@import url('https://fonts.googleapis.com/css2?family=Tahoma:wght@400;700&display=swap');

body {
    font-family: 'Tahoma', sans-serif;
    margin: 0;
    padding: 0;
    background: linear-gradient(135deg, #d0f0ff, #a0d8ef);
    color: #333;
}

header {
    background: linear-gradient(135deg, #72c6f8, #4a90e2);
    padding: 20px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 10px rgba(0, 0, 0, 0.2);
}

h1 {
    color: white;
    text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

h3 {
  text-shadow: 2px 2px 4px rgba(0, 0, 0, 0.3);
}

.header-buttons button {
    background: linear-gradient(135deg, #5dbbf3, #318acb);
    border: none;
    padding: 10px 20px;
    margin-left: 10px;
    border-radius: 15px;
    color: white;
    font-weight: bold;
    cursor: pointer;
    box-shadow: inset 2px 2px 4px rgba(255, 255, 255, 0.5), 2px 4px 6px rgba(0, 0, 0, 0.2);
}

.container {
    display: flex;
}

.sidebar {
    width: 250px;
    background: linear-gradient(135deg, #98ddf7, #7db5e4);
    padding: 20px;
    box-shadow: 4px 0 10px rgba(0, 0, 0, 0.2);
}

.sidebar ul {
    list-style: none;
    padding: 0;
}

.sidebar ul li {
    margin-bottom: 15px;
}

.sidebar ul li a {
    text-decoration: none;
    color: white;
    font-weight: bold;
    background: rgba(255, 255, 255, 0.2);
    padding: 10px;
    display: block;
    border-radius: 10px;
}

.sidebar ul li a:hover {
    background: rgba(255, 255, 255, 0.4);
}

main {
    flex-grow: 1;
    padding: 20px;
}

.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 20px;
}

.project-card {
    background: linear-gradient(135deg, #ffffff, #d0f0ff);
    padding: 20px;
    border-radius: 15px;
    box-shadow: inset 2px 2px 4px rgba(255, 255, 255, 0.7), 2px 4px 8px rgba(0, 0, 0, 0.2);
    display: flex;
    flex-direction: column;
    position: relative;
}

.project-banner {
    width: 100%;
    height: 150px;
    background-size: cover;
    background-position: center;
    border-radius: 10px;
    margin-bottom: 10px;
    position: relative;
}

.project-date {
    position: absolute;
    top: 120px;
    right: 10px;
    background: rgba(0, 0, 0, 0.4);
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    font-size: 0.9em;
}

.project-icon {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    margin-right: 15px;
    position: absolute;
    top: 120px;
    left: 5px;
    background-color: white;
    padding: 3px;
    border: 3px solid white;
}

.project-info {
    text-align: left;
    margin-top: 15px;
}

.project-category {
    display: inline-block;
    background: #4a90e2;
    color: white;
    padding: 5px 10px;
    border-radius: 20px;
    margin-right: 10px;
    margin-top: 10px;
    font-size: 0.9em;
}

.project-card h3 {
    font-size: 1.4em;
    margin-top: 70px;
}

.project-card a {
    display: inline-block;
    background: #318acb;
    color: white;
    padding: 10px 20px;
    border-radius: 25px;
    text-decoration: none;
    text-align: center;
    margin-top: 15px;
    font-weight: bold;
    box-shadow: inset 2px 2px 4px rgba(255, 255, 255, 0.5), 2px 4px 6px rgba(0, 0, 0, 0.2);
}

.project-card a:hover {
    background: #5dbbf3;
}

.collaboration-note {
    font-size: 0.9em;
    color: #555;
    margin-top: 10px;
}