:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --primary-text: #e0e0e0;
    --secondary-text: #a0a0a0;
    --accent-color: #4A90E2;
    --border-color: #333333;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--primary-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header {
    text-align: center;
    padding: 4rem 0;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

header .subtitle {
    font-size: 1.2rem;
    color: var(--secondary-text);
}

.search-container {
    margin-bottom: 2rem;
}

#search-box {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--primary-text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#search-box:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3);
}

.tool-grid {
    display: grid;
    /* This creates a responsive grid that fits as many cards as possible */
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    padding-bottom: 4rem;
}

.tool-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-decoration: none;
    color: var(--primary-text);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-color);
    border-color: var(--accent-color);
}

.tool-card .card-icon {
    margin-bottom: 1rem;
}

.tool-card .card-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-color);
}

.tool-card h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: var(--secondary-text);
    font-size: 0.95rem;
}

footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--secondary-text);
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

/* For smaller screens */
@media (max-width: 600px) {
    .container {
        padding: 0 1rem;
    }

    header h1 {
        font-size: 2.5rem;
    }
}

:root {
    --bg-color: #121212;
    --surface-color: #1e1e1e;
    --primary-text: #e0e0e0;
    --secondary-text: #a0a0a0;
    --accent-color: #4A90E2;
    --border-color: #333333;
    --shadow-color: rgba(0, 0, 0, 0.5);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--primary-text);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

header {
    text-align: center;
    padding: 4rem 0;
}

header h1 {
    font-size: 3rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

header .subtitle {
    font-size: 1.2rem;
    color: var(--secondary-text);
}

.search-container {
    margin-bottom: 3rem;
}

#search-box {
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--primary-text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#search-box:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3);
}

/* New style for the section headers */
.tool-grid-header {
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.tool-grid-header h2 {
    font-size: 1.5rem;
    color: var(--primary-text);
}

.tool-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.5rem;
    margin-bottom: 3rem; /* Space between tool groups */
}

.tool-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    text-decoration: none;
    color: var(--primary-text);
    display: flex;
    flex-direction: column;
    transition: transform 0.2s ease-in-out, box-shadow 0.2s ease-in-out;
}

.tool-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 8px 25px var(--shadow-color);
    border-color: var(--accent-color);
}

.tool-card .card-icon {
    margin-bottom: 1rem;
}

.tool-card .card-icon svg {
    width: 32px;
    height: 32px;
    color: var(--accent-color);
}

.tool-card h2 {
    font-size: 1.25rem;
    margin-bottom: 0.5rem;
}

.tool-card p {
    color: var(--secondary-text);
    font-size: 0.95rem;
    flex-grow: 1; /* Ensures cards in a row are the same height */
}

footer {
    text-align: center;
    padding: 2rem 0;
    color: var(--secondary-text);
    border-top: 1px solid var(--border-color);
    font-size: 0.9rem;
}

@media (max-width: 600px) {
    .container {
        padding: 0 1rem;
    }

    header h1 {
        font-size: 2.5rem;
    }
}
/* --- Tool Page Specific Styles --- */
.tool-header {
    text-align: center;
    padding: 2rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 2rem;
}

.back-link {
    display: inline-block;
    margin-bottom: 1rem;
    color: var(--secondary-text);
    text-decoration: none;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--accent-color);
}

.tool-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem;
    background-color: var(--surface-color);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.drop-zone {
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    padding: 3rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.drop-zone.drag-over {
    border-color: var(--accent-color);
    background-color: rgba(74, 144, 226, 0.1);
}

.drop-zone-prompt svg {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.drop-zone-prompt p {
    font-size: 1.1rem;
    color: var(--primary-text);
}

.drop-zone-prompt .small-text {
    font-size: 0.9rem;
    color: var(--secondary-text);
    margin: 0.5rem 0;
}

.button-secondary {
    padding: 0.75rem 1.5rem;
    border: 1px solid var(--border-color);
    background-color: transparent;
    color: var(--primary-text);
    border-radius: 8px;
    font-size: 1rem;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
    margin-top: 1rem;
}

