/* =========================================================
   RIA IYER — PORTFOLIO
   Retro pixel / arcade theme
   ========================================================= */

@import url('https://fonts.googleapis.com/css2?family=Press+Start+2P&family=VT323&display=swap');

:root{
  --bg-0:#0a0818;
  --bg-1:#12102a;
  --bg-2:#1b1740;
  --panel:#171331;
  --line:#3a3466;
  --cyan:#4deeea;
  --pink:#f92aad;
  --yellow:#ffe45e;
  --green:#37ffb0;
  --purple:#b967ff;
  --text:#e8e6f7;
  --text-dim:#9a93c9;
  --shadow-hard: 4px 4px 0 rgba(0,0,0,.6);
  --radius: 0px;
  --font-pixel: 'Press Start 2P', monospace;
  --font-body: 'VT323', monospace;
}

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

body{
  margin:0;
  background:
    radial-gradient(circle at 20% 0%, #241e52 0%, transparent 45%),
    radial-gradient(circle at 85% 15%, #2a1a4a 0%, transparent 40%),
    var(--bg-0);
  color:var(--text);
  font-family:var(--font-body);
  font-size:20px;
  line-height:1.5;
  min-height:100vh;
  position:relative;
  overflow-x:hidden;
}

/* -------- starfield -------- */
#starfield{
  position:fixed; inset:0; z-index:-2; pointer-events:none;
}

/* -------- CRT scanline overlay -------- */
body::before{
  content:"";
  position:fixed; inset:0;
  z-index:50;
  pointer-events:none;
  background:repeating-linear-gradient(
    to bottom,
    rgba(255,255,255,0.035) 0px,
    rgba(255,255,255,0.035) 1px,
    transparent 2px,
    transparent 3px
  );
  mix-blend-mode:overlay;
}
body::after{
  content:"";
  position:fixed; inset:0;
  z-index:51;
  pointer-events:none;
  background:radial-gradient(ellipse at center, transparent 55%, rgba(0,0,0,.45) 100%);
}

img{ image-rendering:pixelated; image-rendering:-moz-crisp-edges; }
img.smooth{ image-rendering:auto; }

a{ color:var(--cyan); text-decoration:none; }
a:hover{ color:var(--yellow); }

h1,h2,h3,h4{
  font-family:var(--font-pixel);
  line-height:1.6;
  letter-spacing:.5px;
}

::selection{ background:var(--pink); color:#fff; }

/* scrollbar */
::-webkit-scrollbar{ width:12px; }
::-webkit-scrollbar-track{ background:var(--bg-1); }
::-webkit-scrollbar-thumb{ background:var(--purple); border:2px solid var(--bg-1); }

/* =========================================================
   LAYOUT
   ========================================================= */
.wrap{ max-width:1100px; margin:0 auto; padding:0 24px; }

/* -------- HUD / nav bar -------- */
.hud{
  position:sticky; top:0; z-index:40;
  background:rgba(10,8,24,.88);
  backdrop-filter:blur(6px);
  border-bottom:3px solid var(--purple);
}
.hud-inner{
  position:relative;
  width:100%; padding:14px clamp(20px, 4vw, 64px) 0;
  display:grid; grid-template-columns:1fr auto 1fr; align-items:end; column-gap:16px;
}
.hud-logo{
  grid-column:1; justify-self:start;
  font-family:var(--font-pixel);
  font-size:clamp(9px, 1.2vw, 12px);
  color:var(--yellow);
  text-shadow:2px 2px 0 #000;
  white-space:nowrap;
  flex-shrink:0;
}
.hud-logo .blink{ animation:blink 1.4s steps(1) infinite; }
@keyframes blink{ 50%{ opacity:0; } }

