@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Poppins:wght@300;400;500;600;700&display=swap');

/* ===== RESET & ROOT ===== */
* {
  margin: 0; padding: 0;
  box-sizing: border-box;
  text-decoration: none;
  border: none; outline: none;
  scroll-behavior: smooth;
}

:root {
  --bg-color: #0d1117;
  --second-bg-color: #111827;
  --card-bg: #1a2332;
  --text-color: #e2e8f0;
  --muted-color: #94a3b8;
  --main-color: #06b6d4;          /* cyan */
  --main-dark: #0891b2;
  --accent-glow: rgba(6,182,212,0.30);
  --accent-soft: rgba(6,182,212,0.10);
  --border: rgba(6,182,212,0.12);
  --border-subtle: rgba(255,255,255,0.06);
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Poppins', sans-serif;
}

html { font-size: 62.5%; overflow-x: hidden; }
body { background: var(--bg-color); color: var(--text-color); font-family: var(--font-body); }
section { min-height: 100vh; padding: 10rem 9% 5rem; }

.section-sub {
  text-align: center;
  font-size: 1.5rem;
  color: var(--muted-color);
  margin-top: -1.5rem;
  margin-bottom: 5rem;
}

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 5px; }
::-webkit-scrollbar-track { background: var(--bg-color); }
::-webkit-scrollbar-thumb { background: var(--main-color); border-radius: 3px; }
::selection { background: var(--main-color); color: #000; }

/* ===== HEADER ===== */
.header {
  position: fixed; top: 0; left: 0; width: 100%;
  padding: 1.6rem 9%;
  background: rgba(13,17,23,0.88);
  backdrop-filter: blur(14px);
  display: flex; justify-content: space-between; align-items: center;
  z-index: 1000;
  border-bottom: 1px solid transparent;
  transition: border-color .3s;
}
.header.sticky { border-bottom: 1px solid var(--border); }

.logo {
  font-family: var(--font-display);
  font-size: 2.4rem; font-weight: 700;
  color: var(--text-color); letter-spacing: -.05em;
}
.logo span { color: var(--main-color); }

.navbar a {
  font-size: 1.35rem; color: var(--muted-color);
  margin-left: 2.6rem; font-weight: 500;
  transition: color .3s; position: relative;
}
.navbar a::after {
  content: ''; position: absolute; bottom: -5px; left: 0;
  width: 0; height: 2px; background: var(--main-color);
  border-radius: 2px; transition: width .3s;
}
.navbar a:hover, .navbar a.active { color: var(--main-color); }
.navbar a:hover::after, .navbar a.active::after { width: 100%; }

#menu-icon { font-size: 3rem; color: var(--text-color); display: none; cursor: pointer; }

/* ===== BUTTONS ===== */
.btn {
  display: inline-flex; align-items: center; gap: .6rem;
  padding: 1rem 2.4rem;
  background: var(--main-color);
  border-radius: .8rem;
  color: #000; font-family: var(--font-body);
  font-size: 1.5rem; font-weight: 600;
  letter-spacing: .02em;
  transition: all .3s ease;
  box-shadow: 0 0 20px var(--accent-glow);
  cursor: pointer;
}
.btn:hover {
  background: transparent;
  color: var(--main-color);
  box-shadow: 0 0 0 2px var(--main-color), 0 0 20px var(--accent-glow);
}
.btn-outline {
  background: transparent;
  color: var(--main-color);
  box-shadow: 0 0 0 2px var(--main-color);
}
.btn-outline:hover {
  background: var(--main-color);
  color: #000;
  box-shadow: 0 0 20px var(--accent-glow);
}

