-origin: left;
}

.footer-contact {
    min-width: 0;
    width: 100%;
}

.footer-contact a { padding: 11px 0; }

.footer-bottom {
    min-height: 50px;
    font-size: 10px;
}

@media (width <= 900px) {
    .footer-main {
        grid-template-columns: minmax(180px, .72fr) minmax(300px, 1.28fr);
        gap: 30px 42px;
        padding-block: 36px 28px;
    }

    .footer-identity { grid-column: auto; }
    .footer-contact { grid-column: 1 / -1; }
}

@media (width <= 560px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 30px;
        padding-block: 38px 30px;
    }

    .footer-navigation { column-gap: 20px; }
    .footer-contact { grid-column: auto; }

    .footer-bottom {
        gap: 12px;
        padding-block: 20px 24px;
    }
}

/* Hero background video ------------------------------------------------- */
.hero {
    isolation: isolate;
    overflow: hidden;
}

.hero-background-video {
    position: absolute;
    inset: 0;
    z-index: 0;
    width: 100%;
    height: 100%;
    max-width: none;
    object-fit: cover;
    object-position: center;
    pointer-events: none;
}

.hero::before {
    z-index: 1;
}

.hero-copy,
.hero .scroll-note {
    position: relative;
    z-index: 2;
}

@media (prefers-reduced-motion: reduce) {
    .hero-background-video {
        display: none;
    }
}

/* Contact dialog -------------------------------------------------------- */
.contact-dialog {
    width: min(720px, calc(100% - 32px));
    max-height: min(820px, calc(100dvh - 32px));
    margin: auto;
    padding: 0;
    overflow: auto;
    color: var(--brand-white);
    background:
        radial-gradient(circle at 92% 8%, rgba(0, 200, 232, .08), transparent 30%),
        var(--surface-dark);
    border: 1px solid rgba(0, 200, 232, .28);
    box-shadow: 0 30px 100px rgba(0, 0, 0, .72);
}

.contact-dialog::backdrop {
    background: rgba(0, 0, 0, .80);
    backdrop-filter: blur(8px);
}

.contact-dialog[open] {
    animation: contact-dialog-in var(--duration-default) var(--ease-premium) both;
}

.contact-form {
    padding: clamp(28px, 5vw, 48px);
}

.contact-dialog-heading {
    display: flex;
    align-items: flex-start;
    justify-content: space-between;
    gap: 32px;
    margin-bottom: 34px;
}

.contact-dialog-heading > div > span {
    color: var(--brand-cyan);
    font: 600 9px/1 var(--font-mono);
    letter-spacing: .20em;
}

.contact-dialog-heading h2 {
    margin: 15px 0 10px;
    color: var(--brand-white);
    font-size: clamp(34px, 5vw, 48px);
    font-weight: 300;
    letter-spacing: -.035em;
    line-height: 1;
}

.contact-dialog-heading p {
    max-width: 500px;
    margin: 0;
    color: var(--brand-white-muted);
    font-size: 14px;
    line-height: 1.6;
}

.contact-dialog-close {
    flex: 0 0 42px;
    width: 42px;
    height: 42px;
    color: var(--brand-white-muted);
    background: transparent;
    border: 1px solid rgba(255, 255, 255, .14);
    cursor: pointer;
    font-size: 27px;
    font-weight: 300;
    line-height: 1;
    transition:
        color var(--duration-fast) var(--ease-premium),
        border-color var(--duration-fast) var(--ease-premium),
        transform var(--duration-default) var(--ease-premium);
}

.contact-dialog-close:hover,
.contact-dialog-close:focus-visible {
    color: var(--brand-cyan);
    border-color: var(--brand-cyan);
    transform: rotate(4deg);
}

.contact-form-grid {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 20px;
}

.contact-field {
    display: grid;
    gap: 8px;
}

.contact-field-wide {
    grid-column: 1 / -1;
}

.contact-field > span {
    color: rgba(255, 255, 255, .62);
    font: 600 9px/1 var(--font-mono);
    letter-spacing: .14em;
    text-transform: uppercase;
}

.contact-field input,
.contact-field textarea {
    width: 100%;
    color: var(--brand-white);
    background: rgba(255, 255, 255, .035);
    border: 1px solid rgba(255, 255, 255, .16);
    outline: 0;
    font: 400 16px/1.4 var(--font-sans);
    transition:
        background-color var(--duration-fast) var(--ease-premium),
        border-color var(--duration-fast) var(--ease-premium),
        box-shadow var(--duration-fast) var(--ease-premium);
}

.contact-field input {
    height: 50px;
    padding: 0 15px;
}

.contact-field textarea {
    min-height: 126px;
    padding: 13px 15px;
    resize: vertical;
}

.contact-field input:focus,
.contact-field textarea:focus {
    background: rgba(0, 200, 232, .045);
    border-color: var(--brand-cyan);
    box-shadow: 0 0 0 3px rgba(0, 200, 232, .08);
}

.contact-field input.is-invalid,
.contact-field textarea.is-invalid {
    border-color: rgba(255, 145, 145, .82);
}

.contact-field small {
    min-height: 14px;
    color: rgba(255, 165, 165, .90);
    font-size: 11px;
    line-height: 1.25;
}

.contact-honeypot {
    position: absolute;
    left: -10000px;
    width: 1px;
    height: 1px;
    overflow: hidden;
}

.contact-antibot {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    justify-content: space-between;
    gap: 18px;
    min-height: 34px;
    margin-top: 8px;
}

.contact-antibot .cf-turnstile {
    flex: 1 1 auto;
    max-width: 300px;
}

.contact-antibot > span,
.contact-security-warning {
    margin: 0;
    color: rgba(255, 255, 255, .42);
    font: 500 9px/1.4 var(--font-mono);
    letter-spacing: .10em;
    text-transform: uppercase;
}

.contact-security-warning {
    color: rgba(255, 165, 165, .9);
}

.contact-turnstile-error {
    flex-basis: 100%;
    color: rgba(255, 165, 165, .9);
    font-size: 11px;
}

.contact-form-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 28px;
    margin-top: 12px;
}

.contact-form-status {
    flex: 1;
    margin: 0;
    color: var(--brand-white-muted);
    font-size: 13px;
    line-height: 1.45;
}

