*{
    margin:0;
    padding:0;
    font-family:'Poppins',sans-serif;
    box-sizing:border-box;
}
html{
    scroll-behavior: smooth;
}
:root{
    /* grows the side margin on big screens so content caps out near 1300px */
    --gutter: max(6%, calc((100vw - 1300px) / 2));
    --section-y: clamp(50px, 7vw, 80px);
    /* dark is the default theme */
    --bg:#080808;
    --surface:#262626;
    --text:#fff;
    --muted:#ababab;
    --line:var(--line);
    --nav-bg:rgba(8,8,8,0.85);
    --accent:#ff004f;
    --accent-soft:var(--accent-soft);
}
[data-theme="light"]{
    --bg:#f4f4f7;
    --surface:#ffffff;
    --text:#14141a;
    --muted:#55555f;
    --line:rgba(0,0,0,0.10);
    --nav-bg:rgba(244,244,247,0.88);
    --accent-soft:var(--accent-soft);
}
body{
    background:var(--bg);
    color:var(--text);
    line-height:1.6;
    overflow-x:hidden;
    transition:background 0.35s,color 0.35s;
}
img{
    max-width:100%;
}
#header{
    width:100%;
    min-height:90vh;
    display:flex;
    flex-direction:column;
    justify-content:center;
    /* background-image:url(Portfolio-Image/gowtham-new\ photo3.png); */
    background-size:cover;
    background-position: center;
}
.container{
    padding:10px var(--gutter);
}
section, #about, #services, #portfolio, #achievements, #contact{
    scroll-margin-top:90px;
}
nav{
    display:flex;
    align-items:center;
    justify-content:space-between;
    flex-wrap:wrap;
    position:fixed;
    top:0;
    left:0;
    width:100%;
    padding:16px var(--gutter);
    background:var(--nav-bg);
    backdrop-filter:blur(10px);
    border-bottom:1px solid var(--line);
    z-index:5;
}
.logo{
    width:100px;
}
nav ul li{
    display:inline-block;
    list-style:none;
    margin:10px 20px;
}
nav ul li a{
    color:var(--text);
    text-decoration:none;
    font-size:18px;
    position:relative;
}
nav ul li a::after{
    content:'';
    width:0%;
    height:3px;
    background: #ff004f;
    position:absolute;
    left:0;
    bottom:-6px;
    transition:0.5s;
}
nav ul li a:hover::after{
    width:100%;
}
@keyframes fade-up{
    from{opacity:0;transform:translateY(24px);}
    to{opacity:1;transform:none;}
}
@keyframes float-soft{
    0%,100%{transform:translateY(0);}
    50%{transform:translateY(-14px);}
}
.hero-row{
    display:flex;
    align-items:center;
    justify-content:space-between;
    gap:60px;
    padding-top:70px;
}
.hero-eyebrow{
    display:inline-block;
    color:var(--accent-soft);
    font-size:14px;
    font-weight:500;
    letter-spacing:1.6px;
    text-transform:uppercase;
    padding:7px 16px;
    border:1px solid var(--line);
    border-radius:20px;
    margin-bottom:22px;
}
.hero-role{
    font-size:clamp(18px, 2.4vw, 26px);
    color:var(--text);
    margin-top:14px;
}
.rotate-word{
    color:#ff004f;
    border-bottom:2px solid #ff004f;
    padding-bottom:2px;
    display:inline-block;
    transition:opacity 0.3s,transform 0.3s;
}
.rotate-word.swapping{
    opacity:0;
    transform:translateY(-8px);
}
.hero-sub{
    margin-top:20px;
    max-width:58ch;
    font-size:clamp(15px, 1.5vw, 17px);
    color:var(--muted);
}
.hero-stats{
    display:flex;
    flex-wrap:wrap;
    gap:14px 40px;
    margin-top:42px;
    padding-top:28px;
    border-top:1px solid var(--line);
}
.hero-stats strong{
    display:block;
    font-size:26px;
    font-weight:600;
    color:#ff004f;
    line-height:1.2;
}
.hero-stats span{
    font-size:13px;
    color:var(--muted);
}
.header-text{
    flex:1 1 55%;
    min-width:280px;
    margin-top:0;
    font-size:clamp(16px, 2vw, 22px);
    color:var(--muted);
}
.hero-actions{
    display:flex;
    flex-wrap:wrap;
    gap:18px;
    margin-top:36px;
}
.hero-actions .btn{
    margin:0;
    font-size:16px;
    padding:13px 34px;
}
.hero-img{
    flex:0 1 38%;
    min-width:260px;
    max-width:400px;
    position:relative;
}
.hero-img::before{
    content:'';
    position:absolute;
    inset:-14px;
    border-radius:50%;
    border:2px solid #ff004f;
    opacity:0.5;
}
.hero-img::after{
    content:'';
    position:absolute;
    inset:-16%;
    border-radius:50%;
    background:radial-gradient(circle, rgba(255,0,79,0.28), transparent 68%);
    filter:blur(26px);
    z-index:-1;
}
.hero-img img{
    animation:float-soft 7s ease-in-out infinite;
}
.hero-img img{
    width:100%;
    aspect-ratio:1 / 1;
    object-fit:cover;
    object-position:center 18%;
    border-radius:50%;
    display:block;
    background:var(--surface);
}
.header-text h1{
    font-size:clamp(34px, 5.4vw, 64px);
    line-height:1.15;
    margin-top:16px;
    color:var(--text);
}
.header-text h1  span{
    color:#ff004f;