.hud-nav{
  grid-column:2; justify-self:center;
  display:flex; gap:clamp(6px, 2.4vw, 30px); flex-wrap:nowrap; justify-content:center; min-width:0;
}
.hud-nav a{
  font-family:var(--font-pixel);
  font-size:clamp(8px, 1.05vw, 13px);
  text-transform:uppercase;
  letter-spacing:.5px;
  white-space:nowrap;
  color:var(--text);
  padding:clamp(10px,1.6vw,16px) clamp(12px,2.2vw,24px);
  border:2px solid transparent;
  position:relative;
}
.hud-nav a:hover, .hud-nav a.active{
  color:var(--bg-0);
  background:var(--cyan);
  box-shadow:var(--shadow-hard);
}
.hud-nav a.active{ background:var(--pink); }

.nav-toggle{
  grid-column:3; justify-self:end;
  display:none;
  background:none; border:2px solid var(--cyan); color:var(--cyan);
  font-family:var(--font-pixel); font-size:12px; padding:8px 10px; cursor:pointer;
}

/* =========================================================
   BUTTONS
   ========================================================= */
.btn{
  display:inline-block;
  font-family:var(--font-pixel);
  font-size:11px;
  color:var(--bg-0);
  background:var(--cyan);
  padding:14px 18px;
  border:none;
  box-shadow:var(--shadow-hard);
  cursor:pointer;
  transition:transform .08s ease, box-shadow .08s ease;
}
.btn:hover{ color:var(--bg-0); background:var(--yellow); }
.btn:active{ transform:translate(4px,4px); box-shadow:0 0 0 rgba(0,0,0,.6); }
.btn.pink{ background:var(--pink); color:#fff; }
.btn.pink:hover{ background:var(--yellow); color:var(--bg-0); }
.btn.ghost{
  background:transparent; color:var(--cyan); border:2px solid var(--cyan);
  box-shadow:none;
}
.btn.ghost:hover{ background:var(--cyan); color:var(--bg-0); }
.btn-row{ display:flex; gap:12px; flex-wrap:wrap; margin-top:18px; }

/* =========================================================
   PIXEL PANEL / CARD
   ========================================================= */
.panel{
  background:var(--panel);
  border:3px solid var(--line);
  box-shadow:var(--shadow-hard);
  padding:28px;
  position:relative;
}
.panel::before{
  content:"";
  position:absolute; inset:0;
  border:1px solid rgba(255,255,255,.04);
  pointer-events:none;
}
.corner-tag{
  position:absolute; top:-14px; left:16px;
  background:var(--pink); color:#fff;
  font-family:var(--font-pixel); font-size:10px;
  padding:6px 10px;
  box-shadow:var(--shadow-hard);
}

/* =========================================================
   HERO (home)
   ========================================================= */
.hero{
  min-height:86vh;
  display:flex; flex-direction:column; align-items:center; justify-content:center;
  text-align:center;
  padding:60px 20px;
  position:relative;
}
.hero-title{
  font-size:clamp(28px, 6vw, 56px);
  margin:0 0 18px;
  color:var(--yellow);
  text-shadow:4px 4px 0 var(--pink), 8px 8px 0 rgba(0,0,0,.5);
  animation:float 3.5s ease-in-out infinite;
}
@keyframes float{ 0%,100%{ transform:translateY(0);} 50%{ transform:translateY(-8px);} }

.hero-sub{
  font-family:var(--font-body);
  font-size:28px;
  color:var(--cyan);
  max-width:640px;
  margin:0 0 8px;
}
.hero-tags{
  font-family:var(--font-pixel);
  font-size:11px;
  color:var(--text-dim);
  margin:18px 0 30px;
  line-height:2.4;
}
.hero-tags span{
  background:var(--bg-2);
  border:2px solid var(--purple);
  padding:6px 10px;
  margin:0 4px;
  display:inline-block;
}

.press-start{
  font-family:var(--font-pixel);
  font-size:13px;
  color:var(--yellow);
  margin-top:46px;
  animation:blink 1s steps(1) infinite;
}