.contact-form-status.is-success { color: var(--brand-cyan); }
.contact-form-status.is-error { color: rgba(255, 165, 165, .95); }

.contact-submit {
    flex: 0 0 auto;
    min-width: 190px;
    min-height: 52px;
    cursor: pointer;
}

.contact-submit:disabled {
    cursor: wait;
    opacity: .60;
}

@keyframes contact-dialog-in {
    from { opacity: 0; transform: translateY(14px); }
    to { opacity: 1; transform: translateY(0); }
}

@media (width <= 560px) {
    .contact-dialog {
        width: calc(100% - 20px);
        max-height: calc(100dvh - 20px);
    }

    .contact-form-grid {
        grid-template-columns: 1fr;
        gap: 14px;
    }

    .contact-field-wide { grid-column: auto; }
    .contact-dialog-heading { margin-bottom: 26px; }

    .contact-form-footer {
        align-items: stretch;
        flex-direction: column;
        gap: 14px;
    }

    .contact-submit { width: 100%; }

    .contact-antibot {
        align-items: flex-start;
        flex-direction: column;
        gap: 8px;
    }
}

@media (prefers-reduced-motion: reduce) {
    .contact-dialog[open] { animation: none; }
}

/* Footer refinement: compact technical navigation ---------------------- */
.site-footer {
    background-position: center 46%;
}

.footer-main {
    min-height: 0;
    padding-block: 38px 30px;
    grid-template-columns: minmax(220px, .82fr) minmax(330px, 1.15fr) minmax(300px, 1fr);
    gap: clamp(38px, 5vw, 76px);
}

.footer-logo {
    width: 136px;
}

.footer-identity p {
    margin-top: 15px;
    font-size: 14px;
}

.footer-navigation {
    counter-reset: footer-link;
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    column-gap: 28px;
    width: 100%;
}

.footer-navigation > span {
    grid-column: 1 / -1;
    margin-bottom: 10px;
}

.footer-navigation a {
    counter-increment: footer-link;
    display: grid;
    grid-template-columns: 25px 1fr;
    align-items: center;
    width: 100%;
    padding: 10px 0 9px;
    border-top: 1px solid rgba(255, 255, 255, .10);
}

.footer-navigation a::before {
    content: "0" counter(footer-link);
    color: rgba(0, 200, 232, .64);
    font: 600 8px/1 var(--font-mono);
    letter-spacing: .08em;
}

.footer-navigation a::after {
    top: -1px;
    bottom: auto;
    transform-origin: left;
}

.footer-contact {
    min-width: 0;
    width: 100%;
}

.footer-contact > span {
    margin-bottom: 10px;
}

.footer-contact a {
    padding: 11px 0;
}

.footer-bottom {
    min-height: 50px;
    font-size: 10px;
}

@media (width <= 900px) {
    .footer-main {
        grid-template-columns: minmax(180px, .72fr) minmax(300px, 1.28fr);
        gap: 30px 42px;
        padding-block: 36px 28px;
    }

    .footer-identity {
        grid-column: auto;
    }

    .footer-contact {
        grid-column: 1 / -1;
    }
}

@media (width <= 560px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 30px;
        padding-block: 38px 30px;
    }

    .footer-navigation {
        column-gap: 20px;
    }

    .footer-contact {
        grid-column: auto;
    }

    .footer-bottom {
        gap: 12px;
        padding-block: 20px 24px;
    }
}

/* Final polish — stage 04: ecosystem panel and technical diagrams ------- */
.tech-grid {
    --panel-line: rgba(0, 200, 232, .12);
    background: var(--panel-line);
    border-color: var(--panel-line);
}

.tech-card {
    isolation: isolate;
    box-shadow: inset 0 0 0 1px transparent;
    transition:
        box-shadow var(--duration-default) var(--ease-premium),
        color var(--duration-default) var(--ease-premium);
}

.tech-card > * {
    position: relative;
    z-index: 1;
}

.tech-card::before {
    z-index: 0;
    background: radial-gradient(
        circle at 50% 45%,
        rgba(0, 200, 232, .06),
        transparent 60%
    );
    transition: opacity var(--duration-default) var(--ease-premium);
}

.tech-card::after {
    z-index: 2;
}

.tech-card:hover,
.tech-card:focus-visible {
    color: var(--brand-white);
    box-shadow: inset 0 0 0 1px rgba(0, 200, 232, .38);
}

.tech-card:hover::before,
.tech-card:focus-visible::before {
    opacity: 1;
}

.tech-card:hover::after,
.tech-card:focus-visible::after {
    border-color: rgba(0, 200, 232, .48);
}

.tech-card h3 {
    transition: transform var(--duration-default) var(--ease-premium);
}

.tech-card:hover h3,
.tech-card:focus-visible h3 {
    transform: translateY(-2px);
}

.tech-card:hover .card-number,
.tech-card:focus-visible .card-number,
.tech-card:hover .tech-card-arrow,
.tech-card:focus-visible .tech-card-arrow {
    color: var(--brand-cyan);
}

.tech-card:hover p,
.tech-card:focus-visible p {
    color: rgba(255, 255, 255, .82);
}

.tech-diagram {
    opacity: .68;
    transition:
        color var(--duration-default) var(--ease-premium),
        opacity var(--duration-default) var(--ease-premium);
}

.tech-card:hover .tech-diagram,
.tech-card:focus-visible .tech-diagram {
    color: var(--brand-cyan);
    opacity: 1;
}

.diagram-points {
    opacity: .34;
}

.tech-card:hover .diagram-points,
.tech-card:focus-visible .diagram-points {
    opacity: .9;
}

.diagram-hologram,
.diagram-points,
.diagram-scan,
.diagram-orbit {
    animation: none;
}

.tech-diagram-ar .diagram-orbit {
    animation: tech-orbit 22s linear infinite;
}

.tech-diagram-ar .diagram-points {
    animation: tech-pulse 6.2s ease-in-out infinite;
}

.tech-diagram-guide .diagram-muted path:first-of-type {
    animation: none;
}

.tech-diagram-guide .diagram-main circle {
    animation: none;
}

.tech-diagram-guide .diagram-scan {
    animation: tech-scan 4.6s var(--ease-premium) infinite alternate;
}

.tech-diagram-guide .diagram-orbit {
    animation: tech-orbit 24s linear infinite;
}

