:root {
    --primary-color: #2d3748;
    --secondary-color: #4a5568;
    --accent-color: #667eea;
    --background-color: #f7fafc;
    --success-color: #48bb78;
    --error-color: #f56565;
    --transition-speed: 0.3s;
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    line-height: 1.6;
    background-color: var(--background-color);
    color: var(--primary-color);
    min-height: 100vh;
}

.container {
    max-width: 1000px;
    margin: 0 auto;
    padding: 2rem;
}

header {
    text-align: center;
    margin-bottom: 2rem;
    padding: 2rem 0;
    background: white;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

h1 {
    font-size: 2.5rem;
    color: var(--primary-color);
    margin-bottom: 0.5rem;
}

.date {
    color: var(--secondary-color);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

.stats {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.stat {
    background: var(--background-color);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    font-size: 0.9rem;
}

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

@media (max-width: 768px) {
    .main-content {
        grid-template-columns: 1fr;
    }
}

.journal-entry {
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
}

.toolbar {
    display: flex;
    gap: 1rem;
    margin-bottom: 1rem;
}

.toolbar button {
    background: none;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: all var(--transition-speed);
}

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

.toolbar button.active {
    color: var(--accent-color);
    background: var(--background-color);
}

textarea {
    width: 100%;
    min-height: 300px;
    padding: 1rem;
    border: 2px solid #e2e8f0;
    border-radius: 8px;
    margin-bottom: 1rem;
    font-size: 1.1rem;
    resize: vertical;
    font-family: inherit;
    transition: border-color var(--transition-speed);
}

textarea:focus {
    outline: none;
    border-color: var(--accent-color);
    box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.word-count {
    color: var(--secondary-color);
    font-size: 0.9rem;
    margin-bottom: 1rem;
}

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

button.save {
    background-color: var(--accent-color);
    color: white;
    border: none;
    padding: 0.75rem 1.5rem;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1rem;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

button.save:hover {
    background-color: #5a67d8;
    transform: translateY(-1px);
}

button.save:disabled {
    background-color: #cbd5e0;
    cursor: not-allowed;
    transform: none;
}

.mood-selector {
    display: flex;
    gap: 1rem;
}

.mood-option {
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 4px;
    transition: all var(--transition-speed);
}

.mood-option:hover {
    background: var(--background-color);
}

.mood-option.selected {
    background: var(--accent-color);
    color: white;
}

.previous-entries {
    background: white;
    padding: 1.5rem;
    border-radius: 12px;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.1);
    max-height: 600px;
    overflow-y: auto;
}

.previous-entries h2 {
    margin-bottom: 1rem;
    padding-bottom: 0.5rem;
    border-bottom: 2px solid var(--background-color);
}

.entry-card {
    background: var(--background-color);
    padding: 1.5rem;
    border-radius: 8px;
    margin-bottom: 1rem;
    transition: transform var(--transition-speed);
}

.entry-card:hover {
    transform: translateY(-2px);
}

.entry-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.entry-date {
    font-weight: 600;
    color: var(--secondary-color);
}

.entry-mood {
    color: var(--secondary-color);
}

.entry-text {
    color: var(--primary-color);
    white-space: pre-wrap;
    margin-top: 0.5rem;
    font-size: 0.95rem;
}

.notification {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    padding: 1rem 2rem;
    border-radius: 6px;
    color: white;
    animation: slideIn 0.3s ease-out;
    z-index: 1000;
}

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

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

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.search-box {
    width: 100%;
    padding: 0.75rem;
    border: 2px solid #e2e8f0;
    border-radius: 6px;
    margin-bottom: 1rem;
    font-size: 0.9rem;
}

.search-box:focus {
    outline: none;
    border-color: var(--accent-color);
}

.entry-actions {
    display: flex;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.entry-actions button {
    background: none;
    border: none;
    color: var(--secondary-color);
    cursor: pointer;
    padding: 0.25rem 0.5rem;
    font-size: 0.9rem;
    border-radius: 4px;
    transition: all var(--transition-speed);
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.entry-actions button:hover {
    color: var(--accent-color);
    background: rgba(102, 126, 234, 0.1);
}

.entry-actions button.edit {
    color: var(--accent-color);
}

.entry-actions button.delete {
    color: var(--error-color);
}

.tags {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.tag {
    background: rgba(102, 126, 234, 0.1);
    color: var(--accent-color);
    padding: 0.25rem 0.75rem;
    border-radius: 20px;
    font-size: 0.8rem;
}

.confirmation-dialog {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    background: white;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    z-index: 1001;
}

.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 1000;
}

.dialog-buttons {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

.dialog-buttons button {
    padding: 0.5rem 1rem;
    border-radius: 6px;
    border: none;
    cursor: pointer;
    font-size: 0.9rem;
}

.dialog-buttons .confirm {
    background: var(--error-color);
    color: white;
}

.dialog-buttons .cancel {
    background: var(--secondary-color);
    color: white;
}