/* ===== HOME ===== */
.home {
  display: flex; justify-content: center; align-items: center;
  gap: 8rem; padding-top: 12rem; min-height: 100vh;
}
.home-greeting {
  font-size: 1.6rem; color: var(--muted-color); margin-bottom: .8rem;
}
.home-content h1 {
  font-family: var(--font-display);
  font-size: 5.8rem; font-weight: 700;
  line-height: 1.1; letter-spacing: -.04em;
  margin-bottom: 1.2rem;
}
.home-content h3 {
  font-size: 2.4rem; font-weight: 500;
  color: var(--muted-color); margin-bottom: 2rem;
}
.multiple-text { color: var(--main-color); }
.home-content p {
  font-size: 1.55rem; color: var(--muted-color);
  max-width: 50rem; line-height: 1.75;
}
.social-media { display: flex; gap: 1.2rem; margin: 2.5rem 0; }
.social-media a {
  display: inline-flex; justify-content: center; align-items: center;
  width: 4rem; height: 4rem;
  border: 1px solid var(--border-subtle);
  border-radius: .8rem; color: var(--muted-color);
  font-size: 2rem; background: var(--card-bg);
  transition: all .3s;
}
.social-media a:hover { border-color: var(--main-color); color: var(--main-color); box-shadow: 0 0 14px var(--accent-glow); }
.home-btns { display: flex; gap: 1.5rem; flex-wrap: wrap; }

/* Home image */
.home-img { position: relative; flex-shrink: 0; }
.img-ring {
  position: relative;
  width: 34vw; max-width: 380px; min-width: 260px;
}
.img-ring::before {
  content: '';
  position: absolute; inset: -12px; border-radius: 50%;
  background: conic-gradient(transparent 55%, var(--main-color), transparent 65%);
  animation: rotateRing 5s linear infinite;
  filter: blur(10px); z-index: -1;
}
.img-ring img {
  width: 100%; aspect-ratio: 1/1; object-fit: cover;
  border-radius: 50%;
  border: 3px solid var(--main-color);
  box-shadow: 0 0 30px var(--accent-glow), 0 0 70px rgba(6,182,212,.15);
  transition: transform .5s;
  display: block;
}
.img-ring img:hover { transform: scale(1.04); }
@keyframes rotateRing { 100% { transform: rotate(360deg); } }

/* ===== ABOUT ===== */
.about {
  display: flex; justify-content: center; align-items: center;
  gap: 7rem; background: var(--second-bg-color);
}
.about-img-wrap {
  position: relative; display: inline-block;
}
.about-img-wrap img {
  width: 28vw; max-width: 300px; min-width: 200px;
  border-radius: 2rem;
  border: 2px solid var(--main-color);
  box-shadow: 0 0 28px var(--accent-glow);
  display: block;
}
.about-img-badge {
  position: absolute; bottom: -1.5rem; right: -1.5rem;
  background: var(--main-color);
  color: #000; font-size: 1.3rem; font-weight: 700;
  padding: .8rem 1.4rem; border-radius: 1rem;
  display: flex; align-items: center; gap: .5rem;
  box-shadow: 0 4px 16px var(--accent-glow);
}
.heading {
  font-family: var(--font-display);
  font-size: 4rem; font-weight: 700;
  letter-spacing: -.03em;
  text-align: center; margin-bottom: 1rem;
}
.heading span { color: var(--main-color); }
.about-content h2 { text-align: left; }
.about-content h3 { font-size: 1.9rem; font-weight: 400; color: var(--muted-color); margin-bottom: 1.8rem; }
.about-content p { font-size: 1.5rem; color: var(--muted-color); line-height: 1.8; margin-bottom: 1.5rem; }
.about-content p strong { color: var(--text-color); }
.about-stats { display: flex; gap: 1.5rem; margin: 2.5rem 0 3rem; flex-wrap: wrap; }
.stat-box {
  background: var(--card-bg); border: 1px solid var(--border-subtle);
  border-radius: 1.2rem; padding: 1.4rem 2rem;
  text-align: center; flex: 1 1 7rem;
  transition: border-color .3s, transform .3s;
}
.stat-box:hover { border-color: var(--main-color); transform: translateY(-4px); }
.stat-box h4 { font-family: var(--font-display); font-size: 2.6rem; font-weight: 700; color: var(--main-color); }
.stat-box p { font-size: 1.2rem; color: var(--muted-color); margin: 0; }

