:root{
    --bg:#f6f8fc;
    --text:#1e293b;
    --glass:rgba(255,255,255,.25);
    --border:rgba(255,255,255,.35);
    --shadow:0 8px 32px rgba(31,38,135,.15);
    --primary:#4f46e5;
    --secondary:#06b6d4;
}

.dark-mode{
    --bg:#0f172a;
    --text:#f8fafc;
    --glass:rgba(255,255,255,.08);
    --border:rgba(255,255,255,.1);
    --shadow:0 8px 32px rgba(0,0,0,.4);
}

html{
    scroll-behavior:smooth;
}

body{
    background:var(--bg);
    color:var(--text);
    transition:.4s;
    overflow-x:hidden;
    font-family:'Segoe UI',sans-serif;
}

/* =========================
   ANIMATED BACKGROUND
========================= */

.bg-blur{
    position:fixed;
    width:500px;
    height:500px;
    border-radius:50%;
    filter:blur(100px);
    z-index:-1;
    animation:float 12s infinite ease-in-out;
}

.bg1{
    background:#4f46e5;
    top:-150px;
    left:-150px;
}

.bg2{
    background:#06b6d4;
    bottom:-150px;
    right:-150px;
}

@keyframes float{
    0%{transform:translateY(0);}
    50%{transform:translateY(40px);}
    100%{transform:translateY(0);}
}

/* =========================
   PREMIUM FLOATING NAVBAR
========================= */

.navbar{
    width:95%;
    max-width:1300px;
    margin:15px auto;
    left:0;
    right:0;
    border-radius:20px;
    backdrop-filter:blur(20px);
    background:rgba(255,255,255,.75)!important;
    border:1px solid rgba(255,255,255,.3);
    box-shadow:0 8px 30px rgba(0,0,0,.08);
    transition:.4s;
}

.dark-mode .navbar{
    background:rgba(15,23,42,.85)!important;
    border:1px solid rgba(255,255,255,.08);
    box-shadow:0 8px 30px rgba(0,0,0,.4);
}

/* =========================
   LOGO
========================= */

.navbar-brand{
    font-size:1.8rem;
    font-weight:900;
    letter-spacing:2px;
    text-transform:uppercase;
    background:linear-gradient(
        135deg,
        #4338ca,
        #06b6d4
    );
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}

/* =========================
   MENU LINKS
========================= */

.navbar-nav .nav-link{
    color:#0f172a !important;
    font-weight:700;
    font-size:15px;
    letter-spacing:.8px;
    margin:0 12px;
    position:relative;
    transition:.3s;
}

.dark-mode .navbar-nav .nav-link{
    color:#f8fafc !important;
}

.navbar-nav .nav-link:hover{
    color:#4f46e5 !important;
}

.dark-mode .navbar-nav .nav-link:hover{
    color:#60a5fa !important;
}

.navbar-nav .nav-link::after{
    content:'';
    position:absolute;
    left:0;
    bottom:-6px;
    width:0;
    height:3px;
    border-radius:20px;
    background:linear-gradient(
        135deg,
        #4f46e5,
        #06b6d4
    );
    transition:.3s;
}

.navbar-nav .nav-link:hover::after{
    width:100%;
}

/* =========================
   MOBILE MENU
========================= */

.navbar-toggler{
    border:none;
    box-shadow:none!important;
}

.dark-mode .navbar-toggler{
    filter:invert(1);
}

/* =========================
   HERO
========================= */

.hero{
    min-height:100vh;
    display:flex;
    align-items:center;
    padding-top:120px;
}

.hero-title{
    font-size:4rem;
    font-weight:900;
    line-height:1.1;
}

.gradient-text{
    background:linear-gradient(
        135deg,
        #4f46e5,
        #06b6d4
    );
    -webkit-background-clip:text;
    -webkit-text-fill-color:transparent;
}

.hero p{
    font-size:1.15rem;
    opacity:.9;
}

/* =========================
   GLASSMORPHISM
========================= */

.glass{
    background:var(--glass);
    backdrop-filter:blur(20px);
    border:1px solid var(--border);
    box-shadow:var(--shadow);
    border-radius:25px;
}

.card-hover{
    transition:.4s ease;
}

.card-hover:hover{
    transform:translateY(-12px);
    box-shadow:0 20px 40px rgba(0,0,0,.15);
}

/* =========================
   SECTIONS
========================= */

.section{
    padding:100px 0;
}

.section-title{
    font-size:2.7rem;
    font-weight:800;
}

/* =========================
   BUTTONS
========================= */

.btn-gradient{
    background:linear-gradient(
        135deg,
        #4f46e5,
        #06b6d4
    );
    color:white;
    border:none;
    padding:12px 30px;
    border-radius:50px;
    font-weight:600;
    transition:.3s;
}

.btn-gradient:hover{
    color:white;
    transform:translateY(-3px);
    box-shadow:0 10px 30px rgba(79,70,229,.4);
}

/* =========================
   THEME BUTTON
========================= */

.theme-btn{
    width:45px;
    height:45px;
    border-radius:50%;
    border:none;
    color:#0f172a;
}