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

.file-list-container {
    margin-top: 2rem;
}

.file-list-container h3 {
    margin-bottom: 1rem;
}

#file-list {
    list-style: none;
    padding: 0;
}

.file-item {
    display: flex;
    align-items: center;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem 1rem;
    margin-bottom: 0.5rem;
    justify-content: space-between;
    cursor: grab;
}

.file-item.dragging {
    opacity: 0.5;
}

.file-name {
    flex-grow: 1;
    margin: 0 1rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.drag-handle, .remove-btn {
    border: none;
    background: none;
    cursor: pointer;
    color: var(--secondary-text);
    padding: 0.25rem;
}

.drag-handle {
    cursor: grab;
}

.remove-btn:hover {
    color: #E57373; /* A soft red for removal */
}

.action-container {
    text-align: center;
    margin-top: 2rem;
}

.button-primary {
    padding: 1rem 2rem;
    border: none;
    background-color: var(--accent-color);
    color: #fff;
    border-radius: 8px;
    font-size: 1.1rem;
    font-weight: 500;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.button-primary:hover:not(:disabled) {
    background-color: #3a7ac8;
}

.button-primary:disabled {
    background-color: #444;
    color: var(--secondary-text);
    cursor: not-allowed;
}
.button-primary:disabled {
    background-color: #444;
    color: var(--secondary-text);
    cursor: not-allowed;
}

/* --- PDF Splitter Page Styles (REVISED) --- */
.split-options-container {
    padding: 1.5rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-top: 2rem;
}

.file-info {
    font-size: 1rem;
    margin-bottom: 1.5rem;
    padding-bottom: 1.5rem;
    border-bottom: 1px solid var(--border-color);
}

.file-info span {
    font-weight: 500;
    color: var(--secondary-text);
}

.split-mode-selector {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
    background-color: var(--bg-color);
    border-radius: 8px;
    padding: 0.25rem;
    border: 1px solid var(--border-color);
}

.mode-option {
    flex: 1;
}

.mode-option input[type="radio"] {
    display: none;
}

.mode-option label {
    display: block;
    width: 100%;
    padding: 0.75rem 1rem;
    text-align: center;
    border-radius: 6px;
    cursor: pointer;
    transition: background-color 0.2s ease, color 0.2s ease;
    color: var(--secondary-text);
    font-weight: 500;
}

.mode-option input[type="radio"]:checked + label {
    background-color: var(--accent-color);
    color: #fff;
}

#extract-options label {
    display: block;
    margin-bottom: 0.5rem;
    color: var(--secondary-text);
}

.text-input {
    width: 100%;
    padding: 1rem;
    font-size: 1.1rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--primary-text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.text-input::placeholder {
    color: var(--secondary-text);
    opacity: 0.5;
}

.text-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3);
}

.error-message {
    color: #E57373; /* Soft red for errors */
    text-align: center;
    margin-top: 1rem;
}


/* --- PDF Preview Styles --- */
.preview-container {
    margin-top: 2rem;
}

.preview-container h3 {
    margin-bottom: 1rem;
}

#preview-pages {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 1rem;
    padding: 1rem;
    background-color: var(--bg-color);
    border-radius: 8px;
    border: 1px solid var(--border-color);
    max-height: 400px; /* Limit height and make it scrollable */
    overflow-y: auto;
}

.preview-page {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.preview-page canvas {
    width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: 4px;
}

.page-number {
    font-size: 0.8rem;
    color: var(--secondary-text);
    margin-top: 0.5rem;
}

.loader {
    border: 4px solid var(--surface-color);
    border-radius: 50%;
    border-top: 4px solid var(--accent-color);
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 2rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* --- PDF Compressor Page Styles --- */
.compress-options-container {
    padding: 1.5rem;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    margin-top: 2rem;
}

.options-label {
    display: block;
    margin-bottom: 1rem;
    color: var(--secondary-text);
    font-weight: 500;
}

.compression-mode-selector {
    display: flex;
    gap: 0.5rem;
    background-color: var(--bg-color);
    border-radius: 8px;
    padding: 0.25rem;
    border: 1px solid var(--border-color);
}

.preview-section {
    margin-top: 2rem;
}

.preview-section h4 {
    text-align: center;
    margin-bottom: 1.5rem;
    color: var(--secondary-text);
}

.preview-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    text-align: center;
}

