:root {
    --c-start: #6FDFFF;
    --c-end: #999999;
    --text: #111111;
    --muted: #555555;
    --bg: #ffffff;
    --header-h: 80px;
    --radius: 32px;
    --font: 'Space Grotesk', 'Inter', 'Helvetica Neue', Arial, sans-serif;
    --btn-shadow: 0 10px 24px 0 rgba(0, 0, 0, 0.15);
    --anm-aparecer: aparecer 0.6s ease-out both;
}

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

body {
    margin: 0;
    font-family: var(--font);
    color: var(--text);
}

a {
    all: unset;
}

a:focus-visible {
    outline: 2px solid var(--text);
    outline-offset: 4px;
}



header {
    position: sticky;
    top: 0;
    z-index: 100;
    box-sizing: border-box;
    height: var(--header-h);
    padding: 10px 24px;
    background-color: var(--bg);
    display: grid;
    grid-template-columns: 1fr auto 1fr;
    align-items: center;
    box-shadow: 0 20px 30px -15px rgba(0, 0, 0, 0.16);
    animation: header-aparecer 0.6s ease both;
}

header .logo {
    display: block;
    height: 50px;
    width: auto;
    cursor: pointer;
}

header nav {
    justify-content: start;
}

header nav a {
    padding: 14px 28px;
    border-radius: 999px;
    color: var(--text);
    text-decoration: none;
    font-weight: 500;
    transition: .3s ease;
}

header > .btn {
    justify-self: end;
    display: inline-flex;
    align-items: center;
    gap: 10px;
}

header > .btn p {
    margin: 0;
}

header > .btn i {
    font-size: 1.2rem;
}

header nav .nav-links {
    display: flex;
    gap: 2px;
}

.menu-toggle {
    display: none;
    padding: 8px;
    border: 0;
    background: none;
    cursor: pointer;
}

.menu-toggle span {
    display: block;
    width: 24px;
    height: 2px;
    border-radius: 2px;
    background: var(--text);
    transition: transform .3s, opacity .2s;
}

.menu-toggle span + span {
    margin-top: 5px;
}

@keyframes header-aparecer {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translate(0px);
    }
}



.bg-glows {
    position: fixed;
    inset: 0;
    z-index: -1;
    overflow: hidden;
    pointer-events: none;
    background: var(--bg);
}

.glow {
    position: absolute;
    border-radius: 50%;
}

.glow-1 {
    width: 70vmax;
    height: 70vmax;
    top: -25vmax;
    left: -20vmax;
    background: radial-gradient(circle, var(--c-start) 0%, transparent 65%);
    opacity: 0.7;
}

.glow-2 {
    width: 65vmax;
    height: 65vmax;
    bottom: -25vmax;
    right: -15vmax;
    background: radial-gradient(circle, var(--c-end) 0%, transparent 65%);
    opacity: 0.45;
}

.glow-3 {
    width: 40vmax;
    height: 40vmax;
    top: 20vh;
    right: 5vw;
    background: radial-gradient(circle, var(--c-start) 0%, transparent 65%);
    opacity: 0.35;
}



.hero {
    min-height: calc(100svh - var(--header-h));
    box-sizing: border-box;
    padding: 48px 24px 1px;
    display: grid;
    grid-template-columns: repeat(2, auto);
    justify-content: center;
    align-items: center;
    gap: 48px;
    max-width: 1200px;
    margin: 0 auto;
}

.hero-slogan {
    animation: var(--anm-aparecer);
}

.hero-slogan h1 {
    margin: 0 0 16px;
    font-size: clamp(3.5rem, 6vw, 5rem);
    line-height: 1.05;
    font-weight: 700;
    letter-spacing: -0.02em;
}

.hero-slogan p {
    margin: 0 0 28px;
    max-width: 32ch;
    font-size: 1.15rem;
    color: var(--muted);
}

.btn {
    position: relative;
    display: inline-block;
    padding: 14px 28px;
    border-radius: 999px;
    background: var(--text);
    color: #fff;
    text-decoration: none;
    font-weight: 500;
    overflow: hidden;
    isolation: isolate;
    transition: .2s ease;
}

.btn::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    height: 100%;
    width: 0;
    background: #fff;
    z-index: -1;
    transition: .2s ease;
}



.hero-img {
    margin: 0;
    height: clamp(500px, 15vw, 1000px);
    width: auto;
    max-width: 100%;
    animation:
        var(--anm-aparecer),
        flotar 2.2s ease-in-out 0.9s infinite alternate;
}

@keyframes flotar {
    from { transform: translateY(8); }
    to   { transform: translateY(-8px); }
}

@keyframes aparecer {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}



.content {
    position: relative;
    background: var(--bg);
    border-radius: var(--radius);
    box-shadow:
        0 -20px 30px -15px rgba(0, 0, 0, 0.12),
        0 20px 30px -15px rgba(0, 0, 0, 0.12);
}