/* floor grid under hero */
.floor{
  position:absolute; left:0; right:0; bottom:0; height:220px;
  background-image:
    linear-gradient(var(--purple) 1px, transparent 1px),
    linear-gradient(90deg, var(--purple) 1px, transparent 1px);
  background-size:48px 48px;
  opacity:.35;
  transform:perspective(300px) rotateX(60deg);
  transform-origin:bottom;
  pointer-events:none;
  mask-image:linear-gradient(to top, black, transparent);
}

/* =========================================================
   SECTIONS / GENERIC
   ========================================================= */
main{ position:relative; z-index:1; padding-bottom:80px; }
.section{ padding:64px 0; }
.section-title{
  font-size:22px; color:var(--yellow);
  text-shadow:3px 3px 0 rgba(0,0,0,.6);
  margin-bottom:8px;
}
.section-sub{ color:var(--text-dim); margin-bottom:34px; font-size:22px; }

.page-header{
  padding:70px 0 30px;
  text-align:center;
}
.page-header h1{
  font-size:clamp(22px,4vw,32px);
  color:var(--yellow);
  text-shadow:3px 3px 0 var(--pink);
}
.page-header p{ color:var(--text-dim); font-size:24px; max-width:640px; margin:14px auto 0; }

/* =========================================================
   GRIDS / CARDS (project cartridges)
   ========================================================= */
.grid{
  display:grid;
  grid-template-columns:repeat(auto-fill, minmax(260px,1fr));
  gap:22px;
}
.card{
  background:var(--panel);
  border:3px solid var(--line);
  box-shadow:var(--shadow-hard);
  overflow:hidden;
  display:flex; flex-direction:column;
  transition:transform .12s ease, border-color .12s ease;
  text-decoration:none;
  color:var(--text);
}
.card:hover{
  transform:translate(-3px,-3px);
  border-color:var(--cyan);
  box-shadow:7px 7px 0 rgba(0,0,0,.6);
}
.card-thumb{
  aspect-ratio:16/10;
  background:var(--bg-2) center/cover no-repeat;
  border-bottom:3px solid var(--line);
  display:flex; align-items:center; justify-content:center;
  color:var(--text-dim); font-family:var(--font-pixel); font-size:10px;
}
.card-body{ padding:16px 18px 20px; flex:1; display:flex; flex-direction:column; }
.card-title{ font-family:var(--font-pixel); font-size:13px; color:var(--cyan); margin:0 0 10px; }
.card:hover .card-title{ color:var(--yellow); }
.card-meta{ font-size:16px; color:var(--text-dim); margin-bottom:10px; }
.card-desc{ font-size:19px; color:var(--text); flex:1; }
.card-tags{ margin-top:14px; display:flex; gap:6px; flex-wrap:wrap; }
.tag{
  font-family:var(--font-pixel); font-size:9px;
  background:var(--bg-2); color:var(--purple);
  border:1px solid var(--purple);
  padding:4px 6px;
}

.era-title{
  font-family:var(--font-pixel);
  font-size:14px;
  color:var(--pink);
  margin:50px 0 18px;
  border-left:6px solid var(--pink);
  padding-left:12px;
}
.era-title:first-child{ margin-top:0; }

/* =========================================================
   PROJECT DETAIL PAGE
   ========================================================= */
.project-hero{
  display:grid; grid-template-columns:1.1fr 1fr; gap:34px;
  align-items:start;
  margin-bottom:36px;
}
@media (max-width:820px){ .project-hero{ grid-template-columns:1fr; } }

.project-media{
  border:3px solid var(--line);
  box-shadow:var(--shadow-hard);
  background:var(--bg-2);
  overflow:hidden;
}
.project-media img{ width:100%; display:block; }
.project-media .ratio{ position:relative; width:100%; padding-top:56.25%; }
.project-media .ratio iframe{
  position:absolute; inset:0; width:100%; height:100%; border:0;
}

