/* ========================================
   Before/After — thebeforeafter.com
   Mobile-first, modern, clean design
   ======================================== */

/* --- Reset & Base --- */
*,*::before,*::after{box-sizing:border-box;margin:0;padding:0}
html{scroll-behavior:smooth;-webkit-text-size-adjust:100%}
body{font-family:'Inter',system-ui,-apple-system,BlinkMacSystemFont,'Segoe UI',Roboto,sans-serif;color:#1a1a2e;background:#fff;line-height:1.65;font-size:16px;overflow-x:hidden}
body.menu-open{overflow:hidden}
img,video{max-width:100%;height:auto;display:block}
a{color:#3478f6;text-decoration:none;transition:color .2s}
a:hover{color:#1a5cd6}
ul,ol{list-style:none}
button{cursor:pointer;border:none;background:none;font:inherit}

/* --- Typography --- */
h1,h2,h3,h4{font-weight:700;line-height:1.2;color:#0d0d1a}
h1{font-size:clamp(2rem,5vw,3.25rem);letter-spacing:-.02em}
h2{font-size:clamp(1.6rem,4vw,2.5rem);letter-spacing:-.015em}
h3{font-size:clamp(1.15rem,2.5vw,1.5rem)}
p{max-width:680px}

/* --- Layout --- */
.container{width:100%;max-width:1160px;margin:0 auto;padding:0 20px}
@media(min-width:768px){.container{padding:0 32px}}

.section{padding:64px 0}
@media(min-width:768px){.section{padding:96px 0}}

.section__header{text-align:center;margin-bottom:48px}
.section__header p{margin:12px auto 0;color:#555;font-size:1.1rem}

/* --- Utility --- */
.text-center{text-align:center}
.text-gradient{background:linear-gradient(135deg,#3478f6 0%,#8b5cf6 100%);-webkit-background-clip:text;-webkit-text-fill-color:transparent;background-clip:text}

/* --- Reveal animation --- */
.reveal{opacity:0;transform:translateY(28px);transition:opacity .7s ease,transform .7s ease}
.reveal.revealed{opacity:1;transform:translateY(0)}
.reveal-delay-1{transition-delay:.1s}
.reveal-delay-2{transition-delay:.2s}
.reveal-delay-3{transition-delay:.3s}
.reveal-delay-4{transition-delay:.4s}

/* ========================================
   Header / Navigation
   ======================================== */
.site-header{position:fixed;top:0;left:0;right:0;z-index:100;padding:14px 0;transition:background .3s,box-shadow .3s,padding .3s}
.site-header--scrolled{background:rgba(255,255,255,.92);backdrop-filter:blur(12px);-webkit-backdrop-filter:blur(12px);box-shadow:0 1px 8px rgba(0,0,0,.06);padding:10px 0}
.nav{display:flex;align-items:center;justify-content:space-between;flex-wrap:nowrap}
.nav__brand{font-weight:800;font-size:1.2rem;color:#0d0d1a;display:flex;align-items:center;gap:8px;white-space:nowrap}
.nav__brand span{opacity:.55;font-weight:400;font-size:.85rem}
.nav__icon{width:36px;height:36px;border-radius:8px;box-shadow:0 1px 4px rgba(0,0,0,.1);flex-shrink:0}
.nav__menu{display:none;gap:28px}
.nav__menu a{color:#444;font-weight:500;font-size:.95rem;transition:color .2s}
.nav__menu a:hover{color:#3478f6}
.nav__cta{display:none;align-items:center;gap:6px;background:#0d0d1a;color:#fff;padding:9px 20px;border-radius:10px;font-weight:600;font-size:.9rem;transition:background .2s,transform .15s;white-space:nowrap}
.nav__cta:hover{background:#1a1a2e;color:#fff;transform:translateY(-1px)}

.nav__toggle{display:flex;flex-direction:column;gap:5px;padding:4px;width:32px}
.nav__toggle span{display:block;height:2px;background:#0d0d1a;border-radius:2px;transition:transform .3s,opacity .2s}