.section {
    max-width: 1100px;
    margin: 0 auto;
    padding: 96px 24px;
    scroll-margin-top: var(--header-h);
}

.section h2 {
    margin: 0 0 12px;
    font-size: clamp(1.8rem, 4vw, 2.8rem);
    letter-spacing: -0.01em;
}

.section > p.lead {
    margin: 0 0 40px;
    max-width: 55ch;
    color: var(--muted);
}

.cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 20px;
}

.projects {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(min(100%, 260px), 400px));
    justify-content: center;
    gap: 20px;
}

.card {
    padding: 24px;
    border: 1px solid #e5e5e5;
    border-radius: 20px;
    background: #fafafa;
    transform: perspective(800px) rotateX(var(--rx, 0deg)) rotateY(var(--ry, 0deg));
    transition: transform .15s ease-out;
    will-change: transform;
}

.card h3 {
    margin: 0 0 8px;
}

.card p {
    margin: 0; color: var(--muted);
}

.project-card {
    container-type: inline-size;
    display: flex;
    flex-direction: column;
    gap: 20px;
    align-items: center;
    justify-content: start;
    box-sizing: border-box;
    min-width: 0;
    padding: 20px 16px;
    border: 1px solid #e5e5e5;
    border-radius: 20px;
    background: var(--bg);
    transition: .2s ease;
    animation: aparecer 0.6s ease-out backwards;
}

.project-name {
    display: flex;
    flex-wrap: nowrap;
    justify-content: center;
    align-items: center;
    gap: clamp(8px, 4cqw, 24px);
    max-width: 100%;
    margin: 0;
    padding: 0;
}

.project-name h3 {
    margin: 0;
    font-size: clamp(0.8rem, 6cqw, 2rem);
    white-space: nowrap;
}

.project-img {
    height: clamp(20px, 12cqw, 56px);
    width: auto;
    min-width: 0;
    max-width: 100%;
    object-fit: contain;
}

.project-card .btn {
    display: flex;
    align-items: center;
    justify-content: center;
    box-sizing: border-box;
    max-width: 100%;
    margin-top: auto;
    padding: 10px clamp(12px, 5cqw, 28px);
    white-space: nowrap;
}

.project-card .btn h4 {
    margin: 0;
    font-size: clamp(0.55rem, 5.5cqw, 1.1rem);
    font-weight: 500;
    line-height: 1.2;
    white-space: nowrap;
    text-align: center;
}

.gallery {
    --card-w: 380px;
    --off: 80%;
    display: grid;
    grid-template-columns: auto minmax(0, 1fr) auto;
    align-items: center;
    gap: 12px;
}

.gallery-track {
    position: relative;
    height: 300px;
    overflow: hidden;
    touch-action: pan-y;
}

.gallery-track .project-card {
    position: absolute;
    top: 50%;
    left: 50%;
    width: var(--card-w);
    cursor: pointer;
    opacity: 0;
    pointer-events: none;
    transform: translate(-50%, -50%) scale(0.6);
    transition:
        transform .5s cubic-bezier(.22, .8, .3, 1),
        opacity .5s ease,
        box-shadow .5s ease;
    will-change: transform;
}

.gallery-track .project-card.no-anim {
    transition: none;
}

.gallery-track .project-card[data-pos="0"] {
    transform: translate(-50%, -50%) scale(1.1);
    opacity: 1;
    z-index: 3;
    cursor: default;
    pointer-events: auto;
    box-shadow: 0 20px 40px -10px rgba(0, 0, 0, 0.2);
}

.gallery-track .project-card[data-pos="-1"] {
    transform: translate(calc(-50% - var(--off)), -50%) scale(0.8);
    opacity: 0.55;
    z-index: 2;
    pointer-events: auto;
}
.gallery-track .project-card[data-pos="1"] {
    transform: translate(calc(-50% + var(--off)), -50%) scale(0.8);
    opacity: 0.55;
    z-index: 2;
    pointer-events: auto;
}

.gallery-track .project-card[data-pos="-2"] {
    transform: translate(calc(-50% - var(--off) * 1.6), -50%) scale(0.6);
    z-index: 1;
}
.gallery-track .project-card[data-pos="2"] {
    transform: translate(calc(-50% + var(--off) * 1.6), -50%) scale(0.6);
    z-index: 1;
}

.gallery-track .project-card:not([data-pos="0"]) .btn {
    pointer-events: none;
}

.gallery-btn {
    display: grid;
    place-items: center;
    width: 44px;
    height: 44px;
    border: 0;
    border-radius: 50%;
    background: var(--text);
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    box-shadow: var(--btn-shadow);
    transition: .2s ease;
}

.gallery-btn:focus-visible {
    outline: 2px solid var(--c-start);
    outline-offset: 3px;
}



.step-number {
    display: block;
    margin-bottom: 8px;
    font-size: 2rem;
    font-weight: 300;
    color: var(--c-end);
}



