/* --- Variables & Global Styles --- */
:root {
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --bg-color: #f8f9fa;
    --container-bg: #ffffff;
    --text-primary: #2d3748;
    --text-secondary: #718096;
    --border-color: #e2e8f0;
    --accent-color: #4299e1;
    --success-color: #48bb78;
    --danger-color: #f56565;
    --hover-bg: #f7fafc;
}

body {
    font-family: var(--font-family);
    line-height: 1.6;
    background-color: var(--bg-color);
    color: var(--text-primary);
    margin: 0;
    padding: 2rem;
}

/* --- Layout & Container --- */
.container {
    max-width: 800px;
    margin: 0 auto;
    background-color: var(--container-bg);
    border-radius: 12px;
    padding: 2.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
}

h1 {
    margin: 0 0 1.5rem 0;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    font-weight: 700;
    text-align: center;
}

h2 {
    margin: 0;
    font-size: 1.25rem;
    font-weight: 500;
}

h3.completed-title {
    margin: 0;
    font-size: 1.1rem;
    font-weight: 500;
}

h4 {
    margin: 1.5rem 0 0.5rem 0;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--text-secondary);
    text-transform: uppercase;
}

/* --- Main Controls --- */
.main-controls {
    margin-bottom: 1.5rem;
    text-align: right;
}

.main-controls button {
    margin-left: 0.5rem;
    padding: 8px 15px;
    border: none;
    border-radius: 6px;
    background-color: var(--text-secondary);
    color: white;
    font-size: 0.85rem;
    cursor: pointer;
    transition: background-color 0.2s;
}

.main-controls button:hover {
    background-color: #5a687d;
}

.main-controls .btn-new {
    background-color: var(--success-color);
}

.main-controls .btn-new:hover {
    background-color: #3f905f;
}

.btn-new {
    background-color: var(--success-color);
    color: white;
}
.btn-new:hover {
    background-color: #3f905f;
}

/* --- New Tab Interface Styles --- */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1.5rem;
}

.tab-btn {
    padding: 10px 20px;
    border: none;
    background-color: transparent;
    cursor: pointer;
    font-size: 1rem;
    font-weight: 500;
    color: var(--text-secondary);
    border-bottom: 3px solid transparent;
    margin-bottom: -1px; /* Aligns with the container border */
}

.tab-btn.active {
    color: var(--accent-color);
    border-bottom-color: var(--accent-color);
}

.view {
    display: none;
}

.view.active {
    display: block;
}

/* --- Logs View --- */
.log-view-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
    flex-wrap: wrap;
    gap: 1rem;
}

.date-nav {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.date-nav h2 {
    white-space: nowrap;
}

.date-nav button {
    background-color: var(--hover-bg);
    border: 1px solid var(--border-color);
    border-radius: 50%;
    width: 36px;
    height: 36px;
    cursor: pointer;
    font-weight: bold;
    color: var(--text-secondary);
}
.date-nav button:hover {
    background-color: var(--border-color);
}

.date-range-search {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.date-range-search input[type="date"] {
    padding: 6px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit;
}

.date-range-search button {
    padding: 8px 15px;
    border: none;
    border-radius: 6px;
    background-color: var(--accent-color);
    color: white;
    font-weight: 500;
    cursor: pointer;
}

#log-view-content ul {
    padding-left: 1.5rem;
    border-left: 2px solid var(--border-color);
    list-style-type: none;
    margin-top: 0.5rem;
}

#log-view-content li {
    padding: 0; 
    border-bottom: none; 
    margin-bottom: 0.5rem; 
    color: var(--text-secondary);
}

#log-view-content .topic-title {
    font-weight: 500;
    color: var(--text-primary);
    display: block;
    margin-bottom: 0.25rem;
}


/* --- Collapsible Sections (Details/Summary) --- */
details {
    margin-bottom: 1rem;
    padding: 0.5rem 1.25rem;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    transition: background-color 0.2s ease-in-out;
}

details[open] {
    background-color: var(--hover-bg);
    border-color: #c7d7e6;
}

summary {
    padding: 0.75rem 0;
    font-weight: 500;
    cursor: pointer;
    outline: none;
}

summary::-webkit-details-marker {
    color: var(--accent-color);
}

.summary-flex {
    display: flex;
    /* justify-content: space-between; REMOVED */
    align-items: center;
    gap: 1rem;
}

