/* === SOURCE DETAIL — Premium Marketplace Dark UI === */

.sd-page{background:#070B14;color:#F5F7FA;font-family:'Inter',sans-serif;min-height:100vh}
.sd-container{max-width:1100px;margin:0 auto;padding:0 24px}
.sd-sec{padding:48px 0}
.sd-sec--alt{background:#0B1020}
.sd-sec__title{font-family:'Space Grotesk',sans-serif;font-size:1.3rem;font-weight:700;margin-bottom:24px}

/* HERO */
.sd-hero{position:relative;padding:80px 24px 48px;overflow:hidden}
.sd-hero__bg{position:absolute;inset:0;background:radial-gradient(ellipse at 30% 20%,rgba(124,92,255,.1) 0%,transparent 50%),radial-gradient(ellipse at 80% 80%,rgba(0,209,255,.05) 0%,transparent 40%)}
.sd-hero__inner{position:relative;z-index:1}
.sd-hero__grid{display:grid;grid-template-columns:1.2fr 1fr;gap:36px;align-items:start}

/* BREADCRUMB */
.sd-breadcrumb{margin-bottom:20px;font-size:.78rem;color:#7A8599}
.sd-breadcrumb a{color:#7A8599;text-decoration:none!important}
.sd-breadcrumb a:hover{color:#7C5CFF}
.sd-breadcrumb span{margin:0 6px}

/* GALLERY */
.sd-gallery__main{border-radius:14px;overflow:hidden;border:1px solid rgba(124,92,255,.1);background:#111827;margin-bottom:12px}
.sd-gallery__main img{width:100%;height:auto;max-height:400px;object-fit:contain;display:block}
.sd-gallery__thumbs{display:flex;gap:8px;overflow-x:auto}
.sd-thumb{width:72px;height:54px;border-radius:6px;overflow:hidden;border:2px solid transparent;cursor:pointer;flex-shrink:0;transition:border-color .2s}
.sd-thumb.active,.sd-thumb:hover{border-color:#7C5CFF}
.sd-thumb img{width:100%;height:100%;object-fit:cover}

/* INFO */
.sd-info__badges{display:flex;gap:6px;flex-wrap:wrap;margin-bottom:12px}
.sd-badge{display:inline-block;padding:4px 10px;border-radius:5px;font-size:.72rem;font-weight:600;background:rgba(124,92,255,.12);border:1px solid rgba(124,92,255,.25);color:#B7C0D1}
.sd-badge--free{background:rgba(16,185,129,.15);border-color:rgba(16,185,129,.3);color:#34D399}
.sd-badge--prod{background:rgba(124,92,255,.2);border-color:#7C5CFF;color:#fff}
.sd-info__title{font-family:'Space Grotesk',sans-serif;font-size:1.8rem;font-weight:800;line-height:1.25;margin-bottom:10px}
.sd-info__desc{color:#7A8599;font-size:.92rem;line-height:1.6;margin-bottom:16px}

/* TRUST */
.sd-trust{display:flex;flex-wrap:wrap;gap:14px;margin-bottom:20px;font-size:.82rem;color:#7A8599}
.sd-trust__item{display:flex;align-items:center;gap:4px}

/* PRICE BOX */
.sd-price-box{background:rgba(17,24,39,.6);border:1px solid rgba(124,92,255,.1);border-radius:12px;padding:20px;margin-bottom:20px}
.sd-price__value{font-size:2rem;font-weight:800;color:#00D1FF}
.sd-price__value--free{color:#34D399}
.sd-price-box form{display:flex;flex-direction:column;gap:8px;margin-top:14px}

/* BUTTONS */
.sd-btn{display:inline-flex;align-items:center;justify-content:center;gap:6px;padding:12px 22px;border-radius:8px;font-weight:600;font-size:.9rem;text-decoration:none!important;transition:all .3s;border:none;cursor:pointer;width:100%}
.sd-btn--primary{background:linear-gradient(135deg,#7C5CFF,#6B4FE0);color:#fff!important;box-shadow:0 4px 16px rgba(124,92,255,.3)}
.sd-btn--primary:hover{transform:translateY(-2px);box-shadow:0 6px 24px rgba(124,92,255,.4)}
.sd-btn--secondary{background:rgba(124,92,255,.1);border:1px solid #7C5CFF;color:#7C5CFF!important}
.sd-btn--secondary:hover{background:rgba(124,92,255,.2)}
.sd-btn--demo{background:rgba(16,185,129,.15);border:1px solid #34D399;color:#34D399!important;margin-top:8px}
.sd-btn--demo:hover{background:rgba(16,185,129,.25)}
.sd-btn--ghost{background:transparent;color:#B7C0D1!important;border:1px solid rgba(255,255,255,.15)}
.sd-btn--ghost:hover{border-color:#7C5CFF;color:#F5F7FA!important}
.sd-btn--lg{padding:14px 28px;font-size:1rem}
.sd-btn--sm{padding:10px 18px;font-size:.85rem;width:auto}