.tech-diagram-guide .diagram-points {
    opacity: .8;
    animation: tech-pulse 3.8s ease-in-out infinite;
}

.tech-diagram-knee .diagram-grid {
    animation: none;
}

.tech-diagram-knee .diagram-scan {
    animation: tech-scan 4.6s var(--ease-premium) infinite alternate;
}

.tech-diagram-knee .diagram-points {
    opacity: .8;
    animation: tech-pulse 3.8s ease-in-out infinite;
}

.tech-diagram-knee .diagram-orbit {
    animation: tech-orbit 24s linear infinite;
}

@keyframes guide-axis-flow {
    from { stroke-dashoffset: 0; opacity: .3; }
    to { stroke-dashoffset: -28; opacity: .48; }
}

@keyframes planning-grid-breathe {
    0%, 100% { opacity: .12; }
    50% { opacity: .24; }
}

@keyframes guide-target-scan {
    from { transform: translateX(-3px); opacity: .42; }
    to { transform: translateX(3px); opacity: .78; }
}

@media (hover: none) {
    .tech-card {
        box-shadow: inset 0 0 0 1px transparent;
    }

    .tech-card::before {
        opacity: 0;
    }

    .tech-card:focus-visible {
        box-shadow: inset 0 0 0 1px rgba(0, 200, 232, .38);
    }

    .tech-card:focus-visible::before {
        opacity: 1;
    }
}

@media (prefers-reduced-motion: reduce) {
    .tech-diagram-ar .diagram-orbit,
    .tech-diagram-ar .diagram-points,
    .tech-diagram-guide .diagram-muted path:first-of-type,
    .tech-diagram-guide .diagram-main circle,
    .tech-diagram-guide .diagram-scan,
    .tech-diagram-guide .diagram-orbit,
    .tech-diagram-guide .diagram-points,
    .tech-diagram-knee .diagram-grid,
    .tech-diagram-knee .diagram-scan,
    .tech-diagram-knee .diagram-points,
    .tech-diagram-knee .diagram-orbit {
        animation: none;
    }
}

/* Footer ------------------------------------------------------------------ */
.site-footer {
    display: block;
    min-height: 0;
    padding-block: 0;
    color: var(--brand-white);
    background-color: var(--brand-black);
    background-image:
        linear-gradient(90deg, rgba(0, 0, 0, .68) 0%, rgba(0, 0, 0, .76) 48%, rgba(0, 0, 0, .62) 100%),
        url("../images/background-bloco4.webp?v=20260904-1538");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
    border-top: 1px solid var(--brand-cyan-15);
    position: relative;
    overflow: hidden;
}

.site-footer::before {
    content: "";
    position: absolute;
    top: 0;
    left: var(--content-inset);
    width: 72px;
    height: 1px;
    background: var(--brand-cyan);
}

.footer-main {
    min-height: 270px;
    padding-block: 62px 54px;
    display: grid;
    grid-template-columns: minmax(260px, 1.3fr) minmax(150px, .55fr) minmax(290px, .8fr);
    align-items: start;
    gap: clamp(54px, 7vw, 120px);
}

.footer-identity p {
    max-width: 260px;
    margin: 24px 0 0;
    color: rgba(255, 255, 255, .58);
    font-size: 15px;
    line-height: 1.6;
}

.footer-brand {
    display: inline-flex;
    min-width: 0;
}

.footer-logo {
    width: 154px;
}

.footer-navigation,
.footer-contact {
    display: grid;
    align-content: start;
}

.footer-navigation {
    justify-self: start;
    gap: 0;
    color: rgba(255, 255, 255, .72);
    font-size: 14px;
}

.footer-navigation > span,
.footer-contact > span {
    margin-bottom: 20px;
    color: rgba(255, 255, 255, .38);
    font-family: var(--font-mono);
    font-size: 9px;
    font-weight: 600;
    letter-spacing: .2em;
}

.footer-navigation a {
    width: max-content;
    padding: 5px 0;
    position: relative;
    transition: color var(--duration-fast) var(--ease-premium);
}

.footer-navigation a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 3px;
    left: 0;
    height: 1px;
    background: var(--brand-cyan);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-default) var(--ease-premium);
}

.footer-navigation a:hover,
.footer-navigation a:focus-visible {
    color: var(--brand-white);
}

.footer-navigation a:hover::after,
.footer-navigation a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

.footer-contact {
    justify-self: end;
    min-width: 290px;
}

.footer-contact a {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 24px;
    padding: 14px 0;
    color: var(--brand-white);
    border-top: 1px solid rgba(255, 255, 255, .12);
    border-bottom: 1px solid rgba(255, 255, 255, .12);
    font-size: 14px;
    transition:
        color var(--duration-default) var(--ease-premium),
        border-color var(--duration-default) var(--ease-premium);
}

.footer-contact a:hover,
.footer-contact a:focus-visible {
    color: var(--brand-cyan);
    border-color: var(--brand-cyan-50);
}

.footer-contact b {
    color: var(--brand-cyan);
    font-size: 17px;
    font-weight: 400;
    transition: transform var(--duration-default) var(--ease-premium);
}

.footer-contact a:hover b,
.footer-contact a:focus-visible b {
    transform: translate(4px, -2px);
}

.footer-bottom {
    min-height: 66px;
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    gap: 30px;
    border-top: 1px solid rgba(255, 255, 255, .08);
    color: rgba(255, 255, 255, .42);
    font-size: 11px;
}

.footer-bottom > span:nth-child(2) {
    justify-self: center;
}

.footer-bottom > a {
    justify-self: end;
    display: inline-flex;
    align-items: center;
    gap: 9px;
    color: rgba(255, 255, 255, .58);
    transition: color var(--duration-fast) var(--ease-premium);
}

.footer-bottom > a:hover,
.footer-bottom > a:focus-visible {
    color: var(--brand-cyan);
}

.footer-bottom > a span {
    transition: transform var(--duration-default) var(--ease-premium);
}

.footer-bottom > a:hover span,
.footer-bottom > a:focus-visible span {
    transform: translateY(-3px);
}

.footer-status {
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

.footer-status i {
    width: 5px;
    height: 5px;
    background: var(--brand-cyan);
    box-shadow: 0 0 0 4px var(--brand-cyan-10);
}

@media (width <= 900px) {
    .footer-main {
        grid-template-columns: 1fr 1fr;
        min-height: 0;
        gap: 54px 40px;
    }