#tuya h2{
    line-height: 1;
}

#tuya h2 span {
    display: block;
    font-size: clamp(1.25rem, 4vw, 3.5rem);
    color: var(--text);
    opacity: 0.85;
}

#tuya h2 strong {
    margin-top: -0.35em;
    display: block;
    font-size: clamp(3.5rem, 15vw, 9rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    background: linear-gradient(135deg, #6FDFFF, #999999);
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    filter: drop-shadow(0 0 30px rgba(111, 223, 255, 0.45));
}

#tuya p {
    max-width: 40ch;
    color: var(--muted);
    font-size: 1.1rem;
}



footer {
    display: grid;
    grid-template-columns: 1fr 1fr auto 1fr;
    align-items: start;
    gap: 32px;
    padding: 24px;
    color: var(--muted);
    border-top: 1px solid #e5e5e5;
}

footer h3 {
    margin: 0 0 12px;
    color: var(--text);
}

.footer-copy {
    justify-self: start;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
}

.footer-copy p {
    margin: 0;
}

.footer-img {
    margin: 0;
    display: block;
    max-height: 50px;
    height: 100%;
    width: auto;
}

.footer-conditions a {
    display: inline-block;
    transition: .3s ease;
}

.footer-conditions a:hover {
    color: var(--text);
    transform: translateX(4px);
}

.footer-sections {
    justify-self: center;
}

.footer-contact {
    justify-self: end;
}

.footer-contact address {
    font-style: normal;
}

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

.footer-contact i {
    width: 1.2em;
    text-align: center;
}

.footer-sections ul,
.footer-contact address ul {
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 10px;
    margin: 0 10px;
    padding: 0;
    list-style: none;
}

.footer-sections ul li,
.footer-contact address ul li {
    all: unset;
    transition: .3s ease;
}



.reveal:not(.visible) {
    opacity: 0;
}

.reveal.visible {
    animation: aparecer 0.6s ease-out backwards;
}



@media (hover: hover) and (pointer: fine) {
    header nav a:hover {
        box-shadow: var(--btn-shadow);
    }

    .btn:hover {
        color: var(--text);
        transform: translateX(4px);
        box-shadow: var(--btn-shadow);
    }

    .btn:hover::before {
        width: 100%;
    }

    .footer-sections ul li:hover,
    .footer-contact address ul li:hover {
        transform: translateX(4px);
        color: var(--text);
    }

    .gallery-btn:hover {
        transform: scale(1.1);
    }
}



@media (prefers-reduced-motion: reduce) {
    .reveal:not(.visible) { opacity: 1; }
    .reveal.visible { animation: none; }

    .gallery-track .project-card { transition: none; }
}

@media (max-width: 980px) {
    :root {
        --header-h: 60px;
    }

    header {
        padding: 8px 16px;
        grid-template-columns: minmax(0, 1fr) auto minmax(0, 1fr);
    }

    header .logo {
        height: clamp(26px, 8vw, 36px);
    }

    header > .btn {
        justify-content: center;
        box-sizing: border-box;
        width: 40px;
        height: 40px;
        padding: 10px;
        gap: 0;
    }

    header > .btn p {
        display: none;
    }

    header > .btn i {
        font-size: 1.4rem;
    }

    .menu-toggle {
        margin-left: -8px;
    }

    header nav {
        display: inline-block;
        gap: 14px;
        font-size: 0.9rem;
    }

    .hero {
        display: flex;
        align-items: center;
        justify-content: start;
    }

    .hero-img {
        display: none;
    }

    .menu-toggle {
        display: block;
    }

    header nav .nav-links {
        position: fixed;
        top: var(--header-h);
        left: 0;
        width: min(80vw, 140px);
        flex-direction: column;
        gap: 0;
        padding: 8px 24px 16px;
        border-radius: 0 0 20px 20px;
        background: var(--bg);
        box-shadow: 0 18px 30px -4px rgba(0, 0, 0, 0.22);
        border: 1px solid rgba(0, 0, 0, 0.06);
        border-top: 0;
        visibility: hidden;
        clip-path: inset(0 -40px 100% -40px);
        transition: clip-path .3s ease, visibility .3s;
    }

    header nav .nav-links.open {
        visibility: visible;
        clip-path: inset(0 -40px -60px -40px);
    }

    header nav .nav-links a {
        padding: 14px 0;
        display: flex;
        align-items: center;
        justify-content: center;
    }

    .menu-toggle[aria-expanded="true"] span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
    .menu-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
    .menu-toggle[aria-expanded="true"] span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

    footer {
        grid-template-columns: 1fr;
    }

    .footer-sections,
    .footer-contact {
        justify-self: start;
    }

    .gallery {
        --card-w: min(78vw, 300px);
        --off: 70%;
        grid-template-columns: 1fr 1fr;
    }
    .gallery-track { grid-column: 1 / -1; grid-row: 1; }
    .gallery-prev  { grid-row: 2; justify-self: end; }
    .gallery-next  { grid-row: 2; justify-self: start; }
}