/* — Variables & Reset — */
:root {
    --bg: #ffffff;
    --text: #1d1d1f;
    --muted: #6e6e73;
    --accent: #0071e3;
    --card-shadow: rgba(0,0,0,0.08);
  }
  * { margin:0; padding:0; box-sizing:border-box; }
  body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen,
                 Ubuntu, Cantarell, "Open Sans", "Helvetica Neue", sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height:1.5;
  }
  
  /* — Sections — */
  .section {
    max-width: 900px;
    margin: 0 auto;
    padding: 4rem 1rem;
  }
  h2 {
    font-size: 2.5rem;
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--text);
  }
  
  /* — Hero — */
.hero-section {
  position: relative;
  height: 100vh;
  /* a base gray, with two large, diffused color glows */
  background: #f5f5f7;
  background-image:
    radial-gradient(
      circle at 30% 30%,
      rgba(0,113,227,0.15),
      transparent 60%
    ),
    radial-gradient(
      circle at 70% 70%,
      rgba(0,200,113,0.15),
      transparent 60%
    );
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  text-align: center;
  overflow: hidden;
}

  .hero-section::after {
    content: '';
    position: absolute; top:0; left:0;
    width:100%; height:100%;
    background: rgba(0,0,0,0.3);
  }
  .hero-section h1,
  .hero-subtitle,
  .hero-cta {
    position: relative;
    z-index:1;
  }
  .hero-section h1 {
    font-size: 4rem;
    font-weight: 600;
    color: #fff;
    margin-bottom: 1rem;
  }
  .hero-subtitle {
    font-size: 1.25rem;
    color: #f1f1f1;
    margin-bottom: 2rem;
  }
  .hero-cta {
    display: inline-block;
    font-size: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--accent);
    color: #fff;
    border-radius: 0.5rem;
    text-decoration: none;
    transition: background .3s, transform .3s;
  }
  .hero-cta:hover {
    background: darken(var(--accent),5%);
    transform: translateY(-3px);
  }

  /* — Projects Section Base — */
.projects-section {
    padding: 4rem 1rem;
    background: #fafafa;
  }
  .projects-section h2 {
    text-align: center;
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
    color: #1d1d1f;
  }
  
  /* — Tabs — */
  .project-tabs {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
  }
  .project-tabs button {
    background: transparent;
    border: none;
    padding: .5rem 1rem;
    font-size: 1rem;
    color: #6e6e73;
    cursor: pointer;
    position: relative;
  }
  .project-tabs button.active,
  .project-tabs button:hover {
    color: #0071e3;
  }
  .project-tabs button.active::after {
    content: '';
    position: absolute;
    bottom: -5px;
    left: 0; right: 0;
    height: 3px;
    background: #0071e3;
    border-radius: 2px;
  }
  
  /* — Horizontal Scroll Container — */
  .projects-container {
    display: flex;
    overflow-x: auto;
    scroll-snap-type: x mandatory;
    gap: 2rem;
    padding-bottom: 1rem;
    scrollbar-width: thin;
    scrollbar-color: #ccc transparent;
  }
  .projects-container::-webkit-scrollbar {
    height: 8px;
  }
  .projects-container::-webkit-scrollbar-thumb {
    background: #ccc;
    border-radius: 4px;
  }
  
  /* — Individual Project Cards — */
  .project {
    position: relative;
    flex: 0 0 80%;
    height: 50vh;
    background-size: cover;
    background-position: center;
    border-radius: 1rem;
    scroll-snap-align: center;
    box-shadow: 0 4px 16px rgba(0,0,0,0.08);
    transition: transform .3s, box-shadow .3s;
  }
  .project:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 24px rgba(0,0,0,0.12);
  }
  
  /* — Overlay Content on Hover — */
  .project-content {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    background: rgba(0,0,0,0.6);
    padding: 1rem;
    border-radius: .5rem;
    opacity: 0;
    transition: opacity .3s ease-in-out;
  }
  .project:hover .project-content {
    opacity: 1;
  }
  .project-content h3 {
    margin: 0 0 .5rem;
    color: #fff;
    font-size: 1.5rem;
  }
  .project-content p {
    margin: 0;
    color: #ddd;
    font-size: 1rem;
  }
  
  /* — Utility: Hide non-matching projects — */
  .project.hidden {
    display: none;
  }  
  
  /* — Grid & Cards — */
  .grid {
    display: grid;
    gap: 2rem;
    grid-template-columns: repeat(auto-fit, minmax(260px,1fr));
  }
  .card {
    background: #fff;
    padding: 2rem;
    border-radius: 1rem;
    box-shadow: 0 4px 16px var(--card-shadow);
    transition: box-shadow .3s, transform .3s;
  }
  .card:hover {
    box-shadow: 0 8px 24px var(--card-shadow);
    transform: translateY(-5px);
  }
  .card h3 {
    font-size: 1.5rem;
    margin-bottom: .5rem;
  }
  .card p {
    color: var(--muted);
  }
  