.goal-details {
    margin-top: 0.5rem;
}

.completed-goal {
    opacity: 0.7;
}

.completed-goal .goal-text {
    text-decoration: line-through;
}

/* --- Log & Goal Lists --- */
ul {
    margin-top: 0.5rem;
    padding-left: 1.5rem;
    border-left: 2px solid var(--border-color);
    list-style-type: none;
}

li {
    margin-bottom: 0.5rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-secondary);
}

li.todays-log {
    background-color: #ebf8ff;
    border-radius: 4px;
    color: var(--text-primary);
    font-weight: bolder;
}

li span {
    font-size: 0.9rem;
}

#completed-goals-list li {
    padding: 0.5rem 0;
    border-bottom: 1px solid var(--border-color);
}

#completed-goals-list li:last-child {
    border-bottom: none;
}

.toggle-logs-btn {
    margin-left: 1.5rem;
    padding: 0.25rem;
    border: none;
    background: none;
    color: var(--accent-color);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
}

/* --- Action Buttons (Edit, Re-open) --- */
.edit-btn,
.reopen-goal-btn {
    padding: 0 0.5rem;
    border: none;
    background: none;
    color: var(--text-secondary);
    opacity: 0.5;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    cursor: pointer;
    transition: opacity 0.2s, color 0.2s;
    margin-left: auto; /* ADDED: This pushes the button to the right */
}

.edit-btn:hover,
.reopen-goal-btn:hover {
    opacity: 1;
    color: var(--accent-color);
}

.edit-btn svg,
.reopen-goal-btn svg {
    width: 18px;
    height: 18px;
    stroke-width: 2.5;
}

/* --- Forms --- */
.add-log-form,
.add-goal-form {
    margin-left: 1.5rem;
    display: flex;
    gap: 0.5rem;
}

.add-log-form {
    margin-bottom: 1rem;
}

.add-goal-form {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.log-input,
.goal-input {
    flex-grow: 1;
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-size: 0.9rem;
}

.log-input:focus,
.goal-input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px #cbe5f8;
}

.add-log-form button,
.add-goal-form button {
    padding: 8px 15px;
    border: none;
    border-radius: 6px;
    color: white;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s;
}

.add-log-form button {
    background-color: var(--success-color);
}
.add-log-form button:hover {
    background-color: #3f905f;
}

.add-goal-form button {
    background-color: var(--accent-color);
}
.add-goal-form button:hover {
    background-color: #3b88d1;
}

/* --- Authentication --- */
#auth-container {
    max-width: 400px;
}

#auth-form input {
    width: 100%;
    padding: 12px;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-sizing: border-box; /* Important for padding */
    font-size: 1rem;
}

.auth-actions {
    display: flex;
    gap: 1rem;
}

.auth-actions button {
    flex-grow: 1;
    padding: 12px;
    border: none;
    border-radius: 6px;
    font-size: 1rem;
    font-weight: 500;
    color: white;
    cursor: pointer;
}

#sign-in-btn {
    background-color: var(--accent-color);
}

#sign-up-btn {
    background-color: var(--success-color);
}

.error-message {
    color: var(--danger-color);
    margin-top: 1rem;
    text-align: center;
}

/* --- App Header --- */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 1rem;
}

.app-header h1 {
    margin: 0;
    padding: 0;
    border: none;
    text-align: left;
}

#sign-out-btn {
    padding: 8px 15px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    background-color: transparent;
    color: var(--text-secondary);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s;
}
#sign-out-btn:hover {
    background-color: var(--danger-color);
    border-color: var(--danger-color);
    color: white;
}

/* --- Modal Window --- */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.5);
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal-content {
    width: 500px;
    padding: 2rem;
    background: white;
    border-radius: 8px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.3);
}

.modal-content h3 {
    margin-top: 0;
    color: var(--text-primary);
}

.modal-content textarea {
    width: 100%;
    min-height: 80px;
    margin-bottom: 1rem;
    padding: 8px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    box-sizing: border-box;
    font-family: inherit;
    font-size: 1rem;
}

.modal-content textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px #cbe5f8;
}

.modal-actions {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-actions .right-actions {
    display: flex;
    gap: 0.5rem;
}

.modal-actions button {
    padding: 8px 16px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-weight: 500;
    cursor: pointer;
}

.modal-actions .btn-save {
    background-color: var(--accent-color);
    color: white;
    border-color: var(--accent-color);
}