/* ===== SKILLS ===== */
.skills { background: var(--bg-color); }

/* 3-2 grid layout */
.skills-wrapper {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2rem;
  margin-bottom: 5rem;
  max-width: 100rem;
  margin-left: auto;
  margin-right: auto;
}
/* last 2 cards centered */
.skill-category:nth-child(4),
.skill-category:nth-child(5) {
  grid-column: span 1;
}
.skills-wrapper::after {
  content: '';
  grid-column: span 1;
  display: none;
}
/* push last row to center */
.skill-category:nth-child(4) { grid-column: 1; }
.skill-category:nth-child(5) { grid-column: 2; }

.skill-category {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 1.4rem; padding: 2.2rem 2.4rem;
  transition: border-color .3s, transform .3s;
}
.skill-category:hover { border-color: var(--main-color); transform: translateY(-4px); }
.skill-category h4 {
  font-size: 1.45rem; font-weight: 600; color: var(--text-color);
  margin-bottom: 1.4rem; display: flex; align-items: center; gap: .7rem;
}
.skill-category h4 i { color: var(--main-color); font-size: 1.8rem; }
.skill-tags { display: flex; flex-wrap: wrap; gap: .8rem; }
.skill-tags span {
  background: var(--accent-soft); color: var(--main-color);
  border: 1px solid rgba(6,182,212,.25);
  border-radius: 2rem; padding: .4rem 1.2rem;
  font-size: 1.2rem; font-weight: 500;
}

.skill-bars {
  max-width: 72rem; margin: 0 auto;
  display: flex; flex-direction: column; gap: 2rem;
}
.skill-label {
  display: flex; justify-content: space-between;
  font-size: 1.4rem; color: var(--text-color); margin-bottom: .8rem;
}
.skill-label span:last-child { color: var(--main-color); font-weight: 600; }
.skill-track {
  width: 100%; height: 6px;
  background: var(--card-bg); border-radius: 3px; overflow: hidden;
}
.skill-fill {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--main-color), #818cf8);
  border-radius: 3px;
  transition: width 1.5s cubic-bezier(.4,0,.2,1);
}

/* ===== JOURNEY GRID ===== */
.timeline-section { background: var(--second-bg-color); }

.journey-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.2rem;
  max-width: 110rem;
  margin: 0 auto;
}

.journey-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 1.6rem;
  padding: 2.4rem;
  display: flex;
  gap: 1.6rem;
  align-items: flex-start;
  transition: border-color .3s, transform .3s, box-shadow .3s;
  position: relative;
  overflow: hidden;
}
.journey-card::before {
  content: '';
  position: absolute; top: 0; left: 0;
  width: 3px; height: 100%;
  background: var(--main-color);
  opacity: 0;
  transition: opacity .3s;
}
.journey-card:hover {
  border-color: var(--main-color);
  transform: translateY(-5px);
  box-shadow: 0 12px 32px rgba(6,182,212,.12);
}
.journey-card:hover::before { opacity: 1; }

.jc-icon {
  width: 4.6rem; height: 4.6rem; flex-shrink: 0;
  background: var(--accent-soft);
  border: 1px solid rgba(6,182,212,.2);
  border-radius: 1rem;
  display: flex; align-items: center; justify-content: center;
}
.jc-icon i { font-size: 2.2rem; color: var(--main-color); }

.jc-body { flex: 1; }
.jc-badge {
  display: inline-block; font-size: 1.1rem; font-weight: 600;
  padding: .3rem 1rem; border-radius: 2rem; margin-bottom: .8rem;
}
.jc-badge.education { background: rgba(6,182,212,.1); color: var(--main-color); border: 1px solid rgba(6,182,212,.2); }
.jc-badge.internship { background: rgba(99,102,241,.1); color: #818cf8; border: 1px solid rgba(99,102,241,.2); }
.jc-badge.hackathon { background: rgba(245,158,11,.1); color: #f59e0b; border: 1px solid rgba(245,158,11,.2); }
.jc-badge.project { background: rgba(16,185,129,.1); color: #10b981; border: 1px solid rgba(16,185,129,.2); }
.jc-badge.cert { background: rgba(239,68,68,.1); color: #ef4444; border: 1px solid rgba(239,68,68,.2); }

