:root {
    --bg: #0f1724;
    --card: #0b1220;
    --accent1: #6ee7b7;
    --accent2: #6c8cff;
    --muted: #9aa4b2;
    --glass: rgba(255, 255, 255, 0.04);
    --radius: 14px;
    color-scheme: dark;

    /* Cambia esta ruta si subes tu propia imagen */
    --recursos-bg: url("IMG/recursos-bg.jpg");
}

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

body {
    font-family: 'Montserrat', system-ui, Arial;
    height: 100%;
    margin: 0;
    background: linear-gradient(180deg, #071026 0%, #07162b 60%);
    color: #e6eef8;
    line-height: 1.5;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 28px;
}

/* =========================
   HEADER premium (HOME)
   ========================= */

.site-header {
    position: sticky;
    top: 0;
    z-index: 1200;

    background: rgba(7, 16, 38, 0.62);
    -webkit-backdrop-filter: blur(14px) saturate(140%);
    backdrop-filter: blur(14px) saturate(140%);

    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.25);
    isolation: isolate;

    /* para que los overlays queden prolijos */
    overflow: hidden;
}

/* Opción C: drift ultra sutil (más “caro”) */
.site-header::before {
    content: "";
    position: absolute;
    inset: 0;
    background:
        radial-gradient(900px 220px at 10% 0%,
            rgba(110, 231, 183, 0.14), transparent 60%),
        radial-gradient(900px 220px at 90% 20%,
            rgba(108, 140, 255, 0.14), transparent 60%),
        linear-gradient(90deg,
            rgba(110, 231, 183, 0.06),
            rgba(108, 140, 255, 0.06),
            rgba(110, 231, 183, 0.06));
    background-size: 160% 160%;
    animation: headerDrift 240s linear infinite;
    opacity: 0.55;
    z-index: 0;
    pointer-events: none;
}

/* Scroll: más separación + un toque más compacto */
.site-header.is-scrolled {
    background: rgba(7, 16, 38, 0.88);
    border-bottom-color: rgba(255, 255, 255, 0.14);
    box-shadow: 0 18px 55px rgba(0, 0, 0, 0.48);
}

.header-inner {
    max-width: 1100px;
    margin: 0 auto;

    /* punto 1: header más compacto */
    padding: 10px 28px;

    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 14px;

    position: relative;
    z-index: 2;

    transition: padding 180ms ease;
}

/* compresión suave al scrollear (pro) */
.site-header.is-scrolled .header-inner {
    padding: 8px 28px;
}

.brand {
    display: flex;
    align-items: center;
    gap: 12px;
    min-width: 220px;
}

.brand:focus-visible {
    outline: 2px solid rgba(108, 140, 255, 0.35);
    outline-offset: 4px;
    border-radius: 14px;
}

.logo img {
    /* punto 1: logo apenas más chico */
    height: 48px;
    width: 48px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.10);
    box-shadow: 0 12px 28px rgba(0, 0, 0, 0.35);
}

.brand-text {
    display: flex;
    flex-direction: column;
    line-height: 1.15;
}

.brand-title {
    font-weight: 700;
    letter-spacing: 0.2px;
}

.brand-tagline {
    font-size: 12px;
    color: var(--muted);
    margin-top: 2px;
}

.site-nav {
    display: flex;
    gap: 8px;
    align-items: center;
}

.nav-link {
    position: relative;
    padding: 10px 10px;
    border-radius: 12px;
    font-weight: 600;
    letter-spacing: 0.2px;
    color: rgba(230, 238, 248, 0.86);
    transition: color 160ms ease, background 160ms ease, transform 160ms ease;
}

.nav-link:hover {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.04);
    transform: translateY(-1px);
}

.nav-link::after {
    content: "";
    position: absolute;
    left: 10px;
    right: 10px;
    bottom: 6px;
    height: 2px;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--accent1), var(--accent2));
    transform: scaleX(0);
    transform-origin: left;
    transition: transform 220ms ease;
    opacity: 0.9;
}

/* punto 3: estado activo */
.nav-link.is-active {
    color: #ffffff;
    background: rgba(255, 255, 255, 0.06);
}

