/* ============== Variables / base ============== */
:root {
    --bg: #0b0f19;
    --bg-soft: #0f1a33;
    --text: #f5f7fb;
    --muted: #b9c0cf;
    --brand: #43bdc7;
    --accent: #9b8cff;
    --title: #e9d09b;
    --ring: rgba(67, 189, 199, .45);
    --shadow: 0 10px 30px rgba(0, 0, 0, .25), 0 4px 10px rgba(0, 0, 0, .15);
    --gap: 1.2rem;
}

html,
body {
    height: 100%
}

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: 'Inter', system-ui, -apple-system, Segoe UI, Roboto, sans-serif;
    -webkit-font-smoothing: antialiased;
    line-height: 1.5;
}

* {
    box-sizing: border-box
}

a {
    color: inherit;
    text-decoration: none
}

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

.container {
    width: min(1100px, 92%);
    margin-inline: auto
}

/* ============== Header original ============== */
#header {
    position: relative;
    min-height: 100dvh;
    display: grid;
    place-items: center;
    text-align: center;
    overflow: hidden;
}

#header .intro {
    width: 100%;
    min-height: 100dvh;
    padding: 0;
    background: none
}

#bgf {
    position: absolute;
    inset: 0;
    background:
        radial-gradient(1200px 500px at 20% 10%, rgba(90, 226, 205, .08), transparent 60%),
        radial-gradient(900px 400px at 80% 0%, rgba(56, 157, 237, .10), transparent 60%),
        url('img/bg_big.jpg') center/cover no-repeat;
}

@media (max-width:749px) {
    #bgf {
        background:
            radial-gradient(1000px 400px at 20% 10%, rgba(90, 226, 205, .10), transparent 60%),
            radial-gradient(700px 320px at 80% 0%, rgba(56, 157, 237, .12), transparent 60%),
            url('img/bg_mov2.jpg') center/cover no-repeat;
    }
}

/* ============== Hero ============== */
.hero {
    position: relative;
    display: grid;
    place-items: center;
    min-height: 105dvh;
    overflow: hidden;
    background:
        radial-gradient(1200px 500px at 20% 10%, rgba(90, 226, 205, .09), transparent 60%),
        radial-gradient(900px 400px at 80% 0%, rgba(155, 140, 255, .1), transparent 60%),
        var(--bg);
}

.hero-inner {
    text-align: center;
    padding: 7rem 0 5rem
}

.eyebrow {
    display: inline-flex;
    align-items: center;
    gap: .5rem;
    padding: .35rem .6rem;
    border-radius: 999px;
    font-size: .85rem;
    color: #0b1221;
    background: linear-gradient(90deg, var(--brand), var(--accent));
    font-weight: 700;
}

h1 {
    font-family: 'Poppins', system-ui, sans-serif;
    font-weight: 700;
    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 1.05;
    margin: 1rem auto;
    max-width: 60vw;
}

.h1-accent {
    background: linear-gradient(90deg, var(--brand), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
}

.sub {
    color: var(--muted);
    font-size: clamp(1.05rem, 2.2vw, 1.25rem);
    margin-top: 6dvh;
}

.cta {
    display: flex;
    gap: .8rem;
    justify-content: center;
    margin-top: 1.6rem;
    flex-wrap: wrap
}

.cta.end {
    justify-content: flex-end;
    margin-top: .6rem
}

/* para tarjetas del carrusel */
.btn {
    padding: .9rem 1.2rem;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, .12);
    background: linear-gradient(180deg, rgba(255, 255, 255, .02), rgba(255, 255, 255, .01));
    color: var(--text);
    font-weight: 700;
    box-shadow: var(--shadow);
    transition: transform .12s ease, box-shadow .12s ease;
}

.btn:hover {
    transform: translateY(-2px)
}

.btn.primary {
    background: linear-gradient(90deg, var(--brand), var(--accent));
    color: #081017;
    border: none
}

/* ============== Secciones ============== */
section {
    padding: 1dvh 1dvh
}

.section-title {
    font-family: 'Poppins', sans-serif;
    font-weight: 700;
    font-size: clamp(3rem, 6vw, 5rem);
    line-height: 1.05;
    margin: 0.5rem auto;
    text-align: center;
    background: linear-gradient(90deg, var(--brand), var(--accent));
    -webkit-background-clip: text;
    background-clip: text;
    color: transparent;
    padding-top: 5vh;
}

