:root{
    --bg:#03091a;
    --bg2:#081127;
    --card:rgba(17,26,53,.66);
    --card-strong:rgba(17,26,53,.94);
    --text:#f7f9ff;
    --muted:#9ba7c7;
    --line:rgba(255,255,255,.08);
    --primary:#7c8cff;
    --primary2:#9f6bff;
    --shadow:0 20px 80px rgba(0,0,0,.35);
}

body.light{
    --bg:#edf2fb;
    --bg2:#dfe8f6;
    --card:rgba(255,255,255,.82);
    --card-strong:rgba(255,255,255,.96);
    --text:#0f172a;
    --muted:#5c6a85;
    --line:rgba(16,24,43,.08);
    --primary:#5b6dff;
    --primary2:#8664ff;
    --shadow:0 18px 44px rgba(60,80,120,.16);
}

*{box-sizing:border-box;}
html{scroll-behavior:smooth;}

body{
    margin:0;
    font-family:-apple-system,BlinkMacSystemFont,"SF Pro Display","Segoe UI",Roboto,Arial,sans-serif;
    background:
        radial-gradient(circle at top center, rgba(83,126,255,.18), transparent 25%),
        radial-gradient(circle at bottom center, rgba(0,214,255,.08), transparent 24%),
        linear-gradient(180deg,var(--bg),var(--bg2));
    color:var(--text);
    min-height:100vh;
    overflow-x:hidden;
    transition:background .35s ease,color .35s ease;
}

body.modal-open{
    overflow:hidden;
}

a{color:inherit;text-decoration:none;}
img{display:block;max-width:100%;}

.site-bg{
    position:fixed;
    inset:0;
    z-index:0;
    pointer-events:none;
    background:
        radial-gradient(circle at 15% 20%, rgba(126,90,255,.10), transparent 18%),
        radial-gradient(circle at 80% 10%, rgba(0,170,255,.08), transparent 20%),
        radial-gradient(circle at 50% 90%, rgba(32,227,178,.06), transparent 18%);
}

.site-header,main,.site-footer{
    position:relative;
    z-index:2;
}

.container{
    width:min(1280px, calc(100% - 40px));
    margin:0 auto;
}

.container.narrow{
    width:min(980px, calc(100% - 40px));
}

/* HEADER */
.site-header{
    position:sticky;
    top:0;
    z-index:50;
    backdrop-filter:blur(18px);
    background:rgba(3,9,26,.44);
    border-bottom:1px solid var(--line);
}

body.light .site-header{
    background:rgba(237,242,251,.72);
}

.header-inner{
    min-height:84px;
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:18px;
}

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

.brand-logo{
    width:42px;
    height:42px;
    border-radius:14px;
    display:grid;
    place-items:center;
    font-size:22px;
    background:linear-gradient(135deg, rgba(255,255,255,.18), rgba(255,255,255,.04));
    border:1px solid var(--line);
    box-shadow:var(--shadow);
}

.brand-text{
    display:flex;
    flex-direction:column;
    line-height:1.1;
}

.brand-text strong{
    font-size:18px;
}

.brand-text small{
    margin-top:4px;
    font-size:12px;
    color:var(--muted);
}

.main-nav{
    flex:1;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:8px;
}

.main-nav > a,
.nav-dropdown-btn{
    border:none;
    background:transparent;
    color:var(--text);
    padding:12px 14px;
    border-radius:14px;
    font-size:14px;
    cursor:pointer;
    transition:.22s ease;
}

.main-nav > a:hover,
.main-nav > a.active,
.nav-dropdown-btn:hover,
.nav-dropdown-btn.active{
    background:rgba(255,255,255,.06);
}

body.light .main-nav > a:hover,
body.light .main-nav > a.active,
body.light .nav-dropdown-btn:hover,
body.light .nav-dropdown-btn.active{
    background:rgba(20,30,50,.06);
}

.nav-dropdown{
    position:relative;
    padding-bottom:12px;
    margin-bottom:-12px;
}

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

.caret{
    font-size:11px;
    transition:transform .22s ease;
}

.nav-dropdown.open .caret{
    transform:rotate(180deg);
}

.nav-dropdown-menu{
    position:absolute;
    top:100%;
    left:0;
    min-width:240px;
    padding:12px;
    border-radius:22px;
    background:var(--card-strong);
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    backdrop-filter:blur(18px);
    opacity:0;
    visibility:hidden;
    pointer-events:none;
    transform:translateY(8px);
    transition:.2s ease;
}

.nav-dropdown.open .nav-dropdown-menu,
.nav-dropdown:hover .nav-dropdown-menu{
    opacity:1;
    visibility:visible;
    pointer-events:auto;
    transform:translateY(0);
}

