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

html{
    scroll-behavior:smooth;
}

:root{
    --accent:#ff2e2e;
    --bg:#060606;
    --card:#101010;
    --text:#ffffff;
    --muted:#b8b8b8;
}

body{
    background:var(--bg);
    color:var(--text);
    font-family:'Inter',sans-serif;
    overflow-x:hidden;
    position:relative;
}

/* Background Grid */

.bg-overlay{
    position:fixed;
    inset:0;
    z-index:-3;

    background:
    linear-gradient(rgba(255,255,255,.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255,255,255,.025) 1px, transparent 1px);

    background-size:55px 55px;
}

/* Mouse Glow */

body::after{
    content:"";

    position:fixed;

    width:600px;
    height:600px;

    background:
    radial-gradient(
        circle,
        rgba(255,46,46,.07),
        transparent 72%
    );

    top:var(--mouse-y);
    left:var(--mouse-x);

    transform:translate(-50%,-50%);

    pointer-events:none;

    z-index:-2;
}

/* Hero */

.hero{
    min-height:100vh;

    background:
    linear-gradient(to bottom, rgba(0,0,0,.72), rgba(0,0,0,.92)),
    url('https://trentstuning.com/images/1.jpg') center/cover;

    padding:40px 7%;

    position:relative;
}

/* Navbar */

.navbar{
    display:flex;
    justify-content:space-between;
    align-items:center;

    position:sticky;
    top:20px;

    z-index:999;

    transition:
    background .25s ease,
    padding .25s ease,
    border-radius .25s ease,
    border .25s ease,
    backdrop-filter .25s ease;
}

.logo{
    display:flex;
    flex-direction:column;
}

.logo-main{
    font-family:'Orbitron',sans-serif;
    font-size:1.8rem;
    font-weight:800;
    letter-spacing:3px;
}

.logo-sub{
    color:var(--accent);
    letter-spacing:4px;
    font-size:.82rem;
    font-weight:600;
}

.nav-links{
    display:flex;
    gap:30px;
}

.nav-links a{
    color:#fff;
    text-decoration:none;
    position:relative;
    transition:.25s;
    font-weight:500;
}

.nav-links a::after{
    content:"";

    position:absolute;
    left:0;
    bottom:-7px;

    width:0%;
    height:2px;

    background:var(--accent);

    transition:.25s;
}

.nav-links a:hover{
    color:var(--accent);
}

.nav-links a:hover::after{
    width:100%;
}

/* Hero Content */

.hero-content{
    max-width:780px;
    padding-top:140px;
}

.hero-mini,
.section-mini{
    color:var(--accent);
    letter-spacing:3px;
    font-size:.8rem;
    margin-bottom:18px;
    font-weight:700;
}

.hero h1{
    font-size:5.3rem;
    line-height:.95;
    margin-bottom:30px;
    font-weight:800;
}

.hero-text{
    color:#c6c6c6;
    line-height:1.9;
    max-width:700px;
    margin-bottom:45px;
    font-size:1.08rem;
}

/* Buttons */

.hero-buttons{
    display:flex;
    gap:20px;
    flex-wrap:wrap;
}

.btn-primary,
.btn-secondary{
    padding:16px 30px;
    border-radius:14px;
    text-decoration:none;
    font-weight:600;
    position:relative;
    overflow:hidden;
}

/* Primary */

.btn-primary{
    background:var(--accent);
    color:#fff;

    transition:
    transform .2s ease,
    box-shadow .25s ease,
    background .25s ease;
}

.btn-primary::before{
    content:"";

    position:absolute;
    top:0;
    left:-120%;

    width:100%;
    height:100%;

    background:
    linear-gradient(
        90deg,
        transparent,
        rgba(255,255,255,.18),
        transparent
    );

    transition:.55s;
}

.btn-primary:hover::before{
    left:120%;
}

.btn-primary:hover{
    transform:translateY(-4px);

    box-shadow:
    0 14px 35px rgba(255,46,46,.35);
}

.btn-primary:active{
    transform:scale(.97);
}

/* Secondary */

.btn-secondary{
    border:1px solid rgba(255,255,255,.12);
    color:#fff;

    transition:
    transform .25s ease,
    background .25s ease,
    border-color .25s ease;
}

.btn-secondary:hover{
    background:rgba(255,255,255,.06);

    border-color:rgba(255,255,255,.22);

    transform:translateY(-4px);
}

.btn-secondary:active{
    transform:scale(.97);
}

/* Sections */

.stats,
.platforms,
.about,
.builds,
.reviews,
.process,
.contact{
    padding:110px 7%;
}