}


/*---About Section----*/
#about{
    padding:var(--section-y) 0;
    color:var(--muted);
}
#about p{
    max-width:78ch;
    font-size:clamp(15px, 1.5vw, 17px);
}
.row{
    display:flex;
    justify-content:space-between;
    align-items:flex-start;
    flex-wrap:wrap;
    gap:40px;
}
.about-col-2{
    flex-basis:100%;
}
.sub-title{
    font-size:clamp(30px, 4.6vw, 48px);
    line-height:1.2;
    font-weight:600;
    color:var(--text);
    position:relative;
    padding-bottom:18px;
}
.sub-title::after{
    content:'';
    position:absolute;
    left:0;
    bottom:0;
    width:70px;
    height:4px;
    border-radius:2px;
    background:#ff004f;
}
.tab-titles{
    display:flex;
    flex-wrap:wrap;
    gap:0 40px;
    margin:30px 0 40px;
}
.tab-links{
    margin-right:0;
    font-size:18px;
    font-weight:500;
    cursor:pointer;
    position:relative;
}
.tab-links::after{
    content:'';
    width:0;
    height:3px;
    background:#ff004f;
    position:absolute;
    left:0;
    bottom:-8px;
    transition:0.5s;

}
.tab-links.active-link::after{
    width:100%;
}
.tab-contents ul{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(280px,1fr));
    gap:22px 40px;
}
.tab-contents ul li{
    list-style:none;
    margin:0;
    padding:2px 0 2px 18px;
    border-left:2px solid var(--accent-soft);
    color:var(--muted);
    font-size:15px;
}
.tab-contents ul li strong{
    display:block;
    font-size:16px;
    font-weight:500;
    color:var(--text);
    margin:2px 0 2px;
}
.li-location{
    display:flex;
    align-items:center;
    gap:8px;
    margin-top:8px;
    font-size:13px;
    font-style:normal;
    color:var(--muted);
}
.li-location i{
    color:var(--accent-soft);
    font-size:12px;
}
.tab-contents ul li span{
    color:var(--accent-soft);
    font-size:14px;
    font-weight:500;
    letter-spacing:0.3px;
}
.tab-contents{
    display:none;
}
.tab-contents.active-tab{
    display:block;
}