.nav-dropdown-menu a{
    display:block;
    padding:14px 16px;
    border-radius:16px;
    transition:.2s ease;
}

.nav-dropdown-menu a:hover{
    background:rgba(255,255,255,.06);
}

body.light .nav-dropdown-menu a:hover{
    background:rgba(20,30,50,.05);
}

.header-actions{
    display:flex;
    align-items:center;
    gap:10px;
}

.lang-switcher{
    display:flex;
    align-items:center;
    gap:6px;
    padding:6px;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
}

.lang-switcher a{
    padding:7px 10px;
    border-radius:999px;
    color:var(--muted);
    font-size:13px;
}

.lang-switcher a.active{
    color:#fff;
    background:linear-gradient(135deg,var(--primary),var(--primary2));
}

.theme-switch{
    width:70px;
    min-width:70px;
    height:40px;
    padding:0;
    border:none;
    background:transparent;
    cursor:pointer;
    display:inline-flex;
    align-items:center;
    justify-content:center;
}

.theme-switch-track{
    position:relative;
    width:64px;
    height:32px;
    border-radius:999px;
    background:linear-gradient(135deg,#172348,#2b1d47);
    border:1px solid rgba(255,255,255,.12);
    box-shadow:inset 0 1px 2px rgba(255,255,255,.06);
    transition:all .28s ease;
    overflow:hidden;
}

body.light .theme-switch-track{
    background:linear-gradient(135deg,#8fccff,#d5e4ff);
    border-color:rgba(0,0,0,.08);
}

.theme-switch-icon{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    font-size:12px;
    line-height:1;
    z-index:1;
    pointer-events:none;
    user-select:none;
}

.theme-switch-moon{
    left:10px;
    color:#f7d76a;
}

.theme-switch-sun{
    right:10px;
    color:#ffffff;
}

body.light .theme-switch-moon{
    color:#6d6d6d;
}

body.light .theme-switch-sun{
    color:#ffb300;
}

.theme-switch-thumb{
    position:absolute;
    top:3px;
    left:3px;
    width:24px;
    height:24px;
    border-radius:50%;
    background:#ffffff;
    box-shadow:0 4px 12px rgba(0,0,0,.18);
    transition:transform .28s ease;
    z-index:2;
}

body.light .theme-switch-thumb{
    transform:translateX(32px);
}

.login-btn{
    height:46px;
    padding:0 18px;
    border-radius:999px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-size:14px;
    color:#fff;
    border:1px solid transparent;
    background:linear-gradient(135deg,var(--primary),var(--primary2));
    box-shadow:0 12px 28px rgba(92,102,255,.24);
}

.mobile-menu-btn{
    display:none;
    width:46px;
    height:46px;
    border:none;
    border-radius:14px;
    background:rgba(255,255,255,.08);
    color:var(--text);
    font-size:22px;
}

.mobile-nav{
    display:none;
    flex-direction:column;
    gap:10px;
    padding:0 20px 20px;
}

.mobile-nav a{
    padding:13px 16px;
    border-radius:14px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
}

/* HERO */
.hero-section{
    padding:54px 0 24px;
}

.hero-grid{
    display:grid;
    grid-template-columns:1.05fr .95fr;
    gap:30px;
    align-items:center;
}

.hero-left,
.glass-card,
.tech-card,
.faq-item,
.cta-card,
.inner-card{
    background:var(--card);
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    backdrop-filter:blur(16px);
}

.hero-left{
    padding:42px;
    border-radius:34px;
    overflow:hidden;
}

.hero-badge{
    display:inline-flex;
    padding:10px 16px;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.05);
    font-size:14px;
    color:#c8d3f4;
    margin-bottom:22px;
}

body.light .hero-badge{
    color:#4e5d87;
}

.hero-title{
    margin:0 0 18px;
    font-size:clamp(40px,5vw,72px);
    line-height:1.02;
    letter-spacing:-1.8px;
}

.hero-animated-title{
    animation:heroFloat 4s ease-in-out infinite;
}

@keyframes heroFloat{
    0%{transform:translateY(0);}
    50%{transform:translateY(-6px);}
    100%{transform:translateY(0);}
}

.hero-desc{
    margin:0;
    color:var(--muted);
    font-size:18px;
    line-height:1.75;
    max-width:700px;
}

.hero-buttons{
    display:flex;
    flex-wrap:wrap;
    gap:14px;
    margin-top:28px;
}

.btn{
    min-height:52px;
    padding:0 22px;
    border-radius:999px;
    display:inline-flex;
    align-items:center;
    justify-content:center;
    font-weight:600;
    transition:.22s ease;
}

.btn-primary{
    color:#fff;
    background:linear-gradient(135deg,var(--primary),var(--primary2));
    box-shadow:0 14px 34px rgba(92,102,255,.22);
}

