/* ===== Google Font ===== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap');

/* ===== CSS Variables (OPTION 1: Modern Academic Blue) ===== */
:root {
    --primary: #0B3C5D;
    --secondary: #1E5F8A;
    --accent: #F4C430;

    --bg-main: #F5F7FA;
    --bg-card: #FFFFFF;

    --text-main: #1F2933;
    --text-muted: #5A6B7B;
}

/* ===== Global ===== */
* {
    box-sizing: border-box;
}

body {
    margin: 0;
    font-family: 'Inter', sans-serif;
    background: var(--bg-main);
    color: var(--text-main);
    line-height: 1.7;
}

/* ===== Header ===== */
header {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    padding: 45px 20px 35px;
}

.header-container {
    max-width: 1100px;
    margin: auto;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.header-photo img {
    width: 180px;
    height: 180px;
    border-radius: 50%;
    border: 5px solid rgba(255,255,255,0.9);
    object-fit: cover;
    box-shadow: 0 12px 28px rgba(0,0,0,0.3);
}

.header-info {
    max-width: 600px;
}

.header-info h1 {
    margin: 0 0 8px;
    font-size: 2.3rem;
    font-weight: 700;
}

.header-info .designation {
    margin: 0 0 12px;
    font-size: 1.05rem;
    opacity: 0.95;
}

.header-info .profile-links a {
    color: var(--accent);
    font-weight: 500;
    text-decoration: none;
}

.header-info .profile-links a:hover {
    text-decoration: underline;
}

/* ===== Navigation ===== */
nav {
    background: #20B2AA; /* Light Sea Green */
    padding: 14px;
    text-align: center;
    position: sticky;
    top: 0;
    z-index: 1000;
    box-shadow: 0 4px 15px rgba(0,0,0,0.15);
}

nav a {
    color: #ffffff;
    margin: 0 16px;
    text-decoration: none;
    font-weight: 600;
    position: relative;
}

nav a::after {
    content: '';
    position: absolute;
    width: 0;
    height: 2px;
    background: #F4C430; /* Accent gold underline */
    left: 0;
    bottom: -6px;
    transition: width 0.3s ease;
}

nav a:hover::after {
    width: 100%;
}

/* ===== Main Sections ===== */
section {
    max-width: 1050px;
    margin: 45px auto;
    padding: 40px;
    background: var(--bg-card);
    border-radius: 16px;
    box-shadow: 0 20px 40px rgba(0,0,0,0.08);
    animation: fadeIn 0.6s ease-in;
    position: relative;
}

/* Accent Line */
section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    height: 5px;
    width: 100%;
    border-radius: 16px 16px 0 0;
    background: linear-gradient(90deg, var(--primary), var(--accent));
}

/* ===== Headings ===== */
h2 {
    font-size: 1.7rem;
    color: var(--primary);
    margin-bottom: 18px;
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    width: 70px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    left: 0;
    bottom: -8px;
}

/* ===== Lists ===== */
ul, ol {
    padding-left: 20px;
}

li {
    margin-bottom: 10px;
}

/* ===== Links ===== */
a {
    color: var(--secondary);
    text-decoration: none;
}

a:hover {
    color: var(--primary);
}

/* ===== Social Media Buttons ===== */
.social-buttons {
    margin-top: 20px;
}

.social-buttons .btn {
    display: inline-block;
    padding: 10px 22px;
    margin: 8px;
    border-radius: 30px;
    font-weight: 600;
    color: white;
    text-decoration: none;
    transition: all 0.3s ease;
    box-shadow: 0 8px 18px rgba(0,0,0,0.25);
}

.social-buttons .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 25px rgba(0,0,0,0.35);
}

.social-buttons .linkedin { background: #0A66C2; }
.social-buttons .github   { background: #24292E; }
.social-buttons .scholar  { background: #4285F4; }
.social-buttons .orcid    { background: #A6CE39; }

/* ===== Footer ===== */
footer {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: white;
    text-align: center;
    padding: 20px;
    font-size: 0.9rem;
    margin-top: 60px;
    box-shadow: 0 -4px 15px rgba(0,0,0,0.15);
}

/* ===== Animations ===== */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== Responsive ===== */
@media (max-width: 768px) {
    .header-container {
        text-align: center;
    }

    .header-info {
        text-align: center;
    }
}
.about-me {
    text-align: justify;
    text-justify: inter-word;
}