/* Standalone Professional Blog Styles */
:root {
    --bg-color: #ffffff;
    --text-color: #0f172a;
    --text-muted: #64748b;
    --primary-color: #2563eb;
    --primary-hover: #1d4ed8;
    --border-color: #e2e8f0;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    --hero-bg: #f8fafc;
    --header-bg: rgba(255, 255, 255, 0.95);
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --header-height: 80px;
}

[data-theme="dark"] {
    --bg-color: #020617;
    --text-color: #f8fafc;
    --text-muted: #94a3b8;
    --primary-color: #3b82f6;
    --primary-hover: #60a5fa;
    --border-color: #1e293b;
    --card-bg: #0f172a;
    --card-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.3);
    --hero-bg: #0f172a;
    --header-bg: rgba(2, 6, 23, 0.95);
}

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

/* Prevent horizontal scroll issues on mobile */
html, body {
    overflow-x: hidden;
    width: 100%;
    position: relative;
    -webkit-font-smoothing: antialiased;
    scroll-behavior: smooth;
}

body { 
    font-family: 'Inter', sans-serif; 
    line-height: 1.7; 
    background-color: var(--bg-color); 
    color: var(--text-color); 
    transition: background-color var(--transition); 
}

/* Navbar is now STATIC - it moves with the page flow */
main {
    padding-top: 0; /* Removed fixed offset */
    min-height: calc(100vh - var(--header-height));
}

.container { 
    max-width: 900px; 
    margin: 0 auto; 
    padding: 0 2rem; 
}

a { text-decoration: none; color: inherit; transition: var(--transition); }
ul { list-style: none; }
h1, h2, h3, h4 { line-height: 1.2; font-weight: 700; color: var(--text-color); }

/* Header - Positioned relatively so it doesn't overlap content */
.main-header { 
    position: relative; 
    width: 100%;
    z-index: 1000; 
    background-color: var(--header-bg); 
    border-bottom: 1px solid var(--border-color); 
}
.nav-container { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    height: var(--header-height); 
}
.logo { font-size: 1.5rem; font-weight: 800; letter-spacing: -0.02em; color: var(--primary-color); }
.logo span { color: var(--text-color); }

.nav-links { display: flex; gap: 2rem; align-items: center; }
.nav-links a { font-size: 0.95rem; font-weight: 600; color: var(--text-muted); }
.nav-links a:hover, .nav-links a.active { color: var(--primary-color); }

.nav-actions { display: flex; align-items: center; gap: 0.75rem; }

/* Hamburger Menu Icon */
.hamburger { 
    display: none; 
    background: none; 
    border: none; 
    cursor: pointer; 
    padding: 0.5rem; 
    z-index: 1100; 
    color: var(--text-color); 
}
.hamburger span { 
    display: block; 
    width: 22px; 
    height: 2px; 
    background: currentColor; 
    margin: 5px 0; 
    transition: var(--transition); 
}

/* Mobile Nav - Positioned relative to the header */
.mobile-nav { 
    position: absolute; 
    top: var(--header-height); 
    left: 0; 
    width: 100%; 
    height: 0; 
    background: var(--bg-color); 
    display: flex; 
    flex-direction: column; 
    align-items: center; 
    justify-content: flex-start; 
    gap: 2rem; 
    transition: height var(--transition), opacity var(--transition), visibility var(--transition); 
    z-index: 1050; 
    overflow: hidden;
    padding-top: 0;
    visibility: hidden;
    opacity: 0;
}
.mobile-nav.open { 
    height: 300px; /* Specific height for mobile menu when not fixed */
    padding-top: 2rem; 
    border-top: 1px solid var(--border-color); 
    border-bottom: 1px solid var(--border-color);
    visibility: visible;
    opacity: 1;
}
.mobile-nav a { font-size: 1.25rem; font-weight: 700; color: var(--text-color); }

/* Theme Toggles */
.theme-btn { background: none; border: none; cursor: pointer; color: var(--text-color); padding: 0.5rem; display: flex; }
.sun-icon { display: block; width: 22px; }
.moon-icon { display: none; width: 22px; }
[data-theme="dark"] .sun-icon { display: none; }
[data-theme="dark"] .moon-icon { display: block; }

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-weight: 600;
    font-size: 1rem;
    transition: var(--transition);
}
.btn-primary {
    background-color: var(--primary-color);
    color: white;
}
.btn-primary:hover {
    background-color: var(--primary-hover);
    transform: translateY(-2px);
}

