/* ===========================================================
   Tokens
   =========================================================== */
:root {
  --bg: #0a1e30;
  --bg-alt: #0c2338;
  --surface: #0f2c46;
  --surface-2: #133451;
  --border: #1d456a;
  --text: #EAF2F8;
  --text-muted: #8fa7bd;
  --accent: #29b6f6;
  --accent-2: #5ce1ff;
  --green: #5FD98A;
  --red: #FF6B6B;
  --font-display: 'Space Grotesk', sans-serif;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --radius: 10px;
  --max-width: 1080px;
}

[data-theme="light"] {
  --bg: #F3F7FA;
  --bg-alt: #FFFFFF;
  --surface: #FFFFFF;
  --surface-2: #EAF1F6;
  --border: #D7E3EC;
  --text: #10222F;
  --text-muted: #5A7386;
  --accent: #0F8FD1;
  --accent-2: #0068A8;
  --green: #2F9E5B;
  --red: #D8433D;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  * { animation-duration: 0.001ms !important; animation-iteration-count: 1 !important; transition-duration: 0.001ms !important; scroll-behavior: auto !important; }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background 0.2s, color 0.2s;
}

a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
a:focus-visible, button:focus-visible, input:focus-visible, textarea:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* ===========================================================
   Navbar
   =========================================================== */
.navbar {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  gap: 28px;
  background: var(--bg-alt);
  border-bottom: 1px solid var(--border);
  padding: 16px 32px;
}

.navbar__brand {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  color: var(--text);
}
.navbar__brand span { color: var(--accent); }
.navbar__brand:hover { text-decoration: none; }

.navbar__links { 
    display: flex; 
    gap: 26px; 
    margin-left: auto; /* Ye links ko right side dhakel dega */
}
.navbar__links a {
  color: var(--text-muted);
  font-weight: 500;
  font-size: 0.92rem;
}
.navbar__links a:hover { color: var(--accent); text-decoration: none; }

.theme-toggle {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  width: 34px;
  height: 34px;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 0.95rem;
  flex-shrink: 0;
}
.theme-toggle:hover { border-color: var(--accent); }

.navbar__menu { display: none; background: none; border: none; color: var(--text); font-size: 1.3rem; cursor: pointer; }

@media (max-width: 780px) {
  .navbar__links { display: none; }
  .navbar__links.is-open {
    display: flex; flex-direction: column; gap: 4px;
    position: absolute; top: 100%; left: 0; right: 0;
    background: var(--bg-alt); border-bottom: 1px solid var(--border);
    padding: 10px 32px 20px;
  }
  .navbar__menu { display: block; }
  .theme-toggle { margin-left: auto; }
}

/* ===========================================================
   Shared section layout
   =========================================================== */
.section { max-width: var(--max-width); margin: 0 auto; padding: 80px 24px; }
.section--center { text-align: center; }

.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.7rem, 3.2vw, 2.3rem);
  font-weight: 700;
  margin: 0 0 40px;
  letter-spacing: -0.01em;
}
.section__title span { color: var(--accent); }

.empty-note { color: var(--text-muted); font-family: var(--font-mono); font-size: 0.9rem; }
.path-label { font-family: var(--font-mono); font-size: 0.8rem; color: var(--text-muted); }

/* ===========================================================
   Hero
   =========================================================== */
.hero {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 70px 24px;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 50px;
  align-items: center;
}

.hero__text h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 2.9rem);
  font-weight: 700;
  margin: 0 0 6px;
  letter-spacing: -0.02em;
}
.hero__text h1 span { color: var(--accent); }

.hero__role {
  font-family: var(--font-display);
  color: var(--accent-2);
  font-size: 1.2rem;
  font-weight: 600;
  margin: 0 0 20px;
}

.hero__bio { color: var(--text-muted); font-size: 1.02rem; max-width: 56ch; margin: 0 0 30px; }

.hero__actions { display: flex; flex-wrap: wrap; gap: 14px; margin-bottom: 30px; }

.hero__social { display: flex; gap: 14px; }
.hero__social a {
  width: 38px; height: 38px; border-radius: 50%;
  border: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted);
}
.hero__social a:hover { border-color: var(--accent); color: var(--accent); text-decoration: none; }

