/* ============================================================
   AI STUDIO PRO — Landing Page
   Premium dark theme. Conversion-focused. Mobile-first.
   ============================================================ */

*,*::before,*::after{margin:0;padding:0;box-sizing:border-box}
html{scroll-behavior:smooth}
body{
    font-family:-apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
    background:#050508;
    color:#b0b0c0;
    line-height:1.65;
    overflow-x:hidden;
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
}
img{max-width:100%;height:auto;display:block}
a{color:inherit;text-decoration:none}
.container{max-width:1100px;margin:0 auto;padding:0 24px}

/* ============================================================
   NAV
   ============================================================ */
.nav{
    position:fixed;top:0;left:0;right:0;z-index:9999;
    padding:20px 0;
    transition:all .35s cubic-bezier(.4,0,.2,1);
}
.nav--scrolled{
    padding:12px 0;
    background:rgba(5,5,8,.92);
    backdrop-filter:blur(24px) saturate(1.2);
    border-bottom:1px solid rgba(255,255,255,.04);
}
.nav__container{
    max-width:1100px;margin:0 auto;padding:0 24px;
    display:flex;align-items:center;justify-content:space-between;
}
.nav__logo img{height:30px}
.nav__logo span{font-size:1.2rem;font-weight:800;color:#fff;letter-spacing:-.02em}
.nav__links{display:flex;gap:32px}
.nav__links a{color:#8080a0;font-size:.88rem;font-weight:500;transition:color .2s}
.nav__links a:hover{color:#fff}
.nav__cta{
    padding:10px 24px;
    background:var(--primary);
    color:#fff;
    border-radius:8px;
    font-size:.85rem;
    font-weight:600;
    transition:all .2s;
    box-shadow:0 4px 16px var(--glow);
}
.nav__cta:hover{transform:translateY(-1px);box-shadow:0 6px 24px var(--glow)}
.nav__right{display:flex;align-items:center;gap:14px}
.nav__lang{
    padding:6px 12px;
    border:1px solid rgba(255,255,255,.12);
    border-radius:6px;
    font-size:.75rem;
    font-weight:700;
    color:#8080a0;
    letter-spacing:.05em;
    transition:all .2s;
}
.nav__lang:hover{border-color:var(--primary);color:#fff}
.nav__mobile{display:none;flex-direction:column;gap:5px;background:none;border:none;cursor:pointer;padding:4px}
.nav__mobile span{display:block;width:22px;height:2px;background:#fff;border-radius:2px;transition:all .3s}
.nav__mobile.active span:nth-child(1){transform:rotate(45deg) translate(5px,5px)}
.nav__mobile.active span:nth-child(2){opacity:0}
.nav__mobile.active span:nth-child(3){transform:rotate(-45deg) translate(5px,-5px)}

