/* =====================================================
   Vikas Pradhan — Portfolio
   Design language: developer terminal / commit-log aesthetic
   ===================================================== */

:root{
  --font-display: 'JetBrains Mono', monospace;
  --font-body: 'Inter', sans-serif;
  --font-mono: 'JetBrains Mono', monospace;

  /* light theme (default) — palette inspired by nimishakarnatak.com */
  --bg: #ffffff;
  --bg-alt: #f3f6fb;
  --card-bg: #ffffff;
  --border: #e2e8f2;
  --text: #232735;
  --text-muted: #5b6472;
  --accent: #1565c0;      /* nimisha's theme blue */
  --accent-2: #d97706;    /* warm amber complement */
  --accent-soft: rgba(21, 101, 192, .08);
  --shadow: 0 20px 50px -20px rgba(30, 41, 59, .14);

  --radius: 10px;
  --max-width: 1080px;
}

html[data-theme="dark"]{
  --bg: #12151c;
  --bg-alt: #171b24;
  --card-bg: #1b2029;
  --border: #2a303c;
  --text: #e7ecf5;
  --text-muted: #98a1b3;
  --accent: #5b9bea;
  --accent-2: #f0a949;
  --accent-soft: rgba(91, 155, 234, .14);
  --shadow: 0 20px 50px -20px rgba(0, 0, 0, .6);
}

*{ box-sizing: border-box; margin:0; padding:0; }

html{ scroll-behavior: smooth; }

body{
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  transition: background .25s ease, color .25s ease;
}

img{ max-width:100%; display:block; }
a{ color: inherit; text-decoration:none; }
ul{ list-style:none; }

::selection{ background: var(--accent); color: var(--bg); }

@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  *{ animation-duration: .001ms !important; transition-duration: .001ms !important; }
}

/* ---------- layout helpers ---------- */
.section-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 28px;
}

.section{ padding: 96px 0; }
.section.alt{ background: var(--bg-alt); }

.section-head{ margin-bottom: 44px; }
.section-head.center{ text-align:center; margin-left:auto; margin-right:auto; max-width: 560px; }
.section-num{
  font-family: var(--font-mono);
  color: var(--accent);
  font-size: .85rem;
  letter-spacing: .08em;
  display:block;
  margin-bottom: 8px;
}
.section-head h2{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: clamp(1.5rem, 2.4vw, 2.1rem);
  letter-spacing: -.01em;
}
.section-sub{
  color: var(--text-muted);
  margin-top: 10px;
  font-family: var(--font-mono);
  font-size: .92rem;
}

/* ---------- buttons ---------- */
.btn{
  display:inline-flex;
  align-items:center;
  gap:8px;
  padding: 13px 22px;
  border-radius: 8px;
  font-family: var(--font-mono);
  font-size: .92rem;
  font-weight: 500;
  border: 1px solid transparent;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, border-color .15s ease;
}
.btn:hover{ transform: translateY(-2px); }
.btn-primary{ background: var(--accent); color: var(--bg); }
.btn-primary:hover{ background: var(--accent); filter: brightness(1.08); }
.btn-ghost{ border-color: var(--border); color: var(--text); }
.btn-ghost:hover{ border-color: var(--accent); color: var(--accent); }

/* ---------- nav ---------- */
.nav{
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border);
}
.nav-inner{
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 16px 28px;
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap: 20px;
}
.logo{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 1.15rem;
  letter-spacing: .02em;
}
.logo-bracket{ color: var(--accent); }
.logo-slash{ color: var(--accent-2); }

.nav-links{
  display:flex;
  gap: 28px;
  font-family: var(--font-mono);
  font-size: .88rem;
}
.nav-links a{
  color: var(--text-muted);
  position: relative;
  padding: 4px 0;
}
.nav-links a::before{ content: "// "; color: var(--accent); opacity:0; transition: opacity .15s ease; }
.nav-links a:hover{ color: var(--text); }
.nav-links a:hover::before{ opacity:1; }