.hero__image { display: flex; justify-content: center; }
.hero__image img {
  width: 100%; max-width: 380px; aspect-ratio: 1/1; object-fit: cover;
  border-radius: 50%; border: 3px solid var(--surface-2);
}
.hero__image-placeholder {
  width: 260px; height: 260px; border-radius: 50%;
  background: linear-gradient(145deg, var(--surface-2), var(--surface));
  border: 3px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 4rem; color: var(--accent);
}

@media (max-width: 780px) {
  .hero { grid-template-columns: 1fr; text-align: center; }
  .hero__actions, .hero__social { justify-content: center; }
  .hero__image { order: -1; }
}

/* ===========================================================
   Buttons
   =========================================================== */
.btn {
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 0.92rem;
  padding: 13px 26px;
  border-radius: 8px;
  border: 1px solid transparent;
  cursor: pointer;
  display: inline-block;
  transition: transform 0.15s, background 0.15s, border-color 0.15s;
}
.btn:hover { text-decoration: none; transform: translateY(-2px); }

.btn--primary { background: var(--accent); color: #06141f; }
.btn--primary:hover { background: var(--accent-2); }

.btn--ghost { background: transparent; border-color: var(--border); color: var(--text); }
.btn--ghost:hover { border-color: var(--accent); color: var(--accent); }

/* ===========================================================
   About
   =========================================================== */
.about-avatar { display: flex; justify-content: center; margin-bottom: 28px; }
.about-avatar img {
  width: 160px; height: 160px; border-radius: 50%; object-fit: cover;
  border: 3px solid var(--accent);
}
.about-avatar__placeholder {
  width: 160px; height: 160px; border-radius: 50%;
  background: var(--surface-2); border: 3px solid var(--accent);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-size: 3rem; color: var(--accent);
}
.about-greeting { font-family: var(--font-display); font-size: 1.3rem; margin: 0 0 14px; }
.about-bio { color: var(--text-muted); max-width: 65ch; margin: 0 auto 28px; }

/* ===========================================================
   Journey (Education + Experience) / Skills two-column layout
   =========================================================== */
.journey-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(300px, 1fr)); gap: 36px; }
.journey-col__title {
  font-family: var(--font-display);
  color: var(--accent);
  font-size: 1.1rem;
  margin: 0 0 22px;
}

.timeline { position: relative; padding-left: 26px; border-left: 2px solid var(--border); }
.timeline__item { position: relative; padding-bottom: 30px; }
.timeline__item:last-child { padding-bottom: 0; }
.timeline__marker {
  position: absolute; left: -32px; top: 4px;
  width: 11px; height: 11px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 0 4px rgba(41, 182, 246, 0.18);
}
.timeline__content {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px 18px;
}
.timeline__date { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent-2); }
.timeline__content h4 { font-family: var(--font-display); font-size: 1.02rem; margin: 6px 0 4px; }
.timeline__company { color: var(--text-muted); font-size: 0.88rem; margin: 0 0 8px; }
.timeline__desc { color: var(--text-muted); font-size: 0.88rem; margin: 0; }

/* Skills */
.skill-bar { margin-bottom: 18px; }
.skill-bar__label { display: flex; justify-content: space-between; font-size: 0.9rem; margin-bottom: 7px; }
.skill-bar__pct { font-family: var(--font-mono); color: var(--accent-2); }
.skill-bar__track { height: 8px; background: var(--surface-2); border: 1px solid var(--border); border-radius: 4px; overflow: hidden; }
.skill-bar__fill {
  height: 100%; width: 0;
  background: linear-gradient(90deg, var(--accent), var(--accent-2));
  border-radius: 4px;
  transition: width 1.1s cubic-bezier(0.16, 1, 0.3, 1);
}

/* ===========================================================
   Projects
   =========================================================== */
.projects-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 22px; }
.project-card {
  background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; display: flex; flex-direction: column;
  transition: border-color 0.2s, transform 0.2s;
}
.project-card:hover { border-color: var(--accent); transform: translateY(-4px); }
.project-card--featured { border-color: var(--accent); }
.project-card__image { aspect-ratio: 16/10; overflow: hidden; background: var(--surface-2); }
.project-card__image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.project-card__body { padding: 20px; flex: 1; display: flex; flex-direction: column; }
.badge {
  font-family: var(--font-mono); font-size: 0.7rem; color: var(--accent);
  border: 1px solid var(--accent); border-radius: 20px; padding: 2px 10px;
  align-self: flex-start; margin-bottom: 10px;
}
.project-card__title { font-family: var(--font-display); font-size: 1.15rem; margin: 0 0 8px; }
.project-card__desc { color: var(--text-muted); font-size: 0.92rem; margin: 0 0 14px; flex: 1; }
.project-card__tech { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 14px; }
.chip { font-family: var(--font-mono); font-size: 0.72rem; background: var(--surface-2); color: var(--text-muted); padding: 3px 9px; border-radius: 5px; }
.project-card__links { display: flex; gap: 16px; font-family: var(--font-mono); font-size: 0.85rem; }

