:root{
  --bg: #07070700;
  --card: #0f0f0f00;
  --accent: #7a0f0f; /* dark red */
  --text: #f5f5f5;
  --muted: rgba(255,255,255,0.6);
  --neon: #ff2d2d;
  --glass: rgba(255,255,255,0.04);
  --radius: 6px; /* sharper corners */
}

*{box-sizing:border-box}

html,body{height:100%;margin:0;font-family:Poppins, Inter, system-ui, -apple-system, 'Helvetica Neue', Arial;color:var(--text);background-color: #000}

/* page background image (put teslabg.jpeg into public/) */
body::before{
  content:'';
  position:fixed;inset:0;z-index:-2;
  /* use absolute path so the file served from /public is picked up reliably */
  background-image: url('/teslabg.jpeg'), url('/teslabg.svg');
  background-size: cover, cover;
  background-position: center center, center center;
  background-repeat: no-repeat, no-repeat;
  background-attachment: fixed;
  filter: saturate(0.92) contrast(0.95) brightness(0.48);
  transform: scale(1.02);
}

/* subtle animated gradient overlay */
body::after{
  content:'';position:fixed;inset:0;z-index:-1;background:linear-gradient(120deg, rgba(122,15,15,0.06), rgba(10,10,10,0.3));mix-blend-mode: overlay;animation: bgShift 18s linear infinite;}

@keyframes bgShift{0%{filter: hue-rotate(0deg)}50%{filter: hue-rotate(20deg)}100%{filter: hue-rotate(0deg)}}


.container{max-width:820px;margin:6vh auto;background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));padding:36px;border-radius:var(--radius);box-shadow:0 20px 60px rgba(0,0,0,0.65);border:1px solid rgba(255,255,255,0.04);backdrop-filter: blur(6px);-webkit-backdrop-filter: blur(6px);position:relative;overflow:hidden}

/* neon rim (sharper) */
.container::before{content:'';position:absolute;inset:0;border-radius:var(--radius);padding:1px;background:linear-gradient(90deg, rgba(255,45,45,0.95), rgba(150,20,20,0.8));-webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);mask-composite: exclude;pointer-events:none;opacity:0.95;filter: blur(6px);}

/* subtle inner glow accent */
.container::after{content:'';position:absolute;left:-20%;top:-10%;width:60%;height:60%;background:radial-gradient(circle at 20% 20%, rgba(255,45,45,0.12), transparent 20%), radial-gradient(circle at 80% 80%, rgba(10,10,10,0.3), transparent 40%);pointer-events:none}
.header-row{display:flex;align-items:flex-start;justify-content:space-between;margin-bottom:18px;gap:18px}
.brand-group{display:flex;flex-direction:column;flex:1;min-width:0}
.brand{margin:0;font-size:34px;letter-spacing:1px;font-weight:800;background:linear-gradient(90deg,#fff, rgba(255,255,255,0.8));-webkit-background-clip:text;background-clip:text;color:transparent;line-height:1.1;font-family:'Orbitron', 'Poppins', sans-serif;text-transform:uppercase;letter-spacing:3px}
.subtitle{margin:6px 0 0;color:var(--muted);font-size:14px;max-width:60%;line-height:1.5}
.lang-select select{background:transparent;color:var(--text);border:1px solid rgba(255,255,255,0.06);padding:8px;border-radius:var(--radius);min-width:140px;appearance:none}

.form{margin-top:6px}
.field{display:block;font-size:13px;margin-bottom:14px}
.label-text{display:block;margin-bottom:8px;color:var(--muted);font-size:13px}
.form input,.form textarea{width:100%;padding:12px;border-radius:var(--radius);border:1px solid rgba(255,255,255,0.04);background:linear-gradient(180deg, rgba(255,255,255,0.02), rgba(255,255,255,0.01));color:var(--text);outline:none;transition:box-shadow .12s,transform .06s}
.form input:focus,.form textarea:focus{box-shadow:0 14px 40px rgba(122,15,15,0.12), 0 4px 12px rgba(0,0,0,0.6);transform:translateY(-2px)}
.form input::placeholder,.form textarea::placeholder{color:rgba(255,255,255,0.35)}
.form textarea{resize:vertical}
.btn{width:100%;padding:14px;border-radius:var(--radius);border:none;background:linear-gradient(90deg,var(--neon),#800000);color:#0b0b0b;font-weight:800;cursor:pointer;margin-top:8px;font-size:15px;box-shadow:0 6px 24px rgba(255,45,45,0.12);letter-spacing:0.6px;border-left:2px solid rgba(255,255,255,0.02);border-top:2px solid rgba(255,255,255,0.02)}
.btn:active{transform:translateY(1px)}
.btn:hover{transform:translateY(-2px);box-shadow:0 18px 60px rgba(255,45,45,0.18);filter:brightness(1.02)}
.msg{margin-top:12px;text-align:center;color:var(--text);font-weight:700}
.foot{text-align:center;margin-top:18px;font-size:13px;color:var(--muted)}

@media (max-width:720px){
  body::before{background-position:center center;background-size:cover}
  .container{margin:4vh 12px;padding:20px}
  .header-row{flex-direction:row;align-items:flex-start;justify-content:space-between;gap:12px;margin-bottom:28px}
  .brand-group{flex:1;min-width:0}
  .subtitle{max-width:100%}
  .lang-select{margin-left:auto;flex-shrink:0}
  .lang-select select{width:100%;min-width:0;max-width:120px}
  .brand{font-size:26px}
  .field{margin-bottom:12px}
  .label-text{font-size:12px}
  .form input,.form textarea{padding:11px 12px}
  .btn{padding:13px 14px}
  .foot{font-size:12px}
}

@media (max-width:420px){
  .container{padding:18px 16px}
  .brand{font-size:24px}
  .subtitle{font-size:13px}
  .msg{font-size:14px}
}

/* accessibility */
.vis-hide{position:absolute!important;height:1px;width:1px;overflow:hidden;clip:rect(1px,1px,1px,1px);white-space:nowrap}