.nav-tools{ display:flex; align-items:center; gap: 14px; }
.theme-toggle{
  width: 36px; height:36px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--card-bg);
  color: var(--text);
  display:flex; align-items:center; justify-content:center;
  cursor:pointer;
}
.theme-toggle .icon-moon{ display:none; }
html[data-theme="light"] .theme-toggle .icon-sun{ display:none; }
html[data-theme="light"] .theme-toggle .icon-moon{ display:block; }

.nav-burger{
  display:none;
  flex-direction:column;
  gap:5px;
  background:none;
  border:none;
  cursor:pointer;
  padding: 6px;
}
.nav-burger span{ width:22px; height:2px; background: var(--text); display:block; }

/* ---------- about-top (intro lives here, no separate hero) ---------- */
.about-top{ padding-top: 64px; }
.intro-row{
  display:grid;
  grid-template-columns: 200px 1fr;
  gap: 44px;
  align-items:center;
  padding-bottom: 56px;
  border-bottom: 1px solid var(--border);
  margin-bottom: 56px;
}
.intro-photo img{
  border-radius: var(--radius);
  border: 1px solid var(--border);
  aspect-ratio: 1/1;
  object-fit: cover;
  box-shadow: var(--shadow);
}
.eyebrow{
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--accent);
  display:flex;
  align-items:center;
  gap:8px;
  margin-bottom: 18px;
  letter-spacing: .04em;
}
.dot{
  width:7px; height:7px; border-radius:50%;
  background: var(--accent);
  box-shadow: 0 0 0 0 var(--accent);
  animation: pulse 2s infinite;
}
@keyframes pulse{
  0%{ box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 55%, transparent); }
  70%{ box-shadow: 0 0 0 7px color-mix(in srgb, var(--accent) 0%, transparent); }
  100%{ box-shadow: 0 0 0 0 color-mix(in srgb, var(--accent) 0%, transparent); }
}
.intro-info h1{
  font-family: var(--font-display);
  font-size: clamp(2.1rem, 4.2vw, 3rem);
  font-weight: 800;
  letter-spacing: -.02em;
  line-height: 1.05;
}
.intro-info .role{
  font-family: var(--font-mono);
  color: var(--accent-2);
  font-size: 1.02rem;
  margin-top: 12px;
}
.hero-cta{ display:flex; gap:14px; margin-top: 26px; flex-wrap:wrap; }
.hero-social{ display:flex; gap: 18px; margin-top: 24px; }
.hero-social a{ color: var(--text-muted); transition: color .15s ease, transform .15s ease; }
.hero-social a:hover{ color: var(--accent); transform: translateY(-2px); }


/*-----------logo-----------*/
.logo {
    display: flex;
    align-items: center;
}

.logo-img {
    width: 45px;
    height: 45px;
    border-radius: 50%;      /* Makes it circular */
    object-fit: cover;       /* Fills the circle without distortion */
    border: 2px solid #00d9ff; /* Optional border */
    transition: 0.3s ease;
}

.logo-img:hover {
    transform: scale(1.1);
    box-shadow: 0 0 12px #00d9ff;
}

/* ---------- about ---------- */
.about-head{ margin-bottom: 32px; }
.about-content{ max-width: 62ch; }
.about-text p{ color: var(--text-muted); margin-bottom: 16px; }
.about-text strong{ color: var(--text); font-weight: 600; }

.subheading{
  font-family: var(--font-mono);
  font-size: .78rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
  margin: 26px 0 12px;
}
.interest-list{
  display:flex;
  flex-wrap:wrap;
  gap: 10px;
}
.interest-list li{
  font-size: .88rem;
  color: var(--text);
  background: var(--accent-soft);
  border: 1px solid transparent;
  padding: 6px 12px;
  border-radius: 20px;
}

.about-meta{
  margin-top: 28px;
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px 28px;
  border-top: 1px solid var(--border);
  padding-top: 24px;
}
.meta-item{ display:flex; flex-direction:column; gap:4px; }
.meta-label{
  font-family: var(--font-mono);
  font-size: .74rem;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent);
}
.meta-value{ font-size: .95rem; }

/* ---------- recent log ---------- */
.log-scroll{
  max-height: 480px;
  overflow-y: auto;
  padding-right: 14px;
  scrollbar-width: thin;
  scrollbar-color: var(--accent) transparent;
}
.log-scroll::-webkit-scrollbar{ width: 6px; }
.log-scroll::-webkit-scrollbar-track{ background: transparent; }
.log-scroll::-webkit-scrollbar-thumb{ background: var(--border); border-radius: 6px; }
.log-scroll::-webkit-scrollbar-thumb:hover{ background: var(--accent); }