/* ============================================================
   HERO — Full-impact visual
   ============================================================ */
.hero{
    position:relative;
    min-height:100vh;
    display:flex;
    align-items:center;
    justify-content:center;
    overflow:hidden;
}
.hero__bg{
    position:absolute;inset:0;z-index:0;
}
.hero__bg-img{
    width:100%;height:100%;
    object-fit:cover;
    object-position:center top;
    opacity:.45;
    filter:saturate(.8);
}
/* Hero video background */
.hero__video-wrap{
    position:absolute;inset:0;
    overflow:hidden;
}
.hero__video{
    position:absolute;
    top:50%;left:50%;
    min-width:100%;min-height:100%;
    width:auto;height:auto;
    transform:translate(-50%,-50%);
    object-fit:cover;
    opacity:0;
    transition:opacity 1.2s ease-in-out;
    filter:saturate(.8) brightness(.9);
}
.hero__video--active{
    opacity:.5;
}
.hero__overlay{
    position:absolute;inset:0;
    background:
        linear-gradient(180deg, rgba(5,5,8,.3) 0%, rgba(5,5,8,.6) 40%, rgba(5,5,8,.95) 85%, #050508 100%),
        radial-gradient(ellipse at 50% 30%, var(--glow) 0%, transparent 60%);
}
.hero__content{
    position:relative;z-index:2;
    text-align:center;
    padding:160px 24px 100px;
    max-width:760px;
}
.hero__badge{
    display:inline-block;
    padding:8px 18px;
    background:rgba(108,99,255,.1);
    border:1px solid rgba(108,99,255,.25);
    border-radius:100px;
    font-size:.78rem;
    font-weight:600;
    color:var(--primary);
    margin-bottom:28px;
    letter-spacing:.02em;
}
.hero__title{
    font-size:clamp(2.2rem, 5vw, 3.8rem);
    font-weight:800;
    color:#fff;
    line-height:1.12;
    letter-spacing:-.03em;
    margin-bottom:22px;
}
.hero__subtitle{
    font-size:1.12rem;
    color:#9090b0;
    max-width:580px;
    margin:0 auto 40px;
    line-height:1.7;
}
.hero__actions{display:flex;gap:14px;justify-content:center;margin-bottom:52px;flex-wrap:wrap}
.hero__proof{
    display:flex;align-items:center;gap:14px;justify-content:center;
    padding-top:32px;
    border-top:1px solid rgba(255,255,255,.06);
}
.hero__proof p{font-size:.85rem;color:#7070a0}
.hero__proof strong{color:#fff}
.hero__avatars{display:flex}
.avatar{
    width:32px;height:32px;
    border-radius:50%;
    background:linear-gradient(135deg,var(--primary),#a855f7);
    display:flex;align-items:center;justify-content:center;
    font-size:.7rem;font-weight:700;color:#fff;
    border:2px solid #050508;
    margin-right:-8px;
}
.avatar:last-child{margin-right:0;background:#1a1a2e;font-size:.6rem}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn{
    display:inline-flex;align-items:center;justify-content:center;
    font-weight:600;border-radius:10px;
    transition:all .25s cubic-bezier(.4,0,.2,1);
    cursor:pointer;border:none;
}
.btn--primary{
    background:var(--primary);color:#fff;
    box-shadow:0 4px 20px var(--glow);
    padding:15px 32px;font-size:.95rem;
}
.btn--primary:hover{transform:translateY(-2px);box-shadow:0 8px 32px var(--glow)}
.btn--ghost{
    padding:15px 32px;font-size:.95rem;
    border:1px solid rgba(255,255,255,.12);color:#ccc;
}
.btn--ghost:hover{border-color:var(--primary);color:#fff}
.btn--lg{padding:18px 40px;font-size:1rem}

/* ============================================================
   SECTIONS — General
   ============================================================ */
.section{padding:110px 0;position:relative}
.section--dark{background:#08080f}
.section__bg-overlay{
    position:absolute;inset:0;
    background:rgba(5,5,8,.82);
    z-index:1;
}
.section__title{
    font-size:clamp(1.8rem,3.5vw,2.6rem);
    font-weight:700;color:#fff;
    text-align:center;margin-bottom:14px;
    letter-spacing:-.02em;
}
.section__sub{
    font-size:1.02rem;color:#7070a0;
    text-align:center;max-width:540px;
    margin:0 auto 56px;
}
.section__body{margin-top:8px}

/* ============================================================
   FEATURES
   ============================================================ */
.features-grid{display:grid;grid-template-columns:repeat(2,1fr);gap:18px}
.feature-card{
    background:rgba(12,12,24,.7);
    border:1px solid rgba(255,255,255,.04);
    border-radius:16px;padding:32px;
    transition:all .3s;
    position:relative;overflow:hidden;
}
.feature-card::before{
    content:'';position:absolute;top:0;left:0;right:0;height:1px;
    background:linear-gradient(90deg,transparent,var(--primary),transparent);
    opacity:0;transition:opacity .3s;
}
.feature-card:hover{border-color:rgba(108,99,255,.2);transform:translateY(-3px)}
.feature-card:hover::before{opacity:.6}
.feature-icon{
    width:48px;height:48px;
    display:flex;align-items:center;justify-content:center;
    background:linear-gradient(135deg,rgba(108,99,255,.12),rgba(168,85,247,.08));
    border-radius:12px;margin-bottom:18px;color:var(--primary);
}
.feature-card h3{color:#fff;font-size:1.02rem;margin-bottom:10px;font-weight:600}
.feature-card p{color:#7777a0;font-size:.87rem;line-height:1.65}

/* Feature images */
.features-images{
    display:grid;
    grid-template-columns:repeat(auto-fill, minmax(200px, 1fr));
    gap:12px;
    margin-top:32px;
}
.feature-img{
    width:100%;
    height:180px;
    object-fit:cover;
    border-radius:12px;
    border:1px solid rgba(255,255,255,.06);
    transition:transform .3s;
}
.feature-img:hover{transform:scale(1.03)}

