/* ---- Base (inspired by minimal, typographic layouts like nill.jp) ---- */
:root {
  --bg: #0c0c0c;
  --fg: #e6e6e6;
  --muted: #bdbdbd;
  --brand: #ffffff;
  --card: #141414;
  --ring: #2a2a2a;
  --maxw: 1120px;
  --pad: clamp(16px, 2.5vw, 28px);
}

* { box-sizing: border-box; }
html, body { height: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, "Helvetica Neue", Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol", "Noto Color Emoji", sans-serif;
  background: var(--bg);
  color: var(--fg);
  line-height: 1.6;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: var(--pad);
  border-bottom: 1px solid var(--ring);
  backdrop-filter: blur(6px);
  background: color-mix(in oklab, var(--bg) 85%, transparent);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  text-decoration: none;
  color: var(--fg);
  font-weight: 800;
  letter-spacing: 0.2px;
}
.brand-mark { width: 50px; height: 50px; display: block; }
.brand-text { font-family: "Space Grotesk", Inter, sans-serif; font-size: 1rem; }

.site-nav { display: flex; gap: 20px; }
.site-nav a {
  color: var(--muted);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 8px 10px;
  border-radius: 10px;
}
.site-nav a:hover, .site-nav a:focus { color: var(--fg); outline: none; background: var(--ring); }

/* ---- Hamburger (CSS only) ---- */
.nav-toggle { display: none; }
.hamburger {
  display: none;
  width: 40px; height: 40px; border-radius: 10px;
  align-items: center; justify-content: center;
  cursor: pointer; border: 1px solid var(--ring);
}
.hamburger span {
  display: block; width: 18px; height: 2px; background: var(--fg); position: relative;
}
.hamburger span + span { margin-top: 4px; }
@media (max-width: 860px) {
  .hamburger { display: inline-flex; }
  .site-nav {
    position: fixed; inset: 64px var(--pad) auto var(--pad);
    background: var(--card); border: 1px solid var(--ring);
    border-radius: 16px; padding: 12px;
    flex-direction: column; gap: 6px; display: none;
  }
  .nav-toggle:checked ~ .site-nav { display: flex; }
}

/* ---- Hero ---- */
.hero {
  min-height: clamp(68vh, 90vh, 92vh);
  display: grid; place-items: center;
  padding: 8svh var(--pad);
  border-bottom: 1px solid var(--ring);
  background-image: url("assets/bg_logo.jpg");
  background-size:     cover;           
  background-repeat:   no-repeat;
  background-position: center center; 
}
.hero-inner { text-align: center; max-width: 1000px; }
.hero-title {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(48px, 9vw, 120px);
  line-height: 0.95;
  margin: 0 0 18px;
  letter-spacing: -1.5px;
}
.hero-kicker {
  margin: 0 0 26px;
  color: var(--muted);
  font-weight: 600;
  letter-spacing: 0.2px;
}
.cta {
  display: inline-block;
  font-weight: 700;
  padding: 12px 18px;
  border: 1px solid var(--ring);
  border-radius: 14px;
  color: var(--fg);
  text-decoration: none;
}
.cta:hover, .cta:focus { background: var(--ring); outline: none; }

/* ---- Sections ---- */
.content { max-width: var(--maxw); margin: 0 auto; padding: 0 var(--pad); }
.section { padding: clamp(48px, 12svh, 120px) 0; border-bottom: 1px solid var(--ring); }
.section-head h2 {
  font-family: "Space Grotesk", Inter, sans-serif;
  font-size: clamp(28px, 3.2vw, 44px);
  margin: 0 0 18px;
}
.prose p { margin: 0; font-size: clamp(16px, 1.2vw, 18px); color: var(--fg); }
.prose a { color: var(--fg); }

/* ---- Education ---- */
.edu-list {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
}
.edu-item {
  grid-column: span 6;
  padding: 16px; border: 1px solid var(--ring); border-radius: 16px; background: var(--card);
}
.edu-item h3 { margin: 0 0 6px; font-size: 1.1rem; }
.edu-meta { margin: 0; color: var(--muted); font-weight: 600; }
@media (max-width: 720px) {
  .edu-item { grid-column: 1 / -1; }
}

/* ---- Cards ---- */
.cards {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
}
.card {
  grid-column: span 4;
  padding: 16px; border: 1px solid var(--ring); border-radius: 16px; background: var(--card);
}
.card h3 { margin: 0 0 10px; font-size: 1.05rem; }
.tags { list-style: none; padding: 0; margin: -6px 0 0; display: flex; flex-wrap: wrap; gap: 8px; }
.tags li {
  border: 1px solid var(--ring); border-radius: 999px; padding: 6px 10px;
  font-size: 0.92rem; color: var(--muted); background: #0f0f0f;
}
@media (max-width: 980px) {
  .card { grid-column: span 6; }
}
@media (max-width: 720px) {
  .card { grid-column: 1 / -1; }
}

