body {
    margin: 0;
    font-family: 'Montserrat', Arial, sans-serif;
    min-height: 100vh;
    background: radial-gradient(ellipse 120% 100% at 50% 0%, #23272b 70%, #3498db 100%);
    color: #f5f5f5;
    overflow-x: hidden;
}

.main-nav {
    position: fixed;
    top: 0; left: 0; width: 100%;
    background: rgba(34,34,34,0.97);
    box-shadow: 0 2px 12px rgba(52,152,219,0.10);
    display: flex; justify-content: center; gap: 32px;
    padding: 14px 0; z-index: 100;
    animation: fadeDown 1s;
}
@keyframes fadeDown {
    from { opacity: 0; transform: translateY(-30px);}
    to { opacity: 1; transform: translateY(0);}
}
.main-nav a {
    color: #f5f5f5;
    font-weight: 600;
    text-decoration: none;
    font-size: 1.08rem;
    transition: color 0.2s, background 0.2s, transform 0.2s;
    padding: 8px 18px;
    border-radius: 6px;
    display: flex; align-items: center; gap: 8px;
    letter-spacing: 1px;
}
.main-nav a:hover {
    color: #fff;
    background: #3498db;
    transform: scale(1.08);
    box-shadow: 0 2px 12px #00eaff44;
}

.hero {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 70vh;
    padding-top: 120px;
    padding-bottom: 40px;
    position: relative;
    z-index: 1;
}
.hero-bg {
    position: absolute;
    top: 0; left: 50%; transform: translateX(-50%);
    width: 100vw; height: 100vh;
    background: radial-gradient(ellipse 70% 60% at 50% 0%, #00eaff22 0%, transparent 100%);
    z-index: 0;
    pointer-events: none;
}
.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
}
.hero-avatar {
    width: 120px;
    height: 120px;
    border-radius: 50%;
    object-fit: cover;
    box-shadow: 0 6px 32px #00eaff44;
    border: 4px solid #3498db;
    background: linear-gradient(120deg, #23272b 80%, #3498db 100%);
    margin-bottom: 24px;
    transition: transform 0.3s, box-shadow 0.3s;
}
.hero-avatar:hover {
    transform: scale(1.09) rotate(-2deg);
    box-shadow: 0 12px 48px #00eaff88;
}
.hero-title {
    font-family: 'Share Tech Mono', monospace;
    font-size: 2.7rem;
    color: #00eaff;
    letter-spacing: 2px;
    margin-bottom: 10px;
    text-shadow: 0 2px 18px #00eaff55;
}
.hero-desc {
    font-size: 1.25rem;
    color: #b0c4de;
    margin-bottom: 22px;
}
.hero-social {
    margin-top: 18px;
    display: flex;
    justify-content: center;
    gap: 22px;
}
.hero-social a {
    color: #3498db;
    background: #222;
    border-radius: 50%;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.6rem;
    box-shadow: 0 2px 12px #00eaff22;
    transition: background 0.2s, color 0.2s, transform 0.2s;
    border: 2px solid #23272b;
}
.hero-social a:hover {
    background: #00eaff;
    color: #181818;
    transform: scale(1.15) rotate(-6deg);
    box-shadow: 0 8px 24px #00eaff44;
    border-color: #00eaff;
}

section {
    max-width: 950px;
    margin: 0 auto 40px auto;
    padding: 0 24px;
    animation: fadeIn 1.2s;
}
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(30px);}
    to { opacity: 1; transform: translateY(0);}
}
h2 {
    border-bottom: 2px solid #00eaff;
    padding-bottom: 10px;
    color: #00eaff;
    margin-top: 0;
    font-size: 1.5rem;
    letter-spacing: 1px;
    font-family: 'Share Tech Mono', monospace;
}
.card-list {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
    gap: 32px;
    margin-top: 24px;
}
.card {
    background: linear-gradient(120deg, #23272b 80%, #3498db 100%);
    border-radius: 18px;
    box-shadow: 0 8px 32px #00eaff22;
    padding: 28px 22px 22px 22px;
    display: flex;
    flex-direction: column;
    align-items: center;
    transition: transform 0.2s, box-shadow 0.2s;
    border: 2px solid #3498db33;
    position: relative;
    overflow: hidden;
    animation: fadeUp 1.2s;
}
@keyframes fadeUp {
    from { opacity: 0; transform: translateY(30px);}
    to { opacity: 1; transform: translateY(0);}
}
.card i {
    font-size: 2.3rem;
    color: #00eaff;
    margin-bottom: 14px;
    background: #181818;
    padding: 12px;
    border-radius: 50%;
    box-shadow: 0 2px 12px #00eaff22;
}
.card-title {
    font-size: 1.25rem;
    font-weight: 700;
    margin-bottom: 10px;
    color: #f5f5f5;
    text-align: center;
    letter-spacing: 1px;
}
.card-desc {
    font-size: 1.08rem;
    color: #b0c4de;
    margin-bottom: 14px;
    text-align: center;
}
footer {
    background: rgba(34,34,34,0.97);
    text-align: center;
    padding: 24px;
    margin-top: 48px;
    border-radius: 24px 24px 0 0;
    box-shadow: 0 -4px 24px #00eaff22;
    color: #b0c4de;
    font-size: 1.08rem;
    font-family: 'Share Tech Mono', monospace;
}
@media (max-width: 700px) {
    body {
        font-size: 1rem;
        background: radial-gradient(ellipse 120% 100% at 50% 0%, #23272b 80%, #3498db 100%);
    }
    .main-nav {
        flex-direction: column;
        gap: 0;
        padding: 8px 0;
        font-size: 0.95rem;
        position: static;
        box-shadow: none;
    }
    .main-nav a {
        padding: 10px 0;
        border-radius: 0;
        justify-content: flex-start;
        font-size: 1rem;
        width: 100vw;
        border-bottom: 1px solid #23272b;
    }
    .main-nav a:last-child {
        border-bottom: none;
    }
    .hero {
        padding-top: 60px;
        min-height: 40vh;
    }
    .hero-bg {
        width: 100vw;
        height: 60vh;
        top: 0;
    }
    .hero-content {
        padding: 0 8px;
    }
    .hero-avatar {
        width: 70px;
        height: 70px;
        margin-bottom: 16px;
    }
    .hero-title {
        font-size: 1.3rem;
        margin-bottom: 8px;
    }
    .hero-desc {
        font-size: 1rem;
        margin-bottom: 14px;
    }
    .hero-social {
        gap: 10px;
        margin-top: 10px;
    }
    .hero-social a {
        width: 32px;
        height: 32px;
        font-size: 1rem;
    }
    section {
        padding: 0 4px;
        margin-bottom: 24px;
    }
    h2 {
        font-size: 1.1rem;
        padding-bottom: 6px;
    }
    .card-list {
        grid-template-columns: 1fr;
        gap: 16px;
        margin-top: 12px;
    }
    .card {
        padding: 16px 8px;
        border-radius: 12px;
    }
    .card i {
        font-size: 1.5rem;
        margin-bottom: 8px;
        padding: 8px;
    }
    .card-title {
        font-size: 1rem;
        margin-bottom: 6px;
    }
    .card-desc {
        font-size: 0.95rem;
        margin-bottom: 8px;
    }
    footer {
        padding: 12px;
        font-size: 0.95rem;
        border-radius: 12px 12px 0 0;
        margin-top: 24px;
    }
}