/* ============================================================
   STEPS
   ============================================================ */
.steps{display:grid;grid-template-columns:repeat(3,1fr);gap:24px;counter-reset:step}
.step{
    text-align:center;padding:36px 24px;
    background:rgba(12,12,24,.5);border-radius:16px;
    border:1px solid rgba(255,255,255,.04);
    position:relative;
}
.step-number{
    display:inline-flex;width:52px;height:52px;
    align-items:center;justify-content:center;
    background:linear-gradient(135deg,var(--primary),#a855f7);
    color:#fff;border-radius:14px;
    font-size:1.2rem;font-weight:800;margin-bottom:20px;
    box-shadow:0 4px 20px var(--glow);
}
.step h3{color:#fff;font-size:1rem;margin-bottom:10px;font-weight:600}
.step p{color:#7070a0;font-size:.85rem}

/* ============================================================
   GALLERY — Masonry-style grid
   ============================================================ */
.gallery{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    grid-auto-rows:280px;
    gap:12px;
}
.gallery__item{
    position:relative;overflow:hidden;
    border-radius:14px;
    cursor:pointer;
}
.gallery__item--large{
    grid-row:span 2;
}
.gallery__item img{
    width:100%;height:100%;
    object-fit:cover;
    transition:transform .5s cubic-bezier(.4,0,.2,1), filter .3s;
}
.gallery__item:hover img{transform:scale(1.05);filter:brightness(1.1)}
.gallery__overlay{
    position:absolute;inset:0;
    background:linear-gradient(180deg,transparent 50%,rgba(0,0,0,.7) 100%);
    display:flex;align-items:flex-end;padding:16px;
    opacity:0;transition:opacity .3s;
}
.gallery__item:hover .gallery__overlay{opacity:1}
.gallery__tag{
    padding:5px 12px;
    background:rgba(108,99,255,.8);
    border-radius:6px;
    font-size:.7rem;font-weight:600;color:#fff;
    letter-spacing:.03em;
}

/* ============================================================
   PRICING
   ============================================================ */
.pricing-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:20px;max-width:940px;margin:0 auto}
.pricing-card{
    background:rgba(12,12,24,.8);
    border:1px solid rgba(255,255,255,.05);
    border-radius:20px;padding:36px 28px;
    text-align:center;transition:all .3s;
}
.pricing-card:hover{transform:translateY(-4px)}
.pricing-featured{
    border-color:var(--primary);
    box-shadow:0 0 60px var(--glow);
    position:relative;
}
.pricing-featured::before{
    content:'Recomendado';
    position:absolute;top:-12px;left:50%;transform:translateX(-50%);
    padding:5px 16px;background:var(--primary);color:#fff;
    border-radius:100px;font-size:.7rem;font-weight:700;letter-spacing:.03em;
}
.pricing-badge{font-size:.72rem;font-weight:700;text-transform:uppercase;letter-spacing:.1em;color:#6060a0;margin-bottom:12px}
.pricing-featured .pricing-badge{color:var(--primary)}
.price-amount{font-size:2.8rem;font-weight:800;color:#fff;letter-spacing:-.03em}
.price-period{font-size:.85rem;color:#555}
.pricing-price{margin-bottom:24px}
.pricing-features{list-style:none;margin-bottom:28px;text-align:left}
.pricing-features li{
    padding:11px 0;border-bottom:1px solid rgba(255,255,255,.04);
    font-size:.86rem;color:#9090b0;padding-left:26px;position:relative;
}
.pricing-features li::before{content:'✓';position:absolute;left:0;color:var(--accent);font-weight:700}
.btn-pricing{
    display:block;padding:13px 24px;
    border:1px solid rgba(255,255,255,.1);color:#bbb;
    border-radius:10px;font-weight:600;font-size:.88rem;transition:all .2s;
}
.btn-pricing:hover{border-color:var(--primary);color:#fff}
.btn-pricing-featured{background:var(--primary);border-color:var(--primary);color:#fff;box-shadow:0 4px 16px var(--glow)}
.btn-pricing-featured:hover{transform:translateY(-1px);box-shadow:0 6px 24px var(--glow)}

/* ============================================================
   FAQ
   ============================================================ */
.faq-list{max-width:660px;margin:0 auto}
.faq-item{border-bottom:1px solid rgba(255,255,255,.06)}
.faq-item summary{
    padding:22px 0;color:#e0e0f0;font-size:.98rem;font-weight:500;
    cursor:pointer;list-style:none;
    display:flex;justify-content:space-between;align-items:center;
}
.faq-item summary::-webkit-details-marker{display:none}
.faq-item summary::after{
    content:'+';font-size:1.4rem;color:#555;
    transition:transform .25s,color .25s;flex-shrink:0;margin-left:16px;
}
.faq-item[open] summary::after{transform:rotate(45deg);color:var(--primary)}
.faq-item[open] summary{color:#fff}
.faq-item p{padding:0 0 22px;color:#7070a0;font-size:.9rem;line-height:1.75}

