:root {
    --primary-color: #FF69B4; /* Hot Pink */
    --secondary-color: #FF1493; /* Deep Pink */
    --success-color: #28a745;
    --danger-color: #dc3545;
    --light-color: #f8f9fa;
    --dark-color: #343a40;

    --dark-mode-bg: #2c2c2c;
    --dark-mode-text: #f8f9fa;
    --dark-mode-container-bg: rgba(44, 44, 44, 0.9);
    --dark-mode-border: #555;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    margin: 0;
    padding: 20px;
    background-color: var(--light-color);
    color: var(--dark-color);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-size: cover;
    background-position: center;
    background-attachment: fixed;
    transition: background-image 1s ease-in-out, background-color 0.3s ease;
}

body.dark-mode {
    background-color: var(--dark-mode-bg);
    color: var(--dark-mode-text);
}

.container {
    width: 100%;
    max-width: min(800px, 75vw); /* Adjusted for 75% screen width, capped at 800px */
    background: rgba(255, 255, 255, 0.95);
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    backdrop-filter: blur(5px);
    -webkit-backdrop-filter: blur(5px);
}

body.dark-mode .container {
    background: var(--dark-mode-container-bg);
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.4);
}

h1 {
    text-align: center;
    color: var(--primary-color);
    margin-bottom: 25px;
    font-size: 2.2em;
    font-weight: 600;
}

textarea, input:not([type="checkbox"]), select, button {
    font-size: 1rem;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid #ccc;
    box-sizing: border-box;
    width: 100%;
    margin-bottom: 15px;
    transition: border-color 0.3s, box-shadow 0.3s;
}

input[type="checkbox"] {
    width: auto; /* Override the 100% width */
    margin-bottom: 0; /* Remove bottom margin for inline elements */
    margin-right: 5px; /* Add a small space between checkbox and text */
}

label {
    display: flex;
    align-items: center;
}

textarea:focus, input:focus, select:focus {
    border-color: var(--primary-color);
    box-shadow: 0 0 0 3px rgba(0, 123, 255, 0.25);
    outline: none;
}

body.dark-mode textarea, 
body.dark-mode input, 
body.dark-mode select {
    background-color: #444;
    color: var(--dark-mode-text);
    border: 1px solid var(--dark-mode-border);
}

#content {
    height: 300px;
    resize: vertical;
}

.actions, .share-controls, .admin-buttons, .modal-buttons {
    display: flex;
    gap: 15px;
    align-items: center;
}

button {
    cursor: pointer;
    background-color: var(--primary-color);
    color: white;
    border: none;
    transition: background-color 0.3s ease, transform 0.1s ease;
}

button:hover {
    background-color: #0056b3;
    transform: translateY(-1px);
}

button:active {
    transform: translateY(0);
}

button.secondary {
    background-color: var(--secondary-color);
}

button.secondary:hover {
    background-color: #5a6268;
}

.file-upload-button {
    background-color: var(--secondary-color);
    color: white;
    padding: 12px 20px;
    border-radius: 6px;
    cursor: pointer;
    display: inline-block;
    text-align: center;
}

.file-upload-button:hover {
    background-color: #5a6268;
}

#downloadExt {
    width: 120px;
}

#advancedOptions summary {
    cursor: pointer;
    font-weight: bold;
    margin-bottom: 10px;
}

.advanced-options-content {
    padding: 15px;
    border: 1px solid #eee;
    border-radius: 8px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    align-items: flex-start; /* Align items to the start (left) */
}

body.dark-mode #advancedOptions .advanced-options-content {
    border-color: var(--dark-mode-border);
}

#shareLinkContainer {
    display: none;
    align-items: center;
    gap: 10px;
    background-color: #e9ecef;
    padding: 10px;
    border-radius: 8px;
    border: 1px solid #dee2e6;
}

body.dark-mode #shareLinkContainer {
    background-color: var(--dark-mode-container-bg);
    border: 1px solid var(--dark-mode-border);
}

#shareUrl {
    flex-grow: 1;
    background-color: #e9ecef;
    border: 1px solid #dee2e6;
    cursor: pointer;
}

body.dark-mode #shareUrl {
    background-color: var(--dark-mode-bg);
    border: 1px solid var(--dark-mode-border);
    color: var(--dark-mode-text);
}

.top-controls {
    position: fixed;
    top: 20px;
    right: 20px;
    display: flex;
    gap: 10px;
    z-index: 100;
}

#adminToggleButton {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 100;
    color: var(--primary-color); /* Use primary color for link */
    text-decoration: underline;
    cursor: pointer;
    background: none;
    border: none;
    padding: 0;
}

#adminToggleButton:hover {
    color: var(--secondary-color);
}

#notification {
    position: fixed;
    top: 20px;
    left: 50%;
    transform: translateX(-50%);
    padding: 12px 25px;
    border-radius: 8px;
    color: white;
    font-weight: bold;
    z-index: 1000;
    opacity: 0;
    transition: opacity 0.5s ease-in-out, background-color 0.3s ease;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.2);
    pointer-events: none;
}

#notification.show {
    opacity: 1;
}

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

#notification.error {
    background-color: var(--danger-color);
}

/* Modal Styles */
#adminShareModal {
    position: fixed;
    top: 0; left: 0;
    width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.5);
    z-index: 1001;
    display: none; /* Initially hidden */
    justify-content: center;
    align-items: center;
}

#adminShareModal .modal-content {
    background: white;
    padding: 30px;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.15);
    width: 90%;
    max-width: 700px;
}

body.dark-mode #adminShareModal .modal-content {
    background: var(--dark-mode-container-bg);
    color: var(--dark-mode-text);
}

/* Markdown Styles */
.markdown-body {
    padding: 15px;
    border: 1px solid #ccc;
    border-radius: 8px;
    background-color: #fff;
    line-height: 1.6;
}

body.dark-mode .markdown-body {
    background-color: #333;
    border-color: var(--dark-mode-border);
}

/* Responsive adjustments */
@media (max-width: 600px) {
    .container { padding: 15px; }
    h1 { font-size: 1.8em; }
    .actions, .share-controls, .admin-buttons {
        flex-direction: column;
        align-items: stretch;
    }
    .top-controls {
        top: 10px;
        right: 10px;
        gap: 5px;
    }
    #adminToggleButton {
        bottom: 10px;
        right: 10px;
    }
}