/* Mobile menu: full-screen overlay (works at ANY width below desktop) */
.nav__menu--open{display:flex;flex-direction:column;position:fixed;top:0;left:0;right:0;bottom:0;background:#fff;z-index:99;padding:80px 24px 40px;gap:8px}
.nav__menu--open a{font-size:1.3rem;padding:12px 0;border-bottom:1px solid #eee}

/* Desktop: show nav inline, hide toggle */
@media(min-width:960px){
  .nav__menu{display:flex}
  .nav__menu a{font-size:.9rem}
  .nav__cta{display:inline-flex}
  .nav__toggle{display:none}
  /* If open class persists after resize, neutralize it */
  .nav__menu--open{position:static;background:none;padding:0;gap:28px;flex-direction:row}
  .nav__menu--open a{font-size:.9rem;padding:0;border-bottom:none}
}

/* ========================================
   Hero
   ======================================== */
.hero{padding:120px 0 72px;text-align:center;background:linear-gradient(180deg,#f4f7ff 0%,#fff 100%)}
@media(min-width:960px){.hero{padding:140px 0 96px}}
.hero h1{margin-bottom:20px}
.hero__sub{color:#555;font-size:clamp(1rem,2.5vw,1.25rem);max-width:600px;margin:0 auto 36px}
.hero__ctas{display:flex;flex-wrap:wrap;justify-content:center;gap:14px;margin-bottom:48px}
.btn-primary{display:inline-flex;align-items:center;gap:10px;background:#0d0d1a;color:#fff;padding:14px 28px;border-radius:14px;font-weight:600;font-size:1.05rem;transition:background .2s,transform .15s,box-shadow .2s;box-shadow:0 4px 16px rgba(0,0,0,.12)}
.btn-primary:hover{background:#1a1a2e;color:#fff;transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,0,0,.18)}
.btn-primary svg{width:24px;height:24px;flex-shrink:0}
.btn-secondary{display:inline-flex;align-items:center;gap:8px;border:2px solid #ddd;color:#333;padding:12px 24px;border-radius:14px;font-weight:600;font-size:1.05rem;transition:border-color .2s,color .2s}
.btn-secondary:hover{border-color:#3478f6;color:#3478f6}

/* Hero app badge */
.hero__app-badge{display:inline-flex;align-items:center;gap:14px;background:#fff;border:1px solid #e8e8ee;border-radius:16px;padding:12px 20px 12px 12px;margin-bottom:36px;box-shadow:0 2px 12px rgba(0,0,0,.06);text-align:left}
.hero__app-icon{width:64px;height:64px;border-radius:14px;box-shadow:0 2px 8px rgba(0,0,0,.12);flex-shrink:0}
@media(min-width:480px){.hero__app-icon{width:80px;height:80px;border-radius:18px}}
.hero__app-info{display:flex;flex-direction:column;gap:2px}
.hero__app-name{font-weight:700;font-size:1rem;color:#0d0d1a}
.hero__app-rating{font-size:.85rem;color:#888}
.hero__app-rating{color:#f5a623}

/* Hero slider preview */
.hero__demo{max-width:380px;margin:0 auto;border-radius:16px;overflow:hidden;box-shadow:0 12px 48px rgba(0,0,0,.12)}