.section-kicker {
    color: var(--muted);
    font-size: clamp(1.05rem, 2.2vw, 1.25rem);
    margin-top: 6dvh;
    margin-bottom: 2dvh;
    text-align: center;
    display: block;
}

/* Fondo alterno para #proyectos */
#proyectos {
    background:
        radial-gradient(600px 260px at 30% 40%, rgba(90, 226, 205, .12), transparent 60%),
        radial-gradient(600px 260px at 70% 40%, rgba(155, 140, 255, .12), transparent 60%),
        var(--bg-soft);
}

/* ============== Carrusel (desktop/tablet) ============== */
.carousel {
    position: relative;
    padding: 0 2.5rem;
    max-width: 80vw;
    margin-inline: auto;
    margin-bottom: 5dvh;
}

.carousel-viewport {
    overflow: hidden
}

.carousel-track {
    display: flex;
    gap: var(--gap);
    will-change: transform;
    transform: translate3d(0, 0, 0);
    align-items: stretch;
}

.carousel-slide {
    flex: 0 0 85%;
    display: flex
}

@media(min-width:640px) {
    .carousel-slide {
        flex: 0 0 50%
    }
}

@media(min-width:980px) {
    .carousel-slide {
        flex: 0 0 33.3333%
    }
}

.card {
    background: linear-gradient(180deg, rgba(255, 255, 255, .03), rgba(255, 255, 255, .02));
    border: 1px solid rgba(255, 255, 255, .08);
    border-radius: 20px;
    padding: 1.2rem;
    box-shadow: var(--shadow);
    height: 100%;
    display: flex;
    flex-direction: column;
}

.card img {
    width: 100%;
    height: 200px;
    object-fit: cover;
    border-radius: 14px
}

.card h3 {
    margin: .9rem 0 .4rem;
    font-size: 1.15rem
}

.card p {
    color: var(--muted);
    margin: 0 0 .8rem
}

.card a {
    margin-top: auto
}

/* ============== Carrusel (móvil) – scroll-snap “peek” ============== */
@media (max-width: 639px) {
    .carousel {
        max-width: 90vw;
        padding: 0;
    }

    .carousel-viewport {
        overflow-x: auto;
        scroll-snap-type: x mandatory;
        -webkit-overflow-scrolling: touch;
        scroll-padding: 0 10vw;
    }

    .carousel-track {
        gap: 1rem;
        padding: 0 10vw;
    }

    .carousel-slide {
        flex: 0 0 70vw;
        scroll-snap-align: center;
    }

    .carousel-viewport::before,
    .carousel-viewport::after {
        content: "";
        position: sticky;
        top: 0;
        width: 10vw;
        height: 100%;
        pointer-events: none;
    }

    .carousel-viewport::before {
        left: 0;
        background: linear-gradient(90deg, rgba(11, 15, 25, .6), transparent);
    }

    .carousel-viewport::after {
        right: 0;
        background: linear-gradient(270deg, rgba(11, 15, 25, .6), transparent);
    }

    .carousel-viewport.auto {
        scroll-snap-type: none;
    }

    .carousel-track.auto {
        padding: 0;
    }
}

/* ============== CTA ÚNETE / Footer ============== */
.cta-join {
    background:
        radial-gradient(600px 260px at 30% 40%, rgba(90, 226, 205, .12), transparent 60%),
        radial-gradient(600px 260px at 70% 40%, rgba(155, 140, 255, .12), transparent 60%),
        var(--bg-soft);
    border-block: 1px solid rgba(255, 255, 255, .08);
}

.cta-join .box {
    background: linear-gradient(180deg, rgba(255, 255, 255, .04), rgba(255, 255, 255, .02));
    border: 1px solid rgba(255, 255, 255, .1);
    border-radius: 22px;
    padding: 2rem;
    display: grid;
    gap: 1rem;
    justify-items: center;
    text-align: center;
    margin-top: 5dvh;
    margin-bottom: 5dvh;
}

.footer-bar {
    display: flex;
    justify-content: space-between;
    gap: 1rem;
    flex-wrap: wrap;
}

footer {
    border-top: 1px solid rgba(255, 255, 255, .08);
    padding: 2rem 0;
    color: var(--muted)
}

/* reduce-motion */
@media (prefers-reduced-motion: reduce) {
    .carousel-track {
        transition: none !important
    }
}