/*
  Krish Shah – Futuristic dark portfolio (fixed + mobile optimized)
  Works with the exact index.html you pasted (nav-links + data-nav + has-fx).
*/

:root{
  --bg:#0b1020;
  --surface:#121a2e;
  --surface-2:#0f1628;

  --accent:#00bcd4;
  --accent-dark:#0099a8;

  --text-primary:#eef4ff;
  --text-secondary:#9aa6bf;

  --radius:12px;
  --radius-lg:18px;
  --max-width:1200px;

  --shadow:0 2px 10px rgba(0,0,0,.35);
  --shadow-lg:0 18px 50px rgba(0,0,0,.55);

  --transition:.28s ease;
  --glass:rgba(18,26,46,.72);

  font-family:'Inter',system-ui,-apple-system,Segoe UI,Roboto,Arial,sans-serif;
}

/* Reset */
*,*::before,*::after{box-sizing:border-box;}
html,body{margin:0;padding:0;}
html{scroll-behavior:smooth;}

body{
  background:var(--bg);
  color:var(--text-primary);
  font-size:16px;
  line-height:1.6;
  overflow-x:hidden;
  -webkit-font-smoothing:antialiased;
  text-rendering:optimizeLegibility;
}

/* Global futuristic background (never blocks clicks)
   + subtle VKG (nodes/edges)
*/
body::before{
  content:"";
  position:fixed;
  inset:0;
  z-index:0;
  pointer-events:none;
  background:
    /* glow */
    radial-gradient(circle at 18% 12%, rgba(0,188,212,.20), transparent 55%),
    radial-gradient(circle at 82% 78%, rgba(143,76,255,.16), transparent 58%),

    /* subtle VKG nodes */
    radial-gradient(circle at 22% 28%, rgba(255,255,255,.06) 1px, transparent 2px),
    radial-gradient(circle at 48% 42%, rgba(255,255,255,.05) 1px, transparent 2px),
    radial-gradient(circle at 66% 30%, rgba(255,255,255,.05) 1px, transparent 2px),
    radial-gradient(circle at 74% 62%, rgba(255,255,255,.04) 1px, transparent 2px),
    radial-gradient(circle at 38% 70%, rgba(255,255,255,.05) 1px, transparent 2px),

    /* subtle VKG edges */
    linear-gradient(115deg, rgba(255,255,255,.035), transparent 40%),
    linear-gradient(295deg, rgba(255,255,255,.03), transparent 42%),

    /* your grid */
    repeating-linear-gradient(135deg,
      rgba(255,255,255,.045) 0px,
      rgba(255,255,255,.045) 1px,
      transparent 1px,
      transparent 7px
    ),

    /* vignette */
    radial-gradient(circle at 50% 55%, rgba(0,0,0,0), rgba(0,0,0,.58) 72%);
}

a{color:var(--accent);text-decoration:none;transition:color var(--transition);}
a:hover{color:var(--accent-dark);text-decoration:underline;}

.container{
  max-width:var(--max-width);
  margin:0 auto;
  padding:0 1rem;
}

/* Keep all content above background */
header, main, footer{position:relative; z-index:3;}
main{margin-top:64px;}

/* ===========================
   Header / navigation
   =========================== */

header{
  position:fixed;
  top:0;left:0;
  width:100%;
  background:var(--glass);
  backdrop-filter:blur(12px);
  -webkit-backdrop-filter:blur(12px);
  border-bottom:1px solid rgba(255,255,255,.06);
  z-index:100;
}

header nav{
  display:flex;
  align-items:center;
  justify-content:space-between;
  gap:1rem;
  height:64px;
}

header nav .logo{
  font-weight:800;
  font-size:1.12rem;
  letter-spacing:.2px;
  color:var(--text-primary);
  text-decoration:none;
}

/* Desktop nav */
.nav-links{
  list-style:none;
  display:flex;
  align-items:center;
  gap:1.1rem;
  margin:0;
  padding:0;
}

.nav-links a{
  color:var(--text-secondary);
  font-weight:700;
  padding:.45rem .2rem;
  text-decoration:none;
}

.nav-links a:hover,
.nav-links a.active{
  color:var(--accent);
  text-decoration:none;
}

/* Mobile toggle */
.nav-toggle{
  display:none;
  width:44px;height:44px;
  border:1px solid rgba(255,255,255,.12);
  background:rgba(11,16,32,.35);
  border-radius:12px;
  cursor:pointer;
}