.preview-box h5 {
    margin-bottom: 1rem;
}

.preview-box canvas {
    width: 100%;
    height: auto;
    border: 1px solid var(--border-color);
    border-radius: 8px;
}

.preview-box p {
    margin-top: 0.5rem;
    font-size: 0.9rem;
    font-weight: 500;
}


/* --- Word Counter & Analyzer Page Styles --- */
.analyzer-container {
    display: grid;
    grid-template-columns: 1.5fr 1fr; /* 60% for text area, 40% for stats */
    gap: 2rem;
    height: 70vh; /* Make it take up a good portion of the viewport height */
}

.text-input-area {
    display: flex;
}

#text-input {
    width: 100%;
    height: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    color: var(--primary-text);
    resize: none;
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

#text-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3);
}

.stats-dashboard {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1.5rem;
    overflow-y: auto; /* Allow scrolling if content overflows */
}

.stats-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background-color: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    text-align: center;
}

.stat-value {
    display: block;
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--accent-color);
}

.stat-label {
    font-size: 0.8rem;
    color: var(--secondary-text);
    text-transform: uppercase;
}

.detail-stats {
    margin-bottom: 2rem;
    border-top: 1px solid var(--border-color);
    padding-top: 1.5rem;
}

.detail-stat {
    display: flex;
    justify-content: space-between;
    align-items: center;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.detail-label {
    color: var(--secondary-text);
}

.detail-value {
    font-weight: 500;
    color: var(--primary-text);
}

.word-frequency h4 {
    margin-bottom: 1rem;
    border-bottom: 1px solid var(--border-color);
    padding-bottom: 0.5rem;
}

.word-frequency ul {
    list-style: none;
}

.word-frequency li {
    display: flex;
    justify-content: space-between;
    padding: 0.5rem 0;
}

.word-frequency li.placeholder {
    color: var(--secondary-text);
    font-style: italic;
}

.word-frequency .word {
    font-weight: 500;
}

.word-frequency .count {
    background-color: var(--bg-color);
    padding: 0.1rem 0.5rem;
    border-radius: 4px;
    font-size: 0.9rem;
}

/* Responsive adjustments for analyzer */
@media (max-width: 900px) {
    .analyzer-container {
        grid-template-columns: 1fr;
        height: auto;
    }
    #text-input {
        height: 40vh; /* Give it a fixed height on mobile */
    }
}

/* --- Add Page Numbers Page Styles --- */
.options-panel-container {
    width: 100%;
    padding: 2rem;
    background-color: var(--surface-color);
    border-radius: 12px;
    border: 1px solid var(--border-color);
}

.options-grid {
    display: grid;
    grid-template-columns: auto 1fr;
    gap: 2rem;
    align-items: flex-start;
}

.sub-options {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.position-grid {
    display: grid;
    grid-template-columns: repeat(3, 40px);
    grid-template-rows: repeat(3, 40px);
    gap: 5px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    padding: 5px;
    border-radius: 8px;
}

.grid-cell {
    border: 2px dashed var(--border-color);
    border-radius: 4px;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.grid-cell:hover {
    background-color: #2a2a2a;
    border-color: #555;
}

.grid-cell.selected {
    background-color: var(--accent-color);
    border-color: var(--accent-color);
}

.form-group-inline {
    display: flex;
    gap: 1rem;
    align-items: center;
}

.form-color-input {
    -webkit-appearance: none;
    -moz-appearance: none;
    appearance: none;
    width: 40px;
    height: 40px;
    background-color: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
}
.form-color-input::-webkit-color-swatch {
    border-radius: 8px;
    border: 1px solid var(--border-color);
}
.form-color-input::-moz-color-swatch {
    border-radius: 8px;
    border: 1px solid var(--border-color);
}

/* Responsive adjustments for page number options */
@media (max-width: 768px) {
    .options-grid {
        grid-template-columns: 1fr;
        gap: 2.5rem;
        justify-items: center;
    }
}

/* --- Generic Tool Page Styles --- */
.tool-header {
    text-align: center;
    padding: 3rem 0;
    border-bottom: 1px solid var(--border-color);
    margin-bottom: 3rem;
}