.modal-actions .btn-delete {
    background-color: var(--danger-color);
    color: white;
    border-color: var(--danger-color);
}

.modal-actions .btn-complete {
    background-color: var(--success-color);
    color: white;
    border-color: var(--success-color);
}

.modal-actions .btn-reopen {
    background-color: var(--text-secondary);
    color: white;
    border-color: var(--text-secondary);
}

/* Style for the YouTube links to give user feedback */
.youtube-link {
    cursor: pointer;
    text-decoration: underline;
    color: var(--accent-color);
    font-weight: 500;
}
.youtube-link:hover {
    color: #2b6cb0; /* A darker blue for hover */
}

/* Specific styles for the YouTube modal content area */
.youtube-modal-content {
    width: 90%;
    max-width: 800px;
    padding: 1rem;
    background: #000;
}

/* Close button for the new modal */
.modal-close-btn {
    position: absolute;
    top: -10px;
    right: -10px;
    width: 30px;
    height: 30px;
    background: white;
    border: none;
    border-radius: 50%;
    font-size: 1.5rem;
    line-height: 30px;
    text-align: center;
    cursor: pointer;
    font-weight: bold;
    color: #333;
    box-shadow: 0 2px 5px rgba(0,0,0,0.2);
}

/* Responsive container for the iframe */
#youtube-player-container {
    position: relative;
    padding-top: 56.25%; /* 16:9 Aspect Ratio */
    height: 0;
    overflow: hidden;
}

#youtube-player-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.log-list-flat {
    list-style-type: disc;
    padding-left: 2rem;
}
.log-list-flat li {
    margin-bottom: 0.5rem;
}

table {
    width: 100%;
    border-collapse: collapse;
    margin-top: 1.5rem;
}
th, td {
    padding: 12px 15px;
    border: 1px solid var(--border-color);
    text-align: left;
}
th {
    background-color: var(--hover-bg);
}
tbody tr:hover {
    background-color: var(--hover-bg);
}
td a {
    color: var(--accent-color);
    text-decoration: none;
}
td a:hover {
    text-decoration: underline;
}

/* Style the container for the content modal's form fields */
.modal-content .create-content-panel {
    display: flex;
    flex-direction: column; /* This ensures fields stack vertically */
    gap: 1rem; /* Increase the space between fields */
    margin-bottom: 1rem; /* Add space below the fields, like the textarea */
}

/* Style the input fields themselves */
.modal-content .create-content-panel input {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    font-family: inherit; /* Use the app's font */
    font-size: 1rem; /* Match the textarea font size */
    width: 100%;
    box-sizing: border-box;
}

.modal-content .create-content-panel input:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px #cbe5f8;
}

.popover-container {
    position: relative;
    margin-left: 1rem;
    margin-top: 0.5rem;
}

.content-link-btn {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    background: none;
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 2px 8px;
    font-size: 0.8rem;
    color: var(--text-secondary);
    cursor: pointer;
}
.content-link-btn:hover {
    background: var(--hover-bg);
}
.content-link-btn svg {
    width: 14px;
    height: 14px;
}

.popover {
    position: absolute;
    left: 0;
    top: 100%;
    margin-top: 4px;
    background: white;
    border: 1px solid var(--border-color);
    border-radius: 8px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
    z-index: 20;
    min-width: 200px;
    padding: 0.5rem;
}

.popover ul {
    list-style: none;
    padding: 0;
    margin: 0;
    border: none;
}

.popover li {
    padding: 0.5rem 0.75rem;
    cursor: pointer;
    border-radius: 4px;
    white-space: nowrap;
}

.popover li:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

.popover h5 {
    margin: 0 0.75rem 0.5rem;
    font-size: 0.8rem;
    text-transform: uppercase;
    color: var(--text-secondary);
}

.popover-search {
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.linked-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.linked-item button {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--danger-color);
    font-weight: bold;
    opacity: 0.5;
}

.link-button {
    background: none;
    border: none;
    padding: 0;
    color: var(--accent-color);
    text-decoration: none;
    cursor: pointer;
    text-align: left;
    font-family: inherit;
    font-size: inherit;
}

.link-button:hover {
    text-decoration: underline;
}

.linked-item button:hover {
    opacity: 1;
}

.clickable-title {
    cursor: pointer;
}

.clickable-title:hover {
    text-decoration: underline;
}

/* --- Utility Classes --- */
.hidden {
    display: none;
}

.log-hidden {
    display: none;
}