/* Stats */

.stats{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:25px;
}

.stat-card{
    background:var(--card);

    border:1px solid rgba(255,255,255,.05);

    border-radius:24px;

    padding:38px;

    transition:
    transform .25s ease,
    border-color .25s ease,
    box-shadow .25s ease;
}

.stat-card:hover{
    transform:translateY(-7px);

    border-color:rgba(255,46,46,.2);

    box-shadow:
    0 18px 40px rgba(0,0,0,.45);
}

.stat-card h2{
    margin-bottom:12px;
    font-size:2rem;
}

.stat-card p{
    color:#adadad;
}

/* Section Headings */

.section-header{
    margin-bottom:55px;
}

.section-header h2,
.about-left h2,
.contact-box h2{
    font-size:3.1rem;
    line-height:1.05;
}

/* Platforms */

.platform-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:25px;
}

.platform-card{
    background:var(--card);

    border-radius:24px;

    padding:35px;

    border:1px solid rgba(255,255,255,.05);

    position:relative;

    overflow:hidden;

    transition:
    transform .25s ease,
    border-color .25s ease,
    box-shadow .25s ease;
}

.platform-card::before{
    content:"";

    position:absolute;
    inset:0;

    background:
    linear-gradient(
        135deg,
        rgba(255,46,46,.14),
        transparent 45%
    );

    opacity:0;

    transition:.3s;
}

.platform-card:hover::before{
    opacity:1;
}

.platform-card:hover{
    transform:translateY(-8px);

    border-color:rgba(255,46,46,.22);

    box-shadow:
    0 20px 45px rgba(0,0,0,.45);
}

.platform-card h3{
    margin-bottom:15px;
    font-size:1.5rem;
}

.platform-card p{
    color:#bababa;
    line-height:1.8;
}

/* About */

.about{
    display:grid;
    grid-template-columns:1.1fr 1fr;
    gap:60px;
    align-items:center;
}

.about-left p{
    margin-top:25px;
    color:#bebebe;
    line-height:1.95;
}

.about-right{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:20px;
}

.about-box{
    height:190px;
    border-radius:24px;
    display:flex;
    align-items:flex-end;
    padding:25px;
    border:1px solid rgba(255,255,255,.05);
    overflow:hidden;

    transition:
    transform .3s ease,
    border-color .3s ease;

    background-size:cover;
    background-position:center;
    background-repeat:no-repeat;
}

.box-1{
    background-image:
    linear-gradient(to bottom, rgba(0,0,0,.2), rgba(0,0,0,.92)),
    url('https://trentstuning.com/images/13.jpg');

    background-position:center 30%;
}

.box-2{
    background-image:
    linear-gradient(to bottom, rgba(0,0,0,.2), rgba(0,0,0,.92)),
    url('https://trentstuning.com/images/14.jpg');

    background-position:bottom 30%;
}

.box-3{
    background-image:
    linear-gradient(to bottom, rgba(0,0,0,.2), rgba(0,0,0,.92)),
    url('https://trentstuning.com/images/15.png');

    background-position:center 30%;
}

.box-4{
    background-image:
    linear-gradient(to bottom, rgba(0,0,0,.2), rgba(0,0,0,.92)),
    url('https://trentstuning.com/images/16.jpg');

    background-position:bottom 30%;
}

.about-box:hover{
    transform:translateY(-7px);

    border-color:rgba(255,46,46,.22);
}

.about-box span{
    font-weight:700;
    font-size:1rem;
}

/* Builds */

.build-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:25px;
}

.build-card{
    background:var(--card);

    border-radius:24px;

    overflow:hidden;

    border:1px solid rgba(255,255,255,.05);

    transition:
    transform .3s ease,
    border-color .3s ease,
    box-shadow .3s ease;
}

.build-card:hover{
    transform:translateY(-10px);

    border-color:rgba(255,46,46,.22);

    box-shadow:
    0 25px 50px rgba(0,0,0,.45);
}

.build-card:hover .build-image{
    transform:scale(1.05);
}

.build-image{
    height:290px;
    transition:transform .5s ease;
}

.build1{
    background:url('https://trentstuning.com/images/17.jpg') center/cover;
}

.build2{
    background:url('https://trentstuning.com/images/18.jpg') center/cover;
}

.build3{
    background:url('https://trentstuning.com/images/19.jpg') center/cover;
}