/* ---- Achievements ---- */
.achievements {
  display: grid; grid-template-columns: repeat(12, 1fr); gap: 16px;
}
.achievement {
  grid-column: span 4;
  padding: 16px; border: 1px solid var(--ring); border-radius: 16px; background: var(--card);
}
.achievement h3 { margin: 0 0 10px; font-size: 1.05rem; }
.achievement ul { margin: 0; padding-left: 18px; color: var(--muted); }
@media (max-width: 980px) {
  .achievement { grid-column: span 6; }
}
@media (max-width: 720px) {
  .achievement { grid-column: 1 / -1; }
}

/* ---- Footer ---- */
.site-footer { text-align: center; padding: 40px var(--pad); color: var(--muted); }

/* iframe */
.video-container {
position: relative;
  width: 100%;
  max-width: 1120px; /* Maximum width of your video */
  margin: 0 auto; /* Center horizontally */
  padding-bottom: 56.25%; /* 16:9 aspect ratio */
  height: 0;
}
  .video-container iframe {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
}

/* Link color */

a:link {
  color: #dfdfdf;
  background-color: transparent;
  text-decoration: none;
}

a:visited {
  color: #dedede;
  background-color: transparent;
  text-decoration: none;
}

a:hover {
  color: white;
  background-color: transparent;
text-decoration: none;
}

a:active {
  color: #dfdfdf;
  background-color: transparent;
 text-decoration: none;
}

/* social media icons */

.social-container {
  display: flex;
  justify-content: center;
  align-items: center;
  padding: 20px;
}

.wrapper {
  display: flex;
  flex-wrap: wrap; /* allows wrapping on small screens */
  justify-content: center;
  list-style: none;
  padding: 0;
  margin: 0;
  gap: 15px; /* spacing between icons */
}

.wrapper .icon {
  position: relative;
  background: #1a1a1a;
  border-radius: 50%;
  width: 55px;
  height: 55px;
  font-size: 20px;
  display: flex;
  justify-content: center;
  align-items: center;
  box-shadow: 0 10px 10px rgba(0, 0, 0, 0.1);
  cursor: pointer;
  transition: all 0.2s ease-in-out;
}

.wrapper .icon a {
  color: inherit;
  text-decoration: none;
  width: 100%;
  height: 100%;
  display: flex;
  justify-content: center;
  align-items: center;
}

/* Tooltip */
.wrapper .tooltip {
  position: absolute;
  top: -40px;
  font-size: 13px;
  background: #ffffff;
  color: #000000;
  padding: 4px 8px;
  border-radius: 5px;
  box-shadow: 0 5px 10px rgba(0, 0, 0, 0.15);
  opacity: 0;
  pointer-events: none;
  white-space: nowrap;
  transition: all 0.3s ease;
}

.wrapper .tooltip::before {
  content: "";
  position: absolute;
  bottom: -5px;
  left: 50%;
  transform: translateX(-50%) rotate(45deg);
  width: 8px;
  height: 8px;
  background: #ffffff;
}

.wrapper .icon:hover .tooltip {
  opacity: 1;
  top: -50px;
}

/* Hover colors */
.wrapper .artstation:hover,
.wrapper .artstation:hover .tooltip,
.wrapper .artstation:hover .tooltip::before {
  background: #1877f2;
  color: #fff;
}

.wrapper .behance:hover,
.wrapper .behance:hover .tooltip,
.wrapper .behance:hover .tooltip::before {
  background: #222;
  color: #fff;
}

.wrapper .linkedin:hover,
.wrapper .linkedin:hover .tooltip,
.wrapper .linkedin:hover .tooltip::before {
  background: #0e76a8;
  color: #fff;
}

.wrapper .instagram:hover,
.wrapper .instagram:hover .tooltip,
.wrapper .instagram:hover .tooltip::before {
  background: #e4405f;
  color: #fff;
}

.wrapper .youtube:hover,
.wrapper .youtube:hover .tooltip,
.wrapper .youtube:hover .tooltip::before {
  background: #cd201f;
  color: #fff;
}

.wrapper .twitter:hover,
.wrapper .twitter:hover .tooltip,
.wrapper .twitter:hover .tooltip::before {
  background: #222;
  color: #fff;
}

.wrapper .stack-exchange:hover,
.wrapper .stack-exchange:hover .tooltip,
.wrapper .stack-exchange:hover .tooltip::before {
  background: #39AE98;
  color: #fff;
}

/* 📱 Responsive scaling */
@media (max-width: 768px) {
  .wrapper .icon {
    width: 45px;
    height: 45px;
    font-size: 16px;
  }
  .wrapper {
    gap: 10px;
  }
}

@media (max-width: 480px) {
  .wrapper .icon {
    width: 40px;
    height: 40px;
    font-size: 14px;
  }
  .wrapper {
    gap: 8px;
  }
}