:root {
  --bg:#0f1724;
  --card:#0b1220;
  --accent:#06b6d4;
  --muted:#818fa3;
  --text:#e7e7e7;
  --shadow:0 8px 30px rgba(2,6,23,0.6);
  --shadow-color: rgba(2,6,23,0.6);
  --border-color:rgba(255,255,255,0.08);
  --bg-dark-gradient-end:#071024;
  --hover: rgba(255,255,255,0.1);
}
* {
  box-sizing:border-box;
  font-family:Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
}
body {
  margin:0;
  background:linear-gradient(180deg,var(--bg),var(--bg-dark-gradient-end));
  color:var(--text); 
  min-height:100vh;
  display:flex;
  align-items:center;
  justify-content:center;padding:32px
}
.container{
  width:100%;
  max-width:920px;
  background:linear-gradient(180deg,rgba(255, 255, 255, 0.02),rgba(0, 0, 0, 0.02));
  border-radius:14px;
  padding:28px;
  box-shadow:var(--shadow);
}
header{
  display:flex;
  align-items:center;
  justify-content: center;
  gap:16px;
  margin-bottom:18px;
  font-size: 25px;
}
.logo {
  width:52px;
  height:52px;
  border-radius:10px;
  background:linear-gradient(135deg,var(--accent),#7c3aed);
  display:flex;
  align-items:center;
  justify-content:center;
  font-weight:700
}
h1 {
  margin:0
}
p.lead {
  margin:4px 0 18px;
  color:var(--muted);
  font-size:13px
}
.grid {
  display:grid;
  grid-template-columns:repeat(2,1fr);
  gap:12px
}
a.card {
  display:block;
  padding:18px;
  border-radius:10px;
  background:rgba(255,255,255,0.03);
  text-decoration:none;
  color:inherit;
  transition:transform .12s ease, box-shadow .12s ease
}
a.card:hover {
  transform:translateY(-3px);
  box-shadow:0 10px 30px var(--shadow-color);
  background:var(--hover);
}
.card h2 {
  margin:0 0 6px;
  font-size:16px
}
.card p {
  margin:0;
  color:var(--muted);
  font-size:13px
}
.file-list {
  display:flex;
  flex-direction:column;
  gap:6px;
}
.file-item {
  display:flex;
  justify-content:space-between;
  padding:6px 10px;
  border-radius:8px;
  background:rgba(255,255,255,0.03);
  text-decoration:none;
  color:var(--text);
  transition:background 0.2s
}
.file-item:hover {
  background:var(--hover);
}
.file-name {
  font-size:14px
}
.file-size {
  font-size:12px;
  color:var(--muted)
}
.file-background {
  border-radius:10px;
  border:1px solid var(--border-color); 
  background:rgba(0,0,0,0.15);
  padding:12px;
  overflow:auto;
  margin-top: 15px;
}
footer {
  margin-top:16px;
  display:flex;
  justify-content:space-between;
  color:var(--muted);
  font-size:12px;
}
footer > .lewy, footer > .prawy {
  margin:0;
}
.input-field {
  padding:12px;
  border-radius:10px;
  border:1px solid var(--border-color); 
  background:var(--card);
  color:var(--text);
}

.input-field::placeholder {
  color:var(--muted);
}

.login-form .btn {
  background:rgba(255,255,255,0.03);
  color:var(--text);
  font-weight:600;
  font-size: 15px;
  cursor:pointer;
  transition:0.2s;
  text-decoration: none;
}

.login-form .btn:hover {

  box-shadow:var(--shadow);
}

.btn {
  margin-top:15px;
  display:block;
  width:100%;
  padding:12px;
  border-radius:10px;
  background:rgba(255,255,255,0.03);
  font-weight:600;
  text-align:center;
  border:none;
  cursor:pointer;
  transition:transform .12s ease, box-shadow .12s ease;
}

.btn:hover {
  box-shadow:0 10px 30px rgba(2,6,23,0.6);
  background:var(--hover);
}


@media (max-width:640px){.grid{grid-template-columns:1fr}}