.build-content{
    padding:32px;
}

.build-content h3{
    margin-bottom:14px;
    font-size:1.4rem;
}

.build-content p{
    color:#bababa;
    line-height:1.8;
}

/* Reviews */

.review-grid{
    display:grid;
    grid-template-columns:repeat(3,1fr);
    gap:25px;
}

.review-card{
    background:var(--card);

    padding:35px;

    border-radius:24px;

    border:1px solid rgba(255,255,255,.05);

    transition:
    transform .25s ease,
    border-color .25s ease,
    background .25s ease;
}

.review-card:hover{
    transform:translateY(-6px);

    background:#131313;

    border-color:rgba(255,46,46,.18);
}

.review-card p{
    line-height:1.95;
    color:#d0d0d0;
    margin-bottom:25px;
}

.review-card span{
    color:#ff6262;
    font-weight:600;
}

/* Process */

.process-grid{
    display:grid;
    grid-template-columns:repeat(4,1fr);
    gap:25px;
}

.process-card{
    background:var(--card);

    padding:35px;

    border-radius:24px;

    border:1px solid rgba(255,255,255,.05);

    transition:
    transform .25s ease,
    border-color .25s ease;
}

.process-card:hover{
    transform:translateY(-6px);

    border-color:rgba(255,46,46,.2);
}

.process-card h3{
    color:var(--accent);
    font-size:2rem;
    margin-bottom:20px;
}

.process-card p{
    color:#bdbdbd;
    line-height:1.8;
}

/* Contact */

.contact-box{
    background:
    linear-gradient(to bottom, rgba(0,0,0,.72), rgba(0,0,0,.92)),
    url('https://trentstuning.com/images/4.jpg') bottom/cover;

    border-radius:32px;

    padding:100px 60px;

    text-align:center;

    border:1px solid rgba(255,255,255,.05);
}

.contact-box p{
    color:#d0d0d0;
    line-height:1.9;
    max-width:700px;
    margin:25px auto 40px;
}

/* Footer */

footer{
    padding:70px 7% 40px;
}

.footer-top{
    display:flex;
    justify-content:space-between;
    gap:40px;
    flex-wrap:wrap;
    margin-bottom:40px;
}

.footer-brand p{
    color:#9f9f9f;
    margin-top:15px;
    line-height:1.8;
    max-width:500px;
}

.footer-links{
    display:flex;
    gap:20px;
}

.footer-links a{
    color:#fff;
    text-decoration:none;
    transition:.25s;
}

.footer-links a:hover{
    color:var(--accent);
}

.footer-bottom{
    border-top:1px solid rgba(255,255,255,.05);
    padding-top:30px;
}

.footer-bottom p{
    color:#777;
}

/* Scroll Reveal */

.hidden{
    opacity:0;
    transform:translateY(45px);
    transition:all .8s ease;
}

.show{
    opacity:1;
    transform:translateY(0px);
}

/* Responsive */

@media(max-width:1100px){

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

    .build-grid,
    .review-grid{
        grid-template-columns:1fr;
    }

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

}

@media(max-width:750px){

    .navbar{
        flex-direction:column;
        align-items:flex-start;
        gap:20px;
    }

    .nav-links{
        flex-wrap:wrap;
        gap:15px;
    }

    .hero h1{
        font-size:3.1rem;
    }

    .stats,
    .platform-grid,
    .process-grid,
    .about-right{
        grid-template-columns:1fr;
    }

    .section-header h2,
    .about-left h2,
    .contact-box h2{
        font-size:2.3rem;
    }

    .contact-box{
        padding:65px 30px;
    }

}

.transition-screen{
    position:fixed;
    inset:0;
    background:
    linear-gradient(
        90deg,
        #ff2e2e,
        #ff5959,
        #ff2e2e
    );

    transform:translateX(-100%);
    z-index:9998;
    pointer-events:none;
}

.transition-screen.active{
    animation:tuneSweep .55s ease forwards;
}

@keyframes tuneSweep{

    0%{
        transform:translateX(-100%);
    }

    50%{
        transform:translateX(0%);
    }

    100%{
        transform:translateX(100%);
    }

}

.tune-overlay{

    position:fixed;
    inset:0;

    background:rgba(0,0,0,.75);

    backdrop-filter:blur(18px);

    display:flex;
    align-items:center;
    justify-content:center;

    opacity:0;
    visibility:hidden;

    transition:.35s;

    z-index:9999;
}

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

.tune-modal{

    width:min(90%,700px);

    background:#111;

    border:1px solid rgba(255,46,46,.2);

    border-radius:28px;

    padding:40px;

    transform:translateY(60px);

    transition:.4s ease;
}

.tune-overlay.show .tune-modal{
    transform:translateY(0);
}

.platform-select{
    display:grid;
    grid-template-columns:repeat(2,1fr);
    gap:15px;
    margin-top:30px;
}