/*-------services ----*/
#services{
    padding:var(--section-y) 0;
}
#achievements{
    padding:var(--section-y) 0;
}
.services-list{
    display:grid;
    grid-template-columns: repeat(auto-fit,minmax(280px,1fr));
    grid-gap:30px;
    margin-top:50px;
}
.services-list div{
    background:var(--surface);
    padding:36px 30px;
    font-size:14px;
    font-weight:300;
    border-radius:12px;
    border:1px solid var(--line);
    display:flex;
    flex-direction:column;
    transition: background 0.5s,transform 0.5s;
}
.services-list div i{
    font-size:40px;
    margin-bottom:22px;
    color:#ff004f;
    transition:color 0.5s;
}
.services-list div:hover i{
    color:#fff;
}
.services-list div h2{
    font-size:clamp(18px, 2vw, 21px);
    line-height:1.35;
    font-weight:500;
    margin-bottom:12px;
}
.services-list div a{
    text-decoration:none;
    color:var(--text);
    font-size:13px;
    margin-top:auto;
    padding-top:20px;
    align-self:flex-start;
    border-bottom:1px solid #ff004f;
    transition:border-color 0.5s;
}
.services-list div:hover a{
    border-bottom-color:#fff;
}
.services-list div:hover{
    background-color:#ff004f;
    transform:translateY(-10px);
}
.services-list div:hover h2,
.services-list div:hover p,
.services-list div:hover a{
    color:#fff;
}

/*----portfolio---*/
#portfolio{
    padding:var(--section-y) 0;
}
.work-list{
    display:grid;
    grid-template-columns: repeat(auto-fit,minmax(280px,1fr));
    grid-gap:30px;
    margin-top:50px;
}
.work{
    border-radius: 10px;
    position:relative;
    overflow:hidden;
}
.work img{
    width:100%;
    aspect-ratio:4 / 3;
    object-fit:cover;
    border-radius:10px;
    display:block;
    transition:transform 0.5s;
}
.layer{
    width:100%;
    height:0;
    background: linear-gradient(rgba(0,0,0,0.6),#ff004f);
    border-radius:10px;
    position:absolute;
    left:0;
    bottom:0;
    overflow:hidden;
    display:flex;
    align-items:center;
    justify-content:center;
    flex-direction:column;
    padding:0 40px;
    text-align:center;
    font-size:14px;
    transition: height 0.5s;
}
.layer h3{
    font-size:20px;
    font-weight:500;
    margin-bottom:14px;
}
.layer p{
    line-height:1.5;
}
.layer a{
    margin-top:20px;
    color:#ff004f;
    text-decoration:none;
    font-size:18px;
    line-height:60px;
    background:#fff;
    width:60px;
    height:60px;
    border-radius:50%;
    text-align:center;
}
.work:hover img{
    transform:scale(1.1);
}
.work:hover .layer{
    height:100%;
}
.btn{
    display:block;
    margin:50px auto 0;
    width:fit-content;
    border:1px solid #ff004f;
    padding:14px 50px;
    border-radius:6px;
    text-decoration:none;
    color:var(--text);
    transition:background 0.5s,color 0.5s;
}
.btn:hover{
    background:#ff004f;
    color:#fff;
}

/*----contact--*/
#contact{
    padding:var(--section-y) 0 0;
}
.contact-left{
    flex-basis: 35%;
    flex-grow:1;
    min-width:280px;
}
.contact-right{
    flex-basis: 58%;
    flex-grow:1;
    min-width:300px;
}
.contact-left p{
    margin-top:24px;
    display:flex;
    align-items:center;
    word-break:break-word;
}
.contact-left p i{
    color:#ff004f;
    margin-right:15px;
    font-size:25px;
}
.social-icons{
    margin-top:30px;
}
.social-icons a{
    text-decoration:none;
    font-size:28px;
    margin-top:0;
    margin-right:15px;
    color:var(--muted);
    display:inline-block;
    transition:transform 0.5s;
}
.social-icons a:hover{
    color:#ff004f;
    transform:translateY(-5px);
}
.btn.btn2{
    display:inline-block;
    background:#ff004f;
}
.contact-right form{
    width:100%;
}
form input,form textarea{
    width:100%;
    border:0;
    outline:none;
    background:var(--surface);
    padding:15px;
    margin:15px 0;
    color:var(--text);
    border:1px solid var(--line);
    font-size:18px;
    border-radius:6px;