.jc-body h4 {
  font-family: var(--font-display); font-size: 1.55rem;
  font-weight: 600; color: var(--text-color); margin-bottom: .5rem;
}
.jc-org {
  font-size: 1.25rem; color: var(--main-color);
  font-weight: 500; margin-bottom: .8rem;
  display: flex; align-items: center; gap: .4rem;
}
.jc-body > p {
  font-size: 1.3rem; color: var(--muted-color);
  line-height: 1.7; margin-bottom: 1rem;
}
.jc-body > p strong { color: var(--text-color); }
.jc-tags { display: flex; flex-wrap: wrap; gap: .6rem; }
.jc-tags span {
  background: var(--bg-color);
  color: var(--muted-color);
  border: 1px solid var(--border-subtle);
  border-radius: 2rem; padding: .3rem 1rem;
  font-size: 1.1rem;
}

/* ===== SERVICES ===== */
.services { background: var(--bg-color); }
.services-container { display: flex; justify-content: center; flex-wrap: wrap; gap: 2.5rem; }
.services-box {
  flex: 1 1 28rem; max-width: 34rem;
  background: var(--card-bg);
  padding: 3.5rem 2.5rem; border-radius: 2rem;
  text-align: center;
  border: 1px solid var(--border-subtle);
  transition: all .35s ease;
}
.services-box:hover {
  border-color: var(--main-color);
  transform: translateY(-10px);
  box-shadow: 0 12px 40px rgba(6,182,212,.12);
}
.services-box i { font-size: 5.5rem; color: var(--main-color); margin-bottom: 1.5rem; display: block; }
.services-box h3 { font-family: var(--font-display); font-size: 2.2rem; font-weight: 600; margin-bottom: 1.2rem; }
.services-box p { font-size: 1.5rem; color: var(--muted-color); line-height: 1.7; margin-bottom: 2.5rem; }

/* ===== PORTFOLIO ===== */
.portfolio { background: var(--second-bg-color); }
.portfolio-container { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 2.5rem; }
.portfolio-box {
  position: relative; border-radius: 1.6rem; overflow: hidden;
  border: 1px solid var(--border-subtle); transition: border-color .3s;
}
.portfolio-box:hover { border-color: var(--main-color); }
.portfolio-box img {
  width: 100%; height: 22rem; object-fit: cover;
  transition: transform .5s; display: block;
}
.portfolio-box:hover img { transform: scale(1.08); }
.portfolio-layer {
  position: absolute; bottom: 0; left: 0; width: 100%;
  padding: 2rem 2rem 1.8rem;
  background: linear-gradient(0deg, rgba(13,17,23,.97) 60%, transparent);
  transform: translateY(4rem); opacity: 0;
  transition: all .4s ease;
}
.portfolio-box:hover .portfolio-layer { transform: translateY(0); opacity: 1; }
.p-tag { font-size: 1.1rem; color: var(--main-color); font-weight: 600; letter-spacing: .04em; text-transform: uppercase; }
.portfolio-layer h4 { font-family: var(--font-display); font-size: 1.9rem; font-weight: 600; margin: .4rem 0 .5rem; }
.portfolio-layer p { font-size: 1.3rem; color: var(--muted-color); line-height: 1.6; margin-bottom: 1rem; }
.p-links { display: flex; gap: 1rem; }
.p-links a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3.4rem; height: 3.4rem;
  background: var(--card-bg); border: 1px solid var(--border-subtle);
  border-radius: .6rem; color: var(--text-color); font-size: 1.8rem;
  transition: all .3s;
}
.p-links a:hover { border-color: var(--main-color); color: var(--main-color); }

/* ===== PROFILES ===== */
.profiles { background: var(--bg-color); }

.profiles-grid {
  display: grid; grid-template-columns: repeat(3, 1fr);
  gap: 2.5rem; max-width: 100rem; margin: 0 auto 6rem;
}