    .footer-identity {
        grid-column: 1 / -1;
    }

    .footer-contact {
        justify-self: stretch;
        min-width: 0;
    }
}

@media (width <= 560px) {
    .site-footer {
        padding-block: 0;
        text-align: left;
        background-position: 18% center;
    }

    .footer-main {
        grid-template-columns: 1fr;
        gap: 46px;
        padding-block: 54px 48px;
    }

    .footer-identity {
        grid-column: auto;
    }

    .footer-navigation {
        grid-template-columns: 1fr 1fr;
        width: 100%;
        row-gap: 3px;
    }

    .footer-navigation > span {
        grid-column: 1 / -1;
    }

    .footer-contact a {
        font-size: 13px;
    }

    .footer-bottom {
        grid-template-columns: 1fr;
        gap: 17px;
        padding-block: 28px 32px;
    }

    .footer-bottom > span:nth-child(2),
    .footer-bottom > a {
        justify-self: start;
    }
}

.app-list article {
    color: rgba(0, 0, 0, 0.55);
    border-color: var(--brand-cyan-line);
}

.app-list article:hover,
.app-list article.active {
    color: var(--brand-black);
    border-color: var(--brand-cyan);
}

.research-copy > a {
    color: var(--brand-cyan);
}

.research-steps div {
    border-color: var(--brand-cyan-line);
}

.research-steps b {
    color: var(--brand-cyan);
}

.research-steps span {
    color: var(--brand-white-muted);
}

.research-steps i {
    border-color: var(--brand-cyan-line);
}

.primary-btn.dark {
    background: var(--brand-black);
    color: var(--brand-white);
}

footer {
    background: var(--brand-black);
    border-top-color: var(--brand-cyan-line);
}

footer p,
footer > span {
    color: var(--brand-white-soft);
}

.header-logo,
.footer-logo {
    filter: none;
    mix-blend-mode: normal;
}

/* Keep future demonstration UI aligned with the same brand tokens. */
.demo-dialog {
    background: var(--brand-black);
    border-color: var(--brand-cyan-line);
}

.demo-form input {
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--brand-cyan-line);
}

.demo-form input:focus {
    border-color: var(--brand-cyan);
    box-shadow: 0 0 0 2px rgba(0, 200, 224, 0.18);
}

.demo-form > button {
    background: var(--brand-cyan);
    color: var(--brand-black);
}

.demo-form > button:hover {
    background: rgb(0, 200, 224);
}

/* Global design polish ----------------------------------------------------- */
:root {
    --brand-cyan: #00c8e8;
    --brand-cyan-10: rgba(0, 200, 232, .10);
    --brand-cyan-15: rgba(0, 200, 232, .15);
    --brand-cyan-25: rgba(0, 200, 232, .25);
    --brand-cyan-50: rgba(0, 200, 232, .50);
    --brand-black: #000;
    --brand-panel: #05090b;
    --brand-white: #fff;
    --brand-white-muted: rgba(255, 255, 255, .68);
    --brand-white-soft: rgba(255, 255, 255, .50);
    --surface-dark: #020406;
    --section-line: rgba(0, 200, 232, .08);
    --font-sans: "IBM Plex Sans", "Helvetica Neue", Arial, sans-serif;
    --font-serif: "IBM Plex Serif", Georgia, "Times New Roman", serif;
    --font-mono: "IBM Plex Mono", Consolas, monospace;
    --page-max-width: 1440px;
    --page-padding: clamp(24px, 5vw, 80px);
    --content-inset: max(var(--page-padding), calc((100vw - var(--page-max-width)) / 2));
    --ease-premium: cubic-bezier(.22, .61, .36, 1);
    --duration-fast: 280ms;
    --duration-default: 420ms;
    --duration-slow: 650ms;
}

html {
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-sans);
    font-size: 16px;
    text-rendering: optimizeLegibility;
}

a,
button {
    -webkit-tap-highlight-color: transparent;
}

a:focus-visible,
button:focus-visible,
[tabindex="0"]:focus-visible {
    outline: 1px solid var(--brand-cyan);
    outline-offset: 4px;
}

/* Header */
.site-header {
    position: sticky;
    top: 0;
    z-index: 100;
    width: 100%;
    height: 80px;
    padding: 0 var(--page-padding);
    background: var(--brand-black);
    border-bottom: 1px solid rgba(255, 255, 255, .08);
    transition:
        background-color var(--duration-default) var(--ease-premium),
        backdrop-filter var(--duration-default) var(--ease-premium);
}

.site-header.is-scrolled {
    background: rgba(0, 0, 0, .86);
    -webkit-backdrop-filter: blur(14px);
    backdrop-filter: blur(14px);
}

.header-inner {
    width: 100%;
    max-width: var(--page-max-width);
    height: 100%;
    margin: 0 auto;
    display: grid;
    grid-template-columns: 180px 1fr auto;
    align-items: center;
    gap: 36px;
}

.header-brand {
    min-width: 0;
}

.header-logo {
    width: 150px;
    height: auto;
}

.site-header nav {
    justify-self: center;
    display: flex;
    gap: 34px;
    color: rgba(255, 255, 255, .72);
    font-size: 14px;
    font-weight: 500;
    letter-spacing: -.01em;
}

.site-header nav a {
    position: relative;
    padding: 8px 0;
    transition: color var(--duration-fast) var(--ease-premium);
}

.site-header nav a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 2px;
    left: 0;
    height: 1px;
    background: var(--brand-cyan);
    transform: scaleX(0);
    transform-origin: right;
    transition: transform var(--duration-default) var(--ease-premium);
}

.site-header nav a:hover::after,
.site-header nav a:focus-visible::after {
    transform: scaleX(1);
    transform-origin: left;
}

.header-actions {
    gap: 14px;
}

.nav-toggle {
    display: none;
    width: 46px;
    height: 46px;
    cursor: pointer;
    border: 1px solid var(--brand-cyan-25);
    place-items: center;
    position: relative;
}

.nav-toggle i {
    width: 18px;
    height: 1px;
    background: var(--brand-cyan);
    position: absolute;
    transition: transform var(--duration-default) var(--ease-premium);
}