.nav-link.is-active::after,
.nav-link:hover::after {
    transform: scaleX(1);
}

.nav-link:focus-visible,
.btn:focus-visible,
.menu-toggle:focus-visible {
    outline: 2px solid rgba(110, 231, 183, 0.35);
    outline-offset: 3px;
    border-radius: 14px;
}

.btn {
    background: linear-gradient(90deg, var(--accent1), var(--accent2));
    padding: 10px 16px;
    border-radius: 12px;
    font-weight: 700;
    color: #021322;
    box-shadow: 0 12px 26px rgba(0, 0, 0, 0.28);
    transition: transform 160ms ease, box-shadow 160ms ease, filter 160ms ease;
}

.btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.36);
    filter: saturate(1.05);
}

.btn:active {
    transform: translateY(0);
}

.btn.btn-nav {
    white-space: nowrap;
}

/* hamburguesa */
.menu-toggle {
    display: none;
    width: 44px;
    height: 44px;
    border-radius: 14px;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.12);
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: transform 160ms ease, background 160ms ease, border-color 160ms ease;
}

.menu-toggle:hover {
    transform: translateY(-1px);
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.18);
}

.menu-toggle:active {
    transform: translateY(0);
}

.menu-icon {
    width: 18px;
    height: 2px;
    background: #e6eef8;
    border-radius: 999px;
    position: relative;
    display: block;
}

.menu-icon::before,
.menu-icon::after {
    content: "";
    position: absolute;
    left: 0;
    width: 18px;
    height: 2px;
    background: #e6eef8;
    border-radius: 999px;
    transition: transform 180ms ease, top 180ms ease, opacity 180ms ease;
}

.menu-icon::before {
    top: -6px;
}

.menu-icon::after {
    top: 6px;
}

.menu-toggle[aria-expanded="true"] .menu-icon {
    background: transparent;
}

.menu-toggle[aria-expanded="true"] .menu-icon::before {
    top: 0;
    transform: rotate(45deg);
}

.menu-toggle[aria-expanded="true"] .menu-icon::after {
    top: 0;
    transform: rotate(-45deg);
}

/* punto 4: progreso siempre visible (track + bar) */
.header-progress {
    position: absolute;
    left: 0;
    top: 0;
    height: 2px;
    width: 100%;
    background: rgba(255, 255, 255, 0.08);
    /* track sutil */
    z-index: 3;
    pointer-events: none;
}

.header-progress__bar {
    position: absolute;
    left: 0;
    top: 0;
    height: 100%;
    width: 0%;
    background: linear-gradient(90deg, var(--accent1), var(--accent2));
    opacity: 0.95;
}

.header-glow {
    position: absolute;
    left: 0;
    right: 0;
    bottom: -1px;
    height: 2px;
    background: linear-gradient(90deg,
            transparent,
            rgba(110, 231, 183, 0.65),
            rgba(108, 140, 255, 0.65),
            transparent);
    opacity: 0.28;
    pointer-events: none;
    z-index: 2;
}

@keyframes headerDrift {
    0% {
        background-position: 0% 20%;
    }

    50% {
        background-position: 100% 60%;
    }

    100% {
        background-position: 0% 20%;
    }
}

@media (prefers-reduced-motion: reduce) {

    .nav-link,
    .btn,
    .menu-toggle,
    .menu-icon::before,
    .menu-icon::after,
    .header-inner {
        transition: none !important;
    }

    .site-header::before {
        animation: none !important;
    }
}

/* =========================
   RESTO DEL HOME
   ========================= */

.hero {
    display: grid;
    grid-template-columns: 1fr 420px;
    gap: 28px;
    align-items: center;
    padding: 36px 0;
}

.hero h1 {
    font-size: 36px;
    margin: 0 0 12px;
}

.hero p {
    color: var(--muted);
    margin: 0 0 18px;
}

.actions {
    display: flex;
    gap: 12px;
}

.mock-card {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.02));
    padding: 20px;
    border-radius: 14px;
    box-shadow: 0 6px 20px rgba(2, 6, 23, 0.6);
}

.mock-3d {
    background-image: url('../IMG/mock-3d.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    height: 260px;
    border-radius: 12px;
}

.why {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 12px;
    margin: 24px 0;
}