.profile-card {
  background: var(--card-bg);
  border: 1px solid var(--border-subtle);
  border-radius: 2rem; padding: 2.8rem 2.4rem;
  display: flex; flex-direction: column; gap: 1.8rem;
  transition: border-color .3s, transform .3s, box-shadow .3s;
}
.profile-card:hover {
  border-color: var(--main-color);
  transform: translateY(-6px);
  box-shadow: 0 16px 40px rgba(6,182,212,.12);
}

.pc-header {
  display: flex; align-items: center; gap: 1.4rem;
}
.pc-header i { font-size: 3.6rem; }
.pc-header h4 { font-family: var(--font-display); font-size: 2rem; font-weight: 700; }
.pc-header span { font-size: 1.3rem; color: var(--muted-color); }

.pc-header.github i { color: #e2e8f0; }
.pc-header.leetcode i { color: #f59e0b; }
.pc-header.gfg i { color: #10b981; }

.pc-stats {
  display: flex; justify-content: space-around;
  background: var(--bg-color); border-radius: 1.2rem; padding: 1.4rem;
  border: 1px solid var(--border-subtle);
}
.pc-stat { text-align: center; }
.ps-val { display: block; font-family: var(--font-display); font-size: 2rem; font-weight: 700; color: var(--main-color); }
.ps-label { font-size: 1.1rem; color: var(--muted-color); }

.pc-desc { font-size: 1.4rem; color: var(--muted-color); line-height: 1.7; flex: 1; }
.pc-btn { width: 100%; justify-content: center; font-size: 1.4rem; }

/* Achievements */
.achievements { max-width: 100rem; margin: 0 auto; }
.achievements h3 {
  font-family: var(--font-display); font-size: 2.4rem; font-weight: 600;
  text-align: center; margin-bottom: 3rem; color: var(--text-color);
}
.achievements-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.8rem;
}
.ach-badge {
  background: var(--card-bg); border: 1px solid var(--border-subtle);
  border-radius: 1.4rem; padding: 2rem;
  display: flex; align-items: center; gap: 1.4rem;
  transition: border-color .3s, transform .3s;
}
.ach-badge:hover { border-color: var(--main-color); transform: translateY(-3px); }
.ach-badge i { font-size: 2.6rem; color: var(--main-color); flex-shrink: 0; }
.ach-badge span { font-size: 1.4rem; font-weight: 600; color: var(--text-color); display: block; }
.ach-badge small { font-size: 1.2rem; color: var(--muted-color); }

/* ===== CONTACT ===== */
.contact { background: var(--second-bg-color); }
.contact-wrapper {
  display: grid; grid-template-columns: 1fr 1.6fr;
  gap: 5rem; max-width: 95rem; margin: 0 auto; align-items: start;
}
.contact-info { display: flex; flex-direction: column; gap: 2rem; }
.contact-info-item {
  display: flex; align-items: flex-start; gap: 1.5rem;
  background: var(--card-bg); border: 1px solid var(--border-subtle);
  border-radius: 1.2rem; padding: 1.8rem 2rem;
  transition: border-color .3s;
}
.contact-info-item:hover { border-color: var(--main-color); }
.contact-info-item i { font-size: 2.4rem; color: var(--main-color); margin-top: .2rem; }
.contact-info-item h4 { font-size: 1.4rem; font-weight: 600; margin-bottom: .3rem; }
.contact-info-item p { font-size: 1.3rem; color: var(--muted-color); }
.contact form { width: 100%; }
.contact form .input-box { display: flex; gap: 1.5rem; flex-wrap: wrap; }
.contact form .input-box input,
.contact form textarea {
  width: 100%; padding: 1.4rem 1.6rem;
  font-size: 1.5rem; font-family: var(--font-body);
  color: var(--text-color); background: var(--card-bg);
  border: 1px solid var(--border-subtle); border-radius: 1rem;
  margin: .6rem 0; transition: border-color .3s;
}
.contact form .input-box input:focus,
.contact form textarea:focus { border-color: var(--main-color); outline: none; }
.contact form .input-box input { width: calc(50% - .75rem); }
.contact form textarea { resize: none; }
.contact-btn { width: 100%; justify-content: center; font-size: 1.6rem; margin-top: 1.5rem; }
#form-status {
  text-align: center; margin-top: 1.2rem;
  font-size: 1.4rem; font-weight: 500; min-height: 2rem;
}
#form-status.success { color: #10b981; }
#form-status.error { color: #ef4444; }