.nav-toggle i:first-of-type { transform: translateY(-4px); }
.nav-toggle i:last-of-type { transform: translateY(4px); }
.nav-toggle[aria-expanded="true"] i:first-of-type { transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] i:last-of-type { transform: rotate(-45deg); }

/* Reusable actions */
.header-cta,
.primary-btn,
.primary-btn.dark {
    min-height: 48px;
    height: 48px;
    padding: 0 22px;
    gap: 24px;
    background: var(--brand-cyan);
    color: var(--brand-black);
    border: 1px solid var(--brand-cyan);
    border-radius: 0 2px 2px 0;
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 600;
    letter-spacing: -.01em;
    transition:
        background-color var(--duration-default) var(--ease-premium),
        color var(--duration-default) var(--ease-premium),
        border-color var(--duration-default) var(--ease-premium);
}

.header-cta span,
.primary-btn span {
    display: inline-block;
    transition: transform var(--duration-default) var(--ease-premium);
}

.header-cta:hover,
.primary-btn:hover,
.primary-btn.dark:hover {
    background: transparent;
    color: var(--brand-cyan);
}

.header-cta:hover span,
.primary-btn:hover span {
    transform: translate(4px, -2px);
}

.text-btn {
    min-height: 44px;
    font-size: 13px;
    transition: color var(--duration-fast) var(--ease-premium);
}

.play {
    width: 38px;
    height: 38px;
    border-color: var(--brand-cyan-25);
    border-radius: 50%;
    color: var(--brand-cyan);
    position: relative;
    transition:
        border-color var(--duration-default) var(--ease-premium),
        transform var(--duration-default) var(--ease-premium);
}

.text-btn:hover .play {
    border-color: var(--brand-cyan);
    transform: translateX(3px);
}

/* Shared type and section rhythm */
.eyebrow,
.section-index {
    color: rgba(255, 255, 255, .50);
    font-family: var(--font-mono);
    font-size: 10px;
    font-weight: 600;
    letter-spacing: .22em;
    line-height: 1.5;
    text-transform: uppercase;
}

.section-index b {
    color: var(--brand-cyan);
    font-weight: inherit;
}

.card-number,
.timeline-number,
.app-list article > span,
.trust-line span,
.scroll-note {
    font-family: var(--font-mono);
}

.statement .section-index,
.applications .section-index,
.contact .section-index {
    color: rgba(0, 0, 0, .48);
}

.hero,
.statement,
.technology,
.applications,
.research,
.contact,
footer {
    padding-inline: var(--content-inset);
}

.hero {
    min-height: calc(100svh - 80px);
    grid-template-columns: 1fr;
}

.hero-copy {
    width: min(650px, 54vw);
    padding: clamp(80px, 10vh, 130px) 0;
}

.hero h1 {
    max-width: 760px;
    margin-bottom: 30px;
    font-size: clamp(54px, 5vw, 82px);
    font-weight: 400;
    letter-spacing: -.045em;
    line-height: .94;
}

.hero h1 em,
.statement p strong,
.applications h2 em,
.contact h2 em {
    font-family: var(--font-serif);
    font-style: italic;
    font-weight: 400;
}

.hero-copy > p {
    max-width: 560px;
    font-size: 16px;
    line-height: 1.65;
}

.hero-actions {
    margin-top: 34px;
}

.trust-line {
    margin-top: clamp(48px, 7vh, 72px);
}

.trust-line span {
    font-size: 10px;
}

.trust-line strong {
    font-size: 12px;
}

.statement {
    min-height: 480px;
    grid-template-columns: minmax(160px, 22%) 1fr;
    gap: 40px;
    padding-block: clamp(160px, 13vw, 210px);
    background-image:
        linear-gradient(rgba(255, 255, 255, .20), rgba(255, 255, 255, .20)),
        url("../images/background-bloco1.webp");
}

.statement p {
    max-width: 1050px;
    margin-bottom: 0;
    font-size: clamp(38px, 4vw, 62px);
    letter-spacing: -.035em;
    line-height: 1.02;
}

.technology {
    padding-block: clamp(130px, 10vw, 160px);
}

.section-heading {
    align-items: end;
    gap: 80px;
    margin-bottom: clamp(58px, 6vw, 86px);
}

.section-heading h2,
.applications h2,
.research h2,
.contact h2 {
    font-size: clamp(44px, 4.4vw, 68px);
    line-height: 1;
}

.section-heading > p {
    max-width: 390px;
    margin-bottom: 3px;
    font-size: 15px;
    line-height: 1.65;
}

/* Ecosystem: one technical panel split into three modules */
.tech-grid {
    --panel-line: rgba(0, 200, 232, .12);
    background: var(--panel-line);
    border-color: var(--panel-line);
}

.tech-card {
    min-height: 560px;
    padding: 38px 36px 36px;
}

.tech-visual {
    width: calc(115% + 12px);
    height: 286px;
    margin: 12px -7.5% 18px;
}

.tech-card h3 {
    font-size: 24px;
}

.tech-card p {
    font-size: 15px;
    line-height: 1.65;
}

/* Applications */
.applications {
    gap: clamp(60px, 8vw, 130px);
    padding-block: clamp(115px, 9vw, 140px);
}

.app-list article {
    min-height: 118px;
    height: auto;
    grid-template-columns: 48px 1fr 32px;
    border-color: rgba(0, 0, 0, .18);
    position: relative;
    overflow: hidden;
    transition:
        color var(--duration-default) var(--ease-premium),
        padding var(--duration-default) var(--ease-premium);
}

.app-list article::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: -1px;
    left: 0;
    height: 1px;
    background: var(--brand-cyan);
    transform: scaleX(.08);
    transform-origin: left;
    transition: transform var(--duration-slow) var(--ease-premium);
}

.app-list article:hover::after,
.app-list article.active::after {
    transform: scaleX(1);
}

.app-list article > span {
    color: rgba(0, 0, 0, .48);
    font-size: 10px;
    letter-spacing: .16em;
}

.app-list article div {
    display: grid;
    gap: 5px;
}

.app-list b {
    font-size: 27px;
}

.app-list small {
    font-size: 13px;
    line-height: 1.5;
}

.app-list strong {
    transition: transform var(--duration-default) var(--ease-premium);
}