/* ========================================
   Before/After Slider
   ======================================== */
.ba-slider{position:relative;overflow:hidden;cursor:col-resize;touch-action:none;-webkit-user-select:none;user-select:none;aspect-ratio:4/5;background:#f0f0f0}
.ba-slider--autoplay{cursor:default;touch-action:auto}
.ba-slider img{position:absolute;top:0;left:0;width:100%;height:100%;object-fit:cover;pointer-events:none}
.ba-slider__before{clip-path:inset(0 50% 0 0);z-index:2}
.ba-slider__after{z-index:1}
.ba-slider__handle{position:absolute;top:0;bottom:0;left:50%;z-index:3;width:3px;background:#fff;transform:translateX(-50%);box-shadow:0 0 8px rgba(0,0,0,.25);transition:box-shadow .2s}
.ba-slider__handle::after{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:40px;height:40px;border-radius:50%;background:rgba(255,255,255,.95);box-shadow:0 2px 12px rgba(0,0,0,.2);display:flex;align-items:center;justify-content:center}
.ba-slider__handle::before{content:'';position:absolute;top:50%;left:50%;transform:translate(-50%,-50%);width:16px;height:16px;z-index:4;border-left:2px solid #666;border-right:2px solid #666;border-top:none;border-bottom:none;padding:0 3px}
.ba-slider--active .ba-slider__handle{box-shadow:0 0 16px rgba(0,0,0,.35)}

/* Autoplay slider: thin white line divider, no drag handle */
.ba-slider--autoplay .ba-slider__divider{position:absolute;top:0;bottom:0;left:50%;z-index:3;width:2px;background:#fff;transform:translateX(-50%);box-shadow:0 0 6px rgba(0,0,0,.2);pointer-events:none}

.ba-slider__label{position:absolute;top:16px;z-index:5;padding:6px 14px;border-radius:8px;font-size:.8rem;font-weight:600;text-transform:uppercase;letter-spacing:.04em;pointer-events:none}
.ba-slider__label--before{left:16px;background:rgba(0,0,0,.55);color:#fff}
.ba-slider__label--after{right:16px;background:rgba(255,255,255,.85);color:#1a1a2e}

/* ========================================
   How It Works
   ======================================== */
.steps{display:grid;gap:40px}
@media(min-width:768px){.steps{grid-template-columns:repeat(3,1fr);gap:32px}}
.step{text-align:center;padding:0 12px}
.step__num{display:inline-flex;align-items:center;justify-content:center;width:48px;height:48px;border-radius:14px;background:linear-gradient(135deg,#3478f6,#8b5cf6);color:#fff;font-weight:800;font-size:1.15rem;margin-bottom:20px}
.step__img{width:200px;margin:0 auto 20px;border-radius:12px;box-shadow:0 4px 24px rgba(0,0,0,.08)}
@media(min-width:768px){.step__img{width:220px}}
.step h3{margin-bottom:8px}
.step p{color:#666;font-size:.95rem;margin:0 auto;max-width:320px}

/* ========================================
   Interactive Demo Section
   ======================================== */
.demo-section{background:#f8f9fb}
.demo-section__hint{text-align:center;margin-top:16px;font-size:.9rem;color:#888}

/* Format toggle bar */
.demo-format-bar{display:flex;justify-content:center;gap:8px;margin-bottom:28px}
.demo-format-btn{display:flex;flex-direction:column;align-items:center;gap:2px;padding:10px 18px;border-radius:12px;background:#e8e8ee;color:#555;font-weight:600;transition:background .25s,color .25s,transform .15s}
.demo-format-btn:hover{background:#ddd}
.demo-format-btn.active{background:#0d0d1a;color:#fff}
.demo-format-btn__ratio{font-size:1rem;font-weight:700;line-height:1.2}
.demo-format-btn__label{font-size:.7rem;font-weight:500;opacity:.7;white-space:nowrap}
@media(min-width:480px){.demo-format-btn{padding:10px 24px}.demo-format-btn__ratio{font-size:1.1rem}}

/* Demo viewport — constrains the slider within a centered container */
.demo-viewport{display:flex;justify-content:center;align-items:center}
.demo-viewport .ba-slider{width:100%;max-width:480px;border-radius:16px;box-shadow:0 8px 40px rgba(0,0,0,.1);transition:aspect-ratio .4s ease,max-width .4s ease}
.demo-viewport .ba-slider[style*="1/1"]{max-width:480px}
.demo-viewport .ba-slider[style*="4/5"]{max-width:420px}
.demo-viewport .ba-slider[style*="9/16"]{max-width:320px}
@media(min-width:768px){
  .demo-viewport .ba-slider[style*="1/1"]{max-width:520px}
  .demo-viewport .ba-slider[style*="4/5"]{max-width:440px}
  .demo-viewport .ba-slider[style*="9/16"]{max-width:340px}
}