.tool-header h1 {
    font-size: 2.5rem;
    margin-bottom: 0.5rem;
}

.back-link {
    display: block;
    max-width: fit-content;
    margin: 0 auto 1.5rem auto;
    color: var(--secondary-text);
    text-decoration: none;
    transition: color 0.2s ease;
}

.back-link:hover {
    color: var(--accent-color);
}

.tool-container {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 2rem;
}

.drop-zone {
    width: 100%;
    padding: 3rem;
    border: 2px dashed var(--border-color);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    transition: border-color 0.2s ease, background-color 0.2s ease;
}

.drop-zone.drag-over {
    border-color: var(--accent-color);
    background-color: #2a2a2a;
}

.drop-zone-prompt svg {
    color: var(--accent-color);
    margin-bottom: 1rem;
}

.drop-zone-prompt p {
    color: var(--secondary-text);
}

.drop-zone-prompt .small-text {
    font-size: 0.9rem;
    margin: 0.5rem 0;
}

.action-container {
    width: 100%;
    text-align: center;
    margin-top: 1rem;
}

/* --- Generic Form Styles --- */
.form-group {
    display: flex;
    flex-direction: column;
    width: 100%;
}

.form-input {
    width: 100%;
    padding: 0.75rem 1rem;
    font-size: 1rem;
    background-color: var(--bg-color);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: var(--primary-text);
    outline: none;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.form-input:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(74, 144, 226, 0.3);
}

/* --- Generic Button Styles --- */
.button-primary {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    padding: 0.85rem 2rem;
    font-size: 1rem;
    font-weight: 500;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease;
}

.button-primary:hover:not(:disabled) {
    background-color: #3a80d2;
}

.button-secondary {
    background-color: var(--surface-color);
    color: var(--primary-text);
    border: 1px solid var(--border-color);
    padding: 0.75rem 1.5rem;
    font-size: 1rem;
    border-radius: 8px;
    cursor: pointer;
    transition: background-color 0.2s ease, border-color 0.2s ease;
}

.button-secondary:hover {
    background-color: #2a2a2a;
    border-color: #555;
}


/* --- Pomodoro Timer Page Styles --- */
.pomodoro-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 2rem;
    max-width: 900px;
    margin: 0 auto;
}

.timer-card, .task-list-card {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 2rem;
}

.mode-selector {
    display: flex;
    justify-content: center;
    gap: 0.5rem;
    margin-bottom: 2rem;
}

.mode-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--secondary-text);
    padding: 0.5rem 1rem;
    border-radius: 20px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s ease;
}

.mode-btn.active {
    background-color: var(--accent-color);
    color: #fff;
    border-color: var(--accent-color);
}

.timer-display-container {
    position: relative;
    width: 220px;
    height: 220px;
    margin: 0 auto 2rem auto;
    display: flex;
    align-items: center;
    justify-content: center;
}

.progress-ring {
    position: absolute;
    top: 0;
    left: 0;
}

.progress-ring-bg {
    fill: none;
    stroke: var(--bg-color);
}

.progress-ring-fg {
    fill: none;
    stroke: var(--accent-color);
    stroke-linecap: round;
    transform: rotate(-90deg);
    transform-origin: 50% 50%;
    transition: stroke-dashoffset 0.5s linear;
}

.time-display {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--primary-text);
}

.timer-controls {
    display: flex;
    justify-content: center;
    gap: 1rem;
}

.timer-controls .button-primary {
    width: 150px; /* Give the main button a fixed width */
}

.timer-controls .button-secondary {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0;
    width: 54px; /* Make it a square */
    height: 54px;
}

.session-tracker {
    text-align: center;
    margin-top: 1.5rem;
    color: var(--secondary-text);
}

.task-list-card h3 {
    text-align: center;
    margin-bottom: 1.5rem;
}

.task-form {
    display: flex;
    gap: 0.5rem;
    margin-bottom: 1.5rem;
}

.task-form button {
    background-color: var(--accent-color);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 1.5rem;
    font-weight: bold;
    cursor: pointer;
    width: 48px;
    flex-shrink: 0;
    transition: background-color 0.2s ease;
}

.task-form button:hover {
    background-color: #3a80d2;
}

.task-list {
    list-style: none;
    max-height: 280px;
    overflow-y: auto;
}