}
form .btn2{
    padding:14px 60px;
    font-size:18px;
    margin-top:20px;
    cursor:pointer;
}
.copyright{
    width:100%;
    text-align:center;
    padding:25px var(--gutter);
    background:var(--surface);
    font-weight:300;
    font-size:14px;
    margin-top:var(--section-y);
}
.copyright i{
    color:#ff004f;
}



#msg{
    color:#61b752;
    font-size:14px;
    margin-top:14px;
    display:block;
    min-height:20px;
}
#msg.msg-error{
    color:#ff004f;
}
#msg a{
    color:var(--text);
    border-bottom:1px solid #ff004f;
    text-decoration:none;
}
form button[disabled]{
    opacity:0.6;
    cursor:not-allowed;
}
/*----shared detail pages (project + experience)----*/
.detail-page{
    padding:clamp(100px, 12vw, 130px) var(--gutter) var(--section-y);
}
.detail-back{
    display:inline-flex;
    align-items:center;
    gap:10px;
    color:var(--muted);
    text-decoration:none;
    font-size:15px;
    margin-bottom:34px;
    transition:color 0.4s;
}
.detail-back:hover{
    color:#ff004f;
}
.detail-eyebrow{
    color:var(--accent-soft);
    font-size:14px;
    font-weight:500;
    letter-spacing:1.5px;
    text-transform:uppercase;
    margin-bottom:12px;
}
.detail-page h1{
    font-size:clamp(28px, 4.2vw, 46px);
    line-height:1.2;
    font-weight:600;
    color:var(--text);
    position:relative;
    padding-bottom:20px;
    margin-bottom:28px;
}
.detail-page h1::after{
    content:'';
    position:absolute;
    left:0;
    bottom:0;
    width:70px;
    height:4px;
    border-radius:2px;
    background:#ff004f;
}
.detail-lead{
    color:var(--muted);
    font-size:clamp(15px, 1.5vw, 18px);
    line-height:1.75;
    max-width:105ch;
}
.detail-cover{
    width:100%;
    aspect-ratio:21 / 7;
    object-fit:cover;
    border-radius:14px;
    margin:36px 0 10px;
    border:1px solid var(--line);
}
.detail-grid{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(340px,1fr));
    gap:30px;
    margin-top:44px;
}
.detail-card{
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:12px;
    padding:32px 30px;
}
.detail-card h2{
    font-size:20px;
    font-weight:500;
    color:var(--text);
    margin-bottom:18px;
}
.detail-card ul{
    list-style:none;
}
.detail-card li{
    color:var(--muted);
    font-size:15px;
    padding-left:18px;
    margin-bottom:14px;
    border-left:2px solid var(--accent-soft);
}
.detail-card li:last-child{
    margin-bottom:0;
}
.detail-meta{
    display:grid;
    gap:20px;
}
.detail-meta div span{
    display:block;
    color:var(--accent-soft);
    font-size:13px;
    font-weight:500;
    letter-spacing:0.5px;
    margin-bottom:4px;
}
.detail-meta div p{
    color:var(--text);
    font-size:15px;
}
.tag-list{
    display:flex;
    flex-wrap:wrap;
    gap:10px;
}
.tag-list span{
    background:rgba(255,0,79,0.12);
    border:1px solid rgba(255,0,79,0.45);
    color:var(--text);
    font-size:13px;
    padding:7px 14px;
    border-radius:20px;
}
.detail-actions{
    margin-top:44px;
}
.detail-actions .btn{
    margin:0;
    display:inline-block;
}
.detail-empty{
    text-align:center;
    padding:60px 0;
    color:var(--muted);
}