/* ========================================
   Use Cases / Industries
   ======================================== */
.use-cases__tabs{display:flex;flex-wrap:wrap;justify-content:center;gap:8px;margin-bottom:40px}
.use-cases__tabs button{padding:10px 20px;border-radius:100px;font-weight:600;font-size:.9rem;color:#555;background:#f0f0f5;transition:background .2s,color .2s}
.use-cases__tabs button:hover{background:#e4e4ee}
.use-cases__tabs button.active{background:#0d0d1a;color:#fff}

.use-cases__panel{display:none;text-align:center;max-width:700px;margin:0 auto}
.use-cases__panel.active{display:block}
.use-cases__panel h3{margin-bottom:12px;font-size:1.3rem}
.use-cases__panel p{color:#555;font-size:1.05rem;margin:0 auto 24px;line-height:1.7}
.use-cases__panel .btn-primary{font-size:.95rem;padding:12px 24px}

.use-cases__icon{font-size:2.5rem;margin-bottom:12px;display:block}

/* ========================================
   Features Grid
   ======================================== */
.features-grid{display:grid;gap:24px;grid-template-columns:1fr}
@media(min-width:480px){.features-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.features-grid{grid-template-columns:repeat(3,1fr)}}

.feature-card{background:#f8f9fb;border-radius:16px;padding:28px 24px;transition:transform .2s,box-shadow .2s}
.feature-card:hover{transform:translateY(-3px);box-shadow:0 8px 32px rgba(0,0,0,.06)}
.feature-card__icon{font-size:2rem;margin-bottom:14px;display:block}
.feature-card h3{margin-bottom:8px;font-size:1.1rem}
.feature-card p{color:#666;font-size:.92rem;line-height:1.6}

/* ========================================
   Social Proof / Stats
   ======================================== */
.stats{background:linear-gradient(135deg,#0d0d1a 0%,#1a1a3e 100%);color:#fff;border-radius:24px;padding:48px 32px;margin:0 auto;max-width:960px}
.stats__grid{display:grid;gap:32px;text-align:center}
@media(min-width:600px){.stats__grid{grid-template-columns:repeat(3,1fr);gap:16px}}
.stats__item h3{font-size:clamp(2rem,5vw,2.8rem);color:#fff;margin-bottom:4px}
.stats__item p{color:rgba(255,255,255,.65);font-size:.95rem}

/* ========================================
   Why It Works (Educational)
   ======================================== */
.why-section{background:#f8f9fb}
.why-grid{display:grid;gap:32px}
@media(min-width:768px){.why-grid{grid-template-columns:repeat(2,1fr);gap:40px}}
.why-card{background:#fff;border-radius:16px;padding:32px 28px;box-shadow:0 2px 12px rgba(0,0,0,.04)}
.why-card__icon{font-size:2rem;margin-bottom:14px;display:block}
.why-card h3{margin-bottom:10px}
.why-card p{color:#555;font-size:.95rem;line-height:1.7}

/* ========================================
   FAQ
   ======================================== */
.faq{max-width:760px;margin:0 auto}
.faq__item{border-bottom:1px solid #eee}
.faq__question{display:flex;align-items:center;justify-content:space-between;width:100%;padding:20px 0;font-size:1.05rem;font-weight:600;color:#1a1a2e;text-align:left;cursor:pointer;gap:16px}
.faq__question::after{content:'+';font-size:1.4rem;font-weight:300;color:#999;transition:transform .3s;flex-shrink:0}
.faq__item--open .faq__question::after{transform:rotate(45deg)}
.faq__answer{max-height:0;overflow:hidden;transition:max-height .35s ease,padding .35s ease}
.faq__item--open .faq__answer{max-height:400px;padding-bottom:20px}
.faq__answer p{color:#555;font-size:.95rem;line-height:1.7}

