:root {
    --bg-color: #0f172a;
    --card-bg: #1e293b;
    --text-color: #f8fafc;
    --gray-text: #94a3b8;
    --accent-color: #38bdf8;
    --accent-2: #22d3ee;
}

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

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: radial-gradient(1200px 500px at 15% -10%, rgba(34, 211, 238, 0.15), transparent 60%),
                radial-gradient(1000px 400px at 100% 0%, rgba(56, 189, 248, 0.08), transparent 60%),
                var(--bg-color);
    color: var(--text-color);
    line-height: 1.6;
    scroll-behavior: smooth;
}

/* Navigation */
nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 10%;
    background: rgba(15, 23, 42, 0.95);
    position: fixed;
    width: 100%;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

.logo { font-size: 1.5rem; font-weight: bold; }
.logo span { color: var(--accent-color); }
.menu-toggle {
    display: none;
    border: 1px solid rgba(255,255,255,0.2);
    background: transparent;
    color: var(--text-color);
    border-radius: 8px;
    width: 40px;
    height: 40px;
    cursor: pointer;
}

nav ul { display: flex; list-style: none; align-items: center; }
nav ul li { margin-left: 20px; }
nav ul li a { text-decoration: none; color: var(--text-color); transition: 0.3s; font-size: 0.9rem; }
nav ul li a:hover { color: var(--accent-color); }
nav ul li a.active { color: var(--accent-color); }
.nav-e5 { color: var(--accent-color) !important; font-weight: bold; border: 1px solid var(--accent-color); padding: 5px 12px; border-radius: 5px; }

/* Header */
header {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    padding: 120px 20px 60px;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); margin-bottom: 10px; }
.subtitle { font-size: 1.2rem; color: var(--gray-text); margin-bottom: 30px; letter-spacing: 1px; }
.subtitle span { color: var(--accent-color); font-weight: bold; }

.bio-container {
    max-width: 800px;
    margin: 0 auto 40px;
    background: rgba(30, 41, 59, 0.5);
    padding: 40px;
    border-radius: 20px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.bio { font-size: 1.2rem; margin-bottom: 15px; }
.bio-details { color: var(--gray-text); margin-bottom: 25px; }

.school-info {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
    background: var(--bg-color);
    padding: 20px;
    border-radius: 12px;
    text-align: left;
    border-left: 4px solid var(--accent-color);
}

.school-info p { font-size: 0.9rem; margin: 0; }
.school-info i { color: var(--accent-color); margin-right: 10px; width: 20px; }

/* Buttons */
.header-buttons { margin-top: 30px; }
.btn {
    display: inline-block;
    padding: 14px 30px;
    background: var(--accent-color);
    color: var(--bg-color);
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: 0.3s;
}

.btn-outline {
    background: transparent;
    border: 2px solid var(--accent-color);
    color: var(--accent-color);
    margin-left: 15px;
}

.btn:hover { opacity: 0.9; transform: translateY(-3px); box-shadow: 0 10px 20px rgba(56, 189, 248, 0.2); }

/* Projects */
section { padding: 100px 10% 60px; }
.section-title { text-align: center; margin-bottom: 60px; font-size: 2.2rem; }

.project-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 30px;
}

.project-card {
    background: var(--card-bg);
    padding: 40px;
    border-radius: 20px;
    transition: 0.4s;
    border: 1px solid rgba(255,255,255,0.03);
    position: relative;
    overflow: hidden;
}

.project-card:hover { transform: translateY(-10px); border-color: var(--accent-color); }
.project-card .icon { font-size: 3rem; color: var(--accent-color); margin-bottom: 20px; }
.project-card h3 { margin-bottom: 12px; font-size: 1.4rem; }
.project-card p { color: var(--gray-text); font-size: 0.95rem; margin-bottom: 20px; }
.tech { font-size: 0.8rem; background: #0f172a; padding: 6px 12px; border-radius: 6px; color: var(--accent-color); font-weight: bold; }

/* Skills */
.skills-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
    gap: 24px;
}

.skill-card {
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.05);
    border-radius: 16px;
    padding: 28px;
}

.skill-card h3 {
    margin-bottom: 15px;
}

.chips {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.chips span {
    font-size: 0.85rem;
    padding: 6px 10px;
    border-radius: 20px;
    border: 1px solid rgba(34, 211, 238, 0.45);
    background: rgba(15, 23, 42, 0.8);
    color: var(--text-color);
}

/* Contact Form */
.contact-direct {
    max-width: 600px;
    margin: 0 auto 20px;
    background: var(--card-bg);
    border: 1px solid rgba(255,255,255,0.08);
    border-radius: 14px;
    padding: 18px 20px;
}

.contact-direct p {
    margin: 6px 0;
}

.contact-direct i {
    color: var(--accent-color);
    width: 20px;
    margin-right: 8px;
}

.contact-direct a {
    color: var(--accent-2);
    text-decoration: none;
}

.contact-direct a:hover {
    text-decoration: underline;
}

form { max-width: 600px; margin: 0 auto; background: var(--card-bg); padding: 40px; border-radius: 20px; }
form input, form textarea {
    width: 100%;
    padding: 15px;
    margin-bottom: 20px;
    border-radius: 8px;
    border: 1px solid rgba(255,255,255,0.1);
    background: var(--bg-color);
    color: white;
    font-size: 1rem;
}

form button { width: 100%; cursor: pointer; border: none; }

footer { text-align: center; padding: 60px; color: var(--gray-text); border-top: 1px solid rgba(255,255,255,0.05); }

.reveal {
    opacity: 0;
    transform: translateY(24px);
    transition: opacity 0.7s ease, transform 0.7s ease;
}

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

/* Mobile */
@media (max-width: 768px) {
    nav { padding: 15px 5%; }
    .menu-toggle { display: inline-flex; align-items: center; justify-content: center; }
    nav ul {
        position: absolute;
        top: 72px;
        right: 5%;
        width: min(90vw, 280px);
        background: #111b31;
        border: 1px solid rgba(255,255,255,0.08);
        border-radius: 12px;
        padding: 14px;
        flex-direction: column;
        align-items: flex-start;
        gap: 8px;
        display: none;
    }
    nav ul.open { display: flex; }
    nav ul li { margin-left: 0; width: 100%; }
    nav ul li a { display: block; width: 100%; padding: 8px; }
    h1 { font-size: 2.5rem; }
    .bio-container { padding: 24px; }
    .school-info { text-align: left; }
    .btn-outline { margin-left: 0; margin-top: 15px; width: 100%; }
    .btn { width: 100%; }
}