.log-list{
  border-left: 2px solid var(--border);
  margin-left: 6px;
}
.log-list li{
  position: relative;
  padding: 0 0 30px 30px;
  display:grid;
  grid-template-columns: 130px 1fr;
  gap: 8px 20px;
}
.log-list li::before{
  content:"";
  position:absolute;
  left:-7px; top: 4px;
  width:12px; height:12px;
  border-radius:50%;
  background: var(--bg-alt);
  border: 2px solid var(--accent);
}
.log-list li:last-child{ padding-bottom:0; }
.log-date{
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--accent);
  white-space: nowrap;
}
.log-text{ color: var(--text-muted); font-size: .96rem; }
.log-text strong{ color: var(--text); font-weight: 600; }

/* ---------- skills ---------- */
.skills-grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}
.skill-card{
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 24px 20px;
}
.skill-card h3{
  font-family: var(--font-mono);
  font-size: .82rem;
  color: var(--accent-2);
  text-transform: uppercase;
  letter-spacing: .06em;
  margin-bottom: 14px;
}
.tag-list{ display:flex; flex-wrap:wrap; gap:8px; }
.tag{
  font-family: var(--font-mono);
  font-size: .8rem;
  padding: 5px 10px;
  border-radius: 6px;
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid transparent;
}

/* ---------- experience timeline ---------- */
.timeline{
  position: relative;
  padding-left: 8px;
}
.timeline-item{
  display:grid;
  grid-template-columns: 56px 1fr;
  gap: 24px;
  position: relative;
  padding-bottom: 44px;
}
.timeline-item:last-child{ padding-bottom:0; }
.timeline-item::before{
  content:"";
  position:absolute;
  left: 27px;
  top: 56px;
  bottom: -20px;
  width: 2px;
  background: var(--border);
}
.timeline-item:last-child::before{ display:none; }

.tl-badge{
  width: 56px; height:56px;
  border-radius: 12px;
  background: color-mix(in srgb, var(--badge-color, var(--accent)) 18%, var(--card-bg));
  border: 1px solid var(--border);
  color: var(--badge-color, var(--accent));
  display:flex; align-items:center; justify-content:center;
  font-family: var(--font-mono);
  font-weight:700;
  font-size: .95rem;
}
.tl-badge img{ width:100%; height:100%; object-fit:contain; border-radius:10px; }
.tl-badge.has-logo{
  background: #ffffff;
  padding: 5px;
  color: transparent;
}

.tl-content{
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px 24px;
}
.tl-top{
  display:flex;
  justify-content:space-between;
  align-items:baseline;
  gap: 16px;
  flex-wrap: wrap;
}
.tl-top h3{ font-size: 1.05rem; font-weight:700; }
.tl-date{
  font-family: var(--font-mono);
  font-size: .78rem;
  color: var(--text-muted);
  white-space:nowrap;
}
.tl-org{ color: var(--accent); font-size: .9rem; margin: 4px 0 12px; font-weight:600; }
.tl-content ul{ display:flex; flex-direction:column; gap: 6px; }
.tl-content li{
  color: var(--text-muted);
  font-size: .92rem;
  padding-left: 16px;
  position: relative;
}
.tl-content li::before{
  content:"›";
  position:absolute;
  left:0;
  color: var(--accent);
}

/* ---------- projects ---------- */
.projects-grid{
  display:grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 22px;
}
.project-card{
  background: var(--card-bg);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 26px;
  transition: border-color .15s ease, transform .15s ease;
}
.project-card:hover{ border-color: var(--accent); transform: translateY(-3px); }
.project-top{ display:flex; justify-content:space-between; align-items:center; margin-bottom: 12px; }
.project-top h3{ font-size: 1.1rem; font-weight:700; }
.project-link{ color: var(--text-muted); }
.project-link:hover{ color: var(--accent); }
.project-card p{ color: var(--text-muted); font-size: .94rem; margin-bottom: 18px; }
.project-thumb{
  width: 100%;
  border-radius: 8px;
  border: 1px solid var(--border);
  margin-top: 16px;
  object-fit: cover;
  max-height: 220px;
}