.nav-toggle span{
  display:block;
  width:18px;height:2px;
  background:rgba(238,244,255,.88);
  margin:4px auto;
  border-radius:999px;
}

/* ===========================
   Hero
   =========================== */

.hero{
  position:relative;
  padding:6rem 0 4.5rem;
  text-align:center;
  background:linear-gradient(180deg, rgba(18,26,46,.74), rgba(11,16,32,.92));
  border-bottom:1px solid rgba(255,255,255,.06);
}

.eyebrow{
  color:var(--text-secondary);
  letter-spacing:.08em;
  text-transform:uppercase;
  font-size:.82rem;
  margin:0 0 .7rem;
}

.hero h1{
  font-size:clamp(2.1rem, 6vw, 4rem);
  font-weight:900;
  margin:0 0 .65rem;
}

.hero .sub-headline{
  font-size:1.05rem;
  color:var(--text-secondary);
  margin:0 auto .7rem;
  max-width:760px;
}

.hero .intro{
  font-size:1rem;
  color:var(--text-secondary);
  max-width:720px;
  margin:.6rem auto 1.7rem;
}

.hero-actions{
  display:flex;
  justify-content:center;
  gap:.8rem;
  flex-wrap:wrap;
  margin-bottom:2.2rem;
}

.cta, .cta-secondary{
  display:inline-flex;
  align-items:center;
  justify-content:center;
  padding:.78rem 1.4rem;
  border-radius:var(--radius-lg);
  font-weight:800;
  text-decoration:none;
  min-height:44px;
  transition:transform var(--transition), background var(--transition), border-color var(--transition);
  transform:translateZ(0);
}

.cta{
  background:var(--accent);
  color:#06101a;
}
.cta:hover{
  background:var(--accent-dark);
  transform:translateY(-2px);
  text-decoration:none;
}

.cta-secondary{
  border:1px solid rgba(0,188,212,.35);
  background:rgba(0,188,212,.08);
  color:var(--text-primary);
}
.cta-secondary:hover{
  border-color:rgba(0,188,212,.55);
  transform:translateY(-2px);
  text-decoration:none;
}

.hero-stats{
  margin:0 auto;
  max-width:920px;
  display:grid;
  grid-template-columns:repeat(3, minmax(0, 1fr));
  gap:.8rem;
}

.stat-item{
  background:rgba(18,26,46,.62);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius-lg);
  padding:1rem .9rem;
  box-shadow:var(--shadow);
}

.stat-item .number{
  font-size:1.85rem;
  font-weight:900;
  color:var(--accent);
  line-height:1.1;
  margin-bottom:.2rem;
}

.stat-item .label{
  color:var(--text-secondary);
  font-size:.92rem;
}

/* ===========================
   Tooling / logo chips
   =========================== */

.tooling{ padding:3.5rem 0; }
.tooling h2{
  text-align:center;
  font-size:2rem;
  margin:0 0 .6rem;
}
.section-sub{
  text-align:center;
  max-width:720px;
  margin:0 auto 1.5rem;
  color:var(--text-secondary);
}

.logo-row{
  display:flex;
  flex-wrap:wrap;
  justify-content:center;
  gap:.9rem;
}

.logo-chip{
  display:inline-flex;
  align-items:center;
  gap:.55rem;
  padding:.75rem .9rem;
  border-radius:999px;
  background:rgba(18,26,46,.62);
  border:1px solid rgba(255,255,255,.08);
  box-shadow:var(--shadow);
  transition:transform var(--transition), border-color var(--transition), background var(--transition);
  user-select:none;
  min-height:44px;
}
.logo-chip:hover{
  transform:translateY(-2px);
  border-color:rgba(0,188,212,.35);
  background:rgba(18,26,46,.85);
  text-decoration:none;
}
.logo-chip img{
  width:18px;height:18px;
  display:block;
  filter:invert(1);
  opacity:.9;
}
.logo-chip span{
  color:var(--text-primary);
  font-weight:800;
  font-size:.95rem;
}

/* ===========================
   Skills / Projects
   =========================== */

.skills-section{ padding:4rem 0; }
.skills-section h2,
.projects-section h2{
  text-align:center;
  font-size:2.2rem;
  margin:0 0 2rem;
}

.skills-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(240px, 1fr));
  gap:1.5rem;
  list-style:none;
  padding:0;
  margin:0;
}

.skill-item{
  background:rgba(18,26,46,.70);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius-lg);
  padding:1.6rem;
  box-shadow:var(--shadow);
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.skill-item:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(0,188,212,.25);
}
.skill-item h3{
  font-size:1.15rem;
  margin:0 0 .55rem;
  color:var(--accent);
  font-weight:850;
}
.skill-item p{
  font-size:.95rem;
  color:var(--text-secondary);
  margin:0;
}