  /* — Timeline — */
  .timeline {
    list-style: none;
    border-left: 2px solid #e5e5e5;
    padding-left: 1.5rem;
  }
  .timeline li {
    position: relative;
    margin-bottom: 2rem;
    padding-left: 1rem;
  }
  .timeline li::before {
    content:'';
    position:absolute;
    top:0.5rem; left:-9px;
    width:12px; height:12px;
    background: var(--accent);
    border-radius:50%;
  }
  .timeline span {
    display:block;
    color: var(--muted);
    font-size:.9rem;
    margin-top:.25rem;
  }

  /* Slight spacing tweak for education list */
#education .simple-experience li {
  margin-bottom: 0.5rem;
}
  
  /* — Buttons — */
  .buttons {
    text-align: center;
  }
  .buttons a {
    display:inline-block;
    margin:.5rem;
    padding:.75rem 1.5rem;
    background: var(--accent);
    color:#fff;
    border-radius:.5rem;
    text-decoration:none;
    transition: background .3s, transform .3s;
  }
  .buttons a:hover {
    background: darken(var(--accent),7%);
    transform: translateY(-2px);
  }
  
  /* — Fade-in on scroll — */
  .fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity .6s ease-out, transform .6s ease-out;
  }
  .fade-in.visible {
    opacity: 1;
    transform: translateY(0);
  }
  
  /* — Utility — */
  a { color: var(--accent); text-decoration: none; }
  
  /* adjust darken(...) if you don’t have a preprocessor; simply pick a slightly darker hex */
  
  /* — 3D Tilt & Scale + Shimmer Overlay — */
.project {
    position: relative;
    perspective: 1000px;                   /* enable 3D space */
    overflow: hidden;                      /* contain shimmer */
    transition: transform .4s ease, box-shadow .4s ease;
    /* fallback color/gradient */
    background: linear-gradient(
      135deg,
      rgba(0,113,227,0.1),
      rgba(0,200,113,0.1)
    );
    background-size: cover;
    background-position: center;
  }
  
  /* scale up and tilt slightly */
  .project:hover {
    transform: scale(1.05) rotateY(5deg) rotateX(2deg);
    box-shadow: 0 12px 32px rgba(0,0,0,0.15);
  }
  
  /* shimmer pseudo-element */
  .project::before {
    content: "";
    position: absolute;
    top: 0; left: -100%;
    width: 100%; height: 100%;
    background: linear-gradient(
      120deg,
      rgba(255,255,255,0.2) 0%,
      rgba(255,255,255,0.05) 50%,
      rgba(255,255,255,0.2) 100%
    );
    transform: skewX(-20deg);
    transition: transform .8s ease-in-out;
    z-index: 2;
  }
  .project:hover::before {
    transform: translateX(300%) skewX(-20deg);
  }
  
  /* — Frosted-Glass Overlay on Content — */
  .project-content {
    position: absolute;
    bottom: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    padding: 1rem 1.5rem;
    background: rgba(255, 255, 255, 0.75);      /* light semi-opaque */
    backdrop-filter: blur(10px);                 /* frosted glass */
    border: 1px solid rgba(255, 255, 255, 0.4);   /* subtle white frame */
    border-radius: 0.75rem;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.1);
    opacity: 0;
    transition: opacity .3s ease-in-out .2s;
    z-index: 3;
  }
  
  .project:hover .project-content {
    opacity: 1;
  }
  
  .project-content h3 {
    margin-bottom: .5rem;
    font-size: 1.6rem;
    color: #1D1D1F;       /* near-black for high contrast */
  }
  
  .project-content p {
    margin: 0;
    font-size: 1rem;
    color: #4B4B4B;       /* dark gray for readability */
  }
  
  /* — Morphing Blob behind Hero — */
#blob {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 120vw;
  height: 120vh;
  transform: translate(-50%, -50%);
  z-index: 0;
  mix-blend-mode: multiply;
}
.hero-section h1,
.hero-subtitle,
.hero-cta {
  position: relative;
  z-index: 1;
}

/* — Cursor-driven 3D tilt on project cards — */
.project {
  transform-style: preserve-3d;
  transition: transform .1s ease-out, box-shadow .3s;
}
.project:hover {
  /* keep the shimmer/scale in place */
}
.project.tilt {
  will-change: transform;
}

/* on small viewports, disable tilt */
@media (max-width: 768px) {
  .project { transform: none !important; }
}

/* — Detailed bullets under each timeline item — */
.exp-details {
  margin: .5rem 0 0 1.5rem;
  list-style: disc;
  color: var(--muted);
  font-size: .95rem;
  line-height: 1.4;
}
.exp-details li {
  margin-bottom: .4rem;
}