/* ================================================================
   AnalytiChem – Corporate SDS Portal Theme (self-contained)
   Clean light layout, blue accents, subtle shadows, minimalistic UI
   ================================================================ */

/* Global */
body {
    margin: 0;
    font-family: "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    background: #f4f6f9;
    color: #1a1a1a;
}

/* Layout container */
.container {
    max-width: 1200px;
    margin: auto;
    padding: 1.5rem;
}

/* Header */
header {
    background: #ffffff;
    border-bottom: 2px solid #e0e6ef;
    padding: 0.8rem 0;
    margin-bottom: 2rem;
    box-shadow: 0 2px 4px rgba(0,0,0,0.04);
}

nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Logo + Title Group */
.brand {
    display: flex;
    align-items: center;
    font-size: 1.3rem;
    font-weight: 600;
    color: #003366;
}

.brand img {
    max-width: 150px;
    height: auto;
    margin-right: 12px;
}

/* Search */
input[type="search"] {
    padding: 0.5rem 0.75rem;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    min-width: 260px;
    background: #fff;
}

input[type="search"]:focus {
    border-color: #0073e6;
    box-shadow: 0 0 0 2px rgba(0, 115, 230, 0.25);
    outline: none;
}

/* Language dropdown */
details summary {
    cursor: pointer;
    padding: 0.4rem 0.6rem;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background: #ffffff;
}

details ul {
    list-style: none;
    padding-left: 0;
    margin: 0.5rem 0 0 0;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background: #ffffff;
}

details ul li {
    padding: 0.4rem 0.6rem;
}

details ul li a {
    text-decoration: none;
    color: #003366;
}

/* Main content */
h1, h2 {
    color: #003366;
}

select {
    padding: 0.45rem;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    background: #ffffff;
}

/* PDF Viewer */
iframe#pdf {
    width: 100%;
    height: 85vh;
    border: 1px solid #cbd5e1;
    margin-top: 1rem;
    background: #ffffff;
}

/* Buttons */
button {
    background: #0073e6;
    color: #ffffff;
    border: none;
    padding: 0.45rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
}

button:hover {
    background: #005bb5;
}

a {
    color: #0060c9;
}

a:hover {
    text-decoration: underline;
}

/* Footer */
footer {
    text-align: center;
    color: #666;
    margin-top: 2.5rem;
    padding: 1rem;
    font-size: 0.85rem;
}