.project-info h1{
  font-size:24px; color:var(--yellow); text-shadow:3px 3px 0 var(--pink);
  margin-top:0;
}
.meta-line{
  font-family:var(--font-pixel); font-size:10px; color:var(--text-dim);
  line-height:2.2;
  margin-bottom:18px;
}
.meta-line b{ color:var(--green); }

.prose{ font-size:22px; }
.prose p{ margin:0 0 16px; }

.crumb{
  font-family:var(--font-pixel); font-size:10px; color:var(--text-dim);
  margin-bottom:22px; display:block;
}
.crumb a{ color:var(--purple); }

.project-nav{
  display:flex; justify-content:space-between; margin-top:56px;
  border-top:2px dashed var(--line); padding-top:24px;
  font-family:var(--font-pixel); font-size:10px;
}

/* =========================================================
   GALLERY / LIGHTBOX (archive page)
   ========================================================= */
.gallery{
  display:grid; grid-template-columns:repeat(auto-fill,minmax(200px,1fr));
  gap:16px;
}
.gallery figure{
  margin:0; background:var(--panel); border:3px solid var(--line);
  cursor:zoom-in; overflow:hidden;
  transition:transform .12s ease, border-color .12s ease;
}
.gallery figure:hover{ transform:translate(-2px,-2px); border-color:var(--pink); }
.gallery img{ width:100%; aspect-ratio:1/1; object-fit:cover; display:block; }
.gallery figcaption{
  font-size:15px; color:var(--text-dim); padding:8px 10px;
  font-family:var(--font-body);
}

#lightbox{
  position:fixed; inset:0; background:rgba(4,3,12,.92);
  display:none; align-items:center; justify-content:center;
  z-index:200; padding:40px; flex-direction:column; gap:16px;
}
#lightbox.open{ display:flex; }
#lightbox img{ max-width:90vw; max-height:75vh; border:4px solid var(--cyan); image-rendering:auto; }
#lightbox .lb-cap{ max-width:640px; text-align:center; color:var(--text); font-size:20px; }
#lightbox .lb-close{
  position:absolute; top:24px; right:28px;
  font-family:var(--font-pixel); color:var(--pink); background:none; border:2px solid var(--pink);
  padding:8px 12px; cursor:pointer; font-size:14px;
}
#lightbox .lb-close:hover{ background:var(--pink); color:#fff; }

/* =========================================================
   ABOUT PAGE / STAT CARD
   ========================================================= */
.about-grid{ display:grid; grid-template-columns:280px 1fr; gap:36px; }
@media (max-width:760px){ .about-grid{ grid-template-columns:1fr; } }

.stat-card{
  background:var(--panel); border:3px solid var(--purple); box-shadow:var(--shadow-hard);
  padding:22px; text-align:center;
}
.stat-card .avatar{
  width:120px; height:120px; margin:0 auto 16px;
  background:linear-gradient(135deg, var(--pink), var(--purple), var(--cyan));
  border:3px solid #fff2;
  display:flex; align-items:center; justify-content:center;
  font-family:var(--font-pixel); font-size:32px; color:#fff;
}
.stat-card h2{ font-size:15px; color:var(--yellow); margin:6px 0 2px; }
.stat-card .role{ color:var(--cyan); font-size:18px; margin-bottom:16px; }
.stat-list{ text-align:left; font-family:var(--font-pixel); font-size:10px; line-height:2.6; }
.stat-list .bar{
  background:var(--bg-2); height:10px; margin-top:4px; position:relative; border:1px solid var(--line);
}
.stat-list .bar i{
  position:absolute; inset:0; background:linear-gradient(90deg,var(--green),var(--cyan));
  width:var(--w,80%);
}

/* =========================================================
   RESUME
   ========================================================= */
.resume-embed{
  border:3px solid var(--line); box-shadow:var(--shadow-hard); background:#fff;
  width:100%; height:80vh;
}