.task-list li {
    display: flex;
    align-items: center;
    padding: 0.75rem 0.5rem;
    border-bottom: 1px solid var(--border-color);
}

.task-list li.completed .task-text {
    text-decoration: line-through;
    color: var(--secondary-text);
}

.task-list .task-checkbox {
    margin-right: 1rem;
    width: 20px;
    height: 20px;
    flex-shrink: 0;
}

.task-list .task-text {
    flex-grow: 1;
}

.task-list .delete-task-btn {
    background: none;
    border: none;
    color: var(--secondary-text);
    cursor: pointer;
    font-size: 1.2rem;
    padding: 0.5rem;
    opacity: 0.5;
    transition: opacity 0.2s ease, color 0.2s ease;
}

.task-list li:hover .delete-task-btn {
    opacity: 1;
}
.task-list .delete-task-btn:hover {
    color: #E57373; /* Soft red */
}

/* Responsive adjustments for Pomodoro page */
@media (max-width: 900px) {
    .pomodoro-container {
        grid-template-columns: 1fr;
    }
}


/* --- Markdown Preview Page Styles --- */
.markdown-container {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    height: 75vh; /* Set a fixed height for the container */
    padding-bottom: 2rem;
}

.markdown-panel {
    background-color: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden; /* Hide anything that spills out */
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.75rem 1rem;
    background-color: var(--bg-color);
    border-bottom: 1px solid var(--border-color);
    font-size: 0.8rem;
    font-weight: 500;
    color: var(--secondary-text);
    text-transform: uppercase;
}

.panel-header .button-secondary {
    padding: 0.25rem 0.75rem;
    font-size: 0.8rem;
}

#markdown-input {
    flex-grow: 1;
    width: 100%;
    padding: 1rem;
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    background-color: var(--surface-color);
    border: none;
    color: var(--primary-text);
    resize: none;
    outline: none;
}

.preview-content {
    flex-grow: 1;
    padding: 1rem;
    overflow-y: auto;
}

/* --- Rendered Markdown Styles --- */
.preview-content h1,
.preview-content h2,
.preview-content h3,
.preview-content h4,
.preview-content h5,
.preview-content h6 {
    margin-top: 1.5rem;
    margin-bottom: 1rem;
    font-weight: 700;
}
.preview-content h1 { font-size: 2em; border-bottom: 1px solid var(--border-color); padding-bottom: .3em;}
.preview-content h2 { font-size: 1.5em; border-bottom: 1px solid var(--border-color); padding-bottom: .3em;}
.preview-content h3 { font-size: 1.25em; }
.preview-content h4 { font-size: 1em; }

.preview-content p {
    margin-bottom: 1rem;
    line-height: 1.7;
}

.preview-content a {
    color: var(--accent-color);
    text-decoration: none;
}
.preview-content a:hover {
    text-decoration: underline;
}

.preview-content ul, .preview-content ol {
    margin-bottom: 1rem;
    padding-left: 2rem;
}

.preview-content li {
    margin-bottom: 0.5rem;
}

.preview-content blockquote {
    margin: 0 0 1rem 0;
    padding-left: 1rem;
    border-left: 4px solid var(--border-color);
    color: var(--secondary-text);
}

.preview-content code {
    background-color: var(--bg-color);
    padding: 0.2em 0.4em;
    font-size: 85%;
    border-radius: 6px;
}

.preview-content pre {
    background-color: var(--bg-color);
    padding: 1rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    overflow-x: auto;
}

.preview-content pre code {
    padding: 0;
    font-size: 100%;
}

.preview-content table {
    width: 100%;
    border-collapse: collapse;
    margin-bottom: 1rem;
}

.preview-content th, .preview-content td {
    border: 1px solid var(--border-color);
    padding: 0.5rem 1rem;
}

.preview-content th {
    background-color: var(--bg-color);
}

/* Responsive adjustments for Markdown page */
@media (max-width: 900px) {
    .markdown-container {
        grid-template-columns: 1fr;
        height: auto; /* Let it grow on mobile */
    }
    #markdown-input, .preview-content {
        height: 40vh; /* Give each panel a fixed height */
    }
}