.platform-btn{

    background:#181818;

    color:white;

    border:1px solid rgba(255,255,255,.08);

    border-radius:18px;

    padding:20px;

    font-size:1rem;

    cursor:pointer;

    transition:.25s;
}

.platform-btn:hover{

    transform:translateY(-4px);

    border-color:#ff2e2e;

    box-shadow:
    0 10px 25px rgba(255,46,46,.2);
}

.close-modal{

    position:absolute;

    top:20px;
    right:20px;

    background:none;
    border:none;

    color:white;

    font-size:2rem;

    cursor:pointer;
}

@media(max-width:768px){

    .platform-select{
        grid-template-columns:1fr;
    }

}

.tune-progress{
    width:100%;
    height:6px;
    background:#1d1d1d;
    border-radius:999px;
    margin-bottom:30px;
    overflow:hidden;
}

.tune-progress-bar{
    width:20%;
    height:100%;
    background:var(--accent);
    transition:.35s ease;
}

.step{
    display:none;
}

.step.active{
    display:block;
    animation:fadeStep .3s ease;
}

@keyframes fadeStep{
    from{
        opacity:0;
        transform:translateY(15px);
    }
    to{
        opacity:1;
        transform:translateY(0);
    }
}

.step-number{
    color:var(--accent);
    letter-spacing:2px;
    font-size:.8rem;
    display:block;
    margin-bottom:15px;
}

.step h2{
    margin-bottom:25px;
}

.step input,
.step textarea{
    width:100%;
    background:#181818;
    border:1px solid rgba(255,255,255,.08);
    color:white;
    border-radius:14px;
    padding:16px;
    margin-bottom:15px;
    font-family:inherit;
}

.step textarea{
    min-height:140px;
    resize:vertical;
}

.tune-modal{
    position:relative;
}

.platform-btn,
.select-btn,
.next-step,
.submit-tune{

    font-family:'Inter',sans-serif;
    font-weight:600;
    font-size:1rem;
    color:white;

}

.select-grid{

    display:grid;
    grid-template-columns:repeat(auto-fill,minmax(100px,1fr));
    gap:10px;
    margin-top:20px;

}

.select-btn{

    background:#181818;
    border:1px solid rgba(255,255,255,.08);
    border-radius:14px;
    padding:14px;
    cursor:pointer;
    transition:.25s;

}

.select-btn:hover{

    border-color:var(--accent);
    transform:translateY(-2px);

}

.select-btn.selected{

    background:var(--accent);
    border-color:var(--accent);

}

.year-grid{

    max-height:350px;
    overflow-y:auto;
    padding-right:5px;

}

.input-error{

    border-color:#ff2e2e !important;

    box-shadow:
    0 0 0 3px rgba(255,46,46,.15);

}

.validation-message{

    color:#ff6262;
    font-size:.9rem;
    margin-top:10px;

}

.legal-section{

    margin-top:25px;

}

.legal-check{

    display:flex;
    align-items:flex-start;
    gap:12px;

    margin-top:20px;
    margin-bottom:10px;

    cursor:pointer;

    color:white;
    font-size:.95rem;

}

.legal-check input{

    width:18px;
    height:18px;

    margin-top:2px;

    accent-color:var(--accent);

}

.legal-box{

    max-height:120px;

    overflow-y:auto;

    padding:15px;

    background:#181818;

    border:1px solid rgba(255,255,255,.08);

    border-radius:12px;

    color:#c9c9c9;

    line-height:1.7;

    font-size:.85rem;

}

.submit-tune:disabled{

    background:#444 !important;

    color:#999 !important;

    cursor:not-allowed;

    box-shadow:none !important;

    opacity:.7;

}

.submit-tune:disabled:hover{

    transform:none !important;

    box-shadow:none !important;

}

.submit-tune:disabled::before{

    display:none;

}

.submit-tune{

    display:block;

    margin:30px auto 0;

}

.success-message{

    color:#d0d0d0;

    line-height:1.8;

    text-align:center;

    margin-bottom:30px;

}

.step[data-step="7"]{

    text-align:center;

}

.step[data-step="7"] .btn-primary{

    display:inline-block;

    margin-top:20px;

}