/*----certificates----*/
#certificates{
    padding:var(--section-y) 0;
}
.cert-list{
    display:grid;
    grid-template-columns:repeat(auto-fit,minmax(330px,1fr));
    gap:26px;
    margin-top:50px;
}
.cert-card{
    display:flex;
    flex-direction:column;
    background:var(--surface);
    border:1px solid var(--line);
    border-radius:12px;
    overflow:hidden;
    text-decoration:none;
    transition:transform 0.5s,border-color 0.5s;
}
.cert-card:hover{
    transform:translateY(-8px);
    border-color:#ff004f;
}
.cert-card img{
    width:100%;
    aspect-ratio:16 / 10;
    object-fit:cover;
    object-position:top center;
    display:block;
    background:var(--surface);
    border-bottom:1px solid var(--line);
}
.cert-body{
    display:flex;
    flex-direction:column;
    flex:1;
    padding:26px 24px;
}
.cert-card h2{
    font-size:18px;
    line-height:1.4;
    font-weight:500;
    color:var(--text);
    margin-bottom:8px;
}
.cert-meta{
    color:var(--accent-soft);
    font-size:13px;
    font-weight:500;
    letter-spacing:0.4px;
    margin-bottom:14px;
}
.cert-note{
    color:var(--muted);
    font-size:14px;
    font-weight:300;
}
.cert-link{
    margin-top:auto;
    padding-top:20px;
    align-self:flex-start;
    color:var(--text);
    font-size:13px;
    border-bottom:1px solid #ff004f;
    transition:color 0.4s;
}
.cert-card:hover .cert-link{
    color:#ff004f;
}

/*----entrance animation----*/
.hero-eyebrow,
.header-text h1,
.hero-role,
.hero-sub,
.hero-actions,
.hero-stats,
.hero-img{
    animation:fade-up 0.7s cubic-bezier(0.22,0.8,0.3,1) backwards;
}
.hero-eyebrow{animation-delay:0.05s;}
.header-text h1{animation-delay:0.15s;}
.hero-role{animation-delay:0.25s;}
.hero-sub{animation-delay:0.35s;}
.hero-actions{animation-delay:0.45s;}
.hero-stats{animation-delay:0.55s;}
.hero-img{animation-delay:0.2s;}

@media (prefers-reduced-motion: reduce){
    *,*::before,*::after{
        animation:none !important;
        transition-duration:0.01ms !important;
        scroll-behavior:auto !important;
    }
}

/*----theme toggle----*/
.theme-toggle{
    background:var(--surface);
    border:1px solid var(--line);
    color:var(--text);
    width:42px;
    height:42px;
    border-radius:50%;
    font-size:16px;
    cursor:pointer;
    display:grid;
    place-items:center;
    transition:background 0.4s,color 0.4s,transform 0.4s;
}
.theme-toggle:hover{
    background:#ff004f;
    color:#fff;
    transform:translateY(-3px);
}
.theme-toggle svg{
    width:19px;
    height:19px;
    fill:none;
    stroke:currentColor;
    stroke-width:1.9;
    stroke-linecap:round;
    display:block;
}
.theme-toggle .icon-sun circle{
    fill:currentColor;
    stroke:none;
}
.theme-toggle .icon-moon path{
    fill:currentColor;
    stroke:none;
}
/* dark theme shows the sun (switch to light); light theme shows the moon */
.theme-toggle .icon-moon{
    display:none;
}
[data-theme="light"] .theme-toggle .icon-sun{
    display:none;
}
[data-theme="light"] .theme-toggle .icon-moon{
    display:block;
}
.theme-toggle:hover svg{
    transform:rotate(25deg);
}
.theme-toggle svg{
    transition:transform 0.4s;
}
.theme-toggle.floating{
    position:fixed;
    top:24px;
    right:var(--gutter);
    z-index:6;
}

/*==================== responsive ====================*/
nav .fa-regular,nav .fa-solid{
    display:none;
}

/*---- large desktop: keep the hero from stretching ----*/
@media only screen and (min-width:1600px){
    .hero-img{
        max-width:440px;
    }
    .header-text{
        max-width:820px;
    }
}