/* Page Spacing - Natural Padding */
.page-header, .text-content {
    padding-top: 3rem; 
    padding-bottom: 3rem;
}

/* Hero Section Styling */
.hero { padding: 4rem 0 6rem; text-align: left; }
.hero-tag { color: var(--primary-color); font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; font-size: 0.875rem; margin-bottom: 1rem; }
.hero h1 { font-size: 4rem; margin-bottom: 0.5rem; color: var(--primary-color); letter-spacing: -0.04em; }
.hero-title { font-size: 1.5rem; color: var(--text-muted); margin-bottom: 2rem; }
.hero-summary p { font-size: 1.15rem; color: var(--text-muted); margin-bottom: 1.5rem; }
.hero-btns { display: flex; flex-direction: column; gap: 1.5rem; align-items: flex-start; }
.external-links { display: flex; align-items: center; gap: 1rem; font-weight: 600; color: var(--text-muted); font-size: 0.9rem; }
.external-links a:hover { color: var(--primary-color); }
.dot { opacity: 0.3; }

/* Blog Grid */
.blog-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin: 2rem 0 6rem; }
.blog-card { 
    background: var(--card-bg); 
    border: 1px solid var(--border-color); 
    border-radius: 12px; 
    padding: 2.5rem; 
    transition: var(--transition); 
}
.blog-card:hover { border-color: var(--primary-color); transform: translateY(-3px); box-shadow: var(--card-shadow); }
.card-date { font-size: 0.875rem; color: var(--text-muted); font-weight: 500; display: block; margin-bottom: 0.5rem; }
.read-more { color: var(--primary-color); font-weight: 700; margin-top: 1.5rem; display: inline-block; font-size: 0.95rem; }

/* Section Header */
.section-header { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 1rem; }
.link-more { color: var(--primary-color); font-weight: 700; font-size: 0.95rem; }

/* Footer */
.main-footer { padding: 4rem 0; border-top: 1px solid var(--border-color); color: var(--text-muted); font-size: 0.9rem; }

/* MOBILE & TABLET RESPONSIVENESS */
@media (max-width: 768px) {
    .container { padding: 0 1.5rem; }
    .nav-links { display: none; }
    .hamburger { display: block; }
    
    .hero { padding: 2rem 0 4rem; }
    .hero-content { padding-left: 0; } 
    .hero h1 { font-size: 2.75rem; word-wrap: break-word; }
    .hero-title { font-size: 1.25rem; }
    
    .blog-card { padding: 1.5rem; }
    .section-header { flex-direction: column; align-items: flex-start; gap: 0.5rem; }
    .page-header, .text-content { padding-top: 2rem; }
}

@media (max-width: 480px) {
    .container { padding: 0 1.25rem; } 
    .hero h1 { font-size: 2.25rem; line-height: 1.1; }
    .hero-btns { width: 100%; }
    .btn { width: 100%; text-align: center; }
}

/* Animations */
.hamburger.active span:nth-child(1) { transform: translateY(7px) rotate(45deg); }
.hamburger.active span:nth-child(2) { opacity: 0; }
.hamburger.active span:nth-child(3) { transform: translateY(-7px) rotate(-45deg); }

/* Text Content Interiors */
.back-link { display: inline-block; margin-bottom: 2rem; font-weight: 600; color: var(--primary-color); }
.post-header { margin-bottom: 3rem; }
.post-date { font-weight: 600; color: var(--text-muted); font-size: 0.9rem; text-transform: uppercase; letter-spacing: 0.05em; }
.text-content h1 { font-size: 3rem; margin-bottom: 1rem; line-height: 1.1; }
.text-content h2 { margin-top: 3rem; margin-bottom: 1rem; font-size: 1.75rem; }
.text-content p { font-size: 1.1rem; margin-bottom: 1.5rem; color: var(--text-muted); text-align: left; }

/* Skills Grid */
.skills-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(240px, 1fr)); gap: 1.5rem; margin: 2rem 0 4rem; }
.skill-category { padding: 1.5rem; border: 1px solid var(--border-color); border-radius: 12px; background: var(--card-bg); }
.skill-category h4 { color: var(--primary-color); margin-bottom: 0.5rem; }

/* Contact Styles */
.contact-grid { display: grid; grid-template-columns: 1fr; gap: 2rem; margin-top: 2rem; }
.contact-item { padding: 1.5rem; border: 1px solid var(--border-color); border-radius: 12px; }
.contact-socials { display: flex; gap: 1rem; margin-top: 0.5rem; }
.contact-socials a { color: var(--primary-color); font-weight: 700; }