:root {
    --kde-blue: #1d99f3;
    --kde-purple: #9b59b6;
    --kde-dark: #232629;
    --kde-darker: #1d1f21;
    --kde-medium: #31363b;
    --kde-light: #eff0f1;
}

body {
    background-color: var(--kde-darker);
    color: var(--kde-light);
    font-family: 'Noto Sans', sans-serif;
    min-height: 100vh;
}

.kde-window {
    background-color: var(--kde-dark);
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0, 0, 0, 0.5);
    overflow: hidden;
}

.kde-titlebar {
    background-color: var(--kde-medium);
    height: 36px;
    display: flex;
    align-items: center;
    padding: 0 10px;
    font-size: 14px;
}

.kde-button {
    width: 14px;
    height: 14px;
    border-radius: 50%;
    margin-right: 8px;
}

.kde-close-btn {
    background-color: #ed6a5e;
}

.kde-minimize-btn {
    background-color: #f5bf4f;
}

.kde-maximize-btn {
    background-color: #62c554;
}

.kde-terminal {
    background-color: var(--kde-darker);
    color: var(--kde-light);
    font-family: 'Fira Mono', monospace;
    padding: 10px;
    border-radius: 0 0 8px 8px;
}

.kde-prompt {
    color: var(--kde-blue);
    font-weight: bold;
}

.kde-path {
    color: var(--kde-purple);
}

.kde-input {
    background-color: var(--kde-medium);
    color: var(--kde-light);
    border: 1px solid #3daee9;
    border-radius: 4px;
    padding: 8px 12px;
    outline: none;
    transition: all 0.3s;
}

.kde-input:focus {
    box-shadow: 0 0 0 2px rgba(61, 174, 233, 0.5);
}

.kde-btn {
    background-color: var(--kde-blue);
    color: white;
    border: none;
    border-radius: 4px;
    padding: 8px 16px;
    cursor: pointer;
    transition: all 0.3s;
}

.kde-btn:hover {
    background-color: #0d89e3;
}

.kde-btn-purple {
    background-color: var(--kde-purple);
}

.kde-btn-purple:hover {
    background-color: #8e44ad;
}

.kde-panel {
    background-color: var(--kde-medium);
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 16px;
}

.kde-widget {
    background-color: var(--kde-dark);
    border-radius: 6px;
    padding: 12px;
    margin-bottom: 16px;
    box-shadow: 0 3px 6px rgba(0, 0, 0, 0.16);
}

.kde-tooltip {
    position: absolute;
    background-color: var(--kde-dark);
    border: 1px solid var(--kde-blue);
    border-radius: 4px;
    padding: 5px 10px;
    z-index: 100;
    display: none;
}

.kde-progress {
    height: 6px;
    background-color: var(--kde-medium);
    border-radius: 3px;
    overflow: hidden;
}

.kde-progress-bar {
    height: 100%;
    background-color: var(--kde-blue);
    border-radius: 3px;
}

.screen {
    display: none;
    padding: 20px;
    max-width: 1200px;
    margin: 0 auto;
}

.screen.active {
    display: block;
}

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

/* For terminal-like table */
.terminal-table {
    border-collapse: collapse;
    width: 100%;
}

.terminal-table th {
    text-align: left;
    color: var(--kde-blue);
    padding: 10px;
    border-bottom: 1px solid var(--kde-medium);
}

.terminal-table td {
    padding: 10px;
    border-bottom: 1px solid var(--kde-medium);
}

.kde-notification {
    background-color: var(--kde-medium);
    border-left: 4px solid var(--kde-blue);
    padding: 10px 15px;
    margin-bottom: 10px;
    border-radius: 0 4px 4px 0;
}

.kde-notification.urgent {
    border-left-color: #f39c12;
}

/* Animations */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.fade-in {
    animation: fadeIn 0.5s ease-in-out;
}

/* Class schedule styling */
.schedule-day {
    margin-bottom: 15px;
}

.schedule-item {
    padding: 8px 12px;
    border-radius: 4px;
    margin-bottom: 5px;
    background-color: rgba(29, 153, 243, 0.2);
    border-left: 3px solid var(--kde-blue);
}

/* For responsiveness */
@media (max-width: 768px) {
    .grid-container {
        grid-template-columns: 1fr;
    }
}