.app-list article:hover strong {
    transform: translate(5px, -2px);
}

/* Research timeline */
.research {
    grid-template-columns: minmax(330px, .82fr) minmax(620px, 1.18fr);
    gap: clamp(70px, 8vw, 130px);
    padding-block: clamp(140px, 11vw, 170px);
}

.research-copy p {
    max-width: 540px;
    margin: 32px 0;
    font-size: 16px;
    line-height: 1.7;
}

.research h2.research-title-long {
    max-width: 760px;
    font-size: clamp(38px, 3.7vw, 58px);
    line-height: 1.04;
    letter-spacing: -0.035em;
}

.research-copy > a {
    display: inline-flex;
    gap: 7px;
    padding-bottom: 5px;
    border-bottom: 1px solid var(--brand-cyan-25);
    font-size: 13px;
    transition:
        border-color var(--duration-default) var(--ease-premium),
        gap var(--duration-default) var(--ease-premium);
}

.research-copy > a:hover {
    gap: 12px;
    border-color: var(--brand-cyan);
}

.research-timeline {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 28px;
    position: relative;
}

.timeline-track {
    position: absolute;
    top: 176px;
    right: 8%;
    left: 8%;
    height: 1px;
    overflow: hidden;
    background: repeating-linear-gradient(90deg, var(--brand-cyan-25) 0 5px, transparent 5px 10px);
}

.timeline-track::before,
.timeline-track::after,
.timeline-track i {
    content: "";
    position: absolute;
    top: -3px;
    width: 7px;
    height: 7px;
    background: var(--brand-black);
    border: 1px solid var(--brand-cyan-50);
}

.timeline-track::before { left: 0; }
.timeline-track i { left: calc(50% - 3px); }
.timeline-track::after { right: 0; }

.timeline-step {
    min-width: 0;
    position: relative;
}

.timeline-number {
    color: var(--brand-cyan);
    font: 600 10px/1 var(--font-mono, monospace);
    letter-spacing: .18em;
}

.timeline-visual {
    height: 165px;
    margin: 14px -8px 26px;
    color: var(--brand-cyan);
}

.timeline-visual svg {
    width: 100%;
    height: 100%;
}

.timeline-visual path,
.timeline-visual circle {
    vector-effect: non-scaling-stroke;
}

.timeline-main,
.timeline-muted {
    stroke: currentColor;
    stroke-linecap: round;
    stroke-linejoin: round;
}

.timeline-main { stroke-width: 1.2; }
.timeline-muted { opacity: .25; stroke-width: 1; }

.timeline-step h3 {
    margin: 0 0 8px;
    color: var(--brand-white);
    font-size: 17px;
    font-weight: 500;
}

.timeline-step p {
    margin: 0;
    color: var(--brand-white-soft);
    font-size: 13px;
    line-height: 1.5;
}

.js .research-timeline:not(.is-visible) .timeline-step {
    opacity: 0;
    transform: translateY(12px);
}

.js .research-timeline:not(.is-visible) .timeline-track {
    transform: scaleX(0);
}

.timeline-step,
.timeline-track {
    transition:
        opacity var(--duration-slow) var(--ease-premium),
        transform 900ms var(--ease-premium);
}

.timeline-track { transform-origin: left; }
.timeline-step:nth-of-type(2) { transition-delay: 100ms; }
.timeline-step:nth-of-type(3) { transition-delay: 350ms; }
.timeline-step:nth-of-type(4) { transition-delay: 600ms; }

/* Final CTA and footer */
.contact {
    padding-block: clamp(180px, 14vw, 220px);
    background-color: var(--brand-white);
    background-image: url("../images/background-bloco6.webp");
    background-position: center;
    background-repeat: no-repeat;
    background-size: cover;
}

.contact h2 {
    margin: 28px auto 50px;
    font-size: clamp(54px, 6vw, 90px);
    line-height: .96;
}

.contact .primary-btn {
    min-height: 52px;
    height: 52px;
}

footer {
    min-height: 112px;
    padding-block: 28px;
    border-top-color: rgba(255, 255, 255, .08);
}

.footer-logo {
    width: 145px;
    height: auto;
}

footer p,
footer > span {
    color: rgba(255, 255, 255, .50);
    font-size: 12px;
}

@media (width <= 1100px) {
    .header-inner {
        grid-template-columns: 160px 1fr auto;
        gap: 22px;
    }

    .site-header nav { gap: 24px; }
    .header-cta { gap: 14px; padding-inline: 18px; }

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

    .research-timeline {
        margin-top: 36px;
    }
}

@media (width <= 900px) {
    :root {
        --content-inset: var(--page-padding);
    }

    html { scroll-padding-top: 72px; }

    .site-header {
        height: 72px;
    }

    .header-inner {
        grid-template-columns: 1fr auto;
    }

    .header-logo {
        width: 136px;
    }

    .nav-toggle {
        display: grid;
    }

    .site-header nav {
        position: absolute;
        top: 72px;
        grid-column: 1 / -1;
        right: auto;
        left: 0;
        width: 100%;
        display: grid;
        justify-items: start;
        gap: 0;
        padding: 18px var(--page-padding) 24px;
        background: rgba(0, 0, 0, .96);
        border-bottom: 1px solid rgba(255, 255, 255, .08);
        opacity: 0;
        visibility: hidden;
        transform: translateY(-8px);
        transition:
            opacity var(--duration-fast) var(--ease-premium),
            transform var(--duration-default) var(--ease-premium),
            visibility var(--duration-default);
    }

    .site-header nav.is-open {
        opacity: 1;
        visibility: visible;
        transform: translateY(0);
    }

    .site-header nav a {
        width: 100%;
        padding: 13px 0;
        border-bottom: 1px solid rgba(255, 255, 255, .06);
    }

    .hero {
        min-height: calc(100svh - 72px);
        background-position: 66% center;
    }

    .hero-copy {
        width: min(640px, 82vw);
    }

    .statement {
        grid-template-columns: 1fr;
        padding-block: clamp(110px, 16vw, 150px);
    }

    .technology {
        padding-block: 110px;
    }

    .tech-card {
        min-height: 500px;
    }

    .tech-visual {
        width: min(112%, 620px);
        height: 275px;
        margin-inline: auto;
    }

    .applications,
    .research {
        padding-block: 110px;
    }

    .contact {
        padding-block: 140px;
    }
}

@media (width <= 560px) {
    .site-header {
        height: 68px;
    }

    .header-logo {
        width: 118px;
    }

    .site-header nav { top: 68px; }

    .header-cta {
        width: 46px;
        padding: 0;
        gap: 0;
        font-size: 0;
    }

