:root {
    /* Color Palette */
    --bg-color: #1a202c; /* Very dark slate */
    --card-bg: #2d3748; /* Slate blue-ish grey */
    --text-primary: #f7fafc;
    --text-secondary: #a0aec0;
    --accent-mint: #81e6d9; /* Minty green */
    --accent-slate: #667eea; /* Slate blue accent */
    --highlight: #38b2ac;
    
    /* Typography */
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    
    /* Spacing */
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 2rem;
    --spacing-xl: 4rem;
    
    /* Transitions */
    --transition-speed: 0.3s;
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* Layout */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-lg);
}

header {
    padding: var(--spacing-xl) 0;
    text-align: center;
    border-bottom: 1px solid rgba(129, 230, 217, 0.1);
    margin-bottom: var(--spacing-xl);
}

header h1 {
    font-size: 3rem;
    font-weight: 800;
    background: linear-gradient(135deg, var(--accent-mint), var(--accent-slate));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: var(--spacing-sm);
}

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

/* Journal Grid */
.journal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: var(--spacing-lg);
    padding-bottom: var(--spacing-xl);
}

/* Cards */
.entry-card {
    background: var(--card-bg);
    border-radius: 12px;
    overflow: hidden;
    transition: transform var(--transition-speed) ease, box-shadow var(--transition-speed) ease;
    border: 1px solid rgba(255, 255, 255, 0.05);
    display: flex;
    flex-direction: column;
}

.entry-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0, 0, 0, 0.2);
    border-color: var(--accent-mint);
}

.card-image {
    height: 200px;
    background-color: #4a5568;
    background-size: cover;
    background-position: center;
    position: relative;
}

.card-content {
    padding: var(--spacing-lg);
    flex-grow: 1;
    display: flex;
    flex-direction: column;
}

.card-date {
    font-size: 0.85rem;
    color: var(--accent-mint);
    margin-bottom: var(--spacing-sm);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.card-title {
    font-size: 1.5rem;
    margin-bottom: var(--spacing-sm);
    color: var(--text-primary);
}

.card-excerpt {
    color: var(--text-secondary);
    margin-bottom: var(--spacing-lg);
    flex-grow: 1;
}

.card-tags {
    display: flex;
    gap: var(--spacing-sm);
    margin-bottom: var(--spacing-md);
}

.tag {
    background: rgba(102, 126, 234, 0.2);
    color: var(--accent-slate);
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.8rem;
    font-weight: 600;
}

.read-more {
    display: inline-block;
    color: var(--accent-mint);
    text-decoration: none;
    font-weight: 600;
    transition: color var(--transition-speed);
}

.read-more:hover {
    color: #fff;
}

/* Modal/Entry View */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(26, 32, 44, 0.95);
    z-index: 1000;
    overflow-y: auto;
    backdrop-filter: blur(5px);
}

.modal.active {
    display: block;
}

.modal-content {
    max-width: 800px;
    margin: var(--spacing-xl) auto;
    padding: var(--spacing-xl);
    background: var(--card-bg);
    border-radius: 16px;
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    position: relative;
}

.close-modal {
    position: absolute;
    top: var(--spacing-lg);
    right: var(--spacing-lg);
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    transition: color var(--transition-speed);
}

.close-modal:hover {
    color: var(--accent-mint);
}

.markdown-body {
    color: var(--text-primary);
}

.markdown-body h1, .markdown-body h2, .markdown-body h3 {
    color: var(--accent-mint);
    margin-top: 1.5em;
    margin-bottom: 0.5em;
}

.markdown-body p {
    margin-bottom: 1em;
}

.markdown-body code {
    background: rgba(0,0,0,0.3);
    padding: 0.2em 0.4em;
    border-radius: 4px;
    font-family: monospace;
    color: var(--accent-slate);
}

.markdown-body pre {
    background: #1a202c;
    padding: 1em;
    border-radius: 8px;
    overflow-x: auto;
    margin-bottom: 1em;
}

.markdown-body img {
    max-width: 100%;
    border-radius: 8px;
    margin: 1em 0;
}

/* Responsive */
@media (max-width: 768px) {
    header h1 {
        font-size: 2rem;
    }
    
    .modal-content {
        margin: 0;
        min-height: 100vh;
        border-radius: 0;
    }
}