.dark-mode .theme-btn{
    color:#ffffff;
}

/* =========================
   PROJECT IMAGES
========================= */

.project-img{
    width:100%;
    border-radius:20px;
    transition:.4s;
}

.project-img:hover{
    transform:scale(1.03);
}

/* =========================
   SCROLL TO TOP
========================= */

#scrollTop{
    position:fixed;
    right:20px;
    bottom:20px;
    width:55px;
    height:55px;
    border:none;
    border-radius:50%;
    display:none;
    z-index:999;
    color:white;
    background:linear-gradient(
        135deg,
        #4f46e5,
        #06b6d4
    );
    box-shadow:0 8px 25px rgba(79,70,229,.35);
}

#scrollTop:hover{
    transform:translateY(-3px);
}

/* =========================
   FOOTER
========================= */

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

/* =========================
   MOBILE
========================= */

@media(max-width:768px){

    .hero{
        text-align:center;
        padding-top:150px;
    }

    .hero-title{
        font-size:2.6rem;
    }

    .navbar{
        width:95%;
    }

    .navbar-nav{
        margin-top:15px;
        text-align:center;
    }

    .navbar-nav .nav-link{
        margin:10px 0;
    }

}


.nav-link.active{
    color:#4f46e5 !important;
}

.dark-mode .nav-link.active{
    color:#60a5fa !important;
}

.nav-link.active::after{
    width:100%;
}



/* ==========================
   PROJECT SLIDER
========================== */

.projects-slider{
    display:flex;
    gap:25px;
    overflow-x:auto;
    scroll-behavior:smooth;
    scrollbar-width:none;
    padding-bottom:15px;
}

.projects-slider::-webkit-scrollbar{
    display:none;
}

.project-card{
    min-width:350px;
    max-width:350px;
    flex-shrink:0;
    overflow:hidden;
    border-radius:25px;
    transition:.4s ease;
}

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

.project-card img{
    width:100%;
    height:220px;
    object-fit:cover;
}

.slider-btn{
    width:50px;
    height:50px;
    border:none;
    border-radius:50%;
    color:white;
    background:linear-gradient(
        135deg,
        #4f46e5,
        #06b6d4
    );
    transition:.3s;
}

.slider-btn:hover{
    transform:scale(1.1);
}

.dark-mode .slider-btn{
    box-shadow:0 0 20px rgba(96,165,250,.3);
}

@media(max-width:768px){

    .project-card{
        min-width:280px;
        max-width:280px;
    }

}



/* ==========================
   MODERN PROJECT MODAL
========================== */

.project-modal{
    background:rgba(255,255,255,.9);
    backdrop-filter:blur(30px);
    border:none;
    border-radius:30px;
    overflow:hidden;
}

.dark-mode .project-modal{
    background:rgba(15,23,42,.95);
    color:#fff;
}

.modal-content{
    animation:modalZoom .4s ease;
}

@keyframes modalZoom{

    from{
        opacity:0;
        transform:scale(.9);
    }

    to{
        opacity:1;
        transform:scale(1);
    }

}

.modal-project-img{
    height:600px;
    object-fit:cover;
    border-radius:20px;
}

.tech-badge{
    padding:10px 18px;
    border-radius:50px;
    background:linear-gradient(
        135deg,
        #4f46e5,
        #06b6d4
    );
    color:white;
    font-size:14px;
    font-weight:600;
}

.carousel-control-prev,
.carousel-control-next{
    width:60px;
}

.carousel-control-prev-icon,
.carousel-control-next-icon{
    background-color:rgba(0,0,0,.5);
    border-radius:50%;
    padding:20px;
}

.dark-mode .btn-close{
    filter:invert(1);
}

@media(max-width:768px){

    .modal-project-img{
        height:250px;
    }

}



/* ==========================
   CONTACT MODAL
========================== */

.contact-modal{
    border:none;
    border-radius:30px;
    overflow:hidden;
    backdrop-filter:blur(25px);
    background:rgba(255,255,255,.9);
    box-shadow:0 25px 60px rgba(0,0,0,.15);
}

.dark-mode .contact-modal{
    background:rgba(15,23,42,.95);
    color:#fff;
}

.contact-modal .modal-content{
    border:none;
}

.contact-modal .modal-body{
    padding:35px;
}

/* Modal Animation */

.modal.fade .modal-dialog{
    transform:scale(.9) translateY(30px);
    transition:.3s ease;
}

.modal.show .modal-dialog{
    transform:scale(1) translateY(0);
}

/* Contact Cards */

.contact-info-card{
    padding:25px;
    border-radius:20px;
    background:rgba(255,255,255,.15);
    backdrop-filter:blur(15px);
    border:1px solid rgba(255,255,255,.2);
}

.dark-mode .contact-info-card{
    background:rgba(255,255,255,.05);
}

.contact-icon{
    width:60px;
    height:60px;
    border-radius:50%;
    display:flex;
    align-items:center;
    justify-content:center;
    margin-bottom:15px;
    font-size:22px;
    color:white;
    background:linear-gradient(
        135deg,
        #4f46e5,
        #06b6d4
    );
}

/* Inputs */

.modern-input{
    border:none;
    border-radius:15px;
    padding:14px 18px;
    background:rgba(255,255,255,.15);
    backdrop-filter:blur(15px);
}

.modern-input:focus{
    box-shadow:0 0 0 3px rgba(79,70,229,.2);
    border:none;
}

.dark-mode .modern-input{
    background:rgba(255,255,255,.05);
    color:#fff;
}

.dark-mode .modern-input::placeholder{
    color:#b0b0b0;
}

.dark-mode .btn-close{
    filter:invert(1);
}