    .header-cta span {
        font-size: 18px;
    }

    .hero {
        min-height: calc(100svh - 68px);
        background-position: 69% center;
    }

    .hero-copy {
        width: 100%;
        padding: 80px 0 70px;
    }

    .hero h1 {
        font-size: clamp(44px, 14vw, 60px);
    }

    .hero-copy > p {
        max-width: 92%;
        font-size: 16px;
    }

    .hero-actions {
        gap: 16px;
    }

    .primary-btn {
        width: 100%;
    }

    .statement {
        min-height: 0;
        gap: 30px;
        padding-block: 100px;
        background-position: 42% center;
    }

    .statement p {
        font-size: clamp(35px, 10vw, 44px);
        line-height: 1.04;
    }

    .technology,
    .applications,
    .research {
        padding-block: 90px;
    }

    .section-heading {
        margin-bottom: 48px;
    }

    .section-heading h2,
    .applications h2,
    .research h2 {
        font-size: clamp(38px, 11vw, 48px);
    }

    .section-heading > p {
        margin-top: 28px;
        font-size: 15px;
    }

    .tech-card {
        min-height: 460px;
        padding: 26px 24px 28px;
    }

    .tech-visual {
        width: 108%;
        height: 230px;
        margin: 8px -4% 18px;
    }

    .tech-card h3 { font-size: 22px; }
    .tech-card p { font-size: 14px; }

    .applications {
        gap: 54px;
    }

    .app-list article {
        min-height: 126px;
    }

    .research-timeline {
        grid-template-columns: 1fr;
        gap: 46px;
        margin-top: 52px;
        padding-left: 28px;
    }

    .timeline-track {
        top: 12px;
        bottom: 12px;
        left: 3px;
        width: 1px;
        height: auto;
        background: repeating-linear-gradient(180deg, var(--brand-cyan-25) 0 5px, transparent 5px 10px);
    }

    .timeline-track::before,
    .timeline-track::after,
    .timeline-track i {
        left: -3px;
    }

    .timeline-track::before { top: 0; }
    .timeline-track i { top: calc(50% - 3px); }
    .timeline-track::after { top: auto; right: auto; bottom: 0; }

    .timeline-visual {
        width: min(100%, 310px);
        height: 180px;
        margin: 14px 0 18px;
    }

    .timeline-step h3 { font-size: 19px; }
    .timeline-step p { font-size: 14px; }

    .contact {
        padding-block: 120px;
        background-size: 100% auto;
    }

    .contact h2 {
        font-size: clamp(46px, 13vw, 60px);
    }

    .contact .primary-btn {
        width: auto;
        min-width: min(100%, 260px);
    }

    footer {
        min-height: 0;
        padding-block: 38px;
    }

    footer p,
    footer > span {
        font-size: 12px;
    }
}

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

    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: .01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: .01ms !important;
    }

    .js .research-timeline:not(.is-visible) .timeline-step,
    .js .research-timeline:not(.is-visible) .timeline-track {
        opacity: 1;
        transform: none;
    }
}

/* Final polish — stage 01: depth and section transitions ----------------- */
.technology,
.research {
    background-color: var(--surface-dark);
    background-repeat: no-repeat;
}

.technology {
    background-image:
        radial-gradient(circle at 78% 34%, rgba(0, 200, 232, .045), transparent 36%),
        radial-gradient(circle at 18% 82%, rgba(0, 200, 232, .025), transparent 30%);
}

.research {
    background-image:
        radial-gradient(circle at 66% 48%, rgba(0, 200, 232, .042), transparent 34%),
        radial-gradient(circle at 8% 18%, rgba(255, 255, 255, .018), transparent 28%);
}

.statement,
.technology,
.applications,
.research,
.contact,
.site-footer {
    border-top: 1px solid var(--section-line);
}

.statement,
.applications,
.contact {
    border-top-color: rgba(0, 200, 232, .10);
}

/* Final polish — stage 02: navigation and action states ------------------ */
.site-header nav a {
    opacity: 1;
    transition:
        color var(--duration-fast) var(--ease-premium),
        opacity var(--duration-fast) var(--ease-premium);
}

@media (hover: hover) and (width > 900px) {
    .site-header nav:hover a:not(:hover) {
        opacity: .46;
    }
}

.header-cta,
.primary-btn,
.primary-btn.dark {
    position: relative;
    isolation: isolate;
    overflow: hidden;
}

.header-cta::before,
.primary-btn::before {
    content: "";
    position: absolute;
    inset: 1px;
    z-index: -1;
    pointer-events: none;
    opacity: .32;
    background: linear-gradient(110deg, rgba(255, 255, 255, .16), transparent 46%);
    transition: opacity var(--duration-default) var(--ease-premium);
}

.header-cta:hover::before,
.header-cta:focus-visible::before,
.primary-btn:hover::before,
.primary-btn:focus-visible::before {
    opacity: 0;
}

.header-cta:hover span,
.header-cta:focus-visible span,
.primary-btn:hover span,
.primary-btn:focus-visible span {
    transform: translateX(4px);
}

.text-btn {
    position: relative;
}

.text-btn::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 2px;
    left: 49px;
    height: 1px;
    background: var(--brand-cyan);
    opacity: .5;
    transform: scaleX(.28);
    transform-origin: left;
    transition:
        opacity var(--duration-fast) var(--ease-premium),
        transform var(--duration-default) var(--ease-premium);
}

.text-btn:hover,
.text-btn:focus-visible {
    color: var(--brand-white);
}

.text-btn:hover::after,
.text-btn:focus-visible::after {
    opacity: 1;
    transform: scaleX(1);
}

.research-copy > a {
    border-bottom: 0;
    position: relative;
}

.research-copy > a::after {
    content: "";
    position: absolute;
    right: 0;
    bottom: 0;
    left: 0;
    height: 1px;
    background: var(--brand-cyan);
    transform: scaleX(.34);
    transform-origin: left;
    transition: transform var(--duration-default) var(--ease-premium);
}

.research-copy > a:hover,
.research-copy > a:focus-visible {
    gap: 7px;
}

.research-copy > a:hover::after,
.research-copy > a:focus-visible::after {
    transform: scaleX(1);
}