/* ===========================================================
   Blog
   =========================================================== */
.section__head-row { display: flex; justify-content: space-between; align-items: baseline; flex-wrap: wrap; gap: 10px; margin-bottom: 30px; }
.link-more { font-family: var(--font-mono); font-size: 0.85rem; }
.blog-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 20px; }
.blog-card { display: block; background: var(--surface); border: 1px solid var(--border); border-radius: var(--radius); overflow: hidden; color: var(--text); transition: border-color 0.2s, transform 0.2s; }
.blog-card:hover { border-color: var(--accent); transform: translateY(-4px); text-decoration: none; }
.blog-card__image { aspect-ratio: 16/9; background: var(--surface-2); overflow: hidden; }
.blog-card__image img { width: 100%; height: 100%; object-fit: cover; display: block; }
.blog-card__body { padding: 18px 20px; }
.blog-card__body h3 { font-family: var(--font-display); font-size: 1.05rem; margin: 0 0 8px; }
.blog-card__body p { color: var(--text-muted); font-size: 0.9rem; margin: 0 0 12px; }
.blog-card__date { font-family: var(--font-mono); font-size: 0.75rem; color: var(--text-muted); }

.post__title { font-family: var(--font-display); font-size: clamp(1.6rem, 4vw, 2.4rem); margin: 14px 0 8px; }
.post__date { font-family: var(--font-mono); color: var(--text-muted); font-size: 0.85rem; margin: 0 0 24px; }
.post__cover { border-radius: var(--radius); overflow: hidden; margin-bottom: 28px; border: 1px solid var(--border); }
.post__cover img { width: 100%; display: block; }
.post__content { font-size: 1.05rem; max-width: 70ch; }
.post__content p { margin: 0 0 20px; color: var(--text); }

/* ===========================================================
   Contact form
   =========================================================== */
.contact-form { max-width: 700px; }
.contact-form__grid { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; margin-bottom: 16px; }
.contact-form input, .contact-form textarea {
  width: 100%;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 14px 16px;
  color: var(--text);
  font-family: var(--font-body);
  font-size: 0.95rem;
  resize: vertical;
}
.contact-form textarea { margin-bottom: 20px; }
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent); }
.contact-form input::placeholder, .contact-form textarea::placeholder { color: var(--text-muted); }

@media (max-width: 600px) {
  .contact-form__grid { grid-template-columns: 1fr; }
}

.form-alert { font-family: var(--font-mono); font-size: 0.85rem; padding: 10px 14px; border-radius: 8px; margin-bottom: 18px; border: 1px solid var(--border); }
.form-alert--success { border-color: var(--green); color: var(--green); }
.form-alert--error { border-color: var(--red); color: var(--red); }

/* ===========================================================
   Footer
   =========================================================== */
.footer {
  text-align: center;
  padding: 36px 24px 60px;
  color: var(--text-muted);
  font-family: var(--font-mono);
  font-size: 0.82rem;
  border-top: 1px solid var(--border);
}
#coding-flow-canvas {
    position: fixed;
    inset: 0;
    z-index: -1; 
    opacity: 0.15;
    pointer-events: none;
}
/* WhatsApp Button Design */
.whatsapp-btn {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 60px;
    height: 60px;
    background-color: #25d366;
    border-radius: 50%;
    display: flex;
    justify-content: center;
    align-items: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.3);
    z-index: 1000;
    transition: transform 0.3s ease;
}

.whatsapp-btn:hover {
    transform: scale(1.1); /* Touch/Hover par thoda bada hoga */
}

