/* --- CORE STYLES (Original) --- */
:root {
    --bg-dark: #0f172a;
    --text-light: #f8fafc;
    --accent: #38bdf8;
    --card-bg: #ffffff;
    --border: #e2e8f0;
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

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

body {
    font-family: 'Inter', system-ui, sans-serif;
    color: #1e293b;
    line-height: 1.6;
    background-color: #f1f5f9;
    overflow-x: hidden; /* Prevents scroll animation glitches */
}

.container { max-width: 1000px; margin: 0 auto; padding: 40px 20px; }

/* Navbar Upgraded */
.navbar {
    background: var(--bg-dark);
    color: white;
    padding: 1rem 0;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}
.navbar .container { padding: 0 20px; display: flex; justify-content: space-between; align-items: center; }
.nav-links { display: flex; list-style: none; }
.nav-links li a { color: white; text-decoration: none; margin-left: 20px; font-weight: 500; font-size: 0.9rem; transition: var(--accent) 0.3s; }
.nav-links li a:hover { color: var(--accent); }
.logo span { color: var(--accent); }

/* Hero Section 2.0 */
#hero {
    background: linear-gradient(135deg, #0f172a 0%, #1e293b 100%);
    color: white;
    padding: 120px 20px;
    text-align: center;
}
#hero h1 { font-size: 3.5rem; margin-bottom: 10px; letter-spacing: -1px; }
#hero h3 { color: var(--accent); font-weight: 400; font-size: 1.6rem; }
.contact-strip { margin-top: 20px; display: flex; justify-content: center; gap: 20px; opacity: 0.8; }

/* Version 2.0 Buttons */
.btn-primary {
    background: var(--accent);
    color: var(--bg-dark);
    padding: 12px 28px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: 700;
    transition: var(--transition);
    display: inline-block;
}
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(56, 189, 248, 0.3);
}

/* Experience & Projects Sections */
.section-title { margin-bottom: 35px; font-size: 1.9rem; border-left: 5px solid var(--accent); padding-left: 15px; font-weight: 700; }

.exp-card, .project-card, .cert-item {
    background: var(--card-bg);
    padding: 25px;
    margin-bottom: 20px;
    border-radius: 12px;
    border: 1px solid var(--border);
    transition: var(--transition);
}

.exp-card:hover, .project-card:hover, .cert-item:hover {
    transform: translateY(-5px);
    border-color: var(--accent);
    box-shadow: 0 15px 30px rgba(0,0,0,0.08);
}

.exp-header { display: flex; justify-content: space-between; align-items: flex-start; }
.date { font-weight: bold; color: var(--accent); font-size: 0.9rem; }

.skills-tags { margin-top: 15px; display: flex; flex-wrap: wrap; gap: 8px; }
.skills-tags span {
    background: #e0f2fe;
    color: #0369a1;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
}

/* Certifications Enhanced */
.cert-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 20px;
}
.cert-badge {
    display: inline-block;
    background: #f1f5f9;
    color: #64748b;
    font-size: 0.65rem;
    font-weight: 700;
    padding: 2px 8px;
    border-radius: 4px;
    margin-bottom: 10px;
    text-transform: uppercase;
}
.highlight-cert { border-left: 4px solid var(--accent); }

/* --- CONTACT SECTION --- */
.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 50px;
    margin-top: 20px;
}
.info-item { display: flex; gap: 15px; margin-bottom: 25px; }
.info-item i { color: var(--accent); font-size: 1.2rem; margin-top: 5px; }

.contact-form { display: flex; flex-direction: column; gap: 15px; }
.form-group input, .form-group textarea {
    width: 100%;
    padding: 14px;
    border: 1px solid var(--border);
    border-radius: 8px;
    font-family: inherit;
    outline: none;
    transition: var(--transition);
}
.form-group input:focus, .form-group textarea:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.1);
}

.submit-btn {
    background: var(--bg-dark);
    color: white;
    padding: 14px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
}
.submit-btn:hover { background: var(--accent); color: var(--bg-dark); }

/* Footer */
.footer { background: var(--bg-dark); color: white; text-align: center; padding: 50px 0; margin-top: 50px; }

/* Responsive Adjustments */
@media (max-width: 768px) {
    .contact-wrapper { grid-template-columns: 1fr; }
    #hero h1 { font-size: 2.4rem; }
    .navbar .container { flex-direction: column; gap: 10px; }
    .nav-links li a { margin: 0 10px; }
    .cert-grid { grid-template-columns: 1fr; }
}