/* ========================================
   Blog Preview
   ======================================== */
.blog-grid{display:grid;gap:24px}
@media(min-width:600px){.blog-grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.blog-grid{grid-template-columns:repeat(3,1fr)}}
.blog-card{background:#f8f9fb;border-radius:16px;padding:28px 24px;transition:transform .2s,box-shadow .2s}
.blog-card:hover{transform:translateY(-3px);box-shadow:0 8px 32px rgba(0,0,0,.06)}
.blog-card__tag{display:inline-block;font-size:.75rem;font-weight:700;text-transform:uppercase;letter-spacing:.06em;color:#3478f6;margin-bottom:10px}
.blog-card h3{font-size:1.05rem;margin-bottom:8px;line-height:1.4}
.blog-card p{color:#666;font-size:.88rem;line-height:1.6}

/* ========================================
   Footer
   ======================================== */
.site-footer{background:#0d0d1a;color:rgba(255,255,255,.7);padding:56px 0 32px}
.footer__grid{display:grid;gap:32px;margin-bottom:40px}
@media(min-width:600px){.footer__grid{grid-template-columns:repeat(2,1fr)}}
@media(min-width:900px){.footer__grid{grid-template-columns:2fr 1fr 1fr}}
.footer__brand{font-weight:800;font-size:1.3rem;color:#fff;margin-bottom:12px}
.footer__brand span{font-weight:400;opacity:.5;font-size:.85rem;margin-left:6px}
.footer__desc{font-size:.92rem;line-height:1.6;max-width:320px}
.footer__col h4{color:#fff;font-weight:700;font-size:.9rem;text-transform:uppercase;letter-spacing:.06em;margin-bottom:14px}
.footer__col a{display:block;color:rgba(255,255,255,.6);padding:4px 0;font-size:.92rem;transition:color .2s}
.footer__col a:hover{color:#fff}
.footer__bottom{border-top:1px solid rgba(255,255,255,.08);padding-top:24px;display:flex;flex-wrap:wrap;justify-content:space-between;gap:12px;font-size:.82rem;color:rgba(255,255,255,.4)}
.footer__bottom a{color:rgba(255,255,255,.4)}
.footer__bottom a:hover{color:rgba(255,255,255,.7)}

/* ========================================
   CTA Banner (above footer)
   ======================================== */
.cta-banner{text-align:center;padding:64px 0;background:linear-gradient(135deg,#3478f6 0%,#8b5cf6 100%);color:#fff}
.cta-banner h2{color:#fff;margin-bottom:16px}
.cta-banner p{color:rgba(255,255,255,.85);font-size:1.1rem;max-width:520px;margin:0 auto 32px}
.cta-banner .btn-primary{background:#fff;color:#0d0d1a;box-shadow:0 4px 16px rgba(0,0,0,.15)}
.cta-banner .btn-primary:hover{background:#f8f8f8;color:#0d0d1a;transform:translateY(-2px);box-shadow:0 6px 24px rgba(0,0,0,.2)}

/* ========================================
   Video Demo
   ======================================== */
.video-demo{max-width:360px;margin:0 auto;border-radius:16px;overflow:hidden;box-shadow:0 8px 40px rgba(0,0,0,.1)}
.video-demo video{width:100%;display:block}

/* ========================================
   App Screenshots Showcase
   ======================================== */
.screenshots{display:flex;justify-content:center;gap:16px;overflow-x:auto;padding:8px 0;-webkit-overflow-scrolling:touch}
.screenshots img{width:180px;border-radius:12px;box-shadow:0 4px 20px rgba(0,0,0,.08);flex-shrink:0}
@media(min-width:768px){.screenshots img{width:220px}}