:root {
    --page-bg: #f3f3f3;
    --content-bg: #ffffff;
    --text-color: #0b0c0c;
    --border-color: #b1b4b6;
    --brand-color: #1d70b8;
    --green-color: #00703c;
    --red-color: #d4351c;
}

body { font-family: Arial, sans-serif; margin: 0; background-color: var(--page-bg); color: var(--text-color); }

.container { width: 80%; max-width: 1200px; min-width: 950px; margin: 0 auto; }

/* Standardized Header */
.site-header {
    background-color: #0b0c0c;
    color: white;
    padding: 15px 0;
    border-bottom: 5px solid #0b0c0c;
}
.header-inner {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
/* Logo Link - NO ID allowed here */
.header-logo { 
    font-weight: bold; 
    font-size: 1.5rem; 
    text-decoration: none; 
    color: white;
    padding: 10px 0;
}
.header-logo:hover { color: #ccc; }

.header-nav { 
    display: flex; 
    align-items: center; 
    gap: 40px; 
}

/* Main Content */
.main-container { background-color: var(--content-bg); border: 1px solid var(--border-color); margin-top: 30px; margin-bottom: 50px; padding: 40px; }

h1 { font-size: 2.5rem; font-weight: 700; margin: 0 0 20px 0; }
h2 { font-size: 1.5rem; font-weight: 700; margin: 0; }

/* Standard Buttons */
.button { 
    font-family: inherit; 
    font-size: 1rem; 
    font-weight: 700; 
    display: inline-flex; 
    align-items: center; 
    justify-content: center; 
    padding: 10px 20px; 
    min-width: 140px; 
    border: none; 
    cursor: pointer; 
    text-decoration: none; 
    position: relative; 
    box-sizing: border-box; 
}
.button--green { background-color: var(--green-color); color: white; box-shadow: 0 2px 0 #002d18; }
.button--secondary { background-color: #f3f3f3; color: #0b0c0c; box-shadow: 0 2px 0 var(--border-color); }
.button--warning { background-color: var(--red-color); color: white; box-shadow: 0 2px 0 #57140c; }
.button:active { top: 2px; box-shadow: none; }

.data-table { width: 100%; border-collapse: collapse; }
.data-table th { text-align: left; padding: 12px; border-bottom: 2px solid var(--text-color); }
.data-table td { padding: 12px; border-bottom: 1px solid #eee; vertical-align: middle; }

.form-group { margin-bottom: 25px; }
.form-label { display: block; font-weight: 700; margin-bottom: 5px; }
.form-input { width: 100%; max-width: 400px; padding: 12px; border: 2px solid var(--text-color); font-size: 1.1rem; }
.checkbox-label {
  width: 100%;
  max-width: 400px;
  padding: 12px;
  border: 2px solid var(--text-color);
  font-size: 1.1rem;
  display: flex;
  align-items: center;
  cursor: pointer;
  background-color: white;
}
.checkbox-label input[type="checkbox"] {
  margin-right: 10px;
}
.hint { display: block; color: #555; margin-bottom: 5px; font-size: 0.9rem; }