.btn-secondary{
    color:var(--text);
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
}

.hero-mini-text{
    margin-top:24px;
    font-size:14px;
    color:var(--muted);
}

/* BANNER */
.hero-slides-wrap{
    width:100%;
}

.hero-slides{
    position:relative;
    width:100%;
    min-height:650px;
    background:transparent;
    border:none;
    box-shadow:none;
    overflow:visible;
}

.hero-slide{
    position:absolute;
    inset:0;
    width:100%;
    height:100%;
    opacity:0;
    object-fit:contain;
    transition:opacity .8s ease;
    padding:0;
    background:transparent;
    border:none;
    box-shadow:none;
    transform:scale(1.12);
    transform-origin:center center;
}

.hero-slide.active{
    opacity:1;
}

.hero-dots{
    display:flex;
    justify-content:center;
    gap:8px;
    margin-top:10px;
}

.dot{
    width:10px;
    height:10px;
    border-radius:999px;
    background:rgba(255,255,255,.22);
    transition:.22s ease;
}

.dot.active{
    width:24px;
    background:linear-gradient(135deg,var(--primary),var(--primary2));
}

/* FEATURES */
.features-section,
.showcase-section,
.faq-section,
.screens-section,
.cta-section,
.inner-page{
    padding:28px 0 24px;
}

.feature-cards{
    display:grid;
    grid-template-columns:repeat(3,minmax(0,1fr));
    gap:20px;
}

.glass-card{
    padding:28px;
    border-radius:26px;
    transition:transform .22s ease;
}

.glass-card:hover,
.tech-card:hover{
    transform:translateY(-4px);
}

.glass-card h3{
    margin:0 0 10px;
    font-size:22px;
}

.glass-card p{
    margin:0;
    color:var(--muted);
    line-height:1.75;
}

/* SECTION HEAD */
.section-head{
    margin-bottom:24px;
}

.section-head.center{
    text-align:center;
}

.section-head h2{
    margin:0 0 10px;
    font-size:clamp(28px,3.8vw,46px);
    letter-spacing:-1px;
}

.section-head p{
    margin:0 auto;
    max-width:860px;
    color:var(--muted);
    line-height:1.8;
    font-size:17px;
}

/* TECH */
.tech-cards-grid{
    display:grid !important;
    grid-template-columns:repeat(3, minmax(0,1fr)) !important;
    gap:18px !important;
    align-items:stretch !important;
}

.tech-card{
    display:flex !important;
    flex-direction:column !important;
    justify-content:flex-start !important;
    min-height:220px;
    padding:22px;
    border-radius:24px;
    text-align:left;
}

.tech-logo-wrap{
    width:72px;
    height:72px;
    margin-bottom:16px;
    border-radius:20px;
    display:flex;
    align-items:center;
    justify-content:center;
    background:rgba(255,255,255,.06);
    border:1px solid var(--line);
}

body.light .tech-logo-wrap{
    background:rgba(20,30,50,.04);
}

.tech-logo{
    width:42px;
    height:42px;
    object-fit:contain;
}

.tech-card h3{
    margin:0 0 10px;
    font-size:22px;
}

.tech-card p{
    margin:0;
    color:var(--muted);
    font-size:15px;
    line-height:1.7;
}

/* FAQ */
.faq-list{
    display:grid;
    gap:14px;
}

.faq-item{
    border-radius:24px;
    overflow:hidden;
}

.faq-item summary{
    list-style:none;
    cursor:pointer;
    padding:22px 24px;
    font-size:18px;
    font-weight:600;
}

.faq-item summary::-webkit-details-marker{
    display:none;
}

.faq-item p{
    margin:0;
    padding:0 24px 22px;
    color:var(--muted);
    line-height:1.8;
}

/* SCREENS */
.screens-track-wrap{
    position:relative;
    padding:0 64px;
}

.screens-track{
    display:flex;
    gap:18px;
    overflow:auto;
    scroll-behavior:smooth;
    padding:10px 2px 14px;
    scrollbar-width:none;
}

.screens-track::-webkit-scrollbar{
    display:none;
}

.screen-card{
    flex:0 0 240px;
    border-radius:28px;
    overflow:hidden;
    border:1px solid var(--line);
    background:var(--card);
    box-shadow:var(--shadow);
    transform:scale(.95);
    opacity:.82;
    transition:.22s ease;
    cursor:pointer;
    position:relative;
    z-index:1;
}

.screen-card.focus,
.screen-card:hover{
    transform:scale(1);
    opacity:1;
}

.screen-card img{
    width:100%;
    height:100%;
    object-fit:cover;
}

/* NET BÜYÜTME */
.screen-card.expanded{
    position:fixed;
    top:50%;
    left:50%;
    width:min(92vw, 430px);
    max-height:90vh;
    transform:translate(-50%, -50%) !important;
    z-index:9999;
    opacity:1 !important;
    border-radius:28px;
    overflow:hidden;
    box-shadow:0 30px 100px rgba(0,0,0,.45);
}

