/* ==========================================================
   SUMAN SAHU PORTFOLIO
   PHASE 1 - PART 1
   ========================================================== */
/* ===========================
   Google Font
=========================== */
:root {
    --bg: #09090B;
    --surface: #18181B;
    --surface-light: #27272A;
    --text: #FAFAFA;
    --muted: #A1A1AA;
    --primary: #3B82F6;
    --primary-light: #60A5FA;
    --secondary: #8B5CF6;
    --border: rgba(255, 255, 255, .08);
    --shadow:
        0 10px 40px rgba(0, 0, 0, .35);
    --radius: 18px;
    --transition: .35s ease;
}
/* ===========================
   Reset
=========================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
html {
    scroll-behavior: smooth;
}
body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    overflow-x: hidden;
    line-height: 1.7;
    position: relative;
}
/* ===========================
   Animated Background
=========================== */
body::before {
    content: "";
    position: fixed;
    inset: 0;
    background:
        radial-gradient(circle at top left,
            rgba(59, 130, 246, .22),
            transparent 45%),
        radial-gradient(circle at bottom right,
            rgba(139, 92, 246, .20),
            transparent 45%),
        radial-gradient(circle at center,
            rgba(255, 255, 255, .02),
            transparent 60%);
    z-index: -2;
    animation: gradientMove 18s ease infinite;
}
@keyframes gradientMove {
    0% {
        transform: scale(1);
    }
    50% {
        transform: scale(1.15);
    }
    100% {
        transform: scale(1);
    }
}
/* ===========================
   Particles
=========================== */
#particles {
    position: fixed;
    inset: 0;
    z-index: -1;
    opacity: .35;
    background-image:
        radial-gradient(circle, rgba(255, 255, 255, .25) 1px, transparent 1px);
    background-size: 60px 60px;
}
/* ===========================
   Container
=========================== */
.container {
    width: min(1180px, 90%);
    margin: auto;
}
/* ===========================
   Typography
=========================== */
h1 {
    font-size: 4.8rem;
    line-height: 1.05;
    font-weight: 800;
}
h2 {
    font-size: 2.5rem;
    margin-bottom: 30px;
    font-weight: 700;
}
h3 {
    font-size: 1.4rem;
    margin-bottom: 12px;
}
h4 {
    color: var(--primary-light);
    margin-bottom: 18px;
}
p {
    color: var(--muted);
    font-size: 1.08rem;
}
/* ===========================
   Links
=========================== */
a {
    text-decoration: none;
    color: inherit;
}
/* ===========================
   Navbar
=========================== */
header {
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
}
.navbar {
    width: min(1200px, 92%);
    margin: 20px auto;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 18px 30px;
    border-radius: 999px;
    backdrop-filter: blur(20px);
    background: rgba(24, 24, 27, .45);
    border: 1px solid rgba(255, 255, 255, .08);
    transition: var(--transition);
}
.logo {
    font-weight: 800;
    letter-spacing: 2px;
}
.nav-links {
    display: flex;
    gap: 35px;
    list-style: none;
}
.nav-links a {
    color: var(--muted);
    transition: .25s;
    font-weight: 500;
}
.nav-links a:hover {
    color: var(--primary);
}
/* ===========================
   Hero
=========================== */
.hero {
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    text-align: center;
    padding: 120px 20px 60px;
}
.hero-content {
    max-width: 920px;
}
.hero span {
    color: var(--primary);
}
.hero h2 {
    margin-top: 22px;
    margin-bottom: 28px;
    font-size: 1.5rem;
    color: var(--muted);
    font-weight: 500;
}
.hero p {
    font-size: 1.25rem;
    max-width: 760px;
    margin: auto;
}
/* ===========================
   Badge
=========================== */
.badge {
    display: inline-block;
    margin-bottom: 35px;
    padding: 12px 22px;
    border-radius: 999px;
    background: rgba(59, 130, 246, .12);
    border: 1px solid rgba(59, 130, 246, .25);
    color: var(--primary-light);
    font-size: .92rem;
    font-weight: 600;
}
/* ===========================
   Buttons
=========================== */
.buttons {
    display: flex;
    justify-content: center;
    gap: 18px;
    flex-wrap: wrap;
    margin-top: 45px;
}
.primary,
.secondary {
    padding: 15px 32px;
    border-radius: 999px;
    transition: var(--transition);
    font-weight: 600;
}
.primary {