/* ===== FOOTER ===== */
.footer {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1.5rem;
  padding: 2.5rem 9%;
  background: var(--bg-color);
  border-top: 1px solid var(--border-subtle);
}
.footer-text p { font-size: 1.4rem; color: var(--muted-color); }
.footer-text p span { color: var(--main-color); font-weight: 600; }
.footer-social { display: flex; gap: 1rem; }
.footer-social a {
  display: inline-flex; align-items: center; justify-content: center;
  width: 3.6rem; height: 3.6rem;
  background: var(--card-bg); border: 1px solid var(--border-subtle);
  border-radius: .7rem; color: var(--muted-color); font-size: 1.8rem;
  transition: all .3s;
}
.footer-social a:hover { border-color: var(--main-color); color: var(--main-color); }
.footer-iconTop a {
  display: inline-flex; justify-content: center; align-items: center;
  padding: .9rem; background: var(--main-color); border-radius: .8rem;
  transition: box-shadow .3s;
}
.footer-iconTop a:hover { box-shadow: 0 0 16px var(--accent-glow); }
.footer-iconTop a i { font-size: 2.2rem; color: #000; }

/* ===== RESPONSIVE ===== */
@media (max-width: 1100px) {
  html { font-size: 57%; }
  section { padding: 10rem 5% 5rem; }
  .header, .footer { padding-left: 5%; padding-right: 5%; }
  .journey-grid { grid-template-columns: repeat(2, 1fr); }
  .profiles-grid { grid-template-columns: repeat(2, 1fr); }
  .achievements-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 991px) {
  html { font-size: 55%; }
  section { padding: 10rem 4% 5rem; }
  .header, .footer { padding-left: 4%; padding-right: 4%; }
  .skills-wrapper { grid-template-columns: repeat(2, 1fr); }
  .skill-category:nth-child(4), .skill-category:nth-child(5) { grid-column: auto; }
  .contact-wrapper { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
  #menu-icon { display: block; }
  .navbar {
    position: fixed; top: 6rem; left: 0; width: 100%;
    padding: 2rem 4%; background: rgba(13,17,23,.97);
    backdrop-filter: blur(10px); border-bottom: 1px solid var(--border);
    display: none; z-index: 999;
  }
  .navbar.active { display: block; }
  .navbar a { display: block; font-size: 1.8rem; margin: 0 0 2rem; }
  .navbar a::after { display: none; }

  .home { flex-direction: column-reverse; text-align: center; gap: 4rem; padding-top: 12rem; min-height: auto; padding-bottom: 6rem; }
  .img-ring { width: 62vw; margin: 0 auto; }
  .home-content p { margin: 0 auto; }
  .social-media { justify-content: center; }
  .home-btns { justify-content: center; }
  .about { flex-direction: column; text-align: center; gap: 4rem; }
  .about-img-wrap img { width: 55vw; }
  .about-content h2 { text-align: center; }
  .about-stats { justify-content: center; }
  .journey-grid { grid-template-columns: 1fr; }
  .profiles-grid { grid-template-columns: 1fr; }
  .achievements-grid { grid-template-columns: 1fr; }
  .skills-wrapper { grid-template-columns: 1fr; }
  .contact form .input-box input { width: 100%; }
}

@media (max-width: 617px) {
  .portfolio-container { grid-template-columns: 1fr; }
}

@media (max-width: 450px) {
  html { font-size: 50%; }
  .home-content h1 { font-size: 4.4rem; }
}