.why .item {
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.02), rgba(255, 255, 255, 0.01));
    padding: 12px;
    border-radius: 12px;
}

.blog {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    margin: 14px 0 34px;
}

.post {
    background: rgba(255, 255, 255, 0.03);
    padding: 16px;
    border-radius: 14px;
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.post h4 {
    margin: 0 0 8px;
}

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

.contact {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
    margin: 30px 0;
}

form {
    display: grid;
    gap: 10px;
}

input,
textarea {
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.08);
    padding: 12px 12px;
    border-radius: 12px;
    color: #e6eef8;
}

textarea {
    min-height: 120px;
}

footer {
    margin-top: 30px;
    color: var(--muted);
    font-size: 14px;
}

/* responsive */
@media (max-width:980px) {
    .hero {
        grid-template-columns: 1fr;
    }

    .why {
        grid-template-columns: repeat(2, 1fr);
    }

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

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

    .header-inner {
        padding: 10px 18px;
    }

    .site-header.is-scrolled .header-inner {
        padding: 8px 18px;
    }

    .menu-toggle {
        display: flex;
    }

    .site-nav {
        position: absolute;
        top: calc(100% - 6px);
        left: 16px;
        right: 16px;

        display: grid;
        gap: 10px;
        padding: 14px;

        background: rgba(2, 6, 23, 0.72);
        border: 1px solid rgba(255, 255, 255, 0.12);
        border-radius: 18px;

        box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
        -webkit-backdrop-filter: blur(14px);
        backdrop-filter: blur(14px);

        opacity: 0;
        transform: translateY(-6px);
        pointer-events: none;
        transition: opacity 160ms ease, transform 160ms ease;
        z-index: 10;
    }

    .site-nav.is-open {
        opacity: 1;
        transform: translateY(0);
        pointer-events: auto;
    }

    .site-nav .btn {
        width: 100%;
        text-align: center;
    }

    .site-nav .nav-link {
        text-align: center;
        justify-content: center;
    }
}

@media (max-width:520px) {
    .hero h1 {
        font-size: 26px;
    }
}

/* ====== RECURSOS (ampliación de estilos modernos) ====== */

@media (max-width: 960px) {
    #recursos .blog {
        grid-template-columns: repeat(6, 1fr) !important;
    }
}

@media (max-width: 640px) {
    #recursos .blog {
        grid-template-columns: repeat(1, 1fr) !important;
    }
}

#recursos .post {
    grid-column: span 3;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 14px;
    padding: 16px;
    transition: transform 280ms ease, box-shadow 280ms ease, background 280ms ease, border-color 280ms ease;
    backdrop-filter: blur(6px);
    position: relative;
    isolation: isolate;
    cursor: pointer;
    --mx: 50%;
    --my: 50%;
}

@media (max-width: 960px) {
    #recursos .post {
        grid-column: span 3;
    }
}

@media (max-width: 640px) {
    #recursos .post {
        grid-column: span 1;
    }
}

#recursos .post::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(260px 180px at var(--mx) var(--my),
            rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.06) 55%, transparent 75%);
    opacity: 0;
    transition: opacity 240ms ease;
    border-radius: inherit;
    z-index: -1;
}

#recursos .post::after {
    content: "";
    position: absolute;
    inset: 0;
    border-radius: inherit;
    padding: 1px;
    background: linear-gradient(135deg, rgba(110, 231, 183, 0.45), rgba(108, 140, 255, 0.45), rgba(255, 255, 255, 0.12));
    -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0.55;
    z-index: -2;
}

#recursos .post:hover {
    transform: translateY(-6px);
    box-shadow: 0 18px 40px rgba(0, 0, 0, 0.45);
    border-color: rgba(255, 255, 255, 0.35);
    background: rgba(255, 255, 255, 0.08);
}

#recursos .post:hover::before {
    opacity: 1;
}

.recursos-hero {
    position: relative;
    padding: 54px 0 40px;
    border-radius: 18px;
    overflow: hidden;
}

.recursos-hero::before {
    content: "";
    position: absolute;
    inset: 0;
    background-image: var(--recursos-bg);
    background-size: cover;
    background-position: center;
    opacity: 0.20;
    filter: blur(2px) saturate(1.1);
    transform: scale(1.06);
}

