:root{
  --bg:#0d1117;
  --panel:rgba(22,27,34,.85);
  --border:#30363d;
  --text:#c9d1d9;
  --muted:#8b949e;
  --accent:#2f81f7;
  --glow:rgba(47,129,247,.35);
}
*{box-sizing:border-box}
body{
  margin:0;
  font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto;
  color:var(--text);
  background:
    linear-gradient(180deg,rgba(0,0,0,.65),rgba(0,0,0,.9)),
    url("../assets/bg.jpg") center/cover no-repeat,
    var(--bg);
  min-height:100vh;
}

/* ===== LOGIN ===== */
#loginScreen{
  position:fixed; inset:0;
  display:flex; align-items:center; justify-content:center;
  backdrop-filter:blur(6px);
}
.login-box{
  background:var(--panel);
  border:1px solid var(--border);
  padding:28px;
  width:360px;
  border-radius:14px;
  box-shadow:0 0 40px rgba(0,0,0,.6);
  text-align:center;
}
.login-box img{
  width:64px;
  margin-bottom:10px;
}
.login-box input{
  width:100%;
  padding:10px;
  margin-bottom:12px;
  background:#0d1117;
  border:1px solid var(--border);
  border-radius:8px;
  color:var(--text);
}
.login-box button{
  width:100%;
  padding:10px;
  background:linear-gradient(135deg,var(--accent),#58a6ff);
  border:none;
  border-radius:8px;
  font-weight:600;
  cursor:pointer;
  box-shadow:0 0 18px var(--glow);
}

/* ===== DASHBOARD ===== */
#dashboard{display:none}
.header{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 20px;
  border-bottom:1px solid var(--border);
  backdrop-filter:blur(8px);
}
.header-left{
  display:flex;
  align-items:center;
  gap:10px;
}
.header img{width:34px}
.container{
  padding:24px;
  max-width:1200px;
  margin:auto;
}

/* GRID */
.grid{
  display:grid;
  grid-template-columns:2fr 1fr;
  gap:22px;
}
@media(max-width:900px){.grid{grid-template-columns:1fr}}

/* CARD */
.card{
  background:var(--panel);
  border:1px solid var(--border);
  border-radius:16px;
  padding:18px;
  box-shadow:0 12px 30px rgba(0,0,0,.4);
  transition:transform .4s, box-shadow .4s;
}
.card:hover{
  transform:perspective(800px) translateY(-4px) rotateX(2deg);
  box-shadow:0 20px 45px rgba(0,0,0,.6);
}

/* REPO */
.repo{
  padding:14px;
  border:1px solid var(--border);
  border-radius:12px;
  margin-bottom:12px;
  background:#0d1117;
}
.repo b{color:var(--accent)}
.repo span{display:block;color:var(--muted);font-size:13px}

/* NEWS */
.news-box{
  display:none;
  animation:slide 1s ease;
}
.news-box.active{display:block}
@keyframes slide{
  from{opacity:0;transform:translateX(20px)}
  to{opacity:1}
}

/* STATS */
.stats{
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:14px;
}
.stat{
  background:#0d1117;
  border:1px solid var(--border);
  padding:14px;
  border-radius:14px;
  text-align:center;
}
.stat b{
  display:block;
  font-size:20px;
  color:#fff;
}

/* FOOTER */
.footer{
  text-align:center;
  padding:26px;
  color:var(--muted);
  font-size:13px;
}

/* ===== RESUME LEARNING ===== */
.resume-card{
  display:flex;
  justify-content:space-between;
  align-items:center;
  background:linear-gradient(135deg,#1f6feb,#0d1117);
  overflow:hidden;
  position:relative;
}
.resume-left p{
  color:#c9d1d9;
  margin:6px 0 12px;
}
.resume-btn{
  background:#fff;
  color:#000;
  border:none;
  padding:10px 16px;
  border-radius:8px;
  font-weight:600;
  cursor:pointer;
}
.resume-btn:hover{transform:scale(1.05)}

.resume-right{
  position:relative;
}
.resume-icon{
  font-size:48px;
  position:relative;
  z-index:2;
}
.pulse-ring{
  position:absolute;
  width:80px;height:80px;
  border-radius:50%;
  background:rgba(255,255,255,0.15);
  animation:pulse 2s infinite;
}
@keyframes pulse{
  0%{transform:scale(.8);opacity:1}
  100%{transform:scale(1.5);opacity:0}
}

/* ===== ACHIEVEMENTS ===== */
.achievements-card{
  margin-top:20px;
}
.streaks{
  display:grid;
  grid-template-columns:repeat(auto-fit,minmax(140px,1fr));
  gap:14px;
}
.streak{
  background:#0d1117;
  border:1px solid var(--border);
  border-radius:12px;
  padding:14px;
  text-align:center;
  transition:.3s;
}
.streak .icon{
  font-size:28px;
  margin-bottom:6px;
}
.streak span{
  font-size:13px;
  color:var(--muted);
}
.streak.locked{
  opacity:.4;
}
.streak.unlocked{
  border-color:#2f81f7;
  box-shadow:0 0 15px rgba(47,129,247,.5);
  transform:translateY(-3px);
}

.streak-hint{
  margin-top:14px;
  font-size:14px;
  color:#8b949e;
}