:root {
    --primary-color: black;
    --header-footer-color: white;
    --header-footer-color-dark: #f2f2f2;
    --select-logo-text-color: #0097b2;
    --error-color: #ff89ee;
    --success-color: #89ffb4;  /* Green similar in hue */
    --warning-color: #ffd789;  /* Orange/yellow */
    --info-color: #89d4ff;     /* Blue */
    --primary-bg-colour: white; /* #1675aa; */
    --secondary-bg-colour: #2c525b;
    --secondary-bg-colour-dark: #26474e;
}

html, body {
    height: 100%;
    margin: 0;
    padding: 0;
}

body {
    height: 100%;
    margin: 0;
    padding: 0;
    font-family: 'Source Sans Pro', sans-serif;
    background-color: var(--primary-bg-colour);
    /* color: white; */
    text-align: center;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

main {
    flex: 1; 
    padding: 0 40px 0 40px;
    color: var(--primary-color);
}

main a {
    color: var(--primary-color);
}

main a:hover {
    color: #333;
}

header, footer {
    color: var(--header-footer-color);
}

/* links */


a {
    color: var(--header-footer-color);
}

a:hover  {
    color: var(--header-footer-color-dark);
}


/* header and navigation */
header {
    background-color: var(--secondary-bg-colour);
    margin: 0;
    padding: 10px 10px 10px 10px;
}
header nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    gap: 20px;
}

header nav img {
    height: 40px;
}

.nav-left, .nav-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.nav-link {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 5px;
}

/* footer */
footer {
    background-color: var(--secondary-bg-colour);
    margin: 0;
    padding: 5px 0 20px 0;   /* top right bottom left */
    text-align: center; 
    position: relative; 
    width: 100%; 
    z-index: 1000; 
    margin-top: 40px;
}

/* buttons */
.btn-primary {
    color: white;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: 5px;
    display: inline-block;
    background-color: var(--secondary-bg-colour-dark);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
    border: none;
    font-size: 16px;
    font-family: inherit;
    cursor: pointer;
}

.btn-primary:hover, .btn-signup:hover, .btn-logout:hover {
    background-color: var(--secondary-bg-colour-dark);
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.cta-buttons {
    margin-bottom: 40px;
}

button, .btn-primary {
    border: none;
    outline: none;  /* remove focus outline */
}

button:focus, .btn-primary:focus { /* keep focus visible for accessibility */
    outline: 2px solid var(--primary-dark);
    outline-offset: 2px;
}

/* space between content */
.home-content > *,
.project-partner-content > div,
.resources-content > *, 
.contact-content > div, 
.select-info > div {
    margin-bottom: 60px;
}

.contact-content-map {
    display: flex; 
    justify-content: center; 
    align-items: center; 
    gap: 40px;
}

.contact-content-team {
    display: flex; 
    justify-content: center; 
    gap: 60px;
}

.project-partner-content-images {
    display: grid;
    grid-template-columns: repeat(6, 1fr); /* 6 columns */
    gap: 30px;
    max-width: 800px;
    margin: 0 auto;
    justify-items: center;
    align-items: center;
}

.project-partner-content-images img {
    width: 100%;
    height: auto;
    grid-column: span 2;  /* Each image takes 2 columns (makes 3 across) */
}

/* Center the last two images */
.project-partner-content-images img:nth-child(4) {
    grid-column: 2 / 4;  /* Start at column 2 */
}

.project-partner-content-images img:nth-child(5) {
    grid-column: 4 / 6;  /* Start at column 4 */
}

.select-logo {
    margin-top: 20px;
    margin-bottom: 40px;
    text-align: center;
}

/* responsive width of div */
.select-info {
    max-width: min(40%, 800px);  
    margin: 0 auto;
    padding: 0 20px;
    text-align: center;
}

@media (max-width: 768px) { /* widely used mobile/tablet breakpoint in screenw idth*/
    .select-info {
        max-width: 100%;
    }
}

/* authentication */
.login-container {
    max-width: 350px;
    margin: 0 auto;
    padding: 20px;
}

/* log in form */
.form-group {
    margin-bottom: 15px;
}

.form-group label {
    display: block;
    margin-bottom: 5px;
}

.form-group input {
    width: 100%;
    padding: 8px;
    border: 1px solid #ccc;
    border-radius: 3px;
    font-size: 14px;
    box-sizing: border-box;
}

.login-container button {
    width: 100%;
    padding: 10px;
    margin-top: 10px;
}

/* messages */
.message {
    padding: 15px;
    margin: 20px auto;
    max-width: 600px;
    border-radius: 5px;
    text-align: left;
}
/* 
.message ul {
    list-style: none;
    padding: 0;
    margin: 0;
} */

.message.error {
    background-color: var(--error-color);
    color: #333;
}

.message.success {
    background-color: var(--success-color);
    color: #333;
}

.message.warning {
    background-color: var(--warning-color);
    color: #333;
}

.message.info {
    background-color: var(--info-color);
    color: #333;
}

.message.debug {
    background-color: #e0e0e0;
    color: #333;
}

.message.welcome {
    background-color: var(--info-color);
    color: #333;
    text-align: center;
}

/* help text in change password */
.help-text {
    display: block;
    margin-top: 10px;
    text-align: left;
}

.help-text ul {
    margin: 5px 0;
    padding-left: 20px;
    text-align: left;
}

/* error for incorrect username/password */
.error {
    color: var(--error-color);
    font-size: 14px;
    display: block;
    margin-top: 10px;
    text-align: left;
}

.error ul {
    margin: 5px 0;
    padding-left: 20px;
    text-align: left;
}