/* MESSAGE */
.sd-message{display:none;margin-top:10px;padding:10px;border-radius:6px;font-size:.85rem}
.sd-message--success{background:rgba(16,185,129,.1);color:#34D399}
.sd-message--error{background:rgba(239,68,68,.1);color:#F87171}

/* AUTHOR */
.sd-author{display:flex;align-items:center;gap:12px;padding-top:16px;border-top:1px solid rgba(124,92,255,.08)}
.sd-author__avatar{width:40px;height:40px;border-radius:8px;object-fit:cover;flex-shrink:0}
.sd-author__avatar--placeholder{background:linear-gradient(135deg,#7C5CFF,#00D1FF);color:#fff;display:flex;align-items:center;justify-content:center;font-weight:700;font-size:1rem}
.sd-author__name{display:block;font-size:.88rem;font-weight:600;color:#F5F7FA}
.sd-author__link{font-size:.78rem;color:#7C5CFF;text-decoration:none!important}
.sd-author__link:hover{color:#00D1FF}

/* FEATURES */
.sd-features{display:grid;grid-template-columns:repeat(2,1fr);gap:10px}
.sd-feature{display:flex;align-items:center;gap:10px;padding:12px 16px;background:rgba(17,24,39,.6);border:1px solid rgba(124,92,255,.06);border-radius:8px;font-size:.88rem;color:#D1D5DB}
.sd-feature__check{color:#34D399;font-weight:700;font-size:1rem}

/* VIDEO */
.sd-video{position:relative;padding-bottom:56.25%;height:0;overflow:hidden;border-radius:12px;border:1px solid rgba(124,92,255,.1)}
.sd-video iframe{position:absolute;top:0;left:0;width:100%;height:100%;border:none}

/* SPECS */
.sd-specs{display:grid;grid-template-columns:repeat(2,1fr);gap:12px}
.sd-spec{display:flex;justify-content:space-between;padding:12px 16px;background:rgba(17,24,39,.6);border:1px solid rgba(124,92,255,.06);border-radius:8px;font-size:.85rem}
.sd-spec__label{color:#7A8599}
.sd-spec__value{color:#F5F7FA;font-weight:600}

/* CONTENT */
.sd-content{font-size:1rem;line-height:1.8;color:#D1D5DB}
.sd-content p{margin-bottom:1.5rem}
.sd-content img{max-width:100%;border-radius:10px;margin:1rem 0}
.sd-content a{color:#7C5CFF}
.sd-content blockquote{border-left:3px solid #7C5CFF;padding:12px 16px;margin:1.5rem 0;background:rgba(124,92,255,.05);border-radius:0 8px 8px 0;color:#B7C0D1}
.sd-content ul,.sd-content ol{padding-left:1.5rem;margin-bottom:1.5rem}
.sd-content li{margin-bottom:.5rem}

/* REVIEWS */
.sd-rating-summary{display:flex;align-items:center;gap:16px;margin-bottom:16px}
.sd-rating-big{font-size:2.5rem;font-weight:800;color:#FBBF24}
.sd-rating-big small{font-size:1rem;color:#7A8599}
.sd-rating-count{font-size:.88rem;color:#7A8599}
.sd-rating-bars{margin-bottom:24px}
.sd-rbar{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:.78rem;color:#7A8599}
.sd-rbar__track{flex:1;height:6px;background:rgba(17,24,39,.8);border-radius:3px;overflow:hidden}
.sd-rbar__fill{height:100%;background:#FBBF24;border-radius:3px}
.sd-review{padding:16px 0;border-bottom:1px solid rgba(124,92,255,.06)}
.sd-review__head{display:flex;align-items:center;gap:8px;margin-bottom:6px;font-size:.85rem}
.sd-review__head strong{color:#F5F7FA}
.sd-verified{font-size:.72rem;color:#34D399;background:rgba(16,185,129,.1);padding:2px 6px;border-radius:4px}
.sd-review__date{margin-left:auto;font-size:.75rem;color:#7A8599}
.sd-review__stars{color:#FBBF24;font-size:.9rem;margin-bottom:6px}
.sd-review__title{font-weight:600;color:#F5F7FA;margin-bottom:4px}
.sd-review p{color:#B7C0D1;font-size:.88rem;line-height:1.5;margin:0}

/* RELATED */
.sd-related{display:grid;grid-template-columns:repeat(4,1fr);gap:16px}
.sd-related__card{background:rgba(17,24,39,.6);border:1px solid rgba(124,92,255,.08);border-radius:12px;overflow:hidden;text-decoration:none!important;transition:all .3s}
.sd-related__card:hover{border-color:#7C5CFF;transform:translateY(-4px)}
.sd-related__img{aspect-ratio:16/10;overflow:hidden}
.sd-related__img img{width:100%;height:100%;object-fit:cover;transition:transform .4s}
.sd-related__card:hover .sd-related__img img{transform:scale(1.05)}
.sd-related__body{padding:12px 14px}
.sd-related__body h3{font-size:.82rem;font-weight:600;color:#F5F7FA;margin:0 0 6px;line-height:1.3}
.sd-related__price{font-size:.82rem;font-weight:700;color:#00D1FF}

