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

body {
    background-color: var(--bg-primary);
    color: var(--text-primary);
    font-family: var(--font-body);
    line-height: 1.6;
    overflow-x: hidden;
}

h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--text-primary);
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition-fast);
}

ul {
    list-style: none;
}

/* Typography styles */
.gradient-text {
    background: linear-gradient(135deg, var(--accent-blue), var(--accent-green));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-title {
    font-size: 2.5rem;
    margin-bottom: 3rem;
    text-align: center;
}

/* Layout */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 2rem;
}

section {
    padding: 6rem 0;
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.8s ease, transform 0.8s ease;
}

section.visible {
    opacity: 1;
    transform: translateY(0);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    width: 100%;
    height: var(--nav-height);
    background: var(--bg-glass);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-glass);
    z-index: 1000;
    display: flex;
    align-items: center;
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
}

.nav-logo {
    font-family: var(--font-heading);
    font-weight: 800;
    font-size: 1.5rem;
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 2rem;
}

.nav-links a {
    font-weight: 500;
    font-size: 0.95rem;
    color: var(--text-secondary);
}

.nav-links a:hover {
    color: var(--accent-green);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: var(--nav-height);
}

/* Abstract Background Glow */
.hero::before {
    content: '';
    position: absolute;
    top: 20%;
    right: 10%;
    width: 400px;
    height: 400px;
    background: var(--accent-blue);
    filter: blur(150px);
    opacity: 0.15;
    border-radius: 50%;
    z-index: -1;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: 10%;
    left: 10%;
    width: 300px;
    height: 300px;
    background: var(--accent-green);
    filter: blur(150px);
    opacity: 0.15;
    border-radius: 50%;
    z-index: -1;
}

.hero-content {
    max-width: 800px;
}

.hero p.greeting {
    color: var(--accent-green);
    font-weight: 600;
    letter-spacing: 1px;
    margin-bottom: 1rem;
}

.hero h1 {
    font-size: 4.5rem;
    line-height: 1.1;
    margin-bottom: 1.5rem;
    letter-spacing: -1.5px;
}

.hero p.description {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 2.5rem;
    max-width: 600px;
}

.btn {
    display: inline-block;
    padding: 1rem 2rem;
    border-radius: 8px;
    font-weight: 600;
    transition: var(--transition-fast);
}

.btn-primary {
    background: var(--gradient-text);
    color: #fff;
    box-shadow: 0 4px 15px rgba(16, 185, 129, 0.2);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(16, 185, 129, 0.3);
}

.btn-outline {
    border: 1px solid var(--accent-blue);
    color: var(--text-primary);
    margin-left: 1rem;
}

.btn-outline:hover {
    background: rgba(59, 130, 246, 0.1);
}

/* About Section */
.about-card {
    background: var(--bg-secondary);
    border: 1px solid var(--border-glass);
    border-radius: 16px;
    padding: 3rem;
    margin-top: 2rem;
}

.about-card p {
    color: var(--text-secondary);
    font-size: 1.1rem;
    margin-bottom: 1rem;
}

/* Projects Section */
.projects-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 2rem;
}

.project-card {
    background: var(--bg-secondary);
    border-radius: 16px;
    overflow: hidden;
    border: 1px solid var(--border-glass);
    transition: var(--transition-medium);
}

.project-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent-blue);
}

.project-img {
    width: 100%;
    height: 250px;
    object-fit: cover;
    border-bottom: 1px solid var(--border-glass);
}

.project-content {
    padding: 2rem;
}

.project-content h3 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
}

.project-content p {
    color: var(--text-secondary);
    margin-bottom: 1.5rem;
}

/* Journal Section */
.journal-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.journal-card {
    background: rgba(10, 22, 40, 0.4);
    border-radius: 12px;
    padding: 1.5rem;
    border: 1px solid var(--border-glass);
    transition: var(--transition-fast);
}

.journal-card:hover {
    background: var(--bg-secondary);
    border-color: var(--accent-green);
}

.journal-date {
    font-size: 0.85rem;
    color: var(--accent-green);
    margin-bottom: 0.5rem;
    display: block;
}

.journal-img {
    width: 100%;
    height: 180px;
    border-radius: 8px;
    object-fit: cover;
    margin-bottom: 1.5rem;
}

/* Contact Section & Footer */
.contact-container {
    text-align: center;
    max-width: 600px;
    margin: 0 auto;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 1.5rem;
    margin-top: 2rem;
}

.social-links a {
    color: var(--text-secondary);
    font-size: 1.5rem;
}

.social-links a:hover {
    color: var(--accent-blue);
}

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

/* Responsive */
@media (max-width: 768px) {
    .hero h1 { font-size: 3rem; }
    .nav-links { display: none; /* Add mobile menu later if needed */ }
}