/* --- Global Styles & Reset --- */
:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --accent-hover: #0284c7;
    --border-color: #334155;
    --font-family: 'Inter', sans-serif;
}

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

html {
    scroll-behavior: smooth;
}

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

.container {
    max-width: 1100px;
    margin: 0 auto;
    padding: 0 20px;
}

a {
    text-decoration: none;
    color: inherit;
    transition: all 0.3s ease;
}

ul {
    list-style: none;
}

/* --- Typography Helpers --- */
.section-title {
    font-size: 2rem;
    margin-bottom: 1.5rem;
    position: relative;
    display: inline-block;
}

.section-title::after {
    content: '';
    display: block;
    width: 50%;
    height: 4px;
    background: var(--accent-color);
    margin-top: 6px;
    border-radius: 2px;
}

/* --- Header / Navigation --- */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    background-color: rgba(15, 23, 42, 0.9);
    backdrop-filter: blur(10px);
    z-index: 1000;
    border-bottom: 1px solid var(--border-color);
}

.nav-container {
    display: flex;
    justify-content: space-between;
    align-items: center;
    height: 70px;
}

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-color);
}

.nav-links {
    display: flex;
    gap: 20px;
}

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

/* --- Hero Section --- */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 70px;
}

.badge {
    background: rgba(56, 189, 248, 0.1);
    color: var(--accent-color);
    padding: 6px 14px;
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(56, 189, 248, 0.3);
}

.hero-content h2 {
    font-size: 3.5rem;
    margin: 15px 0;
}

.highlight {
    color: var(--accent-color);
}

.hero-content p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin-bottom: 30px;
}

.hero-cta {
    display: flex;
    gap: 15px;
}

.btn {
    padding: 12px 24px;
    border-radius: 8px;
    font-weight: 600;
    display: inline-block;
}

.btn-primary {
    background-color: var(--accent-color);
    color: #0f172a;
}

.btn-primary:hover {
    background-color: var(--accent-hover);
    color: #fff;
}

.btn-secondary {
    border: 1px solid var(--border-color);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background-color: var(--card-bg);
}

/* --- Sections Styling --- */
section {
    padding: 80px 0;
}

.about-text {
    color: var(--text-secondary);
    font-size: 1.1rem;
    max-width: 800px;
}

/* --- Skills --- */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(140px, 1fr));
    gap: 15px;
}

.skill-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 20px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    transition: transform 0.3s ease;
}

.skill-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.skill-card i {
    font-size: 2rem;
    color: var(--accent-color);
}

/* --- Projects --- */
.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 25px;
}

.project-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 25px;
    display: flex;
    flex-direction: column;
    justify-content: space-between;
    transition: transform 0.3s ease, border-color 0.3s ease;
}

.project-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-color);
}

.project-info h4 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.project-info p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    margin-bottom: 20px;
}

.tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.tags span {
    background-color: var(--bg-color);
    color: var(--accent-color);
    font-size: 0.8rem;
    padding: 4px 10px;
    border-radius: 4px;
}

.project-links {
    display: flex;
    gap: 15px;
}

.project-link {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
}

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

/* --- Footer --- */
footer {
    background-color: #0b1120;
    border-top: 1px solid var(--border-color);
    padding: 60px 0 30px;
    text-align: center;
}

.email-btn {
    display: inline-block;
    font-size: 1.2rem;
    color: var(--accent-color);
    margin: 20px 0;
    font-weight: 600;
}

.social-links {
    display: flex;
    justify-content: center;
    gap: 20px;
    margin-bottom: 30px;
}

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

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

.copyright {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* --- Mobile Responsiveness --- */
@media (max-width: 768px) {
    .hero-content h2 {
        font-size: 2.5rem;
    }

    .nav-links {
        gap: 12px;
        font-size: 0.9rem;
    }
}