/* ============================================================
   CTA
   ============================================================ */
.cta{padding:120px 0;position:relative;overflow:hidden}
.cta::before{
    content:'';position:absolute;
    bottom:-200px;left:50%;transform:translateX(-50%);
    width:800px;height:600px;
    background:radial-gradient(circle,var(--glow) 0%,transparent 65%);
    pointer-events:none;
}
.cta__inner{position:relative;text-align:center;max-width:600px}
.cta__title{font-size:clamp(1.8rem,3vw,2.6rem);font-weight:700;color:#fff;margin-bottom:16px;letter-spacing:-.02em}
.cta__sub{font-size:1.02rem;color:#7070a0;margin-bottom:36px;line-height:1.7}

/* ============================================================
   FOOTER
   ============================================================ */
.footer{border-top:1px solid rgba(255,255,255,.04);padding:56px 0 0;background:#030306}
.footer__inner{display:grid;grid-template-columns:2fr 1fr 1fr;gap:40px}
.footer__logo-img{height:26px;margin-bottom:10px}
.footer__logo{font-size:1.05rem;font-weight:700;color:#fff;display:block;margin-bottom:6px}
.footer__tagline{color:#555;font-size:.83rem;max-width:260px;line-height:1.6}
.footer__col h4{color:#777;font-size:.72rem;text-transform:uppercase;letter-spacing:.1em;margin-bottom:14px}
.footer__col a,.footer__col span{display:block;color:#7070a0;font-size:.87rem;margin-bottom:8px;transition:color .2s}
.footer__col a:hover{color:#fff}
.footer__social{display:flex;flex-wrap:wrap;gap:8px}
.footer__social a{
    padding:7px 14px;border:1px solid rgba(255,255,255,.07);
    border-radius:8px;font-size:.78rem;color:#8080a0;transition:all .2s;
    display:inline-block;margin-bottom:0;
}
.footer__social a:hover{border-color:var(--primary);color:#fff}
.footer__bottom{margin-top:40px;padding:20px 0;border-top:1px solid rgba(255,255,255,.04)}
.footer__bottom p{color:#3a3a50;font-size:.78rem;text-align:center}

/* ============================================================
   VIDEO SECTION
   ============================================================ */
.section--video{padding:100px 0}
.video-wrapper{
    position:relative;
    max-width:800px;
    margin:0 auto;
    border-radius:16px;
    overflow:hidden;
    border:1px solid rgba(255,255,255,.06);
    box-shadow:0 20px 60px rgba(0,0,0,.4), 0 0 40px var(--glow);
    aspect-ratio:16/9;
}
.video-wrapper iframe{
    position:absolute;
    top:0;left:0;
    width:100%;height:100%;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media(max-width:900px){
    .features-grid{grid-template-columns:1fr}
    .pricing-grid{grid-template-columns:1fr;max-width:360px}
    .steps{grid-template-columns:1fr}
    .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:220px}
    .gallery__item--large{grid-row:span 1}
    .footer__inner{grid-template-columns:1fr;gap:28px}
}
@media(max-width:768px){
    .nav__links{
        position:fixed;top:0;right:-100%;width:280px;height:100vh;
        background:#0a0a14;flex-direction:column;padding:100px 32px;
        gap:24px;transition:right .35s;
        border-left:1px solid rgba(255,255,255,.04);
    }
    .nav__links.open{right:0}
    .nav__cta{display:none}
    .nav__right .nav__cta{display:none}
    .nav__lang{position:absolute;top:20px;right:70px}
    .nav__mobile{display:flex}
    .hero__title{font-size:2rem}
    .hero__content{padding:130px 20px 80px}
    .hero__proof{flex-direction:column;gap:12px}
    .section{padding:80px 0}
    .gallery{grid-template-columns:repeat(2,1fr);grid-auto-rows:200px}
}
@media(max-width:480px){
    .hero__actions{flex-direction:column;align-items:center}
    .hero__actions .btn{width:100%;justify-content:center}
    .gallery{grid-template-columns:1fr;grid-auto-rows:260px}
    .section__title{font-size:1.6rem}
}