/* --- CSS STYLES --- */
:root {
    --bg-color: #0f172a; /* Dark background */
    --card-bg: rgba(30, 41, 59, 0.8); /* Glassmorphism card */
    --card-border: rgba(255, 255, 255, 0.1);
    --accent-color: #18c8c8; /* Teal accent color */
    --text-main: #f8fafc;
    --text-dim: #94a3b8;
}

* {
    margin: 0; padding: 0; box-sizing: border-box;
    font-family: 'Poppins', sans-serif;
}

body {
    background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 40px 20px;
}

/* Main Container holding Sidebar and Content */
.main-container {
    display: flex;
    width: 100%;
    max-width: 1100px;
    gap: 30px;
    height: 85vh; /* Fixed height for scrolling content */
    max-height: 700px;
}

/* --- SIDEBAR (Left Side) --- */
.sidebar {
    flex: 0 0 280px; /* Fixed width for sidebar */
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 30px;
    text-align: center;
    display: flex;
    flex-direction: column;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.profile-img {
    width: 120px; height: 120px;
    margin: 0 auto 20px;
    border-radius: 20px;
    overflow: hidden;
    border: 3px solid var(--card-border);
}
.profile-img img { width: 100%; height: 100%; object-fit: cover; }

.name { font-size: 22px; font-weight: 600; margin-bottom: 5px; }
.title { 
    color: var(--accent-color); 
    font-size: 13px; 
    background: rgba(24,200,200,0.1); 
    padding: 5px 10px; 
    border-radius: 5px; 
    display: inline-block; 
    margin-bottom: 25px; 
}

/* Navigation Menu in Sidebar */
.nav-menu { 
    flex-grow: 1; /* Pushes social icons to bottom */
    display: flex; flex-direction: column; gap: 5px;
    text-align: left;
}
.nav-link {
    padding: 12px 20px;
    cursor: pointer;
    color: var(--text-dim);
    transition: 0.3s;
    font-weight: 500;
    border-radius: 10px;
    display: flex; align-items: center; gap: 10px;
}
.nav-link i { width: 20px; text-align: center; }
.nav-link:hover, .nav-link.active {
    color: var(--accent-color);
    background: rgba(255,255,255,0.05);
}

.social-icons { margin-top: 20px; display: flex; justify-content: center; gap: 10px; }
.social-icons a { 
    width: 35px; height: 35px; 
    display: flex; align-items: center; justify-content: center; 
    background: rgba(255,255,255,0.05); 
    color: var(--text-dim); 
    border-radius: 50%; 
    text-decoration: none; 
    transition: 0.3s; 
}
.social-icons a:hover { background: var(--accent-color); color: #fff; }


/* --- RIGHT CONTENT AREA --- */
.content-area {
    flex: 1; /* Takes remaining width */
    background: var(--card-bg);
    backdrop-filter: blur(15px);
    border: 1px solid var(--card-border);
    border-radius: 20px;
    padding: 40px;
    overflow-y: auto; /* Enables scrolling inside content */
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    position: relative;
}

/* Custom Scrollbar for Content Area */
.content-area::-webkit-scrollbar { width: 6px; }
.content-area::-webkit-scrollbar-track { background: transparent; }
.content-area::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 10px; }
.content-area::-webkit-scrollbar-thumb:hover { background: var(--accent-color); }

.section { display: none; animation: fadeIn 0.5s ease; }
.section.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.section-heading {
    font-size: 28px; font-weight: 700; margin-bottom: 30px;
    position: relative; padding-bottom: 10px;
}
.section-heading::after {
    content: ''; position: absolute; bottom: 0; left: 0;
    width: 50px; height: 3px; background: var(--accent-color); border-radius: 2px;
}

.about-text { color: var(--text-dim); line-height: 1.8; }

/* About Info Items */
.info-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 20px; margin-top: 30px; }
.info-box { 
    background: rgba(255,255,255,0.03); 
    padding: 20px; border-radius: 15px; 
    display: flex; align-items: center; gap: 15px; 
    border: 1px solid var(--card-border); 
}
.info-box i { font-size: 24px; color: var(--accent-color); }
.info-box h4 { font-size: 14px; color: var(--text-dim); margin-bottom: 5px; }
.info-box span { font-weight: 500; font-size: 15px; }
.info-box a { color: var(--text-main); text-decoration: none; transition: 0.3s; }
.info-box a:hover { color: var(--accent-color); }

/* Resume/Timeline items */
.timeline-item {
    padding-left: 30px; position: relative; 
    border-left: 2px solid rgba(255,255,255,0.1); 
    margin-bottom: 30px;
}
.timeline-item::before {
    content: ''; position: absolute; left: -6px; top: 5px; 
    width: 10px; height: 10px; 
    background: var(--accent-color); border-radius: 50%;
}
.timeline-date { color: var(--accent-color); font-size: 13px; margin-bottom: 5px; display: block; }
.timeline-title { font-size: 18px; margin-bottom: 10px; }
.timeline-desc { color: var(--text-dim); font-size: 14px; line-height: 1.6; }

/* Contact Section Elements */
.location-link {
    display: flex; align-items: center; gap: 15px; 
    background: rgba(255,255,255,0.05); padding: 20px; 
    border-radius: 15px; text-decoration: none; color: var(--text-main); 
    border: 1px solid var(--card-border); margin-bottom: 30px; transition: 0.3s;
}
.location-link:hover { border-color: var(--accent-color); }
.location-link i { font-size: 30px; color: var(--accent-color); }
.location-link h4 { margin-bottom: 5px; }
.location-link p { color: var(--text-dim); font-size: 14px; }

.contact-form { display: flex; flex-direction: column; gap: 20px; }
.input-group { display: flex; gap: 20px; }
.contact-form input, .contact-form textarea {
    flex: 1; padding: 15px; border-radius: 10px; 
    border: 1px solid var(--card-border); 
    background: rgba(255,255,255,0.05); color: #fff; outline: none; transition: 0.3s;
}
.contact-form input:focus, .contact-form textarea:focus { border-color: var(--accent-color); }
.submit-btn {
    padding: 15px 30px; border-radius: 10px; border: none; 
    background: var(--accent-color); color: #0f172a; 
    font-weight: 600; cursor: pointer; align-self: flex-start; transition: 0.3s;
}
.submit-btn:hover { box-shadow: 0 0 15px rgba(24, 200, 200, 0.4); transform: translateY(-2px); }

/* --- RESPONSIVE DESIGN --- */
@media (max-width: 900px) {
    .main-container { flex-direction: column; height: auto; max-height: none; }
    .sidebar { width: 100%; flex: auto; padding: 20px; }
    .nav-menu { flex-direction: row; flex-wrap: wrap; justify-content: center; gap: 10px; margin-bottom: 20px; }
    .nav-link { padding: 10px 15px; font-size: 14px; }
    .nav-link span { display: none; } /* Hide text on small screens, show icons */
    .nav-link i { margin: 0; font-size: 18px; }
    .content-area { height: auto; overflow: visible; padding: 30px 20px; }
    .info-grid { grid-template-columns: 1fr; }
    .input-group { flex-direction: column; }
}