.screen-card.expanded img{
    width:100%;
    height:auto;
    max-height:90vh;
    object-fit:contain;
    image-rendering:auto;
    filter:none !important;
    transform:none !important;
}

.screen-overlay{
    position:fixed;
    inset:0;
    background:rgba(3,9,26,.78);
    z-index:9998;
    opacity:0;
    visibility:hidden;
    transition:.2s ease;
}

body.light .screen-overlay{
    background:rgba(15,23,42,.55);
}

.screen-overlay.show{
    opacity:1;
    visibility:visible;
}

.screens-nav{
    position:absolute;
    top:50%;
    transform:translateY(-50%);
    width:48px;
    height:48px;
    border:none;
    border-radius:999px;
    background:var(--card-strong);
    color:var(--text);
    font-size:30px;
    cursor:pointer;
    border:1px solid var(--line);
    box-shadow:var(--shadow);
    z-index:4;
}

.screens-nav.prev{ left:0; }
.screens-nav.next{ right:0; }

/* CTA / INNER */
.cta-card{
    padding:30px;
    border-radius:32px;
    display:flex;
    justify-content:space-between;
    align-items:center;
    gap:24px;
}

.cta-card h2{
    margin:0 0 10px;
    font-size:34px;
    letter-spacing:-1px;
}

.cta-card p{
    margin:0;
    color:var(--muted);
    line-height:1.8;
    max-width:800px;
}

.inner-card{
    padding:34px;
    border-radius:32px;
}

.inner-card h1{
    margin:0 0 10px;
    font-size:42px;
    letter-spacing:-1px;
}

.inner-card p{
    margin:0;
    color:var(--muted);
    line-height:1.8;
    font-size:17px;
}

.software-tabs{
    display:flex;
    flex-wrap:wrap;
    gap:12px;
    margin-top:24px;
}

.software-tabs a{
    padding:12px 18px;
    border-radius:999px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.04);
    transition:.22s ease;
}

.software-tabs a.active{
    color:#fff;
    background:linear-gradient(135deg,var(--primary),var(--primary2));
}

.software-content{
    margin-top:24px;
    padding:22px;
    border-radius:24px;
    border:1px solid var(--line);
    background:rgba(255,255,255,.03);
}

/* FOOTER */
.site-footer{
    padding:26px 0 34px;
}

.footer-inner{
    padding-top:18px;
    border-top:1px solid var(--line);
    color:var(--muted);
    font-size:14px;
}

/* RESPONSIVE */
@media (max-width:1180px){
    .lang-switcher{display:none;}
}

@media (max-width:980px){
    .main-nav,
    .header-actions{
        display:none;
    }

    .mobile-menu-btn{
        display:block;
    }

    .mobile-nav.open{
        display:flex;
    }

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

    .feature-cards,
    .tech-cards-grid{
        grid-template-columns:repeat(2, minmax(0,1fr)) !important;
    }

    .hero-slides{
        min-height:520px;
    }

    .cta-card{
        flex-direction:column;
        align-items:flex-start;
    }
}

@media (max-width:640px){
    .container{
        width:min(100% - 24px, 1280px);
    }

    .header-inner{
        min-height:72px;
    }

    .brand-text small{
        display:none;
    }

    .hero-section{
        padding-top:24px;
    }

    .hero-left{
        padding:26px 20px;
        border-radius:24px;
    }

    .hero-title{
        font-size:36px;
        letter-spacing:-1px;
    }

    .hero-desc{
        font-size:15px;
        line-height:1.7;
    }

    .feature-cards,
    .tech-cards-grid{
        grid-template-columns:1fr !important;
    }

    .glass-card,
    .tech-card{
        border-radius:22px;
    }

    .hero-slides{
        min-height:380px;
    }

    .hero-slide{
        transform:scale(1.08);
    }

    .faq-item summary{
        font-size:16px;
        padding:18px;
    }

    .faq-item p{
        padding:0 18px 18px;
    }

    .screens-track-wrap{
        padding:0 44px;
    }

    .screen-card{
        flex:0 0 180px;
        border-radius:22px;
    }

    .screen-card.expanded{
        width:min(92vw, 360px);
    }

    .screens-nav{
        width:38px;
        height:38px;
        font-size:24px;
    }

    .inner-card{
        padding:24px 18px;
        border-radius:24px;
    }

    .inner-card h1{
        font-size:30px;
    }

    .cta-card{
        padding:22px;
        border-radius:24px;
    }

    .cta-card h2{
        font-size:28px;
    }
}