/* CTA */
.sd-cta{padding:64px 24px;background:radial-gradient(ellipse at 50% 50%,rgba(124,92,255,.08) 0%,transparent 60%)}
.sd-cta h2{font-family:'Space Grotesk',sans-serif;font-size:1.6rem;font-weight:700;margin-bottom:8px}
.sd-cta p{color:#7A8599;margin-bottom:24px}
.sd-cta__btns{display:flex;gap:12px;justify-content:center;flex-wrap:wrap}
.sd-cta__btns .sd-btn{width:auto}

/* STICKY MOBILE CTA */
.sd-sticky-cta{display:none;position:fixed;bottom:0;left:0;right:0;background:rgba(7,11,20,.95);backdrop-filter:blur(10px);border-top:1px solid rgba(124,92,255,.1);padding:12px 20px;z-index:200;align-items:center;justify-content:space-between}
.sd-sticky-cta__price{font-size:1.1rem;font-weight:800;color:#00D1FF}

/* RESPONSIVE */
@media(max-width:1024px){
    .sd-hero__grid{grid-template-columns:1fr}
    .sd-related{grid-template-columns:repeat(2,1fr)}
    .sd-specs{grid-template-columns:1fr}
}
@media(max-width:768px){
    .sd-hero{padding:60px 20px 32px}
    .sd-info__title{font-size:1.4rem}
    .sd-features{grid-template-columns:1fr}
    .sd-related{grid-template-columns:1fr}
    .sd-sticky-cta{display:flex}
    .sd-page{padding-bottom:70px}
    .sd-cta__btns{flex-direction:column;align-items:center}
    .sd-cta__btns .sd-btn{width:100%;max-width:300px}
}

/* === ADDITIONAL OPTIMIZATION — Demo-first, Cinematic, Trust === */

/* AUTOPLAY VIDEO PREVIEW */
.sd-gallery__video{position:relative;border-radius:14px;overflow:hidden;border:1px solid rgba(124,92,255,.15);margin-bottom:12px;background:#111827}
.sd-gallery__video video{width:100%;height:auto;max-height:300px;object-fit:cover;display:block}
.sd-gallery__video-badge{position:absolute;top:12px;left:12px;padding:4px 12px;border-radius:6px;font-size:.72rem;font-weight:600;background:rgba(7,11,20,.8);border:1px solid rgba(124,92,255,.3);color:#00D1FF;backdrop-filter:blur(4px)}

/* CTA PULSE ANIMATION */
.sd-btn--pulse{animation:ctaPulse 2s infinite}
@keyframes ctaPulse{0%,100%{box-shadow:0 0 0 0 rgba(16,185,129,.4)}50%{box-shadow:0 0 0 10px rgba(16,185,129,0)}}

/* SAVE BUTTON */
.sd-btn--save{background:transparent;border:1px solid rgba(255,255,255,.15);color:#B7C0D1!important}
.sd-btn--save:hover{border-color:#F87171;color:#F87171!important;background:rgba(248,113,113,.05)}

/* TRUST PANEL */
.sd-sec--trust{background:linear-gradient(180deg,rgba(124,92,255,.03) 0%,rgba(7,11,20,1) 100%)}
.sd-trust-panel{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}
.sd-trust-item{display:flex;align-items:center;gap:10px;padding:14px 18px;background:rgba(17,24,39,.6);border:1px solid rgba(16,185,129,.1);border-radius:10px;font-size:.88rem;color:#D1D5DB;transition:all .3s}
.sd-trust-item:hover{border-color:#34D399;transform:translateY(-2px);box-shadow:0 4px 16px rgba(16,185,129,.08)}
.sd-trust-item__icon{font-size:1.1rem}

/* FADE-IN ANIMATION */
.sd-fadein{opacity:0;transform:translateY(20px);transition:opacity .6s ease,transform .6s ease}
.sd-fadein.visible{opacity:1;transform:translateY(0)}

/* GALLERY IMAGE ZOOM HOVER */
.sd-gallery__main{position:relative;overflow:hidden}
.sd-gallery__main img{transition:transform .5s cubic-bezier(.4,0,.2,1)}
.sd-gallery__main:hover img{transform:scale(1.03)}

/* HERO GLOW ENHANCEMENT */
.sd-hero__bg::after{content:'';position:absolute;top:50%;left:50%;width:400px;height:400px;background:rgba(124,92,255,.06);border-radius:50%;filter:blur(100px);transform:translate(-50%,-50%);animation:heroGlow 4s ease-in-out infinite alternate}
@keyframes heroGlow{0%{opacity:.5;transform:translate(-50%,-50%) scale(1)}100%{opacity:1;transform:translate(-50%,-50%) scale(1.2)}}

/* RESPONSIVE TRUST PANEL */
@media(max-width:768px){
    .sd-trust-panel{grid-template-columns:repeat(2,1fr)}
}
@media(max-width:480px){
    .sd-trust-panel{grid-template-columns:1fr}
}