/* Design System & CSS Variables */
:root {
    --bg-color: #f6f5f2;
    --text-color: #1a1a1a;
    --accent-color: #795548;
    --link-color: #2980b9;
    --link-hover-color: #1a5276;
    --border-color: rgba(0, 0, 0, 0.08);
    --muted-opacity: 0.18;
    --font-serif: 'Playfair Display', Georgia, Cambria, serif;
    --font-sans: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    --font-logo: 'Cinzel', serif;
    --toggle-bg: rgba(0, 0, 0, 0.04);
    --toggle-border: rgba(0, 0, 0, 0.08);
}

[data-theme="dark"] {
    --bg-color: #0c0c0c;
    --text-color: #e5e5e5;
    --accent-color: #d7ccc8;
    --link-color: #5dade2;
    --link-hover-color: #85c1e9;
    --border-color: rgba(255, 255, 255, 0.08);
    --muted-opacity: 0.18;
    --toggle-bg: rgba(255, 255, 255, 0.04);
    --toggle-border: rgba(255, 255, 255, 0.08);
}

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

body {
    background-color: var(--bg-color);
    color: var(--text-color);
    font-family: var(--font-sans);
    line-height: 1.6;
    transition: background-color 0.6s cubic-bezier(0.25, 1, 0.5, 1), color 0.6s cubic-bezier(0.25, 1, 0.5, 1);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
}

/* Header & Navigation */
.header {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem 2rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--border-color);
    transition: border-color 0.6s ease;
}

.logo {
    font-family: var(--font-logo);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: 0.15em;
    color: var(--text-color);
}

/* Theme Toggle Button (Top Right) */
.theme-toggle {
    background: var(--toggle-bg);
    border: 1px solid var(--toggle-border);
    cursor: pointer;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-color);
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    position: relative;
    overflow: hidden;
    backdrop-filter: blur(10px);
}

.theme-toggle:hover {
    transform: scale(1.08);
    background: var(--border-color);
    border-color: var(--text-color);
}

.theme-toggle svg {
    width: 20px;
    height: 20px;
    position: absolute;
    transition: transform 0.5s cubic-bezier(0.6, -0.28, 0.735, 0.045), opacity 0.5s ease;
}

/* Sun/Moon Icon Transitions */
[data-theme="light"] .theme-toggle .sun-icon {
    transform: translateY(0);
    opacity: 1;
}

[data-theme="light"] .theme-toggle .moon-icon {
    transform: translateY(40px);
    opacity: 0;
}

[data-theme="dark"] .theme-toggle .sun-icon {
    transform: translateY(-40px);
    opacity: 0;
}

[data-theme="dark"] .theme-toggle .moon-icon {
    transform: translateY(0);
    opacity: 1;
}

/* Main Container */
.container {
    max-width: 1100px;
    width: 100%;
    margin: 5rem auto;
    padding: 0 2rem;
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    gap: 7rem;
}

/* Blog Post Styling */
.post {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.post-title {
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 0.25em;
    font-weight: 600;
    color: var(--accent-color);
    opacity: 0.8;
}

/* High-Impact Serif Paragraphs */
.post-content {
    font-family: var(--font-serif);
    font-size: 50px;
    line-height: 1.35;
    font-weight: 400;
    opacity: var(--muted-opacity);
    transition: opacity 0.5s cubic-bezier(0.25, 1, 0.5, 1), transform 0.5s cubic-bezier(0.25, 1, 0.5, 1);
    cursor: default;
    transform: translateY(0);
    position: relative;
    word-break: break-word;
}

/* Hover State - High Opacity and Readable */
.post-content:hover {
    opacity: 1;
    transform: translateY(-2px);
}

/* Custom Links for LinkedIn and Email */
.custom-link {
    color: var(--link-color);
    text-decoration: none;
    position: relative;
    display: inline-block;
    transition: color 0.3s ease;
    font-weight: 500;
}

.custom-link::after {
    content: '';
    position: absolute;
    width: 100%;
    transform: scaleX(0);
    height: 3px;
    bottom: 2px;
    left: 0;
    background-color: var(--link-hover-color);
    transform-origin: bottom right;
    transition: transform 0.3s cubic-bezier(0.25, 1, 0.5, 1);
}

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

.custom-link:hover::after {
    transform: scaleX(1);
    transform-origin: bottom left;
}

/* Footer Styling */
.footer {
    width: 100%;
    max-width: 1100px;
    margin: 0 auto;
    padding: 3rem 2rem;
    text-align: center;
    font-size: 0.85rem;
    letter-spacing: 0.1em;
    opacity: 0.6;
    border-top: 1px solid var(--border-color);
    transition: border-color 0.6s ease;
}

/* Responsive adjustments */
@media (max-width: 768px) {
    .container {
        gap: 5rem;
        margin: 3rem auto;
    }
    
    .post-content {
        font-size: 32px; /* Scales down elegantly on mobile */
    }
    
    .header, .footer {
        padding: 2rem 1.5rem;
    }
}
.custom-link > a {
    color: var(--link-color);
    text-decoration: none
}