.research-copy > a span {
    display: inline-block;
    transition: transform var(--duration-default) var(--ease-premium);
}

.research-copy > a:hover span,
.research-copy > a:focus-visible span {
    transform: translateX(3px);
}

/* Final polish — stage 03: scroll rhythm and light surfaces ------------- */
body::after {
    content: "";
    position: fixed;
    inset: 0;
    z-index: 9999;
    pointer-events: none;
    opacity: .025;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 160 160' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='.62'/%3E%3C/svg%3E");
    background-size: 160px 160px;
    mix-blend-mode: soft-light;
}

.statement {
    background-image:
        linear-gradient(105deg, rgba(0, 200, 232, .06), transparent 34%),
        linear-gradient(rgba(255, 255, 255, .12), rgba(255, 255, 255, .12)),
        url("../images/background-bloco1.webp");
}

.applications {
    background-image:
        radial-gradient(circle at 86% 50%, rgba(0, 200, 232, .10), transparent 34%),
        linear-gradient(90deg, rgba(0, 200, 232, .06), transparent 42%),
        url("../images/background-bloco2.webp");
}

.js [data-reveal] {
    opacity: 0;
    transform: translateY(18px);
    transition:
        opacity 700ms var(--ease-premium),
        transform 700ms var(--ease-premium);
    transition-delay: calc(var(--reveal-delay, 0) * 80ms);
    will-change: opacity, transform;
}

.js [data-reveal-delay="1"] { --reveal-delay: 1; }
.js [data-reveal-delay="2"] { --reveal-delay: 2; }
.js [data-reveal-delay="3"] { --reveal-delay: 3; }

.js [data-reveal].is-visible {
    opacity: 1;
    transform: translateY(0);
    will-change: auto;
}

@media (width <= 700px) {
    .js [data-reveal] {
        transform: translateY(12px);
        transition-duration: 580ms;
    }
}

@media (prefers-reduced-motion: reduce) {
    body::after {
        position: absolute;
    }

    .js [data-reveal],
    .js [data-reveal].is-visible {
        opacity: 1;
        transform: none;
        transition: none;
        will-change: auto;
    }
}

/* Final polish — cascade consolidation ---------------------------------- */
.statement,
.contact,
.applications {
    isolation: isolate;
}

.statement > *,
.contact > *,
.applications > * {
    position: relative;
    z-index: 1;
}

.statement::before,
.contact::before,
.applications::before {
    z-index: 0;
}

.statement {
    background-image: linear-gradient(105deg, rgba(0, 200, 232, .06), transparent 34%);
}

.contact {
    background-image:
        radial-gradient(circle at 7% 58%, rgba(0, 200, 232, .06), transparent 28%),
        radial-gradient(circle at 93% 35%, rgba(0, 200, 232, .08), transparent 30%);
}

.app-list article::after,
.app-list article.active::after {
    transform: scaleX(.14);
}

.app-list article:hover::after,
.app-list article:focus-visible::after {
    transform: scaleX(1);
}

.app-list article:hover strong,
.app-list article:focus-visible strong {
    transform: translate(4px, -2px);
}

.timeline-track {
    transition-duration: 1000ms;
}

.timeline-step:nth-of-type(1) { transition-delay: 0ms; }
.timeline-step:nth-of-type(2) { transition-delay: 500ms; }
.timeline-step:nth-of-type(3) { transition-delay: 1000ms; }

.site-footer {
    border-top-color: rgba(0, 200, 232, .12);
    background-position: center 46%;
}

.footer-main {
    min-height: 0;
    padding-block: 38px 30px;
    grid-template-columns: minmax(220px, .82fr) minmax(330px, 1.15fr) minmax(300px, 1fr);
    gap: clamp(38px, 5vw, 76px);
}

.footer-logo { width: 136px; }

.footer-identity p {
    margin-top: 15px;
    font-size: 14px;
}

.footer-navigation {
    counter-reset: footer-link;
    grid-template-columns: repeat(2, minmax(120px, 1fr));
    column-gap: 28px;
    width: 100%;
}

.footer-navigation > span,
.footer-contact > span {
    margin-bottom: 10px;
}

.footer-navigation > span { grid-column: 1 / -1; }

.footer-navigation a {
    counter-increment: footer-link;
    display: grid;
    grid-template-columns: 25px 1fr;
    align-items: center;
    width: 100%;
    padding: 10px 0 9px;
    border-top: 1px solid rgba(255, 255, 255, .10);
}

.footer-navigation a::before {
    content: "0" counter(footer-link);
    color: rgba(0, 200, 232, .64);
    font: 600 8px/1 var(--font-mono);
    letter-spacing: .08em;
}

.footer-navigation a::after {
    top: -1px;
    bottom: auto;
    transform-origin: left;
}

.footer-contact {
    min-width: 0;
    width: 100%;
}

.footer-contact a { padding: 11px 0; }

.footer-bottom {
    min-height: 50px;
    font-size: 10px;
}

@media (width <= 900px) {
    .footer-main {
        grid-template-columns: minmax(180px, .72fr) minmax(300px, 1.28fr);
        gap: 30px 42px;
        padding-block: 36px 28px;
    }

    .footer-identity { grid-column: auto; }
    .footer-contact { grid-column: 1 / -1; }
}

@media (width <= 560px) {
    .footer-main {
        grid-template-columns: 1fr;
        gap: 30px;
        padding-block: 38px 30px;
    }

    .footer-navigation { column-gap: 20px; }
    .footer-contact { grid-column: auto; }

    .footer-bottom {
        gap: 12px;
        padding-block: 20px 24px;
    }
}

@media (hover: none) {
    .app-list article.active::after {
        transform: scaleX(.38);
    }
}

@media (width <= 560px) {
    .timeline-step:nth-of-type(1) { transition-delay: 0ms; }
    .timeline-step:nth-of-type(2) { transition-delay: 280ms; }
    .timeline-step:nth-of-type(3) { transition-delay: 560ms; }
}

@media (prefers-reduced-motion: reduce) {
    .statement::before,
    .contact::before {
        opacity: .65;
        transform: none;
        transition: none;
    }

    .timeline-step,
    .timeline-track,
    .timeline-visual,
    .timeline-main,
    .timeline-muted {
        transition: none;
    }
}