/*---- small laptop ----*/
@media only screen and (max-width:1200px){
    .hero-row{
        gap:44px;
    }
    .hero-img{
        max-width:340px;
    }
    .detail-grid{
        grid-template-columns:repeat(auto-fit,minmax(300px,1fr));
    }
}

/*---- tablet: nav collapses to the slide-in menu here, not at phone width ----*/
@media only screen and (max-width:900px){
    nav .fa-regular,nav .fa-solid{
        display:block;
        font-size:25px;
    }
    nav ul{
        background:#ff004f;
        position:fixed;
        top:0;
        right:-200px;
        width:200px;
        height:100vh;
        padding-top:50px;
        z-index:6;
        transition:right 0.5s;
    }
    nav ul li{
        display:block;
        margin:25px;
    }
    nav ul li a{
        color:#fff;
    }
    nav ul .fa-regular,nav ul .fa-solid{
        position:absolute;
        top:25px;
        left:25px;
        cursor:pointer;
    }
    .hero-row{
        flex-direction:column-reverse;
        align-items:center;
        text-align:center;
        gap:36px;
        padding-top:100px;
    }
    .header-text{
        flex:1 1 100%;
    }
    .hero-img{
        max-width:270px;
    }
    .hero-actions{
        justify-content:center;
    }
    .services-list,.work-list{
        grid-template-columns:repeat(auto-fit,minmax(260px,1fr));
        grid-gap:24px;
    }
    .detail-cover{
        aspect-ratio:16 / 7;
    }
    .row{
        gap:30px;
    }
}

/*---- phone ----*/
@media only screen and (max-width:600px){
    :root{
        --gutter:6%;
    }
    #header{
        min-height:auto;
        padding-bottom:50px;
    }
    .hero-row{
        gap:30px;
        padding-top:110px;
    }
    .hero-img{
        max-width:210px;
    }
    .hero-actions{
        gap:14px;
    }
    .hero-stats{
        justify-content:center;
        gap:12px 26px;
        margin-top:32px;
        padding-top:22px;
    }
    .hero-stats strong{
        font-size:22px;
    }
    .hero-eyebrow{
        font-size:12px;
        letter-spacing:1.2px;
        margin-bottom:16px;
    }
    .hero-actions .btn{
        padding:12px 26px;
        font-size:15px;
    }
    .about-col-2{
        flex-basis:100%;
        font-size:14px;
    }
    .tab-titles{
        gap:0 26px;
    }
    .tab-links{
        font-size:16px;
    }
    .tab-contents ul{
        grid-template-columns:1fr;
        gap:16px;
    }
    .services-list,.work-list,.cert-list{
        grid-template-columns:1fr;
    }
    .services-list div{
        padding:30px 24px;
    }
    .layer{
        padding:0 24px;
    }
    .contact-left,.contact-right{
        flex-basis:100%;
    }
    form input,form textarea{
        font-size:16px;
        padding:13px;
    }
    .copyright{
        font-size:14px;
    }
    .detail-cover{
        aspect-ratio:4 / 3;
    }
    .detail-card{
        padding:26px 22px;
    }
    .detail-grid{
        grid-template-columns:1fr;
        gap:22px;
    }
    .detail-back{
        margin-bottom:26px;
    }
}

/*---- small phone ----*/
@media only screen and (max-width:400px){
    :root{
        --gutter:5%;
    }
    .theme-toggle{
        width:38px;
        height:38px;
        font-size:14px;
    }
    .hero-img{
        max-width:175px;
    }
    .hero-actions{
        flex-direction:column;
        align-items:stretch;
    }
    .hero-actions .btn{
        text-align:center;
    }
    .btn{
        padding:13px 30px;
    }
    .tag-list span{
        font-size:12px;
        padding:6px 12px;
    }
    .social-icons a{
        font-size:24px;
        margin-right:10px;
    }
}

/*---- short landscape phones: don't force a full-height hero ----*/
@media only screen and (max-height:520px) and (orientation:landscape){
    #header{
        min-height:auto;
        padding-bottom:40px;
    }
}