    background: linear-gradient(135deg,
            var(--primary),
            var(--secondary));
    color: white;
    box-shadow: 0 12px 30px rgba(59, 130, 246, .25);
}
.primary:hover {
    transform: translateY(-4px);
    box-shadow: 0 20px 45px rgba(59, 130, 246, .35);
}
.secondary {
    border: 1px solid rgba(255, 255, 255, .1);
    background: rgba(255, 255, 255, .03);
    backdrop-filter: blur(10px);
}
.secondary:hover {
    background: rgba(255, 255, 255, .08);
    transform: translateY(-4px);
}
/* ===========================
   Scroll Indicator
=========================== */
.scroll {
    margin-top: 70px;
    color: var(--muted);
    animation: bounce 2s infinite;
}
@keyframes bounce {
    0% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(12px);
    }
    100% {
        transform: translateY(0);
    }
}
/* ===========================
   Generic Sections
=========================== */
section {
    padding: 110px 0;
}
section h2 {
    text-align: center;
}
/* ===========================
   Responsive
=========================== */
@media(max-width:900px) {
    h1 {
        font-size: 3.3rem;
    }
    .navbar {
        flex-direction: column;
        gap: 20px;
        border-radius: 28px;
    }
    .nav-links {
        flex-wrap: wrap;
        justify-content: center;
        gap: 18px;
    }
}
@media(max-width:600px) {
    h1 {
        font-size: 2.5rem;
    }
    h2 {
        font-size: 2rem;
    }
    .hero p {
        font-size: 1.05rem;
    }
    .buttons {
        flex-direction: column;
        align-items: center;
    }
    .primary,
    .secondary {
        width: 240px;
        text-align: center;
    }
}
/* ==========================================================
   PHASE 1 - PART 2
   Cards • About • Experience • Projects • Skills • Contact
   ==========================================================*/
/* ==========================
   About Section
========================== */
#about{
    position:relative;
}
#about .container{
    max-width:900px;
    text-align:center;
}
#about p{
    margin:20px auto;
    font-size:1.12rem;
    line-height:1.9;
}
/* ==========================
   Generic Glass Card
========================== */
.card{
    position:relative;
    background:rgba(255,255,255,.03);
    border:1px solid rgba(255,255,255,.08);
    border-radius:22px;
    padding:38px;
    backdrop-filter:blur(18px);
    transition:.35s ease;
    overflow:hidden;
    box-shadow:
        0 15px 45px rgba(0,0,0,.20);
}
.card::before{
    content:"";
    position:absolute;
    inset:0;
    background:
        linear-gradient(
        135deg,
        rgba(59,130,246,.12),
        transparent 40%);
    opacity:0;
    transition:.4s;
}
.card:hover{
    transform:translateY(-10px);
    border-color:rgba(59,130,246,.35);
    box-shadow:
        0 25px 60px rgba(0,0,0,.35);
}
.card:hover::before{
    opacity:1;
}
.card h3{
    color:white;
}
.card h4{
    color:var(--primary);
}
.card p{
    margin-top:10px;
}
/* ==========================
   Experience
========================== */
#experience{
    position:relative;
}
#experience .container{
    display:flex;
    flex-direction:column;
    gap:35px;
}
#experience .card{
    padding-left:45px;
}
#experience .card::after{
    content:"";
    position:absolute;
    left:20px;
    top:45px;
    width:12px;
    height:12px;
    border-radius:50%;
    background:var(--primary);
    box-shadow:
        0 0 20px var(--primary);
}
/* ==========================
   Projects
========================== */
.project-grid{
    display:grid;
    grid-template-columns:
        repeat(auto-fit,minmax(320px,1fr));
    gap:28px;
    margin-top:60px;
}
.project-grid .card{
    min-height:280px;
}
.project-grid h3{
    margin-bottom:20px;
}
.project-grid p{
    line-height:1.8;
}
/* ==========================
   Skills
========================== */
.skills{
    margin-top:50px;
    display:flex;
    flex-wrap:wrap;
    justify-content:center;
    gap:18px;
}
.skills span{
    padding:15px 24px;
    border-radius:999px;
    background:
        rgba(59,130,246,.08);
    color:white;
    border:1px solid rgba(59,130,246,.22);
    transition:.3s;
    cursor:default;
    font-weight:500;
}
.skills span:hover{
    transform:translateY(-5px);
    background:
        linear-gradient(
            135deg,
            var(--primary),
            var(--secondary)
        );
}
/* ==========================
   Contact