.recursos-hero::after {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(900px 420px at 20% 10%,
            rgba(110, 231, 183, 0.20),
            transparent 55%),
        radial-gradient(900px 420px at 80% 20%,
            rgba(108, 140, 255, 0.20),
            transparent 55%),
        linear-gradient(180deg, rgba(7, 16, 38, 0.60), rgba(7, 16, 38, 0.85));
}

.recursos-hero>* {
    position: relative;
    z-index: 1;
}

.recursos-title {
    font-size: 28px;
    margin-bottom: 18px;
    letter-spacing: 0.2px;
}

/* ====== CONTACTO (estilo moderno) ====== */

.contact-modern {
    position: relative;
    margin-top: 34px;
    padding: 42px 0;
    border-radius: 18px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1.3fr 0.7fr;
    gap: 18px;
}

.contact-modern::before {
    content: "";
    position: absolute;
    inset: 0;
    background: radial-gradient(700px 420px at 10% 20%,
            rgba(110, 231, 183, 0.18),
            transparent 60%),
        radial-gradient(700px 420px at 90% 30%,
            rgba(108, 140, 255, 0.18),
            transparent 60%),
        linear-gradient(180deg, rgba(255, 255, 255, 0.03), rgba(255, 255, 255, 0.01));
    z-index: 0;
}

.contact-card {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.18);
    border-radius: 18px;
    padding: 22px;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(8px);
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.35);
}

.contact-aside {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.12);
    border-radius: 18px;
    padding: 18px;
    position: relative;
    z-index: 1;
    backdrop-filter: blur(8px);
}

.contact-card h3 {
    margin: 0 0 8px;
    font-size: 20px;
}

.contact-aside h4 {
    margin: 0 0 10px;
    font-size: 16px;
    color: rgba(255, 255, 255, 0.92);
}

.topics {
    margin: 0;
    padding-left: 18px;
    color: rgba(255, 255, 255, 0.75);
    display: grid;
    gap: 8px;
}

.contact-form {
    margin-top: 14px;
    display: grid;
    gap: 12px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
}

.form-field {
    position: relative;
    display: grid;
}

.form-field input,
.form-field textarea {
    width: 100%;
    background: rgba(2, 6, 23, 0.35);
    border: 1px solid rgba(255, 255, 255, 0.16);
    border-radius: 14px;
    padding: 14px 14px 12px;
    color: #e6eef8;
    outline: none;
    transition: border-color 160ms ease, box-shadow 160ms ease, background 160ms ease;
}

.form-field input:focus,
.form-field textarea:focus {
    border-color: rgba(110, 231, 183, 0.45);
    box-shadow: 0 0 0 4px rgba(110, 231, 183, 0.12);
    background: rgba(2, 6, 23, 0.45);
}

.form-field span {
    position: absolute;
    left: 14px;
    top: 12px;
    font-size: 13px;
    color: rgba(255, 255, 255, 0.62);
    pointer-events: none;
    transition: transform 140ms ease, opacity 140ms ease, color 140ms ease;
    opacity: 0.95;
}

.form-field input:not(:placeholder-shown)+span,
.form-field textarea:not(:placeholder-shown)+span,
.form-field input:focus+span,
.form-field textarea:focus+span {
    transform: translateY(-10px) scale(0.92);
    opacity: 0.85;
    color: rgba(255, 255, 255, 0.78);
}

.form-field--textarea textarea {
    min-height: 120px;
    resize: vertical;
}

.btn.btn-send {
    display: inline-flex;
    gap: 10px;
    align-items: center;
    justify-content: center;
    border: 1px solid rgba(255, 255, 255, 0.25);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0.04));
    transition: transform 160ms ease, box-shadow 160ms ease, border-color 160ms ease, background 160ms ease;
}

.btn.btn-send svg path {
    fill: currentColor;
}

.btn.btn-send:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 24px rgba(0, 0, 0, 0.3);
    border-color: rgba(255, 255, 255, 0.45);
}

.btn.btn-send:active {
    transform: translateY(0);
}

.form-note {
    margin-top: 6px;
    font-size: 12px;
}