/* =========================================================
   CONTACT
   ========================================================= */
.form-row{ margin-bottom:18px; display:flex; flex-direction:column; gap:6px; }
.form-row label{ font-family:var(--font-pixel); font-size:10px; color:var(--cyan); }
.form-row input, .form-row textarea{
  background:var(--bg-1); border:2px solid var(--line); color:var(--text);
  font-family:var(--font-body); font-size:20px; padding:12px 14px;
}
.form-row input:focus, .form-row textarea:focus{ outline:none; border-color:var(--cyan); }
.form-row textarea{ resize:vertical; min-height:140px; }

.contact-links{ display:flex; gap:14px; flex-wrap:wrap; margin-top:26px; }

/* =========================================================
   FOOTER
   ========================================================= */
footer{
  border-top:3px solid var(--purple);
  padding:30px 0 90px;
  text-align:center;
  color:var(--text-dim);
  font-family:var(--font-pixel);
  font-size:10px;
  position:relative; z-index:1;
}
footer a{ color:var(--pink); }

/* =========================================================
   PAGE TRANSITION
   ========================================================= */
::view-transition-old(root){ animation: pixel-out .35s ease forwards; }
::view-transition-new(root){ animation: pixel-in .35s ease forwards; }
@keyframes pixel-out{ to{ opacity:0; transform:scale(1.02);} }
@keyframes pixel-in{ from{ opacity:0; transform:scale(.98);} }

body.page-enter{ animation:fadeIn .4s ease; }
@keyframes fadeIn{ from{ opacity:0; } to{ opacity:1; } }

/* =========================================================
   RESPONSIVE NAV
   ========================================================= */
@media (max-width:900px){
  .nav-toggle{ display:inline-block; }
  .hud-nav{
    position:absolute; top:100%; left:0; right:0; transform:none;
    background:var(--bg-1); border-bottom:3px solid var(--purple);
    flex-direction:column; align-items:center; justify-content:center;
    padding:14px 24px 20px;
    margin-left:0; flex:none;
    display:none;
  }
  .hud-nav.open{ display:flex; }
  .hud-nav a{ width:100%; max-width:280px; text-align:center; }
  .hud-inner{ position:relative; flex-wrap:nowrap; }
}

/* misc helpers */
.center{ text-align:center; }
.muted{ color:var(--text-dim); }
.mt-lg{ margin-top:48px; }
.two-col{ display:grid; grid-template-columns:1fr 1fr; gap:24px; }
@media (max-width:700px){ .two-col{ grid-template-columns:1fr; } }

/* mode switch pill (fixed, independent of nav layout) */
.mode-switch{
  position:fixed; right:clamp(12px,2vw,24px); bottom:clamp(12px,2vw,24px);
  z-index:60;
  font-family:var(--font-pixel);
  font-size:9px;
  text-transform:uppercase;
  letter-spacing:.5px;
  color:var(--bg-0);
  background:var(--yellow);
  padding:10px 14px;
  border:2px solid #000;
  box-shadow:var(--shadow-hard);
  text-decoration:none;
  white-space:nowrap;
  max-width:44vw;
  overflow:hidden;
  text-overflow:ellipsis;
}
.mode-switch:hover{ background:var(--cyan); }
@media (max-width:600px){
  .mode-switch{ font-size:8px; padding:8px 10px; }
}

/* back-to-start pill (fixed, opposite corner from mode-switch) */
.back-start{
  position:fixed; left:clamp(12px,2vw,24px); bottom:clamp(12px,2vw,24px);
  z-index:60;
  font-family:var(--font-pixel);
  font-size:9px;
  text-transform:uppercase;
  letter-spacing:.5px;
  color:var(--text);
  background:var(--bg-1);
  padding:10px 14px;
  border:2px solid var(--purple);
  box-shadow:var(--shadow-hard);
  text-decoration:none;
  white-space:nowrap;
  max-width:44vw;
  overflow:hidden;
  text-overflow:ellipsis;
}
.back-start:hover{ background:var(--purple); color:#fff; }
@media (max-width:600px){
  .back-start{ font-size:8px; padding:8px 10px; }
}