/* ---------- accomplishments ---------- */
.accolades-grid{
  display:grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 18px;
}
.accolade{
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 22px;
  background: var(--card-bg);
}
.accolade-num{
  font-family: var(--font-display);
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--accent);
  display:block;
  margin-bottom: 10px;
}
.accolade p{ color: var(--text-muted); font-size: .9rem; }

/* ---------- hobbies ---------- */
.hobbies-grid{
  display:grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
.hobby-card{
  text-align:center;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 28px 16px;
  background: var(--card-bg);
  transition: transform .15s ease, border-color .15s ease;
}
.hobby-card:hover{ transform: translateY(-3px); border-color: var(--accent); }
.hobby-emoji{ font-size: 2rem; display:block; margin-bottom: 10px; }
.hobby-card p{
  font-family: var(--font-mono);
  font-size: .88rem;
  color: var(--text);
}

/* ---------- contact ---------- */
.contact-section{ text-align:center; }
.contact-actions{
  display:flex;
  justify-content:center;
  gap: 16px;
  margin-top: 32px;
  flex-wrap: wrap;
}
.contact-links{
  margin-top: 30px;
  font-family: var(--font-mono);
  font-size: .9rem;
  color: var(--text-muted);
}
.contact-links a:hover{ color: var(--accent); }
.contact-links .sep{ margin: 0 10px; opacity:.5; }
.contact-location{ margin-top: 18px; color: var(--text-muted); font-size: .9rem; }

/* ---------- footer ---------- */
.footer{
  text-align:center;
  padding: 34px 20px 50px;
  border-top: 1px solid var(--border);
  color: var(--text-muted);
  font-size: .88rem;
}
.footer .heart{ color: var(--accent-2); }
.footer-hobbies{ margin-top: 6px; font-family: var(--font-mono); font-size: .8rem; opacity:.7; }

/* ---------- back to top ---------- */
.back-to-top{
  position: fixed;
  bottom: 26px;
  right: 26px;
  width: 42px; height:42px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--bg);
  display:flex; align-items:center; justify-content:center;
  font-weight:700;
  opacity:0;
  pointer-events:none;
  transform: translateY(10px);
  transition: opacity .2s ease, transform .2s ease;
  box-shadow: var(--shadow);
  z-index: 40;
}
.back-to-top.visible{ opacity:1; pointer-events:auto; transform:none; }

/* ---------- focus states ---------- */
a:focus-visible, button:focus-visible{
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

/* =====================================================
   Responsive
   ===================================================== */
@media (max-width: 900px){
  .intro-row{ grid-template-columns: 1fr; text-align:center; }
  .intro-photo img{ width: 140px; margin: 0 auto; }
  .hero-cta, .hero-social{ justify-content:center; }
  .skills-grid{ grid-template-columns: repeat(2, 1fr); }
  .projects-grid{ grid-template-columns: 1fr; }
  .accolades-grid{ grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px){
  .nav-links{
    position: absolute;
    top: 100%; left:0; right:0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 18px 28px;
    gap: 16px;
    display:none;
  }
  .nav-links.open{ display:flex; }
  .nav-burger{ display:flex; }
  .about-meta{ grid-template-columns: 1fr; }
  .log-list li{ grid-template-columns: 1fr; gap: 4px; }
  .timeline-item{ grid-template-columns: 44px 1fr; gap: 16px; }
  .tl-badge{ width:44px; height:44px; font-size:.78rem; }
  .timeline-item::before{ left: 21px; }
}

@media (max-width: 520px){
  .skills-grid{ grid-template-columns: 1fr; }
  .accolades-grid{ grid-template-columns: 1fr; }
  .section{ padding: 68px 0; }
}
.footer-license {
    margin-top: 8px;
    font-size: 0.9rem;
    color: #bdbdbd;
}

.footer-license a {
    color: #00d9ff;
    text-decoration: none;
    transition: color 0.3s ease;
}

.footer-license a:hover {
    color: #ffffff;
    text-decoration: underline;
}