src/style.css

@import url("https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap");

html,
body,
[class*="stApp"],
.stApp {
  font-family: "Inter", sans-serif !important;
}

/* Prevent UI jitter/shaking caused by scrollbar appearing/disappearing */
[data-testid="stAppViewContainer"],
[data-testid="stMain"],
.stApp {
  overflow-y: scroll !important;
}

/* Hide Streamlit top-right hamburger & footer */
#MainMenu {
  visibility: hidden;
}
header {
  visibility: hidden;
}
footer {
  visibility: hidden;
}

/* Smooth custom scrollbar */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: transparent;
}
::-webkit-scrollbar-thumb {
  background: #cbd5e1;
  border-radius: 999px;
}
::-webkit-scrollbar-thumb:hover {
  background: #94a3b8;
}

/* Tighten spacing */
.st-emotion-cache-1y4p8pa {
  padding: 1rem 2rem;
}

/* Card-like blocks */
.stExpander,
.stDataFrame,
.stJson {
  border-radius: 12px !important;
  border: 1px solid #e2e8f0 !important;
}

/* Buttons */
.stButton > button {
  border-radius: 10px !important;
  font-weight: 600 !important;
  transition:
    transform 0.1s ease,
    opacity 0.2s ease !important;
}
.stButton > button:active {
  transform: scale(0.97) !important;
}

/* Primary buttons (Streamlit type=primary) */
.stButton > button[kind="primary"] {
  background: #000000 !important;
  color: #ffffff !important;
  border: none !important;
}
.stButton > button[kind="primary"]:hover {
  background: #333333 !important;
}

/* Secondary buttons */
.stButton > button[kind="secondary"] {
  background: #ffffff !important;
  color: #000000 !important;
  border: 1px solid #000000 !important;
}

/* Inputs */
.stTextInput input,
.stNumberInput input,
.stSelectbox div[data-baseweb="select"] {
  border-radius: 8px !important;
  border-color: #e2e8f0 !important;
}
.stTextInput input:focus,
.stNumberInput input:focus {
  border-color: #000000 !important;
  box-shadow: 0 0 0 1px #000000 !important;
}

/* Data editor */
[data-testid="stDataFrame"] td {
  color: #000000 !important;
}
[data-testid="stDataFrame"] th {
  font-weight: 700 !important;
  text-transform: uppercase;
  font-size: 0.8rem;
  color: #64748b !important;
}

/* Images */
.stImage img {
  border-radius: 12px !important;
  border: 1px solid #e2e8f0 !important;
}