========================== */
#contact{
    text-align:center;
}
#contact p{
    max-width:650px;
    margin:20px auto 45px;
}
/* ==========================
   Footer
========================== */
footer{
    text-align:center;
    padding:40px 20px;
    color:var(--muted);
    border-top:
        1px solid rgba(255,255,255,.08);
}
/* ==========================
   Hover Glow
========================== */
.primary,
.secondary,
.card,
.skills span{
    will-change:transform;
}
/* ==========================
   Reveal Animation
========================== */
.reveal{
    opacity:0;
    transform:translateY(50px);
    transition:
        opacity .8s ease,
        transform .8s ease;
}
.reveal.active{
    opacity:1;
    transform:translateY(0);
}
/* ==========================
   Card Floating Animation
========================== */
@keyframes floatCard{
    0%{
        transform:translateY(0);
    }
    50%{
        transform:translateY(-5px);
    }
    100%{
        transform:translateY(0);
    }
}
.project-grid .card:nth-child(1){
    animation:floatCard 7s infinite ease-in-out;
}
.project-grid .card:nth-child(2){
    animation:floatCard 8s infinite ease-in-out;
}
.project-grid .card:nth-child(3){
    animation:floatCard 9s infinite ease-in-out;
}
/* ==========================
   Section Fade Divider
========================== */
section{
    position:relative;
}
section::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:0;
    width:150px;
    height:1px;
    background:
        linear-gradient(
            90deg,
            transparent,
            rgba(255,255,255,.12),
            transparent
        );
    transform:translateX(-50%);
}
/* ==========================
   Mouse Selection
========================== */
::selection{
    background:var(--primary);
    color:white;
}
/* ==========================
   Scrollbar
========================== */
::-webkit-scrollbar{
    width:10px;
}
::-webkit-scrollbar-track{
    background:#0b0b0e;
}
::-webkit-scrollbar-thumb{
    background:#333;
    border-radius:20px;
}
::-webkit-scrollbar-thumb:hover{
    background:var(--primary);
}
/* ==========================
   Responsive
========================== */
@media(max-width:900px){
    .project-grid{
        grid-template-columns:1fr;
    }
    .card{
        padding:28px;
    }
    #experience .card{
        padding-left:35px;
    }
}
@media(max-width:600px){
    .skills{
        gap:12px;
    }
    .skills span{
        font-size:.9rem;
        padding:12px 18px;
    }
    .project-grid{
        margin-top:35px;
    }
}
/* ==========================================================
   PHASE 1 - PART 3
   Premium Effects • Animations • Timeline • Utilities
   ========================================================== */
/* ===========================
   Animated Aurora Background
=========================== */
body::after{
    content:"";
    position:fixed;
    inset:-25%;
    z-index:-3;
    background:
        radial-gradient(circle,#3B82F620 0%,transparent 45%),
        radial-gradient(circle,#8B5CF620 0%,transparent 45%),
        radial-gradient(circle,#14B8A620 0%,transparent 45%);
    background-size:35% 35%;
    background-repeat:no-repeat;
    animation:aurora 25s linear infinite;
    filter:blur(80px);
}
@keyframes aurora{
    0%{
        background-position:
        5% 15%,
        90% 30%,
        50% 85%;
    }
    50%{
        background-position:
        40% 60%,
        15% 80%,
        75% 20%;
    }
    100%{
        background-position:
        5% 15%,
        90% 30%,
        50% 85%;
    }
}
/* ===========================
   Navbar Scroll State
=========================== */
.navbar.scrolled{
    background:rgba(18,18,20,.88);
    backdrop-filter:blur(24px);
    box-shadow:
        0 15px 40px rgba(0,0,0,.35);
}
/* ===========================
   Mouse Glow
=========================== */
.cursor-glow{
    position:fixed;
    width:420px;
    height:420px;
    border-radius:50%;
    pointer-events:none;
    background:
        radial-gradient(circle,
        rgba(59,130,246,.12),
        transparent 70%);
    transform:translate(-50%,-50%);
    z-index:-1;
    transition:
        transform .08s linear;
}
/* ===========================
   Timeline
=========================== */
.timeline{
    position:relative;
    margin-top:70px;
}
.timeline::before{
    content:"";
    position:absolute;
    left:25px;
    top:0;
    width:2px;
    height:100%;
    background:
        linear-gradient(
            var(--primary),
            transparent
        );
}
.timeline-item{
    position:relative;
    margin-left:70px;
    margin-bottom:45px;
}
.timeline-item::before{
    content:"";
    position:absolute;
    left:-55px;
    top:8px;
    width:18px;
    height:18px;
    border-radius:50%;
    background:var(--primary);
    box-shadow:
        0 0 18px var(--primary);
}
/* ===========================
   Section Heading Decoration
=========================== */
section h2{
    position:relative;
    display:inline-block;
    width:fit-content;
    margin-left:auto;
    margin-right:auto;
    padding-bottom:18px;
}
section h2::after{
    content:"";
    position:absolute;
    left:50%;
    bottom:0;
    width:90px;
    height:4px;
    transform:translateX(-50%);
    border-radius:999px;
    background:
        linear-gradient(
            90deg,
            var(--primary),
            var(--secondary)
        );
}
/* ===========================
   Card Shine Effect
=========================== */
.card{
    isolation:isolate;
}
.card::after{
    content:"";
    position:absolute;
    top:-120%;
    left:-50%;
    width:45%;
    height:320%;
    background:
        linear-gradient(
            rgba(255,255,255,0),
            rgba(255,255,255,.10),
            rgba(255,255,255,0)
        );
    transform:rotate(25deg);
    transition:.8s;
}
.card:hover::after{
    left:140%;
}
/* ===========================
   Image Placeholder
=========================== */
.profile{
    width:230px;
    height:230px;
    border-radius:50%;
    object-fit:cover;
    border:4px solid rgba(255,255,255,.08);
    box-shadow:
        0 20px 50px rgba(0,0,0,.35);
    transition:.4s;
}
.profile:hover{
    transform:scale(1.05);
}
/* ===========================
   Stats
=========================== */
.stats{
    display:flex;
    justify-content:center;
    gap:40px;
    margin-top:60px;
    flex-wrap:wrap;
}
.stat{
    text-align:center;
}
.stat h3{
    font-size:2.8rem;
    color:var(--primary);
}
.stat p{
    margin-top:8px;
}
/* ===========================
   Social Icons
=========================== */
.socials{
    display:flex;
    justify-content:center;
    gap:18px;
    margin-top:30px;
}
.socials a{
    width:52px;
    height:52px;
    display:flex;
    justify-content:center;
    align-items:center;
    border-radius:50%;
    background:rgba(255,255,255,.05);
    border:1px solid rgba(255,255,255,.08);
    transition:.3s;
}
.socials a:hover{
    background:var(--primary);
    transform:translateY(-5px);
}
/* ===========================
   Floating Animation
=========================== */
@keyframes floating{
    0%{
        transform:translateY(0);
    }
    50%{
        transform:translateY(-8px);
    }
    100%{
        transform:translateY(0);
    }
}
.badge{
    animation:floating 5s ease infinite;
}
/* ===========================
   Fade Up
=========================== */
.fade-up{
    animation:fadeUp .8s ease forwards;
}
@keyframes fadeUp{
    from{
        opacity:0;
        transform:translateY(40px);
    }
    to{
        opacity:1;
        transform:translateY(0);
    }
}
/* ===========================
   Loading Animation
=========================== */
.loading{
    opacity:0;
    animation:pageLoad .9s ease forwards;
}
@keyframes pageLoad{
    to{
        opacity:1;
    }
}
/* ===========================
   Utilities
=========================== */
.text-center{
    text-align:center;
}
.mt-2{
    margin-top:20px;
}
.mt-4{
    margin-top:40px;
}
.mt-6{
    margin-top:60px;
}
.hidden{
    display:none;
}
/* ===========================
   Accessibility
=========================== */
:focus-visible{
    outline:2px solid var(--primary);
    outline-offset:4px;
}
@media (prefers-reduced-motion:reduce){
    *{
        animation:none !important;
        transition:none !important;
        scroll-behavior:auto !important;
    }
}
/* ===========================
   Mobile Polish
=========================== */
@media(max-width:900px){
    .timeline{
        margin-left:10px;
    }
    .timeline-item{
        margin-left:55px;
    }
    .stats{
        gap:20px;
    }
}
@media(max-width:600px){
    .cursor-glow{
        display:none;
    }
    .timeline::before{
        left:18px;
    }
    .timeline-item::before{
        left:-45px;
    }
    .stat h3{
        font-size:2.2rem;
    }
    .profile{
        width:170px;
        height:170px;
    }
}