.projects-section{
  padding:4rem 0;
  background:linear-gradient(180deg, rgba(18,26,46,.55), rgba(11,16,32,.65));
  border-top:1px solid rgba(255,255,255,.06);
  border-bottom:1px solid rgba(255,255,255,.06);
}

.project-grid{
  display:grid;
  grid-template-columns:repeat(auto-fit, minmax(260px, 1fr));
  gap:2rem;
}

.project-card{
  background:rgba(11,16,32,.70);
  border:1px solid rgba(255,255,255,.06);
  border-radius:var(--radius-lg);
  overflow:hidden;
  display:flex;
  flex-direction:column;
  box-shadow:var(--shadow);
  transition:transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}
.project-card:hover{
  transform:translateY(-4px);
  box-shadow:var(--shadow-lg);
  border-color:rgba(0,188,212,.25);
}

.thumb{
  height:185px;
  display:flex;
  align-items:flex-end;
  justify-content:center;
  padding:1.2rem;
  position:relative;
  overflow:hidden;
  background:#121a2e;
}
.thumb::before{
  content:"";
  position:absolute;
  inset:-60%;
  background:
    radial-gradient(circle at 30% 20%, rgba(0,188,212,.55), transparent 55%),
    radial-gradient(circle at 70% 70%, rgba(143,76,255,.40), transparent 58%),
    radial-gradient(circle at 40% 80%, rgba(0,188,212,.20), transparent 55%);
  filter:blur(10px);
  animation:drift 12s ease-in-out infinite;
}
.thumb-inner{
  position:relative;
  z-index:1;
  font-size:1.1rem;
  font-weight:900;
  color:rgba(238,244,255,.92);
  letter-spacing:.02em;
}

.project-card .content{
  padding:1.2rem;
  flex:1;
  display:flex;
  flex-direction:column;
  gap:.6rem;
}
.project-card .content h3{
  margin:0;
  font-size:1.2rem;
  color:var(--accent);
  font-weight:850;
}
.project-card .content p{
  margin:0 0 .8rem;
  color:var(--text-secondary);
  font-size:.95rem;
}

.btn{
  align-self:flex-start;
  padding:.62rem 1rem;
  border-radius:var(--radius-lg);
  background:var(--accent);
  color:#06101a;
  font-weight:850;
  border:none;
  cursor:pointer;
  transition:transform var(--transition), background var(--transition);
  text-decoration:none;
  min-height:44px;
}
.btn:hover{
  background:var(--accent-dark);
  transform:translateY(-2px);
  text-decoration:none;
}

/* ===========================
   Footer
   =========================== */

footer{
  background:rgba(18,26,46,.58);
  backdrop-filter:blur(10px);
  -webkit-backdrop-filter:blur(10px);
  border-top:1px solid rgba(255,255,255,.06);
  text-align:center;
  padding:2rem 0;
  font-size:.92rem;
  color:var(--text-secondary);
}

/* ===========================
   Motion helpers
   =========================== */

.reveal{
  opacity:0;
  transform:translateY(18px);
  transition:opacity .7s ease, transform .7s ease;
  will-change:opacity,transform;
}
.reveal.active{
  opacity:1;
  transform:translateY(0);
}
.tilt{ transform-style:preserve-3d; }
.magnetic{ will-change:transform; }

@keyframes drift{
  0%,100%{ transform:translate3d(0,0,0) scale(1); }
  50%{ transform:translate3d(18px,-10px,0) scale(1.02); }
}

/* ===========================
   FX layers (NEVER block clicks)
   =========================== */

.has-fx .flow-bg,
.has-fx .cursor-glow{
  pointer-events:none;
}

.has-fx .flow-bg{
  position:fixed;
  inset:0;
  z-index:1;
}

.has-fx .flow-blob{
  position:absolute;
  width:520px;
  height:520px;
  border-radius:999px;
  filter:blur(44px);
  opacity:.26;
  animation:blobFloat 14s ease-in-out infinite;
}

.has-fx .blob-1{
  top:-160px; left:-160px;
  background:radial-gradient(circle at 30% 30%, rgba(0,188,212,.85), rgba(0,188,212,0) 60%);
  animation-duration:16s;
}
.has-fx .blob-2{
  bottom:-180px; right:-160px;
  background:radial-gradient(circle at 30% 30%, rgba(143,76,255,.85), rgba(143,76,255,0) 62%);
  animation-duration:18s;
}
.has-fx .blob-3{
  top:35%; left:62%;
  width:420px; height:420px;
  background:radial-gradient(circle at 30% 30%, rgba(0,188,212,.55), rgba(0,188,212,0) 62%);
  animation-duration:20s;
}