.whatsapp-btn img {
    width: 35px;
    height: 35px;
}
/* ===========================================================
   Hero enhancements — badge, typing role, image ring
   =========================================================== */
.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(41, 182, 246, 0.08);
  border: 1px solid rgba(41, 182, 246, 0.35);
  color: var(--accent);
  padding: 6px 16px;
  border-radius: 30px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  margin-bottom: 18px;
}
.hero__badge-dot {
  width: 7px; height: 7px;
  border-radius: 50%;
  background: var(--green);
  box-shadow: 0 0 0 0 rgba(95, 217, 138, 0.6);
  animation: badgePulse 1.8s infinite;
}
@keyframes badgePulse {
  0%   { box-shadow: 0 0 0 0 rgba(95, 217, 138, 0.6); }
  70%  { box-shadow: 0 0 0 8px rgba(95, 217, 138, 0); }
  100% { box-shadow: 0 0 0 0 rgba(95, 217, 138, 0); }
}

.hero__cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent-2);
  margin-left: 2px;
  vertical-align: middle;
  animation: cursorBlink 0.8s infinite;
}
@keyframes cursorBlink { 50% { opacity: 0; } }

.hero__image { position: relative; }
.hero__image-ring {
  position: absolute;
  inset: -12px;
  border-radius: 50%;
  background: conic-gradient(from 0deg, var(--accent), transparent 35%, transparent 65%, var(--accent));
  animation: ringRotate 8s linear infinite;
  z-index: -1;
}
@keyframes ringRotate { 100% { transform: rotate(360deg); } }

.btn--primary:hover { box-shadow: 0 8px 24px rgba(41, 182, 246, 0.35); }

@keyframes waPulse {
  0%   { box-shadow: 0 4px 10px rgba(0,0,0,0.3), 0 0 0 0 rgba(37, 211, 102, 0.5); }
  70%  { box-shadow: 0 4px 10px rgba(0,0,0,0.3), 0 0 0 14px rgba(37, 211, 102, 0); }
  100% { box-shadow: 0 4px 10px rgba(0,0,0,0.3), 0 0 0 0 rgba(37, 211, 102, 0); }
}
.navbar__brand--rsn {
  display: flex;
  align-items: center;
  gap: 12px;
}

.rsn-mark {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #06141f;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 0.88rem;
  letter-spacing: -0.02em;
  box-shadow: 0 4px 14px rgba(41, 182, 246, 0.35);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.navbar__brand--rsn:hover .rsn-mark {
  transform: translateY(-2px) rotate(-4deg);
  box-shadow: 0 6px 18px rgba(41, 182, 246, 0.5);
}

.rsn-tagline {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--text);
}
.rsn-tagline span { color: var(--accent); }

@media (max-width: 480px) {
  .rsn-tagline { display: none; }
}
.about-grid {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 0.85fr 1.15fr;
  gap: 60px;
  align-items: center;
}

.about-grid__image { display: flex; flex-direction: column; align-items: center; }

.about-avatar { margin-bottom: 0; }
.about-avatar img,
.about-avatar__placeholder {
  width: 220px;
  height: 220px;
  border: 4px solid var(--accent);
  box-shadow: 0 0 0 6px rgba(41, 182, 246, 0.12);
}

.about-stats {
  display: flex;
  gap: 18px;
  margin-top: 26px;
}
.about-stat {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 14px 22px;
  text-align: center;
  min-width: 110px;
}
.about-stat__num {
  display: block;
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 700;
  color: var(--accent);
}
.about-stat__label {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
}

.about-grid__content { text-align: left; }

.about-eyebrow {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-2);
  letter-spacing: 0.04em;
  margin-bottom: 10px;
}

.about-grid__content .about-greeting { font-size: 1.6rem; margin: 0 0 16px; }
.about-grid__content .about-bio { margin: 0 0 24px; max-width: 55ch; }

.about-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}
.about-tag {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent);
  border: 1px solid rgba(41, 182, 246, 0.35);
  background: rgba(41, 182, 246, 0.06);
  padding: 6px 14px;
  border-radius: 20px;
}
@media (max-width: 780px) {
  .about-grid { grid-template-columns: 1fr; text-align: center; }
  .about-grid__content { text-align: center; }
  .about-stats { justify-content: center; }
  .about-tags { justify-content: center; }
}
.gradient-text {
  background: linear-gradient(90deg, var(--accent), var(--accent-2), var(--green), var(--accent));
  background-size: 300% auto;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: gradientShift 5s ease infinite;
}
@keyframes gradientShift {
  0%   { background-position: 0% 50%; }
  50%  { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}
@media (prefers-reduced-motion: reduce) {
  .gradient-text { animation: none; }
}