@keyframes blobFloat{
  0%,100%{ transform:translate3d(0,0,0) scale(1); }
  40%{ transform:translate3d(34px,-22px,0) scale(1.03); }
  70%{ transform:translate3d(-24px,18px,0) scale(.98); }
}

.has-fx .cursor-glow{
  position:fixed;
  width:380px;
  height:380px;
  border-radius:999px;
  z-index:2;
  opacity:0;
  background:radial-gradient(circle at center, rgba(0,188,212,.18), rgba(0,188,212,0) 62%);
  transform:translate(-50%,-50%);
  transition:opacity .25s ease;
}

/* Reduced motion */
@media (prefers-reduced-motion: reduce){
  html{ scroll-behavior:auto; }
  .reveal{ opacity:1; transform:none; transition:none; }
  .has-fx .flow-blob{ animation:none; }
}

/* ===========================
   Responsive (fix “broken on mobile”)
   =========================== */

@media (max-width: 900px){
  .hero-stats{ grid-template-columns:1fr; max-width:520px; }
}

@media (max-width: 768px){
  .nav-toggle{ display:inline-flex; align-items:center; justify-content:center; }

  /* Mobile nav panel (glass + blur, not opaque) */
  .nav-links{
    position:absolute;
    top:64px;
    left:.9rem;
    right:.9rem;
    display:none;
    flex-direction:column;
    gap:.65rem;
    padding:.9rem;

    background: rgba(11,16,32,0.75);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);

    border: 1px solid rgba(255,255,255,0.10);
    border-radius: var(--radius-lg);
    box-shadow: 0 24px 60px rgba(0,0,0,0.55);
  }

  /* OPEN state: stronger blur + slightly darker glass */
  .nav-links.open{
    display:flex;
    background: rgba(11,16,32,0.88);
    backdrop-filter: blur(18px);
    -webkit-backdrop-filter: blur(18px);
    box-shadow: 0 30px 80px rgba(0,0,0,0.65);
  }

  .nav-links li{ width:100%; }
  .nav-links a{
    display:block;
    width:100%;
    padding:.8rem .85rem;
    border-radius:12px;
    background:rgba(18,26,46,.45);
    border:1px solid rgba(255,255,255,.06);
  }
  .nav-links a:hover{
    background:rgba(0,188,212,.10);
    border-color:rgba(0,188,212,.22);
  }

  .hero{ padding:4.2rem 0 3.2rem; }
  .project-grid{ grid-template-columns:1fr; gap:1.2rem; }
  .skills-grid{ grid-template-columns:1fr; gap:1.1rem; }
}

@media (max-width: 420px){
  body{ font-size:15px; }
  .cta, .cta-secondary{ width:100%; }
}

/* ===========================
   Contact page hard-fix
   =========================== */

.page{
  padding: 5rem 0;
}

.page .container{
  max-width: 980px;
}

.page-lead{
  max-width: 780px;
  color: var(--text-secondary);
  margin-bottom: 1.4rem;
}

/* Make form vertical + full width inputs */
.contact-form{
  max-width: 760px;
  margin: 1.2rem auto 0;
  display: block;
}

.contact-form label{
  display: block;
  margin: 0.65rem 0 0.35rem;
  font-weight: 750;
  color: var(--text-primary);
}

.contact-form input,
.contact-form textarea{
  display: block;
  width: 100% !important;
  max-width: 100% !important;
  padding: 0.78rem 0.9rem;
  border-radius: var(--radius);
  border: 1px solid rgba(255,255,255,0.10);
  background: rgba(11,16,32,0.55);
  color: var(--text-primary);
  font-size: 1rem;
}

.contact-form textarea{
  resize: vertical;
  min-height: 160px;
}

.contact-form input:focus,
.contact-form textarea:focus{
  outline: none;
  border-color: rgba(0,188,212,0.55);
  box-shadow: 0 0 0 3px rgba(0,188,212,0.15);
}

/* Ensure the submit button looks like the rest of the site */
.contact-form .btn{
  margin-top: 1rem;
}

/* Mobile spacing */
@media (max-width: 768px){
  .page{ padding: 4rem 0; }
  .contact-form{ padding: 0; }
}